What is the construction and purpose of automotive electrical systems?

Automotive electrical systems are a set of components responsible for starting, charging, powering consumers, and controlling vehicle electronics. They include, among others, the battery, alternator, starter, fuses, relays, controllers, and wiring harnesses. These components are located in different parts of the car and work together through connectors and signal buses.

What are automotive electrical systems used for?

Automotive electrical systems are used to supply energy and transmit control signals to vehicle components. Thanks to them, it is possible to start the engine, charge the battery, and operate lights, windows, air conditioning, and safety systems. A fault in one circuit can affect not only comfort but also the correct operation of other modules.

What role does the wiring harness play in a car?

The wiring harness is an organized set of wires, covers, and connectors that connects individual consumers and controllers in the vehicle. It is used to transmit power, ground, and signals between modules. Its construction depends on the body version, equipment, and mounting location, so when replacing it, you must compare the wire routing, plug type, and number of pins.

How to choose an electrical part for a specific car?

The safest way is to compare the OEM number, manufacturer number, connector type, and mounting location. It is also worth considering the engine version, year of manufacture, body type, and equipment, as the same model may have different variants of the alternator, starter, or controller. In practice, verification by VIN is very helpful.

What symptoms indicate a problem with the electrical system?

Typical signals include difficulty starting, flashing warning lights, dimming lights, unstable charging, or the failure of selected consumers. In some cases, controller errors, air conditioning malfunctions, or periodic power outages also occur. Symptoms must always be linked to a specific circuit and cooperating component.

How to take care of automotive electrical systems in daily use?

The basis is regular inspection of the battery condition, terminals, ground wires, and charging. It is also good to check the tightness of housings, the condition of harness insulation, and the cleanliness of contacts exposed to moisture. A quick reaction to the first symptoms of voltage drops or electronic errors makes it easier to avoid a major failure.

Automotive electrical systems

At Global Parts, we offer a wide selection of original used car parts, including automotive electrical systems for many popular car brands such as BMW, Mini, Mercedes, Audi, Volkswagen, and others. Each of our car parts undergoes quality control to ensure you receive a top-quality product.

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BMW 3 Series E90 E91 Wiring Loom Front Door Left Passenger Side 6938221

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9260600

BMW F30 Interior Wiring Harness Cable Loom Plastic Plug Socket Connector 9260600

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8574100-3

BMW X3 F25 30dX N57N 258HP Engine Control ECU Kit DDE 8574100 Automatic

€218.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 3427749

BMW X3 E83 Cable Loom Door Passenger Side Wiring Harness 3412570

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9374507-1

BMW F23 REM Rear Electronic Module Fuse Box Control Unit V2 9374507

€28.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7796127

BMW X5 X6 Series E70 E71 Diesel Battery Cable Starter-Base B+ 7796127

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8367769

BMW X3 Series E83 Battery cable holder mounting parts B Base 8367769

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7838113

BMW F06 S65 Engine DME Basic Control Module Unit ECU PL6 JBBFE III 7838113

€51.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8506444-3

BMW E90 E91 LCI E92 330d Diesel N57 245HP ECU Engine Kit DDE 8506444 CAS3 + Key

€256.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8783805

BMW F23 LCI Boot Lid Tailgate Wiring Wire Harness Cable Loom 8784903 8783805

€42.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9426325

BMW F45 G20 G30 Mini F60 Battery Cell Module Circuit Control Unit 9426325

€56.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9276096

BMW 5 6 7 Series F01 F10 F13 Antenna Aeral Amplifier Diversity 868 MHZ 9276096

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9123043

BMW E81 E87 E91 LCI Steering Column Switch Cluster Wiper Stalk 9123043

€66.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8379567

BMW X5 Series E53 Loudspeaker Stereo Left Front Door N/S 8379567

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9367807-1

BMW X5 F15 Battery B+ Positive Terminal Point Engine Compartment 9367807

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7810860-1

BMW 3 Series E90 E91 E92 E93 LCI N47N Engine Alternator Starter Cable B 7810860

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9353217

BMW X6 F16 Antenna Amplifier Aerial Diversity Booster Control Unit 9353217

€47.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9499002

BMW F20 F21 F22 F30 F31 F32 F36 Fuse Box Body Control Unit Module REM V2 9499002

€70.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6920472

BMW 7 Series E65 E66 E67 Sensor Vehicle Centre AIRBAG

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 5A08530

Fuel Pump Control BMW G30 G12 Mini F60 Tank Function Module Unit ECU 5A08530

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9371386

BMW 4 Series F33 F83 M4 Convertible Top Module CTM Unit 9371386

€108.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8373700-2

BMW E60 E63 E87 E90 E91 4X Relay Make Contact White Green Set 8373700

€25.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9185542

BMW X5 E70 CCC Radio CD Player Navigation 9185542

€237.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9327318

BMW 1 2 3 4 5 F10 F20 F22 F30 F32 Navigation Sat Nav DAB Head Unit High 9327318

€237.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9337231

BMW F32 F33 F82 F83 Door Wiring Loom Harness Passenger's Side 9337231

€94.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9134631

Seat Module BMW E65 E66 Front Seat Control Unit ECU 9134631

€28.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6913363

BMW E65 Glovebox Glove Box Dash Storage Wiring Harness Cable 6913363

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8508208-1

BMW F10 F11 520d 530d N47N N57 E-Box Control Unit Box 8508208

€28.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 5A2D553

Audio Receiver BMW F40 G22 G30 G31 X3 G01 DAB ECE Control Unit Module 5A2D553

€73.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9226357-1

Loudspeaker BMW F20 F30 Top-HiFi Door Speaker Tweeter Set Harman Kardon 9226357

€42.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6941445

BMW E63 E64 Bluetooth Cable Hands Free Telephone Microphone Unit 6941445

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7640132-4

BMW F20 F30 Mini F56 Alternator Generator 150A Denso 7640131

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9166542

BMW E92 HDD Navigation Reader System Module Unit ZB CE3 Navi JAPAN 9166542

€47.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9140179

BMW F10 Radio Antenna Amplifier Suppression Filter 9140179

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6948692

BMW E60 E61 E63 Passenger Side Door Airbag Control Module 6948692

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8631668

BMW F20 F21 F30 LCI M140i 340i Wiring Harness Injection Valve Ignition 8631668

€80.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9178791

BMW F01 F02 F10 F11 Cable Wiring Set ARS Valve Block 9178791

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6864923

Air Module BMW F01 F02 LCI F07 GT F10 F11 F13 ECU Control Unit 6864923

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9116445

BMW Z4 E85 E86 Basic Body Control Unit Module GM5 Star12 LOW 9116445

€170.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9227217

BMW F12 Aerial Amplifier AMP Antenna Supression Filter Module 9227217

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9267467

BMW F13 Body Control Module Electronic Junction Box JBBFE 3 PL6 V3 9267467

€80.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9280912

F10 F11 F20 F21 F30 F31 Front Seat Control Module Unit 9280912

€66.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9297604

BMW F12 Wire Harness Cable Loom Wiring 9297604 9313752

€42.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9337881

BMW 1 3 4 F20 F21 F30 F31 F32 Power Distribution Fuse Box Rear 9337881

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8796289

BMW X3 G01 X4 G02 X5 G05 Battery Terminal Negative Cable Wire Wiring 8796289

€28.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7827899

BMW G20 G21 G60 G61 X2 U10 X1 U11 Charging Charge Cable Hybrid Plug In 7827899

€142.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9231399

Camera Module BMW F01 F07 F10 F11 F12 Based Assist Systems Control Unit 9231399

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6952987

BMW 5 6 Series E60 E61 E63 Driver Side Door Airbag Control Unit Module 6952987

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6960803

BMW E65 E66 E67 Control Unit Voice Input System Module 6960803

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6946106

BMW 7 E65 E66 Passenger Seat Airbag Sensor Control Unit Module 6946106 6970899

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6839355

BMW F44 Gran Coupe Antenna Amplifier Suppresion Filter 6839355

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7838929

BMW 3 5 6 Series E60 E63 E90 E92 Crossover Frequency Unit Module Door 7838929

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6855951

BMW F10 F11 F13 F06 VDC Module Rear Suspension Level Control Unit Module 6855951

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8580165

Mini F54 F55 F56 F57 F60 B47 Wiring Harness Engine Glow Plug Module 8580165

€28.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6956750

BMW E87 Control Unit PDC Parking Sensor Module Nautikblau Blue - A21 6956750

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7800130-1

BMW E46 ECU Engine Control Unit DDM EWS KIT 320Cd M47N 150 HP Diesel 7800130

€132.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6970904

BMW 7 Series E65 E66 E67 Sensor Rear Seat Airbag 65776970904 6970904

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6938966

BMW 5 Series e60 Suppression Filter Radio Areal Amp Supressor 6938966

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7377846-1

BMW F32 F33 F36 F80 M3 Front Headlight Headlamp Light Wiring Right O/S 7377846

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8366625

BMW 259 259R 259 R22 Connection Plug Relay Pink Tyco 8366625

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9123994

BMW Z4 Series E89 Cabrio Roadster Radio Antenna Mast Aerial FM Bumper 9123994

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7342174

BMW X1 E84 Z4 E89 LED Xenon Headlight ECU Module 7342174 L90028076

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7428361

BMW G11 G20 G21 G30 G31 Charge State Display Indicator Unit LED 7428361

€37.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 5A52C39

BMW X1 X2 Rear Door Wiring Loom Harness Cable Left Right N/O/S 5A52C39

€99.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9313614

BMW F30 F31 F80 M3 Driver's Side Door Wiring Loom Cable 9313614

€54.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 5A50601

BMW E65 E66 GPS DVD CD Computer Reader Head Unit 5A50601

€132.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 5A19AC1

BMW X3 G01 G20 G21 G30 G31 Air Module Control Unit 5A19AC1

€56.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6902265

BMW E65 E66 E67 Compact Base Support System Rear Black 6902265

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9131629

BMW X1 E84 Rear Tailgate Boot Lid Wiring Loom Harness Cable 9131629

€28.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6960220

Airbag Module BMW E65 E66 Airbag A-Pillar Sensor Right O/S Control Unit 6960220

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 5A130F9

BMW F40 F44 G20 Parking Control Module Unit USS ECU LOW 5A130F9

€37.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9269902

Radio Player BMW F10 F11 F20 F21 F25 F30 F31 Alpine CD Champ 2 Head Unit 9269902

€56.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8506373

BMW X3 Series E83 LCI 1.8d N47 Engine Control Unit ECU Module DDE 8506373 Manual

€227.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8515900

BMW X5 E70 LCI X6 E71 F01 F02 Starter Motor N57 Engine 8515900

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6812248

BMW X1 F48 Front Door Wiring Loom Harness Cable Driver Side 6812248

€42.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9252331

BMW F10 ECU Body Control Module Junction Box V2 PL6 JBBFE III 9252331

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6799576

BMW F10 F11 ICM Control Module Unit 6799576

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9302356

Battery Cable BMW F10 F11 X3 F25 Lead Negative IBS Wiring 9302356

€28.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7361970

BMW F10 F10 LCI Trunk Function Module Tailgate Boot Control Unit ECU 7361970

€56.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9189905

BMW X5 E70 X6 E71 Safety Control Unit Air Module Bag ECU Bosch 9189905

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8367253

BMW E38 Fuse Box Battery Power Junction Control Unit Module 8367252 8367253

€28.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9267456

Control Unit BMW F10 F11 Body Module ECU JBBFE IIIR V2 PL6 ECU 9267456

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8380407-1

BMW X5 E53 Power Distribution Fusebox Cover Fuse Box 8380407

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9187221

BMW E87 LCI Alpine Navi Japan Navigation HDD Navigation System 9187221

€170.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9291731

BMW F10 Seat Wiring Cable Front Right O/S Electrical Loom Harness 9291731

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9223733

BMW F01 F02 F07 F10 F11 CAS4 Control Unit Key Reading Module 9223733

€56.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8618444

BMW F30 LCI 330e B48X Cell Module Connector 8618444 61278618444

€28.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6812240

BMW F45 F46 Door Card Wiring Harness Adapter Cable Front Right O/S 6812240

€28.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6809374

BMW F01 F07 F10 F11 F12 F25 CAS4 Module Control Unit Key Reading 6809374

€42.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6929715

BMW 1 Series E81 E87 E87N Positive Battery Lead Cable 61126929715 6929715

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6905950

BMW X5 Series E53 Spoiler Dualband Antenna Amplifier Aerial 6905950

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9177981

BMW E90 ECU Body Control Module H1 PL2 JBBFE2 9177981

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9371790

BMW 1 Series F20 Telematics Control Unit Module Bluetooth 9371790

€56.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7848639

BMW F06 LCI F07 LCI F10 F11 LCI Steering Wheel Lane Change Control Unit 7848639

€151.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9189906

BMW E88 E93 LCI Air Module Control Unit ECU 9189906

€32.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8648843

BMW F45 Mini F60 B38X High Voltage Accumulator Negative Ground Cable 8648843

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8373700-3

BMW E60 E63 E87 E90 E91 5X Relay Make Contact White Green Set 8373700

€28.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9207360

BMW E60 E87 LCI E90 Hands-free Bluetooth High Basis MULF2 9207360

€66.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7599881-2

BMW E87 LCI E90 118i 318i N43 143HP ECU KIT DME 7599881 CAS3 + Key Automatic

€227.95

Free delivery: Aug 5 – 10

If paid before 14:00

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