I have got a slight smoke problem coming from behind the engine and is getting into the car. Have checked the exhaust system and all is ok.

Smoke appears to be coming up from the rear of the rocker cover by the air filter. I think that the smoke is oil related (rather than diesel / exhaust). Looking at the engine I cant see where its coming out of and there's no evidence (that I can see) of oil on the block (either front or back of engine - but hard to see back).

Thought is that either a breather pipe (round the back of the engine) or the rocker gasket is gone (underneath the air filter)

Any ideas please

Many Thanks

Mark