Q7 4L Rear Main Seal

[jolio1994]

Good evening everybody,

Just picked up this very clean Q7 3.0T and have been eyeballin' oil seepage between the engine/transmission matting surfaces. Suspecting it to be the rear main seal all the engine pulls I've seen have the vehicle lifted off the subframe to repair.

I unfortunately don't have that capacity; if engine removal possible with the removal of the front clip?

It doesnt look to be time sensitive, but would like to know for when I get that one free weekend.

[a4lownslow]

Chances are it’s not the rear main seal. Take a look at the oil filter housing seal. Where the housing bolts to the block. It’s a $15 dollar part. You can use a telescoping mirror from up top to verify. When they leak, they can leak bad. With the cold weather here in Minnesota I’ve done three of these jobs in the past month. Oil runs down the sides of the transmission and makes its way in between engine transmission presenting as a rear main.


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[jolio1994]

I just knocked out the brittle as a rock valve cover gaskets. 183,xxx and I'm confident they've never been done.

Plan is this week to Reseal the timing covers on the head and I will order the oil filter housings gaskets.
Chances are the cars due for a carbon cleaning as well so I'll add it to another "While I'm in there" job.

Thanks for the info, as far as maintenance stuff goes it seems to be all the regular V10 stuff, but in a smaller harder to work on package lol