The Mercedes-Benz 5G-TRONIC (also called 722.6) is an electronically shifted 5-speed overdrive automatic transmission. It is in the process of being replaced by the Mercedes Benz 7G-Tronic Transmission which was introduced in 2003. However, all V12-powered cars such as the S600 and S65 AMG still retain the 5G-Tronic, which has a torque capacity of 796 lb-ft, as the newer 7G-Tronic is limited to 542 lb-ft, not enough to handle the torque from the V12 engine.[1] Also, while rear-wheel drive W211 E-Class cars have adapted the 7G-Tronic, those with 4MATIC retain the five-speed automatic, although the current generation W212 E-Class released for the 2010 model year has dropped the 5G-Tronic entirely, except for four-cylinder models.
In Chrysler applications this transmission is identified as the New Automatic Gearbox- Generation One, or NAG1.


The Chrysler NSG370 is a six-speed overdrive manual transmission sourced from Mercedes. It is Jeep's first six-speed manual transmission and Chrysler's second after the Dodge Viper T-56.
The NSG370 does not use standard gear oil for lubrication. This transmission utilizes bronze synchronizer collars resulting in sensitivity to lubricant make-up. Only a fluid characterized by Chrysler specification MS-9224 should be used in order to avoid premature wear or failure of internal parts as well as voiding the factory warranty. [1] Pennzoil Synchromesh is one such petroleum based lubricant.[2]
Common synthetic alternatives to the factory Mopar-branded conventional lubricant are Royal Purple's Synchromax and Red Line Oil's MTL. The synthetic alternatives often improve shifting performance while decreasing internal wear and noise.
It features a 14mm hex fill plug on the passenger side and a 17mm hex drain plug on the bottom (with a strong magnet for attracting metal flakes).
Gear ratios:
1 2 3 4 5 6 R
4.46 2.61 1.72 1.25 1.00 0.84 4.06

Applications:

• 2005-2008 Jeep Liberty
• 2005-present Jeep Wrangler
• 2004-2006 Chrysler Crossfire
• 2006-2008 Dodge Nitro