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Re: 164 Q4 ABS problem (warning light on)

PostPosted: Sun Feb 18, 2018 8:05 pm
by Alfan
I went for a short test drive in the Q4 yesterday and the ABS error code reappears after being erased. I will probably try and put the other unit back in later, to see what that will bring.

I took photos of the error codes from the Marelli tester.

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ABS error 1

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ABS error 2

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ABS error 3

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ABS error 4

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ABS error 5

Re: 164 Q4 ABS problem (warning light on)

PostPosted: Tue Feb 27, 2018 4:02 pm
by Alfamuppet
Looks like the front right and rear left solenoid valves have a problem ? These would be part of the ABS unit probably controlled by relays

Re: 164 Q4 ABS problem (warning light on)

PostPosted: Mon Mar 05, 2018 3:58 pm
by Alfan
As mentioned earlier, I have had the welded relays replaced - before that it gave *pump motor' failure. I think this is a problem within the mechanical unit, so I will try and replace that with another one and see what comes out of that.