Mercedes-Benz SAM / BCM / EZS / CAS Modules for Cars and Commercial Vehicles

In the Mercedes SAM / BCM / EZS / CAS category you will find professionally tested body control modules and vehicle electronics components for Mercedes-Benz vehicles. Our range includes comfort control units, fuse box modules, body control systems and ignition authorization units used in both passenger cars and vans, including Mercedes A-Class, C-Class, E-Class, ML, GL, CLS, Vito, Viano, Sprinter W906 and W907.

Popular Mercedes Sprinter W906 SAM Module

One of the most commonly selected units in this category is the Mercedes Sprinter W906 SAM module A9069004700. This controller manages body electronics, fuse systems and communication between vehicle modules in Mercedes Sprinter W906 models. It is frequently replaced in vehicles with lighting faults, central locking issues or CAN communication problems.

Our offer includes front and rear SAM modules, BCM body control units, EZS / EIS ignition switch modules, CAS modules, fuse boxes and other components responsible for vehicle communication and comfort electronics management. Every Mercedes module is communication-tested and electronically inspected before shipping.

In Mercedes W204, W211 and Sprinter W906 models, water damage and corrosion inside the SAM module are among the most common electrical failures. Symptoms are often mistaken for engine ECU faults or CAN wiring issues, which is why accurate diagnostics of body control modules are extremely important.

What Mercedes Modules Are Available in This Category?

• Mercedes-Benz SAM modules (Signal Acquisition Module)
• Mercedes SAM / BCM fuse box units
• Mercedes EZS / EIS ignition switch modules
• CAS modules and comfort control units
• Central BCM body control modules
• Interior and vehicle equipment electronics controllers
• Lighting and CAN communication modules
• Mercedes EZS + ECU + ESL starter kits

Popular Mercedes Modules Available at ECUSALE

One of the best-selling products in this category is the Mercedes Sprinter W906 SAM module A9069004700, widely used in Mercedes commercial vans. The unit controls body electronics, fuse distribution and communication between onboard systems.

We also offer Mercedes-Benz ECU ENGINE CONTROLLER units and Mercedes ISM / EGS / TCM transmission controllers used in models such as W204, W211, W212, ML and GL.

Specialized automatic gearbox modules are also available, including the Mercedes ISM controller A1644460610 VIRGIN designed for ML W164 and R-Class W251 vehicles.

What Does the SAM / BCM / EZS Module Control in Mercedes Vehicles?

Mercedes-Benz body control modules manage a wide range of comfort and electronic systems inside the vehicle. They are responsible for functions such as lighting, windshield wipers, central locking, CAN communication, electric windows, engine start authorization and key recognition.

A faulty SAM or BCM module may cause starting issues, diagnostic communication loss, lighting failures, battery drain or CAN-BUS errors.

Most Common Symptoms of Mercedes SAM / EZS / BCM Failure

• Engine will not start
• No communication with modules during diagnostics
• Lights or wipers not working
• Central locking malfunction
• SAFE messages or immobilizer errors
• No reaction when turning the key
• Random CAN-BUS faults
• Battery draining while parked
• Water damage or corrosion inside the SAM module

Tested Mercedes-Benz Modules with Warranty

At ECUSALE we supply only tested automotive electronic modules. Every Mercedes SAM, BCM, EZS or CAS controller is checked for communication and basic electronic functionality before sale. Depending on the model, we offer used units, programming-ready versions, VIRGIN modules or complete Plug & Play sets.

Many modules can be matched by Bosch, Siemens, Continental, TEMIC or Mercedes-Benz OEM part numbers. If you are unsure which module is compatible with your vehicle, simply send us a photo of your original controller or your VIN number.

Mercedes SAM / BCM / EZS Compatibility

The modules available in this category are commonly used in vehicles such as:

• Mercedes A-Class W169 / W176
• Mercedes C-Class W203 / W204 / W205
• Mercedes E-Class W211 / W212
• Mercedes CLS W218
• Mercedes ML W164 / W166
• Mercedes GL X164 / X166
• Mercedes Sprinter W906 / W907
• Mercedes Vito / Viano W639 / W447
• Mercedes S-Class W221 / W222

FAQ – Mercedes SAM / BCM / EZS / CAS

Does a Mercedes SAM module need programming after installation?

It depends on the module version and vehicle model. Some SAM modules require coding and adaptation using Star Diagnosis or Xentry, while certain Plug & Play versions operate immediately after installation.

How can I tell if a Mercedes SAM module is faulty?

Typical symptoms include CAN communication errors, lighting problems, non-working wipers, battery drain or no ignition response. In many cases the issue is caused by water intrusion or corrosion inside the module.

Will a used Mercedes SAM module work without coding?

Some Mercedes models may operate after simple installation, but most controllers require coding and adaptation to the vehicle configuration.

Why does Mercedes show CAN errors after replacing the SAM module?

In most cases this happens because of mismatched equipment versions or incompatible part numbers. Mercedes-Benz uses many different SAM module configurations depending on vehicle equipment.

Can a Mercedes EZS module be matched by part number?

Yes. Matching the correct part number is essential for EZS / EIS modules. In some cases immobilizer data transfer or VIRGIN preparation is also required.

Are the Mercedes modules tested before shipping?

Yes. All SAM, BCM, EZS and CAS modules available at ECUSALE are electronically tested before dispatch. We verify communication, power supply and basic module functions.

How do I choose the correct SAM module for Mercedes Sprinter W906?

The safest method is to match the exact part number shown on the label of the original controller. Sprinter W906 models use many different electrical and equipment configurations.

Does the Mercedes BCM module control central locking?

Yes. The BCM / SAM module controls comfort functions such as central locking, electric windows, interior lighting, windshield wipers and communication with other onboard controllers.

Mercedes will not start after SAM module water damage – can it be repaired?

In many cases the damaged SAM module can be replaced with a tested used controller prepared for adaptation, or the original data can be cloned if the electronics are not completely destroyed.

Where can I buy a Mercedes W204 or W211 SAM module?

At ECUSALE you can find SAM, BCM, EZS and CAS modules for the most popular Mercedes-Benz models. We offer fast shipping, part matching assistance and technical support before purchase.