Im pretty sure the pump is faulty as they already had ordered in the new pump but they didnt want to install today as they were concered about the black oil sludge ruining a new pump. They emptied all the oil out and cleaned as much as they could around the filter etc and advised to run 500miles...
Thank you for your help Hamza_Irfan
The car has done 37000 miles, I bought the car from main dealer just over a year ago, they said they changed the haldex oil back then but obviously I cant prove this, this time I took my car to independent audi workshop.
Do you think when I come to change...
A3 2.0 tdi 185 2014
Hi all, just had my car into the audi garage because there was a fault code on the haldex pump not working correctly which made the front wheels spin and not engage the 4wd.
On removing the pump the techs found that the oil was very thick and sludge like, the pump itself...
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