2000 VW jetta - air conditioning doesn't work & fan goes on/off

Hi MechxD.

About the Jetta AC, if it is charged it is usually the compressor. I think that there was a service bulletin recalling Sanden AC compressor 1K0 820 803 S

Check limiter (see pic.) and control valve. The limiter gets easily damaged and control valve gets stuck with metal particles.




....about your Fixya problem in the lounge, the lounge is not working because of a temporary malfunction. See: Cannot post in Lounge

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All the best.

Ginko

you are low on gas so it will not click on as the gas is also the lubricant ,this vehicle should hold about 700 grms of gas

Fan belt routing diagram for 2000 VW Bora 1,9 TDI:


CS = Crankshaft
G = Guide pulley
Gen = Alternator
T = Tensioner
AC = Air Conditioning
PAS = Power Assisted Steering
WP = Water Pump

if you can do it yourself get under the car and make sure that the pan bolts are tight if they are look for any hoses going to and from trans make sure that they are all connected and tight even though the fluid never has to be changed there is still a fill tube make sure that the end of the tube that goes into the tranny is secure and tight being that you had alot of engine work done its possible that one or all of these things could be wrong could have inadverntenly loosened it up and forgot to retighten. hope this at least gives you a starting point.

you need to pull the codes and go from there

I pulled my switch out of the dash and sprayed it with contact cleaner. Air dry and put back in. 2 years without a problem. If you're not electrical savy, I'm pretty sure there was a recall on that, and it should be replaced for free.

Sounds like a clogged heater core or a issue with blend but if you have axis to a air compressor you could blow it out and it should be good done it many times.

THE AIR CONDITIONING IN MY 2000 JETTA VR6 JUST STOPPED WORKING, NO WARNING. I HAD TWO DIFFERANT MECHANICS LOOK AT IT. THEY SAID THAT THE COMPRESSOR IS NOT GETTING ANY VOLTAGE, BUT WHEN THEY JUMP VOLTAGE TO THE COMPRESSOR IT STILL WILL NOT START. THEY SAID THE COMPRESSOR SEEMS TO BE OKAY. ANY SUGGESTIONS

the compressor does not engage the fan you should check all you fan rely and tempriture gage

U may be low in Freon gas.
When Freon is low there's low pressure switch that will prevent A/C compressor clutch from engaging to protect it from failure.
So, first check Freon pressure & any leaks form lines & hoses fittings.
Even if the fan is working, that doesn’t indicate proper compressor OP'S.
Look at the compressor front side you'll see the clutch stationary while the AFT pulley moving.

Then put air-condition compressor switch to ON (Engage),
You should see the clutch engage & start rotate,
If NOT, this is very clear indication u r low in Freon.

Regards;
MAR