This may have been mentioned before somewhere but I have only today discovered a new feature of Stop Start. I was in a queue at the local recycling centre and every time i stopped, the engine cut out as normal. Usually when I see the queue beginning to move, I depress the clutch and the engine starts ready to move up a bit. This time I let the car in front move off first and the engine started without me doing anything. I thought initially it was a one off coincidence, but I tried it again and again, and each time the car in front moved off, the engine started automatically. Anybody else noticed this feature?

Sounds like Traffic Jam Assist if you've got that feature?? Though you've presumably got a manual gearbox so the car won't actually move forward on its own as well??

Edited 4 August, 20205 yr by CJJE

Its a standard SE Tech Manual, but that model has front parking sensors and the auto brake sensor for if you get too close to another car as standard. Not heard of Traffic Jam Assist.

Edited 4 August, 20205 yr by Smokeyjoe
spelling

Nah not any sensors, it's black magic.

 

Yeh, it's one of my favorite features too. I'd been driving the car for a few weeks before I twigged what was making the car start on it's own, I'd just assumed it was the the aircon on something else demanding power from the battery. Occasionally it'll get caught out but most of the time it's reliable.

 

I'm really not sure what makes it work. I have all the radar systems on my Octavia but only basic traffic alert on the Karoq and it works on both cars. I'm tempted to say it's the camera or light sensor because if I'm first in the queue at a particular T-junction and the lights across the road begin to change, my engine starts. Or as I say, it's black magic !

3 hours ago, Smokeyjoe said:

Its a standard SE Tech Manual, but that model has front parking sensors and the auto brake sensor for if you get too close to another car as standard. Not heard of Traffic Jam Assist.

A super feature I spec'd for my car it will keep you moving in stop start traffic. If you are stationery too long it will stop engine and restart when car infront moves, you hear this if you are not paying attention and then a gentle dab of accelerator gets you moving again.  Great for the motorway jams you invariably get in the UK.

50 minutes ago, MJ1 said:

A super feature I spec'd for my car it will keep you moving in stop start traffic. If you are stationery too long it will stop engine and restart when car infront moves, you hear this if you are not paying attention and then a gentle dab of accelerator gets you moving again.  Great for the motorway jams you invariably get in the UK.

 

That sounds like what I have, but as its a manual gearbox its only of limited use. Wonder why its on my car though as I did not spec it as an extra.

I think that the feature is only engaged when on cruise control. It is designed for low speed usage, as you say might be less useful with manual gearbox?

I was in the queue at the rubbish tip today and discovered the the engine would start if I just moved the steering wheel! Handy to start up without having to take your foot off the brake. 

1 hour ago, MJ1 said:

I think that the feature is only engaged when on cruise control. It is designed for low speed usage, as you say might be less useful with manual gearbox?

 

No, my cruise control was definately off.

I think that it uses the radar of the Front Assist to detect when the front car drove off.

On 04/08/2020 at 20:45, Gabi4 said:

I think that it uses the radar of the Front Assist to detect when the front car drove off.

Correct

 

Do you get messages on top of infotainment screen, offering details if you touch the message bar. If so see how many you can get, I’m upto 6 different reasons for start-stop

On 04/08/2020 at 19:15, Smokeyjoe said:

 

No, my cruise control was definately off.

OK so i went to the tip and I  noticed mine do this without cruise on. I guess I have never really paid attention to it. I did when using traffic Assist as was nervous about handing brake control to the car... So yes mine does the same.

Hi,  Mine doesn't have traffic assist and is DSG and it does this (I do have dynamic cruise control though - or whatever they call it) but today I did not have it turned on at all.  Took a drive today and it did it several times in a slow moving traffic queue. Quite good actually - some thought has gone into that little feature 🙂  Never noticed before as I usually disable Stop/Start and also, if it is active (and I fancy saving some emmissions at the expense engine bearing life and wearing out the starter motor / battery before it needs to be worn out),  I twiddle the steering wheel maybe 1/2 second before the radar realises the car in front is moving so it never needed to kick in previously.  

We have two models in the family.  An SEL manual and my Sportline DSG with ACC.  Mine does have this feature when the car in front moves off but not noticed this on the manual.  I thought it was linked to the ACC.  But my ACC doesn't activate if the battery is low.  (long story).  But the car still started when the car in front moved, so must be linked to another system.  The auto park brake system that applies the brake of it thinks you are going to hit something maybe?

I switch stop/start off every time I get in the car. Cant stand it.

+1

+2 

+3

I turn it on and off as needed on trip, often multiple times. It easy to reach and press the button.

Off at junctions and roundabouts and slow moving queue. On at traffic lights and in stop start traffic.

Normally leave it on, stops car slipping (DSG) clutch when stopped.

What is DSG slipping clutch?  That's a new one for me. 

 

Thanks 

Paul 

There is no 'DSG slipping clutch'  if you are stopped and using 'Autohold'  or if you do not want the brake lights on if your car has the brake lights on as some do when in 'Autohold' just put in 'N' and use the 'E-brake'.

(In the Kamiq / Scala the manual parking brake.)

Plus as it is a dual shaft gearbox with a clutch on each, one clutch is always ”slipping” all the time it is not in neutral or park.

I read a long discussion about thrust bearing wear and if it should be reduced, and this was the clinching argument in that one or other thrust bearing is always engaged and sometimes both when car is coasting  with gears disengaged  and engine at tickover

Edited 12 September, 20205 yr by kenfowler3966

One clutch is always fully "disengaged" with no clutch plate contact, a slipping clutch is just starting to bite (friction plates just making contact ) and this "slipping" causes heat and wear until fully engaged, typically as in when a car is sitting in drive but not moving, or when it initially moves off from a standstill or is ins slow moving traffic, so the main victim for this wear is the clutch on 1,3,5 &7 shaft, iirc thus overheating was the cause of the many early DSG failures, and there were lots of them.

The clutch is not in contact in this vehicle when stationary and hence is not slipping. It is completely disengaged until you apply some throttle as that is how the auto brake hold woks. It can be slipping in other cars such as my previous Yeti where you had to keep the footbrake applied when stationary or select neutral or park before releasing footbrake.

I do agree though that wear can occur when in very slow traffic such that the clutch has to slip to prevent the engine stalling.

I much prefer the wet clutch in my car though to dry clutch versions as wear is minimal to non existent in a wet clutch vehicle.

 

I read about a taxi somewhere which was at a huge mileage, 540k  I think, and still on original wet clutch and dsg. Dry clutch will wear, likely maximum life of 120k to150k if lucky. 

 

 

Edited 12 September, 20205 yr by kenfowler3966