W209 CLK 320 Is your's quiet?

[drbsheffield]

I have noticed that I can hear a kind of rattling sound on my 320 CLK when it is ticking over, does not seem to be related to the temperature of the engine, nor is it audible outside but is quite noticeable inside.
Asked the dealer and they said it is normal, what do you think??

 

[Bobby Dazzler]

A purge valve can cause a ticking noise - I believe there's a modification that can be performed on the bracket to reduce the effect, but unable to provide any more detail unfortunately.

The modification has been performed to my C32 anyway - not sure if it effects the 320 engine though.

 

[recycled]

it is on the w202 and w208 as well