[Good 4 2 reasons]

I have a 2024 produced in March 2024. I can confirm mine will also release the parking brake by simply pushing in the clutch, with the trans in neutral, no brake or throttle applied. This definitely does not seem correct. My 1200 mile break-in service is coming up, definitely planning on asking about it.

[Good 4 2 reasons]

Here it is doing it on mine. It did not take the parking brake away immediately after depressing the clutch to start the engine. It was subsequent clutch activations when it finally decided to take off the parking brake.

I am not sure what conditions need to be met for it to remove the parking brake hold, but it seems dangerous that it should do so without gear selection and or/ brake and throttle application.

https://youtube.com/shorts/1j9gEgCJsC8?feature=share

[RobM2]

I can't reproduce this on my 2024 MY built this month.

[RemoWilliams84]

Took my car in today for service. They are claiming no fault codes and it's operating as it should. I'm about to look through the manual to see if I can find something to prove them wrong.

[RemoWilliams84]

Originally Posted by Good 4 2 reasons

Here it is doing it on mine. It did not take the parking brake away immediately after depressing the clutch to start the engine. It was subsequent clutch activations when it finally decided to take off the parking brake.

I am not sure what conditions need to be met for it to remove the parking brake hold, but it seems dangerous that it should do so without gear selection and or/ brake and throttle application.

https://youtube.com/shorts/1j9gEgCJsC8?feature=share

Do you have a valve controller by chance? That's the only think I've done to the car that could even remotely affect anything.

[Good 4 2 reasons]

Originally Posted by RemoWilliams84

Do you have a valve controller by chance? That's the only think I've done to the car that could even remotely affect anything.

No valve controller. Only mods are coding a few things with bimmercode (mirror tilt, RR blinkers, red interior lighting).

I did call BMW Genius hotline yesterday and he suggested that it is was normal behavior, but I did not get the impression this guy knew how to even drive a manual. I am not inclined to believe that is safe operation. It makes no sense to release the car like that, with no brake application to hold the car, or throttle input to suggest you are driving off.

[RobM2]

Doesn't this behavior mean that the hill assist doesn't work for you?

That's a documented feature so not sure how someone can say this is "working as intended."

[RemoWilliams84]

Originally Posted by rlove

Doesn't this behavior mean that the hill assist doesn't work for you?

That's a documented feature so not sure how someone can say this is "working as intended."

Hill assist works fine because the car is in gear when you use hill assist. The problem is that pushing in the clutch while in neutral disengages the parking brake and the car starts rolling.

[RobM2]

Originally Posted by RemoWilliams84

Hill assist works fine because the car is in gear when you use hill assist. The problem is that pushing in the clutch while in neutral disengages the parking brake and the car starts rolling.

Maybe I'm missing something but you need to extend the clutch before you can put the car in gear, no? At no point in the clutch/shift flow should the parking brake disengage if you aren't applying throttle.

[RemoWilliams84]

Originally Posted by rlove

Maybe I'm missing something but you need to extend the clutch before you can put the car in gear, no? At no point in the clutch/shift flow should the parking brake disengage if you aren't applying throttle.

Correct. Just picked the car up and argued with the shop foreman for 10 minutes. He said it's operating as normal. He finally said yeah that is annoying and I said no it's a safety hazard. Got nothing from him. Gonna call bmw but I don't think it'll do a damn bit of good.

[Bret]

Originally Posted by RemoWilliams84

Took my car in today for service. They are claiming no fault codes and it's operating as it should.

Originally Posted by Good 4 2 reasons

I did call BMW Genius hotline yesterday and he suggested that it is was normal behavior, but I did not get the impression this guy knew how to even drive a manual. I am not inclined to believe that is safe operation. It makes no sense to release the car like that, with no brake application to hold the car, or throttle input to suggest you are driving off.

Originally Posted by RemoWilliams84

Correct. Just picked the car up and argued with the shop foreman for 10 minutes. He said it's operating as normal. He finally said yeah that is annoying and I said no it's a safety hazard. Got nothing from him. Gonna call bmw but I don't think it'll do a damn bit of good.

This is simply not safe. It may not seem like a big deal, but when someone is unaware of the condition, it's possible that it could result in injury, property damage or worse. You're really doing them a favor by bringing it to their attention. I'm loathe to get the government involved, but perhaps that possibility will motivate them to resolve the issue. I would kindly tell them that while I understand they're saying there isn't an issue, there is in fact a safety issue. If they don't escalate the issue to higher authorities at BMW, then I'll have no choice but to file a complaint with the NTSB. If they still don't do something about it, then file the complaint. Either way, something needs to be done about it.

[Good 4 2 reasons]

Originally Posted by Bret

This is simply not safe. It may not seem like a big deal, but when someone is unaware of the condition, it's possible that it could result in injury, property damage or worse. You're really doing them a favor by bringing it to their attention. I'm loathe to get the government involved, but perhaps that possibility will motivate them to resolve the issue. I would kindly tell them that while I understand they're saying there isn't an issue, there is in fact a safety issue. If they don't escalate the issue to higher authorities at BMW, then I'll have no choice but to file a complaint with the NTSB. If they still don't do something about it, then file the complaint. Either way, something needs to be done about it.

It's unbelievably unsafe. I'm going to file a safety complaint with NHTSA. Typically when I've reached my destination and come to a final stop, I clutch in and use the brakes to bring me to a final stop. I apply the parking brakes and shift into neutral (after shutting off the engine I'll shift back into 1st). If I haven't released the clutch pedal yet, when I do release the clutch pedal, it disengages the parking brake. There is no way this is the way it's supposed to operate. I played around even more today and determined simply pushing the clutch pedal in by 4 inches or so will release the parking brake immediately (again no gear, brake, or throttle input).

https://youtube.com/shorts/462aPDZdy...s9jdmVX0n0vTpI

[Bret]

Originally Posted by Good 4 2 reasons

NHTSA

That's what I meant, not the NTSB. It's hard to keep all the government alphabet gangs straight.

[RemoWilliams84]

I sent a message to bmw today. I'll probably do the same. That shop foreman had me fuming though.

[dienstag]

Just tried on my 2024 produced July, could not reproduce it. Definitely seems like a fault, that's not behavior I'd imagine anyone would want.

[aerobod]

Supra owners have had this problem. In more than one case it was related to using Bimmercode and one particular repeatable scenario was coding auto start/stop to disabled, that also affected the parking brake release on clutch activation. The discussion about that starts at this post: https://www.supramkv.com/threads/par...11#post-344774

[Good 4 2 reasons]

Originally Posted by aerobod

Supra owners have had this problem. In more than one case it was related to using Bimmercode and one particular repeatable scenario was coding auto start/stop to disabled, that also affected the parking brake release on clutch activation. The discussion about that starts at this post: https://www.supramkv.com/threads/par...11#post-344774

I'll definitely check this when I get home today. Thank you for the info.

[RemoWilliams84]

Originally Posted by aerobod

Supra owners have had this problem. In more than one case it was related to using Bimmercode and one particular repeatable scenario was coding auto start/stop to disabled, that also affected the parking brake release on clutch activation. The discussion about that starts at this post: https://www.supramkv.com/threads/par...11#post-344774

I'll look into that too. I definitely don't have it disabled. I know it remembers my last selection though.

[aerobod]

Originally Posted by RemoWilliams84

I'll look into that too. I definitely don't have it disabled. I know it remembers my last selection though.

There are some other scenarios in the Supra thread that have been caused by clutch modifications (and associated coding) and also corruption of the driver profile.

The parking brake release when just pushing in the clutch does seem to be a software configuration issue, which is not surprising, as grouped configuration elements vary by country/region, so partial configuration changes in a market that didn't have that element set to the changed value may have unintended consequences.

There is also a risk that aftermarket systems added to the car that use CANbus (or other system busses) could corrupt CANbus messages (for example by using the same ID as a BMW system), leading to core components to malfunction.

[Good 4 2 reasons]

I just got off the phone with the NHTSA investigator for vehicle defects. Awesome guy, he as a Zupra automatic and is familiar with Bimmercode and the discussions on the forums regarding this issue.

He wanted to know first if I had disabled start/stop. I am going to go home and make a list of Bimmercode changes, revert the start/stop (assuming I disabled it), and see if functionality returns. If it doesn't, I'll proceed to undo changes one by one to see if functionality returns.

Ultimately, he seemed to imply the parking brake changing behavior because of "innocuous" coding in Bimmercode would be something the manufacturer would need to warm customers not to use bimmercode because a faulty parking brake behavior like this is dangerous.

I'm shocked a government agency contacted me in less than 24 hours, with someone who was knowledgable, interested in hearing what I had to say, and has a genuine interest in solving the problem either through customer/manufacturer warnings or a software solution.

I do not have any clutch modifications or aftermarket systems installed. I'm going to make theses changes to Bimmercode tonight and report my findings to the NHTSA investigator.

[TallGibbs]

Originally Posted by Good 4 2 reasons

I just got off the phone with the NHTSA investigator for vehicle defects. Awesome guy, he as a Zupra automatic and is familiar with Bimmercode and the discussions on the forums regarding this issue.

He wanted to know first if I had disabled start/stop. I am going to go home and make a list of Bimmercode changes, revert the start/stop (assuming I disabled it), and see if functionality returns. If it doesn't, I'll proceed to undo changes one by one to see if functionality returns.

Ultimately, he seemed to imply the parking brake changing behavior because of "innocuous" coding in Bimmercode would be something the manufacturer would need to warm customers not to use bimmercode because a faulty parking brake behavior like this is dangerous.

I'm shocked a government agency contacted me in less than 24 hours, with someone who was knowledgable, interested in hearing what I had to say, and has a genuine interest in solving the problem either through customer/manufacturer warnings or a software solution.

I do not have any clutch modifications or aftermarket systems installed. I'm going to make theses changes to Bimmercode tonight and report my findings to the NHTSA investigator.

That is honestly quite impressive to hear, especially that you got an investigator who knows BimmerCode.

[RemoWilliams84]

Originally Posted by Good 4 2 reasons

I just got off the phone with the NHTSA investigator for vehicle defects. Awesome guy, he as a Zupra automatic and is familiar with Bimmercode and the discussions on the forums regarding this issue.

He wanted to know first if I had disabled start/stop. I am going to go home and make a list of Bimmercode changes, revert the start/stop (assuming I disabled it), and see if functionality returns. If it doesn't, I'll proceed to undo changes one by one to see if functionality returns.

Ultimately, he seemed to imply the parking brake changing behavior because of "innocuous" coding in Bimmercode would be something the manufacturer would need to warm customers not to use bimmercode because a faulty parking brake behavior like this is dangerous.

I'm shocked a government agency contacted me in less than 24 hours, with someone who was knowledgable, interested in hearing what I had to say, and has a genuine interest in solving the problem either through customer/manufacturer warnings or a software solution.

I do not have any clutch modifications or aftermarket systems installed. I'm going to make theses changes to Bimmercode tonight and report my findings to the NHTSA investigator.

Let me know what you find. I reset all of my bimmercode settings the other day and didn't see any changes.

Quick question though, if you make changes in the advanced menu (like disabling asd), do those get reverted by doing the restore option?