BMW (English, Русский)

3-series E30 325iX 1988-1992

Full-time all wheel drive. Viscous coupling locking center differential with torque split 37% front / 63% rear. The viscous coupling is integrated into the planetary gear center differential. viscous coupling locks the differential when wheel slipping occurs and transfers up to 90% of torque to the axle that has traction. Viscous coupling locking rear differential distributes torque between the rear wheels.

Figure: BMW E30 325iX transfer case
bmw-325ix-e30

Figure: bmw 325ix e30
bmw-325ix-e30_x

Figure: BMW 325iX
bmw-325ix-e30_xx

Figure: bmw 325ix e30
bmw-325ix-e30_xxx

Figure: bmw 325ix e30
bmw-325ix-e30_xxxx

See also: Viscous coupling

See also: Viscous coupling locking center differential test

You have better pictures or videos of Bmw 3-Series E30 325Ix 1988-1992 that you can contribute? Please send them to !

3-series E46 X models 1998-2006

Full-time all wheel drive with all free differentials. 38% front / 62% rear torque distribution thru planetary gear. ADB-X (Automatic Differential Brake) electronic traction control performs functions of locking differentials.

Figure: bmw 3 e46
bmw-3-e46_x

Figure: bmw 330xi e46 transmission
bmw-330xi-e46-transmission

Figure: bmw 330xi e46 transmission
bmw-330xi-e46-transmission_x

Do you think this information about Bmw 3-Series E46 X Models 1998-2006 is incorrect? Please send us what you know to or leave a comment below.

3-series E90 X models 2006-...

xDrive.

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5-series E34 525iX 1991-1996

Full-time all wheel drive. Torque split 36% front / 64% rear. Computer controlled system using the ABS sensors to detect wheel slip.

The E34 system exists in 2 generations with a major difference:

Generation 1 has separate control unit which control electromagnetic semi-wet multiplate disk clutch in centre and electrohydraulic wet rear differential. It recieves ABS wheel sensors data signals from special, modified ABS unit. Front differential open. In production from april 1991 up to september 1993.

Generation 2 has ABS/ASC+T unit which controls semi-wet electromagnetic multiplate disk clutch in centre and an open differential rear through rear wheels brakes (ABD). It also controls throttle. Front differential open. In production from October 1993 up to end of production.

Most components looks very similar to 325ix E30 models but are unique parts.

Figure: BMW 525iX E34 - 1st generation
bmw-525-ix

Do you think this information about Bmw 5-Series E34 525Ix 1991-1996 is incorrect? Please send us what you know to or leave a comment below.

5-series E60/E61 2004-...

xDrive.

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X1 2009-...

xDrive.

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X3 2003-...

xDrive.

Figure: bmw x3
bmw-x3

Do you own Bmw X3 2003-...? Can you please make a photo of the car's 4x4 transmission, switches, dashboard lights, etc. and send it to ?

X3 2011-...

xDrive.

xDrive with Dynamic Stability Control (DSC) and Hill Descent Control (HDC) as standard

Do you own Bmw X3 2011-...? Can you please make a photo of the car's 4x4 transmission, switches, dashboard lights, etc. and send it to ?

X5 1999-2004

Full-time all wheel drive with all free differentials. 38% front / 62% rear torque distribution and ADB-X (Automatic Differential Brake) electronic traction control performs functions of locking differentials. Hill Descent Control (HDC).

Do you think this information about Bmw X5 1999-2004 is incomplete? Please send us what you know to or leave a comment below.

X5 2004-2007

xDrive.

Do you own Bmw X5 2004-2007? Can you please make a photo of the car's 4x4 transmission, switches, dashboard lights, etc. and send it to ?

X6

xDrive.

The same as X5 and other xdrive BMWs with the added benefit of rear axel torque vectoring on all models.

Do you think this information about Bmw X6 is incorrect? Please send us what you know to or leave a comment below.

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There are 4 comments
Alex
January 19, 2015 - 09:17

Hello,

I've found more info on Xdrive. You may want to publish this on the site.

www.google.ro/url?sa=t&rct=j&q=&esrc=s&source=web&cd=8&ved=0CE0QFjAH&url=https%3A%2F%2Fwww.press.bmwgroup.com

mladenko
May 17, 2014 - 00:14

Quattro is better

Reply to mladenko
mpx14
April 18, 2015 - 09:56

Quattro is a marketing term and applies to a range of different systems. Some better then others.

adrian
January 07, 2014 - 14:14

exista bmw e39 4x4?

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