Author Topic: Aircon compressor noisy  (Read 899 times)

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Offline superfueler

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Aircon compressor noisy
« on: September 17, 2020, 09:38:18 am »
Ok, so my R32's aircon compressor started making a whining / slight grinding noise about a month ago when on, selecting econ on the climatronic, noise goes away (obviously with clutch then disengaged on compressor)

I have been driving with the a/c off for most of the winter, occasionally running it just to keep it healthy, now the noise is getting more prominent. Will want it operational for the summer obviously.

I take it this will be the compressor bearings shot. From what i have seen on research, there's 2 sets of bearings in the unit, 1 set for the compressor and 1 for the clutch.

Which will be better, getting the bearings replaced OR just getting a replacement compressor? Anyone able to point me in the right direction?

Cheers.
Current: 2010 Audi A4 2.7 TDI silver, 2017 Ford Ranger 3.2 Px2 DC frozen white.
Past: 2004 Golf R32 black pearlescent, 2009 Audi S3 white, 2004 Audi A4 B6 1.8T blue, 99 Golf mk4 GTI black, 2005 Audi A4 B7 2.0T black.

Offline 80 Vert

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Re: Aircon compressor noisy
« Reply #1 on: September 17, 2020, 08:56:12 pm »
Thrust washer most likely causing excessive end float. Grab the nut on the electro clutch with vise grips and pull in / out. Should only be a tiny bit of play. (As in barely anything)
2010 T5 Transporter TDI  Tuned by Superior Tuning NZ
2003 Jetta Coupe soon to be R36TT
1991 Golf GTI 2.0 TSI swapped
1963 Type 34 Karmann Ghia, turbo 2.0
1990 Porsche 964 911 Carrera 4
1980 1303 Beetle vert, under restoration

Offline 80 Vert

  • only milk and juice comes in 2 litres
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Re: Aircon compressor noisy
« Reply #2 on: September 17, 2020, 09:00:22 pm »
I've repaired loads of them when mk4's were still expensive cars.
2010 T5 Transporter TDI  Tuned by Superior Tuning NZ
2003 Jetta Coupe soon to be R36TT
1991 Golf GTI 2.0 TSI swapped
1963 Type 34 Karmann Ghia, turbo 2.0
1990 Porsche 964 911 Carrera 4
1980 1303 Beetle vert, under restoration

Offline superfueler

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Re: Aircon compressor noisy
« Reply #3 on: September 18, 2020, 10:30:34 am »
Thanks John, i will have a look.

Not much space in te engine bay to get to it from above, perhaps it'll be easier from underneath the car. How difficult will this thrust washer be to replace?

Mk4's are still expensive cars.............everytime i open my wallet at the parts store and at the pump.  :D
Current: 2010 Audi A4 2.7 TDI silver, 2017 Ford Ranger 3.2 Px2 DC frozen white.
Past: 2004 Golf R32 black pearlescent, 2009 Audi S3 white, 2004 Audi A4 B6 1.8T blue, 99 Golf mk4 GTI black, 2005 Audi A4 B7 2.0T black.

Offline 80 Vert

  • only milk and juice comes in 2 litres
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  • ****
  • Posts: 8779
  • All thats left to do is everything!
Re: Aircon compressor noisy
« Reply #4 on: September 18, 2020, 04:57:06 pm »
Do it from underneath and take the drive belt off
2010 T5 Transporter TDI  Tuned by Superior Tuning NZ
2003 Jetta Coupe soon to be R36TT
1991 Golf GTI 2.0 TSI swapped
1963 Type 34 Karmann Ghia, turbo 2.0
1990 Porsche 964 911 Carrera 4
1980 1303 Beetle vert, under restoration