Humming or metallic rattling noise from under the vehicle, heard most consistently during engine idle or...
Audi technical service bulletin 26 13 18 2027945 for 2009-2014 Audi A4, 2008-2014 Audi A5 and 2010-2014 Audi A5 Cabriolet.
- Bulletin number
- 26 13 18 2027945
- Component
- Engine and engine cooling
- Summary
- 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).
Owners of these vehicles have filed 196 complaints in the engine category.
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