What is 4matic?

Khodrocar - Nearly all Mercedes-Benz vehicles that feature this system are paired with an automatic transmission as the default transmission. The first design of 4Matic system was introduced in 1987 on the W124 series (E Class) saloons (four-door) and estate (station wagon) cars. It was available with the 2.6 L and 3.0 L 6-cylinder petrol (gasoline) and diesel engines.

Some newer versions of 4Matic are true AWD as the system remains active at all times. Sophisticated engine management and ABS systems control the amount of torque transferred to each wheel allowing the system to be effective at any speed.

The first generation 4Matic system was originally a complex electronically controlled system with automatically engaging four-wheel drive (4WD), the system employs locking central and rear differentials to provide additional traction in slippery conditions. The centre differential, also known as the transfer case, contains two clutches. Each hydraulically enabled clutch is controlled separately to allow for three modes of operation: 2WD (mode 0) where 100% of available torque is available to the rear axle while the front axle is disconnected, and two 4WD modes which allow for 35/65 front/rear axle torque split (mode 1) or 50/50 front/rear axle torque split (mode 2).

The second generation of 4Matic was reintroduced on the W210 series in 1998/1999. Available only with left hand drive, the cars were again manufactured at the Magna-Steyr plant in Austria. The second generation of 4Matic utilized a full-time 4-wheel drive system with three open differentials front, centre and rear. Traction control is achieved using ETS (Electronic Traction System). This employs the ABS system with additional valves to monitor and then partially brakes any wheel which loses traction. This much simpler system is also featured in the Mercedes-Benz M-Class SUV.

The second and third generation 4Matic systems are currently available on the A-Class, B-Class, C-Class, E-Class, G-Class, S-Class (and former CL), GLA-Class, GLK-Class ("GLC"), ML-Class ("GLE"), GL-Class ("GLS"), CLA-Class, CLS-Class, Vito and Viano (North American name; Metris), and Sprinter 4x4 although certain right-hand-drive models are not available due to the position of the steering column. These later systems include engine and automatic stability controls.