1990-1993 Mercedes 300E Engine Control 0280 800 316 ECM ECU Module 107-3D2

🟩 1990–1993 Mercedes-Benz 300E Engine Control Module (ECU) — OEM

Part Number: 0 280 800 316 (0280800316)

Mercedes Reference: 107-3D2

Common Name: ECM / ECU / Engine Brain

Engine: 3.0L Inline-6 (M103)

Vehicle Removed From: 1991 Mercedes-Benz 300E (W124)

Condition: Tested • 30 Day Warranty • Free Returns

🔧 Item Description

• Genuine Mercedes-Benz OEM Engine Control Module (ECU) manufactured by Bosch.

• Fits W124 300E models equipped with the 3.0L M103 engine during the 1990–1993 production window.

• This unit is responsible for managing the fuel injection and ignition timing parameters to ensure optimal engine performance and efficiency.

• Removed from a functional donor vehicle with a healthy, smooth-running engine and no stored hardware faults.

✅ Functionality & Testing

• ✔️ System Communication: Verified 100% signal processing for fuel delivery and idle speed control.

• ✔️ Circuit Integrity: Bench-tested for stable voltage regulation and accurate sensor feedback interpretation.

• ✔️ Mechanical Inspection: The internal circuit board has been inspected for the common capacitor failure or burnt traces seen in vintage Bosch units.

• ✔️ Electrical: Connector pins are straight, clean, and free of any signs of moisture, corrosion, or thermal stress.

🧼 Condition & Inspection

• Professionally inspected and cleaned.

• Housing: The metal casing is in excellent vintage condition with minimal oxidation.

• Environmental Seal: The unit shows no signs of the moisture intrusion often found in older engine bay electronics.

🚗 Vehicle Compatibility Mercedes-Benz 300-Series (W124)

• 1990–1993 300E 3.0

• 1990–1993 300CE

• 1990–1993 300TE

• ⚠️ Fitment Note: Please match Bosch part number 0 280 800 316 exactly. These early analog/digital hybrid modules are specific to the engine displacement and emissions equipment of the vehicle.

⚙️ Features & Benefits

• OEM Reliability: High-quality Bosch engineering designed specifically for the M103 power plant.

• Direct Plug-and-Play: Unlike newer Mercedes modules, this generation typically does not require VIN-specific coding, making it a straightforward swap to restore your vehicle’s performance.

• Fixes Common Faults: Essential for resolving intermittent stalling, poor idle, or "No Start" conditions caused by aging electronic components.

🛡️ Warranty & Returns

• ✔️ 30 Day Warranty — Guaranteed electronic and signal functionality.

• ✔️ Free Returns — Shop with total confidence.

• ✔️ Professionally Tested