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 F25 20dX B47 190HP Engine Unit ECU Kit DDE 8574752 CAS4 Key Automatic

€379.95

Free delivery: Nov 12 – 13

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Part no. 9286217

BMW F31 F31 LCI Door Wiring Harness Loom Driver's Side 9286217

€61.95

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Part no. 8631725-4

BMW F22 228i N20 245HP Engine ECU Kit DDE 8631725 FEM Module + Key Lock

€569.95

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Part no. 9301523

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

€47.95

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Part no. 9218702

Rain Sensor BMW F10 F11 Light Solar Fogging Control Unit 9218702

€23.95

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Part no. 9306084

BMW F20 F21 F22 F30 F31 Front Seat Module Control Unit 9306084

€151.95

Free delivery: Nov 12 – 13

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Part no. 8582280-4

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

€47.95

Free delivery: Nov 12 – 13

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Part no. 5A207E7

BMW X3 G01 G20 G21 G30 G31 Audio Speaker Sound Amplifier Harman 5A207E7

€379.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6814609

BMW 1 3 5 Series F10 F20 F30 Bus Interface Connector Data Terminating 6814609

€23.95

Free delivery: Nov 12 – 13

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Part no. 8678870

BMW X4 F98 Rear Differential Ground Suppression Belt Wire 8678870

€32.95

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Part no. 7848838

BMW M4 F82 Smart Opener Sensor 7848838

€28.95

Free delivery: Nov 12 – 13

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Part no. 8583657

Wiring Harness BMW F20 E90 LCI Mini R56 LCI Engine Glow Plug Module 8583657

€23.95

Free delivery: Nov 12 – 13

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Part no. 8368231

BMW E46 Door Speaker Tweeter Front Left N/S 8368231

€23.95

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Part no. 6956672

BMW E63 E63N LCI Centre Console Switch Centre DTC PDC 6956672

€23.95

Free delivery: Nov 12 – 13

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Part no. 9231518

BMW F31 Antenna Aerial Diversity Trap Circuit 9231518

€23.95

Free delivery: Nov 12 – 13

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Part no. 7220891

BMW E91 LCI Control Unit Module Support Plate Bracket Carrier Holder 7220891

€23.95

Free delivery: Nov 12 – 13

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

€317.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5A28AF0

BMW F36 Gran Coupe Radio Player Head Unit CD DVD 5A28AF0

€840.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6824110

BMW 3 F30 LCI 330e Hybrid High Voltage Battery Wiring Loom Harness 6821420

€94.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7410838-1

BMW X3 F25 Front Headlight Lamp Light Wiring Harness Cable Right O/S 7410838

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9356156

External Ignition Base BMW F20 F30 F32 F33 Power Terminal Distribution 9356156

€23.95

Free delivery: Nov 12 – 13

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Part no. 7789755

BMW 5 6 Series E60 E61 E63 E64 LCI Cable Starter-Base B 7789755

€23.95

Free delivery: Nov 12 – 13

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Part no. 8616814

BMW X5 F15 Cooler High Voltage Battery Lower 8616814

€66.95

Free delivery: Nov 12 – 13

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Part no. 6933264

BMW E65 E66 Control Unit Door Rear Passenger Side 6933264

€23.95

Free delivery: Nov 12 – 13

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Part no. 8606058

BMW F30 330e Hybrid High Voltage Battery Module Screw Bolt 8606058 SET

€23.95

Free delivery: Nov 12 – 13

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Part no. 8594489

BMW X1 F48 Mini F55 F56 F57 Battery Cable Starter-Base B+ 8594489

€23.95

Free delivery: Nov 12 – 13

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Part no. 7544892

BMW 3 F30 LCI 330e B48X HV Accumulator Battery Negative Cable Ground 7544892

€23.95

Free delivery: Nov 12 – 13

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Part no. 3415607

BMW X3 E83 LCI Petrol N52N Cable Alternator Starter Base B+ 3415607

€23.95

Free delivery: Nov 12 – 13

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Part no. 7541779

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

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7928582

BMW G01 G02 G05 G20 G21 G22 G30 G31 G32 DAB Audio Sound Amplifier Module 7928582

€165.95

Free delivery: Nov 12 – 13

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Part no. 8506444

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

€113.95

Free delivery: Nov 12 – 13

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Part no. 7379674-2

BMW F01 F02 LCI Front Headlight Wiring Harness Cable Plug Right O/S 7379674

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7567321-1

BMW 1 3 Series E81 E87 LCI E90 116i 316i N45N ECU Kit DME 7567321 + CAS3 + Key

€408.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9339825

BMW G11 G30 G31 Power Supply Module High Voltage Battery Terminal Point 9339825

€23.95

Free delivery: Nov 12 – 13

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Part no. 6957109

BMW 3 Series E92 Front Right O/S Driver Side Door Wire Wiring Loom 6957109

€23.95

Free delivery: Nov 12 – 13

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Part no. 7843332

Engine Wiring BMW F10 M5 F12 M6 Loom Harness Injection Valve Cyl. 5-8 7843332

€66.95

Free delivery: Nov 12 – 13

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Part no. 9244421

BMW X5 E70 LCI PDC Parking Sensor Wiring Loom Harness Cable Front 9244421

€61.95

Free delivery: Nov 12 – 13

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Part no. 8634166

Alternator BMW G20 G30 G14 B47 B48 B58 B46 Alternator 180A 14V 8634166

€189.95

Free delivery: Nov 12 – 13

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Part no. 8843416

BMW G30 Battery Cell Module Supervision Circuit Control Unit 8843416

€23.95

Free delivery: Nov 12 – 13

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Part no. 9124585-SED

BMW E87 E90 PDC Parking Sensors Ultrasonic Set x2 Sedonarot - A79 9124585

€23.95

Free delivery: Nov 12 – 13

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Part no. 9797875

BMW U06 X1 U11 High-Voltage Battery Terminal Strip Bracket Mount Support 9797875

€23.95

Free delivery: Nov 12 – 13

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Part no. 7809680

Engine Wiring BMW F10 F11 N57 N57S Loom Cable Harness Injector Module 7809680

€32.95

Free delivery: Nov 12 – 13

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Part no. 9313616

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

€56.95

Free delivery: Nov 12 – 13

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Part no. 8636596

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

€23.95

Free delivery: Nov 12 – 13

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Part no. 9264688

BMW F20 PDC Parking Sensor Wiring Harness Cable Loom 9264688

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8512498-5

BMW E84 E90 LCI 20dX 320xd N47 177HP ECU Kit DDE 8512498 CAS3 + Key Manual

€151.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6932644-1

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

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8486839-3

BMW F20 LCI 118i B38 136HP Engine ECU Kit DME 8662411 + FEM + Key Automatic

€469.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9305736

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

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9325908

BMW F36 Gran Coupe Door Wiring Harness Cable Loom Front Passenger Side 9325908

€42.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9222071

BMW F07 BCM Body Control Module Unit Controller 9222071

€47.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7795779

BMW 5 Series E60 E61 Cable Alternator Starter Base B 520d Diesel M47N2 7795779

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9259205

BMW F10 Seat Wire Harness Loom Cable Front Right O/S 9259205

€47.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8589170

Starter Harness BMW X3 G01 X4 G02 30dX 40dX B57 Cable Base B+ Loom 8589170

€61.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7839665

BMW E90 E92 E93 LCI M3 S65 Cable Alternator Starter Wiring 7839665

€75.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8605454

Engine Wiring BMW F10 F21 F30 LCI F36 N20 Loom Module Harness Cable 8605454

€51.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8585380

BMW X3 F25 X4 F25 30dX N57N 258HP Engine Control ECU DDE 8585380 Automatic

€284.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 1439559

BMW X5 Series E53 Battery Cable Plus Pole 1439559

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8570934-1

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

€237.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9196935

Seat Module BMW X1 E84 E87 E90 E91 Seating Control Unit ECU 9196935

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 1438941

BMW X5 E53 Ground Cable Alternator Petrol 1438941

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9188877

BMW F01 F02 F03 F10 F11 Steering Column Adjuster Switch 9188877

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5B5D976

BMW F74 Gran Coupé Engine Control Unit Module ECU 220i B38N 170HP 5B5D976 Manual

€341.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5B44D47

BMW F40 F44 F70 G20 G21 G22 Audio Sound Amplifier Module 5B44D47

€227.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8612578

BMW F45 HV Accumulator Battery Negative Ground Cable Wiring Plug 8612578

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9151517

BMW E61 Touring Body Control Module ECU Unit E6X KBM High 9151517

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8714367

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

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8580061

BMW F40 F48 Mini F55 F56 Battery Starter Cable Wiring Loom B47B B47D 8580061

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6934021

BMW 7 Series E65 E66 Front Left Right Door N/O/S Wiring Loom Harness 6920291

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9313636

BMW F30 LCI Cable Harness Loom Front Door Wiring Left N/S 9313636

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8792845

BMW X3 G01 Door Wire Loom Driver Side Front Right O/S 8792845

€42.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8577625-4

BMW F20 F21 116d N47N 116HP Engine Control Unit DDE ECU Kit 8577625 Manual

€222.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9350002

BMW F01 F07 F10 F11 X3 F25 Control Unit Air Module ECU Unit Continental 9350002

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4869810-4

BMW E82 E88 Taillight Tail Light Lamp Right Rear O/S Wire Harness Loom 7285642

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8621019

BMW G01 G11 G12 G20 G30 Battery Cell Module Connector Harness Loom Cable 8621019

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9847136

BMW X1 U11 High-Voltage Battery Terminal Strip Insulation Plate Support 9847136

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8589168

Alternator Harness BMW X3 G01 X4 G02 30dX 40dX B57 Cable Base B+ Loom 8589168

€56.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8518268

BMW E90 E91 LCI N47N 318d Diesel Engine Control Unit DDE ECU Manual 8518268

€66.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8612582

BMW F45 Mini F60 HV Accumulator Battery Positive B+ Cable 8612582

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6949229

Mini R52 Cabrio Convertible DWA Rear Door Alarm System Module Unit 6949229

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7645962

BMW X5 F15 Trim Cover Tray High Voltage Battery 7645962

€75.95

Free delivery: Nov 10 – 13

If paid before 14:00

Part no. 6928350

BMW E87 LCI Roof Headliner Interior Lighting Wiring Loom Harness 6928350

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4869809-3

BMW E82 E88 Rear Lamp Taillight Tail Light Left N/S Harness Wire Loom 7285641

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6925903

BMW Z4 Series E85 Rear Bumper PDC Cables Wiring Loom Set 6925903

€37.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6926433

BMW 1 3 Series E87 E90 E91 Mini R56 R57 Seat Control Unit Module Heating 6926433

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8639595-9

BMW F30 320iX N20 163HP Engine Unit ECU Kit DME 8639595 FEM + Key Automatic

€474.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6934030

BMW 7 Series E65 E66 Wiring Loom Harness Right O/S Front Door 6934028

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9226880

BMW F20 F21 Radio Aerial Antenna Amplifier AM/FM Control Unit Module 9226880

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8369504

BMW 5 E39 Saloon Radio Signal Antenna Amplifier Coaxial Cable 8369504

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8612583

BMW F45 Mini F60 HV Accumulator Battery Positive B+ Cable Ground 8612583

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8595865

Wiring BMW F32 F33 F36 LCI N57Z Engine Gearbox Module Wiring Harness 8595865

€89.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9264976

BMW X5 E70 Seat Control Unit Module Front Left ECU 9264976

€66.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8579480-1

BMW F20 120d F30 320d F10 520d N47N 184HP Engine Control Unit DDE 8579480 Manual

€94.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9286219

BMW 3 Series F30 F31 Front Door Wiring Loom Cable Harness Driver's Side 9286219

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9343766

BMW F30 F31 F32 Top Hifi Audio Sound Amplifier Harman Kardon 9343766

€569.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8482365

BMW G20 Installation Cable Wiring Loom 8482365

€37.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6933968

BMW Z4 Series E85 Wiring Drivers Side Loom Front Door Cables Right O/S 6933968

€43.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8605530

Engine Unit Bracket BMW G30 G31 G11 G15 ECU Module Holder Bracket Mount 8605530

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6751504

Module Holder BMW X5 E53 Rear Tyre Pressure Control Module Mount Bracket 6751504

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

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