What is the method to cancel the speed limit on a Mercedes-Benz?
2 Answers
The method to cancel the speed limit on a Mercedes-Benz is: On the left side of the steering wheel, there is a thin lever; push it forward towards the front of the car to deactivate the speed limit. Mercedes-Benz models include: Mercedes GLS, Mercedes GLE, Mercedes GLC, Mercedes GLA, Mercedes CLA, etc. Taking the 2021 Mercedes GLS as an example, it is a mid-to-large-sized car with body dimensions of: length 4988mm, width 1890mm, height 1424mm, and a wheelbase of 2939mm. The 2021 Mercedes GLS is equipped with a 1.5T turbocharged engine, delivering a maximum horsepower of 184PS, maximum torque of 280Nm, and maximum power of 135kW, paired with a 9-speed automatic transmission.
I've driven a Mercedes for ten years, and removing the speed limiter should be approached with caution. The factory-set speed limit on Mercedes is designed to protect the engine and transmission, with European cars typically limited to around 250 km/h. If you really want to unlock it, you'll need to flash the ECU program, such as visiting a professional tuning shop to rewrite the parameters of the onboard computer using Benz-specific Star Diagnosis equipment. However, doing this may void your warranty, and you'll also need to upgrade the tires and braking system. More importantly, speeding is illegal—just because the Autobahn in Germany has no speed limit doesn't mean you can do the same domestically. Once, I helped a friend tune a C63, and just reinforcing the brake calipers cost over 30,000 yuan, so it's really not worth the hassle unless it's for track days.
