Why is my Audi Q5 heater not working?

The AudiQ5 heater not working causes are a faulty heat coil and a broken thermostat. You will come across a few annoying noises from the air conditioner. Loose mounting bolts will become a nuisance. A bad compressor will get noisy. Too much Freon will make this happen. These sounds need to be look into quickly or You will lose Your mind. Being a sweaty mess is never a good time. That's why the air conditioner needs to be functioning. You will face issues with this part at some time. The motor might become faulty. An inaccurate thermostat could come up. A nasty odor from the vents will cause issues with Your comfort. A fan might become loose. A Freon leak will cause You to sweat.