08-11 Mercedes W204 C300 C250 C350 C63 Rear Fuse Relay Box Module 204 545 3901

🟩 2008–2011 Mercedes-Benz W204 C-Class Rear Fuse & Relay Box / SAM Control Module — OEM
OEM Part #: 204 545 39 01
Removed From: 2008 Mercedes-Benz C300

🧼 Condition:
✨ Tested — Fully Functional
🧽 Cleaned and sanitized
🔍 All fuse slots, relay sockets, and electrical connectors inspected
📦 Housing intact with no cracks or broken mounting points
🛡️ 30 Day Warranty
↩️ Free Returns

🚗 Compatible Mercedes-Benz Models (W204 Platform):

W204 C-Class Sedan & Coupe (2008–2011):

✔️ C250
✔️ C300
✔️ C350
✔️ C63 AMG (verify part number & equipment level)

⚠️ Fitment Notes:
• Compatibility depends on part number, software version, and factory options, not just model/year
• Rear fuse/SAM modules can vary by drivetrain, lighting package, and market
• Always confirm your original module part number 2045453901 before purchase

⚙️ Module Function & Responsibilities:
This Rear Fuse & Relay Box, commonly referred to as the Rear SAM (Signal Acquisition Module), is a critical body control and power distribution unit. It manages and monitors multiple rear-vehicle electrical systems, including:

• Rear exterior lighting (tail lights, brake lights, turn signals)
• Trunk release and trunk lighting
• Fuel pump and rear power distribution circuits
• Rear fuse and relay management
• CAN-BUS communication with other vehicle control modules
• Diagnostic monitoring and fault reporting

A failing rear SAM can cause intermittent lighting issues, trunk malfunctions, warning messages, or communication faults.

🔧 Installation & Programming Notes:
• OEM direct replacement hardware
• Physically plug-and-play, but SCN coding or programming may be required depending on vehicle configuration
• Dealer or professional diagnostic programming recommended
• Battery should be disconnected before installation

⚠️ This module does not reset VIN or mileage.

🔍 Physical & Cosmetic Condition:
• Clean OEM unit with normal cosmetic wear from prior use
• No corrosion or water intrusion observed
• Connector pins straight and intact
• Ready for installation and coding

🎯 Ideal For:
• Replacing a faulty or water-damaged rear SAM
• Resolving rear lighting or trunk electrical problems
• Fixing CAN-BUS or power distribution faults
• OEM-correct electrical repairs without aftermarket risks

⚠️ Important Buyer Notes:
• This is a used OEM electronic module
• Cosmetic wear does not affect performance
• Buyer is responsible for confirming compatibility and any required programming

✔️ Genuine OEM Mercedes-Benz W204 Rear Fuse & Relay Control Module, tested and cleaned, backed by a 30-day warranty with free returns for confidence and peace of mind.