aviators600

I have a 2003 s600 v12 that has oil coming out the tailpipes and smokes alot. Does anyone have an idea what this my be from or what is wrong with my car. Thanks for your time.

MB-Dude

Oil and smoke out the tailpipe(s) are classic signs of one or more blown piston rings and/or one or more badly damaged valve guides/seals. If oil is truly coming out the tailpipe, this has been going on for a while or you had a catastrophic failure that you would have noticed almost immediately. You probably have fouled the cats and the O2 sensors, as well. Not a pretty picture for a V12.

You can easily pull each plug on the V12 and inspect it. That'll tell you which cylinder(s) is/are the culprits. If oil seems to be seeping/oozing from the dipstick tube, you may be pressurizing the crankcase, but that would be highly unlikely.

Good luck,
Jeff

turbocad6

hmmm, in a case like this I would much more suspect a blown turbo seal... that's going to be the most likely cause of your issue. a motor would have to be seriously hurt to be able to expel enough oil for you to actually see it dripping out of the tailpipes, it's much more likely a turbo problem than anything else

turbocad6

just to add, if this was my car, I'm sure enough that it's the turbo(s) from your symptoms that personally I'd start shopping for & even buying a pair of turbos before even taking everything apart, that's how sure I would be in the likely hood of it being the turbo(s) I think... there really isn't much else that could cause what your describing tbh

MB-Dude

Very good point. I had forgotten about the V12 dual turbos introduced in 2003. Guess I was caught in 'old school' mode. I was hesitant about my response as I would have thought engine performance would have been very bad and that that would have been the over-riding complaint. Thanks for the insight.

Cheers,
Jeff

turbocad6

ha, it happens, I'm familiar with the fact that all the 03-06's are twin turbo's because I happen to be drooling for one myself

tusabes

Do you have a warranty? If not go get an extended warranty that covers the engine and turbos. Wait a few months, at least 90 days then file a claim