Hi All

 

It looks as if I have an oil leak where the air intake from the airbox disappears behind the rear of the engine. The top hard plastic tube connects to a rubber connector behind the engine. I've attached some photos but access is very tight and its impossible to see any splits etc in the tubes. I also had a fault code 000369 fuel trim bank 1 system too lean about a month ago when I did a longer journey, I reset the fault and it did not return, there is no rough running at any speeds but it does look as if the inlet tubing might have a small split somewhere, car has done 65k miles. I wonder if this is a common issue that someone may know about who could pinpoint the offending part and whats required to swap it out.

Any advice appreciated?

I'm wondering if this could be the PCV, I replaced the pipe and rubber to the turbo but TBH the old one one looked OK. During a test drive shortly afterwards the car started running rough on idle with the the CEL flickering on and off, which cleared itself after giving it a boot down the road, put my cheapy diagnostic tool on after and it said misfire on cyl 4. I had the PCV off and it all looks ok underneath with the orange valve moving ok, but the symptons do relate to a you tube video from Deutshe auto parts?

 

I see Febi Bilstein do a replacement PCV which is alot cheaper than the dealer part, can anyone vouch for this part, Febi are usually pretty good quality in my experience

 

Many thanks