It doesn`t work on Octavia combi, 2015.

South Yorkshire police cannot acquire new high-performance cars or X5s unless standard due to the new rules.

@punyXpress  What actual 'new rules' are affecting South Yorkshire, or Law or EU Legislation are you talking about?

Is it Austerity in their procurement department.

 

Police Scotland have some lovely high performance 'New WLTP' certificated vehicles.

V90 Volvo T8 Hybrids are quite nippy.

Volvo V70 T6 get along quite well with just around 300ps.

Edited 29 March, 20197 yr by Skoffski

On 30/12/2016 at 20:03, kickdown said:

The tools needed:

VCDS Release 16.8.3 or higher version + compatible OBD II CAN Enabled cable. (You can buy them @Ross-Tech)

 

The steps to disabling start-stop system:

 

1. Enter 19-CAN Gateway

2. Click on Coding-07

3. Click on Long Coding Helper

4. Change Byte 3, Bit 2-3 (Drop down menu) from 04 Start/Stop System with Recuperation installed [PR-7L6]  to 08 Start/Stop System NOT installed [PR-7L3]

5.Change Byte 4, Bit 0 to 0

6.Change Byte 15, Bit 0 to 0

7. Click on Exit - top left hand corner

8. Click on Do it!

Voila you are done!

Tried today on my Audi A3 8V year 2014, with vcds 18.9. Changed:

 

- byte 03 from 04 to 08

- byte 04 from 0F to 0E

- byte 15 kept in 00

 

And after doing the changes I click on "Do it!" and says "Coding accepted". However, it doesn't affect the way start stop works, still shutting off the engine when stopping. Anybody knows what could be happening?

Picture showing coding was accepted:

 

On 22/10/2017 at 21:48, P@ul said:

I have just installed a memory module into my fabia. Works great. It remembers the last state and I don't need to disable AutoStop each time I restart the engine. I think it is a better solution than permanently disabling it using software tweaks - I can still turn it on and off when I want.

Which module did you use and which wires did you connect to? I've just had a look at the back of my switch bank and there's only one plug with 6 wires coming out of it.

I bought this minus version.

I don't remember now which exact wires I connected out of them six, but you need three - 12volt, ground and signal. 

13 hours ago, steslatt said:

Which module did you use and which wires did you connect to? I've just had a look at the back of my switch bank and there's only one plug with 6 wires coming out of it.

I would recommend buy the full in-line module, you just unplug the connectors that to to the switch and connect inline the pre-made module. Find the one that matches your car.

 

https://www.carat-garage.de/index.php/en/shop-englisch/audi/a3/a3-8v-ab-2016/a3-8v-sportback-ab-2017/ssam-modul-938-947-html

If you want to disable it really easy, permanently, without cost for buying module etc, and without coding anything.

 

Just unplug the extra connector on the -ve terminal of the battery. This extra connector is to a "shunt resistor" which purpose is to measure the system power consumption. Unplug that, it simply reads that system power consumption is too high, and never activates start-stop.

 

No error codes thrown, no lights, no pings warnings or anything. Just no start-stop! Simply "power consumption too high" in the menu.

 

If you're going to leave it off for a while, i'd recommend sealing the connectors in a bag or something to prevent dirt and wet getting in them.

9 hours ago, FabiaGonzales said:

If you want to disable it really easy, permanently, without cost for buying module etc, and without coding anything.

 

Just unplug the extra connector on the -ve terminal of the battery. This extra connector is to a "shunt resistor" which purpose is to measure the system power consumption. Unplug that, it simply reads that system power consumption is too high, and never activates start-stop.

 

No error codes thrown, no lights, no pings warnings or anything. Just no start-stop! Simply "power consumption too high" in the menu.

 

If you're going to leave it off for a while, i'd recommend sealing the connectors in a bag or something to prevent dirt and wet getting in them.

I'd been looking into this for at least an hour or so yesterday and can't believe I'd not seen this mentioned anywhere. Thanks!
Good news, I removed the plug and it did the job. Bad news, when removing the plug it snapped so there's no going back for now.

Does disabling start stop provide any provable long term advantages and do these over rule any disadvantages?

 

1 minute ago, abaxas said:

Does disabling start stop provide any provable long term advantages and do these over rule any disadvantages?

 

Depends on how you look at it. Disabled - less wear on the starter motor. Enabled - less emissions, less fuel consumption. I disabled it because a lot of the time it fails to start back up in certain conditions.

7 hours ago, steslatt said:

Depends on how you look at it. Disabled - less wear on the starter motor. Enabled - less emissions, less fuel consumption. I disabled it because a lot of the time it fails to start back up in certain conditions.

Less wear on the starter motor, the battery and the engine itself, which lacks lubrications after the next few seconds following a startup. What I don't understand is why there is more emissions and fuel consumption. It that's so because something has changed regarding the behavior of the car or what is different?

Edited 7 June, 20197 yr by hungergames

38 minutes ago, hungergames said:

Less wear on the starter motor, the battery and the engine itself, which lacks lubrications after the next few seconds following a startup. What I don't understand is why there is more emissions and fuel consumption. It that's so because something has changed regarding the behavior of the car or what is different?

Well the engine is running all the time so it's going to emit more exhaust gases and use more fuel.

3 minutes ago, steslatt said:

Well the engine is running all the time so it's going to emit more exhaust gases and use more fuel.

Oh, it's as simple as that? I though there were more things going on when disconnecting that cable that just not shutting off the engine.

6 hours ago, hungergames said:

Oh, it's as simple as that? I though there were more things going on when disconnecting that cable that just not shutting off the engine.

 

I did a couple hours with it off to test. The car behaved in exactly the same way as with the cable connected, just it did not shut off the engine when stopped.

On 06/06/2019 at 23:10, FabiaGonzales said:

If you want to disable it really easy, permanently, without cost for buying module etc, and without coding anything.

 

Just unplug the extra connector on the -ve terminal of the battery. This extra connector is to a "shunt resistor" which purpose is to measure the system power consumption. Unplug that, it simply reads that system power consumption is too high, and never activates start-stop.

 

No error codes thrown, no lights, no pings warnings or anything. Just no start-stop! Simply "power consumption too high" in the menu.

 

If you're going to leave it off for a while, i'd recommend sealing the connectors in a bag or something to prevent dirt and wet getting in them.

 

Any chance of a photo showing the connector in question please before I attempt to do the same.

39 minutes ago, EdHru said:

 

Any chance of a photo showing the connector in question please before I attempt to do the same.

No problem, I'll try to take a picture of it today.

3 minutes ago, hungergames said:

No problem, I'll try to take a picture of it today.

 

That would be greatly appreciated.

You'll find the connector at the -ve terminal of the battery. Might be hidden under the Protective flap (mines broken off so is missing);

 

 

There's a little connector toward the fusebox, with the little grey tab;

 

 

Pull this clip out fully as shown, this unlocks the connector;

 

 

Now finally the connector will unplug. You might hear a little click of some relays and a whirring noise. That's just the computer recognising the change;

 

 

Note. Do NOT use any pliers or any tools to remove the connector as it's easily damaged. If it's not coming off easy then the little white tab is probably not pulled out far enough.

 

Good luck.

1 hour ago, FabiaGonzales said:

You'll find the connector at the -ve terminal of the battery. Might be hidden under the Protective flap (mines broken off so is missing);

 

 

There's a little connector toward the fusebox, with the little grey tab;

 

 

Pull this clip out fully as shown, this unlocks the connector;

 

 

Now finally the connector will unplug. You might hear a little click of some relays and a whirring noise. That's just the computer recognising the change;

 

 

Note. Do NOT use any pliers or any tools to remove the connector as it's easily damaged. If it's not coming off easy then the little white tab is probably not pulled out far enough.

 

Good luck.

Also, don't wiggle it, that's how mine broke. I think taking the fuse box lid off will give you more room to remove it.

I think that most people just use VCDS etc to find where to change the "threshold" voltage value that controls when/if stop/start is enabled, then increase that up to an unachievable level, I think that by doing that you still retain all the benefits of "recuperative braking" ie smart charging.

4 hours ago, rum4mo said:

I think that most people just use VCDS etc to find where to change the "threshold" voltage value that controls when/if stop/start is enabled, then increase that up to an unachievable level, I think that by doing that you still retain all the benefits of "recuperative braking" ie smart charging.

 

But then you must buy either an adapter to use a phone app, or an adapter to connect a laptop to the OBD2 port, then you must find an app or program that will allow you to do custom coding, many of which (pretty much all afaik?) are paid. Then you also have the hassle of having to set it back (and maybe pay more for the app's sub or credits) if you ever want it on again.

 

Taking the connector off is as simple as. Free, no tools. Takes literally 1 minute maybe more if you include walking to the car. Then if you want it again? Just plug it back in!

 

When i worked deliveries, i had to turn off stop start, as the increased wear and tear from all the stop-starting would no doubt have caused more problems than just having low battery warnings.

 

Every time you stop/start. You put extra stress on the battery, starter motor, and then again the battery as it has to recharge it again, which is also extra load on the alternator. If you've an automatic, it can also make pulling out of junctions a bit interesting as i found the way it activates a bit tempremental and you can sometimes end up rolling back as the engine shut off just when you wanted to set off...

 

Nowadays i leave mine on, little low on the financial side of things so the immediate fuel savings are more important than a few extra stop starts of wear on something that will inevitably fail at some point anyway in a few years.

Also you need to remember that issues exist with idling.

Thermal cycling.
Low oil pressure.
Increased chance of cylinder bore glazing.
(probably more but I'd need time to think/research)

I have no idea which system is best/worse.

 

In reality, it makes no difference to the engine regarding engine wear and tear whether you have the stop start system disabled on enabled. The engines are designed to stop and start often without doing any damage. The lubrication of the motor after stopping and re-starting is not an issue. Everything is wet with oil inside the engine including the piston rings, cylinders, bearings, cams etc. No need to worry there. The starter motors are also not affected as they are beefed up to cope with this, and especially as a hot start is very easy on the motor anyway, very light load and very little voltage required. The only time I switch mine off is when I get into a very very long line of traffic that is creeping forwards very slowly requiring my car to stop start 20-30 times in 1/4 of a mile. Arguably, that's the time stop start would do the most good, but it does start to impact the battery voltage when the engine stop/starts in such a small amount of time.