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Auto stop/start function

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Old Nov 14, 2018 | 07:32 PM
  #11  
BritCars's Avatar
Recovery Vehicle
Joined: Aug 2013
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From: Boston, USA
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It doesn't have two batteries - that was an older design. They now use a capacitor system to smooth the electrics while the car auto restarts

Are you sure it's not weather related? Where are you based? When it gets cold and engine is still heating up, or the cabin is still warming, it doesn't tend to activate

Otherwise I wonder if they bled your brakes correctly as it sounds like the brake pedal doesn't think it's being pressed hard enough?
 
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Old Nov 14, 2018 | 10:30 PM
  #12  
SoCalWiley's Avatar
Three Wheeling
Joined: Jun 2018
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I've found that the climate control plays a big part. When my AC is on, it doesn't shut off the engine to keep the AC running. If I have it on low, it will shut off. I've also become a master of controlling to the brake to determine if the engine shuts off or not. The auto-shutoff is growing on me, I kind of like it at long intersections.
 
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Old Nov 15, 2018 | 05:24 AM
  #13  
ponderosajack's Avatar
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From: Colorado
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I haven’t done this yet but a little relay with a few seconds delay could apply a quick power pulse to the auto off switch to turn the system off a few seconds after starting. Then you could turn it on when desired with the switch. Not sure how hard it is to access the back of the auto stop switch. That’s my biggest question now. The rest is easy.
 
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Old Feb 24, 2020 | 12:02 PM
  #14  
GradyB's Avatar
6th Gear
Joined: Nov 2019
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Default How I disabled Auto Stop/Start 2018 RR

I unplugged this connector on the Negative battery terminal and now the Auto Stop/Start no longer activates on starting the engine. I'll post any other changes I notice, if any.

 
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Old Feb 18, 2021 | 02:40 PM
  #15  
Chris Selvidge's Avatar
1st Gear
Joined: Feb 2021
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Originally Posted by BritCars
Why not leave it to start and stop as designed. It seems to work v well on ours and after a few weeks you just get used to it and it's normal
I actually don’t mind it but on my 2014 sport it activates too quickly I can’t even stop and select reverse to park in my drive without the engine cutting out ? It seems to activate immediately could do with 5 seconds or so anyone else have the same issue
 
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Old Feb 26, 2021 | 12:33 PM
  #16  
Disco-D's Avatar
2nd Gear
Joined: Dec 2020
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Default @GradyB

Any long term updates on disconnecting the plug on negative battery terminal? Thanks in advance.
 
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Old Feb 26, 2021 | 01:29 PM
  #17  
GradyB's Avatar
6th Gear
Joined: Nov 2019
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No problems at all. I've had it disconnected for one year now. Everything works perfectly.

Living in a smaller city with very little traffic, the fuel savings would be insignificant relative to the wear and tear of constant stopping and restarting the engine.
 
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Old Feb 26, 2021 | 07:49 PM
  #18  
ponderosajack's Avatar
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From: Colorado
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No problems here. Disconnected a long time ago. I always plug it back in before taking it for service though.
 
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Old Mar 3, 2021 | 08:23 AM
  #19  
FormerTouaregFan's Avatar
Three Wheeling
Joined: Jun 2017
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There was a post a while back recommending disabling auto start with diesels due to shortening the life of the very expensive DPF ($8k in my case). Does anyone know the trade off of idling vs stop start? For example, shutting the engine off for a 10 minute train crossing is probably less damaging than idling for 10 minutes. But is there a trade off time? A 2 minute stoplight or more, shut the engine off, or?
 
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Old Mar 3, 2021 | 03:32 PM
  #20  
LoneStarLR's Avatar
Rock Crawling
Joined: Aug 2019
Posts: 392
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From: Plano, Texas
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Given diesels have no spark plugs to foul up I’d imagine long idling isn’t a problem?
 
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