Mercedes-Benz 5G-Tronic transmission

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5G-Tronic
Overview
Manufacturer
Chrysler Group LLC
FCA-US
Also calledMercedes 722.6, Chrysler NAG1, Chrysler A580
Production1996-2020
Body and chassis
Class5-speed longitudinal automatic transmission
Chronology
PredecessorMercedes-Benz 4G-Tronic transmission
SuccessorMercedes-Benz 7G-Tronic transmission

5G-Tronic is Mercedes-Benz's trademark name for its five-speed automatic transmission, starting off with the W5A 580 and W5A 330 (Wandler-5-Gang-Automatik bis 580 oder 330 Nm Eingangsdrehmoment; converter-5-gear-automatic with 428 or 243 ft·lb maximum input torque; type 722.6) as core models.

Abstract

The 5G-Tronic (model W5A 330 and W5A 580 · type 722.6) is an electronically shifted 5-speed overdrive automatic transmission with torque converter lock-up (typically in gears 3, 4 and 5) and 2-speed for reverse. In all applications this transmission is identified as the New Automatic Gearbox Generation One, or NAG1.

It replaced the older 4-speed

7G-Tronic (model W7A 700 · type 722.9) transmission with 11 main components,[b]
introduced in 2003. Due to its high torque capacity (up to 1000 Nm) and lower cost, it was still retained for turbocharged V12 engines, four-cylinder applications and commercial vehicles for almost a decade. It is still being built for niche applications (e.g. Sprinter with petrol/CNG M111 engine, Jeep Wrangler, etc.).

Specifications

Basic concept

Technical and economic progress is reflected in 5 forward gears[c] out of 9 main components,[d] compared to 5 forward gears[e] out of 11 main components[f] in the direct predecessor. It is fully electronically controlled and equipped with a torque converter lock-up.

Gear ratios

Gear Teeth and Ratios[g] Planetary Gearset: Teeth[h] Count Total Avg.
Model
Type
Version
First Delivery
[i]
[j]
[k]
[l]
[m]
[n]
Brakes
Clutches
Ratio
Span
Gear
Step
Gear R 1 R 2 1 2 3 4 5
Step
–R1 : 1 –R2 : 2 1 : 2 2 : 3 3 : 4 4 : 5
W5A 330
722.6
330 N⋅m (243 lb⋅ft)
1996[1][2]
50
79
34
70
54
87
3
3
4.7345 1.4751
Ratio
−3.1002
−1.8986
3.9319
2.4079
1.4857
1.0000
0.8305
Step 0.7885 0.7885 1.6329 1.6207 1.4857 1.2042
W5A 580
722.6
580 N⋅m (428 lb⋅ft)
1996[1][2]
50
78
30
74
50
90
3
3
4.3152 1.4413
Ratio
−3.1605
−1.9259
3.5876
2.1862
1.4054
1.0000
0.8314
Step 0.8810 0.8810 1.6410 1.5556 1.4054 1.2028
W5A 900
722.6
900 N⋅m (664 lb⋅ft)
1996
50
78
30
74
50
90
3
3
4.3152 1.4413
Ratio −3.1605 −1.9259 3.5876 2.1862 1.4054 1.0000 0.8314
Step 0.8810 0.8810 1.6410 1.5556 1.4054 1.2028
W5A 330
722.6
330 N⋅m (243 lb⋅ft)
Chrysler · 2004
58
92
34
70
65
103
3
3
4.7425 1.4757
Ratio
−3.1473
−1.9303
3.9510
2.4233
1.4857
1.0000
0.8331
Step 0.7966 0.7966 1.6304 1.6311 1.4857 1.2003
W5A 580
722.6
580 N⋅m (428 lb⋅ft)
Chrysler · 2004
58
90
30
74
60
108
3
3
4.3266 1.4422
Ratio
−3.1671
−1.9259
3.5951
2.1862
1.4054
1.0000
0.8309
Step 0.8810 0.8810 1.6444 1.5556 1.4054 1.2035
Ratio
R & even
Ratio
R & odd
  1. ^ plus 2 reverse gears
  2. ^ 4 planetary gearsets (of which 2 gearsets are combined as a Ravigneaux compound gearset), 4 brakes, 3 clutches
  3. ^ plus 2 reverse gears
  4. ^ 3 simple planetary gearsets, 3 brakes, 3 clutches
  5. ^ plus 1 reverse gear
  6. ^ 4 planetary gearsets (of which 2 gearsets are combined as a Ravigneaux compound gearset), 4 brakes, 3 clutches
  7. ^ Differences in gear ratios have a measurable, direct impact on vehicle dynamics, performance, waste emissions as well as fuel mileage
  8. ^ Layout
    (1) Planetary gearset 1 is on the input (turbine) side
    (2) Output shaft is carrier 2 (planetary gear carrier of gearset 2)
  9. ^ Sun 1: sun gear of gearset 1
  10. ^ Ring 1: ring gear of gearset 1
  11. ^ Sun 2: sun gear of gearset 2
  12. ^ Ring 2: ring gear of gearset 2
  13. ^ Sun 3: sun gear of gearset 3
  14. ^ Ring 3: ring gear of gearset 3

Special operating modes

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 labelled "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 AMG[3] and 2001 Mercedes-Benz SLK 32 AMG.[4]

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.[5]

It was first used in 2002 Mercedes-Benz E 55 AMG, S 55 AMG, C55, CL 55 AMG.[6]

AMG Speedshift R

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

Applications

Mercedes models

Mercedes S-Class

  • 1996–1998 Mercedes-Benz W140
  • 1999–2005
    Mercedes-Benz W220
  • 2006–2013
    Mercedes-Benz W221
    (V12 models only)

Mercedes CL

  • 1996–1998
    Mercedes-Benz C140
  • 2000–2006
    Mercedes-Benz C215
  • 2007–2014
    Mercedes-Benz C216
    (V12 Models only)

Mercedes CLS

  • 2004–2006
    Mercedes-Benz C219

Mercedes E-Class

  • 1996–2002
    Mercedes-Benz W210
    (all models except some early 1996 cars)
  • 2002–2006
    Mercedes-Benz W211
    (all models except 2004-2006 RWD E 500)
  • 2007–2009
    Mercedes-Benz W211
    (4-cyl and 4-matic only)
  • 2009–2011
    Mercedes-Benz W212
    (4-cyl models only)

Mercedes C-Class

  • 1996–2000
    Mercedes-Benz W202
  • 2001–2005
    Mercedes-Benz W203
    (all models)
  • 2006–2007
    Mercedes-Benz W203
    (4-cyl and 4-matic models only)
  • 2007–2011
    Mercedes-Benz W204
    (4-cyl models only)

Mercedes CLK

  • 1998–2002
    Mercedes-Benz C208
  • 2003–2005
    Mercedes-Benz C209
    (all models except 2005 CLK 500)
  • 2006–2009
    Mercedes-Benz C209
    (4-cyl and CLK 55 AMG only)

Mercedes ML

  • 1998–2005
    Mercedes-Benz W163

Mercedes G-Class

  • 1996–2006
    Mercedes-Benz W463
    (all models)
  • 2007–2012
    Mercedes-Benz W463
    (G 55 AMG only)

Mercedes SLK

  • 1997–2003
    Mercedes-Benz R170
  • 2004–2010
    Mercedes-Benz R171
    (4-cyl models only)

Mercedes SL

  • 1996–2001
    Mercedes-Benz R129
  • 2001–2004
    Mercedes-Benz R230
    (all models)
  • 2005–2006
    Mercedes-Benz R230
    (all models except SL 500)
  • 2007–2011
    Mercedes-Benz R230
    (SL 55 AMG and V12 models only)

Mercedes SLR

Maybach

Non Mercedes-Benz models

Jeep

Dodge

Chrysler

Lancia

Jaguar

  • 1998–2003
    Jaguar X308
    (Supercharged models only)
  • 1998–2002 Jaguar XK (X100) (Supercharged models only)

SsangYong

Porsche

Freightliner

See also

References

External links