Mercedes 320 Transmission for Sale | Used 722.6 5G-Tronic 5-Speed

Description

About the Mercedes 320 Transmission

Need a replacement Mercedes 320 transmission (722.6 5G-Tronic 5-speed automatic)? Part Nests sources OEM used 722.6 transmissions for Mercedes 320 applications across various Mercedes model designations. The Mercedes 722.6 5G-Tronic is one of the most widely deployed Mercedes automatic transmissions of the late 1990s / early 2000s era – used across E-Class, S-Class, ML-Class, CLK, and various other Mercedes models. Configuration matters: Mercedes 320 designation applies across multiple model classes with different chassis codes (E320, S320, ML320, CLK320, etc.) – verify Mercedes model, year, engine, and drivetrain before ordering. Each transmission is inspected for torque converter function, valve body operation, and output shaft splines. Call (855) 634-4447 to verify Mercedes model, year, engine, and drivetrain before ordering.

Mercedes 320 Designation Context

• Mercedes 320 naming convention: The Mercedes 320 designation historically indicated 3.2 liter engine displacement. Used across multiple Mercedes model classes including E320 (E-Class), S320 (S-Class), ML320 (ML-Class SUV), CLK320 (CLK coupe / cabriolet), C320 (C-Class), and various other 320-designated Mercedes variants during the late 1990s and 2000s era
• Different chassis, different platforms: The various Mercedes 320 variants use different chassis codes and platforms – E320 uses W210 (1996-2002) or W211 (2003-2009), ML320 uses W163 (1998-2005), CLK320 uses W208 (1998-2002) or W209 (2003-2009), etc. Verify chassis code before ordering as transmission mounting, torque converter, and gearing may vary between applications
• Engine associations: Mercedes 320 designation historically associated with the M112 3.2L V6 engine (most common 320 engine during the 722.6 era). Some earlier 320 applications used the M104 3.2L inline-6 (E320 W124 late production and early W210) with different transmission integration. Verify engine before ordering

Mercedes-Benz 722.6 5G-Tronic Transmission

• Celebrated Mercedes 5-speed automatic: The Mercedes-Benz 722.6 5G-Tronic is one of the most celebrated and widely deployed Mercedes automatic transmissions. Represented Mercedes’ modern automatic transmission approach during the late 1990s / early 2000s era. Electronically controlled with adaptive shift logic providing shift quality appropriate for premium sedan and SUV applications
• Broad Mercedes application: The 722.6 was used across many Mercedes models spanning multiple engine families including M112 V6 (3.2L 320 designation, and 3.2L 500 designation), M113 V8 (various 500 designations, and AMG-tuned variants), M104 inline-6 (earlier 320 applications), OM606 diesel (E320 CDI applications), and various other Mercedes engines during the production era
• Electronic control architecture: Electronic control unit manages shift timing, torque converter lock-up, and adaptive shift learning based on driver behavior. Provides refined shift quality with continuous adaptation to driving conditions. Modern automatic transmission architecture for the era
• Torque converter lock-up: Torque converter includes lock-up clutch that provides direct mechanical connection between engine and transmission in appropriate operating conditions (typically higher gears at cruise). Improves fuel efficiency by eliminating torque converter fluid slip losses at cruise conditions
• Successor – 722.9 7G-Tronic: The 722.6 was later succeeded by the Mercedes 722.9 7G-Tronic seven-speed automatic transmission (2003+) providing additional gear ratios for improved efficiency and refined shift quality. Modern Mercedes vehicles have continued to updated automatic transmissions including 9G-Tronic nine-speed variants

722.6 Configuration Variations

• Torque capacity variations: The 722.6 was available in different torque capacity variants for different engine applications. Higher-torque variants used with V8 engines have reinforced internal components vs the base variants used with V6 engines. Verify specific 722.6 variant for your engine before ordering
• RWD vs 4MATIC AWD variants: Different case configurations for rear-wheel drive vs 4MATIC all-wheel drive Mercedes vehicles. 4MATIC variants include additional transfer case integration for the AWD system. Verify drivetrain configuration before ordering
• Model-specific gearing: Different final drive gearing and internal ratios for different vehicle applications (sedan vs SUV vs coupe applications may use different gearing profiles). Verify specific Mercedes model application when ordering

Transmission Specifications

• Type: OEM used Mercedes-Benz 722.6 5G-Tronic five-speed automatic transmission with torque converter
• Function: Automatic transmission providing gear ratio changes between engine and drivetrain. Torque converter provides hydraulic coupling between engine and transmission with lock-up clutch for direct mechanical connection at appropriate operating conditions. Electronic control provides adaptive shift logic
• Common failure modes: Valve body wear (harsh or delayed shifts, gear engagement issues), torque converter clutch failure (converter lock-up shudder or failure), electrical connector or wiring failures at the transmission electrical connector (7-pin connector – well-known Mercedes 722.6 failure point), internal seal failure (external fluid leaks), planetary gear wear (audible gear noise). Symptoms include check engine light with transmission codes, harsh shifting, delayed shift engagement, and audible transmission noise
• 7-pin electrical connector: The 722.6 uses a distinctive 7-pin electrical connector that passes through the transmission case for internal control connection. Connector seal failure is a well-known Mercedes 722.6 failure point – transmission fluid can leak through the connector wiring into the vehicle harness. Verify connector condition when receiving the transmission
• Testing: Torque converter function tested, valve body operation verified, output shaft splines inspected before shipment

Why Buy From Part Nests

• OEM verified 722.6 5G-Tronic transmission for Mercedes 320 applications
• Torque converter function tested, valve body operation verified, output shaft splines inspected
• Support for the celebrated 722.6 5G-Tronic across multiple Mercedes model applications
• Free shipping to all 50 states
• 15 day replacement warranty on component defects
• Support team familiar with Mercedes 320 designation across E320, S320, ML320, CLK320 variants and 722.6 configuration matching
• Call (855) 634-4447 to confirm your Mercedes model, year, engine, and drivetrain before ordering.

Call (855) 634-4447 for assistance. Call (855) 634-4447 for assistance. Call (855) 634-4447 for assistance.