1998 Mercedes Benz S420 AM radio static

1998 MERCEDES BENZ S420
160,000 MILES • V8 • 2WD • AUTOMATIC
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TMEFF
  • MEMBER
  • 1 POST
My car radio works in all modes except AM. In am I getting a lot of static, although I can hear the station in the background. The static is in direct relationship with the engine rpms. When the car is off the am radio comes in perfectly. Is there a fix for this problem.
May 15, 2008 at 2:19 PM
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MHPAUTOS
  • CAR REPAIR CONTRIBUTOR
  • 31,937 POSTS
Hi there, i would have all the earth's checked, including the antenna. Ask you dealer about radio suppressors for the alternator, as this is a major cause of interference.

mark (mhpautos)
May 15, 2008 at 5:46 PM
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