Why is DCT a problem?

The issues with dual-clutch transmissions (DCT) mainly centre on the adaptability between their structural characteristics and usage scenarios. Their core problems stem from the working principle: while the alternating operation of two clutches enables fast gear shifts and fuel efficiency (saving about 15% fuel compared to traditional automatic transmissions), the mechanical clutch design leads to overheating due to frequent semi-engagement in congested road conditions. Dry DCTs, in particular, are more prone to jerking (especially noticeable during 1-2 gear shifts) and abnormal noises (such as the "clicking" sound from worn clutch plates) due to the lack of heat dissipation mechanisms. Long-term overheating may trigger a protection mode or even damage synchronizers or gear sets, resulting in high maintenance costs (some models require assembly replacement). It is recommended that owners avoid prolonged low-speed creeping, regularly replace specialized transmission fluid (approximately every 60,000 kilometres), and promptly address any abnormal jerking or noises.