I wonder if I might pick everyone's brains on DSG-equipped vehicles, please? I was out in my wife's "bear" today (which is the 150 bhp diesel with a DSG box). In town, the stop-start cut in several times. If anything, the Kodiaq stop-start seems far more willing to cut-in than it was on several VW Sharans I'd previously had, but they were all manuals. That got me thinking...

 

...is it GOOD for the DSG gearbox? Is it better for the gearbox and clutches, when you stop (say at traffic lights) to:

 

(a) leave it in gear and just let the stop-start to do its thing;

(b) put it into neutral;

(c) disable the stop-start and leave it in gear whilst idling?

 

I'm not concerned with the starter motor or ring gear, or anything like that, this just relates to what's best for the DSG system.

Let it do it's thing, or disable it. There's absolutely no need to faff around with putting it into neutral etc.

Do not worry about the DSG.

Do not worry about the battery as the stop/start will disable it's self when needed.

 

You have the choices for different situations / locations.

 

In D and let stop/start work. Have auto hold work.

If you want put stop/start off.

 

If you did want the car stopped in N and the parking brake on you can do that.

If you want it in N and the engine running have that.

I leave mine in gear, and let the stop/start and autohold get on with their jobs.

 

If you are using autohold, and are stopped, do NOT suddenly change to neutral, as that will release the autohold and the call might roll forward or backward.

Edited 21 March, 20215 yr by DaveMiller

I remember reading somewhere that when auto hold kicks in, the DSG clutch will be disengaged.

52 minutes ago, linni said:

I remember reading somewhere that when auto hold kicks in, the DSG clutch will be disengaged.

That certainly seems to be the case.  In an older torque-convertor automatic, there’s some “drive” still being applied while you’re stopped and in gear, so it’s sensible to move to neutral for longer waits.  You can see the drag when you put it in gear, because the revs drop. That doesn’t happen with the dsg.

Actually with the 6 speed DSG the clutch remains partially engaged while stationary in D. The clutch is (and cannot) ever be fully disengaged.

 

Since the clutches are multi plate clutches lubricated with oil then there is always a bit of drag even when "disengaged".

 

But since they are lubricated then the wear is so minimal and that's why they have an oil change interval.

For me it’s:

 

(a) Stop / Start always in the OFF position (what a piece of Con Shiite) Theoretically has a Rule Set, but that’s nonsense in the real world

(b) when stopping, hill hold works perfectly with clutches disengaged and revs drop to tickover (unlike some cars that hold for 2 seconds then want to drag and go)

(c) when stopping in traffic and/or stopping for more than a few seconds like a long light, pull parking parking brake to switch off brake lamps and disengage hail hold.

(d) take off is seamless with a gentle right foot - possibly with Sport mode selected at certain junctions, especially uphill

We're all armchair experts. Nobody has tested each scenario to the point of destruction so I'm afraid there are no stats to backup anyone's theory.

 

Here's my tuppence worth.

 

1: The DSG boxes used in the Kodiaq all have as good a reliability record than any other gearbox, so as e-root says above, it really doesn't matter - just drive the car whatever way you want.

 

2: Do a google search for how to drive a DSG and you'll see vast quatities of comments from user forums ( more armchair experts ). You'll find the odd magazine who've attempted to explain what DSG is, but they don't tell you how to drive it - they assume that's a given. ( it is !)

 

3: But most important of all, you won't find any info from the manufacturer on how best to drive a DSG.

 

Conclusion? Folk looking for problems where problems don't exist.

 

 

Edited 21 March, 20215 yr by Guest

@BoxerBoy   In your (b)  are you really talking about 'hill hold' (assist)  or is it 'autohold' you mean?

Same in (c),

is that 'Autohold' you disengage and not Hill (hail) hold assist ?

Edited 21 March, 20215 yr by e-Roottoot