Volks AutosAH Fabrications
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  1. #1
    sabaxter's Avatar
    1st Gear

    Join Date
    Jun 2013

    A4 B6 Avant 1.9tdi 130 AC issues

    Good evening guys. Firstly I would like to apologise for further threads on A/C issues. But I've checked all the threads I have come across and still no avail.

    1) The A/C only gives out ambient temperature
    2) ECON light does go on and off
    3) I've had it re-gassed and the pressure is good.
    4) The clutch plate and bolt are in tact and therefor not missing.

    Ive had a good luck tonight and done some electrical testing. Both the fuses in the panel are fine. Im unsure of the relay location although I have a 267 that I got on ebay. Tonight I have done some voltage tests. There is a 14 pin plug on the NS of the engine bay I took a reading there and got just over 12V

    I took the plug of the A/C compressor and did a test there and got under 1V im confused at where the voltage is dropping. On the left fan there is a silver looking electrical box. Could it be this is faulty? Also on each side of the fan assembly there are sensors with yellow plugs, what are these?

    Any help is much appreciated but please can you keep it simple especially if your explaining electricals to me.

    Anyone in Manchester area with a VAGCOM that could assist?

    Thank you all!

  2. # ADS
    Join Date
  3. #2
    Reverse Gear

    Join Date
    Feb 2014
    I have exactly the same symptoms in my A6!

    Collected my car from the garage last week after a re-gas where they gave it a clean bill of health but the output just feels ambient on LO setting.

  4. #3
    sabaxter's Avatar
    1st Gear

    Join Date
    Jun 2013
    Same issue here. Im not getting power to the compressor so in summer ill run a feed and if it works ill check the harnes.and power box on the rad housing
    A4 B6 1.9TDI Avant in Ming Blue. S Line Bumper and Door Blades, Cruise Control, RS4 Carbon Fiber dash inlays, Passat Projector fogs with 55w 8000k HID, Carbon Wrapped Grills, Cupra Splitter, BBS LM reps 19", Heko Deflectors, S Line Spoiler, All LED interior Lights, Auto Dim Mirror, 1.8t exhaust, HD Touch screen headunit GPS DTV IPOD CD DVD, Front Armest, Rear Cupholders, Focal Sub, Focal Amp, Hertz 4ch Amp, 2x Focal Access 165a1 Components.

  5. #4
    5th Gear

    Join Date
    Nov 2013
    Heath Hayes
    You need to connect VAG-COM up and check for fault codes. There are several reasons why it may not be working but all of that is guessing. much easier to fault it correctly.

    Karls 312bhp A4 3.0 TDI build thread http://www.audi-sport.net/vb/audi-s4...ld-thread.html



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