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

• K2 Horn relay
• K6 Relay, headlight washer
• K13 Rear window defogger relay
• K19 Relay, A/C compressor
• K36 Wiper relay 1
• K37 Wiper relay 2
• K91 Rear wiper relay
• K96 Fuel pump relay
• K2003a DDE main relay
• K6300 DME relay
• K6304 Secondary air pump relay
• K6316 Relay, variable valve timing
• K6319 VVT relay
• K6326 Power-saving relay, terminal 15
• K6327 Relay, fuel injectors
• K6539 Engine breather heating relay
• K9137 Cutoff relay, electric fan
• K18363a Relay 1 for hardtop drive unit
• K18364a Relay 2 for hardtop drive unit

• A8681, X8681, F06, K6327, X6327, K6300, X6300 (3 Series_E90/E91/E92/E93 with ( N52 engine or N51 engine ))
• K6300, X6300, A8681, X8681, K6327, X6327 (1 Series_E81/E82/ E87/E88 with N52 engine)