Mercedes-Benz 722.9 Solenoid Shift Valve Assembly

Description:

The Mercedes-Benz 722.9 7PCS Solenoid Set (8-piece variant commonly listed) is used in the 7G-Tronic automatic transmission system to control hydraulic pressure, gear shifting, and torque converter engagement. It is a set of electro-hydraulic shift solenoids responsible for regulating clutch packs and valve body functions within the transmission. Commonly installed in Mercedes-Benz passenger vehicles including E-Class, S-Class, C-Class, ML, and CLS models equipped with the 722.9 7-speed automatic transmission. Transmission rebuilders, automotive repair shops, and drivetrain specialists use this set for replacement of worn solenoids, transmission repair, and restoration of shifting performance.

Applications:

The Mercedes-Benz 722.9 solenoid set is used in automatic transmission valve bodies to control hydraulic flow for gear selection, shift timing, and pressure modulation. It is commonly applied in 7G-Tronic equipped Mercedes-Benz vehicles such as W204, W211, W212, W221, W164, and related platforms where transmission shifting issues, limp mode faults, or solenoid failure occur.

Technical Specifications:

• Manufacturer: Mercedes-Benz / OEM aftermarket suppliers
• Model / Part number: 722.9 transmission solenoid set (8 pcs typical kit)
• Product type: Automatic transmission shift solenoid pack
• Transmission compatibility: 7G-Tronic 722.9 automatic transmission
• System function: Hydraulic pressure control for gear shifting and clutch engagement
• Quantity: 8 solenoids (commonly including EDS and shift pressure control units)
• Operating medium: Transmission fluid (ATF)
• Electrical control: Transmission control module (TCM) pulse-width modulation
• Material: Aluminum body with internal electromagnetic coils
• Mounting: Valve body integrated installation
• Application environment: Automotive drivetrain systems

Common Replacements:

• OEM Mercedes-Benz 722.9 valve body solenoid kit (factory rebuild set)
• Mechatronic valve body assembly for 7G-Tronic transmission
• ZF 6HP transmission solenoid kit (functionally comparable automatic transmission system)