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2000 Beetle AC quits blowing cold air


Yipperboy
06-06-2007, 09:34 PM
My 2000 VW Beetle's AC works fine until the car comes to a stop or in slow traffic( the air then gets warm), then once I speed up it blows cold air once again. I assume the compressor stops when the car isn't moving.PLEASE HELP!!!

Yipperboy
06-07-2007, 06:32 PM
Hey, the AC starting working correctly out of the blue? I'll keep my fingers crossed. I did have Autozone turn off a engine light (P0510) and then I noticed that the AC started working correctly. Probably just a coincidence??????

hako
06-08-2007, 07:31 AM
Sounds like the engine cooling fan wasn't switching in when the A/C was on - there is a relay for the cooling fan under the battery that can fail, also the fuses on top of the battery can corrode badly.

veedubmechanic
06-10-2007, 08:01 PM
check those fuses on top of the battery

4stripes
08-02-2007, 02:34 PM
My 2000 Beetle had an intermittant problem with the AC. Turned out to be the 30 amp fuse holder located on top of the battery cover. Maybe corrosion caused a poor contact, but the holder began to distort. When this fuse is out, the fans & AC stop working! It was an easy fix. My holder just needed some contact cleaner and a new fuse (the old one was "fused" on one prong, so it broke on removal).
Cheers Eric

Yipperboy
08-03-2007, 04:33 AM
I appreciate you guys, Hako, Veedubmechanic & 4Stripes for your advice. It's great you guys take the time to help us confused VW owners out.
450 miles after the "engine light" was turned off by Autozone, it came back on and the AC quit working correctly again.
I purchased a VW/Audi GS200 scanner on ebay(costs $30) and after I plugged it in and erased the engine light, the AC works perfect again. The scanner also erased the SRS (airbag) light.
The car runs great, the engine light that comes on says "closed trottle position." Not sure if this is important?
Thanks guys again for your help.
This website has been a life saver!!!

dav97236
01-03-2010, 01:43 PM
It's a miracle that the compressor ever comes on in these cars. Things that turn off the compressor are : low pressure, high pressure , ambient temp switch , coolant fan control module , power steering high pressure switch , wot or wide open throttle cuts comoressor to reduce engine load for acceleration, a dash relay , 3 dash fuses , an engine compartment fuse so good luck on this one. I have a 1999 beetle I just purchased and i am:runaround: determined to find out why I have no power at the compressor before I just start throwing parts at it. It did have the toasty 30 amp fuse on top of the battery but, after fixing that still no volts to compressor.

hako
01-03-2010, 04:03 PM
I'd be tempted to hotwire the compressor - just switch it in when it gets hot.

dav97236
01-03-2010, 05:05 PM
It's a miracle ! Ran a jumper wire from battery positive to back of that plugs into the fuse box on top of the battery and guess what ? The cooling fans came on strong and the compressor kicked right on. Too much resistance over the 30 amp fuse would not send enough voltage(12.5V) to the coolant fan control module telling it to turn on the compressor clutch. The fix took out the 30A fuse from block (do not replace) Ran 30 amp fusable link wire from Battery positive to back of connector wire to the coolant fan module . This cuts bad fuse pins out of curcuit and still gives the curcuit a 30 amp fuse to protect it. cost $6. It works perfect now.:rofl:

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