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Old 06-12-2010, 01:09 PM
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olpos olpos is offline
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Join Date: Sep 2003
Location: san diego.ca.
Posts: 323
Question,Any bad water pump impellers on M104's

Going crazy with this C280 ,1997, that i bought with a bad radiator.109k miles on car.Plastic had burst neck did not break.Note there is no air in system,pretty good at bleeding these cars.
Put in new radiator,car almost overheated in about 10 miles.
Replaced thermostat ,Did over heat in about 1/2 mile.
Took out stat to test,over heat in less than 1/2 mile
Found coolant on number 6 plug.New head gasket and did head at same time.
Over heat in 1/2 mile.
Found new radiator only gets hot on hose side 210 degrees.
3/4 of radiator 100 degrees.
2nd new radiator SAME
If this was a vw or bmw with plastic impellers would have changed water pump with radiator,but these Benz water pumps don't seem to have impeller problems.
SO has anyone had a impeller problem on a M103 ORM104??.
Its getting a new pump next week at this point just wondering if this is just my luck or ??
Rich
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90 300CE 91K Signal Red,Black Sold 2007
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