Can anyone explain how 4 motion works?

prof · Nov 18, 2005

dexteruk said:

i've driven a mk2 with haldex and selectable 2wd/4wd, was amazing the difference in how much extra power the car will take with the 4wd system operating compared to 2wd.

i knew there would be a difference in corners or slippery surfaces, but even on dry tarmac in a straight line you could feel a massive reduction in torque steer etc.

VAG do tend to use the terms Syncro, 4Motion and Quattro pretty much willy-nilly (think that's the first time i've used that term on here

Audi used Quattro to describe their original setup - which was a torsen diff, then on the TT they use Quattro to describe the Haldex system, which vw call 4 motion, except some 4Motion VWs actually are Torsen (so they are Quattro) and some later Syncro VWs actually use Haldex IIRC

soooo

as a general rule

Syncro = Viscous Coupling
4Motion = Haldex
Quattro = Torsen.

except when 4motion is torsen, quattro is haldex etc...
Click to expand...

4x4 is needed a tad more when you have 500bhp i guess

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Can anyone explain how 4 motion works?

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Can anyone explain how 4 motion works?

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