DS3 Automatic Transmission Fault

Hi, I have a 2014 DS3 diesel with 159628 km. The automatic transmission's parking position seems defective. The engine won't start, the check engine light is on, the gearbox slips, and the error memory is full. I think it might be the control unit. Has anyone else had this issue? Any ideas?

4 comment(s)

I've had something similar with my DS3. I haven't tracked the mileage as closely. The engine, check engine light, and gearbox issues sound familiar. Did you check the transmission sensor? It might be worth a look before replacing the control unit.

Thanks! The transmission sensor did cross my mind. Can you tell me more about your experience with that? What tests or observations made you think it was the sensor?

Sorry for the delay. My symptoms were very similar, so I suspected the sensor. I don't have the equipment for detailed diagnostics, but the symptoms pointed to a faulty sensor. Given the error codes and shifting issues, I'd recommend a workshop for a thorough check. It could be a simple fix or a bigger problem. A repair cost of 1000€ sounds about right.

Thanks for the advice! I took it to a workshop, and they confirmed it's a defective control unit. The repair bill is 1000€, like you said. Your help sped up the diagnosis and prevented more damage. Thanks again!

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