Supersedes Technical Service Bulletin Group 40 number 14-39 dated February 13, 2014
Audi technical service bulletin A401442 2035854- for 2009-2010 Audi A4, 2009-2015 Audi Q5 and 2008-2015 Audi A5 and others.
- Bulletin number
- A401442 2035854-
- Component
- Service brakes, hydraulic
- Summary
- Supersedes Technical Service Bulletin Group 40 number 14-39 dated February 13, 2014. A rattling or knocking noise is heard when the car is driven over bumps or uneven road surfaces. This noise is heard after the car has been driven for a while and is warmed up, and when the temperature outside is warm. This condition can be duplicated if the brakes are applied while the car is being driven over bumpy roads. This condition is a comfort concern. Vehicle handling is not affected. This bulletin applies only to vehicles equipped with 75mm hydro-bushings. This bulletin does not apply to vehicles equipped with 65mm bushings. High ambient temperatures at the hydraulic guide links cause the noise.
Owners of these vehicles have filed 30 complaints in the brakes category.
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