This manual covers the BMW 840Ci, 850Ci, and 850CSi models produced between September 1994 and August 1996. These vehicles represent BMW's foray into the luxury grand tourer segment, characterized by sleek, aerodynamic designs featuring retractable headlights and powerful V8 and V12 engines. The 840Ci is equipped with a 4.0L M60B40 V8 engine, while the 850Ci features a 5.0L M70B50 V12, and the high-performance 850CSi boasts a 5.6L S70B56 V12. Known for their advanced engineering and comfortable long-distance capabilities, these E31 chassis cars were designed to compete with other luxury coupes of their era.
This specialized electrical troubleshooting manual provides comprehensive guidance for diagnosing and repairing the complex electrical systems found in the BMW E31 chassis. It details power and ground distribution, fuse and relay information, and offers in-depth troubleshooting procedures for various systems including engine control, charging, starting, transmission control, supplemental restraint systems, ABS, and numerous comfort and convenience features like power windows, seats, and climate control. The manual is intended for professional technicians and advanced enthusiasts seeking to maintain and repair these vehicles, offering detailed diagrams, component testing methods, and circuit tracing techniques to resolve electrical faults effectively.
Vehicle produced 9/94 - 8/96
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 9/94 - 8/96
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
