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Mercedes ISM – Cloning

Seeing the warning "Drive authorization system - Direct Select" or transmission stuck in Park? We repair and clone Mercedes ISM/DSM (A80) servo units across W164, W251, W221, and W212 with 100% Plug & Play – no online dealer SCN coding session required.

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100% Plug & Play1–3 days turnaround12-month warrantyAll 1 generations
Mercedes ISM intelligent servo module

MODEL GENERATIONS

All 1 Mercedes ISM Generations

Select your generation below to learn about typical symptoms and our 100% Plug & Play cloning solutions.

Mercedes ISM shift servo module

GENERATION 1 · 2005–2016

Mercedes ISM (Continental / Siemens VDO)

Applicable Models: Mercedes ML/GL W164 (2005–2011) · Mercedes R-Klass W251 (2005–2013) · Mercedes S-Klass W221 (2005–2013) · Mercedes E-Klass W212 (2009–2016) · Mercedes C-Klass W204 (2007–2014)

Common Symptoms:

  • Internal brush wear and commutator contamination in servo motor
  • Position encoder track signal degradation
  • Loss of drive authorization pairing with EZS
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SMOOTH PROCESS

How the Process Works

1

1. Source donor & Send in

Source a healthy used donor unit (e.g. from an auto recycler) and ship both your faulty Mercedes ISM and the donor unit to our workshop.

2

2. 1:1 Laboratory Cloning

Our engineers extract all security and configuration data and program your donor unit with 100% accuracy.

3

3. Reinstall & Drive

Install the cloned unit back into your vehicle. The engine starts immediately with your original keys – no dealer coding required.

PART NUMBER SEARCH

Search by Part Number (OEM)

Check the part number on your Mercedes ISM label to find a compatible donor unit.

8 part numbers matched

Frequently Asked Questions

Everything you need to know about Mercedes ISM, the cloning process, and diagnostics.

This indicates that the ISM shift actuator cannot determine gearbox shaft position or the internal DC servomotor has jammed, causing the car to lock in Park as a safety routine.

No. You can source a used donor ISM from a salvage yard and send both units to us. We clone all drive authorization data 1:1 for 100% Plug & Play.

Virgin reset clears the previous vehicle pairing, allowing any workshop to personalize the module using standard diagnostic tools.

Typical turnaround in our lab is within 24 hours of package arrival.

Need expert advice regarding your Mercedes ISM?

Call our certified technicians in Karlstad at 054-830 480 or send in your unit directly for rapid turnaround.

Send in for cloningSpeak with a specialist
Send in for cloning