2018+ W12 oil leak

Author
Discussion

matrignano

Original Poster:

4,609 posts

217 months

Tuesday 14th November 2023
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Hello, my car is in for an oil leak fix, fortunately under warranty.

I haven't gleaned much clarity yet on the cause of the leak, but the dealer says they will have to replace several parts.

Anyone have any idea what it might be?

Sunnysidebb

1,373 posts

174 months

Thursday 16th November 2023
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Unfortunately not. But I am interested in what the problem is for future reference .
Please post outcome once the repair has been done .

mutske

70 posts

185 months

Wednesday 22nd November 2023
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HI, how did you get on with the repairs / what was the issue?

matrignano

Original Poster:

4,609 posts

217 months

Wednesday 22nd November 2023
quotequote all
It's getting fixed as we speak under warranty.

My service adviser does not seem to be very technically minded, the best I got out of them is that "one silicon seal in-between the engine bed plate where the leak seems to be coming from".

I'll ask for the technician's report once the car is fixed.

ChocolateFrog

28,623 posts

180 months

Wednesday 22nd November 2023
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Sounds like something that would be very expensive outside of the warranty.

Those engines always look an absolute nightmare to work on and I've done a few jobs on the v10 diesel in Touareg's.

matrignano

Original Poster:

4,609 posts

217 months

Wednesday 22nd November 2023
quotequote all
Sounds like there aren't many parts that need replacing and not expensive ones either, but a lot of the engine ancillaries need to be removed to gain excess, hence probably several hours of expensive Bentley labour rates...

matrignano

Original Poster:

4,609 posts

217 months

Thursday 30th November 2023
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Getting my car back next week, it's been off the road for a little over a month!

I pushed for a full technician's report but the below is the best I got, and I can't be bothered anymore...
"1. Removed engine and gearbox due to oil leak from engine bed plate. Stripped engine to gain access and confirmed two O-rings distorted causing oil leak. Cleaned area, fitted new O-rings . Reassembled engine using new seals and stretch bolts. Re torqued to manufactures specification. Refitted engine and gearbox to the Bentley. Carried out extended road test and checked again for any leaks. All ok. "

I'm glad the car is still covered by Bentley Warranty as it sounds like it would have been a massively expensive job, engine out and engine open!!