1989 420SEL FRESH AIR RECIRCULATING SERVO - Mercedes-Benz Forum

 
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post #1 of 2 (permalink) Old 07-07-2010, 09:19 PM Thread Starter
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Date registered: Jul 2010
Vehicle: 1989 420 sel & 1998 S500
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1989 420SEL FRESH AIR RECIRCULATING SERVO

LAST MONTH I BOUGHT A 1989 420SEL . ITS IN GREAT CONDITION AND SO FAR ALL I HAD TO CHANGE IS THE ANTENNA MAST . ONLY THING IM NOT SURE IS IF THE FRESH AIR RECIRCULATING SERVO IS WORKING PROPERLY. AC IS COLD ,UPPER & LOWER VENTS ,DEFROST, CLIMATE CONTROL & HEAT ALL SEEM TO WORK RIGHT . THE RECIRCULATING SWITCH LIGHTS UP WHEN PUSHED ON , BUT OUTSIDE SMELLS STILL COME IN . ALSO THE REAR VENT BLOWS COLD AIR BUT NO HEAT. WHEN ALL IS OFF AND CAR IS MOVING FRESH AIR FLOWS LIGHTLY FORM REAR VENT.
ARE THESE SYMPTOMS RELATED TO THE SAME PROBLEM??
IM THINKING THE OUTSIDE AIR VENT IS STUCK OPEN OR IS THIS IS HOW THE SYSTEM WORKS
AIR TEMP HERE IS IN THE 60S AND I SET IT ON AUTO .
THANKS
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post #2 of 2 (permalink) Old 07-11-2010, 08:45 PM
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