Mercedes Front SAM Module Clone Programming Service – W166 ML/GLE & X166 GL/GLS
Mercedes Front SAM Module Clone Programming Service – W166 ML/GLE & X166 GL/GLS
Mercedes Front SAM Module Clone Programming Service – W166 ML/GLE & X166 GL/GLS
Service Overview
This service provides clone programming for the Mercedes-Benz Front SAM (Signal Acquisition Module) – the main control unit responsible for front electrical systems, fuses, relays, and numerous vehicle body functions.
We read and copy all original data from your factory Front SAM and transfer it to the replacement unit with the exact same part number (provided by you). This process preserves your vehicle’s complete configuration, enabling a true plug-and-play installation — no additional dealer coding required.
Your replacement Front SAM will function exactly like the original, retaining all factory options and features.
Important Notes
- Exact part number match is REQUIRED for a successful clone.
- Both the original and replacement Front SAM units must be shipped to us.
- The cloned module is returned ready for installation.
Supported Vehicles
This service applies to Front SAM modules from the following Mercedes-Benz models and years (W166 and X166 chassis):
Mercedes-Benz ML-Class / GLE-Class (W166)
- Model Years: 2012–2019
- Trims: ML250, ML350, ML400, ML500, ML550, ML63 AMG, GLE300d, GLE350, GLE400, GLE450, GLE550, GLE63 AMG (including 4MATIC variants)
Mercedes-Benz GL-Class / GLS-Class (X166)
- Model Years: 2013–2019 (up to 2020 in some markets)
- Trims: GL350, GL450, GL500, GL550, GL63 AMG, GLS350d, GLS450, GLS500, GLS550, GLS63 AMG (including 4MATIC variants)
Other models may also qualify if the Front SAM part number is an exact match.
Requirements
- Send your original Front SAM module and a replacement module with the same part number.
Common Front SAM Part Numbers
This service supports modules under the A166 series, including (but not limited to):
- A166 900 18 14
- A166 900 17 08
- A166 900 41 12
- A166 900 94 11
- A166 900 06 05
- A166 900 15 10
- A166 900 33 01
- A166 900 36 08
- A166 900 56 15
- A166 900 90 03
- Other supersessions or variants within the A166900* family (e.g., A1669011202, A2469025502)
✅ Exact part number match is required.
If your part is not listed, please contact us before purchasing to confirm compatibility.

General FAQ
See All
What is immo off or immobilizer delete, and will it work for my VW or Audi?
Immobilizer delete (immo off) bypasses the immobilizer in the engine control unit (ECU) of VW and Audi vehicles. It’s used when the vehicle starts but immediately shuts down due to a fault in the immobilizer system, often with fault codes P1570 or P0513. Immo off services will not work if the vehicle does not start at all; it must start and then be shut down due to the immobilizer.
What is module cloning, and do part numbers need to match?
Module cloning involves copying all the data from one module to another, allowing the replacement to function just like the original. While it's generally recommended to match part numbers for compatibility, the necessity can vary by module. Some require exact matches, while others are more flexible and allow cloning between different part numbers. Each product listing on our website specifies the part number requirements. If you're unsure, feel free to reach out for guidance.
Do you have to open the module cases?
We only open module cases when absolutely necessary. For services that don’t require opening, we won’t open the module. However, depending on how badly damaged your original ECU is, sometimes opening the module is the only way to retrieve data. Additionally, some services don’t have a plug-in method at all and require direct access to the board, including soldering or chip replacement. The need to open modules is not specific to us but is sometimes essential depending on the condition of the ECU.
What are the shipping procedures and turn around times?
After purchasing, you will receive an email with shipping instructions. You are responsible for shipping your modules to us, and we will cover the return shipping. You can use any shipping service that is convenient for you. We typically use UPS Ground (3-5 days) for return shipping, but in some cases, we may use USPS or FedEx. Once we receive your package (shipping times depend on how quickly you ship it and the service used), we typically ship it back the next business day. Some services may require a 2-day handling time, depending on the complexity.
For detailed shipping times to and from your location, check out our shipping speed map.
What is the warranty?
We offer a 90-day warranty on programming only. This covers the accuracy of the programming performed, but does not extend to the module hardware itself.
Mercedes Front SAM Module Clone Programming Service – W166 ML/GLE & X166 GL/GLS