Product Description

Replace your faulty or malfunctioning Engine Control Unit (DME / ECU) with this OEM BMW module, part number 8617551, designed for the BMW 520i F10 equipped with the N20 engine.

The DME (Digital Motor Electronics) is the main engine computer, responsible for managing fuel injection, ignition timing, turbocharger operation, and overall engine performance. A failing ECU can cause starting issues, reduced performance, and engine warning lights.

Features

• OEM BMW Engine Control Unit (DME / ECU)
• Part Number: 8617551
• Compatible with N20 engine
• Fits BMW 520i F10 (5 Series)
• Controls fuel system, ignition, and turbo operation
• Direct OEM replacement unit

Condition

Used / OEM (tested working unless otherwise stated)

Important Notes

• ECU is VIN-locked and requires coding/programming
• May require ISN matching, key synchronization, or cloning
• Professional installation recommended
• Please verify part number compatibility before purchase

Common Symptoms Fixed

• Engine will not start
• Check engine light ON
• Poor engine performance or misfires
• Communication faults with ECU
• Fault codes related to engine management

Fitment

BMW 5 Series:

• F10 520i (N20 engine)

Tags 

BMW DME ECU 8617551, F10 520i ECU, BMW N20 engine control unit, BMW engine computer module, BMW ECU replacement, BMW 5 series ECU

Return Policy

Returns are accepted within 14 days of delivery. Items must be returned in the same condition as received and in the original packaging.

The buyer is responsible for return shipping costs.

Any customs fees, taxes, or import duties are the responsibility of the buyer.

All parts are used OEM components. We are not responsible for installation issues, coding requirements, or labor costs. Please ensure compatibility with your vehicle before purchasing.