DME MS 41.1, MS 41.2 (88 Pin Control Module) TLEV

The introduction of the 328i in the 1996 model year also brought the first engine management system manufactured by Siemens to the US market; M541 .1. Compared with Bosch systems, MS 41 .x systems uses a few unique sensors and control methods. MS 41 .x was also the first system to meet TLEV compliancy.

QUICK VISUAL IDENTIFIERS:

88 Pin CM (M1.7):

Hot Film Air Mass Sensor:

Individual Ignition Coils (M44 & M62 Engines):

SYSTEM FEATURES:
- Power Supply Control (ECM Main Relay)
- OBD II compliant
- Full - Sequential Fuel Injection with individual fuel injector shut-off
- Direct Solid State Ignition liming Control with knock sensor monitoring
- Fuel Pump Relay Control
- Cold Start Enrichment control
- O2 Sensor Heating Control (PWM)
- Secondary Ignition Monitoring
- Output of Ti, and ID signals
- AC compressor relay control
- CAN bus communication
- VANOS control
- Vacuum evap leak detection system
- Substitute operating values employed if specific input signals become impaired.
- Fault monitoring with defect memory
- DIS/MoDiC Communication for Diagnosis and Programming

ADAPTIVE SYSTEM FEATURES:
- Adaptive ms injection time based on O2 Sensor Signal with memory
- Adaptive Idle Speed Control
- Adaptive Purge Valve Control