Discussion Starter · #1 ·
I have a 2001 W220 (S500) with 80k miles on the clock and all was fine until a couple of weeks ago. Firstly, I noticed that the front door-mounted speakers were not working - they have since worked intermittently. Then I noticed that when I pressed the brake pedal, I could hear a small crack in the rear speakers - similar to if a switch was broken without being surpressed. Since then, the problem has grown into an engine speed related whirr/buzz in the speakers which is there whether the radio is on or off. The problem seems to disappear after a couple of miles or when the car is warm. Any ideas please?