Bimmerpost
3
/
4 Series
BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read
2019+ BMW 3 AND 4-SERIES FORUMS (G2x Generation) General G20 Sedan / G22 Coupe / G26 Gran Coupe Discussions Grinding noise when reversing with AutoHold

Post Reply
 
Thread Tools Search this Thread
      01-31-2020, 02:15 PM   #1
newway
Enlisted Member
15
Rep
31
Posts

Drives: BMW 320i M SPORT
Join Date: Jan 2020
Location: LONDON

iTrader: (0)

Grinding noise when reversing with AutoHold

Hi fellow BMWers,

I am a new BMW owner for only 2 weeks, mine's a BMW 320i G20 M SPORT, this is my first auto car so I am still getting used to it.

Everything seems fine except this one small thing, I noticed that whenever I put the gear in R and start pressing the pedal, the car would make a moderate grinding noise (similar to that noise you hear when start driving after car wash/rain). Sometimes the noise also occurs when I start the engine and start turning the wheel. After I start driving the noise will go away, no noise e.g. after waiting for a red light.
This only happens when the auto-hold is on, if I turn off the auto-hold feature and do the manoeuvre (e.g. reversing) the noise also went away.

Is this normal?

Last edited by newway; 01-31-2020 at 04:01 PM.. Reason: typo
Appreciate 0
      01-31-2020, 04:02 PM   #2
HighlandPete
Lieutenant General
6659
Rep
15,858
Posts

Drives: BMW F11 535i Touring
Join Date: Mar 2007
Location: Scotland, Highland Region

iTrader: (0)

Is this on a very slow move off, as if the brakes are still partly engaged?

What if you are a bit quicker to move, still the same?
Appreciate 0
      01-31-2020, 05:59 PM   #3
newway
Enlisted Member
15
Rep
31
Posts

Drives: BMW 320i M SPORT
Join Date: Jan 2020
Location: LONDON

iTrader: (0)

Quote:
Originally Posted by HighlandPete View Post
Is this on a very slow move off, as if the brakes are still partly engaged?

What if you are a bit quicker to move, still the same?
Good point, I will have a try later.
Appreciate 0
      02-13-2020, 04:17 AM   #4
newway
Enlisted Member
15
Rep
31
Posts

Drives: BMW 320i M SPORT
Join Date: Jan 2020
Location: LONDON

iTrader: (0)

Just an update, I've been to the service center and I was told this is normal.
Appreciate 0
      02-14-2020, 06:51 AM   #5
cnichols138
X3M Comp is a beast
89
Rep
171
Posts

Drives: 2022 BMW X3M Comp
Join Date: Jul 2019
Location: Pittsburgh

iTrader: (0)

Mine tends to lock up the rear brakes when its cold out. I can put it in gear and it just sits there until I give it gas to break the brakes loose. I hope that is normal.
Appreciate 0
      02-14-2020, 08:56 AM   #6
vincechase
Lieutenant
vincechase's Avatar
United_States
242
Rep
461
Posts

Drives: G20 330 M Sport
Join Date: May 2014
Location: New York

iTrader: (0)

I think this is movement in the opposite direction when the parking brake is applied to the rotors.

Happen to me a few times in a huracan I left the parking brake on and tried to reverse. So im sure its the same concept
Appreciate 0
      02-14-2020, 09:20 AM   #7
VipinLJ
Petrolhead
VipinLJ's Avatar
United_States
1937
Rep
3,520
Posts

Drives: ‘20 330i,‘16 X3,‘18 SQ5,‘17 A7
Join Date: Nov 2019
Location: Illinois

iTrader: (2)

Quote:
Originally Posted by cnichols138 View Post
Mine tends to lock up the rear brakes when its cold out. I can put it in gear and it just sits there until I give it gas to break the brakes loose. I hope that is normal.
It’s normal. All my cars do it when it’s freezing outside.
__________________
Current:
2020 BMW 330i xDrive
2018 Audi SQ5 Prestige
2017 Audi A7 Prestige
Appreciate 0
      11-24-2020, 04:31 PM   #8
merlin99
Enlisted Member
15
Rep
39
Posts

Drives: G20 330i
Join Date: Nov 2020
Location: UK

iTrader: (0)

Quote:
Originally Posted by newway View Post
Hi fellow BMWers,

I am a new BMW owner for only 2 weeks, mine's a BMW 320i G20 M SPORT, this is my first auto car so I am still getting used to it.

Everything seems fine except this one small thing, I noticed that whenever I put the gear in R and start pressing the pedal, the car would make a moderate grinding noise (similar to that noise you hear when start driving after car wash/rain). Sometimes the noise also occurs when I start the engine and start turning the wheel. After I start driving the noise will go away, no noise e.g. after waiting for a red light.
This only happens when the auto-hold is on, if I turn off the auto-hold feature and do the manoeuvre (e.g. reversing) the noise also went away.

Is this normal?

I have this issue when switching from R to D makes like a grinding noise , think it's the electronic handbrake
Appreciate 0
      11-25-2020, 03:40 AM   #9
HighlandPete
Lieutenant General
6659
Rep
15,858
Posts

Drives: BMW F11 535i Touring
Join Date: Mar 2007
Location: Scotland, Highland Region

iTrader: (0)

Quote:
Originally Posted by merlin99 View Post
I have this issue when switching from R to D makes like a grinding noise , think it's the electronic handbrake
Not sure what noise that is. Autohold uses the hydraulic system, not the electronic parking brake.
Appreciate 0
      01-31-2021, 03:25 PM   #10
merlin99
Enlisted Member
15
Rep
39
Posts

Drives: G20 330i
Join Date: Nov 2020
Location: UK

iTrader: (0)

So when I switch from D to R the electronic handbrake isn't on . However if I engage the handbreak manually and then do the D to R no sound. So like you said the auto hold is forcing against the brakes but it does sound awful and still not right
Appreciate 0
Post Reply

Bookmarks

Tags
autohold grind grinding

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -5. The time now is 09:55 AM.




g20
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST