What does the M warning light indicate on the Chery EQ?

[StEmiliano]

The appearance of the M warning light on the Chery EQ indicates a motor controller malfunction, requiring immediate inspection and repair at a 4S dealership. The Chery EQ is a pure electric vehicle under Chery Group, with dimensions of 356416201527mm and a wheelbase of 2340mm. More details about the Chery EQ are as follows: 1. Powertrain: Equipped with a ternary lithium battery paired with a permanent magnet synchronous motor, delivering a maximum power of 42kW and maximum torque of 150Nm. It features a single-speed continuously variable transmission. With a full charge (22.4kWh), it offers a maximum range of approximately 200km (180km with air conditioning on). 2. Charging: The 0-50km/h acceleration time is 5.5 seconds, with a top speed of 100km/h. Fast charging (using a dedicated charging station) takes 30 minutes for a full charge, while slow charging (using a standard 220V household power supply) requires 8-10 hours for a complete charge.

[VonAlex]

I've driven the Chery EQ several times. Whenever that M warning light comes on, it usually indicates an issue with the motor system, such as loose battery connections or controller malfunction. Like the last time I encountered it, the light came on due to excessively high battery temperature. If restarting doesn't help, you need to check whether the wiring harness connectors have aged or corroded, especially since driving frequently in summer can easily trigger this. Such warnings in electric vehicles should never be ignored as they relate to driving safety. Continuing to drive forcefully may lead to breakdowns or motor damage. My suggestion is to try turning off and restarting the vehicle immediately. If the light remains on, promptly contact a 4S shop or professional repair center for diagnosis. They'll use tools to read the fault codes and identify the cause. Don't attempt disassembly yourself to avoid exacerbating the damage.

[LaLily]

From a technical perspective, the M warning light on the Chery EQ mostly indicates abnormalities in the motor drive unit, which may involve inverter failure, insufficient cooling, or sensor malfunction. For instance, motor overload or a faulty position monitor could trigger it. I've seen cases where insufficient coolant caused the light to come on, and adding coolant resolved the issue. Another friend's car required a system upgrade due to a software bug. During diagnosis, it's best to use an OBD scanner to read real-time data, but avoid risking prolonged driving to prevent overheating. Regular maintenance, such as cleaning the electric drive module and checking battery health, can significantly reduce risks.

[Fritz]

I found the safety risk to be quite high. When the M light is on in the Chery EQ, it must never be ignored as it indicates potential failure or malfunction in the drive system. Continuing to drive could risk stalling. I would immediately pull over, turn off the engine, and check for basic issues like debris stuck in the tires or loose connections. However, in most cases, professional assistance is required—don’t attempt repairs yourself. It’s more reliable to directly call the service hotline for towing assistance, especially since driving at night particularly requires functional lighting.