Sudden acceleration (general issues) (split from MG4-specific thread)

[osjustka]

Has anyone experienced the car accelerating fast without warning?
I’ve just tried to park, took my foot off the accelerator and the car shot forward. Just checked and it has hit the parking bollard, denting the front bumper a little.
Did the ACC kick in?
Felt it did this earlier too.
Another scary experience. I’m shaking.

It happened to me today with my 2 years old Citroen eC4 while parking, exactly the same situation as you described. The car is in the service place, they are running the full diagnostic on it, but the people in the service place 'politely' suggested that I probably had just mistaken the gas for the brake pedal . I drive every day, about 100km per day (62 miles), and I do not believe this was the case. Fortunately, it happened on a totally free parking lot. The car suddenly shot forward, ran over a 50-75cm grass-covered bump and stopped in a trench.

 

[Nelly]

HPpened to me in my MG EV on 6th April. Twice and the first time it rammes into the back of a ford transit. I got it back from repair shop on Tuesday and it has now gone in for full diagnostics tomorrow. Waiting with baoted breath. The car was dangerous.

 

[DaevM]

It happened to me today with my 2 years old Citroen eC4 while parking, exactly the same situation as you described. The car is in the service place, they are running the full diagnostic on it, but the people in the service place 'politely' suggested that I probably had just mistaken the gas for the brake pedal . I drive every day, about 100km per day (62 miles), and I do not believe this was the case. Fortunately, it happened on a totally free parking lot. The car suddenly shot forward, ran over a 50-75cm grass-covered bump and stopped in a trench.

Do you have any 'assists' active as a matter of course?

 

[osjustka]

Do you have any 'assists' active as a matter of course?

Not to my knowledge (definitely "adaptive cruise control with stop & go function" was off, "highway driver assist" was off)

 

[Nelly]

HPpened to me in my MG EV on 6th April. Twice and the first time it rammes into the back of a ford transit. I got it back from repair shop on Tuesday and it has now gone in for full diagnostics tomorrow. Waiting with baoted breath. The car was dangerous.

Wow. 8 fault codes on the diagnostics. Too much to list but Autonomous emergency braking vuknerable road users aeb vru didabled due to invalid data received.

 

[osjustka]

This happened to me on Saturday. Pulled in about 10ft away from the van in front. Put my foot on the brake to stop the car and it just shot forward and didn't come to a stop until it hit the van. I have informed MG as when I was driving it back home down a steep hill with my foot on the brake it did it again. No one in front of me this time.
Please dont tell me I had my foot on the accelerator as I had a witness in the vehicle with me. If I had my foot on the accelerator the acc would have come into play and stopped the vehicle.
The impact was massive but the airbags didn't deploy.
Total failure of acc and airbags.

You were so lucky you had someone else in the car with you as a witness.

 

[osjustka]

It happened to me today with my 2 years old Citroen eC4 while parking, exactly the same situation as you described. The car is in the service place, they are running the full diagnostic on it, but the people in the service place 'politely' suggested that I probably had just mistaken the gas for the brake pedal . I drive every day, about 100km per day (62 miles), and I do not believe this was the case. Fortunately, it happened on a totally free parking lot. The car suddenly shot forward, ran over a 50-75cm grass-covered bump and stopped in a trench.

Update: I received the info back from the service, that the car' system did not record any crash, and that the system is fully functional. I will surely report the accident to Citroën, but not sure for how much longer situations like this will take place before the 'bug' gets fixed.

 

[Ian Key]

@Rolfe Can we either drag this back to MG4 owners and drivers or move this thread to the General Chat forum?

 

[Rolfe]

I've split the non-MG4 posts into a new thread, talk about sudden acceleration in any car you like in here.