Does leaving the air conditioning on when turning off the engine have any impact?
1 Answers
Leaving the air conditioning on when turning off the engine does have an impact, which includes: 1. If the air conditioning is not turned off when the engine is shut down, the compressor will start running together during the next startup, increasing the load on the motor; 2. Generally, it is not advisable to turn on the air conditioning when the engine is cold, as it may damage the engine; 3. Turning off the air conditioning about 2 minutes before shutting down the engine allows the cold air in the pipes to be discharged in time, avoiding mold and bacterial growth. For manual air conditioning systems, since the compressor switch and blower switch are both manual mechanical switches, the air conditioning will still operate when the vehicle is started next time. Moreover, when the key is turned to the ON position, powering the entire vehicle, the blower will also start running. The same applies to automatic air conditioning systems. Although automatic air conditioning does not have mechanical switches, it has a memory function. As long as the OFF button is not pressed when parking, the air conditioning will still operate when the vehicle is started next time, and the blower will also run when the key is turned to the ON position.
