Audi TSB #A261319 2027945-
2009 Audi A4
Affected Component: ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
- Supersedes Technical Service Bulletin Group 26 number 13-18 dated May 22, 2013. Humming or metallic rattling noise from under the vehicle, heard most consistently during engine idle or slow acceleration. Initial inspection indicates that the noise is coming from the exhaust system. Relative movements in the rear mounting of the exhaust system (rear silencer).