Mercedes-Benz W204 7G-Tronic Plus Automatic Transmission 722.997

Product Description

Genuine Mercedes-Benz 7G-Tronic Plus automatic transmission, transmission type 722.997, suitable for selected Mercedes-Benz W204 C-Class applications.

This 7-speed automatic transmission is identified as 722.997 and is part of the Mercedes-Benz 7G-Tronic Plus / 722.9 transmission family. The 722.997 variant is documented for Mercedes-Benz W204 applications and is also associated with W7C 700 transmission configurations.

The 7G-Tronic is a longitudinally mounted electronically controlled automatic transmission using a hydrodynamic torque converter with lock-up clutch. The transmission provides seven forward gears and is designed to deliver smooth shifting, efficient power transfer and reduced engine speed during highway cruising.

Product Identification

Specification	Details
Manufacturer	Mercedes-Benz
Transmission Family	7G-Tronic / 7G-Tronic Plus
Transmission Type	722.997
Transmission Series	722.9
Configuration	7-Speed Automatic
Application	Mercedes-Benz W204 C-Class
Transmission Variant	W7C 700
Identification / Date Marking	2-9-15
Forward Gears	7
Reverse	1
Transmission Layout	Longitudinal
Torque Converter	Hydrodynamic, lock-up type
Control	Electronic / electro-hydraulic
Maximum Torque Class	Up to approximately 700 Nm for the W7C 700 family*
ATF Specification	Application-dependent; 722.997 applications may use Mercedes-Benz ATF specification 236.15
Transmission Family Production	7G-Tronic: 2003–2020

*The 700 Nm figure refers to the W7C 700 transmission class and should not be interpreted as the guaranteed torque capacity of every individual 722.997 installation.

Gear Ratios

Typical 7G-Tronic ratios are:

Gear	Ratio
1st	4.377:1
2nd	2.859:1
3rd	1.921:1
4th	1.368:1
5th	1.000:1
6th	0.820:1
7th	0.728:1

Exact ratios and internal specifications can vary according to the specific 722.9 variant and vehicle application. Mercedes-Benz documentation identifies the 7G-Tronic as a seven-speed automatic transmission, while W204 application data confirms use of the 722.9 family.

Features

• 7G-Tronic Plus 7-speed automatic transmission
• Mercedes-Benz 722.997 transmission code
• Designed for selected W204 C-Class applications
• Electronic transmission management
• Electro-hydraulic control system
• Hydrodynamic torque converter with lock-up clutch
• Seven forward gears for smooth acceleration
• Wide ratio spread for improved cruising efficiency
• Longitudinal transmission configuration
• Suitable for professional replacement and repair applications

Compatible Applications

The 722.997 transmission is associated with various Mercedes-Benz models, including selected:

• C-Class W204
• C180
• C200
• C250
• Selected petrol applications
• Other Mercedes-Benz models using the same 722.997 transmission variant

Parts databases and transmission specialists list the 722.997 for multiple W204 applications, including C-Class models produced during the relevant period.

Important Compatibility Information

Please verify compatibility before purchasing.

Mercedes-Benz used numerous versions of the 722.9 transmission family. The transmission code 722.997, vehicle engine, drivetrain, production date, software/mechatronic configuration and Mercedes-Benz part number must be checked against the vehicle.

For the most accurate identification, compare:

• VIN
• Existing transmission number
• Mercedes-Benz OE part number
• Engine code
• Vehicle model and year
• Rear-wheel-drive / 4MATIC configuration
• Mechatronic / control-unit specification

Mercedes-Benz workshop documentation notes that the transmission identification number is located on the transmission housing and should be used for identification.

ATF Information

For applicable 722.997 configurations, transmission service information lists Mercedes-Benz ATF specification 236.15. One W204 722.997 service application specifies approximately 7 litres for a standard oil service, although the required quantity depends on the exact service procedure and transmission configuration.

Ideal For

• Mercedes-Benz W204 automatic transmission replacement
• Professional automotive workshops
• Transmission specialists
• Vehicle dismantlers and spare-parts suppliers
• Automatic gearbox repair and refurbishment
• OEM replacement applications

Product Summary

Brand: Mercedes-Benz
Transmission: 7G-Tronic Plus
Type: 722.997 / 722.9
Speeds: 7-Speed Automatic
Variant: W7C 700
Vehicle Application: Mercedes-Benz W204 C-Class
Identification: 2-9-15
Drive Configuration: Longitudinal
Torque Converter: Included as applicable to the supplied unit
Condition: Please specify — Used / Tested / Refurbished / Reconditioned

Professional Note: The transmission should be matched by the complete transmission identification and vehicle VIN before installation. Do not rely on “722.9” alone for interchangeability, as multiple variants exist within the 722.9 family.