Changing Injector Seals XUD9

Oscarklemo · 2025-10-24 00:16:00

Onto my next project, I'm thinking of changing the injector seals as I can clearly see mine has been or is leaking some.

It probably wouldn't hurt in any case.

But looking at this image, I can see bothe 2 and 4 are seals.

Checking the oe numbers, one seem to be of copper and the other one steel.

Should I change both while I'm at it or is the copper seals enough?

Last edited by Oscarklemo (2025-10-24 00:16:43)

kenbw2 · 2025-10-24 03:18:55

I don't have any experience either way, but surely if you're taking them out you might as well replace both? Looks like from the diagram both seals come with the injector

Oscarklemo · 2025-10-24 07:58:17

Yeah, they seem to do. Tough I havn't found that kit anywhere good online. Should be OE 1980G6

They seals can be bought at autodoc, searching the parts numberg.

2 is OE 198105
4 is OE 198102

It's really no money, being around €1 for the copper ones and €3 for the steel ones.

Also found a fairly good video of someone changing the seals, but seems he only changes the steel one,

https://youtu.be/qd3x_TWpr1M?si=TASF9TMcLFb4pc8R

While I'm at it I think I'll change the fuel return pipes and plug as well.

12 is 127509
13 is 157363

Last edited by Oscarklemo (2025-10-24 08:06:40)

kenbw2 · 2025-10-24 22:07:48

Yea I've had those return pipes perish on various of my vehicles over the years so it's not a bad idea to replace them

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#1 2025-10-24 00:16:00

Changing Injector Seals XUD9

#2 2025-10-24 03:18:55

Re: Changing Injector Seals XUD9

#3 2025-10-24 07:58:17

Re: Changing Injector Seals XUD9

#4 2025-10-24 22:07:48

Re: Changing Injector Seals XUD9

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