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 F30 LCI Electrical Battery Cover Lid Panel 61219350711 9350711

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7286050

BMW F20 Control Unit Module Wing Mirror Power Fold 7286050

£56.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6942551

BMW E87 E90 E91 Front Left N/S Seat Lordosis Pad Adapter Lead Wiring

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9276036

BMW 5 Series F11 Touring Antenna Aeral Amplifier Diversity 868 MHZ 9276036

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9133144

BMW 5 Series E61 Body Gateway Module KGM LOW LEAR 9133144

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9374508

BMW F20 F21 F30 F31 REM Rear Electronic Module Fuse Box Control Unit V3 9374508

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6978374

Air Module Unit BMW E60 E61 Sensor Control ECU 6978374

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 5A12E91

BMW F44 G20 G21 RP Head Unit Radio Media GPS Sat Navigation Unit 5A12E91

£189.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8380407-1

BMW X5 E53 Power Distribution Fusebox Cover Fuse Box 8380407

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8510249

Engine Wiring BMW E90 E91 LCI N47N Loom Harness Cable Automatic Gearbox 8510249

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9257098

BMW F10 F11 F20 F21 F22 F30 F31 Front Seat Control Module ECU 9257098

£56.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8620771

BMW F20 F21 F30 F32 N55 Power Distribution Module Bracket Cover Carrier 8620771

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7848469

BMW F80 M3 F82 F83 M4 Wiring Harness Engine Gearbox Module 7848469

£94.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9137725

BMW E63 E64 LCI Camera Lane Departure Warning 9137725

£23.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8377658

BMW X5 SERIES E53 TV amplifier 8377658

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9267980

BMW F10 Fuse Location Diagram Map Fuse Grouping 9267980

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8267406

Headrest Adjustment BMW E46 E64 Front Right O/S Seat Actuator 8267406

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. rhd-7564408

BMW 3 Series E90 320si N45 Petrol Engine Wiring Loom Harness 7564408

£92.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9267535

BMW X3 F25 Body Control Module ECU Junction Box JBBFE III 3 V9 Lear 9267535

£28.95

Free delivery: Jul 14

If paid before 14:00

Part no. 3450247

BMW X3 E83 LCI Map Card Fuse Box Grouping Diagram 3450247

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6868598

BMW 1 2 3 F20 F21 F22 F30 F31 ECU ICM Control Unit Module 6868598

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6976780

BMW 7 Series E65 E66 Antenna Tuner Amplifier Professional 6976780

£80.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8510592-1

BMW E81 E87 E90 LCI 118d 318d N47 ECU Kit DDE CAS3 Key 8510592

£75.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7534921

BMW 3 X3 Series E46 E83 Engine Electronics Complete Control Unit Box 7534921

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. rhd-9268710

BMW F01 Display Screen On-Board Central Information Monitor 10,25" 9218454

£47.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9287441

BMW F21 F22 F23 Wiring Loom Harness Passenger Side 9287441

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9383181

BMW F20 F21 F22 F30 F31 F32 F36 Fuse Box Body Module Control Unit FEM 9383181

£104.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9874189

BMW 1 3 Series F20 F30 MINI F56 Control Unit Air Conditioning Module 9284440

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8636596

BMW 1 3 Series F20 F21 F30 F31 Line Cable Power Distribution Module 8636596

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9232896-3

Dashboard Monitor BMW X5 E70 X6 E71 Onboard Display Screen 8,8" Unit 9232896

£66.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6851284

BMW X3 F25 ICM Control Unit Air Module SRS ECU 6851284

£56.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9259170

BMW 5 Series F10 Front Left Seat Wiring Loom Cable Harness 9259170

£23.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6940588

BMW 5 Series E60 E61 Alarm System Unit Ultra Sonic Module 6940588

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. rhd-8511708

BMW E84 E90 LCI N47N Engine Gearbox Wiring Loom Harness Cables 8511708

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9362398

BMW F20 F21 F30 F31 F32 F45 Body Control Unit Module REM 9362398

£28.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9185524

BMW E60 E61 Radio Professional Navigation System Controller Head Unit 9214925

£218.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7595179-18

BMW E81 E87 LCI 120i E90 E91 320i N43 170HP Engine ECU DME 7595179 Manual

£94.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9340522

BMW 5 F10 LCI Central Gateway Module ECU Control Unit LEAR ZGW-02 4SK 9340522

£56.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9214243

BMW F10 F11 Battery B+ Engine Compartment Terminal Point 9214243

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8579478-2

BMW F20 F30 120d 320d N47N 184HP ECU Kit Control Unit DDE 8579478 FEM Keys

£123.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9302931

BMW F01 F02 LCI Cable Loom Door Driver's Side Wiring Harness 9262859

£32.95

Free delivery: Jul 14

If paid before 14:00

Part no. 3404568

BMW X3 Series E83 2.5i 3.0i Engine Starter Motor Positive Battery Cable 3404568

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9244261

Module BMW F10 Central Gateway Control Unit Module ZGW-01 High 9244261

£23.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6920478

BMW 7 Series E65 E66 E67 Sensor Front Right Door Airbag 65776920478 6920478

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6958198

BMW 1 3 Series E81 E87 E90 E91 E92 6-disc CD Changer With Magazine 6958198

£59.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7296108

BMW 4 Series F32 F82 M4 Rear Third Stoplamp Stop Lamp Brake Light White 7296108

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9276099

BMW F01 F10 Diversity Aerial Antenna Amplifier Module DAB 9276099

£28.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7552176-7

BMW Z4 E85 2.0i N46 150HP ECU Engine Control Kit DME 7552176 CAS2 Key Manual

£161.95

Free delivery: Jul 15 – 22

If paid before 14:00

Part no. 9281519

BMW F20 F21 F22 F30 F31 F32 Radio Professional CD Player 9281519

£123.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7521759

BMW 3 5 X5 E39 E46 E53 Automatic Gearbox Basic Control Unit EGS

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9315152

BMW X3 F25 Fuse Box Grouping Map Diagram Location 9315152

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9250459

BMW X3 F25 Footwell Light Module Control Unit ECU FRM3 9250459

£32.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6995617

BMW F40 F44 G20 G21X5 G05 X6 G06 Immobilizer Emergency Start Coil 6995617

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9299335

BMW F01 F02 F07 F10 F11 CAS4 Control Unit Key Reading Module 9299335

£47.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6875997

ICM Control Unit BMW F01 F02 LCI F06 F10 F11 F13 ECU Module 6875997

£28.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9224617

BMW X5 E70 Footwell ECU Light Control Unit Module FRM IIIR Lear 9224617

£118.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8513250-2

BMW F10 F11 520d Diesel N47N 184HP Engine Control Unit ECU DDE 8513250 Manual

£85.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6933410

BMW E85 Fuses Electrical Fuse Set 6933410

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6927705

BMW 5 Series E60 E60N E61 E61N Battery lead positive underfloor 80 MM² AL petro

£56.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9244199

BMW E92 E84 Telematics Module Bluetooth Combox Telematik Phone Module 9244199

£47.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6801167

BMW 2 Series F23 Convertible Rear Tailgate Antenna Aerial AM/FM/TEL 6801167

£47.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8579479-1

BMW 1 3 Series F20 F21 F30 F31 118d 318d N47N ECU Kit DDE 8579479 + Key + FEM

£170.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8570934-1

BMW F20 F21 116d ed Diesel N47N 116HP ECU Kit DDE 8570934 + Key + FEM Manual

£189.95

Free delivery: Jul 15 – 22

If paid before 14:00

Part no. 9231515

BMW F31 Rear Antenna Aerial Amplifier AM/FM DAB 9231515

£56.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7587164-2

BMW E82 E88 Cabrio 125i N52N 218HP ECU Kit DME 7587164 CAS3 Key Manual

£256.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9343304

BMW X5 F15 X4 F26 Antenna Aerial Diversity Trap Circuit Control Module 9343304

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9273597

BMW F01 F10 F11 Audio Player Rear DVD Background ECE US Head Unit 9273597

£142.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8510829-2

BMW E90 E91 LCI N47N 320d Engine ECU KIT DDE CAS 3 + Key 8510829 Automatic

£189.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7588620-1

BMW E60 E90 325i 525i N53 218HP ECU Kit Control Unit DME 7588620 CAS3 Key Manual

£360.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9315682

Body Control Module BMW F20 F21 F30 F31 F32 Comfort Unit FEM ECU LR01 9315682

£94.95

Free delivery: Jul 14

If paid before 14:00

Part no. 3450286

BMW X3 E83 LCI N47 Earth Cable Flow Electric Battery Negative 3450286

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9227172

BMW X6 Series E71 ECU Body Control Module Junction Box PL4 9227172 61359227172

£123.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9366166

BMW F10 F11 F12 F13 Audio Amplifier Harman Becker Top HIFI System Unit 9366166

£522.95

Free delivery: Jul 14

If paid before 14:00

Part no. 5A41CA2

Air Module BMW F45 F46 Mini F55 F56 F60 ECU Control Unit 5A41CA2

£189.95

Free delivery: Jul 15 – 22

If paid before 14:00

Part no. 8506434-4

BMW E81 E84 E87 E90 LCI 18d 118d 318d N47 ECU Kit DDE 8506434 CAS3 Key Automatic

£218.95

Free delivery: Jul 15 – 22

If paid before 14:00

Part no. 6907314

BMW 7 Series E65 Dynamic Drive Pump Wiring Loom Harness ARS Valve Block 6907314

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. rhd-7803778

Engine Wiring BMW E60 E61 LCI 520d N47 Automatic Gearbox Loom Cable 7803778

£37.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6868251

Air Module BMW F01 F02 LCI F07 GT F10 F11 F13 ECU ICM Control Unit 6868251

£23.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9187534

BMW E81 Body Control Module Unit ECU L2 PL2 JBBFEII 9187534

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6874337

BMW F10 F20 F30 VDC Rear M Sport Suspension Control Unit Module 6874337

£51.95

Free delivery: Jul 14

If paid before 14:00

Part no. 2447802

Telematics Control Unit BMW F20 F21 F23 F30 F31 F32 Module ATM ECE 3G 2447802

£142.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7928576

Audio Receiver BMW F40 G20 G30 Digital DAB Control Unit Module 7928576

£161.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8510829-3

BMW E90 E91 LCI 320d N47N Engine Basic DDE 8510829 Control Unit Manual

£37.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6965263

BMW 1 3 Series E82 E90 E92 Switch Cluster Cruise Control Stalk Unit 6965263

£94.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8639595-12

BMW F30 F31 F32 328i 428i N20 245HP Engine Control ECU DME 8639595 Automatic

£189.95

Free delivery: Jul 14

If paid before 14:00

Part no. rhd-3416118

BMW X3 Series E83 2.0d 3.0d Instrument Cluster Speedo Clocks Diesel 3416118

£23.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6866990

Airbag Module BMW F01 F02 LCI F10 F11 F13 Air Bag ECU ICM Control Unit 6866990

£23.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8671504

Starter BMW G20 G21 G30 G31 G01 Engine Starter Motor 8671504

£32.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6841702

BMW X3 G01 Power Battery Distribution Junction Box Control Unit Rear 6841701

£94.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7304593

Bi-Xenon Headlight BMW F07 F10 F11 Control Unit Module 7304593

£94.95

Free delivery: Jul 14

If paid before 14:00

Part no. RHD-8583564

Gearbox Wiring Loom BMW X5 F15 X6 F16 Diesel N57 Wire Harness Engine 8583564

£51.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6856283

BMW F30 F31 Lane Change Wiring Sensor Module Master Right O/S HC-2 6856283

£104.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9185532

BMW E87 LCI CCC CD Professional Navigation System Controller 9185532

£237.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9861558-1

Rain Sensor BMW F20 F21 F30 F31 Windscreen Light Solar Condensation Unit 9861558

£32.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8506375-3

BMW E81 E87 E90 E91 LCI 118d 318d N47 Diesel ECU KIT DDE 8506375 CAS3 + Key

£94.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9441865

Head Unit BMW F20 F21 F22 F30 F31 LCI Radio CD Player Navigation GPS 9441865

£142.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6809316

BMW F10 F20 F23 F30 Telematics Module Bluetooth Communications Control 6809316

£94.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8574091

BMW F10 F11 520d N47N 184HP Engine Control Unit ECU DDE 8574091 Automatic

£75.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6856874

BMW F10 F11 F12 ECU ICM Control Unit Module 6856874

£161.95

Free delivery: Jul 14

If paid before 14:00

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