air con

  1. D

    Blower / Fan Whistling Noise

    Hi I’ve recently bought at 2017 Audi A5. I had kept the blowers on the lowest setting until the other day, I turned them to the second or third setting and maybe half and hour later it started making a whistling noise. To get the whistling to stop I have to turn the setting up and down until...
  2. W

    A/C ON & ECO not selectable when engine is on?

    Hello! I have a A4 B9 (2016) and noticed today whilst driving that my AC was stuck in the off position. When I try to click it upwards to ECO or ON they just appear faintly but it doesn’t change. Weirdly this only happens when the engine is on, if I just have the ignition on they are both...
  3. G

    2005 Audi A3 sport back 1.6 Heater blower blowing cold air till on “HI” setting

    Hi I have a 2005 audi A3 sport back and the heater system is cold until on the HI setting, It’s making me think it could be a resistor but I’m not to sure, Also to add to this my blower motor has been playing up and only turning on at certain times. It’s very temperamental and infuriating any...
  4. P

    Air con electrical problem

    Any help appreciated with this problem but I’d like to ideally get relay information or a wiring or schematic diagram for my car to progress troubleshooting. A3, 2006, 2.0 TDi, DSG. Defect: Air con doesn’t get cold until driving for several miles at higher speeds. Troubleshooting so far...
  5. DLH21

    A3 2015 8V air conditioning issue

    Hi everyone, 2015 1.4tfsi A3. I noticed this week that the air conditioning is not coming on when I press the AC switch and have now learned that I probably should have been running it all year round which is news to me but lesson learnt! When I press the air conditioning button, the light...
  6. B

    Heater & Blower issues

    Hi, I’m having big issues with my heater for 11 months and despite been to Audi 3 times, replacing the blower and resistors twice I still have the same issues, perhaps even worse and am begging for help from people like you who live and love Audi. the issues are not consistent and do not show...
  7. Craig hopkins

    A/C problems, I'm lost.

    Hi all, I've never been able to get my A/C to work on my 2002 1.9tdi AWX, first time it was due to the high pressure sensor being bad which I replaced but it had been emptied of refrigerant so couldn't test it. Had it filled up the other day and econ light now stays off (no high pressure...
  8. xkieron99x

    Air con help

    So for the first time this year I used the air con in my car, no faults indicated on the climate control unit or shown on vcds, so i topped up with refrigerated keeping the pressure between 30-40 psi. After the auxiliary fan kicked in for about 20-30 seconds it turns off and econ mode kicked in...
  9. Max Ivory

    Aircon ECON button stays lit, advice needed..

    Hi guys I know there's already quite a few threads on this common fault, but wanted to see if anyone could give me a steer as I'm hoping to get my aircon working on my A3 2005. As I understand it the ECON button staying on means there's a problem activating the system which could be re gas...
  10. Thomas Nevin

    Help Please A4 Avant Fans Whistle & MAF / Thermostat

    Hi all and happy new year. Have a couple of questions that if anyone can help I would greatly appreciate it. I have an Audi A4 Avant 136bhp 2011 with 96,000 miles on the clock. I have noticed the fans whistle slightly inside the car at certain fan speeds. Googled this already but still not...
  11. Kristianj1977

    So many different compressors model numbers for same a3 grrrrr

    Hi there everyone, this is my first post so please bare with me if I get anything wrong. So aftwr some lengthy diagnosis I'm not gonna bore you all with, my compressor is on its way out on my air con system. I have the a3 8p2 sportsback. So 57 plate. 2 litre tdi. There is a gentleman selling...
  12. 2

    2.0 Diesel convertible 14 plate Hvac problem

    Hi all. My fan started working intermittently then packed up along with flaps control and also heat. Control panel looks normal. Car has had new blower and resistor. I can get fan working by disconnecting the small connector from back of Hvac control panel but still no flaps and heat. Codes are...
  13. R

    Radiator fan and ac fan not working

    Hello, I have a 53 reg 2.0 fsi A3. I’m after some information on how to diagnose why my fans dont come on when they should. They dont come on when the engine gets hot ie the car will over heat. They also dont come on when I switch air con on (turn off economy mode) air con will work tho but...
  14. B

    Air Conditioning Compressor question

    Hi There I have a 2006 A4 2.0tdi, the air conditioning does not work. I thought it just needed gassing but when I took it to be gassed they said the system had been done and it had no leaks, but it was not cooling. The garage seemed to think its more than likely the compressor gone. Ive got a...
  15. J

    Air condition intermittent problems V6 tdi

    I have a 2007 56 plate Audi A4 3.0tdi Quattro. I have had it just over one year. Done 115k. Recently the air con ECON light just came on and I got the pressure switch changed for a new one. (Recommend by the garage). The problem then became intermittent and didn't go away. The car turns on and...
  16. TBEJHM

    AC Condenser Hole?

    Hi, I am new here. I have 2l S Line 2014 A3. My AC light won't stay on as soon as I take my finger off the AC button the light goes off. Now I have read quite a few posts about the possibility this is down to a hole in the condenser. I have inspected my condenser and I seem to have found a...
  17. Sir_Bacharach

    Climate control fan speed problem.

    Hi, I have an A3 8P1 2006 model. It has single din radio so I did the research and upgraded to a double DIN unit. I took the cage and climate control unit as well as the buttons I needed from a 2004 model. I'm not sure if I'm perhaps being paranoid but when it's in AUTO mode the fans seem to...
  18. J

    Air Con not working. Please help!

    Hello, I have a 2011 Audi A3 2.0 TDI with air con that is not engaging. It's full of gas, I have checked the fuses under the engine and next to the steering wheel but that's about it. Any help please on locations of other things to check and/or what to try? Much appreciated Jack
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