Problem solved: Audi A4 Avant (2007-2015) rear wiper motor replacement

Febi's video highlights the problems and the solution

Problem solved: Audi A4 Avant (2007-2015) rear wiper motor replacement

In this video, Febi shows how to test and replace the rear wiper motor on the Audi A4 Avant (B8), manufactured from 2007 to 2015.

Common malfunctions of include the rear wiper not ‘parking’ in place and the rear washer failing to work, resulting in brown water stains being found on the tailgate opening area.

If left unchecked, water can ingress into the spare wheel/battery area from the washer fluid leaking from the wiper motor.

The wiper motor leakage is caused by a blocked rear washer nozzle or pipe, which causes the washer fluid to leak internally into the wiper motor, corroding the internals of the motor mechanism.

The excess fluid leaks from the damaged wiper motor and ‘seeps’ into the spare wheel area, which can affect the battery and battery control module – causing multiple voltage-related faults with other control units if not rectified.

The solution

Check and clean any excess water from the spare wheel area. Remove the rear wiper arm-cap, clean and check the washer nozzle for blockages, remove the rear wiper arm and remove the tailgate’s inner-trim panel.

Disconnect the washer fluid pipe and test its operation to check for blockages. Once satisfied that the rear-washer system is operating correctly, replace the rear wiper motor and clean any brown water stains from the affected trim and metal 

Check the operation of any control modules that could have been affected by any water ingress and repair/replace as necessary. 

For more information, download the technical PDF or visit Febi’s part finder portal.

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