anyone come across this noise before

Alex Crow

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Your Mercedes
W169, W124, w202, W203, KTM 250 EXC, VW T25 camper and a Polo in a pear tree
not big on the vans, but if you have a damper mounted on the polybelt tensioner, wedge a screwdriver in either end and let us know what happens.
 

television

Always remembered RIP
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Daventry
Your Mercedes
2002 SL500, 216 CL500, all fully loaded
not big on the vans, but if you have a damper mounted on the polybelt tensioner, wedge a screwdriver in either end and let us know what happens.

I would say that this man is spot on again :D:D:D
 

Xtractorfan

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Your Mercedes
S class
You certainly have the squeal of a duff bearing..idler pulley as said and also what sounds like the chuff, chuff of a blowing injector.. off to listen again !!
 

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