Should the Engine Be Turned Off for Self-Service Car Wash?
2 Answers
Automatic car wash does not require turning off the engine. Here are some precautions regarding automatic car wash: Car Settings: When entering an automatic car wash, first set the car to neutral gear, do not use the handbrake or foot brake. Once inside the automatic car wash, avoid moving the steering wheel randomly or performing any operations on the vehicle, as the external washing equipment may affect the car. Close Windows and Doors: Ensure all windows and doors are closed. Drive the left wheel onto the conveyor belt, shift into neutral without turning off the engine, do not pull the handbrake, turn off the automatic headlights and windshield wipers, and fold the side mirrors on both sides before entering to prevent damage from external pressure.
From my own experience, you must turn off the engine when doing self-service car washing! Last time, a friend of mine didn’t turn off the engine before spraying water, and the water nearly damaged the catalytic converter after flowing into the exhaust pipe. Washing the car while it’s idling can cause cold water to suddenly splash onto high-temperature engine components, potentially leading to deformation or cracks. Moreover, when you bend down to clean the rims or front bumper, accidentally touching the gear shift could cause the car to move suddenly, which is extremely dangerous. Also, the high pressure from the car wash gun might splash onto electrical connectors in the engine bay, risking a short circuit. Now, every time I go to a self-service car wash, I first shift to P, engage the handbrake, turn off the engine, and put the keys in my pocket before starting—this ensures both safety and vehicle protection.
