Cam Chain

[Stuart K]

I've got a WB210 (E class 220CDI Estate, Silver, black leather, auto).

Its got ful MBSH up to 115,000 and its now on 128,000 so due a service in a few thousand. My question is do the cam chains ever need replacing and if so when?

I've had a number of Audi's (A4 Avant and TT) so have been used to getting their cam belts changed every 80K then 60K thereafter.

Many thanks

 

[hosejockey]

If the oil has been changed frequently and there are no rattles you might leave it ,or you could pop the cover off and have a look to see what the chain is like and then make a decision .if in doubt replace .

 

[television]

And while doing what hosejockey says after 150k miles take a look at the chain sprockets, if the teeth are sharp, they should be replaced to stop the chain from jumping a tooth.