The air condition on my 1998 528i is not functioning properly. Sometimes it cools and some times it does not. I would like to diagnose and see if I can fix the problem before sending to the shop. So, any help is greatly appreicated.
Here are a couple of clues:
1. I hear "gurgling" or whirring noise after a few minutes of operation. Any idea which part is making that noise (compressor, condenser, etc.).
2. When I start the air con, I notice a smell akin the wiper washing fluid. Is that an indication of some major coolant issue?
3. Last Winter, I changed the heat resistor thingy (the thing with a dozen or so spikes) to fix my heating problem. Could that be related?
Thanks so much for your help.