How is the SAIC dry dual-clutch transmission?
3 Answers
SAIC's dry dual-clutch technology is quite mature, but there are some minor issues. The SAIC dry dual-clutch transmission may experience severe overheating when frequently shifting between first and second gears in traffic jams. The driving techniques for dry dual-clutch transmissions are as follows: 1. Light throttle and gentle start: The gentle start is because the original design allows the dual-clutch to output maximum torque in second gear, while first gear lacks sufficient power. Therefore, you should wait until the throttle smoothly transitions to second gear before pressing the accelerator further. 2. Shift to neutral when parking: The principle of the dual-clutch is similar to that of a manual transmission. When parking, the clutch is not completely disengaged. Due to the purely mechanical connection principle, when the brake is pressed for a long time with the gear engaged, the energy has nowhere to go, causing some wear on the clutch disc.
As a frequent driver of Roewe vehicles, I've experienced SAIC's dry dual-clutch transmission and found it quite suitable for urban commuting, with significantly lower fuel consumption—saving one or two liters per 100 kilometers. However, during traffic jams or frequent stop-and-go situations, it can feel a bit jerky, occasionally with rough gear shifts, like being nudged. Over long-term use, I've also noticed chassis cooling issues, especially in summer—prolonged traffic congestion can trigger engine overheating alarms, requiring a trip to the repair shop for inspection. On the highway, though, it runs smoothly, with quick power response and effortless overtaking. Overall, this transmission suits environments with less traffic congestion. For daily driving, regular maintenance is advisable—such as checking clutch plate wear every two years—to extend its lifespan. SAIC has improved in this area compared to earlier models, reducing jerkiness, but don’t expect perfection; after all, it’s a dry design with inherent cooling limitations.
As an automotive enthusiast, after studying the principles of dual-clutch transmissions, I find SAIC's dry-type variant to be a technically cost-effective choice. Its simple and compact structure saves space and fuel, making it suitable for compact family cars. However, the dry design means the friction plates are in direct contact, relying on air cooling for heat dissipation, which can lead to overheating, jerking, or even malfunctions in stop-and-go city driving. SAIC has optimized the control logic in models like the MG5 to mitigate these issues, but reliability still falls short of wet dual-clutch or traditional automatic transmissions. From a driving perspective, quick starts and fuel efficiency are highlights, but the jerking can be unpleasant. I recommend test-driving in congested conditions before purchasing to assess shift smoothness and understand long-term maintenance costs. Overall, it offers good value in budget cars, but don't expect comfort from it.
