Mercedes Gearbox Control Units – ISM, EGS, TCM Modules for 5G-Tronic, 7G-Tronic and 9G-Tronic Automatics
Specialized Controllers for Mercedes Automatic Transmissions
Our offer includes control units dedicated to all main types of automatic transmissions installed in Mercedes-Benz vehicles. We provide both ISM modules (Intelligent Selector Module) and classic EGS / TCM controllers responsible for the operation of 5G-Tronic, 7G-Tronic, and 9G-Tronic gearboxes. Each product has been tested and is ready for installation in the vehicle.
Why buy from us?
Every Mercedes gearbox control unit we offer is thoroughly tested on a diagnostic bench. We have specialized equipment that allows us to prepare modules for smooth installation. We know very well that purchasing a used control unit from a dismantled vehicle often results in errors during installation due to data from the previous car.
So if you are looking for a more affordable yet fully verified and prepared gearbox controller, our offer is a safe solution. All modules we offer are reset to factory state (VIRGIN) – ready to be coded just like a brand-new OEM part.
Simple gearbox control unit programming method:
The programming process is exactly the same as with a new OEM part – using STAR DIAGNOSIS or any other diagnostic interface compatible with the Mercedes system. The module should be coded and adapted to the vehicle according to the manufacturer’s procedure.
If you encounter any difficulties during coding or need assistance with adaptation – our technical department is here to help. We offer step-by-step guidance or, if needed, can prepare the module for your specific VIN.
Which automatic transmissions does Mercedes use?
- 5G-Tronic (722.6) – classic 5-speed automatic transmission widely used from the 1990s to 2010 (E-Class W210, S-Class W220, ML W163, G-Class, Sprinter W906)
- 7G-Tronic (722.9) – 7-speed transmission used since 2003, mainly in rear-wheel-drive models: E W211/W212, CLS, ML W164, GL X164, R W251, C-Class W204
- 7G-DCT (724.0) – 7-speed dual-clutch gearbox installed in A, B, CLA, GLA models – series 176, 246, 117, 156
- 9G-Tronic (725.0) – modern 9-speed automatic used in newer models after 2014: E W213, C W205, GLC, GLE W166/W167, CLS C257
Suitable controllers for the above transmissions:
- EGS52 / EGS53 (722.6) – used in 5G-Tronic. A standalone control unit (in a separate casing), usually installed under the hood or inside the cabin
- VGS / VGS2 / VGS3 (722.9) – control unit integrated with 7G-Tronic mechatronics (mounted inside the transmission oil pan). Possible variants: VGS-NAG2, VGS2-FDCT, VGS3
- TCM 7G-DCT (724.0) – separate controller mounted on or near the gearbox
- TCM 9G-Tronic (725.0) – newer type of control unit, often integrated with the valve body, communicating with the ECU via CAN
- ISM modules – electronic gear selectors used in cars with 7G and 9G gearboxes, e.g. A1644460710, A0002703252 – mounted near the steering column or in the center console
How to choose the right control unit?
The correct controller depends on: gearbox number, old controller number, VIN, and the type of gear selector used (manual, ISM). If you're unsure which module fits your Mercedes – contact us. We will check compatibility and help you select the right version.
Example Mercedes models and corresponding controllers
- Mercedes ML W164, GL X164, R W251 – 7G-Tronic gearbox, VGS2/VGS3 controller + ISM module (e.g. A1644460610, A1644460710)
- Mercedes E W211, S W221, CLS C219 – 7G-Tronic, VGS controller, integrated mechatronics
- Mercedes Sprinter W906 – 5G-Tronic or 7G-Tronic depending on year, EGS or VGS controller, often with ISM
- Mercedes A W176, CLA C117, GLA X156 – 7G-DCT gearbox, separate TCM controller
- Mercedes E W213, GLE W166/W167 – 9G-Tronic, integrated controller, depending on the version may require special configuration
FAQ – Mercedes gearbox control units ISM, EGS, TCM and VGS
1. Is a Mercedes ISM, EGS or TCM gearbox control unit ready for installation?
Yes. Our Mercedes gearbox control units are tested and prepared for further adaptation in the vehicle. Depending on the exact model, the module can be supplied in VIRGIN condition, which means it is reset and ready to be coded like a new OEM part using STAR DIAGNOSIS or another diagnostic tool compatible with Mercedes systems.
2. Does the Mercedes ISM module A1644460710 fit ML W164, GL X164 and R W251?
Mercedes ISM modules such as A1644460710, as well as related part numbers, are commonly used in Mercedes ML W164, GL X164 and R W251 models equipped with the 7G-Tronic automatic gearbox. Before ordering, always compare the part number with your original module or send us a photo of the label for compatibility verification.
3. Does a VGS control unit for the 7G-Tronic 722.9 gearbox require programming?
Yes. A VGS / VGS2 / VGS3 control unit for the 7G-Tronic 722.9 gearbox usually requires coding and adaptation to the vehicle. A prepared VIRGIN module can be programmed in a similar way to a new Mercedes part, following the manufacturer’s diagnostic procedure.
4. How can I choose the correct Mercedes gearbox control unit by part number?
The safest way to select the correct unit is to compare the part number of the original controller, the gearbox type and the vehicle VIN. For Mercedes automatic transmissions, important references include EGS52, EGS53, VGS, VGS2, VGS3, TCM and ISM. If you are not sure which module is correct for your vehicle, contact us before purchase.
5. Does an EGS52 or EGS53 control unit fit the Mercedes 5G-Tronic 722.6 gearbox?
EGS52 and EGS53 control units are used with Mercedes 5G-Tronic 722.6 automatic transmissions. They can be found in models such as the E-Class, S-Class, ML, G-Class and Sprinter. Compatibility should always be confirmed by the control unit number and the vehicle specification.
6. Can a used Mercedes gearbox control unit be installed without preparation?
In most cases, this is not recommended. A used control unit may still contain data from the previous vehicle, which can cause communication faults, gearbox lock issues or problems during adaptation. That is why we offer tested and professionally prepared modules to make installation as safe and reliable as possible.
7. Can a TCM for the 9G-Tronic 725.0 gearbox be prepared for a specific VIN?
In many cases, a TCM 9G-Tronic 725.0 control unit may require special configuration or preparation for a specific vehicle. To verify compatibility, we usually need the original module number, the VIN and vehicle details, for example Mercedes E W213, C W205, GLC, GLE or CLS C257.
8. Do you provide support with Mercedes gearbox control unit coding after purchase?
Yes. We provide technical support for installation and adaptation of Mercedes gearbox control units. If you experience any problems while coding an ISM, EGS, VGS or TCM module, we can help you check the procedure and confirm whether the unit has been correctly matched to the vehicle.
