Choosing the ISM module – A0002701852 and A2C53423295
A used, original ISM module (Siemens VDO) working with the 7G-Tronic 722.9 gearbox. This is the VIRGIN version – clean and reset, ready for programming. The bench test is done before every dispatch.
After installation
- calibration of the positioner (selector),
- adaptation of the ISM module to the gearbox and the car.
Alternatively we clone the data from your old module – included in the price.
Application and selection
Application of this number according to the Mercedes-Benz catalogue: C W204 (2009–2014), CL W216 (2007–2009), CLS W218 (2012–2018). What matters are the codes on the label of your module: A0002701852 and A2C53423295. In the Mercedes-Benz catalogue, A0002701852 supersedes the older numbers: A1644460310, A1644460410, A1644460510, A1644460610, A1644460710, A0044460310, A0002701652, A0002701752.
Numbers on the label
| Label | Number (different formats) |
| Mercedes-Benz number | A0002701852 / 0002701852 / A 000 270 18 52 |
| Siemens VDO number | A2C53423295 |
Typical symptoms
- the gearbox does not respond when D or R is selected,
- gearbox fault message,
- the gearbox goes into limp mode,
- the car cannot be shifted out of P.
The same symptoms can be caused by the selector, the wiring or the gearbox control unit (VGS) – run a diagnosis before you buy.
Have a different number?
Check the other ISM modules we offer: A0002701952, A0002703252. Always compare the number on the label.
Warranty
The warranty on this module is 6 months. You will find the other gearbox control units in the category Mercedes-Benz Transmission Control Units (TCU). Questions about choosing the number? Contact us.
FAQ – ISM module A0002701852
| Question |
Answer |
| How do I know that A0002701852 will fit? |
The label of your module must carry the same codes: A0002701852 and A2C53423295. |
| What does an ISM module do? |
The ISM (Intelligent Servo Module) sits on the 7G-Tronic 722.9 gearbox and electrically shifts it into P, R, N and D when commanded by the selector. It is a different module from the VGS gearbox control unit. |
| How do I put module A0002701852 into service? |
Calibrate the positioner, then adapt the ISM module to the gearbox and the car. Instead, we can clone the data from the old module – included in the price. |
| In which cars is A0002701852 used? |
According to the Mercedes-Benz catalogue: C W204 (2009–2014), CL W216 (2007–2009), CLS W218 (2012–2018). The label number has the final say. |