Ford Mondeo MK4 BCM Failure Due To Faulty Screen Wash Pump This Advice Will Save You £££ Focus C-Max
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- เผยแพร่เมื่อ 25 เม.ย. 2021
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Utterly amazed this isn't part of a recall. I'm going to check mine immediately but a suggestion down below by John PM is absolutely spot on. It would only require a simple inline modification from Ford, between the existing male/female connectors that breaks the path of any fluid being able to travel up the wires into the BCM. Mine's a 14 Plate, assuming the Washer Pump is ok and no apparent leaks, I'm going to splice some spade connectors into the loom so that there's no possibility of the fluid using capillary action to do it's evil deed.
According to Ford they have no recollection of the fault lol…. Utter rubbish.
Yes i suggested doing that, but for some reason guy wanted it kept original?
Thanks for watching 👍🏼
The exact same problem here, great video, very good explications, found it to late unfortunatly, spend 1000 quid, for all you've described, used bcm , reprogram the bcm and all that... Great video!
Thanks mate, unfortunately yes it’s usually the case of been too late with these.
My advise is solder up the wire at a few points to stop this happening again, or just cut the wire at few points and add in connector joints to break the direct link.
Have a look on my channel always doing similar videos 👍🏼👍🏼
Without doubt a lifesaver video, changed my pump today then cut the wires and placed an inline connector block so the water is stopped in it's tracks, my arse was like rabbits nose pulling that BCM block out to check the terminals thankfully no corrosion in sight. Great video mate, many thanks.
Yes it’s becoming a very serious fault that Ford claim they have never heard of 😂
That’s what I do with all these, cut the wires and join with a connector joint job done.
Also find the new pumps Ford are still selling are not modified at all, so all these people paying out for new pumps are not really doing anything positive just throwing money down the drain.
Thanks for watching…. Have a look at my other videos do weekly vlogs always full of useful mechanical content 👍🏼
Was sent the video from someone in a forum. Stripped my down after weeks of weird electrical faults and battery drain. No corrosion on the BCM so I'm gonna give it a good clean and change the pump and terminals. Even if it doesn't work it's saved me the stupid money Ford wanted just to "investigate" a known fault
@shawnbadcock6539 yes 100% do it anyways as preventative measure….. takes long time for corrosion to happen, there are not always visible signs of damage
I have a mondeo. Great informational video.
Thanks for watching, much appreciated 👍🏼
We cut the plug connector off pump end and solder the wires back on and that stops water travelling down wire in future
Yes that’s a really good idea, then no chance of it happening again.
Thanks for watching 👍🏼
Similar way is put a new plug and socket a few inches from the original, just break where the water tracks up the wires...
To be honest Ford should be covering costs on these faults
You’re a good man
Thanks mate appreciate it 👍🏼
All kinds of fluids getting inside the wires and connectors in a similar manner is a very well known problem in a car model that our code of conduct forbids me to say out loud... As cars have become bloated with unnecessary electronics this is the result. Just bought a Mondeo dead cheap, guess why I'm browsing YT right now.
Oh yeah years back come across loads of this issue, with diesel and oil travelling up wiring harness….. but as you say everything is over complicated these days.
No reason a simple screenwash pump needs run via an ECU
Thanks for watching 👍🏼
Focus 3. Same problem. The ignition would not turn off, and the engine continue working, with the key removed. Cleaning of BCM 3 helped.
Funny you say that, had a few people call me about what you you described.
I did have my suspicions about the focus having that same issues.
Thanks for watching 👍🏼
Exactly the same with focus mk3 or anything with that pump. Good idea to cut the wire and add some sort of a connector what stops the water travelling trough the wire.
Yeah that’s my recommendation to stop this happening, some people don’t want that done the harness been cut for some reason, and opt for new pump…. Imo pointless but whatever the customer wants I do lol
What? I seen oil push from oil switch to ECU plug but this is unbelievable 😂😂😂😂
Yep and becoming a HUGE issue on most of the Ford range of this era …. That Ford choose to ignore
This exact issue is whats wrecked my bcm in my 2012 ford focus,
I’m finding this is almost a problem with every Ford model of this era
Had exactly same problem last week: lights and wipers came trough with vehicle locked. Cleaned the BCM terminals and used a hair dryer to dry the BCM (there was blue fluid all around). The main issues had gone, but now I am having a fault code related to brake switch and an Engine Damaged warning on the cluster (no loss of power at all). Will try a new brake switch, but very likely, I think the BCM will need to be replaced :(
Yes I think the BCM will probably be damaged, get all sorts of weird faults on them.
Best fix is to replace pump with aftermarket one and use universal connectors.
Let me know how you get on 👍🏼
Bang on. Great video.
Thank you so much for this explanation.
2014 Ford Mondeo Estate Titanium X on 126k
Still keen to keep it on the road.
Had symptoms similar to BCM issues, found your video and it was exactly as you described!!
Yes I find to cut the OE plug off and wire in universal plug and pump and you isolate the issue.
Thanks for watching appreciate the comments 👍🏼
Cheers for adding this. Will direct my garage to this video as I'm wondering now if this is an issue with my MK4 Mondeo as I've replaced the washer pump on mine within the last year and recently while activating the rear wash wipe the car had what can only be described as an electrical mental fit. Every warning light, scrolling through every warning message on the HMI, dials going zero to max, oh and the engine cut out and refused to restart. Only issue this all happened while I was in the outside lane on the local express carriage way overtaking a lorry at 70. Not something I want to repeat ever again. Only resolve was to pull a battery terminal and reconnect as the car sat waiting for the RAC with all the lights on as they wouldn't switch off. RAC sent me a PDF with 6 pages of error codes upon scanning which after clearing not one has returned so far. As of today car works (touch wood) like nothing happened.
Yes unfortunately this sounds like your problem.
If BCM can be saved, you can cut the wires to the pump and solder them at various points and that stops the capillary action taking place.
Thanks for watching 👍🏼
Use an aftermarket pump, then cut the wiring to the plug a few inches above then put an extra connector in and seal the car side of the new plug and put a drain hole on the pump side..... cheaper fix... or for real safety do this near the BCM plug, break the water route....
Yes that’s an idea but customer request was to leave everything standard unfortunately
Yep, plus aftermarket pumps are only several dollars each. I wouldn't use a fomoco part in this instance.
Yes definitely the way I would have done it, but customer requested the Ford pump for some reason
I showed this video to my auto electrican who laid bypass wiring with multiple connectors. Said he couldn't get a new pump. But it seems I am still getting water into the BCM sadly. In my case maybe water is getting in another way. Anyone have any ideas?
Right I worked for a truck lighting company. This looks like capillary problem which our R & D came across on early lighting systems.Believe we used a system of special seals in the harnesses to overcome that problem. Looks like ford have messed up. I wonder how many other models have the same problem. From my own engineering experience maybe an t eruption
I’m sure the focus do the as well, have known this happen with diesel and oil on pressure sensor plugs.
More common than people realise
Very interesting.
I have also experienced the BSM “Nervous Wreck” symptoms you described, but always after heavy rain.
However, this is the 1st time I have seen this problem reported on the web, so I think it must be a rare event.
Water was finding its way down onto the green BSM plug and socket area as shown in your video.
The source of the leak appeared to be the seal at the bottom of the windscreen where it fits into the black guard panel. I attached black electrical insulation tape, as a temporary fix, across the whole of the bottom of the windscreen as the windscreen heater electrical connectors were getting wet.
There has been no recurrence for 2 years now, but the tape needs to be replaced about every 6 months.
I think this problem probably only occurs when the windscreen is replaced by a poorly fitting or fitted spare.
In my experience water tends to find its way downwards and perhaps as far as the washer pump?
As you say, the pump connector pins could be becoming wet from the pump leaking but it’s quite a long way up to the BSM.
More info:-
Mondeo 2010 Mk4 Hatchback 1.8 Diesel Zetec.
It had to be towed into a Ford dealer, BSM replaced and reconfigured for £780.
Ford said no leak was detected by their ingression test?
I can assure you it’s 100% fed from the seals on the pins in the pump failing (screen wash) is fed through the copper core to the pin where it connect to the BCM.
I work in conjunction with main dealers and member of mechanic only groups, and I’m seeing this issue been posted daily.
Technical term is called capillary action, it’s a more common issue than you think, very common on oil and fuel sensors and you find your ECU been flooded with oil and fuel = same issue.
If you look on the video you can see the fluid is been fed though only 1 singe pin (wire) then the acid in the screen wash eats into the resin in the circuit board causing even worse then water damage.
Thanks
Thanks for watching 👍🏼
I have a 2010 focus now developing these problems, hopefully caught it early. With mine i use the washers and the radio loses signal so could be worse. Thanks for the info 👍
No problem mate, cut the wiring to the plug on the screen wash pump, and re join with connectors that breaks the link for the water ingress
@@CarAddictGarageNE I think I dodged a bullet there, I changed my pump for an eBay special and realised the pump on mine has a separate small loom wire with a connector in already so the water cannot make its way to the bcm. Swapped it and solved the issue 😅
@craiggiles5285 yeah that’s always the way forward cut and add a connector in place.
THank you sir I changed my pump o my2011 estate mondeo and it trips done electrics only when using rear washer for long periods I will check this to see if this is my problem broke down too only since I changed pump.
Yeah definitely worth doing the plug change to avoid future failure of the BCM
Maybe a junction box in the circuit would solve this problem. Ie the wires connected to a brass strip inside the box thus stopping the capillary action with a suitable drain / filter. I may have to check mine as my reverse lights have just started playing up.
Definitely check it mate…… best way is buy an after market pump, cut the plug off and just use 2 universal wire plugs= problem solved
Use a couple of mini relays at the BCM end, that would physically separate the BCM from the pump.
Yes that’s very good idea mate 👍🏼
Thanks for watching
@@CarAddictGarageNE thanks for the video, although come to think of it I might have used an IP-68 Sureseal at one end, cheaper!
You could try sealing pins area of pump using bondic weld. Bypass the wires from the pump to the module and reconnect new wires to the module. Clean all corrosion on contacts at the module. Use a hair dryer on the module green plug and the b c m and see if it works after reconnecting. If not source bcm. And re - program. This is what I hope to try on mine.
Best way is cut to OE plug to pump, fit 2 universal spade connectors and fit an after market pump, problem solved (from happening again)
@@CarAddictGarageNE like faston connector ?
TBH any kind of connector you like, as long as it cuts the direct link
I have a 2010 volvo V70 it has exactly the same pump fitted never had that problem..but I have just had to replace it as it had low pressure..unfortunately the front bumper had to be almost removed to get to the screen wash bottle😢
Yes the V70 is not based on the mondeo platform, different set up.
But the Volvo S40/V50/C30 are focus based and believe they suffer similar faults
I'm experiencing this problem right now mondeo mk4 2012 , first one of the headlight wouldn't go off , and then engine malfunction message popped up and the front windscreen heater stopped working along with the heater fan/blower. After seeing this video, I checked the BCM, and found lots of corrosion on the same spot as in the video, I cleaned it all that sorted some of the problems, but now headlight won't come on along with the heater fan and front windscreen heater. Not how easy is to replace the BCM.
Thanks for the video
Yeah unfortunately looking like the BCM is past repair, more than likely be replacement.
Make sure to cut the wires near the screen wash motor plug, and re join with connectors, that stops the water been able to track up the wiring
@CarAddictGarageNE just got a new BCM , I'm literally about to put it in , I have added a connector to the wires with the drip point , it was quite an operation, fingers crossed my new bcm sorts out the problems.
@shorshhussein4606 have you had it cloned over?
@CarAddictGarageNE I have got it cloned, and everything works as normal again, cost me £130 for everything, thanks for the great videos and all the informations and advice,
@shorshhussein yeah no problem at all.
Pleased you got sorted 👍🏼
Past week our mk 4 mondeo stopped starting. Garage said bcm was wet. They cleaned terminals and it working. Got advised could be windscreen but on doing research....come across this. Not the best time to be replacing cars now with extortionate prices of cars
Yes unfortunately new BCM are crazy price and all the working second hand ones are been snapped up, so almost impossible to get hold of, or very expensive for second hand units…. Then they need cloned to work on your vehicle
had a 10 plate mondeo zetec auto with an kangaroo issue the gear box was so jerky for some odd reason it used to kangoo at junctions
Ah them powershift gearbox’s were horrendous for problems, eye watering repair costs.
Seams to be the way with modern cars
Thank you very much for this video. I showed it to my auto electrican who laid bypass wiring with multiple connectors. Said that he couldn't find a replacement pump. But it seems I am still getting water into the BCM sadly. In my case maybe water is getting in another way. Anyone have any ideas?
Yes since doing this video, what I was going to mention but the customer insisted on buying a new genuine new pump….. the logical way around this and to prevent it, is to buy an aftermarket pump, cut the plug off the harness, replace with universal plug and connect to universal pump, and that’s problem solved.
Also I do believe there is issues on these with leaking though the scuttle panel, in and around the intake for the interior fan/pollen filter.
definitely worth a google as something rings a bell about common water leak in that area onto the BCM
Thanks for watching 👍🏼
That's a ridiculous design, Ford should accept a design fault for this and offer a contribution.
Thank you for watching 👍🏼
I honestly did expect Ford to own up but played dumb on the phone when ordering parts, have a video of fault but can’t add to this video
I've got a Mk4 mondeo. The screen wash motor is working but no water is coming up to the screen. I've disconnected to pipes at the screen, but I'm going to check this out as well.
Cut the wiring to the plug and re join with connectors, that stops the link for water ingress.
Sounds like filter in the tank is blocked
@@CarAddictGarageNE I've checked mine and there's no sign of corrosion on that plug. I've ordered a cheap washer motor off Fleabay. I tested it off the vehicle. One side does the rear washer and the other does the front. One of them isn't forcing enough water through the pipes.
@Jack_Warner I would still cut the wires and re join as a preventative measure.
Will be detached pipe more than lightly
@@CarAddictGarageNE It's all working OK now. I bought a pump off ebay.
Found this too late. My Mondeo failed MOT on lights and the diagnosis is corrosion in the BCM. They now want 4 figures plus at the Ford dealership to replace and reprogram a new one. They let me in to see it and it was the exact same point of water ingress. The manager is new to Ford and claimed to have never heard of this fault and the boy who had been working on it said the car is "from before my time!!!" Its only a 2012 plate FFS.. Anyway I gave them an education on how it happened. I now have the option of shelling out for it or taking the car back and sourcing a second hand like-for-like BCM (and sealed water pump of course). Managed to find a BCM at £75 with exact same part number but it was in a Galaxy before. Not sure if that will just plug and play or if it will still need programmed.
You want to give that manager a good education course mate!!
It’s happening to the whole range Focus, S-Max-C-Max and mondeo …. Read the hundreds of comments confirming this.
Simple trick cut the 2 wires from the pump and stick any old connector on, that breaks the link.
Yes you can get second hand one and get it cloned…. Unfortunately due to this fault because HUGE issue across the range FORD are deliberately ignoring, it’s like gold dust finding BCMs
Just get a used one and program it with Forscan. Used BCM cost about $80-100 and Forscan is free or $12 year license.Ford is ridiculous with these repair costs.
@bobbyz23 becoming like gold dust to find undamaged BCMs these days
@@CarAddictGarageNE Just tfind one in working order with a warranty .All of them are not bad people are not going to sell you a bad BCM if it’s got a warranty and in working order
@bobbyz23 I’m referring to people buying used ones and having them cloned
Great info and interesting phenomena... If disconecting all BCM connectors for cleaning purpose, is there any need for re-programming the unit after that? Does it loose its ID?
No unplugging won’t cause any re programming, just your radio code possibly, and it may reset some of your personal settings, nothing more than that.
Just make sure to disconnect battery before unplugging anything.
Thanks for watching 👍🏼
A small drain hole could be carefully drilled in the pump, where the electrical socket is, so any leaking fluid will drain out rather than be forced up the wiring.
@Numberonecock
Found the best way is to simply cut and join the wires to the plug, you break the link it can’t happen again
So my washer motor has just packed up yesterday, it's a 2012 mk4.5, ex taxi, 263,000 miles. I saw your video and saw that it looked relatively easy to replace the pump. I checked the fuses first below the glovebox, all in tact and no signs of waters ingress or corrosion anywhere, so back underneath and removed the washer pump, it did look a bit gunky, the connecting pin block showed no signs of wet. I have ordered a pump from ebay, £7.95(new) , after market obviously. My question is, if the new pump doesn't work and the fuses are OK, what else can I look at? Could the washer button on the end of the stalk be kaput? Or any other ideas? Thanks in advance.
Thanks for watching you ideally need to disconnect the 3 main plugs to the BCM that’s the point the water/screen wash enters.
Yeah bar the switch, pump and fuse, your into wiring faults unfortunately.
Thanks for sharing the video, very informative. Should the battery be disconnected before unplugging the connector at the BCM when checking for corrosion? 😊
Yes I would definitely disconnect the battery just to be on the safe side.
Thanks for watching 👍🏼
Thanks for replying 🙂
disconnect both + and - from the battery or just the - ?
I guess i’ll also need to insulate the lose cable so it doesn’t accidentally reconnect. 😊
I would just disconnect both and leave it 10 mins or so before stating, but is it’s difficult to get to the other, disconnecting one will do.
Just pop something over the terminals to stop them touching.
Dp you think this could cause a battery drain as well ? Car runs drives sound but after leaving it over night won’t start flat as a fart also the window pump has stopped working glad I watched this video gonna get it jacked up in the morning
First up just do basic health check on the battery, check its correct type for car AMG/EFB or standard…. But yes the BCM can cause battery drain, as it actives everything when it’s supposed to be shut down, you may find the dash lights stay on way too long when car is locked up
@@CarAddictGarageNE Brand new battery mate, still trying to find out what’s causing it to drain soon as I watched this video I changed the washer pump worked mint but now only comes out the rear washer for some reason
@bobjenkins8558 there’s a 2 way valve on the pump, possibly defective or mixed up
i had a Ford mondeo MK4 we spend too much money when fixed at the dealership they are a nice car but in this problem you will buy another MK4 Mondeo
Yes unfortunately like must newer cars, when electrics start going wrong it costs a fortune
very interesting, tho tbh i'd be even more likely to just use a pattern pump in that case, it cant be any worse or possibly atleast a small chance it maybe better, i was also interested in why you stressed so much that you wouldnt usually advise not using screenwash, why is not using screenwash such a bad idea? i used it like everyone else does for years but any lubrication and anti streak properties are no more than extremely negligable and also got fed up of even correctly diluted stuff staining my paintwork and with anything zetec climate and above you have heated washer jets anyway so even any very slight antifreezing effect isnt as relevant these days, putting waterproofing gel in the connection plug would be my recommendation if anything tbh, you wont get any water ingression up wires if you fill the socket with that ;)
Yeah not sure if I added that in, I always put silicone grease inside the plugs and pins.
But best way around is to retro fit aftermarket pump, this customer requested genuine Ford one.
Main reason I advise screen wash to stop freezing as most cars these days don’t have jet heaters like some Ford’s and Volvo, even worse the screenwash tanks are right down in the bumpers so no engine heat gets to them, and in direct cold air flow so they just freeze up solid.
But yes most screen wash solutions are useless
@@CarAddictGarageNE Agreed and if not the correct dilution or just crap screenwash (like most) they can actually cause congealed debris to clog the filter that is on the pump in the screenwash tank and in extreme cases clog the jets themselves, bring back the days that having an older car meant welding on a sill instead of electronic woes :D (just spent £200 having my abs/ecu module rebuilt by a specialist (posted it to them) for my volvo v50 that i use as my work car (and it just had new dpf sensor and hoses last month lol) my other cars couple of imps (no head gasket comments allowed lol) and a 2007 focus zetec climate 1.8 tdci i;ve had from new (waxoiled from new by me so one of the few with front wings etc completely bubble free lol) and it doesnt have dpf etc :)
Hence I only use top quality screen wash and regularly flush it out.
Yes my S80 D5 has some daft electric faults because the alarm siren module is bust, it stops the sun roof working.
Yes them V50 share a lot of Ford items, I used to have a D5 V50 was fantastic, the D2/D3/D4 are just all Citroen/ Peugeot units.
Them mk2 focus are a cracking car, but one thing that put me off them 1.8 TDCI was when the reserved to a wet belt from a chain to crank shaft, make sure to change yours (I don’t mean the upper external timing belt) this is the rubber timing belt that runs inside the engine, utter madness IMO
Great vid 👍.. I have 2010 Mk1 Kuga 2.0Tdci Titanium - replaced washer pump with after market one, washers still not working - narrowed it down to the BCM, I'm guessing as like Mondeo's, S Max's, Galaxy's, and Focus's .. this is likely to be same problem ??
Also have a 2008 Mondeo Titanium Estate 1.8TDCi - the battery seems ok but if left for a day or 2 i have to jump it, I have noticed when i have driven it, on the screen of the dash clocks the stereo / aux keeps disappearing also if the date and time are set that pulls the battery down too.. is this likely to be a BCM fault or a fault in the dash clocks or a bad earth somewhere.. Appreciate any advise you can give.
Cheers PW
I do know dash clocks are a different issue on those, and as you say it’s most of the Ford range of that era suffer this BCM issue
Thanks for watching 👍🏼👍🏼
is it save to disconnect the plug to check if it is ok what happens when i put it back will there be any error codes
I would disconnect the battery first just to be on the safe side, check you have your radio security code you may need that.
Bar that be ok to disconnect, just be careful with the plug 👍🏼
Ford Galaxy 2007 same problem, it showed me that the window cleaner was missing even though the tank was full and the bcm was disconnected altogether. Thx
Yes all the Ford vehicles of that era are very similar set up.
I've got to say that looking at my motor, there is no way that water can get from the pump, up that wire. I've dismantled my motor and there is a rubber gasket at the bottom of the motor that stops any water rising any further. The motor would stop working as the terminals would short out if water was present. You must have got water in that plug some other way.
It’s called capillary action mate look it up 👍🏼
Been happening to vehicles for years, with oil from oil switches, to fuel from fuel pressure sensors, to screenwash from pumps.
Read the hundreds of comments on my post, or simply look at the millions of posts all over the internet.
110% the cause of this issue
@@CarAddictGarageNE I know what you're saying, but if water was to get up to that wire, it would short out the motor first. I did check mine and there was no sign of any water on that green plug or in the connector where it joins the motor. I believe you, I wasn't being contradictive.
Like said just google it mate it’s all there millions and millions of posts, and hundreds of comments on my video alone.
It’s capillary action, I’m not going to waste my time explaining it, just google it there will be a detailed explanation of wait it is and sure hundreds of videos showing how it works.
Been a thing for years, loads of Vauxhall has the same issue in the fuel pressure sensor and would flood the ECU with diesel.
Very simple the rubber fails and water is fed though the copper core (within the PVC coating) to source (the BCM)
same problem i think, my BCM dead there was a Corrosion and i cant start the motor, only lights and wipers working...
Yea I think the BCM also runs some of the immobiliser settings, have heard a few can have non start issues
My 2010 mk2.5 turbo focus has done this at just 76,000 kms , im in Australia so its happening world wide , costing me ,$600 aud to get bcm tested and fixed better then going thur the hassle of new bcm and cloning i guess , plus sick of my wipers not turning off lol . How do you know yougot aftermarket washer pump thou they all look same?
Yeah definitely a world wide issue I would say…. Would be nice to see Ford do a recall, but I very much doubt it.
To be honest even the genuine ford pumps have no markings, it’s no so much after market pumps, it’s adapting the plug so this issue can’t happen again.
Thanks for watching 👍🏼
Why not re wire from pump to bcm cutting harness and by pass so no more water travelling of water up to bcm. Also seal pins at pump
Easiest way it to simply fit an aftermarket pump and cut the plug off the harness and use universal connectors….. this case customer request was to keep 100% standard hence ford parts used
Jaguar XF has exact same fault, washer pump is same type too
Yeah they used a lot of Ford parts especially the older ones.
Thanks for watching 👍🏼
Where did he buy the bcm from and where did it get sent for cloning? Same thing has happened to my car🙈
You can just buy a good used BCM provided it’s not water damaged and the matching codes, plenty of online ECU testing and repair companies offer a cloning service, just send both in and the replacement is cloned to the original
Typical dealers never wanting to take the blame
Clear to see the issue, shocking the pumps have no been revised
Always the same with dealers/ car manufacturers
Thanks for watching 👍🏼
I have this exact issue on my 2012 mondeo estate, has cost me £500 for a second hand bcm with code cloned from old one then further £250 to get the keys reprogrammed. Now I still need to try to fix the cause, I may try the suggestion of removing the wiring clip from motor and soldering on the wires so the water coming out the pump falls away and does not go down the wires inside on its own by capiliarry action.
Did you get anywhere talking to Ford as this really should be something they cover due to the pump being faulty to start with?
My bcm board was badly corroded directly under the pins where the screen wash has come through, with the tell tale blue corrosion. It caused reversing lights to come on and the car gear selector to lock in park.
Yes this was doing that reverse lights flashing, then all the lights would flash, windows up and down, battery had to be disconnected and car recovered in.
When I rang ford they claimed they knew nothing about it, what we know is a pack of lies.
Yes I would definitely alter the wiring plug that seams to be the way forward.
Thanks for watching
Update: I changed the corroded blue screenwash stained ECB 12 months ago by local garage and also paid them to fit a new genuine Ford wiper motor. Car was great for a year but now the same problem has returned the week that I started using the wiper washer a lot in the recent cold spell, pretty eure this tells me the new Ford washer pump is pumping water down the wire the same as the old pump did! Think I will try the solder the wire on to the motor trick suggested on this forum before the ecb gets badly corroded again and needs to replaced a second time!
Yes either solder the wire or cut the wire and join them with 2 male/female joining spade plugs to eliminate it.
Or just fit a universal pump.
I was annoyed when I asked Ford are these a revised pump and they couldn’t give me an answer
Just had this happen on mine, started with reverse lights staying on, then wipers went crazy, so I googled it and found this video. I opened the BCM and it was wet inside, exactly where the video shows. 😟
Just cut the wires after the plug for screen wash pump, and join them with with a connector it won’t happen again if your break the link.
Unfortunately will need replacement BCM and clone
@@CarAddictGarageNE I've got the board out now, looks in great condition, no green or water, just a few drops in the one socket. I'm cleaning it up and will try it out, after I do something about the washer pump wiring design. Thanks for the video, I'd have been lost if I hadn't found it.
@Numberonecock
Honestly just cut the wires near the plug, and just re join with crush connectors, job done will never happen again 👍🏼
HI Mate, would you say that this could be a related issue, Passenger door intermittently unlocking, now car completely dead, Convers+ unit has zero display. Like there is no battery connected to the car.
Thanks
When this BCM starts to play up all sorts of weird things happen, this had flashing reverse lights, windows going up and down on there down.
It’s not a big job just remove the BCM and inspect the plug I showed on video for water markings, and look into the pins on the BCM to see if water/screen wash has been getting into it
Thank you! I'll check tomorrow
Hi mate, I have the same problem. What is the name of the company that reprogrammed the BCM
The customer actually sent the units off to be cloned, sure it was ECU Express….. but there is loads of places that can clone them over, depending on extent of damage and if the the second hand one you pick up is all good.
Just make sure the numbers match perfectly from your BCM to the one you buy 👍🏼
Good vid, I have a parasitic battery drain on a mk4 2007 and cannot for the life of me find out what’s causing it, checked all the normal culprits any suggestions?
Thanks for watching 👍🏼
Have got tried checking the BCM as when they get water damage there can continually keep power running and not shut everything down, as they often go fault and continuously stay in standby mode
@@CarAddictGarageNE hi thanks, is that the bum in the passengers side cabin? It all looks ok, what I have noticed is there is lots of condensation inside windscreen wonder if water is running down into dash.
Yes but you need to drop it down like on my video, and inspect the pins for the blue/green corrosion marks from moisture getting onto it
@@CarAddictGarageNE cheers will have a look tomoz
No problem 👍🏼
Happens with Galaxys, as well. 8 -(
I would think a similar set up and other versions S-Mac/C-Max/ Focus
Excellent video my friend very informative, I have a 2008 smax TDCI 1.8 titanium with only 82,000 miles on the clock
It’s going into limp home mode, saying “Engine Malfunction” I’ve had the injectors all replaced with new ones, a new EGR too, but now my front & rear windscreen washers has stopped working, I’ve checked the fuse & is ok, I’ve ordered an aftermarket new pump off eBay, do you know if this problem effects the smax as well as the Mondeo? Why I ask is the heater comes on & off when it wants too, could that be the start of the electrical clitches?
Anyway keep up the good work from a very happy viewer in sunny South Wales
Thanks for your feedback much appreciated 👍🏼
I’m sure the S Max is based on the Mondeo (not 100%) so definitely a possibility yes, I know the focus also have this fault.
Heater fan fault probably the heater resister common fault…. But only use genuine quality Bosch, Hella, or what ever ford use OE not unbranded rubbish or car will go up in flames
@@CarAddictGarageNE Thanks for the reply my friend & the very useful information, keep up the good work & excellent videos
Happy Easter my friend 👍🏻
Mondeo Mk4 and Ford s-max Have similar electronics.
C MAX/focus seam to have similar issues also
The malfunction is probably due to turbo vanes not moving properly, or at all. BTW, I hope you have changed your internal belt. Max 125k or 10 years and it is usually engine totalled if it goes. Big money (Close to £1k or you are not getting the job done properly) to change but...
I've a 60 plate Ford focus with the same issue
Yes the focus has a very similar set up to the Mondeo, sure I remember something about rain water leaking into the focus BCM as well
@@CarAddictGarageNE the cars not moved for a year. Nobody wants to take it on! Those that do say I'm looking at about one thousand!
I dread to think the costs involved on these new cars when they age, the amount of ECUs they have is just crazy
You've no choice other than to take the loss, brake and scrap them so it seems!
And it’s only going to get far worse I bet
Hi, in this week my 2011 monde had some electrical problems regarding to my headlamps not working, oppening automaticly and not closed. Also signal not working as true or speed limitter keys etc… and i took away a service to my car and GEM take on water at C1 engine socket at same pins. (Green socket). This problem regarding to screen water pump? Should i replace it? Tnx.
Best fix it use an aftermarket pump, cut the plug off the harness and fit universal one= problem fixed for very little money.
Provided BCM is not already water damaged that is 👍🏼
Which pump i buy original or sub-industry? And in addition to you said that can few cut the wire where near of the plug when replace new pump. Provided that the water follow the wire, not reach GEM again. Confirm?
Yes you can just use after market pump and use universal plug (at the pump) that will stop this happening again
I've been having similar problems where my car would suddenly go to cut out and abs and traction control light flicker on for a few seconds deffo seemed like an electrical issue but I stopped using my windscreen washers and haven't had a problem for about 3 weeks now so I'm wondering if this could be the cause for my problems? Can you not replace the pump with an aftermarket pump surely that would stop the problem?
Thanks for watching
Best way is to check the plug like on my video under the glove box, only takes 5 mins.
Well if a genuine Ford part has this issue, you can guarantee a cheap aftermarket one will be even worse.
But once the screen wash chemicals have got into the BCM the damage is done, if check and you can see blue residue around the terminal, time to get rid I’m afraid or be prepared to spend on it
@@CarAddictGarageNE I've used plenty of aftermarket washer pumps on other cars in the past without any issue maybe its just the ford one that's the problem! Not long bought the car and dont really fancy getting rid of it maybe I just won't ever use my washers haha does taking off any of the wires of the bcm cause any problems? Like will I have to enter radio code etc when I plug it back in?
Yes that’s true suppose it can’t harm getting an aftermarket one….. but if it’s leaked it’s already done the damage.
Worse case you may need the radio code you but you can pick them up on eBay for few quid you just send them your radio serial number and in seconds they send you your code…. You tube it will be a demo video how to make head unit show serial number on screen without removing.
I would definitely be checking it out….. one other solution is only use water no screen wash, will still cause damage, but it seams to be the chemicals in the screen wash that cause the most damage, eats into the resin on the circuit board.
@@CarAddictGarageNE I see where your coming from but say the wires have been getting wet and I change the pump surely they aren't going to be getting wet anymore because the new pump wont be shooting water back up the wiring loom and the wires should dry out. I'm no expert but that's my theory! Also do you know where the headlight washer pump is located? As my headlight washers aren't working and I need to change the pump
Long as no screen wash has reached the BCM then no damage has been done happy days.
Headlamp washer pump will be located just next to screen pump, very expensive last one I got from Ford, second hand will be a good option….. few daft things with these headlamp washers, make sure car is running, dipped beam on, full tank of fluid as they only operate when more than 1/4 full, and check the fuse, sometimes you need wipers going, sometimes you need to hold the screen wash button for a longer time, on some cars will only operate every set amount of cycles….. my Chrysler 300C only works when on drive, not neutral or park
hi.thanks a lot for your explanation. I have a 2009 mondeo titanium 2.2 tdi. they stopped pushing water both on the headlights and on the front glass . only the rear one works. I've been in ford, and they told me it shouldn't be the pump. as it works on the rear glass, and it is the same pump. I opened the front valve holder, but I don't see the green BCM box like in yours. maybe it's in a different position on mine? In the past days the only strange thing I noticed was that the windshield wipers sometimes went on their own without being able to stop them. even with the engine off. I would be very grateful if someone could give me some help?
Have a good look around it will be under the glove box mate.
As for the pumps there are 2 one for headlamps one for front/rear screen…. I will say the ones with headlamp washers use a different screenwash bottle and could possibly use a different pump.
On the issue of wipers and front screen wash not working, you could have a fault wiper stalk
Thanks
@@CarAddictGarageNE pomp not run. Only run one side (back side) as you know same pomp push water front and back.
Yeah same pump does front and rear window.
@@CarAddictGarageNE yes the defect was in the button i changed WINDSCREEN WIPER SWITCH. and everything is working again
Nice cheap fix pleased you got it sorted 👍🏼
Can I just stick my arm out the window and spray the screen directly 😂
Tbh that would 100% solve the issue lol
I’ve got the exact same issue with the same model of mondeo ugh 😑
It’s getting cheaper to get the issue sorted now in fairness
@@CarAddictGarageNE £625 for a bcm and £200 to program it I traded it in cba with the hassle ugh 😣
Was going to suggest that…… my original reply was “get rid” but some people get offended lol
@@CarAddictGarageNE lol I bought another 260,000 on the clock actually it was my dads taxi lol full ford dealer service history genuine ford parts runs like a dream tbh am currently waiting on a brand new focus ST ..oh yesss
I have went the opposite way sold my new L200 as prices are crazy at the mo, never been happier with my ML350 and S80 D5 between them owe me less than 2K
How can i contact you? Did you manage to solve this? Ive Got similiar problem with smax 2010, ive cleaned the resifues But unfortunately my reverse light do not work, i see some c1120 fault code still. Ive ordered new pump also, will replace it soon.
It was more the reverse lights going mad flashing, i do believe these can suffer issues with the reverse switch, bulbs, fuses and wiring in tailgate to reverse light.
Usually when BCM totally fails all the electrical systems on the car go mad.
Thanks for watching
@@CarAddictGarageNE thanks for reply. Ive had the same situation with flickering lights. Last friday i replaced pump with origineal one, also i cut cables and soldered it back, no more floodong of the computer. Unfortunately i still dont have my reverse lights working. The bulbs are ok, As soon As i choose reverse Gear the fault code comes. I have checked all connections and there are No short corcuits. Do you think that bcm can be broken? Thanks in advance.
Sorry but my autocorect works not so good for not my first language
That’s good work 👍🏼
Could possibly be permanent damage to the BCM, but is does seam a very common issue with reverse lights not working on these, be good find out what the cause is if not BCM
Few days ago i have turn on passenger seat heating, and now i can't turn it off 🤨 anybody have an idea how solve this problem?
Could just be a faulty switch
stesso problema Ford Galaxy 2012 ,
Yes I think the whole range suffer from this.
Had ford Eco Sport in last week same issue this was 2018 car
its not thats rare Im afraid the peugeot 207 gt's used to do the same its called capilliary action, glad I found out its also on the mondy mk4
Yeah remember that on the 207 sure a few older PSA vehicles did that as well.
Thanks for watching
hahahaha omg the water travels up the wire. wow thats must be a powerfull pump. lol
Not powerful just defective that it sends pressurised water through the copper core wire, technical name is capillary action, very common issue years back with oil on oil pressure warning lights, also with diesel off sensors on the HP fuel pumps
Having changed the BCM at large cost I have now disconnected the wire to the headlamp washer pump as that pump is very high pressure for cleaning lights without a wiper so maybe more likely to be the pump that is pushing water down the power wire, but this is only a guess at a possible fix to stop it by happening again.
I don’t believe the headlamp wash pump has this issue, it’s only the screen wash pump that causes this issue
Andrew Welsh please (Google) capillary action of fluid along electric cables. It’s a well known fact before putting your foot where you shouldn’t.
Even more interesting when it’s oil/petrol or diesel lol.
Better still don't bother with a Mondeo
Have to admit never liked the MK4 mondeo, could possibly be tempted by a 2.5T tourer, with the Volvo T5