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 E46 M3 S54 Engine Ignition Coil Pack Wiring Loom Harness 7831537

€284.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9389330

BMW F46 Gran Tourer Door Wiring Loom Harness Rear Left Right N/O/S 9389330

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9284421

BMW F10 F11 Gateway Module ECU Control Unit LEAR ZGW-02 Mid 9284421

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9363777

BMW F45 Actve Tourer 2nd Row Seats Wiring Loom Harness Cable 9363777

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9268706

BMW F01 F02 F04 F10 Rear Compartment Monitor Left Right N/O/S 9,2" Black 9268706

€427.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5A5E8B3

BMW F70 Negative Battery Mass Cable Terminal Wire Harness Wiring Loom 5A5E8B3

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5B4A355

BMW X1 U11 X2 U10 Front Passenger Side Door Control Unit Module 5B4A355

€104.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9798377-1

BMW F45 LCI 225xe B38X B38A15A 224HP Engine ECU DME Kit 9798377 BDC + Key

€379.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9118468

BMW X5 X6 Series E70 E71 Seat Backrest Adjustment Adapter Lead Cable 9118468

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6951674-LMB

BMW E81 E87 E90 PDC Parking Sensor Ultrasonic Le Mans Blau Metallic - 381

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9348935

BMW X1 F45 F48 Mini F55 F56 F60 Air Module Control Unit Module ECU 9348935

€94.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 1742690-4

BMW E61 E60 E63 E87 E90 Relay Changer Make Contact Salmon Red 1742690

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9151348

BMW F07 HV Battery Positive Terminal Lead Clamp Wire Harness Cable Loom 9151348

€37.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8370933

BMW 3 5 6 Series E60 E61 E63 E90 Support Bracket Navigation Computer 8370933

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9208452

Wiring BMW F07 Front Bumper PDC Wiring Park Assist Sensor Harness 9208452

€70.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9866980

BMW F20 Body Control Unit Module REM Fuse Box 9866980

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7831186

BMW E46 M3 Starter Motor Positive Battery Cable Lead Wiring Harness 7831186

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7391043

BMW F10 X1 F48 Mini F54 Rear Tailgate Smart Opener Bottom Wire Sensor 7391043

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9255135-LMB

BMW E81 E87 E90 E91 PDC Parking Sensor Front Rear Le Mans Blau Metallic - 381

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5A2D542

BMW F40 Body Control Module Domain Controller Unit BDC ECU 5A2D542

€94.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8573779-1

BMW F30 330dX 258HP N57N Control Unit Module ECU DDE 8573779 Key FEM Automatic

€308.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7273667

BMW F30 F31 F32 Rear Tailgate Smart Opener Lower Antenna 7273667

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8809737

PDC Wiring BMW X4M F98 G02 Rear Bumper Parking Assistance Sensor Harness 8809737

€89.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9436281

BMW G20 G21 Front Door Wiring Loom Harness Cable Driver Side 9436281

€42.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9146329-1

BMW X5 E60 E61 E65 E70 Front Left N/S Seat Angle Adjustment Drive 9146329

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8603576

BMW E84 sDRIVE20i N20 N20B20A Engine Control Unit ECU Automatic 8603576

€237.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6927311-1

BMW E60 E61 Front Seat Control Unit Module Controller ECU 6927311

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5B50DE2

BMW U06 Active Tourer Rain Light Solar Condensation Sensor 5B50DE2

€61.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7273666

BMW F30 F31 F32 Rear Tailgate Smart Opener Upper Antenna 7273666

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9340996

BMW F87 Door Wire Harness Cable Loom Front Passenger's Side 9340996

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5A08539

BMW G20 G21 330e Hybrid Fuel Pump Control Module ECU 5A08539

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6958449

BMW 7 Series E65 E66 E67 Control Unit Door Rear Driver Side 61356958449 6958449

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6923502

Mini R50 One D Diesel W17 Cable Starter Base B- Wire 6923502

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9322685

BMW F20 F21 F22 Stereo Audio Sound Amplifier Booster Module Unit 9322685

€156.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9339275

BMW F06 F07 F10 F11 F12 F13 F25 F26 CAS4 Control Module Unit ECU 9339275

€51.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8681185

BMW F40 F44 F46 X1 F48 Mini F54 F56 F57 F60 Engine Wiring Loom Harness 8681185

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5B913B8

BMW F20 F21 G30 G31 G01 Diesel Engine Starter Motor 5B913B8

€118.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9248214

BMW F01 F02 F03 F04 Front Bumper PDC Wiring Loom Harness Electric Wire 9248214

€37.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9304007

BMW G30 Seat Occupancy Sensor Mat Passenger Side Control Unit Module 9304007

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6858700

BMW F20 F21 F30 F31 F32 ECU ICM Control Unit Air Module 6858700

€70.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9289374-1

BMW X5 F15 X6 F16 Front Battery Fuse Box Positive Distribution Terminal 9289374

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8580053

Starter Cable BMW G30 G31 G32 Alternator Wiring Starter-Base B+ 8595355

€37.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9244134

BMW 1 3 X1 Series E81 E87 E90 E91 E92 Ultra Sonic Module Alarm System 9244134

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7533282

BMW X3 Z4 E83 E85 E86 Fuse Box Cover Power Distribution Engine Bay 7533282

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6957114

BMW 3 Series E92 Front Right O/S Driver Side Door Wire Wiring Loom 6957111

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6905639

BMW E65 E66 Japan Mobile Phone Buffer Module ECU J-buf 6905639

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9281852

BMW F34 GT LED Module B-Pillar Various Lamps Right O/S Side 9281852

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6778809

Mini Cooper One R55 R56 R57 Xenon Headlight Level Sensor 6778809

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6963025

BMW E64 Air Module Control Unit Centre Sensor ECU 6963025

€99.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9354756

Gateway Module BMW F11 Touring Central Gateway Body Control Module ZGW 9354756

€61.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9462542

BMW F20 F21 F30 F31 Mini F56 Air Conditioning Module A/C Control Unit 9462542

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7626546

BMW F20 F21 F22 F30 F31 LCI Petol Starter Motor Engine 7626546

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9878329

BMW U06 X1 U11 Front Subwoofer Speaker Bass Low Tone Left N/S 9878329

€56.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9240647

BMW F02 Television Tuner TV Receiver Control Unit Module 9240647

€142.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6994420

BMW G20 G21 330e Hybrid Rear Power Distribution Fuse Box 6994420

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9294912

BMW F10 F11 X5 F15 X6 F16 Rear Seat Compartment Screen Display SET 9294912

€569.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7591529

BMW F12 F13 F20 F21 Alternator Generator 14V 210A N55 Petrol Engine 7591529

€80.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7838041

BMW M3 E93 Engine Throttle Body Cable Wiring Loom Plug 7838041

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6797439

BMW F07 GT ICM Management Control Unit Module DSC Brakes 6797439

€66.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8579482

BMW F20 F21 116d ed Diesel N47N 116HP Engine Control ECU DDE 8579482 Manual

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6977724

BMW 3 Series E90 Xenon Footwell Light Module Control Unit ECU PL2 FRMFA 6977724

€51.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8519009

BMW X1 E84 20d 20dX Diesel N47N Engine Control Unit ECU DDE 8519009 Manual

€75.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7618644

BMW Z4 Series E89 Roadster Petrol N20 Cable Alternator-Starter-Base B 7618644

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8581815

BMW F10 F11 LCI Engine Wiring Harness Gearbox Module Loom Electric Wire 8581815

€208.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8736968

BMW F46 Module BCM Body Control Unit Module ECU 8736968

€47.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9359013

Control Unit BMW F01 F02 F07 F10 F11 CAS4 Key Reading Module 9359013

€75.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8716522

BMW G20 G21 G26 Front Seat Wiring Loom Harness Cable Manual Right O/S 8716522

€42.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6832270

BMW F10 F12 F13 F20 F22 F30 F31 Navigation Radio Sat Nav Head Unit High 6832270

€113.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7278047-4

BMW X5 E70 Headlamp Headlight Light Lamp Wiring Cable Front Left N/S 7278047

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9233089

BMW F01 F02 Front Bumper Parking Sensor Wiring Loom Harness Wire 9233089

€85.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8570238

BMW E87 E90 F20 F30 Engine Starter Motor Actuator N47 N47N Diesel 8570238

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8379941-1

BMW X5 Series E53 Interior Roof Alarm Sensor Ultra Sonic Module 8379941

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7395738

BMW F33 F83 Battery Holder Tray Bracket Carrier 7395738

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8577625

BMW F20 F21 116d ed N47N Engine Control Unit ECU DDE 8577625 Manual Transmission

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6915576

BMW Mini Cooper R50 R53 Cable Door Right Wiring Harness Loom 6915575 6944249

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9340971

BMW F21 F22 Cable Harness Driver's Side Door Loom Electrical Wiring 9340971

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9381105

BMW F20 Fuse Box Control Unit SAM Module Relay 9381105

€85.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8617549-2

BMW F12 Engine Control Unit ECU 559HP 4.4 Petrol S63B44B M6 S63N 8617549

€664.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9383697

BMW F07 LCI F20 F21 F30 Footwell Light Control Module FRM III ECU Unit 9383697

€51.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 3419515

BMW E83 LCI Valvetronic Starter Cable Wire Loom 3419515

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 2622562

BMW G20 G21 G23 G26 G42 G80 Subwoofer Bass Speaker Under Seat Right O/S 2622562

€85.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8617549-1

BMW F12 Engine Control Unit ECU 559HP 4.4 Petrol S63B44B M6 S63N 8617549

€664.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9270590-1

BMW F20 F21 F22 Windscreen Rain Sensor Solar Fogging 9270590

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5A90877

BMW F74 Gran Coupé Battery Plus Positive Cable Wiring Harness 5A90877

€61.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5A06B93

BMW F74 Gran Coupe A/C Air Conditioning Wiring Loom Harness Adapter 5A06B93

€80.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9186664

BMW 3 Series E92 Front Right O/S Driver Side Door Wire Wiring Loom 9186664

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8707750

BMW F20 F21 F22 F23 F87 M2 Body Domain Controller BDC Module FEM 8707750

€279.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6957528

BMW 5 6 E60 E63 LCI Body Control Module ECU Control Unit KBM Basis 6957528

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8584279-1

BMW F22 F30 F31 218d 318d Diesel N47N 143HP Engine ECU Kit DDE 8584279 Key FEM

€237.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6962581

BMW E87 Cables Set Wiring PDC Parking Sensor Front Bumper 6962581

€47.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7952991

BMW U06 Active Tourer Power Management Control Unit Power Supply Module 7952991

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6886186

BMW F20 F21 F22 F30 F31 Hydro Unit DSC ICM Fastening Control Module ECU 6886186

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5B88F19

BMW F74 Gran Coupé B38N Petrol Power Control Unit Module PCU 5B88F19

€189.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8510591-7

BMW X1 E84 2.0d N47 177HP sDrive Engine Control Unit ECU DDE 8510591 Manual

€189.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6942100

BMW E60 Air Module Control Unit Gateway Sensor B Pillar Right O/S 6942100

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8801718

BMW G31 Touring Switchboard Relay Fuse Box Module Control Unit 8801718

€218.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9353066

BMW F20 F21 F30 F31 Relay Cover Electric Fan Relay Cap 9353066

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5A27C22

BMW X1 U11 Potential Equalizator Wiring Harness Cable 5A27C22

€42.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9321016

On-Board Screen BMW F10 F11 LCI Central Information Display 10,25" 9321016

€237.95

Free delivery: Nov 12 – 13

If paid before 14:00

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