I have had a 150ps diesel dsg Yeti for 23k miles now, and for the first time, in heavy traffic this morning the engine stalled as I released the footbrake.

 

Car was in manual first gear mode, road was flat. released the brake without accelerator as normal to creep forward with first gear fully engaged and the engine just stopped. Restarted and it didn't do it again.

 

No real risk but slightly concerning as I understood this should never happen?

Did you have to restart manually. Or was it just that stop / start was enabled and functioned? 

If it was a one off on a cold engine warming up, at minimum revs, might just have been unlucky timing.

applied power just as engine was adjusting for temperature rise, or a thermostatic system (anything from a fan to heated item cut in)

 

Bit like the old days when you put in a manual choke and hoped engine wouldn't splutter for next few seconds, until revs were up again

? Why in manual 1st gear and not D and 1st gear, do you use manual in heavy traffic? 

Manual restart, had to select P and then restart with key.

 

Interestingly stop start had been active, but after the restart it switched that off.

1 minute ago, Offski said:

? Why in manual 1st gear and not D and 1st gear, do you use manual in heavy traffic? 

Because it almost instantly changes to second which then moves the car too fast for the traffic speed, so you have to apply the footbrake to slow down which means the clutch has to slip to keep the engine running.

 

In very slow crawling traffic the car is much happier in first gear, and it only takes a push on the lever back to D once traffic starts moving again.

 Whilst I have never used manual mode in higher gears apart from testing it works, I find I often resort to manual mode in traffic, mainly using first and second gear. I can read the road ahead and know what is going to happen, the gearbox can't and often hangs on to the wrong gear. It is still much easier to drive in traffic in this manner than a manual car with all the clutch work. If I stop in manual second it starts again in first and stays there until I decide otherwise.

OK, I have never had issues, but then I have one foot, drive only dsg or autos. I use manual for driving on ice or snow. Never in traffic. 

Well, if we're talking "driving techniques", I'm quite capable of letting my 1.9TDi lug along at idle/anti-stall as high as 3rd gear in traffic.

That’s fine as long as it’s not a dsg and you are having to brake to keep the speed down. If you are using the brake to slow the car below engine idle speed in that gear it must be slipping the clutch. This is particularly bad practice on the dry clutch petrol dsg’s. Whilst the dsg will change down to second from third it will not normally go into first unless completely stopped or a lot of well when pulling away from near standstill when in second

@kenfowler3966  Sorry but I thought you were asking about a 6 speed wet clutch DSG. 

But even with a DQ200 7 speed dry clutch i have never experience a stalling one, or issues with the car needing the use of brakes to have it crawl in traffic.

In hot summer i have put DQ200's in 'S' to stop them going up and down 1st to 2nd at crawling speeds.

I do have the wet clutch, just suggesting that not using manual at very low speeds is even worse with a dry clutch.

Your traffic must be much faster moving? In first gear at tickover it just about matches the traffic speed here at times. Once in second gear at tickover I often have to keep braking to a slow down or drive too fast and have to keep stopping and starting.

 

I could use S, I suppose; just very rarely think of it except for the odd overtaking.

As much as an hour to cover maybe 10 miles into or through Glasgow, Edinburgh or Aberdeen is certainly not fast moving traffic.

It is just as well that there are so many ways a DSG can be driven.