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MB Paul
MB Paul, Mercedes Technician
Category: Mercedes
Satisfied Customers: 3567
Experience:  Qualified Mercedes Benz Diagnostic Technician - 20+ years experience - Workshop Foreman for Mercedes
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Cannot get warm air from climate control. Also, no air cold

Customer Question

cannot get warm air from climate control. Also, no air cold or hot from center vents.
JA: Do the vents feel cold? Is there a coolant leak?
Customer: cold air from ms\ide vents. no coolant leaks
JA: What is the make/model/year of your car?
Customer: 1999 clk 430
JA: Are you fixing your 430 yourself? What have you tried so far?
Customer: tried clearing codes
JA: Anything else you want the mechanic to know before I connect you?
Customer: no
Submitted: 7 months ago.
Category: Mercedes
Expert:  Michael Warfield replied 7 months ago.

So you have air flow coming out of the vents, it just is not warm, correct?

Expert:  Michael Warfield replied 7 months ago.

Is the engine coolant temperature gauge getting up around 80C or above? Do the vents get any warmer if rev the engine and hold it at 3000 rpm for a couple of minutes?