2009 BMW M3 2D Convertible, StandardFACTORY OEM SERVICE PROCEDURE

MSS60 Engine Control System

The S65 features a revised engine control system, the MSS60, which is based on the MSS65 in the S85 engine.

This engine control system is designed for engine speeds of up to 9,000 RPM.

These engine control units belong to the latest generation and are characterized by an extremely high data processing capability, processing millions of calculations per second.

The main functions are described in the product information for the E60 M5.

The following is a description of the areas of the system that differ from the MSS65.

Fig 1: Identifying Engine Control Unit
G06926716Courtesy of BMW OF NORTH AMERICA, INC.
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.

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