Chapter 25 of 25·Part XII of XII
Master Engineering Reference Glossary & BMW Engineering Acronym Dictionary
| Acronym | German Factory Designation | English Technical Translation & Powertrain Function |
|---|---|---|
| DME | Digitale Motor Elektronik | Digital Motor Electronics (Gasoline Engine Control Module) |
| DDE | Digitale Diesel Elektronik | Digital Diesel Electronics (Turbodiesel Engine Control Module) |
| VANOS | Variable Nockenwellen-Steuerung | Variable Camshaft Timing (Phase Angle Adjustment) |
| DISA | Differenzierte Sauganlage | Differentiated (Dual-Stage Variable Resonance) Intake Manifold |
| EDK | Elektronische Drosselklappe | Electronic Drive-by-Wire Throttle Body (Drive-by-Wire) |
| MDK | Motor-Drosselklappe | Motorized Throttle Body with Mechanical Cable Backup (MS42) |
| ZWD | Zweiwicklungs-Drehsteller | Two-Winding Rotary Idle Air Control Actuator (ICV) |
| PWG | Pedalwertgeber | Accelerator Pedal Value Transmitter (Driver Torque Sensor) |
| HFM | Heißfilm-Luftmassenmesser | Hot-Film Mass Airflow Sensor (Bosch HFM5 / HFM6) |
| EWS | Elektronische Wegfahrsperre | Electronic Drive-Away Protection (Rolling-Code Anti-Theft) |
| DSC | Dynamische Stabilitäts Control | Dynamic Stability Control (Traction & Yaw Rate Intervention) |
| ADB-X | Automatische Differenzial Bremse | Automatic Differential Brake (AWD Wheel Slip Braking) |
| DMTL | Diagnosemodul Tankleckage | Diagnostic Module Tank Leakage (Evaporative Leak Detection) |
| PT-CAN | Powertrain Controller Area Network | High-Speed Drivetrain Bus (500 kbps) |
| K-CAN | Karosserie Controller Area Network | Body Electronics Bus (100 kbps) |
| EGS | Elektronische Getriebesteuerung | Electronic Automatic Transmission Mechatronic Control Unit |
| COP | Catalyst Overheating Prevention | Thermal Protection Enrichment & Spark Retard Safety Model |
| HDP | Hochdruckpumpe | High-Pressure Mechanical Fuel Pump (Direct Injection, 200… 350 bar) |
| VNT | Variable Düsenturbine | Variable Nozzle Turbine (Variable Geometry Turbocharger) |
| DPF | Dieselpartikelfilter | Diesel Particulate Filter (Exhaust Wall-Flow Soot Trap) |
| CCP | CAN Calibration Protocol | ASAM Standard Measurement & Calibration Protocol (v2.1) |
| UDS | Unified Diagnostic Services | Standardized Diagnostics over CAN Bus (ISO 14229) |
| DoIP | Diagnostic over Internet Protocol | High-Speed Diagnostic Protocol over 100 Mbps Ethernet (ISO 13400) |
| BLS | Bremslichtschalter | Primary Brake Light Switch (+12V Active) |
| BLTS | Bremslichttestschalter | Secondary Redundant Brake Test Switch (Ground Active) |
| LLR | Leerlaufregelung | Closed-Loop Engine Idle Speed Regulation Routine |
| EWGA | Elektronischer Wastegate-Aktor | Linear Electric Wastegate Actuator (N55 / S55 / B58) |
| HSM | Hardware Security Module | On-Chip Cryptographic Silicon Security Core (TriCore AURIX) |
| TPROT | Tuning Protection | Bosch Cryptographic Firmware Protection Level 8–10 |
| DRV | Druckregelventil | High-Pressure Common-Rail Fuel Pressure Regulator Valve |
| ZME | Zumesseinheit | High-Pressure Fuel Pump Low-Pressure Suction Metering Unit |
| IVVT | Individuelle Variable Ventil-Steuerung | Continuous Independent Intake/Exhaust Variable Valve Timing |
| DKP | Drosselklappenpotentiometer | Throttle Position Potentiometer (Wiper Track) |
| NTC | Negativer Temperaturkoeffizient | Negative Temperature Coefficient Thermistor (Coolant/Air) |