Mercedes-Benz powertrain control module manufactured by BOSCH

📌 Automotive Part Details

• Condition: Used (Good Functional Condition)

• Part Name: Engine Control Unit / Engine Computer (MED17.7.2 ECU)

• Compatible with: Mercedes-Benz models equipped with M270 1.6L / 2.0L 4-Cylinder Turbo Petrol Engines:

  • A-Class (W176): A160 / A180 / A200 / A220 / A250

  • B-Class (W246): B160 / B180 / B200 / B220 / B250

  • CLA-Class (C117 / X117 Coupe & Shooting Brake): CLA180 / CLA200 / CLA220 / CLA250

  • GLA-Class (X156): GLA180 / GLA200 / GLA220 / GLA250

• Model Years: 2012 – 2019 (Please verify exact part number match)

🔍 Part Identification

• Brand/Type: Genuine Mercedes-Benz / Manufactured by BOSCH

• Mercedes Part No (Hardware): A 270 900 21 00 (A2709002100)

• Mercedes Part No (Software): A 270 901 17 00

• Bosch Part No: 0 261 S09 816

• System Type: MED17.7.2 4 ZYL. (4-Cylinder Motronic)

• Production: Made in Germany

📝 Item Description

Genuine Mercedes-Benz powertrain control module manufactured by BOSCH. This MED17.7.2 unit is the primary engine computer governing direct fuel injection, turbocharger boost, ignition mapping, and emissions for the M270 petrol engine series. The aluminum alloy casing is structurally solid. Both primary multi-pin electrical harness connector sockets are clean, straight, and clear of corrosion.

⚠️ Condition & Fitment Notes

• Condition Note: Clean salvaged part. Factory identifier label is completely legible with standard cosmetic handling marks on the housing. Tested and fully functional.

• Ideal For: Replacing a failed, shorted, or water-damaged engine computer that causes a crank-no-start condition, internal module communication errors, or persistent powertrain trouble codes.

• Important Note: This module features Mercedes-Benz drive authorization security encryption. Replacing this unit requires professional automotive programming to either clone your original ECU or renew/marry the module to your vehicle's VIN and FBS immobilizer system before the engine will start.

🛡 Warranty

• Warranty: 1-month replacement warranty covering ECU electronic component faults.