List of Daimler AG transmissions explained

Daimler AG produces a number of automobile transmissions.

Differences in gear ratios have a measurable, direct impact on vehicle dynamics, performance, waste emissions as well as fuel mileage.

Mercedes-Benz Manual Transmissions

For manual transmissions G for gearbox and two digits are used. See G56 - 6-speed manual as an example.

Mercedes-Benz Automatic Transmissions

Mercedes-Benz uses the number "720" to currently "725" to identify an automatic transmission.

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Model	Type	Max. Input Torque	Pro- duction Period	Engine Orien- tation	Speed			Layout				Cou- pling	Control	Mount
Count					Span	Top	Power Flow	Gear- sets	Brakes	Clutch- es
N/A	K4A 025^[1] ^[2]	N/A	25kgm	1961  - 1967	Longitudinal	4		D	S	2	3	3	Fluid Coupling	Hydraulic	4-Bolt
N/A	K4B 050	N/A	51kgm	1964  - 1981	Longitudinal	4		D	S	3	3	2	Fluid Coupling	Hydraulic	4-Bolt
N/A	K4C 025^[3]	722.2	25kgm	1967  - 1972	Longitudinal	4		D	S	3	3	2	Fluid Coupling	Hydraulic	4-Bolt
N/A	K4A 040	722.2	40kgm	1969  - 1971	Longitudinal	4		D	S	3	3	2	Fluid Coupling	Hydraulic	4-Bolt
N/A	W3A 040^[4]	722.0	40kgm	1971  - 1972	Longitudinal	3		D	S	2	3	2	Torque Converter	Hydraulic	4-Bolt
N/A	W3A 050	722.0	50kgm	1973  - 1980	Longitudinal	3		D	S	2	3	2	Torque Converter	Hydraulic	4-Bolt
N/A	W3A 050 reinf.	722.0	56kgm	1975  - 1981	Longitudinal	3		D	S	2	3	2	Torque Converter	Hydraulic	4-Bolt
N/A	W4B 025	722.1	25kgm	1972  - 1983	Longitudinal	4		D	S	3	3	2	Torque Converter	Hydraulic	4-Bolt
N/A	W4A 018	720.1	18kgm	1975  - 1990	Longitudinal	4		D	S	3	3	2	Torque Converter	Hydraulic
N/A	W4B 035		35kgm	1975  -	Longitudinal	4		D	S	3	3	2	Torque Converter	Hydraulic
4G-Tronic	W4A 040^[5]	722.3	40kgm	1979  - 1985	Longitudinal	4		D	S	3	3	2	Torque Converter	Hydraulic	6-Bolt
4G-Tronic	W4A 020	722.4	20kgm	1982  - 1996	Longitudinal	4		D	S	3	3	2	Torque Converter	Hydraulic	6-Bolt
4G-Tronic	W4A 040 II	722.3	40kgm	1985  - 1996	Longitudinal	4		D	S	3	3	2	Torque Converter	Hydraulic	6-Bolt
4G-Tronic	W4A 028^[6]	722.3	28kgm	1990  - 1996	Longitudinal	4		D	S	3	3	2	Torque Converter	Hydraulic	6-Bolt
4G-Tronic	W5A 030	722.5	30kgm	1990  - 1996	Longitudinal	5		O	S	4	4	3	Torque Converter	H + E	6-Bolt
5G-Tronic	W5A 280	722.6 NAG1	280Nm		Longitudinal	5		O	P & S	3	3	3	Torque Converter w/ Lockup	Electronic
5G-Tronic	W5A 300	722.6 NAG1	300Nm		Longitudinal	5		O	P & S	3	3	3	Torque Converter w/ Lockup	Electronic
5G-Tronic	W5A 330	722.6 NAG1	330Nm	1996  - 2016	Longitudinal	5		O	P & S	3	3	3	Torque Converter w/ Lockup	Electronic
5G-Tronic	W5A 400	722.6 NAG1	400Nm		Longitudinal	5		O	P & S	3	3	3	Torque Converter w/ Lockup	Electronic
5G- Tronic	W5A 580	722.6 NAG1	580Nm	1996  - 2014	Longitudinal	5		O	P & S	3	3	3	Torque Converter w/ Lockup	Electronic
5G- Tronic	W5A 900	722.6 NAG1	900Nm	1996  - 2014	Longitudinal	5		O	P & S	3	3	3	Torque Converter w/ Lockup	Electronic
5G-Tronic	W5A 330	722.6 NAG1	330Nm	2004  - 2018	Longitudinal	5		O	P & S	3	3	3	Torque Converter w/ Lockup	Electronic
5G- Tronic	W5A 580	722.6 NAG1	580Nm	2004  - 2018	Longitudinal	5		O	P & S	3	3	3	Torque Converter w/ Lockup	Electronic
5G- Tronic	W5A 180	722.7	180Nm	1997  - 2020	Transverse	5		O	S	5	0	6	Torque Converter w/ Lockup	Electronic
Auto- tronic		722.8	N/A	2004  - 2011	Transverse	CVT	6.420	O	S	1			Torque Converter w/ Lockup	Electronic
7G- Tronic ^[7] ^[8] ^[9]	W7A 700	722.9 NAG2	700Nm	2003  - 2020	Longitudinal	7		O	P & S	4	4	3	Torque Converter w/ Lockup	Electronic
9G- Tronic ^[10]	W9A 700	725.0 NAG3	700Nm	2013  - 2016	Longitudinal	9		O	P & S	4	3	3	Torque Converter w/ Lockup	Electronic
9G- Tronic	W9A 700	725.0 NAG3	700Nm	2016  - Present	Longitudinal	9		O	P & S	4	3	3	Torque Converter w/ Lockup	Electronic

Notes and References

1. Johannes Looman · Zahnradgetriebe · pp. 133 ff · Berlin and Heidelberg 1970 · Print
2. Ergebnis und Ausblick · Festschrift für Herrn Prof. Dr. Hans Joachim Förster zum Ausscheiden als Direktor aus dem aktiven Dienst der Daimler-Benz AG November 1982 (Result And Outlook · commemorative publication for Prof. Dr. Hans Joachim Foerster on the occasion of leaving as director from active duty at Daimler-Benz AG November 1982) · pp. 6 · 20
3. loc. cit. · pp. 7 · 20
4. Hans Joachim Foerster · Automatische Fahrzeuggetriebe · p. 452 · Berlin and Heidelberg 1991 · Print · Online
5. loc. cit. · pp. 171 · 192
6. https://up.picr.de/32855333vn.pdf
7. Web site: Catalog . shop.ukrtrans.biz . 2020-01-15.
8. Web site: Mercedes Benz 722.9 Training Manual.
9. Web site: Mercedes-Benz Automatic Transmission 722.9 Technical Training Materials - PDF Free Online . 2019-06-28 . https://web.archive.org/web/20190628162658/https://procarmanuals.com/mercedes-benz-automatic-transmission-722-9-technical-training-materials/ . 2019-06-28 . dead .
10. Web site: System description . documents.epfl.ch . 2020-01-16.