[Royalty_bimmers]

Have an oil leak but dont know where its coming from. I have a 07 335i sedan n54 with 103k i have never changed the valve cover gasket which im pretty sure its due for but i have a leak under the car near the downpipes and near oil pan. I have changed the oil pan gasket at 80/90k. There was oil on a bolt right next to the downpipes and oil leaks off the downpipe to the floor. Any guesses ? Could it just be the valve cover gasket leaking to the downpipe and that bolt ? Thanks for the help

[Royalty_bimmers]

Also oil level doesnt seem to be going down as i check it on the display

[pits200]

Pics help

[Royalty_bimmers]

Couldn't upload

[TrollToll]

Couldn't help detect oil leak

[Gohan335i7]

My guess would be Oil Pan Gasket again, however, since you haven't done the VCG I would go ahead and do that, also the OFHG if budget allows.. I think you need to use a desktop to upload pictures on this website just so you know .

[Royalty_bimmers]

Okay and i tried putting photos it says a token is missing something like that. Oil filter gasket a diy?

[Needbmwpartzz]

Follow the drip!

[Royalty_bimmers]

I did its leaking from the far end of the valve cover gasket the last bolt near the cowl filters go but leaks all the way down to the down pipes and some bolt thats right next to thw downpipes but dont know if theres another leak down by the downpipes or turbos ?

[AndrewA]

Is your Oil filter housing gasket or oil cooler gasket leaking? If not, it can be Valve Cover Gasket or Rear Main Seal

[beeming]

Originally Posted by Royalty_bimmers

I did its leaking from the far end of the valve cover gasket the last bolt near the cowl filters go but leaks all the way down to the down pipes and some bolt thats right next to thw downpipes but dont know if theres another leak down by the downpipes or turbos ?

Rear main seal? Mines is leaking and I used to go through a quart a month but has since gotten much better. Was quoted about 1.5k to do the job.

[Jeef]

Originally Posted by beeming

Rear main seal? Mines is leaking and I used to go through a quart a month but has since gotten much better. Was quoted about 1.5k to do the job.

From the dealer?

[beeming]

Originally Posted by Jeef

From the dealer?

I got it quote almost 2 years back from dealer and Indy if my recollection is correct dealer was 3k and Indy 1.5k.

[Royalty_bimmers]

I think mines my valve cover gasket which is leaking down to the downpipes ima try that out first never has been changed. Hate the smoke coming out of the engine. I hope its that.