Description

Mercedes Actros MP4 SAM Module Repair – Restore Full Electrical Control

At Autolectronix, we specialize in the repair, refurbishment, and replacement of the Mercedes-Benz Actros MP4 Single SAM Module, part number A0014467658/001, manufactured by Continental. This unit is a critical component in the Mercedes Actros MP4 truck’s electrical distribution system, responsible for managing power supply, fuses, and relay control across the vehicle.

The SAM (Signal Acquisition and Actuation Module) acts as the electrical brain for multiple systems, including lighting, wipers, cabin electronics, trailer interface, and CAN communication. When this unit fails, it can cause a wide range of frustrating electrical faults, communication errors, or complete vehicle shutdowns.

⚙️ Common Faults We Repair

Our technicians are highly trained in diagnosing and repairing SAM modules for Mercedes Actros MP4 models. Common issues include:

• Non-functional or intermittent lighting systems (headlights, tail lights, or indicators).

• Wiper and washer systems not responding.

• Trailer connection or power faults.

• Burned fuse holders and melted connections due to overload or poor contact.

• Fuse or relay overheating, short-circuit damage.

• CAN communication errors between vehicle systems.

• Moisture ingress or corrosion on internal boards.

• Truck won’t start or fails to shut down due to SAM malfunction.

🔍 Supported Truck Models

This SAM Module (A0014467658/001) is commonly installed in the following Mercedes-Benz Actros MP4 variants:

• Actros 1845, 2545, 2651, and 3350 series

• Actros MP4 and MP5 long-haul and construction versions

• Arocs and Antos models with similar electrical layouts

Our repair solutions also cover SAM modules used across Mercedes-Benz Euro 6 trucks and Bus chassis using the same electrical architecture.

🔧 Our Repair Process

1. Initial Testing – The SAM module is fully bench-tested to identify communication and output faults.

2. Disassembly & Inspection – All PCB layers and terminals are examined for corrosion, burn marks, or broken solder joints.

3. Component-Level Repair – Damaged microchips, relays, and resistors are replaced using OEM-spec components.

4. Burned Fuse Socket Rebuilds – Any heat-damaged fuse holders or power tracks are repaired or replaced to restore proper connectivity.

5. Moisture & Heat Damage Restoration – All boards are cleaned, re-sealed, and treated to prevent future corrosion.

6. Final Verification – Each unit is re-tested on our Mercedes MP4 test bench for communication, CAN signal integrity, and current draw validation.

💡 Repair vs Replacement

Rather than replacing the SAM module with a costly new part, Autolectronix provides a cost-effective alternative — repairing your existing unit to OEM standard.
If your module is beyond repair, we can supply a coded and tested used or new replacement, transferring the original vehicle data where possible to ensure plug-and-play installation.

🧩 Part Numbers Covered

We support a wide range of Mercedes-Benz SAM module part numbers, including:

• A0014467658 /001

• A0014467658 /002

• A0014467658 /003

• A0014467658 /004

• A0014467658 /005
  and equivalent Continental A2C90303002 and A2C90303006 versions.

🛡️ Warranty & Quality

All repairs are backed by our 3-month standard warranty, extendable to 12 months on request. Each repaired SAM undergoes load and temperature simulation testing before dispatch to guarantee long-term reliability.