Description
Mercedes 7G-Tronic 722.9 VGS3 Transmission Control Module (TCM) Programming & Cloning Service
Mercedes 7G-Tronic 722.9 TCM / VGS3 Programming Specialists
The Mercedes-Benz 7G-Tronic (722.9) transmission is fitted with a VGS3 Transmission Control Module (TCM), commonly referred to as the conductor plate. Unfortunately, these modules are known to fail over time, causing a wide range of gearbox and drivability issues.
When a VGS3 module develops a fault, you may experience:
- Transmission malfunction warning messages
- Engine management light illuminated
- Vehicle entering limp mode
- Significant loss of power
- Gearbox stuck in a single gear
- Failure to select gears
- Harsh or delayed gear changes
- Intermittent transmission faults that gradually become permanent
At Motortronics, we offer specialist programming, cloning, and virginisation services for Mercedes 7G-Tronic VGS3 transmission control modules, providing a cost-effective alternative to expensive dealer replacements.
Used TCM Programming & Replacement Solutions
Mercedes-Benz implements strict anti-theft and drive authorisation systems within the transmission control module, making replacement units difficult to install without specialist equipment.
Using advanced bench programming equipment, we can prepare replacement VGS3 modules for installation, saving you the expense of purchasing brand-new dealer units.
VGS3 Virginisation / Reset Service
We can reset compatible VGS3 modules back to factory-new condition (virgin state).
Once reset, the module can be installed into the vehicle and programmed using many professional diagnostic systems, including:
- Launch
- Autel
- Xentry
- Other dealer-level diagnostic equipment
This service is ideal for workshops and vehicle owners using replacement or second-hand modules.
VGS3 Cloning & Data Transfer
Where possible, we can transfer the original data from your faulty transmission control module directly onto a replacement unit.
This process copies important vehicle-specific information, including:
- VIN information
- Drive authorisation data
- SCN coding
- Adaptation values
- Transmission configuration
By cloning the original data, the replacement module can operate as if it were the original unit, bypassing many of the restrictions normally associated with used Mercedes transmission modules.
Common Fault Symptoms
We regularly receive VGS3 modules exhibiting the following faults:
- Transmission malfunction displayed on instrument cluster
- Gearbox entering limp mode
- Reduced engine power
- Intermittent gear selection issues
- Sticking in gear
- Harsh or jerky gear engagement
- Failure to upshift or downshift
- Vehicle remaining in a single gear
- No gear selection available
Common Fault Codes
The following fault codes are commonly associated with failed VGS3 transmission control modules:
- P2206 – Output Speed Sensor (Y3/8n3) Fault
- P2207 – Output Speed Sensor (Y3/8n3) Fault
- P2550 – Output Speed Sensor (Y3/8n3) Fault
- P0717 – Turbine Speed Sensor (Y3/8n1) Signal Not Available
- P0718 – Turbine Speed Sensor (Y3/8n1) Defective
- P0722 – Output Speed Sensor (Y3/8n3) Signal Not Available
- P2201 – Internal Speed Sensor (Y3/8n2) Defective
Supported Part Numbers
We provide programming, cloning, and virginisation services for a wide range of Mercedes VGS3 transmission control modules, including:
- VGS3-NAG2
- A0034460310
- 0034460310
- A0335456732
If your part number is not listed, please contact us as we support many additional variants.
Why Choose Motortronics?
- Cost-effective alternative to dealer replacement
- Programming of used and replacement modules
- Advanced VGS3 cloning and data transfer services
- Fast turnaround times
- Extensive Mercedes electronic systems experience
- Support for both trade and retail customers
If you’re experiencing Mercedes 7G-Tronic transmission faults or require assistance with a replacement VGS3 module, contact Motortronics today and our team will be happy to help.



