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Mercedes W204 Front Fuse Box Relay Control Unit SAM Module A2129005622
SKU: A2129005622-1
Product from a certified dismantling facility
Condition:
Used
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Mercedes W204 Front Fuse Box Relay Control Unit SAM Module is a factory-fitted electrical system component responsible for power distribution and circuit control in the front part of the vehicle. This module combines the functions of a fuse box and a control unit, ensuring stable operation of many key electrical consumers in the Mercedes vehicle.
Specifications and technical data
- SKU: A2129005622-1
- Mark: Mercedes (Genuine OE)
- Condition: Used
- OEM Part Number: A2129005622
- Substitutable numbers: A2129005622, A 212 900 56 22
- Location on the vehicle: Front
- Category: Fuses & Fuse Boxes
Function and application of the SAM module in the Mercedes W204
The front SAM module in the Mercedes W204 acts as a central hub for power distribution and relay control within the engine compartment and the front section of the body. It is responsible for logical circuit management, protecting the installation via fuses, and transmitting control signals to individual components.
By integrating the fuse box with control electronics, the system is more compact, and diagnostics and servicing become simpler. Replacing the complete module often allows for the quick restoration of proper electrical system operation without the need to interfere with wiring harnesses.
Design and placement in the vehicle
The described item belongs to the Fuses and fuse boxes category and is designed for installation in the front of the vehicle. This placement facilitates service access while shortening the length of key electrical installation sections between the battery, starter, alternator, and other consumers in the engine compartment.
The module is structurally adapted to work with the factory Mercedes wiring harness, which allows for the preservation of the vehicle's original electrical architecture. The use of dedicated connectors and fuse sockets reduces the risk of installation errors and improves connection reliability.
Benefits of using an original Mercedes module
Choosing an original SAM module for the Mercedes W204 primarily ensures compatibility with the vehicle's factory electronics. The unit is designed for specific solutions used in this model, which promotes proper communication with other control units and stable operation of the entire system.
- Full integration with the electrical system and vehicle control network.
- Properly selected values and layout of fuses and relays.
- Possibility to restore the proper operation of many circuits with a single installation.
- Reduced risk of compatibility issues compared to universal replacements.
The product comes from the Mercedes brand, which for many users means predictable behavior and easier diagnostics based on factory service procedures.
Condition, selection, and installation of the module
The offered module belongs to the group of used parts, which is a reasonable compromise between repair costs and maintaining the vehicle's original specifications. For proper selection, it is recommended to compare the markings with your existing unit and verify compatibility with the specific vehicle equipment version.
During installation, it is worth paying attention to:
- proper seating of all electrical harness connectors,
- checking the condition of fuse and relay sockets,
- using the appropriate fuse values in accordance with the vehicle documentation.
Due to the importance of the module for the operation of many vehicle systems, installation should ideally be entrusted to a person with experience in electrical installations in Mercedes cars.
Expanding the electrical system in a Mercedes – related items
If you are planning a comprehensive repair or upgrade of the electrical installation area in the front of your Mercedes and need other items from the same group, such as additional boxes, distribution modules, or housings with sockets, check the available parts in the Mercedes Fuses and fuse boxes category.
Summary
Mercedes W204 Front Fuse Box Relay Control Unit SAM Module is a practical solution for users who want to restore the proper operation of the electrical installation in the front of the vehicle while maintaining the manufacturer's factory concept. Using an original element from this category promotes system stability, facilitates diagnostics, and allows for more predictable vehicle behavior in daily operation.
Delivery details
Ship to: United Kingdom
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Estimated delivery dates include sellers dispatch time, origin postcode,destination postcode and time of acceptance, and will depend on the postage service selected and receipt of cleared payment. Delivery times may vary, especially during peak periods.
Will usually dispatch within same working day if paid before 14:00 BST (excludes weekends and holidays). Expected dispatch time may vary and is based on sellers order cut-off time.
In the automotive store Global Parts, we offer fast and secure deliveries for our customers in United Kingdom, ensuring maximum compliance with local service standards. Each order is processed with the utmost attention, guaranteeing a fluid shopping process and a timely delivery. If you need assistance in choosing the right part, our team of consultants will be happy to help you find the right part for your vehicle and provide information on installation, availability and parameters of the selected components.