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OEM Mercedes · BMW · Audi
🟩 2001–2009 Mercedes-Benz W203 C-Class / W209 CLK-Class Rear SAM Control Unit — OEM
Part #: 2095450101 (A 209 545 01 01)
Vehicle Removed From: 2003 Mercedes-Benz C230 Kompressor (W203)
Condition: Tested • Cleaned & Inspected • 30 Day Warranty • Free Returns
Note: This is the early-production 209-series Rear SAM module. Please verify your original part number matches before purchase.
🔧 Item Description
Genuine Mercedes-Benz OEM Rear Signal Acquisition and Actuation Module (SAM).
Fits W203 C-Class (2001–2004) and W209 CLK-Class (2003–2005) models.
Acts as the primary power distribution hub and computer for the rear vehicle electronics, controlling tail lights, fuel level sending unit, trunk release, and rear sunshade.
Resolves common electrical issues such as erratic fuel gauge readings, non-functional tail lights, or central locking failures.
✅ Functionality & Testing
✔️ Circuit Integrity: All internal fused circuits and relay triggers tested for consistent 12V output and ground switching.
✔️ CAN-Bus Communication: Verified stable data exchange with the Front SAM and EIS (Ignition Switch); no "Signal Missing" or "Internal Controller Error" codes.
✔️ Diagnostic Sweep: Scanned for stored faults; module is clear and ready for vehicle adaptation.
✔️ Electrical: All multi-pin harness sockets are straight, clean, and free of moisture or heat-related damage.
🧼 Condition & Inspection
Professionally cleaned and inspected.
Internal: Inspected for moisture intrusion or corrosion; the circuit board is bone dry and free of the common damage caused by trunk seal leaks.
Housing: Plastic casing and locking tabs are intact for a secure, factory fit in the trunk area.
Fuses/Relays: Includes a full set of tested fuses and relays as pictured.
🚗 Vehicle Compatibility Mercedes-Benz C-Class & CLK-Class
2001–2004 C230, C240, C320 (W203 Pre-Facelift)
2003–2005 CLK320, CLK500, CLK55 AMG (W209)
Note: This part number 209 545 01 01 is specific to early-production electronics. It is essential to match this number to ensure compatibility with your specific vehicle options and wiring harness.
⚙️ Features & Benefits
Genuine Mercedes Part: Ensures factory-correct voltage regulation and safety protocol integration for rear safety lighting.
Reliability: Pre-screened for moisture damage—the #1 cause of failure for trunk-mounted SAM modules.
🔩 Installation & Programming Notes
Location: Mounted in the left-hand side of the trunk behind the interior paneling.
Pro Tip: Before installing, inspect your trunk seals and tail light gaskets. If water is entering the trunk, it will likely damage this replacement unit as well.
Programming: While many functions are plug-and-play, this unit may require SCN Coding with a Star Diagnosis (Xentry) tool to activate specific features unique to your VIN (e.g., trailer hitch or rear sunshade).
🛡️ Warranty & Returns
✔️ 30 Day Warranty — Guaranteed electronic functionality.
✔️ Free Returns — Shop with total confidence.
✔️ Tested & Cleaned