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Leon 1.6 tdi Oil leak

Mar 21, 2024
10
0
Hi all.

So I have a leak coming from my oil feed that was fixed after my turbo was replaced. There now seems to be oil building on this bolt in the image. I’ve cleaned the bolt drove it 5 minutes and checked again and again there is some oil on that area indicating there is still a small leak.

Can anybody tell me what bolt this is and will this bolt need replacing or tightening up? Or is it a sign of the gasket failing as I believe this is the oil return bolt

Please help as this thing is driving me crazy and I’ve already thrown so much money at this.
 

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SuperV8

Active Member
May 30, 2019
1,544
685
From my image in your other post - this pipe is number 14.
This is your oil drain I believe. Should be a seal on both ends.
I think the bolt from your photo is 17?

1711460111373.png
 

SuperV8

Active Member
May 30, 2019
1,544
685
The seal - number 16 is 03L145757G
Wouldn't think you would need a new bolt? but the part number is N90592705 M6X16

There is an o-ring (number 15) on the other end of this pipe. If it was me - while you're 'in there' I would also replace this as a precaution as by the sounds of it your other 'mechanic' wouldn't have! o-ring = 1H0919371
 
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