Question about 2003 Mercedes-Benz E-Class

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A/C blows warm air on left vent and cold air on right vent.

My 2003 E500 blows warm air on left vent and cold air on right vent even when set to low temperature setting. I checked the left and right blend air actuators and they're working fine. What could be the problem?

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  • icorella May 11, 2010

    Open the hood, turn on the A/C and feel the suction line (compressor to expansion valve). It it's cold, that means that the problem is inside (actuator). If not cold, it means the system is low in charge.

  • Samuel Charles Spriggs May 11, 2010

    Could you elaborate on this?:



    "I checked the left and right blend air actuators and they're working fine"

  • yadayada
    yadayada May 11, 2010

    try disconnecting the battery for 5 minutes to re-sync the blend door temp control motors.

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Hello,good day,seems all the clarification request is all good,if all tips are done,but the problem is not corrected,send your car to a dealer,maybe one of the step motor of air flap is stuck or synchronized of all air flap is needed,they have the star diagnose to perform the job,or your recirculating pump need tobe check,ty

Posted on May 13, 2009

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