Mercedes-Benz 5G-Tronic transmission

5G-Tronic
Overview
Manufacturer Daimler AG
Chrysler Group LLC
Production 1990–Present
Body and chassis
Class 5-speed longitudinal automatic transmission
Chronology
Predecessor 722.5 & 4G-Tronic
Successor 7G-Tronic


The Mercedes-Benz 5G-Tronic (also called 722.6) is an electronically shifted 5-speed overdrive automatic transmission with torque converter lockup that replaced the older 722.5 5-speed hydraulic transmission and most of the 4-speed 4G-Tronic transmissions. It was replaced by the Mercedes Benz 7G-Tronic 722.9 transmission which was introduced in 2003. However, all V12-powered cars such as the S600 and S65 AMG and the 5.4 liter v8 AMG kompressor models still retained 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 until 2014 with the new generation of V12 Mercedes cars adopting an iteration of the 7G-Tronic.[1] Also, while rear-wheel drive W211 E-Class cars have adapted the 7G-Tronic, those with 4Matic retained 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.

Specifications

Gear ratios

Mercedes-Benz Transmissions
Gear12345R1R2
5G-Tronic (W5A330/Small NAG)[2]3.9512.4231.4861.0000.833-3.147-1.93
5G-Tronic (W5A580/Large NAG)[3]3.5952.1861.4051.0000.831-3.167-1.926

Special operating modes

Speedshift (2001-)

A performance feature set for the Mercedes-Benz transmissions, which includes manual mode, active downshifting. When cornering at high speed, the transmission maintains the same gear above a certain lateral acceleration level. It can also automatically downshift before overtaking.

It was first used in 2001 Mercedes-Benz C 32 AMG.,[4] 2001 Mercedes-Benz SLK 32 AMG.[5]

AMG Speedshift (2002-)

A version with mechanical lock-up of the torque converter from first gear, steering-wheel-mounted shifter. AMG Speedshift is also used in 7G-Tronic transmission.[6]

It was first used in 2002 Mercedes-Benz E 55 AMG, S 55 AMG, C55, CL 55 AMG.[7]

AMG Speedshift R

A version used in Mercedes-Benz SLR McLaren. It includes 3 manual modes.

Applications

References

  1. ↑
  2. ↑ <http://www.scribd.com/embeds/92643386/content?start_page=1&view_mode=list&access_key=key-7h437wiv215r2tv8d93>
  3. ↑ <http://www.scribd.com/embeds/92643386/content?start_page=1&view_mode=list&access_key=key-7h437wiv215r2tv8d93>
  4. ↑ C 32 AMG: High-performance saloon with a high-torque, six-cylinder supercharged engine
  5. ↑ SLK 32 AMG: 354 hp V6 - the new leader among the compact roadsters
  6. ↑ The new Mercedes-Benz SLK-Class: Celebrating its world premiere at the Geneva Motor Show
  7. ↑ Mercedes-AMG GmbH launches V8 Kompressor initiative: up to 368 kW/500 hp for the E-Class, S-Class and CL-Class
  8. ↑ de:Jeep Grand Cherokee
  9. ↑ de:Jeep Wrangler
  10. ↑ Chrysler Crossfire
  11. ↑ de:Chrysler 300 (2004)

External links

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