The BMW 850i (E31) represents a significant achievement in automotive engineering, produced between July 1992 and August 1993. As BMW's premier luxury grand tourer, it was distinguished by its powerful V12 engine, advanced aerodynamic design, and sophisticated interior, setting a benchmark for high-performance coupes of its era. This model competed with other premium luxury vehicles, offering a unique blend of performance and comfort. Its engineering quality and reliability were hallmarks of the BMW brand, solidifying its reputation as the 'Ultimate Driving Machine'.
This manual provides comprehensive coverage of the electrical systems and troubleshooting procedures for the BMW 850i (E31) produced during the specified period. It details diagnostic flowcharts, component testing, wiring diagram interpretation, and specific troubleshooting for numerous systems, including power distribution, engine control, climate control, infotainment, and safety features like ABS and SRS. The purpose of this manual is to assist owners, mechanics, and technicians in effectively diagnosing and repairing electrical issues, ensuring the continued optimal performance and reliability of the vehicle.
Vehicle Produced 7/92 to 8/93
Index
Introduction
Symbols
Power Distribution Chart
Fuse chart
power Distribution
Fuse Details
Ground Distribution
Data Link
Engine Control System
Charging System
Start
Electronic transmission control
Supplement restraint system
Slip control ABS
Power Mirrors
Centrol locking module
Power Windows
Power Seats
Heated Seats
Power Sun Roof
Horn
Wiperwasher Module
Headlight Washer
Windshield washer jet heaters
Instrument cluster
Multi Function Clock
Light switch details
Headlights/Fog lights
Turnhazard lights
Park/Tail/Underhood lights
Licence plate/luggage compartment lights
Back up lights
Brake Lights
Interior Lights
Glove box light/cassete box ashtry lights/charging socket
Crash Control module
Park, ventilation with HKR
Rear Window defogger
Integrated climate regulation
Radio/Cd player
radio/hifi
Cellular Telephone
Cruise Control tempomat
Anti Theft system
on Board Computer
Component Location Chaart
Component Location Views
Splice Location views
Connector views
Vehicle Produced 7/92 to 8/93
Index
Introduction
Symbols
Power Distribution Chart
Fuse chart
power Distribution
Fuse Details
Ground Distribution
Data Link
Engine Control System
Charging System
Start
Electronic transmission control
Supplement restraint system
Slip control ABS
Power Mirrors
Centrol locking module
Power Windows
Power Seats
Heated Seats
Power Sun Roof
Horn
Wiperwasher Module
Headlight Washer
Windshield washer jet heaters
Instrument cluster
Multi Function Clock
Light switch details
Headlights/Fog lights
Turnhazard lights
Park/Tail/Underhood lights
Licence plate/luggage compartment lights
Back up lights
Brake Lights
Interior Lights
Glove box light/cassete box ashtry lights/charging socket
Crash Control module
Park, ventilation with HKR
Rear Window defogger
Integrated climate regulation
Radio/Cd player
radio/hifi
Cellular Telephone
Cruise Control tempomat
Anti Theft system
on Board Computer
Component Location Chaart
Component Location Views
Splice Location views
Connector views
