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 F30 F31 F80 M3 Front Passenger Wiring Loom Harness Cables 9313638

£37.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8510829-4

BMW E90 E91 LCI N47N 320ed 320d ed 163HP ECU KIT DDE 8510829 CAS3 + Key Manual

£75.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8654632

BMW F40 F44 F45 Mini Cooper F55 F56 Engine Starter Motor Positive Battery Cable

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 5A0B497

Telematics Module BMW F40 F44 G20 Telephone Control Unit ATM ECE 4G 5A0B497

£170.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8582279-3

BMW F20 F30 F32 120d 320d 420d Diesel N47N 184HP ECU Kit DDE 8582279 Keys FEM

£189.95

Free delivery: Jul 15 – 22

If paid before 14:00

Part no. 6805061

BMW F45 F46 Mini F55 F56 F57 Parking Assistant PDC Control Unit Module 6805061

£47.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9220695

BMW X5 X6 E70 E71 Control Unit Module Top Rear Side View Camera 9220695

£56.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9314234

BMW F20 F21 F22 F30 F31 F32 Body Control Module Unit FEM ECU LR01 9314234

£94.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6820234

Air Conditioning Module BMW F20 F21 F30 F31 A/C Control Unit 6820234

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. rhd-7564402

BMW E90 320si N45 Petrol Engine Wiring Loom Cable Harness 7564402

£75.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7799854-1

BMW 1 3 Series E87 E90 M47N2 118d 318d 122HP ECU KIT DDE + CAS2 + Key 7799854

£142.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7636937

Ping Sensor BMW F20 F31 LCI Mini F55 F56 Engine Block Knock Sensor 7636937

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8645514

BMW X3 F25 X5 F15 X6 F16 Integrated Power Distribution Supply Module Box 8645514

£113.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6960381

BMW 5 Series E60 E61 Airbag ECU Control Unit Gateway Module 6960381

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9350003

Safety Control Unit BMW F01 LCI F07 F10 F11 F25 Air Module Bag ECU 9350003

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7374942

BMW F20 F21 F30 F31 Fuel Pump Control Unit Module 7374942

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9186170

BMW 5 6 Series E60 E61 LCI E63 E64 Body Gateway Module ECU Control Unit 9186170

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9259467

Fuse Box BMW X3 F25 Power Distribution Control Unit Module Front 9259467

£37.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7805349-2

BMW X3 E83 LCI M47N2 2.0d 150HP ECU Kit DDE EWS4 Key 7805349 Manual

£237.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6850955

Brake Control Unit BMW F10 F11 X3 F25 Parking Brake Handbrake Module EMF 6850955

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9181455

BMW X1 Series E84 Antenna Aerial Noise Suppression Filter 9181455

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 4030026

BMW Z4 E85 Xenon Headlight Resistor Ballast Relay Module Unit 4030026

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. 3427751

BMW X3 Series E83 Wiring Passenger Side Loom Front Door Cables 3427751

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6982397

BMW E81 E87 E90 E91 E92 Parking Control Module Unit PDC 6982397

£113.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9381086

Amplifier BMW F06 GT F10 F13 F15 Audi Control Unit Active Sound Design 9381086

£37.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6913824

BMW 7 Series E65 E66 Front Bumper PDC Loom Cables Wiring Set 6913824

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9286157

BMW X3 F25 Light Module Control Footwell Lightning ECU Unit FRM3 9286157

£28.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8518269-1

BMW 3 Series E90 E91 LCI N47N 320d ed 163HP ECU KIT DDE CAS 3 Key 8518269 Manual

£94.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6955927

BMW 3 X1 Series E84 E91 E91N LCI Control Unit Sliding Lifting Roof 6955927

£28.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9134708

BMW E81 E87 E90 E92 Comfort Access Passive Go Control Unit Module 6987184

£75.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9273666

BMW F33 F83 M4 Convertible Rear Antenna Aerial Amplifier AM/FM 9273666

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7191362

BMW 3 E93 Cable Wiring Loom Harness Hydraulic Pump 7120204 7191362

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. rhd-7804974

BMW 1 3 Series E81 E87 E90 Wiring Loom Harness Gearbox Diesel N47 7804974

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8512411-1

BMW X5 E70 LCI 40dX N57S 306HP Engine ECU KIT DDE 8512411 CAS3 Key Automatic

£303.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8516753-1

BMW F01 730d F07 530d N57 245HP Engine Unit ECU Kit DDE 8516753 Automatic

£151.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6956744-2

BMW E81 E82 E87 E88 E90 E91 Ultrasonic Sensor SET X4 PDC Sydney Blue 6956744

£23.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6970889

BMW 7 Series E65 E66 E67 Sensor Vehicle Centre Airbag 6970889

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. rhd-9243632

BMW X3 F25 Fan Heater Blower Unit Motor Wiring Cable Harness Loom 9243632

£28.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6928658

BMW E87 LCI Front Door Wiring Loom Drivers Side 6928658

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7273666

BMW F30 F31 F32 Rear Tailgate Smart Opener Upper Antenna 7273666

£23.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8639583

BMW F20 F21 F30 LCI M140i 340i B58 Wiring Harness Motor Sensorsystem Module

£170.95

Free delivery: Jul 15 – 22

If paid before 14:00

Part no. 7306797

BMW F30 F31 F32 Tailgate Smart Opener Control Unit Module 7306797

£37.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9166666

BMW X5 E70 Footwell Light Module Control Unit ECU FRM II AHL Lear 9166666

£99.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9323793

BMW X3 F25 Sat Navi Stereo Radio Audio Head Unit CD Player 9323793

£37.95

Free delivery: Jul 14

If paid before 14:00

Part no. 4154935

BMW X3 Z4 E83 E85 E86 Radio Business CD Player 65124154935 4154935

£94.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7565300-14

BMW E87 E90 E91 120i 320i N46 Engine Control Unit ECU DME 7565300 Manual

£113.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8366625

BMW 259 259R 259 R22 Connection Plug Relay Pink Tyco 8366625

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8631656

BMW F20 F21 F30 LCI M140i 340i Wiring Harness Motor Sensor System Module 8631656

£132.95

Free delivery: Jul 15 – 22

If paid before 14:00

Part no. 6828085

PDC Module BMW F15 F16 F25 F26 I01 I12 Parking Distance Sensor Unit 6828085

£32.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7524118

BMW Z4 E85 M54 Roadster Wiring Loom Harness Engine Ignition Module

£28.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6983538

BMW E60 Light Control Unit Module LM E6X MAN LWR Lear 6983538

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6932644

BMW 3 5 Series E60 E71 E90 E92 Suppression Filter Aerial Module Antenna 6932644

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6939711

BMW 5 6 Series E60 E61 E63 Driver's Side Door Airbag Control Unit Module

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8507202-1

BMW E90 E91 LCI 318d N47N 143HP ECU Kit DDE 8507202 CAS3 Key Manual

£123.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9118108

BMW 1 Series E81 E82 Wiring Set Door Co-driver 9118109

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8739659

Tailgate Control Module BMW X5 F15 F31 X2 F39 F45 Mini F60 Boot Trunk 8739659

£28.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8582802

Control Unit BMW F10 F30 F31 330d 530d Diesel N57N Engine ECU DDE 8582802

£161.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7191718

BMW Z4 Series E89 Roadster Cabrio Horn High Tone 7191718

£23.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7273667

BMW F30 F31 F32 Rear Tailgate Smart Opener Lower Antenna 7273667

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9217004-1

BMW X5 X6 E70 E71 Positive Battery Cable Wiring Plus Pole 9217004

£32.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8686085-1

BMW F30 LCI F15 F45 G30 Mini F60 Accumulator Battery Unit High Voltage 8612163

£189.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7823310

BMW 3 Series F30 F31 330d 330dX N57N Diesel Alternator Starter Cable B+ 7823310

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6998485

Air Module BMW F45 X1 F48 Mini F54 F55 F56 Air Module Control Unit ECU 6998485

£75.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8510592-4

BMW E81 E87 E90 LCI 118d 318d N47 143HP ECU Kit DDE 8510592 CAS3 Key Manual

£94.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9343687

BMW F01 LCI F07 F10 F11 F25 Safety Control Unit Air Module Bag ECU 9343687

£37.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6850846

BMW F10 F11 F12 Parking Brake Unit Electric Control Module EMF 6850846

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6906347-1

BMW X5 E53 Rear Bumper PDC Plug Socket Loom Cable 6906347

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8509036-3

BMW X5 E70 30sd M57N2 286HP Engine ECU Unit DDE 8509036 Automatic

£474.95

Free delivery: Jul 15 – 22

If paid before 14:00

Part no. 9390018

Audio Amplifier BMW F20 F21 LCI Mini F55 F56 Top Hifi Harman Kardon Unit 9390018

£275.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8636054

BMW F20 F30 LCI 120i 320i 330i B48 Engine Wiring Cable Loom Harness 8636054

£142.95

Free delivery: Jul 15 – 22

If paid before 14:00

Part no. rhd-8507876-1

BMW 3 Series E90 E91 E92 E93 LCI 320d N47N Engine Wiring Loom Harness Gearbox

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7835548

BMW 5 6 Series E60 E61 LCI E63 E64 M5 M6 Earth Cable Starter Battery 7835548

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6974373-1

BMW E81 E84 E87 E88 E90 Ultra Sonic Module Alarm System 9149671

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6938226-1

BMW E90 E90N E91 E91N LCI M3 Wiring loom rear door left right 6938225

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9170719

Navigation Head Unit BMW E87 E90 Professional CCC CD Player Controller 9170719

£332.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9868383

BMW F20 F21 F30 F31 F32 Body Control Comfort Module Unit FEM ECU LR01 9868383

£75.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9383709

BMW X5 F15 X6 F16 M Sport Fuse Box Body Control Module BCM ECU Unit 9383709

£118.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6935600

BMW E81 E82 E87 E90 E91 PDC Parking Ultrasonic Sensor Sonora Metallic 6935600

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9131779

BMW E87 ECU Body Control Module L2 JBBFE PL2 61359131779 9131779

£23.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6885215

BMW F90 M5 F91 M8 G05 G11 G30 Steering Column Control Unit Module 6885215

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9305736

BMW X1 E84 ECU Body Control Module Junction Box H2 PL2RR JBBFE IIIR 9305736

£51.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6858547

BMW X3 F25 ICM Control Unit Air Module SRS ECU 6858547

£37.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8518269-7

BMW E90 E91 LCI N47N 320d 184HP Engine ECU KIT DDE 8518269 CAS3 Key Automatic

£132.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9259425-1

Positive Battery Cable BMW F30 F31 F80 M3 F82 M4 Plus Pole Power Red 9259425

£28.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9335298

BMW 1 Series F20 Front Left Door N/S Wiring Loom Harness Cables 9215715

£13.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9224959

Dashboard Monitor BMW X5 X6 E70 E71 Onboard Display Screen 8,8" 9224959

£89.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7552176-8

BMW Z4 E85 2.0i N46 150HP Engine Control Unit ECU DME 7552176 Manual Gearbox

£142.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6859720

BMW 5 6 F07 F10 F11 F12 VDC Rear Suspension Level Control Unit Module 6859720

£75.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8518269-8

BMW E90 E91 LCI N47N 320d 184HP ECU Engine Control Unit DDE 8518269 Automatic

£23.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8570676

BMW F30 F32 LCI N57N N57Z Diesel Engine Alternator Generator 230A Valeo 8570675

£42.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8580308-1

BMW X1 E84 20dX Diesel N47N Engine Control Unit ECU Kit DDE 8580308 CAS3 Key

£161.95

Free delivery: Jul 15 – 22

If paid before 14:00

Part no. 9166782

BMW X5 X6 Series E70 E71 Board Monitor Sat Nav System Screen 8,8" 9166782

£94.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9868386

BMW F20 F21 F22 F30 F32 Front Electronic Module Control Unit FEM 9868386

£132.95

Free delivery: Jul 14

If paid before 14:00

Part no. 9832609

Audio Amplifier BMW F40 G05 G20 G30 Top Hifi Harman Kardon Control Unit 9832609

£241.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8518269

BMW E90 E91 LCI N47N 320d 184HP ECU Engine Control Unit DDE 8518269 Manual

£18.95

Free delivery: Jul 14

If paid before 14:00

Part no. 7622980

Wiring Harness BMW F20 F21 F30 Motor Sensor System Module 2 7622980

£28.95

Free delivery: Jul 14

If paid before 14:00

Part no. 8576341-1

BMW F20 F30 F31 116d 316d 116HP N47N Engine ECU Control Unit DDE 8576341 Manual

£56.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6855990

BMW X3 F25 ICM Control Unit Air Bag Module SRS Safety ECU 6855990

£123.95

Free delivery: Jul 14

If paid before 14:00

Part no. 6867170

Air Module BMW F20 F21 F30 F31 F32 F36 ECU ICM Plus SRS Control Unit 6867170

£47.95

Free delivery: Jul 14

If paid before 14:00

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