This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.
So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.
Hello. I have a 2009 BMW M3 with the dct transmission. I am experiencing significant delays when down shifting from one gear to a lower gear. The problem occurs when you slow down, like for a turn, but do not come to a complete stop. The dct transmission seems to have a serious problem figuring out what gear to select because when you step on the gas to accelerate, there is a very significant delay in the power engaging. I would say about 2-4 seconds. By this time, I am really stepping on the gas pedal. The transmission finally picks a gear, which results in the car suddenly lurching forward, sometimes engaging the anti-skip control. This problem becomes most apparent when making a turn into on-coming traffic, slowing down to around 10-15 mph. After the turn, the car is positioned in the traffic lane, but I have no power to accelerate into the flow of traffic. The oncoming cars are now closing in on your car at a fast rate, and you're basically stuck.
- Ventura, CA, USA
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- Ventura, CA, USA