WDS Wiring Diagram System - E90

• Complete vehicle
• Component and signal information
• Service functions

• Components
• Signals
• Plug-in, comb-type and solder connectors

• A_Control units, modules
• B_Sensors, transducers
• E_Lamps, electrical heaters
• F_Fuses
• G_Power supply, triggering units
• H_Acoustic and optical signalling units
• I_Components of outside manufacturer
• K_Relays
• L_Coils
• M_Electric motors, drives
• N_Amplifiers, controllers, control units
• R_Resistors, potentiometers
• S_Switch, button
• T_Ignition coils
• U_Radio/interference-suppression equipment
• W_Aerials, shields
• Y_Electromechanical components
• Z_Interference-suppression coils

• Z1 Lockout circuit for rear window defogger (positive)
• Z2 Lockout circuit for rear window defogger (ground)

• Z1, I01134, X01218, I01135, Z2, X01219 (1 Series_E81/E82/ E87/E88)
• Z2, H70a, X18265, X30055, U410, X30056 (3 Series_E90/E91/E92/E93)
• X18265, E9, X01059, Z2 (Coupe)