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 Auto stop/start no longer working

Post Reply
 
Thread Tools Search this Thread
      03-09-2020, 07:07 AM   #23
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 Skeewiff03 View Post
Well, I do not have heated steering/seats, I do no use the A/C (other than defogging windows on rare occasions) and ASS stopped working 2 weeks after delivery and has worked only twice since then.
I am not an expert on the system's details but a 'smarter' system would see that its level is low (maybe no instantly but tracked over a period) and would (saying) couple the engine more to charge battery
It will adjust as the battery SoC changes, there are 'stages' to the intelligent alternator control. But you still need miles/time/revs to get maximum possible charge to the battery. If your regular driving profile doesn't fulfil the requirements, it simply can't charge enough to get back to a SoC where the Stop-Start is triggered.

To me it makes sense to cut out Stop-Start as a measure to retain battery SoC, when there is limited opportunity to add charge.
Appreciate 0
      03-09-2020, 03:03 PM   #24
StevenDS85
I ///M Fan
Belgium
336
Rep
367
Posts

Drives: BMW 330i M-Sport
Join Date: Apr 2019
Location: Belgium

iTrader: (0)

I changed my driving mode to economy for my last trips of 150 km each. I do see that the battery is charging when I release the gas pedal, but so far, no luck. I also tried to switch off climate control foe a faster battery charge. Nothing changed so far.
Appreciate 0
      04-01-2020, 10:20 AM   #25
Nomana
Lieutenant Colonel
Nomana's Avatar
1466
Rep
1,637
Posts

Drives: BMW
Join Date: Sep 2014
Location: SN

iTrader: (0)

Quote:
Originally Posted by StevenDS85 View Post
I changed my driving mode to economy for my last trips of 150 km each. I do see that the battery is charging when I release the gas pedal, but so far, no luck. I also tried to switch off climate control foe a faster battery charge. Nothing changed so far.
Try to stick the outsource power to it's terminal and let it charge for some times to increase battery level.

I also do have this issue but it's on 5 years old battery.
Appreciate 0
      12-18-2020, 12:21 PM   #26
nahhlt
Registered
2
Rep
3
Posts

Drives: BMW 320i G20
Join Date: Oct 2019
Location: Lithuania

iTrader: (0)

Quote:
Originally Posted by StevenDS85 View Post
I changed my driving mode to economy for my last trips of 150 km each. I do see that the battery is charging when I release the gas pedal, but so far, no luck. I also tried to switch off climate control foe a faster battery charge. Nothing changed so far.
Have you been able to fix this issue? I think i'm the same boat. A month or so after delivery Auto Start/Stop worked probably just a few times. Mostly driving in Comfort mode.
Appreciate 0
      12-20-2020, 02:39 AM   #27
Seaford
Lieutenant Colonel
1148
Rep
1,684
Posts

Drives: 840 M Sport Gran Coupe
Join Date: Feb 2016
Location: Seaford, England

iTrader: (0)

As above stop/Start is one of the things that closes down in my 330i when the battery charge is low - which it is a lot of the time at the moment. Comfort access also,stops in as much as it will only work when I touch the door handle and will not lock the car when walking away -'somewhat disconcerting!
Appreciate 0
      12-20-2020, 02:54 AM   #28
Tam the Bam
Grumpy Old Git
Tam the Bam's Avatar
United Kingdom
443
Rep
923
Posts

Drives: BMW G20 330i RWD M Sport
Join Date: May 2019
Location: Scotland, UK

iTrader: (0)

Garage List
I agree that it needs to be charged to initiate stop/start etc. I only get it to work once I’ve charged the battery and then given the little (short journey) driving I do because of restrictions it doesn’t work for long.

It does appear to be more sensitive to SOC on this car than in my previous F10 where I never experienced the Stop/Start not functioning in the 6 years I had the car.

I will mention to dealer (when next in for service) but looks like a general feature with this car.
__________________
Retired:

F10 520D M Sport
E60 520D SE
Volvo S60 type R
Appreciate 0
Post Reply

Bookmarks

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 12:23 PM.




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