MK5 Golf GTI » Forum » All Things Mk5 » Author Topic: Air con not working (Read 955 times) Kevin37. Taking part; Thank You-Given: 2-Receive: 0;

21662 posts · Joined 2009. #2 · May 27, 2010. check the fuse atop the battery firstif that's good, then disconnect the fan plugs and jump 12V to each fan. if they both work the issue could be the fan control relay or low refrigerant in the system. to check the refrigerant you need tools, and you'd be better off going to an a/c tech to
All information provided is for information only and is not designed to replace a service manual or professional help. Use at your own risk. 1. Diverter valve failure 2. PCV failure 3. Broken intake ducting 4. Cam lobe wear 5. High pressure fuel pump failure 6. Air conditioning does not work 7. Tumble flap failure 8. Cold start problems 9

Re: How to diagnose air con problems. My air con packed up (07' gti) and I instantly thought compressor however it turned out to be the valve instead and a £120 fix which I managed to get for £60 with a 50% contribution from vw. You will need a aircon re-gas with an added dye to see if & what's leaking then take it from there.

many thanks. morgan. you need about £500 worth of equipment, for this and it is illegal to release refrigerant into atmosphere, and no matter what anyone says you should not have to top up an ac system because that means there is a leak on the system which is also illegal. It should never lose it's refrigerant charge through all its lifetime . 375 184 235 405 492 414 93 253

mk5 golf air con not working