Mercedes-Benz 5G-Tronic transmission

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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.

Contents

Specifications [edit]

Gear ratios [edit]

Mercedes-Benz Transmissions
Gear 1 2 3 4 5 R1 R2
5G-TRONIC (W5A330/Small NAG)[2] 3.932 2.408 1.486 1.00 0.83 -3.10 -1.90
5G-TRONIC (W5A580/Large NAG)[3] 3.59 2.19 1.41 1.00 0.83 -3.16 -1.93

Special operating modes [edit]

Speedshift (2001-) [edit]

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-) [edit]

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 [edit]

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

Applications [edit]

See also [edit]

References [edit]

  1. ^ [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

External links [edit]

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