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 X5 E53 Rear Light Trunk Lid Boot Tailgate Lamp Wiring Cable Left N/S 6916913

€23.95

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BMW E60 E61 Front Seat Adjustment Switch Right O/S 6926962 6930048

€23.95

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

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€142.95

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BMW X5 E53 Power Distribution Fusebox Cover Fuse Box 8380407

€23.95

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BMW E65 E66 E67 Control Unit Door Front Passenger Side Module ECU 6958446

€23.95

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BMW F01 E70 Alternator Generator 180A 14V Unit Elstock 28-6744 Diesel 7807187

€108.95

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BMW F20 F21 Body Control Module BCM FEM Unit 1.6 Diesel N47D16A 9292647

€104.95

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BMW F20 F21 114d Diesel N47N 95HP Engine Control ECU Kit DDE 8573260 Manual

€180.95

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

€23.95

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BMW E93 Convertible Wiring Loom Front Door Cables Cable Passenger Side 9186668

€23.95

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BMW i3 I01 94Ah Rex Hybrid Basic Control Unit Module ECU 8489325

€28.95

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BMW 3 5 Series F10 F11 F30 F31 Air Control Unit Module 9253637 65779253637

€23.95

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BMW F20 F21 F30 F31 LCI Alternator Generator 14V 180A 8645329

€32.95

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BMW X3 F25 Dummy Grommet Electrical Wiring Cable Harness Fastener 7601354

€23.95

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BMW F40 F44 Positive Battery Terminal Fuse Box 6822570

€23.95

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BMW G11 Door Wiring Harness Rear Left Right Door N/O/S Wiring Loom 9372556

€42.95

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BMW X5 E70 LCI ACC Active Cruise Control Module Unit Sensor 6793927

€61.95

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BMW 3 F30 LCI 330e B48X Control Unit Bracket Holder Mount 8615581

€56.95

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BMW G20 G22 G23 G26 G42 G87 Negative Battery Earth Cable Wiring 9894330

€32.95

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BMW E93 Radio Head Unit Comand CD DVD Player Changer 9218331

€617.95

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BMW 1 3 SERIES E84 E90 E91 E92 SUCTION PIPE HOSE AIR CON EVAPORATOR COMPRESSOR

€23.95

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BMW 1 Series E81 E82 E87 LCI E88 N47S 123d ECU Kit DDE CAS 3 Key 7810002 Manual

€284.95

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BMW F44 Gran Coupe Door Wiring Harness Rear Door Left Right N/O/S 8727987

€47.95

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BMW X3 F25 Central Gateway Control Unit Module ECU 9243213

€28.95

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Fuse Carrier BMW F40 Mini F55 F56 F57 F60 Distribution Box 9270355

€23.95

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BMW X5 E53 Headlight Headlamp Lamp Front Left N/S Plug Wiring Cable 7164445

€23.95

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BMW F06 F12 F13 640d N57 313HP Engine ECU DDE Kit CAS4 + Key 8573574 Automatic

€284.95

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BMW 2 F46 Gran Tourer Lamp Tillight Plug Socket Wiring Cable Left N/S 7329789

€23.95

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BMW E60 E61 E87 LCI E81 E82 X1 E84 E90 E91 N47 Diesel Starter Motor 7798006

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BMW E90 E92 E93 M3 S65 Engine Starter Motor 7843526

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BMW E70 Door Wiring Front Passenger Door Loom Cables Harness 9229847

€23.95

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BMW U06 U10 U11 Front Power Distributor Box Cover Lid Housing 8720913

€23.95

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

€80.95

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Battery Cable BMW X5 F15 X6 F16 Alternator Starter Wiring Loom Harness 8516122

€28.95

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BMW i3 I01 Body Domain Comfort Control Unit BDC Module ECU 8736682

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BMW F01 F01N F02 F10 Tow Bar Trailer Towing Control Module Unit AHM 4 9229899

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BMW F20 F21 116d ed Diesel N47N 116HP ECU Engine Control Unit DDE 8570934 Manual

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BMW F10 LCI F20 F21 F30 F31 DAB Bluetooth Head Control Unit Module Basic 6822586

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BMW E90 E91 LCI 325i N53 218HP Engine ECU Kit DME 7592080 CAS3 Key Automatic

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BMW F44 Body Control Module BDC ECU 5A3FFB5

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BMW X3 F25 30dX N57N Engine Module Injector Wiring Cable Loom Harness 8513559

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BMW F01 Front Seat Control Unit Module ECU Left Temic 9221462

€23.95

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BMW X5 Series E53 Widescreen Motorway and Trunk Road Unit Module 167859

€23.95

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

€127.95

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BMW X1 U11 High-Voltage Battery Module Connector Unit 9797877

€56.95

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BMW X5 F15 Wiring Holder Electrical Cable Loom Cover Tunnel 40eX Hybrid 9316000

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BMW F10 LCI Bluetooth Control Unit Module Bracket Holder Mount 9174271

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BMW F15 F16 Negative Battery Ground Minus Earth Cable Harness 7643896

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BMW F74 Rear Door Wiring Loom Harness Cable Left Right N/O/S 5A81BC5

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BMW 5 Series E60 M5 Battery holder Hold Down Strap Bracket 7896848 6938434

€23.95

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BMW U06 X1 U11Battery Air Guide Plate Cover Trim Housing 8849403

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BMW F20 M435i N55 326HP Engine Control Unit ECU DME 8626762 Automatic

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

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BMW F01 F01N F02 F10 AHK Towing Hitch Tow Bar Control Module Unit ECU 6796905

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BMW F01 F02 TV Tuner Control Unit Module ECU 9286024

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BMW X1 E84 Display Screen Monitor On-Board CID TV Navigation System 8,8" 9289582

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

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BMW X3 F25 Front Distribution Box Fuse Box Power Control Unit 9315150

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BMW X1 U11 High-Voltage Battery Module Connector 8844294

€132.95

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€213.95

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BMW F22 F30 F32 N20 184HP Engine Control ECU Kit DME 8631725 Manual

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BMW F20 F30 F32 Harman Kardon Audio Amplifier Booster Module Unit 5A081D5

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BMW E36 Z4 E85 Z3 Module Radar Burglar Alarm Sensor 6944875

€23.95

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BMW M5 F90 G11 G12 Power Distribution Relay Fuse Box Make Contact 9367693

€23.95

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

€23.95

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BMW F30 320i N20 Engine Control Unit ECU DME 2.0 Petrol 184HP Manual 8639595 Kit

€332.95

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BMW X2 F39 Antenna Amplifier AMP Control Module Unit 21367510

€23.95

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BMW F11 Touring Control Unit Rear Tailgate Boot Lid Function Module 7266666

€23.95

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Airbag Module BMW E65 E66 Airbag A-Pillar Sensor Right O/S Control Unit 6960220

€23.95

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BMW F30 LCI 335dX N57Z Engine Gearbox Module Wiring Cable Loom Harness 8578504

€28.95

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

€23.95

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BMW 1 3 F20 F21 F30 F31 Driver Side Seat Wiring Loom Cable Harness 9339339

€23.95

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BMW F07 GT Central Gateway Module ECU Control Unit Lear ZGW-01 High 9237968

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BMW F74 Gran Coupé Radio Audio Remote Control Receiver 7928690

€23.95

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BMW X5 Series E70 LCI Ventilation Grommet Unit Box Cover 7798875

€23.95

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BMW 5 6 Series E60 E61 E63 E64 1 Power Distribution Fuse Relay Box Rear 6956505

€23.95

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BMW G20 LCI Fuse Box Control Module Unit 5A4CFA9

€165.95

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BMW F20 LCI 118i B38 136HP Engine Control ECU Kit DME 8662411 Manual

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BMW 1 Series F20 Telematics Control Unit Module Bluetooth 9371790

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€56.95

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BMW E65 E66 Seat Control Module Unit ECU 9134633 9184560

€85.95

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€51.95

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€26.95

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Peugeot Boxer Bluetooth Aerial Antenna Control Unit Module Mopar 1380701080

€47.95

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€42.95

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BMW i3 I01 Electric Gearbox Gear Shifting Actuator Module Unit 7645837

€113.95

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BMW F20 F21 F30 F31 F32 Battery Holder Bracket Supporting Rail 7612860

€23.95

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BMW E46 E39 E60 E81 E87 E90 E91 F10 F20 F30 Relay Make Contact Sky Blue 6915327

€23.95

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BMW 4 Series F32 F32N LCI Cable Loom Door Driver's Side Wiring Harness 9337200

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BMW F20 F21 F30 LCI B47 Wiring Loom Harness Engine Module 8490136

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BMW G20 G21 G21 LCI Door Wiring Harness Loom Front Driver's Side 8716575

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