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E46 (1999 - 2006)
The fourth generation 3 Series (E46 chassis) was introduced in 1999 and set the standard for engineering and performance during it's years of production including being named to Car & Driver's 10 best list every one of those years! ! -- View the E46 Wiki

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Old 09-21-2012, 10:13 PM
kskane's Avatar
kskane kskane is offline
From DownUnder
Location: Australia
Join Date: Oct 2009
Posts: 1,089
Mein Auto: '04 525i M54 with 6HP19Z
M54 Engine Oil Leak

Guys, I have M54 engine in my E60 and it has a leak which is very annoying since I am loosing 500ml about every 2-3 weeks. Here are some pictures of where I can see the oil.

1. First - There is oil getting accumulated in a puddle around the 1st and 2nd spark plug start from driver side.
2. Second - There few drops of oil between wiping it clean around 4pm and 12pm next day morning. The picture is of the bottom front left corner straight under the vanos areas.
3. Third - there is slight leak under the cover of vanos, but also the two electrical connector on the left of vanos appear to be leaking oil. Can this oil leak slip down to the second pic.

Which part is leaking that I need to fix is what I need to know considering the pictures. Is it the cylinder head gasket that is gone? Or something else.

Any suggestions are welcome.
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