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Mercedes-Benz 5G-Tronic transmission

  (Redirected from 5G-Tronic)

The Mercedes-Benz 5G-Tronic (also called 722.6) is an electronically shifted 5-speed overdrive automatic transmission with torque converter lockup (typically in gears 3, 4 and 5) and 2-speed for reverse. It replaced the older 722.3 / 722.4 4-speed 4G-Tronic transmission and its 722.5 5-speed derivative.

5G-Tronic
Overview
ManufacturerDaimler AG
Chrysler Group LLC
Production1990–Present
Body and chassis
Class5-speed longitudinal automatic transmission
Chronology
PredecessorMercedes-Benz 4G-Tronic transmission
SuccessorMercedes-Benz 7G-Tronic transmission

It was replaced by the Mercedes Benz 7G-Tronic 722.9 transmission introduced in 2003. This turned out to be a very lengthy process stretching out over nearly a decade. 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 many years. It is still being built for niche applications (e.g. Sprinter with gasoline/CNG M111 engine, Jeep Wrangler, etc.).

In Chrysler applications this transmission is identified as the New Automatic Gearbox Generation One, or NAG1.

SpecificationsEdit

Gear ratiosEdit

Gear Teeth and Ratios Planetary Gearset: Teeth Count Total Avg.
Model

Type

Version

First Delivery

Sun 1

Ring 1

Sun 2

Ring 2

Sun 3

Ring 3

Brakes

Clutches

Ratio

Span

Gear

Step

Gear 1 2 3 4 5 R 1 R 2
W5A 330

722.6

330 Nm · 243 lb·ft

1996[1][2]

50

79

34

70

54

87

3

3

4.7345 1.4751
Ratio 3.9319 2.4079 1.4857 1.0000 0.8305 - 3.1002 - 1.8986
W5A 580

722.6

580 Nm · 428 lb·ft

1996[1][2]

50

78

30

74

50

90

3

3

4.3152 1.4413
Ratio 3.5876 2.1862 1.4054 1.0000 0.8314 - 3.1605 - 1.9259
W5A 330

722.6

330 Nm · 243 lb·ft

Chrysler · 2004

58

92

34

70

65

103

3

3

4.7425 1.4757
Ratio 3.9510 2.4233 1.4857 1.0000 0.8331 - 3.1473 - 1.9303
W5A 580

722.6

580 Nm · 428 lb·ft

Chrysler · 2004

58

90

30

74

60

108

3

3

4.3266 1.4422
Ratio 3.5951 2.1862 1.4054 1.0000 0.8309 - 3.1671 - 1.9259

Special operating modesEdit

Winter ModeEdit

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.

Speedshift (2001-)Edit

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-)Edit

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 REdit

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

ApplicationsEdit

Mercedes modelsEdit

Mercedes S-ClassEdit

Mercedes CLEdit

Mercedes E-ClassEdit

(all models except 2004-2005 E500)

Mercedes C-ClassEdit

Mercedes CLKEdit

Mercedes MLEdit

Mercedes G-wagonEdit

Mercedes SLKEdit

Mercedes SLEdit

(6-cyl models only)

Mercedes SLREdit

Non Mercedes-Benz modelsEdit

MaybachEdit

JeepEdit

DodgeEdit

ChryslerEdit

JaguarEdit

SsangyongEdit

PorscheEdit

FreightlinerEdit

  • 2001-2006 Freightliner Sprinter Vans (USA)

See alsoEdit

ReferencesEdit

External linksEdit