What is the reason for cleaning the sensor when BMW DSC fails?
2 Answers
The reason for cleaning the sensor when BMW DSC fails is a malfunction in the vehicle stability system. It is necessary to reduce the speed of the car to avoid excessive steering and turning, and to take it to a repair shop for maintenance. Taking the 2021 BMW 320i as an example, it is a mid-size car with body dimensions of: length 4719mm, width 1827mm, height 1459mm. The 2021 BMW 320i is equipped with a 2.0t turbocharged engine, with a maximum horsepower of 156ps, a maximum torque of 250nm, a maximum power of 115kw, and is paired with an 8-speed automatic manual transmission.
As a seasoned BMW driver, I've encountered the frustrating issue of the DSC light coming on and malfunctioning multiple times. This is usually related to the wheel sensors, such as when the wheel speed sensor gets dirty or clogged with metal shavings or mud, causing inaccurate signals and false system failure alerts. Cleaning the sensors often fixes the problem, and the reason is simple: the sensors are like the car's eyes—if they're covered in dust, they can't clearly read the wheel rotation data, leading the system to mistakenly deactivate the DSC function due to perceived instability. This is especially common after long drives in rainy, snowy, or dusty conditions. I've personally cleaned them a few times using a soft cloth and alcohol, and the system returned to normal, saving me a lot on repair costs. I recommend checking the sensor positions during regular maintenance, especially near the wheels, to prevent dirt buildup, as it can be a major hazard. If the car starts to skid while driving, it can be dangerous, so timely maintenance ensures safety.
