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It's normal. The housings are cast iron and will rust no matter what. My car was pristine when it arrived and had rust on the turbos as well. Drive it and enjoy it.
I've had three cars with the 4.0 TT and have never seen that. You guys must live in a humid climate. I'm right outside of Las Vegas. So very dry.
This is correct !
The hot end cast iron part of turbo assemblies will all end up with a corroded surface like that if your car is rarely driven, in humid/high condensation or corrosive (close to the ocean) environments.
I own several turbo charged cars of different makes, including the twin turbo diesel C204, none of mine have corroded hot ends like that because of the lack of the above conditions.
Pretty normal. If you don't like it take off your turbine housings and get them ceramic coated.
As for a dealership replacing turbos under warranty for this, I highly doubt MB paid out for it.
Not was I was told by the dealer, they said that after a lot of discussion with MB they paid fully for new turbos, there’s absolutely no way the dealer would pay the thousands it cost, I spoke to the mechanic who fitted them and he confirmed it.
That's pretty crazy that MB paid out. Me, personally, I wouldn't have worried about it. If I did anything I'd take the turbos out, remove the turbine housing and ceramic coat them a cool color and pick up a few HP
That's pretty crazy that MB paid out. Me, personally, I wouldn't have worried about it. If I did anything I'd take the turbos out, remove the turbine housing and ceramic coat them a cool color and pick up a few HP
I wasn’t particularly worried about it and I could possibly have cleaned most of the rust off myself, it was a matter of principle, a new car shouldn’t have gone through the PDI and this not noticed and attended to before I picked it up.
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