Mk7.5 Stop/Start

[P6GTD]

Here’s a thought. Have they managed to refine it in the Mk8?
VW must have had plenty neg feedback.....no?
I think the bottom line is, leaving aside all the advice, S/S simply does frequently cut out before the car stops and then immediately restarts again as soon as the car is at rest then the engine keeps running. I mean....WTAF is that all about.
No, unless you are stuck in a traffic jam this feature does not save fuel.
And........in the good old days of yore, if I thought I was going to be stopped for more than a couple of minutes in a jam I would use my judgement and turn the key off.
Mind you, most people didn’t and still don’t. But then “ most people” aren’t really drivers, are they? They are users of the car as domestic appliance. Just look around you.
End of old bloke rant!

[fredgroves]

It's not about your fuel bill. If a million cars are automatically stopped for five seconds every day, every year... What is that in overall co2 reduction? That's what it's about.

[SRGTD]

It's not about your fuel bill. If a million cars are automatically stopped for five seconds every day, every year... What is that in overall co2 reduction? That's what it's about.

Spot on Fred.

Yes, that’s precisely what it’s all about - reduction in CO2 levels - and that’s the reason why the default for S/S is for it to be active. Also, if it was the other way found and the resultant emissions levels were higher, we’d be paying higher first year VED as I dare say many cars would move up into a higher CO2 band. VW would also be hit with heavier emissions-based fines (CO2 target is 95g/km in 2021 for a manufacturer’s fleet of new vehicle sales). VW, or any other manufacturer for that matter, wouldn’t be absorbing the cost of those higher fines - they’d be passing them onto the customer in the form of higher list prices for their cars.

[fredgroves]

Last time I checked vw were on course for a several billion euro fine at the end of 2021

[P6GTD]

So VW, just make it work in a nice, satisfying way on a GTI 245 DSG and I will be a happy driver. If your regular experience is only with manual cars, you may not realise why some people b!tch about it.
I had a manual S/S before this and thought it was great.
Anyway, I’m moving on from this topic.

[P6GTD]

So, after the last post I chickened out and reconnected “ the wire”
9 months on I still hate S/S.
Has anyone else disconnected the wire and run their car over a long period?
If so, was there any downside like shorter battery life, increased fuel consumption or warning lights?
I’m still trying to understand exactly what the downside of disconnection is.
If any techie knows, can they list exactly what consequences await the disconnector.
And to my PM correspondent, if you read this long string you can see where we got to in Dec 20.

[P6GTD]

Incidentally, at my last service the wire was still disconnected and the VW servicing garage did not come back to me with a fault or “ advisory” on collection.

[Finglonga]

OK. This is the solution. Get rid of the feature by disconnecting the wee wire on the battery.
Simples. I did it v shortly after getting my 7.5. Never looked back.

Remember that wire also monitors batter voltage when charging. It s not just for the S/S system.

[joe6]

I do not find s/s a problem on the 7.5 gti manual and from comments is only really an issue with dsg cars. I sometimes worry about the possible wear on mechanical components such as turbo and starter motor and wonder if the co2 saving is offset by more frequent component replacement that creates more co2?

[P6GTD]

It’s a DSG problem. 
I was quite happy when I had a manual car.
The main gripe is the unpleasant and obtrusive way it kicks in and out sometimes. And unpredictability which is absent with a manual.
You can only really understand this if you have owned both.