My suddenly troublesome Superb is 2014, 64K miles 4x4 Tour de France, manual box, lovely car.

 

About  week ago the stop start function stopped occurring and the engine runs while in traffic with the engine hot etc. when it would normally shut down until the clutch is depressed.

It only did this when towing, but always worked while doing normal duties.

So; what might have gone wrong?

It's not a big deal, but irritating that it does not work at all.

Switching the function on/off using the button by the gear lever does nothing to change this failure.

 

Sort of at the same time the battery tries hard to start the car from overnight cold, and it's having a new battery (AGM) tomorrow, just mention it just in case it has something to do with the car.

 

Everything else works on the car, no dash lights etc.

Hope someone can help please!

Graham.

Not an expert on this as my car is an 58 plate and doesnt have S/S but sounds like a battery issue. I know these Stop/Start systems shut down if the battery is low in charge and if  you have the original battery it may be due a replacement.

I just had to change my battery as it has been struggling to start with this colder and i was stranded a couple of times because there had been too much of draw on it with a short journey. The battery was replaced 4 years ago for the same issue when starting sometimes. See if you can get the battery tested somehow. 

One thing i can tell you is that batteries are a lot cheaper on line than going through GSM, Europarts and Halfords.

Hi, mine had not been working but on changing the battery it resumed normal service. Please let us know if you're new battery has the same result.

Thank you both.

Read, after posting, that a poor battery will make the car drop stop/start.

New battery tomorrow morning, £170 fitted. Didn't fancy fitting it incase I lost god knows what code for this that and everything in the universe!

 

Skoda dealer quoted £270 inc fitting but could not promise a fitting until late next week (maybe) if they can fit it in....

 

The new battery arriving for tomorrow is a Silver Bosch AGM with a 5 year warrantee.

Fingers crossed, but I think the new batt will fix it.

Will let you know!

Graham.

You should be happy is not working. I turn mine off with vcds right after purchase.

To @911hillclimber - I think that the Problem is faulty battery

 

To @LuPuS - Witch method in "VCDS" do You use to turn off "Start/Stop"-System?

11 minutes ago, tuningmania said:

To @911hillclimber - I think that the Problem is faulty battery

 

To @LuPuS - Witch method in "VCDS" do You use to turn off "Start/Stop"-System?

 

19 - can gateway
Long adaptation - 0A
drop menu - fatiguedetection/rest assist
channel 13
you need to put: C820C8 - but you can't type it i. You need to copy that from somewhere else - ctrl+C, ctrl+V.
Save
 

temperature should change from -50C to 50.

To @LuPuS - I will try this after few days..

Busy day, and frustrating getting the battery sorted.

 

All done now:

Garage at first could not fit the AGB spec Bosh ordered as they needed the radio/security code, and only Skoda can give me that for them.

So, drove all the way back on the old original battery.

Called Skoda dealer who said this was so, and for £20 they could unlock the radio system after the new battery was installed. 

Nice, you have to pay to have YOUR car 'unlocked', that niffed me off. They reluctantly agreed to squeeze me in tomorrow pm to have this done, so i was forced to book it in.

All VAG products are this way apparently.

 

Back to the garage, battery fitted in 5 mins and off I drove.

The car caught-up with the tyre pressure sensors AND the radio/sat nav etc all WORKED.

 

Went through the car, locking works, radio, lights etc all ok, and the stop-start function works too.

 

Thus, job done, saved £50, but, as ever, NOTHING IS SIMPLE ANYMORE.

 

Now with fresh Dunlops and a fresh battery life should be back to normal with the car.

Never visit that lying Skoda dealer again.  They should know better than to make something up that is so easily disproved.

2 hours ago, 911hillclimber said:

Busy day, and frustrating getting the battery sorted.

 

All done now:

Garage at first could not fit the AGB spec Bosh ordered as they needed the radio/security code, and only Skoda can give me that for them.

So, drove all the way back on the old original battery.

Called Skoda dealer who said this was so, and for £20 they could unlock the radio system after the new battery was installed. 

Nice, you have to pay to have YOUR car 'unlocked', that niffed me off. They reluctantly agreed to squeeze me in tomorrow pm to have this done, so i was forced to book it in.

All VAG products are this way apparently.

 

Now with fresh Dunlops and a fresh battery life should be back to normal with the car.

 Don't know why you needed that code. I swapped mine on Monday with minimum time off power and the system didn't need any code at all. suspect there is a hold up battery in the radio to maintain a short period without power supply. 

Radio code is not really a problem any more. I would hope that whoever fitted the new battery coded it to the car though. AGM batteries need to be coded in so that the battery manager in the start/stop system can keep it in good condition.

The place that installed the battery is a large tyre, maintenance place with 10 bays, so I'll trust they have it right!

If not, what would be a tell tale sign of all is not well?

The first thing they asked after the car reg was if it had stop start.