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BackintheFold · 07-09-21, 09:13 PM

Thanks-but it is not under the rear seat-although Phil Payne site says it is.

There is a different electronic unit there with only two wires which I think is the acceleration sensor.
Black/blue
Black/green

I Wonder if he meant under the car, under the seat. I am not certain I understand the mechanics of the MB diff lock. I cannot glean much from the literature!

Maybe Friday will bring enlightenment, but any clues welcomed.

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07-09-21, 09:13 PM	#3
BackintheFold Senior Member Classic Audi Club Member Join Date: Feb 2019 Location: Near an MB ur Quattro Posts: 1,171	J178 relay for diff lock. MB quattro Thanks-but it is not under the rear seat-although Phil Payne site says it is. There is a different electronic unit there with only two wires which I think is the acceleration sensor. Black/blue Black/green I Wonder if he meant under the car, under the seat. I am not certain I understand the mechanics of the MB diff lock. I cannot glean much from the literature! Maybe Friday will bring enlightenment, but any clues welcomed. Sent from my iPhone using Tapatalk __________________ 2006 A3 (daily drive) 1987 MB ur Last edited by BackintheFold; 07-09-21 at 09:19 PM.