Brake and drive control systems malfunction

Got this message today. Also the brakes were locked and wouldn't release until the car sat for a while.

Initially I thought it was my transmission as the car didn't want to upshift and when I released the gas it would just slow down very quickly and stop. Few times of that and I got the message. So any ideas???

Any ideas on what part I might have to order????



All help is GREATLY appreciated.

I'd start by checking for codes. At least get the generic codes with a basic scanner. But, the manufacturers codes are what you want.

Originally Posted by All-Or-Nothing

Got this message today. Also the brakes were locked and wouldn't release until the car sat for a while.

Initially I thought it was my transmission as the car didn't want to upshift and when I released the gas it would just slow down very quickly and stop. Few times of that and I got the message. So any ideas???

Any ideas on what part I might have to order????



All help is GREATLY appreciated.

Does your car have that hill assist option? Once you are on an incline the brake is applied for a couple of seconds until you press the gas. This is on the manual cars but not sure if it might be on the auto cars as well. I could see where a malfunction in a gyro sensor could make the car think it's on an incline and is applying the brake. Just putting this out there because I am not sure what else could be causing that problem.

That sounds like your calipers could be locking up, or possibly your brake lines might be swelling up & locking the calipers. Have you been working on the brake system lately?

Whatever is is, it sounds bad. Never seen this error mentioned before. I would get a mechanic to scan for codes. Could be something to do with the ABS/traction control module too.

Hi ! there is a default position in the brake control function where you are given minimum bake assist control, but as you say it is on all for corners and you have a transmission error, I cannot think of any module that controls both, so follow Yorgi's advice and take or have it towed to a dealer......+1

I don't really have a BMW dealer option here. I am thinking about just ordering a new ABS module because it seems to me like it may be ready to die on me. However there is always the chance that Battery issues are causing the problem.

Car seems back to normal now but I only went back and forth in the driveway.

Here is a picture of the fault I was getting.




As I said there wasn't reduced braking as it seemed to lock up all the brakes. Pedal went brick hard. Steering stayed normal. No transmission faults or errors, but I believe it didn't want to upshift because it was probably thinking I was standing on the brakes. 5 mins of sitting and all was well again.

I would not go randomly ordering an ABS control unit. If it is not battery related, you could also have something simple like a wheel speed sensor gone bad, which is what the ABS unit relies on for input.

I'd agree, don't go ordering expensive parts needlessly. If you have no access to a dealer (I believe you are based FAR far away from home too from previous posts) you might be as well to get yourself equipped with a diagnostic kit based on INPA or DIS v57.

Originally Posted by Yorgi

I would not go randomly ordering an ABS control unit. If it is not battery related, you could also have something simple like a wheel speed sensor gone bad, which is what the ABS unit relies on for input.

Is there anything else that would cause the brakes to all lockup???

Originally Posted by rebel.ranter

I'd agree, don't go ordering expensive parts needlessly. If you have no access to a dealer (I believe you are based FAR far away from home too from previous posts) you might be as well to get yourself equipped with a diagnostic kit based on INPA or DIS v57.

Yes I definately need to get my own diagnostic tools.

Dsc pump can cause that. I had a faulty harness going to mine in the 7 and had same thing happen.

Originally Posted by MakaveliFaison

Dsc pump can cause that. I had a faulty harness going to mine in the 7 and had same thing happen.

Thanks I will look into that.

Drove the car today. No messages, no faults on the screen.

The brakes "seemed" softer than before. Brake pedal had a really soft squishy kind of feeling. Didn't do any abrupt stops or anything but it sure doesn't feel as solid as before. Could just be in my head.