What does it do?

See here...

 

 

1 hour ago, gojoholo said:

What does it do?

 

Nothing you'll ever need to worry about in Hampshire .

 

(although we have snow in Gloucestershire again today... so maybe Hell is freezing over!)

Despite the comments in the linked thread above, some people during the recent snow fall are saying the steering response is noticeably slower, presumably to help prevent sudden steering inputs from breaking traction...

3 hours ago, gojoholo said:

What does it do?

 

It makes it snow - turn it off quick !!!

Throttle response softened.

DSG gear changes lower in the rev range.

Steering input weighted.

ABS relaxed.

Traction control relaxed allowing wheels to slip a little.

 

These are the things I perceived to change when I enabled snow mode in heavy snow last year in Hampshire!

On 23/01/2019 at 18:24, jasoncmiles said:

Throttle response softened.

DSG gear changes lower in the rev range.

Steering input weighted.

ABS relaxed.

Traction control relaxed allowing wheels to slip a little.

 

These are the things I perceived to change when I enabled snow mode in heavy snow last year in Hampshire!

Is allowing the wheels to spin not defeating the object of a 4x4 with traction control (I know it has to slip to some extent for the Haldex to kick in)

Traction Control / ASR that is nipping brakes is hopeless. Hopeless if you get moving and spin a wheel and the next thing a brake gets nipped.

Why Owners Manuals suggest when and where to 'switch off Traction Control' on basic cars, and the System really is no better just because there is Part Time AWD / Haldex fitted.

(TC off with Snow Chains on.)

1 hour ago, Platlet said:

Is allowing the wheels to spin not defeating the object of a 4x4 with traction control (I know it has to slip to some extent for the Haldex to kick in)

Per previous comment, the whole purpose of off-road or snow driving is to allow for slip be it when pulling away or braking. Otherwise when you are stuck in snow trying to get traction the car will brake essentially locking you in place. Switch off TCS and your wheel can slowly spin on idle and you can move the wheels to gradually gain traction and move.  Equally when braking an over zealous ABS system will simply not stop you and you keep rolling. Allowing wheels to lock and build snow in front of them aids the slowing process. I belive the Haldex clutch engagement it adjusted too to drive the rear wheels without the need for so much wheel slip.

Edited 25 January, 20197 yr by jasoncmiles
Correction

^ this.

 

When I got my first Haldex-equipped Skoda (2008 Octavia Scout) it snowed heavily whilst at work. When I came to leave I couldn't understand why the car was seemingly stuck.

 

Turning off the ESC allowed the Haldex to do it's thing and it drove straight off.