C. O. Guy2

there are quite a few high mileage S4s with orig turbos some even chipped...

C. O. Guy2

mine wont fail as i dont abuse them! 8^)

DAP@EPL

And there are quite a few well taken care of cars that have had turbos fail.

S4mig@PEB tuning

Not something that makes you look like a total tool. But you do a good job at that with every post.

Imolavirus@BuehnEngineering

If you search, you will find some threads about the passenger oil feed line and its bad design. That combined with the earlier K03's having a smaller oil feed hole in the bearing housing are not a good mix.

Also, user error accounts for many turbo failures. Not changing your oil regularly, inproper warmups/cooldowns.

We've also seen some fins the K03's turbine wheel "break" off, this will for sure take the turbocharger out. Also, other problems in the engine can contaminate the oil and take the bearings out in the turbo.

Oh, and subjecting those little guys to high boost levels can spin them to rpm's that....well.....aren't going to do them any good.

did i miss anything?

AntiSocial

There are quite a few S4's with poser Porsche wheels.

C. O. Guy2

mods mods! he called me a "tool" what ever that means (guess you know a lot of STUFF huh)

Imolavirus@BuehnEngineering

and the passenger side oil inlet line's design sucks

SlowestS4Here

ding ding ding.....apparently CO guy plugs his ears and sings "LA LA LA LA LA" when hearing this.

C. O. Guy2

yep the pass side turbo inlet is a poor design at best...they could have done a much better job there. the bearing housing inlet is a tough one to call---I think there is a fine line drawn regarding proper oiling and coking obviously could cause an inlet port to become restricted---thats why I dont use dino oil as mobil one "ashes" instead of cokes and the ash will re-assimilate into the oil.