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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Distribution Fuse Box BMW F40 F48 Mini F56 Rear Electric Power Fuse Box 9360501

£28.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7465569

BMW G30 Fuel Tank Housing Cover Seal Gasket Case Cover 7465569

£23.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6831329

Amplifier Bracket BMW X1 F48 F46 Control Unit Module Holder Mount 6831329

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9231518

BMW F31 Antenna Aerial Diversity Trap Circuit 9231518

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. RHD-9208117

BMW F07 GT Head Up Display Dashboard Car System Screen 9208117

£137.95

Free delivery: Jul 14

If paid before 14:00

Part no. 5A92530

BMW G20 LCI Roof Aerial Antenna Control Unit Module 5A92530

£104.95

Free delivery: Jul 15 – 22

If paid before 14:00

Part no. 8596362-6

BMW F20 120d F30 320d F36 420d LCI B47 190HP Engine ECU Kit 8596362 FEM + 2 Keys

£303.95

Free delivery: Jul 14

If paid before 14:00

Part no. 5B52662

BMW F70 U06 Front Camera KaFAS Control Unit Module Personal Copilot 5B52662

£474.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8606306

BMW F10 F11 F30 184 HP Petrol N20 Engine Control Unit ECU DME 8606306 Manual

£284.95

Free delivery: Jul 15 – 22

If paid before 14:00

Part no. XRC8259

BMW X1 E84 10.25" CIC Screen Display Multimedia Head Unit XRC8259

£189.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9387149

BMW 3 F30 LCI 330e Hybrid Positive Battery Cable Wire Lead Underfloor 9387149

£237.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9287756

Loudspeaker Centre BMW F25 F15 Central Woofer Audio Speaker 9287756

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7624619

BMW F10 Cable Generator Alternator Starter Base B+ 7624619

£23.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9894913-3

BMW F20 F21 F30 F31 LCI F22 B58 340HP Engine Control ECU DME 9894913 Automatic

£189.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6878200

BMW F10 F20 F30 Rear M VDC Sport Suspension Control Unit Module 6878200

£51.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9285504-1

BMW X5 F15 X6 F16 B + Battery Power Distributor 9285504

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8638198-10

BMW F20 F21 118i N13 170HP Engine Control ECU DME Kit 8638198 FEM Key Lock

£398.95

Free delivery: Jul 15 – 22

If paid before 14:00

Part no. 8582280-1

BMW F20 F21 116d N47N 116HP Engine Control ECU Kit DDE 8582280 Manual

£256.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9331166

BMW G11 Instrument Carrier Rear Control Unit Module Box Cover Bracket 9331166

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9247472-3

BMW E87 ECU Body Control Module Junction Box PL2RR H2 9247472

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6989069-BS

BMW E53 E39 E60 E61 E83 PDC Ultrasonic Parking Sensor 4687921 Black Sapphire 475

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7634063

Gearbox Wiring BMW F10 F11 520i 528i N20 Automatic Engine Loom Harness 7634063

£132.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9343286

Mini F56 A/C Module Climate Control Unit Air Conditioning 9343286

£13.95

Free delivery: Jul 14

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: Jul 14

If paid before 14:00

Part no. 8573574-1

BMW F06 F12 F13 640d N57 313HP Engine ECU DDE Kit CAS4 + Key 8573574 Automatic

£237.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9316568

BMW X5 F15 X6 F16 Front Fuse Box Relay Module Control Unit 9316568

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 5A7D370

BMW G30 G08 Harman Head Unit Radio Sat Nav Navi Control Unit ECU Module 5A7D370

£541.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9111718

BMW 1 3 Series E81 E87 E90 Hands-Free Electronics Charging Module MULF 9111718

£85.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9798377-1

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

£332.95

Free delivery: Jul 15 – 22

If paid before 14:00

Part no. 8510221-15

BMW E90 E91 LCI E92 330d Diesel N57 245HP ECU Engine Kit DDE 8510221 CAS3 + Key

£94.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9118032

BMW Z4 E89 Roadster HiFi Speaker Sound System Amplifier AMP Unit 9118032

£47.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6809310

BMW F20 LCI F21 LCI F83 Telematics Communication Module Ecu Control Unit 6809310

£161.95

Free delivery: Jul 15 – 22

If paid before 14:00

Part no. 8574024

Engine Wiring BMW F30 F31 335dX N57Z Automatic Gearbox Cable Harness 8574024

£32.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9436289

BMW G20 G21 Rear Door Wiring Loom Cable Control Unit Left Right N/O/S 8718245

£28.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8585642

BMW F20 F21 F30 F31 N47N Wiring Loom Harness Engine Gearbox Module 8585642

£47.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7350698-2

BMW X1 F48 Rear Light Lamp Boot Tailgate Left N/S Loom Wiring Harness 7350698

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6942430

BMW Z4 E85 E86 Tilt Sirene Speaker Alarm With Inclination Indicator 6942430

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8689723-3

BMW F20 M140i B58 340 HP ECU DDE Key Kit Petrol 8689723 6843898 Automatic

£474.95

Free delivery: Jul 15 – 22

If paid before 14:00

Part no. 8510592-2

BMW E81 E87 E90 LCI 118d 318d N47 143HP ECU Control Unit DDE 8510592 Automatic

£47.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9193753-1

BMW E81 E87 LCI Board Monitor Central Information Display 6,5" 9193753

£189.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7616120

Alternator BMW F20 F21 F30 F31 F36 Petrol N55 Generator 210A 7616120

£56.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8380698

BMW E38 E53 E86 F15 Mini R50 Diagnoctic Socket Connector Plug Housing 8380698

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6826897

BMW F06 F12 F25 Wireless Charger Centre Console Phone Charging Module 6826897

£56.95

Free delivery: Jul 14

If paid before 14:00

Part no. 5A90876-2

BMW U06 Positive Power Cable Harness Wiring Underfloor Lead 5A90876

£28.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8582281-1

BMW F22 Coupe 218d Diesel N47N 143HP Engine Control ECU Kit DDE 8582281 Manual

£303.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8519668-2

BMW E90 E91 LCI 320d N47N 163HP Engine Control Unit ECU DDE 8519668 Automatic

£47.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7552393-2

BMW E60 E90 E91 N52 325i 525i Engine ECU Kit DME CAS2 + Key 7552393 Manual

£351.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8704670

BMW F40 F44 F70 F74 F78 G30 G31 G32 G70 Relay Unit 8704670

£28.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7266666

BMW F11 Touring Control Unit Rear Tailgate Boot Lid Function Module 7266666

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9257490

BMW F10 F11 Radio Player Alpine CD Champ 2 Audio Head Unit 9257490

£56.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8676533-2

BMW F30 F31 F33 F34 B48 184HP Engine Control Unit ECU DME Kit 8676533 Automatic

£408.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9339958

BMW i3 I01 Electric High Voltage EDH Wiring Cable Wire Harness 9339958

£23.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8574091-4

BMW F25 20dX N47N 184HP ECU Kit Control Unit DDE 8574091 CAS4 Key Manual

£237.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7848603-1

Alternator BMW F87 M2 F80 M3 F82 F83 M4 S55 Engine Generator 250A Denso 7848603

£94.95

Free delivery: Jul 15 – 22

If paid before 14:00

Part no. 8686143

BMW F45 225xe 1.5 B38X 224HP Engine Control Unit ECU DME 8489647 Automatic

£379.95

Free delivery: Jul 14

If paid before 14:00

Part no. RHD-5A847B5

BMW U06 Active Tourer Cable Set EPS Wiring Harness 5A847B5

£28.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6960220

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

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9385026-1

BMW F01 F07 LCI F10 F11 F25 Air Module Control Unit ECU 9385026

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9395171

BMW F20 F21 F22 F30 F31 F32 F36 FEM Control Module Unit 9395171

£80.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9294912

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

£522.95

Free delivery: Jul 15 – 22

If paid before 14:00

Part no. rhd-8511876

Engine Wiring BMW E70 LCI E71 30dX N57 Module Loom Harness Cables 8511876

£151.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8485064

BMW G20 LCI Starter Motor Positive Battery Cable B48B20A Petrol 8485064G20

£23.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7810950-8

BMW E60 E61 LCI 530d M57N2 232HP Engine Control ECU Kit DDE 7810950 Automatic

£237.95

Free delivery: Jul 15 – 22

If paid before 14:00

Part no. 9367814

BMW 2 X1 X2 F39 F45 F48 Map Card Fuse Box Grouping Diagram 9367814

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7634061

BMW F10 Engine Transmission Module Cable Loom Wiring Harness 7634061

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9270356-2

Fuse Carrier BMW F40 Mini F55 F56 F57 F60 Distribution Box 9270356

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 3414469

BMW X3 E83 Fuse Grouping Front Stick-on Label Diagram 9267980

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9228272

Telematics Module BMW F01 F07 F10 F12 Bluetooth Control Unit ECU 9228272

£47.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7597892

BMW X5 E70 X6 E71 Transfer Box Control Unit Module ECU 7597892

£132.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8512292

BMW E90 E91 LCI N47N 318d 143HP Engine Control Unit ECU DDE 8510832 Manual

£47.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7607454

Battery Insert BMW F13 F12 F06 Battery Crashpad Foam Insulator 7607454

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9248565

Seat Module BMW F10 F11 Front Left N/S Control Unit SM MF/M - HL 9248565

£47.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8387135

BMW 5 7 Series E60 E61 E65 Fuse Box Power Distributor Cap Trim Cover 8387135

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8589145-19

BMW F36 190 HP 420d B47 Engine Control Unit ECU KIT Diesel 8589145 Automatic

£474.95

Free delivery: Jul 15 – 22

If paid before 14:00

Part no. 7848839

BMW F80 F82 F91 F92 Trunk Boot Lid Automatic Smart Openning Sensor 7848839

£23.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8582280-10

BMW F20 F30 F31 118d 318d N47N 143HP Engine Unit ECU DDE Kit 8582280 Manual

£142.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8519009-3

BMW X1 E84 20dX Diesel N47N 184HP Engine Control Unit ECU DDE 8519009 Automatic

£75.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9252371

BMW F45 Door Wiring Front Right Door Loom Cable Wiring Harness 9252371

£23.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9184528

BMW X5 E70 Cable Glove Compartment Wiring Loom Harness 9184528

£28.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9365819

BMW X5 F15 Wiring Rear Right O/S Door Harness Loom 9365819

£23.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9259581

BMW X3 F25 Map Card Fuse Box Grouping Diagram 9259581

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6867169

Air Module BMW F20 F23 F30 F32 F36 Domain Control Module ICM Unit 6867169

£23.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9341000

BMW F21 LCI Door Wiring Cables Harness Loom Front 9341000

£23.95

Free delivery: Jul 14

If paid before 14:00

Part no. 5A21BF0

BMW F20 F21 F30 LCI F36 B48 184HP Engine Control ECU DME 5A21BF0 Automatic

£189.95

Free delivery: Jul 15 – 22

If paid before 14:00

Part no. 7599854

BMW F10 F11 523i 528i 530i N53 Engine Wiring Harness Cable Loom 7599854

£94.95

Free delivery: Jul 15 – 22

If paid before 14:00

Part no. 969713

BMW F01 F07 Boot Trunk Lid Tailgate Lock Wiring Harness Loom Cable 969713

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8691844

Mini F55 F57 F60 BMW F48 F49 Engine Control Module Unit ECU 8691844

£332.95

Free delivery: Jul 14

If paid before 14:00

Part no. A2468203615

Mercedes X156 Heater Wiring Cable Harness Loom Air Conditioner A2468203615

£23.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9304350

BMW F45 F46 F48 Mini F54 F56 Battery Tray Holder Bracket Support 9304350

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8573260-9

BMW F20 F21 116d ed Diesel N47N 116HP ECU Kit DDE 8573260 + Key + FEM Manual

£123.95

Free delivery: Jul 14

If paid before 14:00

Part no. 5A045A6

BMW F74 F78 Gran Coupé M235iX X1 U11 X2 U10 Exhaust Flap Actuator Drive 5A045A6

£85.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7367722

Power Trunk BMW F80 F82 F01 Smart Opener Control Unit 7367722

£51.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9189905

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

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8634167

Alternator BMW G11 G12 LCI G20 G21 G30 G31 Alternator 250A Denso 8634167

£123.95

Free delivery: Jul 15 – 22

If paid before 14:00

Part no. 8578946-2

BMW F20 F30 F32 120d 320d 420d N47N 163HP Engine Module ECU DDE 8578946 Manual

£66.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9281518-1

BMW F20 F30 Head Unit Radio Professional CD Bluetooth Autoradio Unit 9281518

£142.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8792247

BMW F20 F30 F32 Navigation Head Unit Harman Sat Nav Unit 8792247

£265.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9322532

Gateway Module BMW F01 F10 F11 F12 Central Body Control 9244262

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9176823

BMW X5 E70 Footwell Light Control Module Unit LEAR PL4 FRM II 9176823

£156.95

Free delivery: Jul 15 – 22

If paid before 14:00

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