Droverunner
Senior Member
- Joined
- Aug 2, 2017
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- Location
- West Cambridgeshire
- Your Mercedes
- 2007 CLK 220 CDi Sport. 2014 S-Max 2.0TDCi.
Just been through this lot of work and thought the details might help someone in the future...
Some 6wks ago... a week after purchase... having completed a major service and fitted new rear tyres I declared our 2007 CLK sorted for the next 6k at least. But it didn't turn out to be quite that simple.
As the previous aux drive belt had been on for over 40k I decided to routinely replace it with a new one (Contitech). On going to do the job I could see the belt tensioner shaft had worn a little allowing the pulley to twist and so the belt to run off true plus it was "bouncing" a fair bit with the associated duh duh duh noise at idle... so I ordered a new tensioner too (Gates).
On removing the belt to swap it and the tensioner I found the water pump pulley had some play (not yet leaking) plus the two upper guide pulleys had noisy bearings.
The tensioner was a very easy two bolt fit but didn't cure the joggling belt so I thought I'd wait until I'd swapped the water pump and idlers before investigating further.
This tensioner... http://www.ebay.co.uk/itm/371734399021
Forgot a pic of the tensioner... just the belt.
Some 6wks ago... a week after purchase... having completed a major service and fitted new rear tyres I declared our 2007 CLK sorted for the next 6k at least. But it didn't turn out to be quite that simple.
As the previous aux drive belt had been on for over 40k I decided to routinely replace it with a new one (Contitech). On going to do the job I could see the belt tensioner shaft had worn a little allowing the pulley to twist and so the belt to run off true plus it was "bouncing" a fair bit with the associated duh duh duh noise at idle... so I ordered a new tensioner too (Gates).
On removing the belt to swap it and the tensioner I found the water pump pulley had some play (not yet leaking) plus the two upper guide pulleys had noisy bearings.
The tensioner was a very easy two bolt fit but didn't cure the joggling belt so I thought I'd wait until I'd swapped the water pump and idlers before investigating further.
This tensioner... http://www.ebay.co.uk/itm/371734399021
Forgot a pic of the tensioner... just the belt.
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