What brand is the MG transmission?
2 Answers
MG transmissions are jointly developed by SAIC and General Motors. The TST dual-clutch transmission is a dry dual-clutch transmission (DCT) type, which eliminates the need for related hydraulic systems, making it lighter overall compared to wet dual-clutch transmissions. Additionally, the dry clutch itself offers high torque transmission efficiency, significantly improving fuel economy. MG transmissions use either a 6-speed manual transmission or the new-generation 7-speed DCT280 wet dual-clutch transmission. A manual transmission is a gear-shifting device used to alter the engine's speed and torque delivered to the drive wheels, enabling the vehicle to achieve different traction forces and speeds under various conditions such as starting from a standstill, climbing hills, turning corners, and accelerating. When using MG transmissions in daily driving, the following points should be noted: Do not delay transmission fluid changes for extended periods. Although many modern vehicles feature maintenance-free transmission fluid, "maintenance-free" does not mean it never needs replacement. Prolonged failure to change the transmission fluid can damage internal components such as bearings and the housing. Avoid prolonged coasting in neutral. While many experienced drivers coast in neutral when driving manual transmission vehicles, doing so in an automatic transmission can cause overheating and produce a noticeable jolt when shifting back into Drive (D). Never shift into Drive (D) or Reverse (R) before the vehicle has come to a complete stop. Many drivers, aiming for "smooth" operation, shift into reverse while the vehicle is still moving, which can severely damage the transmission gears and lead to issues like gear grinding over time. Avoid frequently using Drive (D) for steep hill climbs. On steep inclines, automatic transmission vehicles may overheat due to high load or shift too early, resulting in insufficient climbing power. In such cases, use manual mode to lock in lower gears or switch to sport mode to protect the transmission. Do not tow over long distances. If an automatic transmission vehicle breaks down, use a flatbed tow truck to move it onto the tow platform while the vehicle is in Neutral (N). Avoid using tow ropes or towing the vehicle directly.
I remember chatting with a technician at the 4S dealership during a maintenance visit, and we talked about the MG transmission issue. Currently, the transmissions in MG models under SAIC Motor mainly fall into three categories: first, the self-developed dual-clutch transmissions by SAIC, like the DCT280 commonly found in the MG6; second, the Aisin automatic transmissions purchased for some SUV models; and third, the CVT continuously variable transmissions used in lower-end models. The specific transmission in your car depends on the year and model. For example, the 2022 MG5 uses a CVT, while the new MG7 comes with a 9AT. It's best to check the configuration sheet before buying, as there can be significant differences between models. In practical use, the self-developed dual-clutch shifts crisply but can be a bit jerky at low speeds, while the Aisin transmissions are smoother. Don't forget to change the transmission fluid on time—the 4S dealership recommends servicing it every 60,000 kilometers, or the valve body might develop issues.
