Hi all,

 

I'm still getting used to my very recently purchased Superb. 

 

The Stop/Start has never activated thus far, however I've only driven it for about 3x1 hour (half motorway/half town). I tried reading around for common issues and it seems that;

1. the car not being warm enough
2. Battery Issues

are the most likely culprits.

 

My questions are:

 

Is there anything else it's likely to be?

 

Does anyone know what temp the car needs to be for the Stop/Start to work? 

 

Is there a way to test the battery to see if that is what's causing the stop/start to not work?

 

Thanks for any ideas

 

 

When I bought my 2014 facelift Superb it had been in the dealer system for 8 months of the cars 14 mount life (no one wanted a big petrol back in 2015!) - so probably hadn't had a good run for some time - The stop/start took many days to even work at all. The algorithm for the stop/start to work is a complex one involving battery condition, electrical load and many sensors (movement, car angle, temperature, pedal positions, doors, seat belts etc..

 

The stop start has recently stopped working on mine and basically the original battery is now on it's way out and is booked in for replacement tomorrow as it happens, If yours is on it's original it may be worth swapping now anyway. Make sure it's an EFB or AGM and it will need to be coded.

 

VCDS may be able to tell you what's stopping stop start - I don't have it but I'm sure others will advise. Infact a previous owner may have disliked S/S and disabled it through VCDS by changing  the required voltage setting too high.

 

Does everything else work ok - eg cruise control? Things like clutch pedal sensor could cause both cruise and s/s to fail.

 

PS on mine when S/S is working the car doesn't have to overly warm for it to function.

 

[EDIT]Previous thread that is worth reading:- 

 

 

Edited 18 January, 20215 yr by bigjohn

30 minutes ago, bigjohn said:

 

When I bought my 2014 facelift Superb it had been in the dealer system for 8 months of the cars 14 mount life (no one wanted a big petrol back in 2015!) - so probably hadn't had a good run for some time - The stop/start took many days to even work at all. The algorithm for the stop/start to work is a complex one involving battery condition, electrical load and many sensors (movement, car angle, temperature, pedal positions, doors, seat belts etc..

 

The stop start has recently stopped working on mine and basically the original battery is now on it's way out and is booked in for replacement tomorrow as it happens, If yours is on it's original it may be worth swapping now anyway. Make sure it's an EFB or AGM and it will need to be coded.

 

VCDS may be able to tell you what's stopping stop start - I don't have it but I'm sure others will advise. Infact a previous owner may have disliked S/S and disabled it through VCDS by changing  the required voltage setting too high.

 

Does everything else work ok - eg cruise control? Things like clutch pedal sensor could cause both cruise and s/s to fail.

 

PS on mine when S/S is working the car doesn't have to overly warm for it to function.

 

[EDIT]Previous thread that is worth reading:- 

 

 

 

 

Thank you so much for your detailed reply. 

 

Everything else works as it should (apart from 3x aftermarket front parking sensors). It's a DSG so no clutch pedal. I'll check tomorrow if it's the original battery.

 

Which battery are you going for and how much are you paying for the replacement and fitting? I'm assuming it's not as easy as just swapping the battery yourself? - I think I read somewhere it needs to be coded in...

 

Edited 18 January, 20215 yr by 00000000001

I'd normally change myself but as it needs coding I'll let my trusty local garage do it. It was mentioned that a Yuasa will be fitted, although when I went in today the wrong one had been delivered - back tomorrow!

17 hours ago, bigjohn said:

I'd normally change myself but as it needs coding I'll let my trusty local garage do it. It was mentioned that a Yuasa will be fitted, although when I went in today the wrong one had been delivered - back tomorrow!

What did it set you back?

Tayna batteries do an Exide 096 AGM battery for our cars for just shy of £100 delivered. Coded in myself using vcds. 

 

Be sure not to get ripped off.

2 hours ago, 00000000001 said:

What did it set you back?

Just had bill - all in £99.84. Mine is only the teeny 1.4 petrol though

Edited 19 January, 20215 yr by bigjohn

My car is a happy bunny again with stop start working well again.

 

it was starting ok before but clearly battery was goosed as starter now spins sooo much faster.