The 4Matic AWD system explained
October 26 2021,
The coming winter will bring, as always, challenging road conditions and inclement weather. No matter if it's to get you to you home on poorly cleared roads or simply for your daily commute to work, Mercedes-Benz’s 4Matic all-wheel drive system will give you confidence and keep you safe this winter.
2 different systems for different needs
Mercedes-Benz offers 2 different 4Matic AWD systems depending on the model. The entry level 4Matic Variable AWD system is used in the CLA and GLA subcompact sedan and SUV and it operates in front wheel drive most of the time to prioritize fuel economy and stability but as soon as wheel slippage is detected, a center coupling closes and power can be split evenly between the front and rear axles in order to facilitate driving in deep snow or mud. The system used on the majority of the Mercedes lineup is the 4Matic Permanent AWD. This setup works by constantly splitting the engine’s torque between the front and rear wheels by a fixed ratio, which provides better performance and increased stability at all times. It is available on the C-Class, the E-Class, The S-Class, the CLS, the GLC, the GLE and the GLS.
3 AMG specific systems
Mercedes-AMG branded vehicles receive one of three 4Matic AWD systems that are specially developed to provide the performance and traction that is expected out of an AMG vehicle. The CLA AMG and GLA AMG rely on a modified version of the 4Matic AWD called the AMG Performance 4Matic Variable AWD. This system predominantly powers the front wheels, but a multidisc clutch and an AMG specific electrohydraulic control in the rear differential assure quick and efficient transfer of the engine’s torque to the rear wheels when driving spiritedly or on slippery roads. The AMG Performance 4Matic+ Variable AWD is used in the E-Class and the S-Class. This system allows for a seamless transition between AWD and rear wheel drive in order to provide traction and driving dynamics. The AMG Performance 4Matic Permanent AWD system is found in the C-Class, E-Class, GLC, GLE and the GLS. It uses a constant split of 31:69 between the front and rear axles on sedans and 40:60 on SUVs to provide power to every wheel at all times.
