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May 28, 2021 Service bulletin

This bulletin contains instructions for resolving a coolant leak.

Audi technical service bulletin A1921182061604_4 for 2007-2016 Audi A4, 2012-2015 Audi A6 and 2011-2017 Audi Q5 and others.

Bulletin number
A1921182061604_4
Component
Electrical system
Summary
This bulletin contains instructions for resolving a coolant leak.

Owners of these vehicles have filed 154 complaints in the electrical category.

Vehicles covered

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