How to Turn on the Heating in Audi A4 Air Conditioning?
3 Answers
Audi A4 air conditioning heating activation method: 1. After starting the car, wait approximately 8-15 minutes for the water temperature to reach normal operating temperature, then you can turn on the heating. 2. Adjust the air conditioning circulation mode to internal circulation and switch to heating mode. 3. Do not turn on the AC switch because the heating system utilizes the car's own heat cycle, which saves energy. 4. Adjust the air conditioning level to a suitable setting and direct the air vents. Additional information: 1. During the use of heating, it is not advisable to turn on the heating immediately after entering the car. When the car is in a cold start state, the engine's water temperature is very low. Turning on the heating in this state will not only fail to raise the temperature quickly but will also slow down the warming process and increase the engine's burden. 2. The correct approach is to warm up the car first. Wait until the temperature gauge reaches the middle position before using the heating, and set the air circulation to external circulation initially. After a while, switch to internal circulation to rapidly increase the temperature inside the car.
When I usually drive my Audi A4, I find heating quite simple. After starting the vehicle, first look at the air conditioning panel on the center console—there's a temperature knob. Turn it to the red zone on the right for heating. If you don’t want to adjust it manually, press the AUTO button, and the system will automatically blow warm air. Remember, the engine needs to run for a few minutes until the coolant temperature rises before hot air starts coming out, so wait a bit when starting a cold car in winter. I’ve also encountered weak heating, which might be due to the engine not reaching operating temperature or a dirty cabin air filter needing replacement. Regular maintenance checks help ensure effectiveness. The car heats up pretty quickly, warming the interior in no time, especially during traffic jams—it’s cozy and comfortable. It’s best not to accelerate aggressively right after starting; letting the system stabilize ensures peace of mind.
As a long-term owner, I have a set of tricks for heating in the Audi A4. After starting the car, directly turn the temperature knob to the highest setting, which is usually displayed numerically on the A4. At the same time, press the recirculation button to keep the hot air locked inside for quick warming, saving fuel and being efficient. The AC might blow cold air initially when it's cold; just wait a few seconds for the system to self-check and switch over. The key is to let the engine run for a few minutes to allow the coolant to circulate and generate heat, otherwise, it's all for nothing. I always check the dashboard water temperature gauge to ensure it reaches the middle, then I'm reassured. It's recommended to regularly clean the AC to avoid odors and keep the air inside the car fresher.
