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w204 C-class(Edit)

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Figure: Mercedes-Benz C-class w204 4matic
mercedes-benz-c-w204-4matic

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W205 C-class(Edit)

Figure: Mercedes-Benz C-class w204 4matic
mercedes-benz-c-w205-4matic

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W124 4matic(Edit)

Automatic all wheel drive. Normally rear wheel drive vehicle. Power is progressively transferred via multi-plate hydraulic transfer clutch to front wheels when slipping occurs. Torque distribution in this case is 65% to 35% rear to front. ABS sensors are used to detect wheelspin. If more traction is necessary, computer locks another clutch in rear axle. If brake pedal pressed, all clutches disengage to allow the ABS to work properly. On takeoff/acceleration the front axle normally engages, proactively, regardless whether wheel slip is detected or not.

Figure: mercedes benz 4matic w124
mercedes-benz-4matic-w124

Figure: Mercedes-Benz 300E 4matic 1989 front differential
mercedes-benz-300e-4matic-1989-front-differential

Figure: Mercedes-Benz 300E 4matic 1989 transfer case
mercedes-benz-300e-4matic-1989-transfer-case

Figure: Mercedes-Benz 300E 4matic 1989 transfer case parts
mercedes-benz-300e-4matic-1989-transfer-case-parts

Do you own Mercedes W124 4Matic? Can you please make a photo of the car's 4x4 transmission, switches, dashboard lights, etc. and send it to ?

W210 E-class, R-class(Edit)

Full-time all wheel drive with 3 open differentials. Torque distribution 35% front / 65% rear via planetary gear. Electronic traction control applies brakes to the wheels that are about to spin and distributes torque from wheels that slip to the wheels with traction.

Figure: mercedes benz 4matic w210
mercedes-benz-4matic-w210_xxx

Figure: mercedes benz 4matic w210
mercedes-benz-4matic-w210

Figure: mercedes benz 4matic w210
mercedes-benz-4matic-w210_x

Figure: mercedes benz 4matic w210
mercedes-benz-4matic-w210_xx

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G-class 461 ...-1991(Edit)

Part-time all wheel drive. Manually lockable differentials in the front and rear axles.

Figure: Mercedes-Benz G-class 461 transfer case
mercedes-benz-g-460-transfer-case

Figure: Mercedes-Benz G-class 461 front differential
mercedes-benz-g-461-front-differential

Figure: Mercedes-Benz G-class 461 rear differential
mercedes-benz-g-461-rear-differential

Figure: mercedes benz g class 460
mercedes-benz-g-class-460

Figure: mercedes benz g class 460 levers
mercedes-benz-g-class-460-levers

Do you own Mercedes G-Class 461 ...-1991? Can you please make a photo of the car's 4x4 transmission, switches, dashboard lights, etc. and send it to ?

G-class 463 1991-...(Edit)

Full-time all wheel drive with 3 manually lockable differentials (buttons). Differentials lock after the vehicle has moved some distance. 2.16 low gear ratio.

Figure: MB G type 463 transfer case
mercedes-benz-g-463-transfer-case

Figure: Mercedes-Benz G-class 463 transfer case
mercedes-benz-g-463-transfer-case

Figure: Mercedes-Benz G-class 463 front differential locking actuatur
mercedes-benz-g-463-front-differential-locking-actuator

Figure: mercedes benz g class 463 differential lock buttons
mercedes-benz-g-class-463-differential-lock-buttons

Figure: mercedes benz g class 463 g550 differential lock buttons
mercedes-benz-g-class-463-g550-differential-lock-buttons

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GL(Edit)

Figure: Mercedes-Benz GL-class front differential
mercedes-benz-gl-4matic-front-differential

Figure: Mercedes-Benz GL-class rear differential
mercedes-benz-gl-4matic-rear-differential

Figure: Mercedes-Benz GL-class transfer case
mercedes-benz-gl-4matic-transfer-case

Figure: mercedes benz gl x164
mercedes-benz-gl-x164

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ML(Edit)

Full-time all wheel drive with 3 open differentials. 4ETS electronic traction control, that applies brakes to wheel, that is about to spin, thus transferring torque to wheels, that have traction. M-Class 4ETS kicks in up to about 36 MPH (60 km/h) and if engagement conditions are maintained beyond 60 km/h during acceleration, control is effective to up to 48 MPH (80 km/h).

Two-speed AWD variant of the Borg-Warner 44-06 transfer case. Button-operated low-range locks to 50/50 torque split. (2,64:1 low gear).

Figure: mercedes benz m
mercedes-benz-m_x

Figure: Mercedes-Benz ML-class front differential
mercedes-benz-ml-4matic-front-differential

Figure: Mercedes-Benz ML-class rear differential
mercedes-benz-ml-4matic-rear-differential

Figure: Mercedes-Benz ML-class transfer case
mercedes-benz-ml-4matic-transfer-case

Figure: mercedes benz ml w163 transsmision
mercedes-benz-ml-w163-transsmision

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ML W166(Edit)

Figure: mercedes benz ml w166
mercedes-benz-ml-w166

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w221 S-class(Edit)

Figure: Mercedes-Benz S-class 430 4matic transfer case
mercedes-benz-s-430-4matic-transfer-case

Figure: Mercedes-Benz S-class
mercedes-benz-4matic-w221

Have you seen a better description of Mercedes W221 S-Class on the web? Please send us the link to or post it in a comment below!

There are 10 comments
Fernando
November 27, 2016 - 04:31

the GL X164 and the ML W164 w/offroad package have all wheel drive with 4ETS plus Center and Rear Diff Lock plus 2 speed transfer case

OliverTwist
September 06, 2015 - 10:42

Is there any reason why there's no 4Matic option for V12 motors in Mercedes-Benz S-Class?

Reply to OliverTwist
Fernando
November 27, 2016 - 04:27

The Engine is so large, that they can't fit the front diff below it. Plus (and this part i'm guessing) all that power they probably haven't done a diff that can handle it in a small casing

Trades46
June 19, 2012 - 03:43

The C-Class W204 has the same system as the ML shown above, but without the 2-speed transfer case. Instead it employs a multi-disc limited slip diff integrated into the 7G-Tronic that is set bias 45:55. Bias could be varied 70:30 to 30:70. Other than that, the system is nearly identical: Front and Rear open diffs with 4ETS.
This system is also employed on the GLK (non-off-road variant) and W212 E-Class. I believe the W218 CLS also shares the same underpinnings.

Mega
November 06, 2010 - 19:33
4Matic

Mercedes 4Matic has at least center multi-disc clutch LSD, which is not described here. It doesn't only rely on 4ETS to control slipery. This is very useful in low speed off-road condition.

Reply to Mega
George
January 14, 2011 - 19:24
Re: 4Matic

The newest design 4matic has changed the center differential to a 45/55 split, and has an initial pre-load clutch.
There isn't any variable clamp load to regulate the differential.

Mercedes probably could have achieved equivalent traction with the old transfer box by installing a torsen differential in the rear axle.

George
August 16, 2010 - 22:50

That W124 transfer case is one of the most sophisticated, probably ever.
You can have rear wheel drive [0/100, via a locked up center differential and open transfer clutch]
Four wheel drive [35/65, via an open center differential lockup clutch, and closed transfer clutch]
Rigid/fixed four wheel drive [both clutches closed, for getting yourself 'unstuck']

(if the electronics and rear transfer clutch were modernized, you could also have a variable distribution to the front)

Reply to George
abc
December 08, 2014 - 00:38

do u mean 4matic ? 4matic fails here www.youtube.com

felix
March 22, 2010 - 02:58

If possible, please show some detail about the AWD system of S-E-C class that base on front wheel drive.
Thanks

Reply to felix
awdwiki.com
June 09, 2010 - 21:55

Never heard of a four wheel drive SEC-class.

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