[_debo]

Hi everyone, I do apologies if this topic was treated before but I couldn't find anything relevant with the search function, so if that's the case please direct me there, otherwise could someone shed some lights about the parking sensors behaviour.

I do have PDC front and back on my M2C (first time I have them on a car) and I noticed a rather annoying behaviour with them, never noticed in any other car I've been in. When parking putting the gear in neutral doesn't stop the acoustic signal to blast your ears. Is that intended? Is there a work around to it which is not disabling the sensors with the button?

Thanks in advance for your help.

[sevenmarc]

Originally Posted by _debo

Hi everyone, I do apologies if this topic was treated before but I couldn't find anything relevant with the search function, so if that's the case please direct me there, otherwise could someone shed some lights about the parking sensors behaviour.

I do have PDC front and back on my M2C (first time I have them on a car) and I noticed a rather annoying behaviour with them, never noticed in any other car I've been in. When parking putting the gear in neutral doesn't stop the acoustic signal to blast your ears. Is that intended? Is there a work around to it which is not disabling the sensors with the button?

Thanks in advance for your help.

I've seen a few reviews and posts about this. It seems that the easiest way to get it to stop os to shut the car off. There was a forum member who replaced his mode selection buttons with those from a higher model number, I think it was an M4, so that he could have the button that allowed him to immediately toggle the sensors. I'll see if I can dig that post up.

[_debo]

Originally Posted by sevenmarc

I've seen a few reviews and posts about this. It seems that the easiest way to get it to stop os to shut the car off. There was a forum member who replaced his mode selection buttons with those from a higher model number, I think it was an M4, so that he could have the button that allowed him to immediately toggle the sensors. I'll see if I can dig that post up.

Yes please, if you can find the thread it would be great, I searched all the possible keywords I could think of but without luck.

I do have the button, it comes standard on the M2C if you go for both front and read PDC... but it's just somehow an annoyance, you'd expect the acoustic signal to go away when in neutral right? Unfortunately I also checked and it doesn't like it can be coded either.

[sevenmarc]

Originally Posted by _debo

Yes please, if you can find the thread it would be great, I searched all the possible keywords I could think of but without luck.

I do have the button, it comes standard on the M2C if you go for both front and read PDC... but it's just somehow an annoyance, you'd expect the acoustic signal to go away when in neutral right? Unfortunately I also checked and it doesn't like it can be coded either.

Oh, I didn't realize that you already have the button... it wasn't there on the OG M2. A quick search revealed that the thread that I was referring to was for the OG. That's pretty much the fix then, other than disabling the sensors entirely. Definitely not ideal, and a weird oversight by BMW.

[sevenmarc]

This is the thread that I was looking for: Rear parking sensor on/off switch installed https://f87.bimmerpost.com/forums/sh....php?t=1345311

[_debo]

Originally Posted by sevenmarc

This is the thread that I was looking for: Rear parking sensor on/off switch installed https://f87.bimmerpost.com/forums/sh....php?t=1345311

Cheers, really appreciated.

[_debo]

Originally Posted by sevenmarc

Oh, I didn't realize that you already have the button... it wasn't there on the OG M2. A quick search revealed that the thread that I was referring to was for the OG. That's pretty much the fix then, other than disabling the sensors entirely. Definitely not ideal, and a weird oversight by BMW.

Yes I do, however, the thread resulted useful anyway because someone mentioned an LCI Firmware update fixed that... so now I'm even more puzzled yet curious.

Thanks again.

[sobek305]

You want it off you have to press the button, it’s meant to beep

[_debo]

Originally Posted by sobek305

You want it off you have to press the button, it’s meant to beep

What do you mean it's meant to beep? I know it's meant to beep while I'm manouvering but once I'm parked why on earth should it keep beeping considering I came to a safe stop? I never saw such a behaviour in any other car I've been on with parking sensors hence my surprise

Yes I read that BMW says it's like that by design in case someone walk past by you but that's what rear mirrors and read cameras are for no? Now it seems that the latest software update that came out the 19th March should fix this and it should work on my model, I'll see when I'll take it in for the pre-break in oil change in 50/100 miles.

[Poochie]

Originally Posted by _debo

Yes I do, however, the thread resulted useful anyway because someone mentioned an LCI Firmware update fixed that... so now I'm even more puzzled yet curious.

Thanks again.

It was "fixed" for late 2017 & 2018 on the original M2 and its related software updates because those MY didn't have a button, stock, to be able to kill the PDC sensors in neutral..

After the M2C added front sensors and thus a PDC button, they reverted back to the old logic of keeping the sensors on in neutral, unless manually switched off.

So like you predicted, it's by design. Not sure if it could be changed with coding but I do know that you could completely disable the PDC system or just the beeping sound via BimmerCode.

[BlkSVT]

My Audi (ZF 8-speed) behaves the same way as my M2C (MT): Once the sensors are on, triggered by going to reverse, they stay on until you either move forward at faster than ~7-8mph, hit the button, or shut the car off. Changing to P, N, or Drive in the Audi or ANY gear/neutral in the M2 doesn't affect anything.

Not saying it's correct or preferred, but it seems to be the way both Audi and BMW do it
i.e. "They all do that"

[_debo]

Originally Posted by BlkSVT

My Audi (ZF 8-speed) behaves the same way as my M2C (MT): Once the sensors are on, triggered by going to reverse, they stay on until you either move forward at faster than ~7-8mph, hit the button, or shut the car off. Changing to P, N, or Drive in the Audi or ANY gear/neutral in the M2 doesn't affect anything.

Not saying it's correct or preferred, but it seems to be the way both Audi and BMW do it
i.e. "They all do that"

Do you have the rear camera too?

My cousin new X3 doesn't do it, his previous Golf didn't, my friend Qashqai doesn't either so go figure

[_debo]

Originally Posted by Poochie

It was "fixed" for 2017 & 2018 on the original M2 and its related software updates because those MY didn't have a button, stock, to be able to kill the PDC sensors in neutral..

After the M2C added front sensors and thus a PDC button, they reverted back to the old logic of keeping the sensors on in neutral, unless manually switched off.

So like you predicted, it's by design. Not sure if it could be changed with coding but I do know that you could completely disable the PDC system or just the beeping sound via BimmerCode.

Nope I checked that, definitely it can't be coded.

[BlkSVT]

Originally Posted by _debo

Do you have the rear camera too?

My cousin new X3 doesn't do it, his previous Golf didn't, my friend Qashqai doesn't either so go figure

Yes, rear camera in both

[_debo]

Ok, I guess I'll have to live with it then... super annoying though, I guess the only partial solution is configure the volume to not deafen me

[chmura]

I think you can customize this with the Bimmercode app.

I need to change when going to reverse and back to first year the screen stays on reverse until a certain speed is reached. I want to change this to the lowest speed.

[_debo]

I checked the PDC section on their website and what you can do it's very limited

https://www.bimmercode.app/cars/f22/

[Poochie]

Originally Posted by _debo

I checked the PDC section on their website and what you can do it's very limited

https://www.bimmercode.app/cars/f22/

Under REM:

3203 PdcParkMasterVar, 14

V_SCHWELLE_1 (V THRESHOLD 1)

Custom: 00

The default speed cut-off is 0F or 2klm.

00 should stop the sound.

[_debo]

Where did you get those values from? From the bimmercode website these are the available speeds:

5 km/h
10 km/h
15 km/h
20 km/h
30 km/h
40 km/h
50 km/h

[Frank K]

Sounds like pretty reasonable behavior. If it would turn off when switching to neutral, wouldn't it even encourage people to park in neutral?

[_debo]

Originally Posted by Frank K

Sounds like pretty reasonable behavior. If it would turn off when switching to neutral, wouldn't it even encourage people to park in neutral?

That's taken care of, on DCT model you can't turn off the car in neutral.

[Thescout13]

Originally Posted by _debo

That's taken care of, on DCT model you can't turn off the car in neutral.

You can. You just have to press the button again to throw it into "park". But you are right that unlike turning the car off in drive or in reverse, it won't automatically go to park.