Mercedes-Benz 7G-Tronic (722.9) transmission
Remanufactured
7G-Tronicย (coded 722.9) isย Mercedes-Benzโsย trademarkย name for its seven-speedย automatic transmission. This fifth-generation transmission was introduced in the Autumn of 2003 on 8-cylinder models, and was the first seven-speed automatic transmission ever used on a production passenger vehicle.
The 7G-Tronic initially debuted on five different eight-cylinder models: theย E500,ย S430,ย S500,ย CL500, andย SL500. It also soon became available on many six-cylinder models. Turbocharged V12 engines, four cylinder applications and commercial vehicles continued to use the older 5G-Tronic for many years.
The company claims that the 7G-Tronic can save up to 0.6 litres of fuel per 100 kilometers (depending on the car) and has shorter acceleration times and quicker intermediate sprints than the outgoing 5-speed automatic transmission.
The 7G-Tronic has two reverse gear ratios: 3.416 and 2.231. The winter mode, also recently named โcomfortโ mode, starts out in 2nd forward and 2nd reverse.
The transmission can skip gears when downshifting. It also has aย lockup torque converterย on all seven gears, allowing better transmission of torque for improved acceleration. The transmissionโs case is made ofย magnesium, a first for the industry, to save weight.[
The 7G-Tronic is the fifth-generation transmission for Mercedes-Benz. About 65 percent ofย Mercedes-Benz C-Classย sedans, wagons, and sport coupes are purchased with automatic transmissions (with that figure rising). However, about 88 percent ofย Mercedes-Benz E-Classย sedans and wagons are purchased with automatic transmissions, and automatic transmissions are standard on theย Mercedes-Benz S-Class.
The 7G-Tronic transmission is built at the Mercedes-Benzย Stuttgart-Untertuerkheimย plant inย Germany, the site ofย Daimler-Benzโs original production facility.
Price: $6495.00 Free Shipping to your local mechanic and core return shipping.ย
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