Quattro spinning wheels

nemohm · 01-23-2008, 02:47 PM

There’s been more than one occasion my front (both) wheels spinning, rear wheels not moving.

I’m puzzled – this should not supposed to happen on Quattro (with all Torsen and other-visco? differentials??

What is the EDL for, if allows spinning?

(I'm wondering what happens on a dyno with only front wheels on rollers?)

**Badger61** · 01-23-2008, 02:59 PM

EDL(electronic diff lock) has to see a wheel revolving faster than the opposite wheel to work,via the wheel speed sensors, the system will brake the spinning wheel to slow it and give more drive to the gripping wheel, also if the rear wheels have more grip in this situation the central differential(previously known as torsen) will apply more to the rear.

nemohm · 01-31-2008, 10:44 AM

It seems to me that only

quattro generation III (V8)

is immune to "front axle loses traction" event.

All other Quattro generations could get in trouble.

01-23-2008, 02:47 PM	#1 (permalink)
nemohm Newbie Join Date: Jan 2008 Posts: 6 Gallery: (0)	Quattro spinning wheels There’s been more than one occasion my front (both) wheels spinning, rear wheels not moving. I’m puzzled – this should not supposed to happen on Quattro (with all Torsen and other-visco? differentials?? What is the EDL for, if allows spinning? (I'm wondering what happens on a dyno with only front wheels on rollers?)

01-23-2008, 02:59 PM	#2 (permalink)
Badger61 Super Moderator Join Date: May 2007 Location: Hertfordshire Posts: 311 Gallery: (0)	EDL(electronic diff lock) has to see a wheel revolving faster than the opposite wheel to work,via the wheel speed sensors, the system will brake the spinning wheel to slow it and give more drive to the gripping wheel, also if the rear wheels have more grip in this situation the central differential(previously known as torsen) will apply more to the rear. __________________

01-31-2008, 10:44 AM	#3 (permalink)
nemohm Newbie Join Date: Jan 2008 Posts: 6 Gallery: (0)	It seems to me that only quattro generation III (V8) is immune to "front axle loses traction" event. All other Quattro generations could get in trouble. Last edited by nemohm : 02-01-2008 at 09:27 AM.

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