The 4-speed automatic transmission Mercedes 722.3 or W4A040 has been produced since 1981 and was installed only on large models of the German concern, that is, from E-Class and above. The transmission was combined with engines up to 6.0 liters and 570 Nm of torque.
Mercedes-Benz is a trade mark and a company of the same name, a manufacturer of premium cars, trucks, buses and other vehicles, which is part of the German concern Daimler AG. It is one of the most recognizable automotive brands in the world. Mercedes-Benz is headquartered in Stuttgart, Baden-Württemberg, Germany.
The index of each gearbox consists of two unequal parts separated by a dot:
- The three numbers on the left side indicate the name of the specific family 722, 724 and 725.
- The number on the right side indicates the position of the gearbox in the series: the larger, the newer.
The 4-speed automatic transmission Mercedes 722.4 or W4A020 has been produced since 1981 and was installed on many of the most popular rear-wheel drive models of the German concern. This transmission is designed for engines up to 3.0 liters and 250 Nm of torque.
The 5-speed automatic transmission Mercedes 722.5 began to be installed in 1990, but only on the Gelendvagen SUV, and other models of the concern received it four years later. The transmission is the first automatic transmission with so many gears and electronic control.
The 5-speed automatic transmission Mercedes 722.6 was first shown in 1996 and almost immediately became widespread on models from many manufacturers. This transmission is capable of handling the enormous torque of V8 or V12 engines.
The Mercedes 722.7 or W5A180 5-speed automatic transmission was shown in 1998 and was intended only for the A-class model and the Vaneo compact van, created on its basis. This front-wheel drive transmission is combined with engines up to 1.9 liters and 205 Nm of torque.
The Mercedes 722.9 or NAG2 7-speed automatic transmission has been produced since 2003 and is installed on most of the group’s models, gradually giving way to the 9G-Tronic. All AMG versions are equipped with the SpeedShift MCT modification with a clutch instead of a valve body.
The 9-speed automatic transmission Mercedes 725.0 or NAG3 was shown in 2013 and since then has been gradually spreading throughout the entire model range of the German concern. This transmission is capable of handling almost any engine torque up to 1000 Nm.
The 7-speed robotic gearbox 724.0 or Mercedes 7G-DCT has been produced since 2011 and is installed on almost all front-wheel drive models of the concern, such as the A-Class and B-Class. This preselective robotic gearbox was created together with Getrag and has a lot in common with the 7DCT300.
The 7-speed preselective robotic gearbox Mercedes 700.4 or AMG SpeedShift DCT has been produced since 2009 and is installed only on the most powerful supercars of the German concern such as SLS and AMG GT. This robotic gearbox is only a modification of the Italian Getrag 7DCL750 gearbox.
The 8-speed robotic gearbox 724.1 or Mercedes 8G-DCT has been produced since 2019 and is installed on front-wheel drive and all-wheel drive models of the MFA2 platform such as GLA-Class and GLB-Class. This preselective robotic gearbox with two wet clutches is produced at a plant in Romania.
The Mercedes 722.8 CVT or CVT Autotronic was produced from 2004 to 2012 and was installed only on A-Class and B-Class models with engines up to 2.0 liters and 300 Nm of torque. The owners did not like the continuously variable transmission and it gave way to the preselective.