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 X5 E70 3.0sd M57N2 286HP Engine ECU Kit DDE 7823800 CAS3 Key Automatic

£379.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6923209

BMW X5 E46 E53 Alarm System Inclination Indicator Module Unit 6923209

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 8509722-2

Control Unit Box BMW F20 F21 F22 F30 F31 Cover Panel Protection 8509722

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. rhd-9358961

Head Up Display BMW F30 F31 Hud Projector Dash Screen Control Module 9358961

£75.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9267466

BMW F10 Body Control Module Junction Box V2 PL2 JBBFE III Lear ECU 9267466

£28.95

Free delivery: Aug 28

If paid before 14:00

Part no. 5A07600

BMW F40 Heater Air Conditioning System Control Unit Module 5A075F7

£28.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9218331

BMW E93 Radio Head Unit Comand CD DVD Player Changer 9218331

£522.95

Free delivery: Sep 1 – 8

If paid before 14:00

Part no. 6789514

BMW X6 E71 ICM Integrated Chassis Management Control Unit Brakes 6789514

£47.95

Free delivery: Aug 28

If paid before 14:00

Part no. 8582279-2

BMW F20 F30 F32 120d 320d 420d N47N 184HP Engine ECU Kit DDE 8582279 Manual

£189.95

Free delivery: Aug 28

If paid before 14:00

Part no. 8512047-5

BMW E90 E91 LCI N47N 320d ed ECU KIT DDE 8512047 CAS 2 Keys Manual Transmission

£151.95

Free delivery: Sep 1 – 8

If paid before 14:00

Part no. 9118468

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

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 8599189

BMW G11 740d B57 xDrive 320HP Engine Control Module ECU DDE 8599189 Automatic

£189.95

Free delivery: Sep 1 – 8

If paid before 14:00

Part no. 7799470

Wiring Bracket BMW E60 E61 X3 E83 Diesel Engine Harness Cable Loom Mount 7799470

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9253482

BMW E84 ECU Body Control Module H2 PL2RR JBBFE IIIR Junction Box 9253482

£47.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9146651-1

BMW X5 X6 Series E70 E71 Board Monitor Sat Nav System Screen 8,8" 9146651

£89.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9231869

BMW F07 Front Bumper Parink Sensor PDC Unit Harness Wiring Loom 9231869

£37.95

Free delivery: Aug 28

If paid before 14:00

Part no. 8727997

BMW F44 Gran Coupe Door Wiring Harness Rear Door Right Left N/O/S 8727996

£37.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9113355

BMW E87N E90 E91 Mini Cooper R56 DC/DC Torque Converter Wandler 9113355

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 8518126

BMW F01 LCI F10 F30 Diesel N57N Engine Control Unit ECU DDE 8518126 Automatic

£85.95

Free delivery: Aug 28

If paid before 14:00

Part no. 8596362-1

BMW F20 F30 LCI B47 190HP Engine Control Unit ECU Kit DDE 8596362 Automatic

£170.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6941445

BMW E63 E64 Bluetooth Cable Hands Free Telephone Microphone Unit 6941445

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6960227

BMW E65 E66 Sensor Air Bag Front Left Door N/S Module Airbag 6960227

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6956748

BMW E87 E90 E91 LCI PDC Ultrasonic Parking Sensor Tiefgruen Green A43 6956748

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6960308

BMW 1 Series E88 Convertible Rear Bumper FM Radio Aerial Antenna 6960308

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 7952885

BMW F22 218i B38 136HP Engine Module Control Unit ECU DME 7952885 Automatic

£180.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9165623

BMW X5 X6 Series E70 E71 Airbag Control ECU Unit Module 9165623

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9271715

BMW F20 F21 F22 F30 F31 Alpine Cd Radio Player Head Unit 9271715

£118.95

Free delivery: Aug 28

If paid before 14:00

Part no. rhd-7809329-1

BMW 7 Series E65 E66 730d M57N 204HP ECU Kit DDE + CAS / ZAS + Key 7809329

£180.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6947817

BMW E65 E66 IDrive Control Unit Front Centre Console Module ECU 6947817

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 7561834-13

BMW E87 E90 120i 320i N46 150HP Engine Control DME Module 7561834 Automatic

£94.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9341546

BMW F40 G20 G30 Accelerating Sensor 9341546

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9313618

BMW 3 Series F30 F31 F80 M3 Front Rear Right O/S Wiring Loom Harness Cables Set

£37.95

Free delivery: Aug 28

If paid before 14:00

Part no. 8518268

BMW E90 E91 LCI N47N 318d Diesel Engine Control Unit DDE ECU Manual 8518268

£56.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9873895

BMW F40 Crash Control Unit Air Module ECU Continental 9873895

£51.95

Free delivery: Aug 28

If paid before 14:00

Part no. 8784910

Head-Up Display BMW X4 G02 HUD Dashboard Screen Control Unit Module 8784910

£284.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9462544

BMW F20 F30 F31 Mini F55 F56 F60 Control Unit Air Conditioning Module 9462544

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6957351

BMW 1 3 Series E81 E87 E90 E91 E92 Radio CD Professional 65126957351 6957351

£113.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9241330

BMW X1 E84 USB AUX-IN Socket Plug Input Connector Media Port 9241330

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9313614

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

£47.95

Free delivery: Aug 28

If paid before 14:00

Part no. 7544892

BMW 3 F30 LCI 330e B48X HV Accumulator Battery Negative Cable Ground 7544892

£14.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6839769

KaFAS Module BMW F10 F20 F30 Mini F55 F56 Assist Camera Control Unit 6839769

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. 8579478-4

BMW F20 F30 120d 320d Diesel N47N 184HP ECU Unit DDE 8579478 Automatic

£75.95

Free delivery: Aug 28

If paid before 14:00

Part no. rhd-5A5EE13

Display Screen BMW F40 F44 Touchscreen Central Information Monitor CID 5A5EE13

£142.95

Free delivery: Aug 28

If paid before 14:00

Part no. 7552176-4

BMW E87 E90 120i 320i N46 ECU Engine Control Module Kit DME 7552176 Automatic

£275.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6958414

BMW E60 E61 Alarm System Unit Ultra Sonic Module 9149673

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 8583575

BMW F07 F10 F11 F12 Diesel N57 Engine Wiring Injection Wiring Harness 8583575

£23.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9266350

BMW F01 F02 HiFi System Amplifier Harman Becker Audio Booster 9266350

£37.95

Free delivery: Aug 28

If paid before 14:00

Part no. 8510221-5

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

£142.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9362396

BMW F20 REM Rear Electronic Module Fuse Box Control Unit V3 9362396

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 8638198-7

BMW F20 F30 116i 316i N13 136HP Engine ECU Kit DME 8638198 FEM Key Automatic

£474.95

Free delivery: Sep 1 – 8

If paid before 14:00

Part no. 9149835

BMW X5 E70 Front Seat Control Unit Module Driver's Side 9149835

£47.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9229880-1

BMW Z4 E89 Body Control Module H3 Junction Box ECU 9229880

£47.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9123605

BMW X5 Series E70 Cable Glove Compartment Wiring Loom Harness 9123605

£23.95

Free delivery: Aug 28

If paid before 14:00

Part no. 7304589

BMW F01 F02 Headlight Module LEAR TMS Headlamp Control Unit Module 7304589

£56.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9321014

BMW F01 Display Screen On Board Sat Nav Central Information Monitor 9321014

£161.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9320144

BMW F10 Sound Audio Amplifier Control Unit Module 9320144

£498.95

Free delivery: Sep 1 – 8

If paid before 14:00

Part no. 6908307

BMW E46 Convertible Alarm System Sensor Anti-Theft Module Control Unit 6908307

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 7350697-2

BMW X1 F48 Rear Light Lamp Trunk Tailgate Left N/S Loom Harness Wiring 7350697

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 8517874-8

BMW F20 118d F30 318d N47N 143HP Engine ECU Kit DDE 8517874 + Key + FEM + Lock

£189.95

Free delivery: Sep 1 – 8

If paid before 14:00

Part no. 6867932

BMW F20 F21 F23 Mini Cooper F55 F56 Control Unit Trailer Tow Hitch 6867932

£51.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9177872

BMW 5 6 Series E61 E63 E64 LCI Map Card Fuse Box Grouping Diagram 9177872

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9260874

Alarm Sensor BMW E84 E91 Ultra Sonic-Module System Control Unit 9260874

£32.95

Free delivery: Aug 28

If paid before 14:00

Part no. 8510221-13

BMW E90 E91 LCI E92 325d Diesel N57 204HP ECU Engine Kit DDE 8510221 Automatic

£94.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6933666

BMW 7 Series E65 E66 E67 Antenna Amplifier Diversity 6933666

£47.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9367350

KaFAS Camera BMW F10 F20 F30 Mini F55 F56 Front Control Unit Module ECU 9367350

£23.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9264917

BMW Z4 E89 Roadster Air Module Control Unit ECU 9264917

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9868384

Body Control BMW F22 F23 F30 F32 F33 F36 BCM Module Unit ECU 9868384

£85.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6904620

BMW 7 Series E65 E66 Diversity Antenna Tuner Amplifier Wiring 6904620

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9335300

BMW 1 Series F20 LCI Front Door Wiring Loom Harness Passengers Side 9335300

£19.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9389658

BMW F20 F21 F22 Telematics Bluetooth Control Module Unit TCB ECE GPS 9389658

£47.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6819329

KaFAS Camera BMW i3 I01 F10 F20 F30 LCI Speed Control ECU Module Unit 6819329

£23.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6945074

BMW E90 E92 E93 Video Module Unit Bracket Mount Holder Carrier 6945074

£13.95

Free delivery: Aug 28

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: Aug 28

If paid before 14:00

Part no. 6824116

BMW 3 F30 LCI 330e Hybrid High Voltage Battery Wiring Inverter Cable 6824116

£75.95

Free delivery: Aug 28

If paid before 14:00

Part no. rhd-9252344

Head-Up Display BMW X5 E70 HUD Dashboard Screen Control Unit Module 9210852

£85.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9270355

Fuse Carrier BMW F40 Mini F55 F56 F57 F60 Distribution Box 9270355

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 90147413

Headlight Module BMW F40 LED Headlamp Inverter Converter Control Unit 90147413

£32.95

Free delivery: Aug 28

If paid before 14:00

Part no. 7130344

BMW F07 Plug Bumper Front Trim Dummy Plug Right O/S GT Gran Turismo 7130344

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 390306

BMW Navigation Road Map 2004-2 Europe Professional Navteq 0390306

£28.95

Free delivery: Aug 28

If paid before 14:00

Part no. 8519005-1

BMW X1 E84 18dX Diesel N47N Engine Control Unit ECU Kit DDE 8519005 CAS3 Key

£75.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9266328

ICM Module BMW F07 GT F01 F02 F03 F04 Air Module Control Unit ECU 9266328

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6791131

BMW F01 ICM Module Integrated Chassis Management QL ES Control Unit 6791131

£37.95

Free delivery: Aug 28

If paid before 14:00

Part no. 8507245-1

BMW E81 E82 E87 LCI E88 123d Engine N47S ECU Kit DDE 8507245 CAS3 + Key Manual

£142.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9226901

Body Control Module BMW F01 ECU Junction Box PL6 JBBFE III 3 Lear 9226901

£47.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9124583-KAS

BMW E87 E90 Front Rear PDC Ultrasonic Parking Sensor Kaschmir Silver A72 9124583

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9130157

BMW X6 Series E71 Aerial Antenna Amplifier Diversity 868 MHZ 9130157

£62.95

Free delivery: Aug 28

If paid before 14:00

Part no. 8649869

BMW F30 LCI 330e Hybrid HV Accumulator Battery Positive Cable Wiring 8649869

£47.95

Free delivery: Aug 28

If paid before 14:00

Part no. 7928660

BMW G30 Radio Audio Remote Receiver Control Module Unit 7928660

£23.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6911584

BMW E65 E66 Steering Wheel MFL Phone Switch Buttons Left N/S 6911584

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 7561834-21

BMW E85 E87 E90 120i 320i N46 150HP Engine ECU DME 7561834 Manual

£142.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6856980

BMW F01 F10 F11 F30 F31 AHK Towing Hitch Tow Bar Control Module Unit ECU 6856980

£94.95

Free delivery: Aug 28

If paid before 14:00

Part no. 8368231

BMW E46 Door Speaker Tweeter Front Left N/S 8368231

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6866397

BMW F20 VDC Dynamic Adaptive Suspension System Control Unit Module ECU 6866397

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. 5A20558

BMW X2 F39 F45 F46 Automatic Gearbox ECU Control Module EGS Unit 5A20558

£260.95

Free delivery: Sep 1 – 8

If paid before 14:00

Part no. 9277812

BMW 2 Series F23 Convertible Rear Trunk Tailgate Antenna Aerial DAB 9277812

£56.95

Free delivery: Aug 28

If paid before 14:00

Part no. 8576333-3

BMW F20 F30 F32 120dX 320dX 420dX Diesel N47N 184HP ECU Kit DDE 8576333 Key FEM

£189.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6870277

Air Module BMW X5 F15 X6 F16 ECU ICM Control Unit 6870277

£37.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9217033

Battery Cable BMW F01 F02 Positive Wiring Plus Pole Red 9217033

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. 8577625

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

£32.95

Free delivery: Aug 28

If paid before 14:00

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