Audio/Interior - Speaker Hum/Buzz/Crackle/Rattle
91 08 272018187/1
July 14, 2008
Vehicle Information
Sound system: interference
Condition
Cracking, grinding, rattling, humming or similar noises from one or more loudspeakers.
Technical Background
Parts of the interior fittings such as door covers, rear shelf, facings or covers can be made to vibrate at certain frequencies and then cause noises. It is possible that loudspeaker brackets, cables or covers can be made to vibrate.
Production Solution
Service
1. Listen to the loudspeakers when disassembled. If the sound is OK, then do not replace the loudspeaker.
2. Check if the noises come from parts of the cabin fittings. Loose parts should be fixed, an underlay applied, or, if necessary, replaced.
Warranty
Parts that are replaced unnecessarily will be charged back.
When taking measures to eliminate rattling noises from coverings and fittings, please use the service number of the relevant parts.
Additional Information
All parts and service references provided in this TSB are subject to change and/or removal. Always check with your Parts Department and service manuals for the latest information.