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2000 Volkswagen Passat CLIMATRONIC CONTROL UNIT

Tiny
CALU
  • MEMBER
  • 2000 VOLKSWAGEN PASSAT
  • 4 CYL
  • FWD
  • MANUAL
  • 113,000 MILES
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?
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Friday, September 24th, 2010 AT 11:26 AM

1 Reply

Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
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.
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Friday, September 24th, 2010 AT 3:27 PM

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