BMW E39 Wiring Diagrams

Overview of Wiring Diagrams

This document provides detailed wiring diagrams for various systems within the BMW E39 model. Each diagram illustrates the electrical connections for specific components and functions.

• Diagram 1: Key to symbols and typical passenger compartment and luggage compartment fuseboxes, detailing fuse ratings and protected circuits.
• Diagram 2: Illustrates typical starting and charging systems, engine cooling fan, horn, and heater blower circuits, including wire color codes and component key.
• Diagram 3: Details typical headlight washer and heated washer jets, front wash/wipe systems, and cigar lighter & charging socket connections.
• Diagram 4: Covers typical rear wash/wipe systems, audio systems, and headlight washer & intensive washing systems.
• Diagram 5: Explains typical heated rear window, electric mirrors, and electric windows systems.
• Diagram 6: Focuses on the typical central locking system, including door lock motors, switches, and control modules.
• Diagram 7: Depicts typical stop lights, headlights, side, tail, and number plate lights, as well as reversing lights.
• Diagram 8: Illustrates typical direction indicators, hazard warning lights, and foglights.
• Diagram 9: Covers typical headlight levelling and interior lighting systems, including actuators, switches, and various interior lights.

Key to Symbols and Wire Colours

The diagrams utilize a standardized set of symbols to represent electrical components such as bulbs, switches, resistors, diodes, and connectors. A key is provided for wire colours, with each color (e.g., Blue, Violet, Brown, White, Yellow, Orange, Grey, Red, Green, Black) assigned to specific functions or circuits.

Fusebox Information

Detailed tables for the passenger compartment and luggage compartment fuseboxes are included. These tables list each fuse by its number (e.g., F1, F2), its rating in Amperes (A), and the specific circuit it protects. This information is crucial for troubleshooting and maintenance.

System-Specific Diagrams

Starting and Charging System

This section details the connections between the battery, ignition switch, starter motor, and alternator, including the warning light and control modules.

Engine Cooling Fan

Diagrams show the wiring for the engine cooling fan, including relays and the fan motor, controlled by the engine management system.

Horn and Heater Blower

The horn circuit, including the horn relay and switches, and the heater blower circuit, with its relay and motor, are clearly illustrated.

Wash/Wipe Systems

Wiring for headlight washers, heated washer jets, windscreen wipers, and rear wash/wipe systems are provided, showing connections to pumps, motors, switches, and control modules.

Lighting Systems

Comprehensive diagrams cover stop lights, headlights (high and low beam), side lights, tail lights, number plate lights, reversing lights, direction indicators, hazard warning lights, and foglights. These include connections to light switches, control modules, and individual light units.

Comfort and Convenience Systems

Wiring for central locking, electric mirrors, electric windows, heated rear window, and interior lighting (including vanity mirror lights and courtesy lights) is detailed, showing the integration of door modules, switches, motors, and control units.

Headlight Levelling

The system for adjusting headlight levelling is shown, including the adjuster, actuators, and associated wiring.