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München – Drivers of vehicles equipped with dual-clutch transmissions (DCTs) are being warned by the ADAC, Germany’s largest automobile club, about six common driving errors that can lead to costly repairs. The warning, issued on February 22, 2026, comes as automatic transmissions increasingly replace manual gearboxes in European vehicles.
Even as traditional automatic transmissions utilize a torque converter for smooth, albeit slightly less efficient, power delivery, DCTs employ two mechanical clutches to alternate between odd and even gears. This system enables rapid gear changes with reduced power loss, making it popular among manufacturers like Volkswagen (branded as DSG), Porsche (PDK), Audi (S tronic), and Hyundai/Kia (DCT). However, the ADAC cautions that this efficiency comes with a sensitivity to improper operation.
According to an ADAC expert featured in a YouTube video, one frequent mistake is applying insufficient brake pressure while stationary. Allowing the clutch to partially slip while at a stop can generate heat and accelerate wear. The ADAC recommends fully depressing the brake pedal or shifting to neutral and engaging the auto-hold function during extended stops.
Similarly, creeping forward incrementally at traffic lights, rather than coming to a complete stop and then accelerating, places undue stress on the clutch. Each small stop and start requires the clutch to engage and disengage, accumulating wear without gaining significant forward progress.
The ADAC also advises against maneuvering while the vehicle is still rolling. For example, shifting into drive while the car is still moving backward during parking requires the clutch to simultaneously decelerate and accelerate, increasing wear. This is particularly problematic on inclines or when towing a trailer.
Another potential issue arises immediately after starting the engine. Engaging drive and accelerating instantly can damage the transmission, as it needs time to build oil pressure, especially in cold weather. The ADAC suggests waiting a few seconds after starting the engine before selecting a gear and driving off.
Frequent leverage of the manual shifting mode, particularly at high engine speeds, can also strain the clutches. While occasional manual control for overtaking or navigating downhill stretches is acceptable, the ADAC recommends allowing the transmission to manage gear changes in automatic mode for everyday driving.
Finally, neglecting scheduled transmission fluid changes can lead to serious damage. The ADAC expert recommends consulting the vehicle’s service manual for the manufacturer’s recommended oil change interval, typically between 60,000 and 120,000 kilometers. While the cost of an oil change can range into the hundreds of euros, it can prevent significantly more expensive repairs down the line. The ADAC also suggests considering a fluid change every 100,000 kilometers even if not explicitly required by the manufacturer.
Sebastian Oppenheimer, a journalist with IPPEN.MEDIA who reported on the ADAC warning for fr.de, emphasized that mindful driving habits are crucial for extending the life of a DCT. He noted that seemingly minor actions can have a significant impact on the longevity and reliability of the transmission.