Mercedes-Benz 9G-Tronic transmission

9G-Tronic is Mercedes-Benz's trademark name for its 9-speed automatic transmission for longitudinal engines. The transmission is suitable for rear-wheel drive, all-wheel drive, hybrid, and plug-in hybrid drives and has been gradually introduced in most model series, starting off with the W9A 700 converter-9-gear-automatic with 700 N⋅m (516 lb⋅ft) maximum input torque (German: Wandler-9-Gang-Automatik bis 700 N⋅m Eingangsdrehmoment • type 725.0) as core model. The transmission was used in the E 350 BlueTEC in 2013 for the first time, and successively replaced both the 7-speed 7G-Tronic (PLUS) transmission and the 5-speed 5G-Tronic transmission. It includes versions for a maximum input torque of 1,000 N⋅m (738 lb⋅ft).

After the 5G- and 7G-Tronic, this is the 3rd generation of modern automatic transmissions, internally identified as NAG 3 (New Automatic Gearbox Generation 3).

The Jatco 9AT transmission is based on the same globally patented gearset concept.