Of course this is MB we are talking about, engineered like no other car.
Probably superior in operation but hellishly expensive to fix if it breaks. Don't know wether Rusty stocks too many of these clutches?

Hendrik
who wonders if other MB all wheel drive systems like the ML and G use the same principles

----- Original Message ----- From: "Alex Chamberlain" <[EMAIL PROTECTED]>
To: "Mercedes Discussion List" <mercedes@okiebenz.com>
Sent: Thursday, November 16, 2006 8:19 PM
Subject: Re: [MBZ] 4-Matic schematics...neato



Computer-controlled clutches of some kind inside the center
differential, making the front/rear torque allotment variable.  As
Craig points out, this is a far more complicated AWD approach than the
ones used at the time by Audi (a simple open differential with manual
either-or lockup) and BMW (a heat-sensitive viscous clutch like the
ones used on our engine fans).

Alex Chamberlain
'87 300D Turbo
'93 Isuzu Trooper

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