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Start/Stop option to disable it?

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#21 ·
Flash635 said:
I noticed my T1 R5 uses no fuel on throttle off overrun, I'd say this is the condition you're referencing.
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Not really - my T4 cuts the engine before coming to a standstill, only the last few mph, so there is a delay if I then release the brake and try to accelerate away.

I have now learnt that the brake pedal switch has 2 pressure levels and only activates SS at the greater of the 2 pressures - so if I don't want SS to activate I just press less heavily on the pedal.

Simple once you've learnt to do it instinctively but clearly potentially dangerous.
 
#22 ·
As well as additional wear on components during constant stop/ starting, additional heat stresses/fatigue, will occur in turbo chargers and exhaust systems with constant cooling and heating up again after start up.
Engines that are required start and stop should be fitted with auxiliary independent LO and Cooling water pumps. LO to keep the cooling and bearings wet. Water circulation should have a heater in line to maintain engine temperature, while engine stopped.
 
#23 ·
Flash635 said:
I noticed my T1 R5 uses no fuel on throttle off overrun, I'd say this is the condition you're referencing.
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You don't have stop/fart which actually turns the engine off, so I think it may be erroneous to try and draw any comparison with your R5.
 
#24 ·
noobytoogy said:
You don't have stop/fart which actually turns the engine off, so I think it may be erroneous to try and draw any comparison with your R5.
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Yeah, I know I don't have that function but I'm guessing all Touaregs with all engines have the fuel cut during throttle off overrun, it's been around for a while.

It stands to reason that if you have throttle off overrun to a stop then you engine has stopped some time ago before you the car stopped.
 
#25 ·
Black Grouse said:
Not really - my T4 cuts the engine before coming to a standstill, only the last few mph, so there is a delay if I then release the brake and try to accelerate away.

I have now learnt that the brake pedal switch has 2 pressure levels and only activates SS at the greater of the 2 pressures - so if I don't want SS to activate I just press less heavily on the pedal.

Simple once you've learnt to do it instinctively but clearly potentially dangerous.
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Yep, but even if you keep light pressure on the brake, after about 30 seconds the motor stops anyway and anytime the motor stops, if you want a quick take off after releasing the brake, there is a noticeable pause, If you release the brake pedal, the motor then starts and you can floor it if requires but you ave to ait that second or so between relase brake and go. John
 
#26 ·
schootsie said:
Yep, but even if you keep light pressure on the brake, after about 30 seconds the motor stops anyway and anytime the motor stops, if you want a quick take off after releasing the brake, there is a noticeable pause, If you release the brake pedal, the motor then starts and you can floor it if requires but you ave to ait that second or so between relase brake and go. John
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I can happily sit with just enough pressure on the pedal to stop transmission creep and prevent the engine stopping - pressing harder will stop the engine if all other conditions are met.

Even with the harder pressure and engine stopped, it's possible to release the pressure a little which restarts the engine, but still stops movement, ready for a quick get away.

I think you need to experiment more!
 
#27 ·
Black Grouse said:
I can happily sit with just enough pressure on the pedal to stop transmission creep and prevent the engine stopping - pressing harder will stop the engine if all other conditions are met.

Even with the harder pressure and engine stopped, it's possible to release the pressure a little which restarts the engine, but still stops movement, ready for a quick get away.

I think you need to experiment more!
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All this is BS me thinks! :serious::serious:

Driving can be taxing especially in a stop/start congested traffic situation so a driver should be concentrating on what's going on around him not trying to keep the vehicle from shutting off under him.
If the SS was not a design feature but a fault of the vehicle how many owners would put up with a workaround as is suggested?

TonyB
 
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#28 ·
seafarer28 said:
All this is BS me thinks! :serious::serious:

Driving can be taxing especially in a stop/start congested traffic situation so a driver should be concentrating on what's going on around him not trying to keep the vehicle from shutting off under him.
If the SS was not a design feature but a fault of the vehicle how many owners would put up with a workaround as is suggested?

TonyB
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In "congested traffic" you should either let SS operate or switch it off - your choice. The issue was the delay when SS operates in other conditions, like a junction, where a swift get-away is wanted after not quite coming to a halt.
 
#29 ·
Interestingly (or not as the case may be) professional limo drivers practice stopping a car with no perceptible jerk to passengers. This is the "light touch" approach in action.
 
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#30 ·
Toiler said:
Interestingly (or not as the case may be) professional limo drivers practice stopping a car with no perceptible jerk to passengers. This is the "light touch" approach in action.
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I agree that good professional limo drivers operate, but there are a lot of them not so good. A bit more like taxi drivers in Cairo for some of them.
The slowing down gently is not the issue, more the pressure applied while stopped or using hill hold.
I thankfully don't have the un-feature but when I get courtesy cars it can be annoying trying to find and remember to turn off the stop/start function before you set off. John
p.s. I drove limos part time for about 8 years, everything from stretch Mercs to stretch Yank tanks (Suburbans) to vintage Jags with crash gearboxes and mechanical brakes - now there's a challenge to drive smoothly in Sydney peak hour traffic on a wet day!!!!!!
 
#31 ·
1st post here, also frustration with the Start / Stop function. Seems as though apart from springing for a VCDS system and playing with the settings in the ECU, there is no way to permanently turn the system off. This seems strange given that our 2013 Porsche Boxster, (being from the VW / Audi / Porsche family) has the ability to permanently switch this function off - this was the first thing the salesman showed us when we got that car :) . Why wouldn't they replicate this facility over the whole range of the family vehicles??
 
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#32 ·
Yep, not quite the same, but possible with a vcds.
Get someone to make the change for you, job done.
V8 comes with this switched off
 
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#33 ·
TwoHeadsTas said:
1st post here, also frustration with the Start / Stop function. Seems as though apart from springing for a VCDS system and playing with the settings in the ECU, there is no way to permanently turn the system off. This seems strange given that our 2013 Porsche Boxster, (being from the VW / Audi / Porsche family) has the ability to permanently switch this function off - this was the first thing the salesman showed us when we got that car :) . Why wouldn't they replicate this facility over the whole range of the family vehicles??
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Also strange that the handbrake works in reverse too - Boxster - push to engage, lift to disengage, 180 pull to engage, push to disengage. Pretty sure it's exactly the same switch too :smile2:

Still, Touareg was much better value than a Cayenne which I first started looking for. For same amount of money I would have got a Cayenne with double the mileage and double the age, so Touareg was undeniably better value given the capabilities I was looking for
 
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#36 ·
TimWhit said:
I was driving my daughter in laws Tiguan R model and it has the start stop function in it's menu. My Treg, unfortunately doesn't.
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Do you have a scan of the Tiguan?
Worth a shot to see what can be replicated
 
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#38 ·
This is the trick for Audi Q5 and Q7:
Control Module: ( 08 ) Air Conditioning
Adaptation
A/C comfort parameter for start/stop function
Old Value: 5
New Value: 0

Also placing the transmission into "S" deactivates the start/stop.

May be worth trying on the Touareg.
 
#39 ·
noobytoogy said:
2 minutes with VCDS sorts out STOP/START, no electronics required, and you can re-engage it or not as you wish:

How to disable Start/Stop - myTreg forums

The first code originated from a French guy trawling Audi sites.
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Beautiful đź‘Ś I just did this on my 7P, old CHANNEL 34 value was 4, I changed it to 36 (4+32), now it remembers the last status of the S/S feature. This was annoying me since I picked the car up yesterday.
 

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