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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Boot Release Switch BMW F01 F02 F10 F11 LCI Auto Tailgate 9253780

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9281720

BMW F10 F11 KaFAS Camera Assist Speed Limit Control 9281720

£66.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8606777-2

BMW F30 320iX N20 ECU Kit Engine Control Unit DME 8606777 Key FEM Lock Manual

£474.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8582280

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

£32.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9149673

BMW 5 Series E60 E61 LCI Alarm System Unit Ultra Sonic Module 9149673

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9269896

BMW X3 F25 Business CD Radio Player Head Unit Control 9269896

£75.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6812217

BMW X1 F48 Cable Loom Door Rear Left Right N/O/S Wiring Harness 6840095

£23.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9204849

BMW X5 X6 Series E70 E71 Airbag Control Module ECU Unit 9204849

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8610484-4

BMW F20 F21 116i F30 316i N13 136HP Engine Unit ECU Kit DME 8610484 Key FEM

£313.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9367377

BMW F10 520d CAS 4 Car Acess System Control Module Unit ECU CAS4 CG+ELV 9367377

£66.95

Free delivery: Jul 14

If paid before 14:00

Part no. rhd-3412569

BMW X3 E83 Front Left Door Passenger Side N/S Wiring Loom Harness Cables 3412569

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9237055

Antenna Diversity BMW F07 GT Control Unit Module Aeral Amplifier 868 MHZ 9237055

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8168035-1

BMW E60 Trunk Open Cable Boot Lid Tailgate Release Wiring 8360676

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7391043

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

£28.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8602994

BMW 1 X1 X2 Series F39 F40 F48 Mini Cooper One F55 F56 Earth Cable Wire 8602994

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8517874-7

BMW F20 F21 116d N47N 116HP ECU Kit DDE 8517874 + Key + FEM + Lock Manual

£113.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7581848

BMW E81 E87 LCI E90 116i 316i N45N 116HP Engine ECU Unit DME 7581848 Manual

£189.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9205270

BMW F01 F02 F03 DVD CD Changer Multichanger Alpine 9205270

£104.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9159310

BMW F10 Central Sensor LOW 9159310

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6944499

BMW 5 6 Series E60 E61 E63 Passenger Side Door Airbag Control Module 6944499

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9286219

BMW 3 Series F30 F31 Front Door Wiring Loom Cable Harness 9286219

£23.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7794911

BMW E87 E90 E91 Cable Alternator Starter Base B 7794911

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8678968

Engine Wiring Mini F56 F60 BMW F45 F46 Petrol Sensor Module 1 Harness 8678968

£142.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7843335

BMW F10 M5 F12 M6 Engine Wiring Harness Valvetronic Servomotor Cyl.1-4 7843335

£42.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8509722

BMW 1 Series F20 F21 F22 F30 F31 F35 Control Unit Box Engine 8509722

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9311035

Navigation Head Unit BMW F10 F20 F21 F30 F31 Media Player High 9311035

£237.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7843349

BMW F10 F11 LCI M5 F06 F13 M6 S63N Cable Alternator Starter Base B+ 7843349

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8579478-1

BMW F20 F30 120dX 320dX N47N 184HP ECU Kit Control Unit DDE 8579478 FEM Key

£161.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9353416

Junction Box BMW F10 PL6 JBBFE III V1 Body Control Module 9353416

£94.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9238195

Fuse Box Grouping BMW F10 F11 F12 Fuse Placement Map Card Diagram 9238195

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 5A33FB9

Starter Motor BMW X3 G01 G20 G21 G30 G31 B47 Diesel Engine Valeo 5A33FB9

£94.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9121903

BMW E81 E87 E91 Switch Cluster Steering Column Cruise Control 9121903

£165.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6857124

Crash Module BMW F01 F02 LCI F10 F11 F13 ICM Control Unit ECU 6857124

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9248361

Radio Player BMW F10 F11 F20 F21 F25 F30 F31 Alpine CD Champ 2 Head Unit 9248361

£189.95

Free delivery: Jul 14

If paid before 14:00

Part no. rhd-9808495

Mini Cooper R60 R61 Positive Battery Lead Distribution Box Cable 9808495

£56.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8578995-1

BMW F10 520d F20 320d N47N 184HP Engine Module Unit ECU DDE Kit 8578995 Key Cas4

£142.95

Free delivery: Jul 15 – 22

If paid before 14:00

Part no. 5B547A5

BMW E65 E66 E67 Control Unit Door Front Passenger Side 5B547A5

£56.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9360501-2

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

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6934610

BMW Z4 Series E85 Roadster Passenger Side Door Cable Harness Wiring 6934610

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8715685

BMW F40 Mini F55 F56 Mid Range Sound Speaker Front Door Stereo 8715685

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8506373

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

£189.95

Free delivery: Jul 15 – 22

If paid before 14:00

Part no. rhd-9287541

Head Up Display BMW F30 F31 Hud Projector Dash Screen Control Module 9287541

£75.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8693361-2

BMW F87 LCI M2 370HP N55 Engine Control Module Unit ECU DME 8693361 Automatic

£360.95

Free delivery: Jul 15 – 22

If paid before 14:00

Part no. 8518268-2

BMW E90 E91 LCI 318d Diesel 143HP N47N ECU Kit DDE 8518268 + CAS3 + Key Manual

£75.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7823731

BMW E84 E90 E91 LCI 320xd N47 Cable Alternator Starter Base B

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9294196

BMW X3 F25 Sat Navi Radio CD Player Head Unit 9294196

£28.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9181454

BMW X1 E84 Aerial Antenna Noise Suppression Filter 9181454

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9169175-1

Dashboard Monitor BMW Z4 E85 Onboard Central Information Display Screen 9169175

£465.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9145433

BMW 1 Series E81 E87 Boardmonitor Central Information Display Screen 9145433

£237.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8596362-7

BMW F20 F30 LCI 120dX 320dX B47 190HP Engine Control ECU Kit DDE 8596362 Manual

£151.95

Free delivery: Jul 15 – 22

If paid before 14:00

Part no. 9891438

BMW G20 G21 Door Interior LED Module Connector Light Rear Front 9891438

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9340339-3

BMW E87 LCI Max Brose Footwell Light Module Control Unit ECU 9340339

£189.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9232163

BMW X3 F25 Central Gateway Module Control Unit Lear ZGW-02 Lear 9232163

£32.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9345372

Light Control BMW F01 F02 F07 LCE Footwell Module Control Unit Headlight 9345372

£123.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9259469

BMW X3 F25 Fuse Box Power Distribution Control Unit Module Rear 9259469

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6823582

BMW G30 High Voltage Cable Wiring Harness EDH 6823582

£23.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8516122

Battery Cable BMW X5 F15 X6 F16 Alternator Starter Wiring Loom Harness 8516122

£23.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7809196

BMW X3 E83 LCI 2.0d N47 177HP Engine ECU Control Unit Module DDE 7809196 Manual

£142.95

Free delivery: Jul 15 – 22

If paid before 14:00

Part no. 7645837

BMW i3 I01 Electric Gearbox Gear Shifting Actuator Module Unit 7645837

£94.95

Free delivery: Jul 15 – 22

If paid before 14:00

Part no. 5B44D23

BMW F40 G20 G30 U06 Audio Receiver Digital DAB Control Unit Module 5B44D23

£142.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6878198

BMW F20 F21 F25 F30 F31 ECU Air Module Crash Control Unit ICM 6878198

£28.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9396830

BMW F06 F12 F13 E63 Antenna Module Multi band Antenna GPS TEL Left N/S 9396830

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9396828

Antenna Module BMW F06 F12 F13 E63 Rear Multi-band Antenna GPS TEL Right 9396828

£23.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8797551

BMW X1 F48 Door Cable Front Right O/S Wiring Loom Harness 8797551

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6783986

BMW E60 E61 E63 E65 Control Unit Dynamic Drive Front Axle Suspension 6783986

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. 5A7F553

BMW G26 Reverse Rear View Camera 5A7F553

£89.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9873545

PDC Module BMW F40 G20 G21 Parking Assistant Control Unit Module ECU 9873545

£28.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9277814

BMW 2 Series F23 Cabrio Convertible Sat Nav GPS Antenna Amplifier 9277814

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8797572

BMW X1 F48 Door Cable Front Left N/S Wiring Loom Harness 8797572

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6944104

BMW X5 E53 Receiver Heating Remote Control 6944104 70545B

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. rhd-7812746

Engine Wiring BMW X1 E84 20dX Loom Harness Module Manual 7812746

£75.95

Free delivery: Jul 14

If paid before 14:00

Part no. X3 E83 Rear Wiring Loom PDC-1

BMW X3 Series 1 E83 Rear Bumper Wiring Loom PDC Harness Parking Sensor

£28.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7857551

Battery Cable BMW F80 M3 F82 M4 Wire Lead Positive Alternator Starter B+ 7857551

£23.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9286885

BMW Z4 E89 LED Footwell Control Module ECU 9286885

£85.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9387232

BMW F45 F46 Body Domain Controller BDC Control Unit Module LR01 ECU 9387232

£132.95

Free delivery: Jul 15 – 22

If paid before 14:00

Part no. 6970904

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

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8513242-1

BMW F10 F11 520d Diesel N47N 184HP Engine ECU Kit DDE 8513242 CAS 4 + Key Manual

£142.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9282039

BMW X3 F25 Head Unit Navigation GPS Sat Nav Infotainment DAB CHAMP2 9286465

£170.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6940623-QB1

BMW E81 E82 E84 E87 E90 E91 PDC Park Sensor Ultrasonic Set x4 Quarz Blau - A18

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9381105

BMW F20 Fuse Box Control Unit SAM Module Relay 9381105

£37.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7939168

Rain Sensor BMW F20 F21 F30 F31 Windscreen Light Solar Condensation Unit 7939168

£47.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8512292-1

BMW E90 E91 LCI N47N 318d 143HP Engine ECU Kit DDE 8510832 + CAS3 + Key Manual

£108.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6944875

BMW E36 Z4 E85 Z3 Module Radar Burglar Alarm Sensor 6944875

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6993311

Seat Module BMW F20 F32 F33 Control Unit Front Left Right N/O/S 6993311

£94.95

Free delivery: Jul 14

If paid before 14:00

Part no. rhd-7570604

BMW 1 3 Series E81 E90 E91 N45N N46N Engine Gearbox Wiring Harness Module

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8510221-4

BMW E90 E91 LCI E92 325d Diesel N57 204HP ECU Engine Kit DDE 8510221 CAS3 + Key

£94.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9246357

BMW F07 GT Central Gateway Module ECU Control Unit Lear ZGW-01 High 9246357

£28.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9120788

BMW 5 Series E60 E61 Wiring Loom Harness Passenger Side 9120785

£23.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7823420-2

BMW E60 E87 E90 LCI N47 120d 320d ECU Control Unit Kit DDE 7823420 CAS3 Key

£227.95

Free delivery: Jul 14

If paid before 14:00

Part no. rhd-8581851

Transmission Wiring BMW X5 F15 X6 F16 N57 Gearbox Harness Loom 8581851

£47.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8589141-9

BMW F20 F21 F23 F30 F31 B47 190HP Engine Control ECU Kit DDE 8589141 Automatic

£284.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9230404

BMW X1 Series E84 Rear Bumper PDC Cables Wiring Loom Set 9230404

£47.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8512499-11

BMW X1 E84 xDrive 18d N47 143HP Engine Unit ECU Kit DDE 8512499 CAS3 Key Manual

£142.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8714403

BMW 1 Series F40 Driver Side Door Cable Harness Wiring 8714403

£37.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8586571

BMW 1 3 F20 F30 LCI B47 Engine Gearbox Module Wiring Cable Loom Harness 8586571

£56.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6798872-2

BMW F10 F11 F30 F31 Wheel Electronics Module RDC 433MHZ Control Unit X2 6798872

£28.95

Free delivery: Jul 14

If paid before 14:00

Part no. RHD-9358963

BMW F32 F33 F36 F82 F83 Head-Up Display HUD Dash Screen 9358963

£56.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9301523

BMW 5 Series F07 F10 F11 CAS4 Control Unit Key Reading Module 9301523

£66.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6856284

BMW F30 F31 F32 F34 Lane Change Wrning Sensor Module Slave HC-2 Left 6856284

£104.95

Free delivery: Jul 14

If paid before 14:00

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