BMW 1 Quiz

Electrical Circuit Diagrams

In this manual: Electrical Circuit Diagrams
Introduction — 10Owner's Manual — 29Routine Care and Maintenance — 30Engine — 18Cooling and Heating Systems — 13Fuel and Exhaust Systems — 29Engine Electrical Equipment — 20Manual Transmission — 4Automatic Transmission — 4Clutch and Drive Shafts — 12Brake System — 19Suspension and Steering — 22Body — 36Body Electrical Equipment — 34Electrical Circuit Diagrams — 30On-board diagnostic system — 5
~1min read

The original electrical circuit diagrams for the BMW 5 Series contain about 100 pages. Here are diagrams relating mainly to the 520i and 525tds models, and general diagrams applicable to all models. The new edition of the manual publishes new diagrams that owners of earlier-production vehicles may also use as a reference.

Wire color designations:
BL - blue
RT - red
BR - brown
SW - black
GE - yellow
VI - violet
GN - green
WS - white
GR - grey

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A quick BMW 1 quiz: every answer comes with an explanation and a link to the manual page.