W211 E270 CDI - overheating?? - Page 3 - Mercedes-Benz Forum
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post #21 of 32 (permalink) Old 09-08-2017, 09:20 AM Thread Starter
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Thanks mtrevelino.
The mileage on car is 170k, if i changed both the radiator and water pump, how am i going to know which part was causing engine to overheat?
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post #22 of 32 (permalink) Old 09-08-2017, 05:34 PM
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Quote:
Originally Posted by Azeemmuh View Post
Thanks mtrevelino.
The mileage on car is 170k, if i changed both the radiator and water pump, how am i going to know which part was causing engine to overheat?
I was just throwing it out there. To change the water pump is an approximately four hour job. If you change it while the radiator is out, it would probably take under two hours. With 170k, the water pump does not have much life left.
Mike T.
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post #23 of 32 (permalink) Old 09-08-2017, 07:16 PM Thread Starter
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Noted.
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post #24 of 32 (permalink) Old 09-11-2017, 07:30 AM
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MB water pumps can last million miles, although latest models report more failures than older. The pump on my father's 1987 300DT is still original at 300k miles.
You can inspect the pump for bearings play after belt removal.


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post #25 of 32 (permalink) Old 09-11-2017, 05:19 PM
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MB water pumps can last million miles.....
I recently had my cdi at the dealer for an inspection and one motor mount. When I take it to the dealer they do a thorough inspection. It has been a couple of years since I had it at the dealer so I wanted them to do the inspection and see what they find. Now to what the Service Writer said. He said he rarely sees water pumps go bad, but he mentioned in my case the water pump is seeping. It is seeping from the gasket (not the weep hole). He told me to just keep a eye on it. He did quote a price of approximately $900 for the job. And that is strictly the water pump, no pulley's or anything else. When I decide to have this done, I will purchase the pump and pulley' sand have my indie do it. My cdi has 150k on it.
Mike T.
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post #26 of 32 (permalink) Old 09-11-2017, 05:25 PM
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I'have been via few of those "Free safety inspections"
$4000 estimate for jobs under the car and checking it at home - the belly pans were never removed.
From quoted 2 flex disks - 1 was new and 2nd in decent condition. Evidently SA seeing car with over 200k miles and no service records assumed everything is original.
I can do such inspection in about 25 seconds from comfort of my chair.


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Last edited by Kajtek1; 09-11-2017 at 05:28 PM.
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post #27 of 32 (permalink) Old 09-18-2017, 10:34 AM Thread Starter
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Update : Changed the radiator this evening. With the new radiator fitted and after burping the cooling system, engine temperature is still 107-108 deg C? The old radiator looked fine to me.
Any ideas?
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post #28 of 32 (permalink) Old 09-18-2017, 01:42 PM
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As per my post number 19, Change the thermostat.
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post #29 of 32 (permalink) Old 09-18-2017, 08:35 PM Thread Starter
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Thanks Benzyle, I should've listened to you earlier. Since I live in a warmer climate, should I go for 85C thermostat or lower?
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post #30 of 32 (permalink) Old 09-18-2017, 08:50 PM
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Quote:
Originally Posted by Azeemmuh View Post
Thanks Benzyle, I should've listened to you earlier. Since I live in a warmer climate, should I go for 85C thermostat or lower?
I don't think you have a choice of different temps.
Just get the correct one for your model,which I think will have an opening temp of 87 degrees c.
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