Question about 1999 Mercedes-Benz E-Class

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1999 Mercedes e-320 Heater (blows cold air)

1999 Mercedes e-320
my heater works off and on, mostly cold air comes thru, is there a sensor to read the temperature inside the car? it is an atuomatic digital
my engine temperature guage shows in middle 80
I also just changed the water pump and add 2-anti freeze in reservoir,

frank_kashkouli@yahoo.com

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Hi there,
firstly why did you replace the water pump, would i be correct in thinking that it broke, if so, when you took it out was there damage to the impellor, usually there is and these bits of debris have to be retreived. the hot air in your car comes from a heater matrix that is seperate to the main radiator the cause of your problem could be explained by loose debris blocking the heater matrix inlet, also that debris could fall back down and destroy the impellor on the new pump.
If the impellor completely broke up then it will be debris in the system this should be fixed asap to safeguard the new pump.

Posted on Apr 30, 2009

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