Audi A1 2015 Start/Stop deactivation problem

[Uwe]

Hello Uwer, thanks, totally understandable. My question for you is, why sometimes unchecking a bit that is clearly related to a tweak, (in this case "enabling start stop", but my question applies for any other case), isn´t enough and sometimes don´t change the function behaviour?

Just because a bit exists does not mean the software in the modules in the car will pay attention to how that bit is set.

-Uwe-

 

[PetrolDave]

Thanks Don! That´s an excellent ida. However, my customer would like to disable it via coding. But I´ll keep it in mind for other cases.

With SS it's quite often the case that disabling via coding isn't possible.

The advantage of the device suggested by DV52 is that when the car is taken to a dealer or inspected the SS can be operating normally

 

[sportmotor]

I like ALL conspiracy theories - not because I think that they should be believed, but rather because they make folk think laterally (if not dismissed out-of-hand)!!

In this instance though and notwithstanding your gearbox repair observations - there doesn't appear to be evidence of systemic problems with the SS gear-train. or battery life on web forums for cars with SS.

Nevertheless- the absence of evidence to support your hypothesis is not a reason to keep SS operational on any car. There is a much better reason for its demise and it's driven by the oldest and most effective motivation: self interest!! SS is simply dangerous and it should be gone!!

Don

PS: it's good to read that you have joined the anti-SS movement!

Now the world is like this, every theory even tichnicaly correct is signed as conspiracy.

When the car starts once during my way to work (with SS turned off) or 12 times with SS on, every day, You couldn't have University degree in automotive egineering to understand what is going to happen with battery, engine, bearings, gearbox/clutch.

In real life there is also no emission advantage, because the engine stops for 5 sec. max in most cases, emissions during start of engine are much higher than if engine is in idle during these short time periods.

Of course in a homologation routine the advantage of SS is significant, but the homologation routine has nothing to do with a real life, or better with my own real life experience.

 

[sportmotor]

Back to basics, Start stop off on A! could work likw this:

Address 19,

channel IDE08348-Start/stop start voltage limit adapt from 12.5 V to 10.5 V,

(this limit blocks SS to work when voltage is higher than 10,5V)

Don't know exactly if it works for A1, but for similar cars - VW Polo and Skoda Fabia it works.

 

[Uwe]

Back to basics, Start stop off on A! could work likw this:
Address 19,
channel IDE08348-Start/stop start voltage limit adapt from 12.5 V to 10.5 V,
(this limit blocks SS to work when voltage is higher than 10,5V)
Don't know exactly if it works for A1, but for similar cars - VW Polo and Skoda Fabia it works.

Considering his Gateway is not UDS, it will only have numbered channels, not named ones.

-Uwe-

 

[nugentp]

Yeah so picking up on an old thread here - I had a look on the A1 and true enough it only has numbered channels with no clues provided anywhere by VCDS for what is what on this controller.

-------------------------------------------------------------------------------
Address 19: CAN Gateway (J533) Labels: 8X0-907-468.clb
Part No SW: 8X0 907 468 A HW: 8X0 907 468 A
Component: GAT 4CAN 1L M H04 0083
Revision: 1C060023 Serial number: 2341C1140303C8
Coding: FBCF005A000100010153
Shop #: WSC 00046 000 00000
VCID: C3C6CBA042ED7C8B1E-8097

Subsystem 1 - Part No SW: 8K0 915 181 H HW: 8K0 915 181 H
Component: J367-BDM H07 0171
Serial number: 00000000007100194086

Subsystem 2 - Part No SW: 8K0 959 663 HW: 8K0 959 663
Component: J532_DCDCStab H17 0042
Serial number: 11118001167011200181

No fault code found.
-------------------------------------------------------------------------------

Wondering if anyone else managed to defeat the stupid start/stop system on the 8X A1 - not found any success stories on here yet. Maybe its incredibly easy and I have just missed it ?