Unitronic Stage 2 93 / Unitronic DSG Stage 1 / Unitronic Customized Downpipe / GFB DV+ / Golf R Intercooler / OEM LED Tinted Tails / Tyrolsport Deadset Collar Kits Front + Rear / Soundaktor Switch 160 Video GTI Reference Library Air conditioner compressor for VW Golf V Hatchback (1K1) 3.2 R32 4motion (184 kW / 250 hp) BUB, CBRA 11/2005 - 11.2008. Air conditioning compressor for VW Golf V Hatchback 1K1 Diesel / 1.9 - 2.0 liters / 2003 - 2008 year. AC compressor for VW Golf V Hatchback (1K1) 1.9 TDI (66 kW / 90 hp) BRU, BXF, BXJ 05/2004 - 11.2008. MK5 Golf GTI » Forum » All Things Mk5 » Mk5 General Area » air con not working - Help! « previous next 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 May 15, 2017, 11:36:29 AM. I was asked to help try to sort out an air con fault on one of the extended family's cars recently- a Mk5 Golf GTi. The air con had apparently recently stopped working, and a quick check of the system revealed that there was zero gas in it so obviously a leak somewhere. Remove the engine cover, disconnect the battery. Remove the air intake assembly by uncliping the section of pipe at the top of the engine like so. this will enable access to the bits you need to do. Then undo the timing belt cover by unclipping 3 clips, 2 of them just behind the fuel line pipes and one at the back of the engine. If it will turn then try checking the relevant fuse, etc. or take out the fans and open up the small one to see if one of the carbon brushes has stuck open. If so, free off, clean, reassemble and see if that helps. If the small fan isn't turning then the system can't cool the refrigerant which leads to no cool air. Hope this helps. Mine was alright for years until a stone went throuigh the condensor.Most likely it's got a leak. The easiest check to do would be to put 12 volts directly onto the air con compressor clutch,if it pulls in and blows out cold air then it's fairly likely it's the HP/LP switch that knackered. Vay Nhanh Fast Money.

mk5 golf air con not working