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Old 08-01-2002, 01:10 PM
benz320 benz320 is offline
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Join Date: Jul 2002
Posts: 57
I also hear a humming / screetching sound from the rear of the car, under the back seat, only when the engine is on. Its not constant, but continuously intermittent. Is it the fuel pump - will it give me any notice before failing (like the noise getting louder)? Also, I think (not sure) that the noise is more on hotter days. Its a 190E (87).
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