MERCEDES, JAGUAR, DAIMLER/CHRYSLER "722.6" "5 Speed" - Transmission Identification and Service Manual

Oct 28, 2026

Technical service and identification manual for the Mercedes 722.6 5-speed automatic transmission used with gasoline and diesel engines. Provides an overview of electronic transmission controller functions and driver program modes (S standard and W winter), plus detailed section-by-section guidance covering transmission identification, internal component locations, solenoid application and operation, fluid requirements and oil level control, wiring schematics, diagnostic trouble code descriptions, torque converter operation, and full disassembly/rebuild procedures with torque specifications.

LanguageEnglish

CategoryResearch & Report

FormatPDF

Pages120

Reading Time5 h 2 min

AccessFree to download

Introduction

Transmission Identification

General Description

Internal Component Identification and Locations

Solenoid Application Chart

Fluid Requirements and Checking Procedure

Oil Level Control

Solenoid Locations and Identification

Solenoid Operation

Electrical and Control Components

Electrical Conductor Plate

Case Connector Terminal Identification

Park/Neutral Contact and Fluid Temp Sensor

N2 and N3 Input Speed Sensors

Transmission Control Module and Locations

TCM Connectors and Terminal Identification

Solenoid Resistance Chart

Shift and Range Systems

Shift Lever Assembly

Transmission Range Recognition Switch

Wiring and Diagnostics

Wiring Schematics

Diagnostic Trouble Code Description

Hydraulic and Mechanical Operation

Torque Converter Operation

Checkball and Small Parts Locations

Hydraulic Passage Identification

F-1 and F-2 Freewheel Directions

Disassembly and Rebuild

Transmission Disassembly

Transmission Case Assembly

Converter Housing, Oil Pump and B-1 Clutch Assembly

K-1 Clutch Housing Assembly (Includes F-1 Sprag)

K-2 Clutch Housing Assembly

Geartrain Identification and Possible Tooth Counts

Center and Rear Planetary Geartrain Assembly (Includes F-2)

K-3 Clutch Housing Assembly

B-2 Clutch Housing Assembly

Valve Body Assembly

Transmission Final Assembly

Torque Specifications

INDEX ATSG 2009 Copyright © MERCEDES , JAGUAR , DAIMLER / CHRYSLER " 7 2 2 . 6 " " 5 Speed " TRANSMISSION IDENTIFICATION ......................................................................................... 3 GENERAL DESCRIPTION .......................................................................................................... 7 INTERNAL COMPONENT IDENTIFICATIONAND LOCATIONS ....................................... 8 SOLENOID APPLICATION CHART .......................................................................................... 9 FLUID REQUIREMENTS AND CHECKING PROCEDURE ................................................... 10 OIL LEVEL CONTROL ................................................................................................................ 11 SOLENOID LOCATIONSAND IDENTIFICATION ................................................................. 12 SOLENOID OPERATION ............................................................................................................ 13 ELECTRICAL CONDUCTOR PLATE ........................................................................................ 16 CASE CONNECTOR TERMINAL IDENTIFICATION ............................................................. 17 PARK/NEUTRAL CONTACTAND FLUID TEMP SENSOR .................................................... 18 N2 AND N3 INPUT SPEED SENSORS ....................................................................................... 19 TRANSMISSION CONTROL MODULE AND LOCATIONS .................................................... 20 TCM CONNECTORS AND TERMINAL IDENTIFICATION ................................................... 22 SOLENOID RESISTANCE CHART ............................................................................................ 23 SHIFT LEVER ASSEMBLY ......................................................................................................... 24 TRANSMISSION RANGE RECOGNITION SWITCH ............................................................... 26 WIRING SCHEMATICS ............................................................................................................... 27 DIAGNOSTIC TROUBLE CODE DESCRIPTION .................................................................... 29 TORQUE CONVERTER OPERATION ....................................................................................... 34 CHECKBALLAND SMALL PARTS LOCATIONS .................................................................... 35 HYDRAULIC PASSAGE IDENTIFICATION ............................................................................. 36 F-1 AND F-2 FREEWHEEL DIRECTIONS ............................................................................... 38 TRANSMISSION DISASSEMBLY .............................................................................................. 39 COMPONENT REBUILD TRANSMISSION CASE ASSEMBLY .................................................................................. 48 CONVERTER HOUSING, OIL PUMPAND B-1 CLUTCHASSEMBLY......................... 49 K-1 CLUTCH HOUSING ASSEMBLY (INCLUDES F-1 SPRAG) .................................... 60 K-2 CLUTCH HOUSING ASSEMBLY ................................................................................ 68 GEARTRAIN IDENTIFICATIONAND POSSIBLE TOOTH COUNTS ........................... 79 CENTER AND REAR PLANETARY GEARTRAINASSEMBLY (INCLUDES F-2) ....... 81 K-3 CLUTCH HOUSING ASSEMBLY ................................................................................ 86 B-2 CLUTCH HOUSING ASSEMBLY ................................................................................ 96 VALVE BODYASSEMBLY .................................................................................................. 102 TRANSMISSION FINALASSEMBLY ........................................................................................ 109 TORQUE SPECIFICATIONS ......................................

FAQs

What is the Mercedes 722.6 transmission described in the document?

The document describes the Mercedes 722.6 electronically controlled 5-speed automatic transmission, featuring compound planetary gear sets, multiple-disc clutches and brake clutches, and a converter clutch with overdrive as 5th gear.

How do the driving programs S and W work?

The driver can select S for standard driving programs or W for winter driving programs. The W option provides a second-gear start and a higher gear ratio for reverse movement, while the standard mode provides first-gear takeoff and a lower reverse gear ratio.

What topics are included for service and diagnosis?

Coverage includes transmission identification and component locations, solenoid charts and operation, fluid requirements and oil level control, wiring schematics, diagnostic trouble code descriptions, torque converter operation, and detailed disassembly and rebuild assemblies with torque specifications.

Oct 28, 2026

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