2000 Volkswagen Passat CLIMATRONIC CONTROL UNIT

2000 VOLKSWAGEN PASSAT
113,000 MILES • 4 CYL • FWD • MANUAL
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CALU
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  • 1 POST
i am having trouble with the a/c, heater. at the moment sometimes it works then all of a sudden it does"nt. also if i have the unit on auto there is a strange noise almost like a screeching sound this also drains the battery. what i have noticed that if i have the unit switched to econ it seems to work better and this does"nt drain the battery. i was thinking of replacing the control unit inside the car,would this solve the problem or is it something more serious?
Sep 24, 2010 at 11:26 AM
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MERLIN2021
  • ✓ASE Certified Mechanic
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  • ASE Certified Mechanic
A screeching sound would be more like the blower motor, if you hear it screeching, try raising or lowering the fan speed to see if the noise changes or goes away. A bad motor will use too many amps and could possible discharge the battery.
Sep 24, 2010 at 3:27 PM
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