320 clk Exhaust/pulley Whistling

[Charlie]

I have a 1999 320 clk. during acceleration there is a very irritating whistle,the lower the refs when accelerating the more annoying.It sounds like an exhaust or belt whistle,i have had it checked ,no leaks etc.Mercedes dealer says it is inherant to that model ?
Any ideas please or answers

 

[sasha320]

Same problem, same car

Interested to see other posts on the matter...

Sashaaaa