Units

Introduction The Mercedes-Benz 724.1, marketed as the 8G-DCT and identified in factory documentation as the 8FDCT or 8F-DCT, is an eight-speed wet dual-clutch transmission designed for transverse-engine Mercedes-Benz vehicles. It combines two oil-cooled multidisc clutches, an eight-speed parallel-shaft gear train, and integrated electrohydraulic control. The transmission is used in selected A-Class, CLA, GLA, GLB, and…

Introduction The Mercedes-Benz 724.0, marketed as the 7G-DCT, is a seven-speed wet dual-clutch transmission designed for transverse-engine vehicle platforms. It combines two hydraulically operated multidisc clutches, synchronized constant-mesh gearing, integrated electrohydraulic controls, and an electronically controlled parking lock. Applications include selected Mercedes-Benz A-Class, B-Class, CLA-Class, GLA-Class, and Mercedes-AMG models. Unlike the conventional Mercedes-Benz 722.9 7G-TRONIC…

Introduction The Mercedes-Benz 725.1 is a nine-speed, electronically controlled automatic transmission belonging to the updated 9G-TRONIC family. Mercedes-Benz identifies this version as the 9G-TRONIC Facelift, also designated NAG3 MOPF. It is used in longitudinal powertrain applications, including selected Mercedes-Benz and Mercedes-AMG vehicles. The 725.1 must be distinguished from the earlier 725.0, commonly identified as NAG3…

Introduction The Mercedes-Benz 725.0, marketed as 9G-TRONIC, is a nine-speed electronically controlled planetary automatic transmission designed for longitudinal powertrain applications. Introduced in 2013, it belongs to the NAG3 transmission generation and combines a hydraulic torque converter, four planetary gearsets, six friction shift elements, and an integrated electrohydraulic control system. The original 725.011 version, designated W9A…

Introduction The Mercedes-Benz 722.9, marketed as 7G-Tronic and later 7G-Tronic Plus, is a longitudinal seven-speed planetary automatic transmission with electronically controlled hydraulic shifting. Its conventional configuration uses a hydrodynamic torque converter with a controlled lockup clutch, multiple planetary gearsets and an integrated electrohydraulic control system known as VGS (Fully Integrated Transmission Control). The 722.9 family…

Introduction The Mercedes-Benz 722.6 is a five-speed, electronically controlled planetary automatic transmission introduced to the US market in 1996. Commonly known as 5G-Tronic, it was used in Mercedes-Benz passenger cars, SUVs and commercial vehicles. Related versions were also fitted to Chrysler, Dodge, Jeep and other manufacturers’ vehicles under the NAG1 designation (New Automatic Gearbox, Generation…

Introduction The Mercedes-Benz 722.5 is a five-speed automatic transmission that combines a hydraulically controlled four-speed main transmission with an electronically controlled fifth-gear overdrive section. It was used in selected longitudinal, rear-wheel-drive Mercedes-Benz passenger cars, including the R129 SL-Class and W140 S-Class. The additional overdrive assembly distinguishes the 722.5 from the related four-speed 722.3 and 722.4…