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OEM Mercedes · BMW · Audi
🟩 2003–2006 Mercedes-Benz 5.0L V8 (M113) Engine Control Module (ECU) — OEM
Part Number: A 113 153 12 79 (1131531279)
Common Name: ECM (Engine Control Module) / DME / Engine Computer
Engine Compatibility: 5.0L V8 (M113)
Vehicle Removed From: 2003 Mercedes-Benz SL500 Roadster (R230)
VIN: WDBSK75F93F018957
Condition: Tested • Cleaned & Sanitized • 30 Day Warranty • Free Returns
🔧 Item Description
Genuine Mercedes-Benz OEM Engine Control Module (ECU).
Specifically calibrated for the 5.0L M113 V8 engine found in the SL500, S500, and CL500 during the early to mid-2000s.
This Bosch-manufactured unit manages fuel injection, ignition timing, and emissions systems.
Removed from a smooth-running donor vehicle with no "Check Engine" lights or driveability issues.
✅ Functionality & Testing
✔️ Full Communication: Scanned with professional diagnostic equipment; verified 100% CAN-bus connectivity with the EIS (Ignition) and TCU (Transmission) modules.
✔️ Drive Cycle Verified: Tested in a live vehicle; verified stable idle, correct fuel trim responses, and proper fan/accessory control.
✔️ Component Check: Verified all internal drivers for fuel injectors, ignition coils, and oxygen sensors are firing within factory specifications.
✔️ Electrical: Five-plug connector ports are pristine—no bent pins, no oil intrusion, and no signs of thermal stress.
🧼 Condition & Inspection
Professionally cleaned and sanitized.
Casing: The aluminum housing is in excellent condition with no corrosion or structural damage.
Environmental Seal: The factory sealant remains intact, ensuring the internal circuitry has been protected from engine bay moisture.
🚗 Vehicle Compatibility Mercedes-Benz Models with 5.0L V8 (M113)
2003–2006 SL500 (R230)
2003–2006 S500 (W220)
2003–2006 CL500 (W215)
⚠️ IMPORTANT PROGRAMMING NOTE: This is a "theft-relevant" component and is digitally locked to the donor vehicle's VIN and security system. To use this in your vehicle, you must have a qualified technician "virginize" the module or clone the data from your original ECU onto this unit. It will not start another vehicle without specialized programming.
⚙️ Features & Benefits
OEM Reliability: Far superior to generic aftermarket units; ensures your M113 V8 retains its factory power delivery and fuel efficiency.
Direct Replacement: Exact physical fit for the ECU box in the engine compartment.
Solution for: Fixes issues related to internal microprocessor failure, "No Start" conditions, or permanent fault codes that cannot be cleared.
🛡️ Warranty & Returns
✔️ 30 Day Warranty — Guaranteed electronic functionality and communication.
✔️ Free Returns — Shop with total confidence.
✔️ Tested & Cleaned