4Matic

4Matic (stylized as 4MATIC) is the marketing name of an AWD four-wheel drive system developed by Mercedes-Benz. It is designed to increase traction in slippery conditions. The four-wheel-drive system was developed in conjunction with Steyr-Daimler-Puch (currently Magna Steyr), who manufactured the Mercedes-Benz G-Class in Austria.

Nearly all Mercedes-Benz vehicles that feature this system are paired with an automatic transmission as the default transmission; the name is a portmanteau of 4-wheel drive and automatic. 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.