2002 Audi A4 Ac Not Working Following Codes Thursday 20 April 2017 16 2002 audi a4 ac not working following codes thursday,20,april,2017,16:27:35:63715 vcds version: release 16.8.3 (x64). If the ac button on your audi a4 is not working, it could indicate a problem with the ac control module or a blown fuse. p0641 (sensor reference voltage “a” circuit open) b1000 (ecu malfunction).
Ac Not Working Audiworld Forums I removed the pins, squeezed them to make a tighter fit on the sensor pin and pushed them back all the way into place and the fault code dissappeared. i cannot understand how previously soldering the wires direct to the sensor did not work (tried this twice) but all sorted now. Unplug the electrical connection to the ac unit with the car on and then plug it back in. you might need an ac recharge from the stealership. if you do that have them put in new expansion valves or clean the current ones with throttle body cleaner spray or similar solution. The most common causes that hinders normal operation of air conditioning system on your audi a4 are dirty cabin air filter, refrigerant leak, dirty or clogged condenser, dirty or clogged evaporator, bad blower motor, defective compressor, faulty blend door actuator or any fault in the electrical system. The most common reason for your audi a4’s ac not blowing cold enough is low refrigerant levels, followed by a dirty evaporator or condenser issues (bad or clogged). refrigerant leak testing your a4’s ac system pressure can help determine if you are chasing a leak or if there’s another issue at work.
Error Codes Need Some Help Audiworld Forums The most common causes that hinders normal operation of air conditioning system on your audi a4 are dirty cabin air filter, refrigerant leak, dirty or clogged condenser, dirty or clogged evaporator, bad blower motor, defective compressor, faulty blend door actuator or any fault in the electrical system. The most common reason for your audi a4’s ac not blowing cold enough is low refrigerant levels, followed by a dirty evaporator or condenser issues (bad or clogged). refrigerant leak testing your a4’s ac system pressure can help determine if you are chasing a leak or if there’s another issue at work. The most common reasons an audi a4 ac isn't working are a refrigerant leak, an electrical climate control issue, or a problem with the air conditioning compressor. Basic air conditioning troubleshooting is really pretty simple. your air is not working, or not working well. blows cold sometimes, or just doesn’t get cold enough or not at all. which is it? first, if its blowing cold, but then stops. I just got an a4 and found the ac doesn't work, i thought it might have been low on gas so i got some and the when i went to refill it the pressure gauge showed the pressure was at 100psi. the instructions said to take it into the garage if it was this high.