Wiring Diagram Cluster

2012 BMW 135i Coupe Alternator Wiring Diagram

Find charging-system schematics including alternator field/control wiring, battery feeds, and fuse/relay paths.

Matched Diagrams

48

Variant Used

135i Coupe (E82) L6-3.0L Turbo (N55)

Total Vehicle Diagrams

2792

From Diagram To Fix

Use this wiring page as the jump point, not the dead end

Open the exact diagram, then move directly into the vehicle hub, the repair most likely tied to this system, or the code cluster that usually shows up with it.

Keep context

Vehicle Repair Hub

Step out of raw diagrams and into the full 2012 BMW 135i Coupe hub with repairs, specs, codes, and other systems already tied to this car.

View vehicle repair hub β†’

OEM source

Factory Manual Evidence

When there is no clean repair shortcut for this system, drop into the OEM manual sections that usually carry the authoritative test path.

2012 BMW 135i Coupe Description and Operation β†’

Diagnostic signal

Codes Often Seen With This System

Use the code cluster when wiring faults overlap with check-engine or module-level diagnostics.

P0563: System Voltage High β†’

Top Alternator Diagram Paths

1.Cellular Phone β€” Electrical Diagrams > Power Supply, ULF Universal Charging and Hands-Free FacilityAccessories and Optional EquipmentOpen2.Cellular Phone β€” Electrical Diagrams > Universal Charging and Hands-Free FacilityAccessories and Optional EquipmentOpen3.Components > G_Power Supply > G12 Generator, Belt Tensioner, DriverGeneralOpen4.Components > G_Power Supply > G14b Generator, Side Airbag, DriverGeneralOpen5.Components > G_Power Supply > G15b Generator, Side Airbag, PassengerGeneralOpen6.Components > G_Power Supply > G17 Generator, Head Airbag, LeftGeneralOpen7.Components > G_Power Supply > G18 Generator, Head Airbag, RightGeneralOpen8.Components > G_Power Supply > G30a Generator, Knee Airbag, DriverGeneralOpen9.Components > G_Power Supply > G31a Generator, Knee Airbag, PassengerGeneralOpen10.Components > G_Power Supply > G32 Generator For Belt Force Limiter, Left FrontGeneralOpen11.Components > G_Power Supply > G33 Generator For Belt Force Limiter, Right FrontGeneralOpen12.Components > G_Power Supply > G5 Generators, Driver's AirbagGeneralOpen13.Components > G_Power Supply > G6 Generators, Passenger AirbagGeneralOpen14.Components > G_Power Supply > G6524 Alternator > G6524, X6524, X6509GeneralOpen15.Components > G_Power Supply > G6524 Alternator > G6524, X6524, Y2a, X8099, X65091GeneralOpen16.Components > G_Power Supply > G6524 Alternator > Y2381, X6538, G6524, X6524, X6509GeneralOpen17.Electrical Diagrams > Accessories and Optional Equipment > Cellular Phone > Power Supply, ULF Universal Charging and Hands-Free FacilityGeneralOpen18.Electrical Diagrams > Accessories and Optional Equipment > Cellular Phone > Universal Charging and Hands-Free FacilityGeneralOpen19.Power and Ground Distribution β€” Diagram Information and Instructions > Component ID (General List) > AStarting and ChargingOpen20.Power and Ground Distribution β€” Diagram Information and Instructions > Component ID (General List) > BStarting and ChargingOpen21.Power and Ground Distribution β€” Diagram Information and Instructions > Component ID (General List) > C-GStarting and ChargingOpen22.Power and Ground Distribution β€” Diagram Information and Instructions > Component ID (General List) > H-MStarting and ChargingOpen23.Power and Ground Distribution β€” Diagram Information and Instructions > Component ID (General List) > N-ZStarting and ChargingOpen24.Power and Ground Distribution β€” Diagram Information and Instructions > Signal Glossary > Signal Name For Positive/Ground ConnectionsStarting and ChargingOpen25.Power and Ground Distribution β€” Diagram Information and Instructions > Signal Glossary > Signal Names For LightsStarting and ChargingOpen26.Power and Ground Distribution β€” Diagram Information and Instructions > Signal Glossary > Signal Names For Positive/Ground ConnectionsStarting and ChargingOpen27.Power and Ground Distribution β€” Diagram Information and Instructions > Signal Glossary > Signal Names With AStarting and ChargingOpen28.Power and Ground Distribution β€” Diagram Information and Instructions > Signal Glossary > Signal Names With BStarting and ChargingOpen29.Power and Ground Distribution β€” Diagram Information and Instructions > Signal Glossary > Signal Names With CStarting and ChargingOpen30.Power and Ground Distribution β€” Diagram Information and Instructions > Signal Glossary > Signal Names With DStarting and ChargingOpen31.Power and Ground Distribution β€” Diagram Information and Instructions > Signal Glossary > Signal Names With EStarting and ChargingOpen32.Power and Ground Distribution β€” Diagram Information and Instructions > Signal Glossary > Signal Names With FStarting and ChargingOpen33.Power and Ground Distribution β€” Diagram Information and Instructions > Signal Glossary > Signal Names With GStarting and ChargingOpen34.Power and Ground Distribution β€” Diagram Information and Instructions > Signal Glossary > Signal Names With HStarting and ChargingOpen35.Power and Ground Distribution β€” Diagram Information and Instructions > Signal Glossary > Signal Names With IStarting and ChargingOpen36.Power and Ground Distribution β€” Diagram Information and Instructions > Signal Glossary > Signal Names With KStarting and ChargingOpen37.Power and Ground Distribution β€” Diagram Information and Instructions > Signal Glossary > Signal Names With LStarting and ChargingOpen38.Power and Ground Distribution β€” Diagram Information and Instructions > Signal Glossary > Signal Names With MStarting and ChargingOpen39.Power and Ground Distribution β€” Diagram Information and Instructions > Signal Glossary > Signal Names With NStarting and ChargingOpen40.Power and Ground Distribution β€” Diagram Information and Instructions > Signal Glossary > Signal Names With OStarting and ChargingOpen41.Power and Ground Distribution β€” Diagram Information and Instructions > Signal Glossary > Signal Names With PStarting and ChargingOpen42.Power and Ground Distribution β€” Diagram Information and Instructions > Signal Glossary > Signal Names With QStarting and ChargingOpen43.Power and Ground Distribution β€” Diagram Information and Instructions > Signal Glossary > Signal Names With RStarting and ChargingOpen44.Power and Ground Distribution β€” Diagram Information and Instructions > Signal Glossary > Signal Names With SStarting and ChargingOpen45.Power and Ground Distribution β€” Diagram Information and Instructions > Signal Glossary > Signal Names With TStarting and ChargingOpen46.Power and Ground Distribution β€” Diagram Information and Instructions > Signal Glossary > Signal Names With UStarting and ChargingOpen47.Power and Ground Distribution β€” Diagram Information and Instructions > Signal Glossary > Signal Names With VStarting and ChargingOpen48.Power and Ground Distribution β€” Diagram Information and Instructions > Signal Glossary > Signal Names With WStarting and ChargingOpen