mercedes benz question
 

hi. i have a question my heater is not working on my 93 mercedes 300se i turn it on yesterday and no heat. its very cold outside do anyone know what i need to check for first and thanks for your help.

Blower works, but not blowing hot air? Blower not working? Nothing? Please elaborate.

mercedes benz question
 

yes... blower is working good it get a little warm but not hot.

no heater
 

most likely the heater valve is faulty. it is located in the engine compartment on the drivers side just behind the headlight. check for power to the valve with a test light. 9 times out of 10 this is your problem. they are not cheap and be a little bit of a pain to replace because the hose clamps are a little difficult to get to. if you have some difficulty you might be better off taking it to a shop. hope this helps

mercedes benz question
 

ok.. thank you sir.