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 E87 E90 LCI N47 118d 318d Diesel Engine Control Unit ECU DDE Manual Gearbox

€61.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7404880-1

BMW F20 F21 F30 F31 Fuel Pump Module Control Unit ECU 7404880

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5A67847

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

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9224686

BMW Mini Clubman R55 Cable Wiring Loom Splitdoor Door Rear Right O/S 9224424

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9496818

BMW G60 G61 G68 U10 U11 U12 Impact Crash Accelerating Sensor 9496818

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 3417586

Electronic Box BMW X3 E83 LCI 2.5si 3.0si N52N Control Unit Mount Holder 3417586

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8482361

BMW G20 G21 Engine Injector Wiring Loom Harness Cable B48X 8482362

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7352192

BMW F20 CLI F87 LCI BCM Body Control Module FEM Control Unit 5A7FB58

€165.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7520912

BMW E60 E61 E63 E64 LCI Cover Electronic Box 7520912

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9285275

BMW X3 F25 X4 F26 Bus Interface 60 Ohm Control Module Unit ECU 9285275

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9335298

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

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8624341

BMW F30 LCI Fuse Box Fusebox Holder Support Mount Bracket Carrier 8624341

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6994419

BMW G20 Power Distribution Fusebox Cover Fuse Box Terminal 6994419

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8572439-4

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

€213.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9253186

BMW X1 E84 Audio Amplifier Booster Sound Control Unit Module 65152990908

€284.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9359037

BMW F46 Gran Tourer 3rd Row Seat Wiring Harness Loom 9359037

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6929726

BMW E65 E66 Front Seat Wiring Harness Loom Cable Left N/S 6929726

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9167237

BMW E92 F32 E61 Seat Belt Module Control Unit LCPA ECU 9167237

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7419610-1

BMW F30 F31 LCI Headlight LED Module Insert Light Source Control Unit 7419610

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8577835-4

BMW F31 N57D30A Engine Control Unit ECU 3.0 Diesel 258HP Automatic 8577835 Set

€189.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8044503

BMW F06 F10 F12 F13 Fuel Injectors Wiring Loom Harness Cable 8044503

€66.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9329345

BMW F20 F21 F30 F31 Bluetooth Telephone Control Module Unit 9329345

€113.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6933268

BMW 7 Series E65 E66 Control Unit Door Rear Passenger Side 6933268

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9262215

BMW F01 Front Bumper Parking Sensor PDC Wiring Loom Harness Cable 9262215

€80.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6911584

BMW E65 E66 Steering Wheel MFL Phone Switch Buttons Left N/S 6911584

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9160558

BMW 5 Series E60 E60N E61 E61N LCI Airbag ECU Control Unit Module

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. BM380-SCREEN

BMW F20 F36 Gran Coupé Radio Multimedia Screen Display Unit 74558010

€113.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9337180

BMW F32 Interior Light Courtesy Wiring Cable Loom Adapter 9337180

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9261579-TAN

BMW F31 Front PDC Parking Sensor Tanzanite Blue Metallic - X10 9261579

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9117801

Battery Bracket BMW X3 G01 X4 G02 Rear Holder Mount Carrier Support 9117801

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9387561

Head Unit BMW I3 I8 Mini F56 Navigation Sat Nav DAB High Control Module 9387561

€227.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9312764-1

BMW F10 LCI Body Control Module ECU Junction Box PL6 JBBFE III V2 9312764

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 1439740

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

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6933267

BMW 7 Series E65 E66 E67 Control Unit Door Front Passenger Side 6933267

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9340989

BMW F21 F22 F23 Door Wiring Loom Harness Front Driver's Side 9340968

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6059035

BMW F10 F11 F20 F21 F30 F31 Hands Free Telephone Microphone Unit 9263744

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9185534

BMW E81 E82 E87 E88 F20 Radio Player Navigation Head Unit Control Module 9185534

€256.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8379766

BMW E65 E90 E91 E92 E93 Auto Boot Release Switch Tailgate 8379766

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6933270

BMW 7 Series E65 E66 E67 Control Unit Door Rear Driver Side 6933270

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6942550

BMW E90 Front Seat Wire Cable Harness Wiring Loom 6942550

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9341546

BMW F40 G20 G30 Accelerating Sensor 9341546

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6929556

BMW E65 E66 Driver's Seat Air Module Sensor Control Unit Module 6929556

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7789754

BMW E60 E61 Starter Motor Positive Battery Cable Wiring 7789754

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9341014

BMW F21 F22 F23 Front Door Wiring Loom Harness Passenger Side 9340993

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5B7AB39

BMW F74 Under Floor Base Subwoofer Bass Central Speaker Cover Left N/S 5B7AB39

€213.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5A57781-1

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

€322.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6981142

Window Lifter Motor BMW E60 E61 Drive Actuator Front Right O/S 6981142

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9131734

BMW E81 E82 E88 E92 Passenger Seat Wiring Memory Loom Harness Cable 9131732

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9855635

BMW F70 F74 U06 X2 U10 X1 U11 Battery Tray Pad Support Holder 9855635

€75.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6951855

BMW 6 E64 E64N LCI Convertible Suppression Filter Aerial Module Antenna 6951855

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7796637-1

BMW 5 Series E60 E61 530d M57N 218HP ECU Kit DDE 7796637 + CAS2 + Key Automatic

€170.95

Free delivery: Nov 12 – 13

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

€113.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7526784-3

BMW E92 ECU Engine Control Unit Module 3.0 306Hp Petrol Automatic 7526784

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9328591

BMW X6 F16 Boot Trunk Lid Tailgate Wiring Loom Harness Cable 9328591

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8373700-1

BMW E60 E63 E87 E90 E91 2X Relay Make Contact White Green Set 8373700

€24.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9128569-1

BMW 1 Series E81 E82 E87 LCI E88 Wiring Harness Air Valve Air Flap 9128564

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6974372

BMW 7 Series 7 E65 E66 E67 Ultra Sonic Module

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6925715

BMW 1 3 Series E81 E82 E87 E90 E91 E92 Positive Battery Terminal Cover 6925715

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6938217

BMW 3 Series E90 E91 Wiring Loom Cable Front Door Left Passenger Side 6938217

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6929555

BMW 7 Series E65 E66 E67 Sensor Front Left Door N/S 6929555

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9257102

BMW F01 F02 F03 F04 Front Seat Control Unit Module Memory 9257102

€37.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8589158

Battery Cable BMW G01 G02 B47B B47D Alternator Base B+ Lead 8589158

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7519051

BMW 7 Series E65 E66 E67 Electric valve 735i 745i 735Li 745Li 745LiS

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6929554

BMW E65 E66 Door Air Module Sensor Control Unit Front Right O/S 6929554

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9320147

BMW F12 F13 Harman Becker Amplifier Top Module Control Unit 9320147

€788.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9894708

BMW F70 F74 U06 X1 U11 ECU Engine Holder Box Mount Support 9894708

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9355559

BMW G30 G31 LCI G11 G12 Positive Battery Terminal Harness Wiring Cable 9355559

€51.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8679681

BMW F45 i3 i01 Mini F60 High Voltage Connector 8679681

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7165563

BMW 5 E60 E61 Headlight Headlamp Front Left N/S Lamp Plug Input Connector

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8509910

BMW X3 F25 X4 F26 Engine Electronics Control Unit Box Cover Trim 8509910

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7559178-1

BMW E60 E90 E91 325i 525i N52 218HP Engine ECU Kit DME 7559178 CAS2 + Key Manual

€284.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6919759

BMW E65 E66 E67 Control Unit Front Centre Console Module 6919759

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8583653-1

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

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8573260-10

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

€189.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9147869-1

BMW E60 E61 Radio Professional Navigation System Controller Head Unit 9147869

€279.95

Free delivery: Nov 10 – 13

If paid before 14:00

Part no. 7928682

Radio Receiver BMW F40 F44 G20 G26 Radio Remote Control Unit 434 MHZ 7928682

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9118263

BMW F01 F02 F03 F10 Antenna Amplifier Module Trap Circuit 9118263

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7359019-3

BMW F20 F21 LCI Light in Trunk Lid Left N/S Rear Lamp Wire Harness Cable 7359019

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9291955

BMW F20 Front Door Wiring Harness Cable Driver Side 9291955

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7553166-4

BMW E92 Engine Control Unit ECU 2.5 Petrol 218HP N52B25 Automatic 7553166 Kit

€455.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 2315828

BMW F11 F20 F21 F33 E81 E82 E87 E88 Electronic Module Adapter Device 2315828

€94.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8485065

BMW G11 G12 G14 G15 G16 G30 G31 G32 G38 Positive Battery Cable Wire 8485065

€47.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5A4EE45

BMW i4 G26 Rear Battery Holder Bracket Mount Support Screw 5A4EE45

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9289583

BMW X1 E84 Display Screen Dashboard Navigation Monitor On-Board CID 6,5" 9289583

€170.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9380323

BMW F10 Steering Column Module Electronic Control Unit ECU 9380323

€66.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6957761

BMW 5 6 Series E60 E61 E63 Passenger Door Airbag Control Module 6957761

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8713127-1

BMW F90 M5 F91 M8 G30 Fuse Box Power Distribution Control Unit Box Rear 8713127

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9252690

BMW F12 f13 Interior Active Sound Module Control Unit Mount Bracket 9252690

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8602802

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

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9374507-1

BMW F23 REM Rear Electronic Module Fuse Box Control Unit V2 9374507

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8663284-4

BMW F22 218i B38 Engine Control Unit ECU 1.5 Petrol 136HP Manual 8663284

€503.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6808523

BMW F10 Individual Audio System Amplifier Module ECU 6808523

€1,139.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6825835

BMW 2 Series F45 F46 Cable Wiring Jump Starter Base B+ Engine Battery 6809391

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9340998

BMW 1 2 Series F21 F22 Wiring Passenger Side Loom Front Door Left N/S 9340998

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9354070

BMW F45 Active Tourer F46 Gran Tourer Door Wiring Harness Cable Adapter 9354039

€42.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8373700-2

BMW E60 E63 E87 E90 E91 4X Relay Make Contact White Green Set 8373700

€25.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9884543

BMW G30 G31 LCI High Voltage Battery Cable Wiring Harness Charger 9884543

€132.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8573779-3

BMW F30 330dX 258HP N57N Control Unit Module ECU DDE 8573779 Key FEM Automatic

€189.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8586540-5

BMW F30 F32 LCI 330d 430d N57N 258HP Control Unit ECU Kit DDE 8586540 FEM Key

€398.95

Free delivery: Nov 12 – 13

If paid before 14:00

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