hey, i exactly had the same problem like u. also ,the oil leak position is also the same position with ur car... i went to the dealer, and they told me i had to pay 800 to fix it.. i didnt do it... so how about u ,did u get it fixed? how much u paid and which part do u change? do u just change the gasket or the seal inside ? or u changed the whole oil filter... i am watiiting for ur reply... thanks for reading.
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Originally Posted by e36mmm
Hey guys,
Luckily without any further damage, I have noticed a very small leak of oil on top of the oil filter housing last week when I was topping up my washer fluid. I cleaned the area first thing to not stain the unit with oil marks and to see if it would re-occur. After the clean up and four days after, I took it out today for a 15 minute drive to monitor any sign of leaking. As I arrived back home and let the engine cool down, I popped the bonnet to see if there were any more oil leak coming through and ...... there it was! 
First problem I've come across since I bought it 15 months ago. It appears to be a common problem with all e9x. My dealer quoted me $460 for two hour inspection of the unit! PLUS brand new oil filter housing of about $350+ which will total up to $800+. What a joke!! 
If it is the seal inside that went bad, which I'm hoping it is, I'll consider myself lucky because this piece costs $20-$30 at the dealer. I can not see any leaks on the bottom of the unit nor on any other parts of the engine. I've arranged a bmw specialist to have a look at the leak tomorrow and if it's what he's assuming it to be (oil filter housing seal) it's going to cost me a quarter of what the dealer is quoting including labour. Fingers crossed!
I took this photo right after that short drive of monitoring the leak to show where the oil has leaked from the housing and how much it has leaked. The leak appears to be running from the gap, where two halves of the oil filter housing on top lock into one another and the oil runs towards the area where you see tiny drip of oil. Doesn't run towards anywhere else that I can see.
It's only a little bit of a spill but damn the car's only on 75000 kms and I've heard some owners had to change the seal at even lower kilometres such as 25,000-55,000kms! Such a damn shame! Beware of this problem e9x owners and future buyers.
I'll post updates tomorrow and for the mean time, feel free to share your thoughts on this matter.
Kind Regards,
Boris
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