BMW E92 M3 - Bare Metal Underside Restoration
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- เผยแพร่เมื่อ 22 ต.ค. 2024
- @RedishMotorsportbmw show the process of a 2011 BMW E92 M3 having our Bare Metal Underside Restoration. This E92 M3 had 40,000 miles and was bought brand new by this owner.
He'd notice corrosion starting to form on certain parts of the Underside of the Chassis and was concerned.
Seeing as he'd bought this car brand new he knew every inch of the M3 and how it had been treated and stored and driven.
So even with his excellently particular treatment of the E92 M3, it was still suffering from Underside Rust growing (which they all seems to have in varying degrees).
After a quick Google search, he found us at @RedishMotorsportbmw and started watching our TH-cam Channel here which contained lots of informative and detailed videos on Underside Restorations and he was very impressed with our working standards (his words).
So the car was booked in for the works to be carried out and over the course of around 2 weeks this video was filmed in sections.
This shows how we first assess the vehicles when it arrives, then strip down, then degrease, then assess once more.
Then we move on to the long task of rust removal, and also microscopic corrosion removal (which was everywhere!) which was forming under the factory-applied E-coat!
We bare metalled a huge part of the underside of the care - a serious amount of work went into this - days in fact.
Then a chemical treatment process of the bare metal could be carried out to naturalise the rust and also coat the bare metal in a zinc phosphate coating to help promote adhesion for the next layer of protection.
Moving onto the paint protection stage we used our tried and tested process of Etch Primer, High Build Primer, Sprayable Seam Sealer, and Top Coat Colouring.
Once this had fully cured overnight we could then inject the cavities accurately with a Cavity Wax to make sure the internal sections were protected too.
It goes without saying that this car now has far better protection than when it left the factory, and therefore highly likely to not corrode again.
We can cater for any size of Underside Restoration from 'Rear End' work much like this, right up to entire Front-to-Rear Underside Restorations like our video examples here:
• BMW E46 M3 CSL - Under...
We can work on any age of BMW and are starting to get brought classic BMW's as people are appreciating our attention to detail.
Even if you have a nice F80 F82 F83 M3 and would like some basic protection to STOP rust happening then please get in touch with us on the links below and we'll be happy to help you.
If you enjoyed this video please LIKE it.
Also, please Subscribe to our TH-cam channel!
www.redish-motorsport.com
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Corrosion = war 😆 ... work done by a perfectionist , it’s better than factory ! Perfect job 👌🏻
Would love to have guys like that here in my country
Are you guys classed as an official BMW partner? Like can you guys carry out warranty work or just able to maintain warranty through servicing? From working in the dealerships for years i still love the attention to detail and it would be nice for BMW to recognise the dedication and quality of craftsmanship you guys have
Amazing company you work at, love the attention to detail and thought to all your underside restorations. Great work.
Very satisfying watch guys
Great stuff but I suggest you don’t grind the metal down where it’s pitted, but use a spot sandblaster, use one with the brushes on the end and it stops the glass beads flying everywhere. Most of them have a bag to catch the recycled sand off. I’ve found this to be the best rest removal method on pitted areas.
I didn't catch what you finally did with rear axle mounting area with deep corrosion?
You found a new target audience after restoration of all E46 :)
Why do you guys use etch primer instead of a zinc primer which stops rust even more? Thanks
Is there anyone in the USA who does Audi restorations to this level of perfection? I love these videos.
I'm interested too.
convenience collision in PA, AMS in NJ, and 2M auto works in CA
@@zkramez thanks for the tips!
I wonder if you have tested the Por15 metal prep without any top coating to see how well it protects the metal when it's exposed to to the elements over time? I guess the product is the equivalent to Dinitrol RC900 which uses a rust converter and epoxy resin instead?
having used por15 before, if i remember correctly it will break down over time when exposed to UV. Which is why it needs top coated for best protection long term.
Is it just BMW that e-coat subframes and suspension components or is that something most OEM's do? Thanks for your time.
Why are you using etch primer instead of epoxy primer? Isn’t epoxy a much better sealer?
I am an epoxy primer fan myself. I wondered this too, it could be for the acid in the self etch to remove any further contaminates. or it may be use as per por15 metal prep's directions. None the less I am curious. I am going to be doing a very similar project myself
Does your undercoating cure hard or is it rubberized? I've had issues with Raptor Liner cracking when it's applied over soft seam sealers because it cures hard. I've also had the same issue when primering over seam sealer like you guys did in this video.
So how much about would it be to do this sort of job on a brand new car vs one that has corrosion?
how much do you charge for underside job like this? i have e92 335i that I would need to get whole back end refurbed, but dont know the cost for the labour?
Silly question. Can you put E92 M3 rear subframe to regular E90?
Can you not use stainless steel bolts ?, I changed all mine on a motorbike years ago
Worth looking at Lanolin based products instead of the clear wax mentioned here….Blaster surface shield in the US or Lanoguard in the UK
I can only imagine how much all that cost. 🤑 Best treatment for the bolts would be to get them zinced.
What Sprayable sealer do you use it looks nice
can you do a good review of welding equipment, that is required for those jobs?
Which wax do you use? I want to do my brakelines with it now there prestine? Thanks
Where can i find that coating? Or something similar? Amazing work mate
@Redish Motorsport Can you tell me the name of the sprayable seam sealer and transparent wax that you use. They look fantastic, I am just about to complete my under body.
What is better, POR15 or epoxy/etch primers?
2 components Epoxy is the best.
Please provide me exact product you used on metal to neutralize a rust, thank you!
Por 15 metal prep
@@ayrtonthompson750 so they use pro15 metal prep and then primer on it ? or they use por15 metal prep then por15 paint? do u know ? its possible to use por15 metal prep for other things like epoxy or ?
You guys are doing this to my mate Steve m3
You had to put on this thich, black anti-gravel stuff on top of all your coatings, before vax. It is a must have for car underbody protection against rocks. It might doesn't look as good and clean, but why does it matter if it's under the car? Not everything thats old fashion is bad. Golf 2 was all coated with anti-gravel and some still have no rust underneath the car till this day! Other than that great job! Cheers and Keep up the good work!
I have also seen plenty of VWs with that same coating look great, but it comes off in sheets and has had water sitting between the coating and the metal. Scrapped 3 because of exactly that issue!
@@Decrepit_biker What you have seen was someone doing cheap and wrong aftermarket anti-gravel coating on a dirty, unprepared surface, that's why it's falling off. You should never put this stuff over the rust or unprepared surface, otherwise it will make the metal rust even faster.
@@sigzum1963 no this was the factory coating. Mk4 golfs seemed to be particularly prone to the issue. The sills or floor would look fine, but the rot was happening behind it by the time you discovered the rot it was really bad, because the outer coating held its shape even when the metal was all but disintegrated. Didn't seem to aflict all cars for what ever reason.
@@Decrepit_biker hmm. that might be becouse it rusted from the otherside- the inside frame. If the car was driving in coutry where they put salt on the road, than those inside frames needs to be washed and inside sprayed with vax every season. if not than it will start rust from inside and the rust will be unstoppable if you skip this annual treatment. other than that it is impossible for water to penatrate throught anti gravel coating for decades.
@@sigzum1963 nope was the flat floor that killed my last golf. When I punctured the coating water poured out. A lot of water, and the metal was very rusty and thin. When I took the carpets out to look at welding, the paint on the inside of the floor was unbroken. Was definitely due to the coating spreading from the floor and creating a water trap, once it did water found its way in and that was it. At other times on other cars I could peal the coating off in sheets inches square, before the water got underneath and the metal was clean. Absolutely the coating unbonding from the metal. Worst thing was it hid the damage so well, that it could be really bad before it was noticable. Was very difficult to tell the coating was loose until it was really bad either.
I aspire to get the underside of my E46 as good as a reddish build! Outstanding work.
Do you guys sell the fuel tank brackets for the e46?
Darren Boston I mean the actual brackets, front and rear which the tank straps connect to. I believe they come only with the RACP assembly
You finished sanding yet ? 😂
Is the rust due to living in the midwest or east coast?
Salted UK roads.
It was a Friday car :D
I would like to bring my 5er for this service
Did the owner drive the car in snow or rain?
I would think so, very difficult not too in the UK
How long it takes to you to do this job?
Nice
nice Background music ;)
Turn it off. Not only is it shit, but annoying.
And it's only a 10 year old car. Crazy
Salted roads suck, dumbest thing we do to roads and unnecessary.
why not vaperblast the aluminium parts? and then coat them with wax
amazing o.O
I would guess that missed weld would have been done by robot, a little bit out on settings.
Or out of spec part most likely. Anyway some needs to an eye in their hand so to speak.
Cost of this process?
Dare I ask how much this cost?!
ive been looking at buying a 135 bmw or maybe a 130i this has put me right off , dont bmw bother with rust protection , thats not in a good state for a car thats not that old.. im sure it will be when your finished though .
Normal for a UK car.
@@laurieh not Audi its not. my 2002 allroad is cleaner underneath than ontop ,,, few spots on the subframe , but body and the rest is like it was the day it left the factory ,, and its not pampered at all,,,,, having said that I spent last week fixing a pair of jack points on a 2008 range rover that you could put your fist through ,,, repair and painting was about the same value as the car ,,, the worlds gone mad.
It doesnt matter which car are you getting, it depends in which coutry you live. If you live in a coutry where there are no snow and noones putting salt on the road, than you shouldn't worry.
@@tomthompson7400 Where abouts in the country are you? I have a 10yo volvo which is mint underneath but lived in south of England all its life.
@@laurieh northern ireland here , ive no idea what they put on the roads , but its not easy on cars , and everywhere is close to the sea ,, Im a diver too , and sail a lot , which maybe does not help either.
Frankly if the owner is that meticulous I'm surprised they didn't just sandblast + powdercoat the original rear subframe, rather than spending big $$$ on a new one. Powdercoating the original one would've been significantly cheaper and more durable
The original one was badly corroded, and potentially compromised. Sandblasting the interior surfaces would have been sub-optimal. It would also have needed all bushes to be removed for powder-coating to be done successfully. BMW supplied a new subframe with new bushes, free of charge. No corrosion to fix, and interior/exterior ready for effective corrosion protection to be applied.
The quality of the metal, and Ecoat is deplorable! For a car that is so highly strung, this kind of trouble in the preservation should be studied by the BMW people.
To me this stems from moisture contaminated paint, and cheap recycled metal!!!
Something that dose NOT BELONG in the BMW catalogue never mind the M Sport devision!
This along with the shell bearing issue is more than enough to put future collectors of these machines!
It's the UK. Every car is like this if not worse.
@@Chickendinner2024 I’ve had 80s and 90s BMW’s and mercedes. And this kind of corrosion was absent from all of them. This has to be due to the lack of quality control. As we know Mercedes suffered badly from corrosion in the mid 90s to the mid 2000nd’s and this was down to removal of funds from quality control. Thanks to the Then newly acquired American partnership. And clearly has happened here. As the narrator tells that BMW stopped putting anti corrosion paint on these vital areas! Hence this shocking level of corrosion for the age of the car.
Nice jobs and love the meticulous attention to detail. But at around 57:00 you show rust stains on painted plastics and state you don’t do paint .
As a good will gesture and simply out of common sense half an hour of free labour would be nothing.
That’s unless the panel was going to be painted after . Then I’ll let you off
You really have issues with your microphone.
th-cam.com/video/GsoETrDOPYg/w-d-xo.html looks like BMW designed the exhausts to be close enough to warm up the diff oil!
WHY DO YOU INSIST ON BLASTING THAT BLOOODY MUSIC in the background in every video.... SHUT THAT THING UP for 10 mins, got a freaking headache 7 mins through the video..... Jeeeez. (destroyed an otherwise great informative video)
1:00:34........funny..... genuine BMW bolts.....do they really make these...LOL. I bet the poor old punter paid £5 each for them the poor sod.
Dazzlers Channel You would lose your bet....
9:30 jesus @bmw really?
Is it just that BMW make crappy cars and use poor materials or is it simply gonna happen on any car in the UK? We don’t normally see this in the USA on higher end cars(?)….
bmw is no more a quality car, they use cheap weak metal in areas of heavy stress!!!! e46 z3 z4 e92....(z8 - 200.000 dollar car)....etc......i am realy disapointed whith they lies, ading to this chep plastic engine parts with nown issues in most models with no correction to creapy errors, very expensive, difficult access.....i was a biemmer fan, but now.......pffffff bmWaste......
Don't be mad on BMW, be mad at the whole automotive industry becouse everybodys now doing this bs.
@@sigzum1963 Thanks i agree!! good luck!!