CIRCULATION PUMP LEEAK W124 M103
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Joined: Jan 2015
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From: Worcestershire UK
W124 260E
CIRCULATION PUMP LEEAK W124 M103
Hi to you all ,can i ask if its possible to repair the water heater circulation pump its fixed on the body under the coolant tank.It takes water up and through to the cars heater system. Can you get repair kit? As my Mot was done to-day. So on return i checked the fluids to find coolant driping from the centre of the curculation pump .This is the first time on the road this year. After a lot of work on the engine ie water pump belt tensioner pullys. And still have a water leak. But this will be an easy fix for once .
Last edited by optimusprime m1; Apr 1, 2015 at 04:36 AM.
Thread Starter
Super Member
Joined: Jan 2015
Posts: 920
Likes: 46
From: Worcestershire UK
W124 260E
right
Plutoe i am very sorry ,your are right , and i am wrong ,as usual my wife tells me ..A senior moment i think they call them .As i have worked on so many bits on this car i ramble on a bit. It is the circulation pump for the heater. After i replacing the water pump for coolant loss ,the belt tensioner was replaced along with the pullys .Small elbow in the radiator was also leaking this was replaced at the same time.As all looked ok the day. Then i took the car for its MOT [ yearly road worthy test] but on checking it the next day. That was after i had returned , this circulation pump was dripping coolant and level was down in expansion container. I am just about to remove it from the car so i an operate on it . Let you know what i find asap.
Thread Starter
Super Member
Joined: Jan 2015
Posts: 920
Likes: 46
From: Worcestershire UK
W124 260E
I regret to advise that I have never found a repair kit and have always had to replace what you call the water heater circulation valve.
However that said there has to be an old fart out there that after weeks of research(time) finds a part used on the space shuttle that works in his application.
Therefore you may want to take the time to look, as you have all spring, summer and fall before the car goes back to the garage.
However that said there has to be an old fart out there that after weeks of research(time) finds a part used on the space shuttle that works in his application.
Therefore you may want to take the time to look, as you have all spring, summer and fall before the car goes back to the garage.
Thread Starter
Super Member
Joined: Jan 2015
Posts: 920
Likes: 46
From: Worcestershire UK
W124 260E
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Hi as the pump was playing up ,i replaced the seal with a tap washer but have not put it in to the car. I got thinking and have purchased a new one .Thank you for your help. And if anyone can find a seal set please let me know so i can replace my pump and keep as a spare.
