Mechanics

OVERHEATING

1991 Mercedes Benz 300e

Engine Cooling problem
1991 Mercedes Benz 300e 6 cyl Two Wheel Drive Automatic 186259 miles

how do I check/test the water pump
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Keoki5150
June 28, 2010.



Fill the radiator up-start the car and look inside the opening is coolant squirling around if so keep it running and pinch of the upper radiator hose for a few secs and then let go did the coolant flow increase if so the water pump is doing its job

Rasmataz
Jun 28, 2010.
The radiator has no cap there is a seperate resivoir to fill with water thanks anyway guys

Tiny
Keoki5150
Jun 29, 2010.
HE MEANT THE RESERVIOR OPENING WHERE THE CAP IS LOCATED. SAME TEST SHOULD PRODUCE THE SAME RESULTS.

Tiny
Tdhc13
Jul 12, 2010.