C220S CDI water pump leak

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oldbilbo

New Member
Joined
Apr 27, 2021
Messages
3
Location
Bath
Car
C220 Estate
I'm having slow coolant leak, identified from warning panel and by servicing agent - who 'suspects' water pump leak at £££. I'm tempted to revert to an economic repair. Can anyone suggest a DIY approach, including carrying a bottle of 'proper' coolant for top-ups?
 
IS yours the OM651 engine? I think most came out the factory leaking LOL.. Mine started at around 90K. Its not a big job to replace the water pump, but only use a genuine merc part as they revised it with a metal housing over the original plastic one.

Very common failure point on the OM651, and no big deal as its located at the front of the engine so easily replaced.
 
Can't get away from anything that's Vintage oak vat matured , some vats are over 100 years old .

I wonder what the OP is on ?
 

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