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Model specific boards => Golf mk4 => Golf mk4 TDI => Topic started by: ImIMK3 on 29 May 2017, 05:41

Title: A/C blowing hot air
Post by: ImIMK3 on 29 May 2017, 05:41
Hello everyone. In this fantastic weather I decided to use the a/c on my TDI for the first time to find that the a/c was blowing hot air. I decided to leave it on for a while to see if it takes time but still blowed hot air. Does anyone the best way to diagnose the issue?
Title: Re: A/C blowing hot air
Post by: Twentymac on 08 June 2017, 11:00
Mine does the same thing every year chap.

Old cars / Old AC system!
Title: Re: A/C blowing hot air
Post by: bgbazz on 08 June 2017, 12:45
Check and see if the compressor is engaging when you select the cold setting...the pulley will be getting driven by the belt but the clutched centre needs to be turning as well. One of the reasons it will fail to turn is lack of gas...they are designed that way to protect the compressor. If that turns out to be the case, a visit to a garage which can re-gas the system, is the next step...they will do a leak test at the same time (if they are any good).

Hope that helps.   :smiley:
Title: Re: A/C blowing hot air
Post by: bgbazz on 12 June 2017, 17:44
Guess you got it working properly.

 :wink:
Title: Re: A/C blowing hot air
Post by: Promethius on 26 November 2018, 11:27
It could also be that the compressor shaft has sheared, allowing the clutch to fall off - this is not uncommon older engines.