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 F20 F30 F36 Front Electronic Module Control Unit FEM 9381102

£75.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8570625

BMW 5 Series E60 A/C Pressure Sensor 8570625

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8707676

BMW F22 F32 F36 Body Control Comfort Module Unit 8707676

£75.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9289213

Head Unit BMW F20 F21 F30 F31 Professional Navigation Sat Nav Unit 9289213

£189.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9354758

BMW X3 F25 Central Gateway Module Control Unit Lear ZGW-02 4SK Mid 9354758

£23.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8795477

BMW G20 Power Distribution Box LIN Module Control Unit ECU 8795477

£32.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7317513

BMW F11 Touring Control Unit Rear Tailgate Boot Lid Function Module 7317513

£28.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6960226

Air Bag Module BMW E65 E66 Sensor Rear Seat Airbag Control Unit ECU 6960226

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8571349

BMW F20 F21 F30 LCI F22 F32 G30 X3 F25 Starter Acoustic Vibration Plug 8571349

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9383176

BMW F20 F30 F34 BCM FEM BSI Body Control Module Unit 9383176

£51.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9289590

BMW X5 X6 E70 E71 Antenna Amplifier Module Trap Circuit 9289590

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8582279-4

BMW F30 320d ed Diesel N47N 163HP Engine Control Unit ECU DDE 8582279 Manual

£56.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9233010

BMW F10 Champ 2 Radio CD Player Head Unit ECU 9233010

£123.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6879834

Control Unit BMW F20 F21 F22 F30 F31 F32 ICM Module ECU 6879834

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. rhd-7510828

BMW 7 Series E65 735i 745i Petrol N62 Alternator Starter Wiring Cable 7510828

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6860729

VDC Module BMW F31 Touring Air Suspension Level Control Unit 6860729

£94.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9488418

Adblue Module BMW G20 G21 G30 G31 X3 G01 Control Unit ECU SCR 9488418

£32.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8383185

BMW X5 7 Series E38 E53 Control Unit Illuminated Door Handle 8383185

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9227470

BMW 1 Series F20 F21 LCI Antenna Aerial Noise Suppression Filter 9227470

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7811898

BMW E60 E61 530d M57N 218HP Engine Control Unit Module ECU DDE 7811898 Automatic

£170.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8581370-1

BMW F40 Mini Cooper F56 F57 F60 Bracket Control Unit Box Engine 8581370

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9346273

BMW F15 Kafas Camera Lane Assist Module Control Unit ECU 9346273

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9229008

BMW F02 Antenna Amplifier Diversity Audio Sound Unit 9229008

£80.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8583653-1

Engine Wiring Loom BMW F10 F30 F31 LCI N57N Wiring Harness Glow Module 8583653

£23.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7579142-3

BMW E81 E87 LCI 116i 1.6 Petrol N43 ECU Control Kit DME 7579142 CAS3 Keys Manual

£142.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6805819

Active Sound Unit BMW F80 M3 F82 F83 M4 F87 M2 Control Module Design 6805819

£142.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7807530

BMW E60 E81 E87 LCI E90 120d 320d 520d N47 Engine Control Unit ECU DDE 7807530

£75.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9387624

BMW F20 F21 F30 Sensor Rain Light Solar Condensation 9387624

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8606445

Wiring Harness BMW F20 F21 F30 LCI Motor Sensor System Module 1 8606445

£32.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9257015

BMW F07 F25 CIC Sat Nav Professional Infotainment Radio Player Head Unit 9257015

£189.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9189906

BMW E88 E93 LCI Air Module Control Unit ECU 9189906

£28.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8577834

BMW F30 X3 F25 N57N 330d 30dX 258HP Engine Control Unit ECU 8577834 Automatic

£142.95

Free delivery: Jul 15 – 22

If paid before 14:00

Part no. 9276096

BMW 5 6 7 Series F01 F10 F13 Antenna Aeral Amplifier Diversity 868 MHZ 9276096

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6935597-TS1

BMW E81 E87 Front Rear Parking Sensor PDC Titansilber Silver 354 6935597

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6913246

BMW 7 Series E65 E66 Rear Seat Wiring Cable Electrical System 6913246

£37.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8507912

BMW F30 F31 Engine Wiring Loom N47N Harness Automatic Gearbox 7549282

£56.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8642658

BMW G11 LCI G12 LCI G30 Earth Ground Line Cable Transmission Gearbox 8642658

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7579155

Engine Starter Motor BMW X5 E70 LCI F07 X6 E71 N55 Petrol Denso 7579155

£32.95

Free delivery: Jul 14

If paid before 14:00

Part no. rhd-5A589A6

Display Head Up BMW G20 G21 G26 LCI Dashboard Car System Screen 5A589A6

£284.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8638742

BMW G11 G12 G20 G30 Ground Line Battery Earth Cable Wire Cable 8638742

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9313616

BMW F30 F31 Driver's Side Door Wiring Electrical Loom Harness Cable 9313616

£47.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8616810

BMW 1 2 3 4 Series F20 F21 F22 F23 F30 F31 F32 Battery Cable Connecying Line

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8798221

Display Screen BMW F45 F46 Central Information Navigation Monitor 6,5" 8798221

£170.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6843901

BMW F20 Module BCM Body Control Unit Module ECU 6843901

£56.95

Free delivery: Jul 14

If paid before 14:00

Part no. rhd-7811813

BMW 1 X1 3 Series E81 E82 E84 E87N E90 Wiring Harness Engine Gearbox Module

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6988079

BMW X5 E53 Navigation System Video Module Control Unit High 6988079

£137.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8240500

Wiring Loom Cable BMW E46 X5 E53 X3 E83 Seat Occupancy Sensor 8240500

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8574091-2

BMW F10 F11 520d N47N 184HP ECU Kit Unit DDE 8574091 CAS4 Keys Manual

£142.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9243637

BMW X3 F25 Rear Bumper PDC Wiring Loom Parking Sensor Cable Harness 9243637

£56.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8512500-1

BMW E81 E82 E87 LCI E88 123d Engine N47S ECU Kit DDE 8512500 CAS3 + Key Manual

£265.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8574372-2

BMW F30 F32 330d 430d N57N Engine Control Unit ECU Kit DDE 8574372 Automatic

£151.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9371789

BMW F20 F21 F30 F31 Bluetooth Teleservices GPS Telematics Module 9371789

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6964141

BMW 7 Series E65 E66 E67 Control Unit Module Door Front Driver Side 6964141

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6915999

BMW 7 Series E65 E66 Rear Seat Wiring Cable Electrical System 6915999

£37.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9185542-1

BMW X5 E70 Radio Navigation CCC Professional CD Player Head Unit 9185542

£284.95

Free delivery: Jul 15 – 22

If paid before 14:00

Part no. 7540203

BMW X5 Series E70 Control Unit DME Module Emergency Release Lock 7582630

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8678976

Engine Wiring Mini F56 BMW F40 Petrol B38C Valvetronic Servo Motor Harness

£28.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7800164

BMW F10 F11 N57 N57S Positive Battery Cable Alternator Starter Lead 7800164

£28.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9337210

BMW 4 F33 F83 M4 Cabrio Front Door Driver's Side Wiring Loom Cables 9337212

£23.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9399269

BMW X5 F15 Front KaFAS Camera Speed Limit Control ECU Module Unit 9399269

£51.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7793200

BMW X5 E70 X6 E71 E90 E90N E91 E92 E93 Cable Alternator Starter 7793200

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6821404

High Voltage Cable BMW F45 Mini F60 Hybrid Plugin Alternator 6821404

£279.95

Free delivery: Jul 15 – 22

If paid before 14:00

Part no. 6939710

BMW 5 6 Series E60 E61 E63 E64 Passenger Door Airbag Control Module N/S 6939710

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9118263

BMW F01 F02 F03 F10 Antenna Amplifier Module Trap Circuit 9118263

£32.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9505281

BMW G11 G12 G30 G31 G32 F90 F97 X3M F98 X4M Control Unit SAS Module ECU 9505281

£151.95

Free delivery: Jul 14

If paid before 14:00

Part no. 1439740

BMW X5 E53 Cable Starter-Base B Electrical Cable Wiring 3.0i M54 Petrol 1439740

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9338910

Mini Cooper F56 Wiring Driver's Loom Front Right O/S Door Cables 9338910

£32.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8689723

BMW F20 F21 LCI M140i B58 Petrol ECU Control Unit Module DDE 8689723 Automatic

£256.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9247081

BMW X1 E84 Wiring Loom Harness Passenger Side 9247081

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9886543

BMW X2 F39 20dX Diesel B47D 140KW ECU Engine Control Module Automatic 9886543

£275.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8573258

BMW F20 F21 F30 F31 116d 316d 118d 318d Diesel N47N Engine ECU 8573258 Manual

£28.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6943585

BMW E65 E66 E67 Control Electronics Seat Occupancy 6943585

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9496820

Crash Sensor BMW G20 G26 G80 Front Door Left Right N/O/S Air Impact Unit 9496820

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8570442

Engine Wiring BMW F25 F26 2.0dX B47 Loom Module Harness Cable Automatic 8570442

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9242502

BMW E81 E82 E87 E88 E90 E91 Radio Professional CD Player 9242502

£142.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9366338

Dashboard Wiring BMW G30 G31 Front Centre Console Loom Harness 9366338

£23.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8585933

Wiring Loom Harness BMW F20 F30 F36 LCI B47 Engine Gearbox Module 8585933

£104.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6807634-1

Air Module BMW F10 F11 F22 F30 LCI F32 X3 F25 SRS Control Unit ECU 6807634

£23.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8574351-1

BMW X1 E84 18d Diesel N47N Engine Unit ECU Kit DDE 8574351 + CAS3 + Key Manual

£170.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8735982

BMW G30 G31 F90 M5 G11 Antenna Aerial Diversity Amplifier Unit 8735982

£23.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7432799

BMW X5 X6 F15 F16 Diesel Adblue Module Control Unit ECU 7432799

£23.95

Free delivery: Jul 14

If paid before 14:00

Part no. rhd-7803775

Engine Wiring Harness BMW E60 E61 LCI 520d N47 Gearbox Module 7803775

£23.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6863502

BMW F10 F20 F30 VDC Rear M Sport Suspension Control Unit Module 6863502

£85.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7811701-1

BMW E87 E90 LCI 118d 318d N47 Diesel ECU KIT DDE 7811701 + CAS3 + Key Automatic

£85.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8518477-7

BMW F20 120d F30 320d F10 520d 184HP N47N Engine Unit ECU DDE 8518477 Automatic

£37.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8506444

BMW E90 E91 LCI E92 330d N57 245HP ECU Engine Control Unit DDE 8506444 Manual

£94.95

Free delivery: Jul 15 – 22

If paid before 14:00

Part no. 9175867

BMW 5 Series E60 E61 Cable Loom Door Wiring Harness 9175867

£23.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8379938

BMW 3 Series E46 Ultra Sonic-Module 8379938

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7592080-2

BMW E90 E91 LCI 335i N54 306HP ECU Kit DME 7592080 CAS3 Key Sport Dual-Clutch

£284.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7799855-2

BMW 1 3 5 Series E60 E87 E90 M47N2 120d 320d 520d ECU Kit DDE CAS2 Key 7799855

£189.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8703399

BMW G30 F90 M5 Antenna Aerial Diversity Amplifier Unit 8703399

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8798185

BMW F20 F21 F30 F31 Head Unit Basic Media DAB Headunit 8798185

£113.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8596362-5

BMW F20 F30 LCI 120d 320d B47 Engine ECU Kit DDE 8596362 FEM + Key Automatic

£275.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7478448

BMW X3 X4 G01 G02 Footwell Light Module Carpet Control Unit ECU Right 7478448

£75.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7316535-3

BMW F06 F13 Sliding Sunroof Drive Motor Unit Webasto 7316535

£37.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8586536-7

BMW F07 GT F10 F11 535d F13 640d LCI N57Z 313HP Engine ECU DDE 8586536 Automatic

£99.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8573260-4

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

£237.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8691836-2

BMW F20 F30 LCI 118i 318i B38 136HP ECU Kit DME 8691836 Key FEM Lock Manual

£332.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9131850

CD Changer BMW E60 E61 E63 6-DISC Compact without Magazine 9131850

£37.95

Free delivery: Jul 14

If paid before 14:00

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