Give your MAF a BATH (How to clean your Mass Airflow Sensor on F30 BMW)
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- เผยแพร่เมื่อ 30 ก.ย. 2024
- Hi Everyone,
Today, we're going to show you how to give your maf (mass airflow sensor) a bath. Why is it important to clean this sensor?
The Mass Airflow Sensor tells your car the volume of air coming into your intake. without it (or with a dirty sensor), your car doesn't know the appropriate mixture of fuel to use, which can result in a car that runs rough or very poorly.
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Bryan Kiefer
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I’ve noticed my car hesitating under heavy loads and when ever it would happen I would just let off. Then today I was feeling a little ballsy and I stayed in it. It felt like the car was about to blow up. I finally got the CEL I was waiting for and pulled the code and got p112f. For a faulty maf. Took it out and it looked like I wiped my butt with it. Cleaned it with brake cleaner and she’s running better than she ever has.
Brake cleaner is not advised. It leaves a residue on the hot wire and is too aggressive
Big help to you.... i actually had engine light on.... and made appointment to drop off car at the dealer
just save $500 to $1000 at the dealer because they would just replace with new + labour
i couldn't wait so i did scan myself and got 3 code /P0100/P0111/P0113 , then search TH-cam and find this video
All i did was pull Mass and Map sensor off
2012 135i M sport n55 /e88 motor
The Map sensor that connected to the charge pipe had oil on it,
Bought a can of MASS AIR FLOW CLEANER from the auto part store
And sprayed and cleaned oil off and let dry for 2 min
Then re-installed them both .... then start car and within 10 seconds engine light despaired boost was back to normal
....The joy i felt was like no other wooooooow
Bryan, if the MAF sensor has problems/it's dirty, it should prompt an error on the iDrive or some other CEL error? I ask you because I have some hesitation on my B48 F30 LCI when accelerating from 1.1K rpms and don't know if I should focus on cleaning the MAF sensor. Thanks for the reply
I have a similar symptom at 1.1K rpm. Curios if you ever figured it out and fixed it?
I was about to clean MAF on my 3rd Gen MINI and your video came up just in time! Thanks!
Can i use electronics cleaner there's no available maf cleaner in the area
Just did mine today after watching your video. It worked. Thanks very much from the UK
I did this on my 435i and man, I feel like I bought a brand new car!! Drives like 0 miles on it.
If i have that orange motor symbol in the cockpit do i need to replace
the sensor with a clompletly new one or is it enough to just clean the
old one?
Buddy, while doing this job I lost one screw while removing one of the two screws of MAF sensor that fell into the engine compartment and was not recovered. Any way I can buy the screw ? Part no?
Any opinions about when to actually replace the MAF sensor? Every 10 years or anything like that? Thanks in advance ☺
Can I use electrical contact cleaner as I can't get hold of the MAF sensor cleaner?
H Singh yea
This guy looks like he plays lacrosse.
Can I clean the MAP sensor too?
Where did you get the thumb driver from?
James Choi its in his description.
Love your channel, bought a m135i a couple of weeks ago so these video's are super helpfull.
Would love more tips and video's on how to keep the car and that lovely n55 engine healthy.
Great, thanks! Great car! Sure, I'll see what I can do..
Nice. Never thought to clean it, especially being so simple to do. Thanks.
Yep, it's great to do on any car!
I had a hard time removing the power connector of the sensor so i threw a towel over the engine bay and cleaned the maf sensor there and let it dry in the sun for 30 mins
Thanks older x3 w 141k on it ..changing oil n air filter...very dirty . Will clean MAS thanks
Brian, So, check engine light came on, I threw a code of P00BD. Had them clear the code, came home and cleaned the sensor just like your video...THANKS. A couple of days later, the check engine light came back on. This time I cleaned both the MAF and the MAP on the charge pipe. If this worked, should the check engine light turn off without being cleared? Any help would be greatly appreciated!!!
Hey I can't seem to find the product you used, but can I use Holts Electrical Contact Cleaner 500ml
Holts Electrical Contact Cleaner 500ml
Removes oil,grease,and dirt
Fast acting , powerful formula
No Residue
360 degree spray action allows aerosol to spray in all positions
Thanks
I hav a w210 Benz but the maf air flow sensor isnt working.help what can I do
Hi Bryan, Is it really effective
I have code p10f0 intake air temp sensor code do you think this might help fix it
Probably a stupid question but is it fine to clean the sensor on a 18 330i?
I want to do the same thing to the MAF on my 335i soon. Do you wipe any excess spray off or do you just let it completely dry?
No, it dries in about 3 seconds, super quick!
could a rough idle be caused by a dirty MAF?
Yes, it could be a factor
what kind of screw driver it is? i really need one for tiny space!
Hi Bryan, I have a 2014 M4, and just recently when I start it up from cold and try to pull off, it starts to splutter and then cuts out (not all the time though) The car has done 41000 miles. It runs fine after the initial start up failure, so I was wondering if dirty maf sensors could be the problem....what do you think?
Have you figured this out ?? I’m having this problem now
@@wavybaker7074 what did your problem end up being? having this rn
check for any vacuum leak. clean maf and throttle body, check your air filter and clean it. if still occur, check your fuel filter and pump.
Having this problem with my f30 after changing intakes 😢
@@pstory8634 fixed it?
Hi can i clean the maf after i driven the car or does engine have to be cold thanks
what about the screws that hold that sensor in place i lost mine where can i get ? please help
Is it safe to spray the connector in the MAF sensor and spray the connectors from the engine lead? Please advise
I thought the MAF for this car was on the charge pipe?
I assume its similar for the 328?
Yes, same basic process for every car
Can i use break cleaner?
I bought a 2005 530i. Popping up codes p16a7
We cleaned maf sensor with break cleaner
After that,
Car still runs very rough. Very little power and sputters. Cant accelerate fast at all.
You destroyed it with brake cleaner
The spot you were really focused on was the iat sensor
Any online link for buying these? I have a 2013 f30 320d there is an engine light with maf error. The car runs fine and no problem with the idle and power. My mechanic checked the wiring plus cleaned the sensor a couple of times but the problem still persist. Thanks in advance love from India :)
Link should be in the description
Should we do this every time the filter is changed?
Hey pal i cleaned the valve intake on my '13 E70 X5 with CRC GDI IVD valve intake and turbo cleaner and after waiting an hour as per the instructions and taking it for a spin on the highway i got a huge grey cloud of smoke and a check engine light! any idea if its the MAF sensor since some of the stuff might have come into contact with it! Gonna try the CRC maf sensor cleaner now i think
The smoke coming from the tailpipe is normal its all the carbon that was being broken down which is a good thing! Clear codes and you will be back in business running better than ever. Just did the same thing on my N55 a lot with a new charge pipe and BMS intake.
I am having exhaust chugging on coasting and braking, so I did this and it was super easy. It didn’t fix my problem though, so I suspect that it might be a partially clogged exhaust. It’s just really weird how it does chug on idle or accelerate.
Have you found a solution to your problem? Mine has been doing the same
Do you need to disconnect the battery?
great video. now do a downpipe video :)
:)
Try see how can clean mine as well rough idle and it shuts odd
How to change mass flow sensor on 2008 BMW 535i
Man you arr so brilliant 👌
Is it essential to use mass air flow cleaner - will brake cleaner suffice?
Too rough.
A very helpful video... thank you ...
My check engine keeps coming up after I put an aftermarket intake on but the car runs fine
I have the same issue. I bought Bluedriver for my M5. I keep getting P00BC error code. I cleared the code, then disconnected the MAF's and the car ran fine. I reconnected the MAF's and will see if the error code returns. I bet it will. For some reason my F10 M5 hates aftermarket air intakes.
David Huether mine does the same thing. Did you find out how to fix it?
Hey Bryan.. Just started to run across your videos in the last few weeks. Appreciative what you're doing!
Awesome, thanks!
Hey Bryan, thanks for the informative video again. I was wondering if this is sufficient enough or do I need to clean throttle body too? Saw they sell CRC product in bundle so I wanted to know. Thank you
Hi, thanks! If you look on the CRC throttle body cleaner, it says not to use it on Turbocharged cars, so I wouldn't use that
Can it give you no throttle response
Sebastien Rosil yes. I ran a car without a MAF, and the throttle response didn’t work after 1.5k RPM if I remember correctly
Hate to be the one asking this but, what's the purpose of that, and does it actually make any noticeable difference?
You'll gain about 35 horsepower ;) Just kidding. Yes, you can notice a smoother idle. My car had a lot of oil in the intercooler, which coated the sensor in oil. It messes up the signal, so your car doesn't know exactly how much fuel it needs to add to compensate for the air flow
how can oil get into the intercooler?
@@NilanWeerasekera from the turbo, or mainly valve cover (hence a oil catch can ).
LIke the addition of the background music!
Thanks! You'll have to teach me how to vlogg one day, ha.
hahaha just keep watching other people's and keep doing what your doing!
Lol. You stay the vlogging champ and I'll stick to DIYs haha
Could i use citrus spray for this?
icepl4net yes I have on my n55
NO
What do you thing about the k&n drop in filter ?
I love them. I run one 😀
(mute point by now, but incase anyone else were to read comments) I use one in my e46. Don't over oil them, that is the mistake people do, as too much oil could then affect or damage the MAF.
Awesome, thanks for showing this.
Sure thing!
Kies Motorsports where is it on the 2013 Bmw 750li ?
Hi Bryan, did you get my email btw? Alan
Just did this, appreciate the vids. I had to watch again
Hi Brian, I have to admit I was skeptical about this video, but it really solved my problem. Thank you for posting this video.
Pablo Herrera what was your problem? Just curious
Pablo Herrera. Same question. What was ur problem? Usually used to skake the engine every time you start it?
thatdronekid torreto his fuel economy was bad most likely
@@latinwords2367 Hi, just came across your comment. My engine shakes every time I start the car and now I got a yellow check engine light. The error code is related to the MAF. Did you clean it and did that fix your problem?
Can I know how to clean it in f30 n47d20
I am also curious about this
I’ve taken my car to BMW and several shops and get a different answer each time.
When I’m at a stop light, foot on the brake my RPM is revving up and down like crazy. Threw some fuel system/injector cleaner from Walmart into it during my last fill up and it didn’t do it for a week.
Then during my next fill up it started doing it again.
Every answer I’ve gotten was the following!
1) Fuel injectors
2) Carbon air filter
3) spark plugs
4) brake flush
Each shop gave a different answer. It’s an 08’ 328i automatic. 102K miles.
Did you fix the problem? Sounds like spark plug gap to big, or vanos need cleaning.
Could be your ignition coils? I have a 2012 and when I changed my spark plugs, I also need to replace the ignition coils as well. My RPMs were doing the same thing. BMWs are awesome when everything is working properly LOL Good luck!
Hi Brian, do you need to disconnect the battery before removing MAF
No just take of the electrical tab clip
Old Brian looks so young