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 F22 F30 Rear Electronic Module REM Fuse Box Control Unit V5 ECU 6809053

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6801326

BMW F15 Door Wiring Harness Loom Cable Front Left N/S 6801453

£28.95

Free delivery: Jul 14

If paid before 14:00

Part no. 5A656B9

BMW G20 G21 G26 Front Air Module SRS Control Unit 5A656B9

£170.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6933264

BMW E65 E66 Control Unit Door Rear Passenger Side 6933264

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9190107

BMW Z4 E89 Battery B+ Engine Compartment Terminal Point 9190107

£28.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9207074

BMW X3 E83 Telematics Bluetooth Control Unit Module Computer 9207074

£42.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8511409

BMW F10 F11 N57N Control Unit Module Box Cover Bracket Carrier Mount 8511409

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8654466-1

BMW F45 225i 231HP B48 Engine ECU Kit Unit DME 8654466 BDC Key Automatic

£569.95

Free delivery: Jul 15 – 22

If paid before 14:00

Part no. 6994419

BMW G20 Power Distribution Fusebox Cover Fuse Box Terminal 6994419

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9200821

BMW E81 E87 E90 MULF Hands-free Electronics Charging Module 9200821

£23.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6928369

BMW E60 Dashboard Solar Receiver Sensor Plug Socket Wiring 6928369

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8602802

BMW i3 I01 Hybrid Rex Engine Wiring Cable Harness Bracket Mount Trim 8602802

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 5A34CF3

BMW F40 Body Domain Controller BDC Control Unit Module ECU 5A34CF3

£370.95

Free delivery: Jul 14

If paid before 14:00

Part no. 5A57781-1

BMW F40 M135i B48 306HP Engine Unit ECU KIT DME 5A57781 BDC Key Automatic

£237.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6958526-1

BMW 5 X5 X6 Series 1 E60 E61 E70 E71 F10 F11 Seat Adjustment Switch Right O/S

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9389070-1

BMW F36 Fuse Box Control REM Electric Power Distribution 9389070

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8616813

BMW X5 F15 N20 Radiator Connection Line High Voltage Battery 8616813

£56.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7352601

BMW X1 Series F48 Head Air Module Roof Curtain Left N/S 7352601

£75.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8582155-2

BMW F20 F30 F32 120d 320d 420d 184HP N47N Engine ECU Kit DDE 8582155 FEM Key

£237.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7634297-5

BMW F20 N13B16A 170HP Engine Control Module ECU Kit DDE 7634297 Automatic

£360.95

Free delivery: Jul 15 – 22

If paid before 14:00

Part no. 6772742

BMW 3 4 Series F80 M3 F82 M4 Control Unit Active Sound Design 2622362

£56.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7599881-23

BMW E60 LCI E61 LCI 320i N43 N43B20A Petrol Engine Control Unit ECU Kit 7599881

£189.95

Free delivery: Jul 14

If paid before 14:00

Part no. RHD-7523523-2

BMW E65 E66 745Li N62 333HP Engine Control ECU DME Kit 7523523 Automatic

£189.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6971353

BMW X3 E46 E83 Navigation Computer GPS System DVD Player Unit 6971353

£85.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8584817

BMW G20 G21 G01 G02 Wiring Harness Engine Glow Plug Module 8584817

£23.95

Free delivery: Jul 14

If paid before 14:00

Part no. 3437180

BMW E83 Telephone Bluetooth Roof Aerial Module Control Unit 3437180

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8573257-2

BMW F10 F11 520d Diesel N47N 184HP Engine ECU Kit DDE 8573257 Key FEM Automatic

£341.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9132254

BMW Z4 E85 E86 CID Control Unit CD Player Radio Audio System 9132254

£142.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8576333-1

BMW F10 F11 520d X3 F25 20dX N47N 184HP ECU Kit DDE 8576333 Key CAS4 Automatic

£189.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6826794-1

BMW F10 F20 F30 Navigation Head Unit High Control Module Japan 6826794

£208.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9276009

BMW F07 GT Rear Antenna Aerial Amplifier AM/FM DABIII FBD2 868MHZ 9237057

£161.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8574372-3

BMW F30 330d F32 430d N57N 258HP Engine Unit ECU Kit DDE 8574372 Key FEM

£180.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8630125-5

BMW F21 Engine Control ECU Manual 1.6 Petrol 170 HP 118i N13 N13B16A 8630125

£379.95

Free delivery: Jul 15 – 22

If paid before 14:00

Part no. 8582279-9

BMW F30 F32 320d 420d N47N 184HP Engine Control ECU Kit DDE 8582279 Automatic

£474.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7645975

BMW X5 F15 Service Cover High Voltage Battery 7645975

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8584276-1

BMW F30 F31 320d Diesel N47N 163HP ECU Kit DDE 8584276 + Key + FEM 8584276

£189.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7466102

BMW X3 F97 G01 X4 F98 Led Light Daytime Running Module Control Unit DRL 7466102

£47.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8573260-10

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

£142.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8518269-5

BMW E90 E91 LCI N47N 320d ed 163HP ECU Engine Control Unit DDE 8518269 Manual

£47.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7622995

Cable Alternator Starter BMW F20 F21 F30 F31 N55 Battery Wiring Harness 7622995

£23.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6886187

Airbag Module BMW F20 F21 F30 F31 F32 ECU ICM Plus Control Unit Air Bag 6886187

£28.95

Free delivery: Jul 14

If paid before 14:00

Part no. RHD-9230003

BMW X5 E70 Head Up Display Screen Projector Dashboard HUD 9230003

£47.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8714478

BMW F40 Door Wiring Cable Harness Loom Rear Left Right N/O/S 8714478

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8614091

BMW X5 F15 Seal Service Cap High Voltage Battery Unit 8614091

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7541779

BMW Z4 E85 2.0i N46 Cable Alternator Starter Base B+ 7541779

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9224869

BMW F10 F11 F12 F13 Rear Bang&Olufsen Mid Range Speaker Left Right N/O/S 9224869

£94.95

Free delivery: Jul 14

If paid before 14:00

Part no. 5B79167

BMW F74 Gran Coupé FDR High REDE Control Unit ECU Front Driver Door 5B79167

£151.95

Free delivery: Jul 15 – 22

If paid before 14:00

Part no. 3404171

BMW X3 E83 Steering Control Module Unit Servo SVT Servotronic 3404171

£23.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8649182

BMW F15 Positive Cable Battery Starter Alternator Negative 8649182

£47.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8592700

Glow Plug Wiring BMW F48 Mini F57 Wiring Harness Engine Module 8592700

£32.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8574095-3

BMW F20 F21 F30 118d 318d Diesel N47N Engine ECU DDE 8574095 Key FEM Automatic

£284.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9151054

BMW X5 E70 X6 E71 Multimedia Radio Sat Nav Player DVD System Head Unit 9151054

£175.95

Free delivery: Jul 14

If paid before 14:00

Part no. rhd-9131863

BMW 3 Series E93 Cable Set Seat Motors Driver's Side 9131863

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8582280-3

BMW F20 F21 116d N47N 116HP ECU Kit DDE 8582280 + Key + Lock + FEM Manual

£237.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9468429

BMW F45 LCI Battery Cell Module Supervision Circuit Control Unit 225xe 9468429

£142.95

Free delivery: Jul 15 – 22

If paid before 14:00

Part no. 8573258-10

Engine Control Unit BMW F20 116d F30 316d N47N 116HP ECU DDE 8573258 Manual

£28.95

Free delivery: Jul 14

If paid before 14:00

Part no. 5B65011

BMW F70 F74 G60 G61 G68 X2 U10 X1 U11 BCP Body Control Module Unit ECU 5B65011

£322.95

Free delivery: Jul 15 – 22

If paid before 14:00

Part no. 9348361

FEM Module BMW F20 F21 F22 F30 F32 ECU Control Unit Fuse Box 9348361

£123.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6989239

BMW 5 X3 Series E60 E61 E83 PDC Parking Ultrasonic Sensor Highland Green A11

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7650620

BMW X3 G01 SP Q DSG Module 48V Control Unit Bus Wiring Cable 765062002B

£189.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8507245-2

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

£237.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7578032-2

BMW E90 E91 N43 320i 170HP Engine ECU DME Kit CAS3 + Key 7578032 Manual

£189.95

Free delivery: Jul 14

If paid before 14:00

Part no. 5A8E799

BMW G20 Radio Multimedia Satellite Navigation Head Unit 5A8E799

£237.95

Free delivery: Jul 15 – 22

If paid before 14:00

Part no. A1729068200

Mercedes R172 Light Control Module Footwell Control Module Unit A1729068200

£66.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8572439-4

BMW F30 F31 N57N 330d 258HP Diesel Engine ECU Kit DDE 8572439 FEM Key Automatic

£180.95

Free delivery: Jul 15 – 22

If paid before 14:00

Part no. 9339192

BMW F45 F46 Battery Cable Positive Wire Lead Terminal 9339192

£28.95

Free delivery: Jul 14

If paid before 14:00

Part no. RHD-7549700-4

BMW E65 750i N62N 367HP Engine Control ECU Kit DME 7549700 Automatic

£332.95

Free delivery: Jul 14

If paid before 14:00

Part no. 5A092A0

BMW F40 F44 Head Up Display Dashboard Car System Screen RHD 8714307

£270.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8513184-2

BMW X3 F25 20dX Diesel N47N 184HP Engine Module ECU Kit DDE 8513184 Automatic

£104.95

Free delivery: Jul 15 – 22

If paid before 14:00

Part no. 8605458

Wiring BMW X1 E84 F11 N20 Engine Sensor System Module Wiring Harness 8605458

£94.95

Free delivery: Jul 15 – 22

If paid before 14:00

Part no. rhd-3420282-1

BMW X3 Series 1 E83N LCI Control Element Light Switch Black 3420282

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7522057

BMW E65 E66 730i M54 Diesel Battery Cable Starter-Base B+ 7522057

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9288002

BMW F10 PDC Rear View Backup Camera Control Module Unit ECU 9288002

£94.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8576341-7

BMW F20 F21 F30 F31 116d 316d 116HP N47N ECU Kit DDE 8576341 + Key + FEM

£142.95

Free delivery: Jul 14

If paid before 14:00

Part no. rhd-8514334

Engine Unit Bracket BMW X5 F15 X6 F16 ECU Module Box Holder Mount 8514334

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9265300

BMW 1 2 Series F20 F21 F22 F23 LCi Headlight Switch Control Element Light

£28.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8572006

BMW F01 LCI 740d N57Z 313HP Engine ECU KIT DDE 8572006 CAS4 Key Automatic

£474.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9317174-1

BMW 3 Series F30 REM Rear Electronic Module Fuse Box Control Unit V2 9317174

£47.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6808523

BMW F10 Individual Audio System Amplifier Module ECU 6808523

£949.95

Free delivery: Jul 15 – 22

If paid before 14:00

Part no. 5A67847

BMW F74 Gran Coupé Crash Impact Sensor Door Front Left Right N/O/S 5A67847

£32.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9174271

BMW F10 LCI Bluetooth Control Unit Module Bracket Holder Mount 9174271

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6949081

BMW 1 3 Series E81 E82 E88 E92 Front Seat Easy Entry Adapter Wire Cable 6949081

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8517874-10

BMW F20 F21 F30 116d 316d N47N 143HP Engine Control ECU DDE Kit 8517874 Manual

£142.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6819653

BMW X5 F15 Fuse Box Front Body Control Module ECU BCM Unit 6819653

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8648843

BMW F45 Mini F60 B38X High Voltage Accumulator Negative Ground Cable 8648843

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. 90147415

Headlight Module BMW F40 LED Headlamp Inverter Converter Control Unit 90147415

£56.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7333939

BMW F11 Control Unit Rear Tailgate Boot Lid Function Module ECU 7333939

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9470054

BMW F45 G20 G11 G12 G21 G30 G31 High Voltage Battery Box 9470054

£393.95

Free delivery: Jul 14

If paid before 14:00

Part no. 2990911

BMW X1 Series E84 Carrier Bracket Holder Control Module Unit 2990911

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9227217

BMW F12 Aerial Amplifier AMP Antenna Supression Filter Module 9227217

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9115107-1

BMW X5 Series E70 E70N LCI Wiring Set Wash Water Container Cable Loom 9115107

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 5B32771-1

BMW F40 F44 M135i M235i xDrive 306HP Engine Module ECU Kit DME 5B32771 BDC + Key

£759.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9320147

BMW F12 F13 Harman Becker Amplifier Top Module Control Unit 9320147

£664.95

Free delivery: Jul 15 – 22

If paid before 14:00

Part no. 8599277

BMW X3 G01 Fuse Box Trim Cover Panel 8599277

£28.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9389600

BMW Gran Turismo G32 Radio Aerial Antenna Amplifier AM/FM 9389600

£23.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9118262

Antenna Amplifier BMW F10 F22 F30 F32 Module Trap Circuit Control Unit 9118262

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8714367

Door Wiring Harness BMW F40 Rear Left Right Door N/O/S Wiring Loom 8714367

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6959355

BMW 5 6 Series E60 E61 E63 E64 Wiring Steering Wheel Electronic

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8573260-7

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

£379.95

Free delivery: Jul 14

If paid before 14:00

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