Description

The A0335457332 Conductor Plate / TCU is a VGS2 (2nd Generation NAG2) transmission control module designed for Mercedes-Benz vehicles equipped with the 722.9 (7G-Tronic) automatic transmission.

This unit forms part of the mechatronic system, integrating the Transmission Control Unit (TCU) with the valve body to ensure smooth gear shifting, pressure regulation, and ECU communication.

Key Specifications

• Part Number: A0335457332 / 0335457332
• Transmission Type: 722.9 (7G-Tronic)
• Generation: VGS2 (NAG2 – Version 2)
• Connector Type: 5-Pin
• Component Type: Conductor Plate with integrated TCU
• Fitment: Direct replacement
• Condition Options: New / Remanufactured / Pre-programmed

Vehicle Compatibility

Compatible with a wide range of Mercedes-Benz models equipped with 722.9 transmissions (VGS2 systems), including:

Vehicle Application (Typical)

Commonly found in:

C-Class (W204 – pre-facelift)

E-Class (W211 – facelift)

S-Class (W221 – pre-facelift)

ML-Class (W164 – facelift)

Always verify with VIN and Professional installation Highly recomended.

Function & Role

This conductor plate / TCU is responsible for:

• Gear selection and shift timing
• Hydraulic pressure control
• Communication with engine ECU
• Monitoring transmission speed and temperature sensors

A faulty unit may result in:

• Limp mode
• Harsh or delayed shifting
• Gear engagement issues
• Transmission fault codes

Technical Features

• Built from high-quality metal and composite materials for durability and heat resistance
• Designed to meet OEM specifications for precise fitment and performance
• Tested for reliability and long service life

Programming & Installation

• Units may be supplied as:
  • Blank (requires programming)
  • Pre-programmed (plug & play depending on supplier)
• VIN coding / SCN coding may be required after installation
• Recommended installation by a qualified transmission specialist

Important Fitment Notes

• Must match:
  • VGS2 generation
  • 5-pin connector configuration
• Not interchangeable with:
  • 4-pin (VGS3) units
  • 13-pin early versions

Incorrect fitment may result in:

• No communication with ECU
• Permanent limp mode