2005 Audi A4 B6 quattro A/C issues

[fabianunited]

I have a 2005 audi a4 B6 quattro with a 1.8t engine, it's been having trouble with the A/C not cooling, and I am not sure it will be the compressor since I just change it last year together with the drier and the expansion valve. Last year when my compressor failed, the clutch popped off and the ECON button came on, this time none of that happened, I already checked and refilled the refrigerant and checked the pressure sensor but it seems to be fine, there are no codes on the computer. Is there any other things I can check such as relays or anything like that before I change my compressor again?

Thank you

[Luccia at Pelican Parts]

I'm not too well versed in the A/C department, but you could possibly have a leak in the system somewhere, since you had to refill the system it might be a possible cause. You can do a dye test to confirm. Definitely make sure it's not a failed pressure switch or maybe the flap that switches from hot air to cold air. Also, what's the warranty info on your compressor? Ours is 24 months/24,000 miles so if it has only been one year I'd check and if it does turn out to be faulty, use the warranty.

A/C components here if needed: http://www.pelicanparts.com/catalog/SuperCat/SubCat/1304-Ventilation-A-C.htm

[Dfitz21]

What are the current trouble codes or vcds scan from the car? You probably have a failed or failing cooling fan module. Coolant temperature sensor also causes this problem. You will have to evaluate some actual date from the car.

D