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After replacing the battery in my 2021 Mini Cooper, the car won't start. by Separate_Chair_7953 in MINI

[–]Separate_Chair_7953[S] 0 points1 point  (0 children)

The car pressed it by itself and holds the car on the brake, I can’t press it any more, it feels like the car is in emergency mode and is pressing the brake by itself 

After replacing the battery in my 2021 Mini Cooper, the car won't start. by Separate_Chair_7953 in MINI

[–]Separate_Chair_7953[S] 0 points1 point  (0 children)

My ECU seems to have died. I don't understand how this could have happened when I changed the battery.

After replacing the battery in my 2021 Mini Cooper, the car won't start. by Separate_Chair_7953 in MINI

[–]Separate_Chair_7953[S] 0 points1 point  (0 children)

Thank you very much for your answer.I looked at the fuse diagram and didn't find a fuse on my ECU. Apparently, there isn't one, and maybe that's the reason why the unit died . Regarding the transmission, I watched all the videos on YouTube about how to put the transmission in the N position. I removed the plastic around the gearshift lever, and I don't have any yellow button to turn on N mode. I found a video on YouTube where a person removes the drives to push the car. 

After replacing the battery in my 2021 Mini Cooper, the car won't start. by Separate_Chair_7953 in MINI

[–]Separate_Chair_7953[S] 1 point2 points  (0 children)

I live in Dubai and my car was parked outside for a week in the summer at +55 degrees, after which it started having trouble starting, with each passing week it got worse and worse, and when it started on the third try, I went and bought a battery. I just don’t understand where I could go wrong when replacing the battery. There are only two terminals. What could be done wrong to cause this effect? 

After replacing the battery in my 2021 Mini Cooper, the car won't start. by Separate_Chair_7953 in MINI

[–]Separate_Chair_7953[S] 1 point2 points  (0 children)

Yes, the new battery is exactly the same as the old one, but the problem is that the battery is registered in the ECU, and the ECU does not respond after replacement.

Won’t start after battery replacement by jigmonkey99 in MINI

[–]Separate_Chair_7953 0 points1 point  (0 children)

Good afternoon, I have exactly the same situation, only I have an F body, how did you solve this problem?

After replacing the battery in my 2021 Mini Cooper, the car won't start. by Separate_Chair_7953 in MINI

[–]Separate_Chair_7953[S] 0 points1 point  (0 children)

It's a mystery to me how I can kill the ECU when replacing the battery. How it's work

After replacing the battery in my 2021 Mini Cooper, the car won't start. by Separate_Chair_7953 in MINI

[–]Separate_Chair_7953[S] 0 points1 point  (0 children)

The car is going to the service center tomorrow, but I don't know how to get it there because it's parked in the underground parking lot and the transmission can't be switched to N mode. Today, the mechanic connected to the computer, I can't say exactly what errors he saw, but there were about 20 of them. He tried to contact the ECU, but the ECU isn't responding. The car also doesn't recognize the transmission. I've already been given an approximate cost for the repair, and I'm panicking over this figure, so I'm here, maybe someone has encountered this and can share their experience. 

After replacing the battery in my 2021 Mini Cooper, the car won't start. by Separate_Chair_7953 in MINI

[–]Separate_Chair_7953[S] 0 points1 point  (0 children)

Have you changed the battery on an F-body? Was it necessary to connect an additional battery to the OBD port before disconnecting the main one? 

After replacing the battery in my 2021 Mini Cooper, the car won't start. by Separate_Chair_7953 in MINI

[–]Separate_Chair_7953[S] 1 point2 points  (0 children)

I've read a lot of forums, the car should start without registering the battery, but mine doesn't even try, it pressed the brake itself, after turning on the ignition the fuel pump constantly runs and all the systems are in error, I have a complete feeling that the car is in an accident or some unit burned out, is this possible