Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Alphanumerical Overview Of Abbreviated Designations
The WDS...DVD (Wiring Diagram System) alphanumerically lists the abbreviated designations from the overview "Component... and signal information".
Abbreviated designations are alphabetically sorted in the following groups:
- A Control units, modules
- B Sensors, electric converters
- D Diagnosis interfaces
- E Lights, electric heating equipment
- F Fuses
- G Power supply, gas generators
- H Acoustic and visual warning systems
- I Components from BMW suppliers
- K Relays
- L Coils
- M Electric motors, drives
- N Amplifiers, regulators, control units
- P Display instruments
- R Resistors, potentiometers
- S Switches, buttons
- T Ignition coils
- U Radio systems, suppressor filters
- V Semiconductors, diodes
- W Aerials, screening
- X Connectors
Connectors are not listed in this glossary.
- Y Electromechanical components
- Z Blocking circuits, suppressor filters
Subject to change.
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.