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Author Topic: Failing air con compressor - symptoms?  (Read 1352 times)

Offline Wazzzer

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Failing air con compressor - symptoms?
« on: 18 April 2015, 14:15 »
Used the air con this morning and the revs kept randomly rising up to about 1k on idle, the lack of cold air coincided with this so I'm thinking the compressor is at fault?

Quite handy it failing now just as the nice weather hits... :rolleyes:
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1999 1.8T: R-Tech remap - 225bhp/256lb/ft : K03s : THS FMIC : THS PCR pipe : 2.5" stainless exhaust : THS FR3 Engine mounts : G60/VR6 clutch : Calibra Yellow injectors : VR6 MAF : Devils Own WMI : Forge 007p : Carbonio CAI : Leon Cupra R Brembos : FK AK Street coilovers : Votex skirts : Anniversary front : click ---> http://www.golfgtiforum.co.uk/index.php?topic=92175

Offline Wazzzer

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Re: Failing air con compressor - symptoms?
« Reply #1 on: 18 April 2015, 22:16 »
just hooked it up to VAG COM and the compressor is actually turning off then back on when the revs drop and rise. No fault codes to speak of and not sure if there are any other sensors to log?
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1999 1.8T: R-Tech remap - 225bhp/256lb/ft : K03s : THS FMIC : THS PCR pipe : 2.5" stainless exhaust : THS FR3 Engine mounts : G60/VR6 clutch : Calibra Yellow injectors : VR6 MAF : Devils Own WMI : Forge 007p : Carbonio CAI : Leon Cupra R Brembos : FK AK Street coilovers : Votex skirts : Anniversary front : click ---> http://www.golfgtiforum.co.uk/index.php?topic=92175

Offline rio_gti

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Re: Failing air con compressor - symptoms?
« Reply #2 on: 20 April 2015, 13:52 »
dodgey fuse on the batt cover? corrosion maybe?
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2000 GTI 1.8t ARZ, S2000 filter, DSG intake, Forge 007 dv, Catch can, R-tech custom remap, 3" Supersize Silicone TIP, Powerflex dog bone, 'The Beast' FMIC, Ultimate delete, LCR fuel pump, 3" Turbo back, K03 hybrid, Ported Manifold, S3 injectors, 80mm maf = 280bhp 270lbft :evil:

Offline Wazzzer

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Re: Failing air con compressor - symptoms?
« Reply #3 on: 20 April 2015, 21:47 »
Had a good look at all the wires this evening and given them all a good wiggle with the AC running but no obvious break in the circuits...

VAG COM seems to log that the condenser is turning off and on so it's got to be a sensor or something electrical

I then unplugged the pressure sensor and it seems to be slightly wet in there so I am thinking the sensor itself may have failed. I'll grab another one from the scrappy on Friday and change it over, if it solves the problem I'll get a new one. Oh and VAG COM doesn't log a fault even if the pressure sensor is disconnected which is helpful lol
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1999 1.8T: R-Tech remap - 225bhp/256lb/ft : K03s : THS FMIC : THS PCR pipe : 2.5" stainless exhaust : THS FR3 Engine mounts : G60/VR6 clutch : Calibra Yellow injectors : VR6 MAF : Devils Own WMI : Forge 007p : Carbonio CAI : Leon Cupra R Brembos : FK AK Street coilovers : Votex skirts : Anniversary front : click ---> http://www.golfgtiforum.co.uk/index.php?topic=92175
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