Here is a real puzzle - buzzing at 70mph that stops on windscreen wash

Bobmacd1

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Your Mercedes
E Class/2000/2200
My 2000 E class has developed a buzzing noise in the front drivers side upper dashboard area. It sounds like big angry bee. It starts at 70 mph or less if in a headwind. It stops when I wash the screen and stays stopped for say 30 minutes. I have checked and I dont have a hive in the engine!! So - what starts at 70 and stops when wet? Its a puzzle and I would really appreciate any pointers to the solution.
 
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whitenemesis

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Your Mercedes
CLS55 AMG '05
Something trapped around the wiper mechanism?
 

_Taz_

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Your Mercedes
2011 E63 6.3NA AMG Tenorite Estate MCT 7g
hmm....

sounds like you may have a loose windscreen seal / bond / an air gap, as the washer fluid seems to temporarily seal it ??

Have you checked when using the washers ( with the car stationary ! :rolleyes: )

that there are NO leaks inside the car ? Maybe hard, as the water will have to drip down the back of the dashboard....

Else, it could be a perished wiper blade, if you swap them over, does the noise transfer to the other side ?? quick way to check !

:D
 

horgantrevor

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E220 CDI avantgarde c43//amg
have you had the windscreen changed lately
lift the bonnet and have a look for loose trim
i would also change wiper blades
 

wireman

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nice 201 2.5D 1993 & very nice 129 SL500 1994
Wiper blade or weak arm spring, the wind may be making the blade behave like an organ/oboe/clarinet/squezze box/saxophone etc reed.

A twisted/bent wiper arm can also be the culprit.
 

horgantrevor

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if i remember in a top gear episode clarkson was driving a ferrari and at 70 mph he had a bussing that drove him mad on the trip

it turned out to be a bent wiper arm or blade
 
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