What are the common transmission faults in the Sagitar?
3 Answers
The common transmission faults in the Sagitar are jerking, impact, and slipping issues. Fault causes: 1. Contamination and blockage: Persistent contamination and impurities inside the transmission, especially when they accumulate in the valve body, can form blockages, preventing effective regulation of oil pressure and leading to jerking, impact, and slipping problems. 2. Overheating: High temperatures can degrade the quality and friction characteristics of automatic transmission fluid, increasing friction and wear, which results in transmission noise. Additionally, sludge (impurities or contaminants) can form inside the transmission (e.g., in the valve body), causing jerking and impact. If the temperature exceeds 120°C, rubber sealing materials begin to harden, eventually leading to leaks and reduced hydraulic pressure. At even higher temperatures, the transmission starts to slip, and slipping further raises the temperature, creating a vicious cycle.
My Sagitar has been running for 6 years, and the most common transmission issue is the low-speed jerking, especially during city traffic when it shifts from second to first gear—there's always that noticeable clunk. Last year, it also had trouble engaging reverse gear during cold starts, and after inspection, it turned out the dual-clutch fork was damaged. Actually, most problems stem from the mechatronic control unit—my friend's car had to replace the entire module because of this. Another common issue is oil leakage due to aging transmission seals, so I have to get it checked every two years. The most frustrating part is that buzzing noise, which is just nerve-wracking. I’d recommend older car owners to get a comprehensive inspection every 50,000 kilometers, especially for critical components like the hydraulic system and clutch plates.
Speaking of the Sagitar's transmission, my 2016 model with the dry dual-clutch has so many pain points. Within two years of being new, it started experiencing power interruptions—stepping on the gas would take two seconds before any response. The dealership diagnosed it as needing an ECU upgrade, but after the upgrade, it began jerking. The most frustrating part is the persistent shaking during low-speed follow-up driving, like sitting on a massage chair. Now at 80,000 km, there's difficulty shifting gears, and the repair shop says the clutch plates need replacing. These issues are especially noticeable in summer, likely due to overheating. Regular transmission fluid changes help somewhat, but don't address the root problem.