How to Remove the 120 km/h Speed Limit on Haval M6?
4 Answers
Method to deactivate the 120 km/h speed limit on Haval M6: To cancel the speed limit after activation, press the speed limit button again, which is located on the right side of the steering wheel. Use the up and down buttons to locate the speed limit alarm settings, enter the menu, and select cancel to turn it off. Below is some relevant information about the Haval H6: 1. Introduction: The Haval M6 is a compact SUV under the Haval brand, positioned as a value-for-money family car. On July 10, 2019, Great Wall Motors officially announced the launch of the 2019 Haval M6, which is equipped with a 1.5T turbocharged engine that meets the China VI emission standards, featuring high configuration, spacious interior, and strong safety. In December 2020, it was included in the "2020 China Market Top 100 Fuel Vehicles" list. 2. Interior: The interior continues the classic design style of the Haval family. The wing-shaped center console, designed with the concept of "simplicity and practicality," perfectly matches the classic three-spoke multifunction steering wheel. The intelligent combination instrument panel is paired with an 8-inch LCD central control display screen, making all functions easily accessible and reflecting humanized care.
When it comes to removing the 120 km/h speed limit on the Haval M6, I must emphasize that this is really not recommended. The manufacturer sets this speed limit for safety and durability, and forcibly removing it can easily lead to accidents. Technically speaking, a common method is to reprogram the ECU to modify parameters, but this requires professional tools and knowledge, such as connecting to the OBD port to input codes and adjust the speed limit value. However, this operation carries significant risks, potentially causing engine overheating, transmission damage, or a sharp increase in fuel consumption. From my experience, many owners who tried this ended up with their cars triggering alarms or malfunctions, leading to high repair costs. Moreover, this is considered illegal modification under the law, and insurance won’t cover it. I recommend prioritizing regular vehicle maintenance, checking tire pressure and the braking system. Safe driving is far more important than chasing speed—after all, a car is a means of transportation, not a toy for the racetrack.
Removing the 120 km/h speed limit on the Haval M6 essentially comes down to modifying the ECU software. As someone who frequently works on cars, I've seen many such cases. The principle involves rewriting the control unit program by connecting to the diagnostic interface to bypass the factory restrictions. This process requires specific software, like the toolkits used by tuning shops, but doing it yourself is prone to errors. If the wrong code is flashed, the engine might trigger a fault light or suffer power loss. I must warn everyone that while this method is feasible, it affects the car's stability test results and significantly increases the risk of unstable steering at high speeds. It's better to consult a reliable professional shop and remember to upgrade the cooling system and tires to ensure durability. In the long run, the speed limit protects the engine's lifespan, and tampering with it may do more harm than good. Sometimes, it's better to avoid the hassle and just drive safely.
Removing the speed limit on the Haval M6 should be approached with caution. The actual operation involves ECU tuning to alter the preset values of the speed control module. However, after modification, the engine load increases, which may lead to abnormal noises or malfunctions. I recommend against tampering with it, as the speed limit is set for safety reasons. If you must proceed, try contacting after-sales service or a professional modification workshop.
