Thread: Smoking is ? bad for you

It sounds as though your engine hasn't had the updated secondary turbo drain fitted. The original drain retains oil after the engine has stopped because its scavenger pump stops which causes oil to eventually seep through the turbo seals (which were never designed to prevent such seepage) into the air inlet tract. When you occasionally give it a boot-full the secondary turbo opens so empties the pool through the engine. Either give it a boot-full more often or have the turbo drain replaced with the later design that goes directly to the sump rather than to the scavenger pump.

Edit: The same problem existed with the 4.4 TDV8 in the RR. Because the 4.4 needs a hole drilled and tapped into the side of the sump to fit its updated drain, some people regularly give the engine a burst rather than have the hole drilled. I fitted the new drain to my 3.0 TDV6 D4 but had the dealer fit the 4.4's because its a much bigger job.

I had the same white cloud of smoke occasionally, got the turbo drain fix done last week and no more smoke!
Cheers
Scott.