Mercedes-Benz 5G-Tronic transmission

5G-Tronic is the unofficial name given by car enthusiasts to Mercedes-Benz's 5-speed automatic transmission type 722.6 for longitudinal engines. It was produced from 1996 to 2020 in different variants as converter-5-gear-automatic transmission (). The core models W5A 330 and W5A 580 are for engines up to or maximum input torque. The W5A 280 and W5A 300 were built for vans and SUVs, the W5A 400 for off-road applications (RWD and 4X4), and the W5A 900 (up to ) for V12-applications.

Key data

+ Gear ratios Model TypeSeries FirstDeliv-ery Gear Total Span Avg.Step Components Nomenclature R 2 R 1 1 2 3 4 5 Nomi-nal Effec-tive Cen-ter Total perGear Cou-pling GearsCount Ver-sion Maximum Input Torque W5A 280W5A 300W5A 330 722.6NAG 1 1996 3 Gearsets3Brakes3Clutches W 5 A W5A 400W5A 580W5A 900 W5A 330 2004 W5A 580

History

This fourth-generation transmission by Mercedes-Benz replaced the older 4-speed 4G-Tronic transmission-family and its 5-speed derivative, and was replaced by the much more complex and costly 7-speed Mercedes-Benz 7G-Tronic transmission (model W7A 700 · type 722.9) introduced in 2003. Due to its high torque capacity and lower cost, it was retained for turbocharged V8 and V12 engines, 4-cylinder applications and commercial vehicles for almost a decade. Production ended in 2020 with niche applications like Sprinter with petrol/CNG M111 engine and Jeep Wrangler.

Specifications

Winter/summer (standard) mode

Activated by a toggle switch, Winter mode sets the gearbox to start off in 2nd gear, both in Drive and Reverse. This is designed to reduce wheelspin on icy surfaces. Also in "W" mode the transmission will shift at lower speeds. "S" mode is not sport but Sommer (German for summer) or Standard.

With Jaguar XJR applications the switch is labeled "Sport." In regular driving mode the gearbox starts off in 2nd gear, both in Drive and Reverse, and will only engage 1st gear when triggered via the kickdown switch (Drive only). While "Sport" mode is enabled the gearbox will always start off in 1st gear.

Speedshift (2001–)

Speedshift is a performance feature set for the Mercedes-Benz transmissions which includes manual mode and 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 AMGC 32 AMG: High-performance saloon with a high-torque, 6-cylinder supercharged engine and 2001 Mercedes-Benz SLK 32 AMG.SLK 32 AMG: 354 hp V6 - the new leader among the compact roadsters

AMG Speedshift (2002–)

A version with mechanical lock-up of the torque converter from first gear and steering-wheel-mounted shifter. AMG Speedshift is also used in 7G-Tronic transmission.The new Mercedes-Benz SLK-Class: Celebrating its world premiere at the Geneva Motor Show

It was first used in 2002 Mercedes-Benz E 55 AMG, S 55 AMG, C55, CL 55 AMG.Mercedes-AMG GmbH launches V8 Kompressor initiative: up to 368 kW/500 hp for the E-Class, S-Class and CL-Class

AMG Speedshift R

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

Planetary gearset concept

Improved fuel economy

The 5G-Tronic is an electronically shifted 5-speed overdrive automatic transmission with torque converter lock-up, typically in gears 3, 4 and 5.

The main objective in replacing the predecessor model was to improve vehicle fuel economy with extra speeds and a wider gear span to allow the engine speed level to be lowered (downspeeding), which is a decisive factor in improving energy efficiency and thus reducing fuel consumption. In addition, the lower engine speed level improves the noise-vibration-harshness comfort and the exterior noise is reduced.

Applications

+ Variants and applications ModelMake Car Model Mercedes models C-Class 1996–2000 W 202 2001–2005 W 203 (all models) 2006–2007 W 203 (4-cyl and 4-matic models only) 2007–2011 W 204 (4-cyl models only) CLK-Class 1998–2002 C 208 2003–2005 C 209 (all models except 2005 CLK 500) 2006–2009 C 209 (4-cyl and CLK 55 AMG only) E-Class 1996–2002 W 210 (all models except some early 1996 cars) 2002–2006 W 211 (all models except 2004-2006 RWD E 500) 2007–2009 W 211 (4-cyl and 4-matic only) 2009–2011 W 212 (4-cyl models only) S-Class 1996–1998 W 140 1999–2005 W 220 2006–2013 W 221 (V12 models only) CL-Class 1996–1998 C 140 2000–2006 C 215 2007–2014 C 216 (V12 Models only) CLS-Class 2004–2006 C 219 ML-Class 1998–2005 W 163 G-Class 1996–2006 W 463 (all models) 2007–2012 W 463 (G 55 AMG only) SLK-Class 1997–2003 R 170 2004–2010 R 171 (4-cyl models only) SL-Class 1996–2001 R 129 2001–2004 R 230 (all models) 2005–2006 R 230 (all models except SL 500) 2007–2011 R 230 (SL 55 AMG and V12 models only) SLR 2005–2009 W 199 Maybach 2002–2013 57 and 62 Other models Jeep 2002–2013 Grand Cherokee:de:Jeep Grand Cherokee (02-04 WG Diesel W5J400, 05-10 Gran Cherokee (WK) V6, WK 6.1 SRT V8, WH V6 3.0 Diesel export only Steyr W5A580) 2006–2010 Commander (XK) XK (3.7 gas) XH (3.0 diesel - export) 2012–2018 Wrangler (JK):de:Jeep Wrangler Liberty (KK) (W5A580) Dodge 2005–2008 Magnum (AWD, RT, SRT8 only) 2006–2014 Charger (2006-14 R/T, SRT8; 5.7, 6.1L, & 6.4) (2006-2007 3.5L V6 HO) 2006–2020 Charger Pursuit 2007–2011 Nitro (4.0L and 2,8 diesel) 2009–2014 Challenge 2011–2012 Durango (V6 Models only) 2003–2006 Dodge Sprinter Vans (North America) Chrysler 2004–2008 Crossfire, all modelsChrysler Crossfire 2005–2014 300 Lancia 2011–2014 Thema Jaguar 1998–2003 308 (Supercharged models only) 1998–2002 XK (X 100) (Supercharged models only) SsangYong 1997–2014 Chairman H 2001–2017 Rexton 2004–2019 Rudius 2005–2014 Kyron 2014–2018 Actyon Porsche 2001–2010 996.2 and 997.1 Carrera and Turbo Freightliner 2001–2007 Freightliner Sprinter Vans (USA)

Mercedes-Benz 5G-Tronic transmission

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