Engine Control Module

The high level of technology on the N63 engine place high demands on the DME system. The ECM used features a very powerful 150 MHz processor and features a new connector concept.

The connector concept consists of five chambers and functional configuration. This means each chamber is assigned to a specific function group.

The following list outlines the configuration of the chambers in corresponding order:

• Chamber 1 (8 pins): Ignition
• Chamber 2 (59 pins): Engine plug, cylinder bank 1 and several central engine functions
• Chamber 3 (40 pins): Vehicle plug
• Chamber 4 (54 pins): Engine plug, cylinder bank 2 and several central engine functions
• Chamber 5 (16 pins): Fuel injection

An engine plug relates to sensor/actuator connections on the engine while the vehicle plug represents the interface to the vehicle specific components.

The functions of the engine management system are described in the respective systems.