Audi Coupe Quattro - changing differential oil.

[nickyd100]

Recently serviced my car, wanted to replace gearbox and diff oil.

Could I get the differential drain plug undone? No chance, tried a ratchet, breaker bar, breaker bar with scaffolding pole for extra leverage! Bloody thing would NOT budge.

More worringly I removed the fill up plug and dipped my finger in to see how much / quality of oil in the diff and it was very sticky and cloudy! I dont think it has been changed in a while, so I am now even more anxious to get it changed!

Anyone had similar problems? Any suggestions for removing the drain plug? I dont really want to have it drilled out unless absolutely necessary. I was thinking perhaps using an oxy torch to heat the casing which may help relase the plug.

Thanks for any advice that may be forthcoming!

[Vee]

Are you talking about the Haldex oil & filter ?
If so, you have the special tool ?

[nickyd100]

The rear diff which drives the two rear wheels, the drain plug requires a star shaped tool to undo it which my mechanic friend has. I dont believe there is a filter for the oil on the diff.

[Yertis]

Vee said:

Are you talking about the Haldex oil & filter ?
If so, you have the special tool ?

If I understand correctly he's talking about a proper quattro, not a haldex equipped car.

[Vee]

Yertis said:

Vee said:

Are you talking about the Haldex oil & filter ?
If so, you have the special tool ?

If I understand correctly he's talking about a proper quattro, not a haldex equipped car.

Yep, me getting the wrong end of the stick - wouldn't be the first time !

Edited by Vee on Sunday 10th December 19:44

[nickyd100]

Now we've established the car can anyone help?!? Thanks!

[Yertis]

No.

Try www.quattroforum.com

Friendly lot.

[S2AVANT]

Warm it up and get a bigger breaker bar.
It never gets changed.