air hissing noise from brake area

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clk320-

Member
Joined
Oct 26, 2016
Messages
41
Car
CLK320 2003
Hi there,

I have a clk 2003 and there is an air hissing noise near the pedal area occasionally when driving. When I press down the brake pedal the noise stops. Anyone have any idea what this is?
Cheers
 
maybe it is not air hissing. how are your brakes does they work fine???
 
Check for air (vacuum) leak at your servo. Simple to see/ check. Should have reduced braking though if there's any significant leakage.

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The brakes seem to work well, although first clk so not sure how good they should be


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I don't know if I need a new servo but I've been told they cost around £700?


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Loads available in scrapper yards. Speak to a good indy. Not a big job to swap, technically. More a PITA.

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