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🟩 2001–2009 Mercedes-Benz W203 / W209 Rear SAM Control Module & Fuse Box — OEM
Part Number: A 203 545 34 01 (or compatible supercessions)
Common Name: Rear Signal Acquisition & Actuation Module (SAM)
Location: Rear Left (Driver Side) Trunk Compartment
Vehicle Removed From: 2005 Mercedes-Benz C240 Luxury Sedan (W203 Facelift)
VIN: WDBRF81J95F640755
Condition: Tested • Cleaned & Sanitized • 30 Day Warranty • Free Returns
🔧 Item Description
Genuine Mercedes-Benz OEM Rear SAM Control Module.
Fits W203 C-Class and W209 CLK-Class models for the 2001–2009 production range.
This module acts as the electrical "brain" for the rear of the vehicle, controlling the fuel pump, fuel level sender, tail lights, trunk release, and rear sunshade (if equipped).
Includes the complete fuse and relay distribution panel with factory relays as pictured.
✅ Functionality & Testing
✔️ Lighting & Signals: Tested in a live donor vehicle; verified correct operation of brake lights, turn signals, reverse lights, and license plate lamps.
✔️ Fuel System: Verified signal processing for the fuel level sending unit and power delivery to the fuel pump relay.
✔️ Diagnostic Check: Scanned with Mercedes Star Diagnosis (SDS); zero stored fault codes related to internal microprocessor failure or CAN-bus communication errors.
✔️ Electrical: All connector ports on the rear are clean, bright, and free of any bent pins.
🧼 Condition & Inspection
Professionally cleaned and sanitized.
⚠️ Water Damage Inspection: Rigorously inspected for the most common W203 failure: zero corrosion or water damage. Rear SAMs are often damaged by trunk seal leaks; this unit is bone dry with a pristine circuit board.
Housing: The plastic mounting bracket and locking tabs are intact for a secure installation.
Fuses/Relays: Comes populated with a set of tested relays. Note: We recommend confirming fuse amperages match your vehicle's specific option codes.
🚗 Vehicle Compatibility Mercedes-Benz C-Class (W203)
2001–2007 C230, C240, C280, C320, C350, C32/C55 AMG Mercedes-Benz CLK-Class (W209)
2003–2009 CLK320, CLK350, CLK500, CLK550, CLK55/CLK63 AMG
⚠️ Important Fitment Note: This is a "plug-and-play" mechanical fit, but because the Rear SAM is a programmable module, you may need to perform "version coding" with a professional scan tool (like SDS or Autel) to match it to your vehicle's specific equipment (e.g., Sedan vs. Coupe vs. Wagon tail light configurations).
⚙️ Features & Benefits
OEM Reliability: Essential for resolving issues like incorrect fuel gauge readings, non-functional tail lights, or trunk release failures.
Direct Replacement: Exact physical replacement for the original factory unit.
Genuine Quality: Engineered to factory specifications for correct current distribution and module communication.
🛡️ Warranty & Returns
✔️ 30 Day Warranty — Guaranteed electronic and signal functionality.
✔️ Free Returns — Shop with total confidence.
✔️ Tested & Cleaned