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 E81 E82 E87 LCI E88 N47S 123d ECU Kit DDE 7812502 + CAS3 + Key Manual

€142.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8672239-2

BMW F10 M5 F12 F13 M6 S63N 560HP Engine Control Unit ECU 8672239 Automatic

€522.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 5A98AC9

BMW F74 Steering Gear Rack Wiring Loom Harness Cable 5A98AC9

€66.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 5B702D3

BMW F74 Gran Coupé Fuel Pump Module Control Unit 5B702D3

€113.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9130047

BMW E92 F32 E61 LCPA Seat Belt Module ECU

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8621017

BMW G20 G21 G30 G31 LCI G11 G12 Cell Module Connector Harness Loom Cable 8621017

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9276009

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

€180.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9287756

Loudspeaker Centre BMW F25 F15 Central Woofer Audio Speaker 9287756

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 3412336

BMW X3 E83 Battery Cable Negative Wiring 3412336

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9227752

BMW F20 F21 F22 F23 F30 F80 M3 F82 F36 Distributor B Multifuse 9227752

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6907313

BMW E65 E66 Wiring Loom Cables Rear Bumper PDC 6907313

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 5A52C23

BMW X1 U11 Electric Wiring Harness Cable 5A52C23

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9181454

BMW X1 E84 Aerial Antenna Noise Suppression Filter 9181454

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9284294

BMW G20 G21 G28 X1 U11 Battery Cut Off Disconnect Socket High Voltage 9284294

€32.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8577835-2

BMW F01 LCI N57N 258HP Engine Control Unit ECU DDE 8577835 Automatic

€313.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6921982

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

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9236460

BMW F10 Footwell Light Module Control Unit ECU FRM III 9236460

€75.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9243645

Battery Cable BMW X3 F25 Wire Lead Positive Alternator Starter B+ 9243645

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8636069

BMW F20 F30 LCI B48 Engine Gearbox Module Wiring Cable Loom Harness 8636069

€85.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9248096

Air Module BMW F01 F02 LCI F06 F10 F11 F13 ECU Control Unit ECU 9248096

€28.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9337807

Door Speaker BMW F15 F16 Front Rear Loudspeaker HiFi Audio Speaker 9337807

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6837090

BMW G30 G31 Fuse Box Control Unit Module 6837090

€142.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7849446-1

BMW F15 F85 F16 F86 Steering Wheel Lane Change Control ECU Module 7849446

€80.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9798377-1

BMW F45 LCI 225xe B38X B38A15A 224HP Engine ECU DME Kit 9798377 BDC + Key

€379.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8576341

BMW F20 F21 F30 F31 118d 318d 143HP N47N Engine Control ECU DDE 8576341 Manual

€56.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7317408

BMW F10 F11 LCI F30 F31 Xenon Headlight Ballast Control Unit 7317408

€32.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9313933

BMW F13 Footwell Light Module Control Unit ECU FRM3 9313933

€66.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9363777

BMW F45 Actve Tourer 2nd Row Seats Wiring Loom Harness Cable 9363777

€32.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6942551

BMW E87 E90 E91 Front Left N/S Seat Lordosis Pad Adapter Lead Wiring

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9268706

BMW F01 F02 F04 F10 Rear Compartment Monitor Left Right N/O/S 9,2" Black 9268706

€427.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6833650-1

BMW F39 F40 F45 F46 F48 Mini F54 F55 F56 F57 Air Quality Sensor AUC 6833650

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6968650

BMW 3 Series E93 E93N LCI Aerial Antenna Amplifier FM/AM Right O/S 6968650

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6901269

BMW X3 Z4 Series E83 E85 E86 Base B Positive Battery Terminal Cover Compartmen

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9259831

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

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7811700-3

BMW E60 LCI E87 E90 120d 320d 520d N47 177HP ECU KIT DDE 7811700 CAS3 Key Manual

€113.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8067511

BMW F98 Adapter Cable Wiring RBS Rear Axle 8067511

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9127088

BMW E81 E90 DC/DC Torque Converter Module Wandler 9253208 9127088

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6923209

BMW X5 E46 E53 Alarm System Inclination Indicator Module Unit 6923209

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9229875

BMW 3 Series E90 LCI Body Control Module H1 PL2RR JBBFE IIIR 61359229875 9229875

€75.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6947216

BMW 3 Series E93 Convertible Rear Bumper FM Radio Aerial Antenna 6947216

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6930006

BMW X5 3 Series E70 E90 Clamping Ring B+ Transition Battery Cable 6930006

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6798872-1

BMW F10 F11 F30 F31 Wheel Module Tire Pressure Control RDC 433MHZ Unit 6798872

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 5B4A355

BMW X1 U11 X2 U10 Front Passenger Side Door Control Unit Module 5B4A355

€104.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8621190

BMW F20 F22 F30 LCI Electric Line Cable Power Distribution Module 8621190

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9390018

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

€313.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9133144

BMW 5 Series E61 Body Gateway Module KGM LOW LEAR 9133144

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6866986

BMW F01 F02 LCI F06 F10 F11 F13 ECU ICM Control Unit Module Airbag 6866986

€28.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8515494

BMW 5 Series F10 F11 530d N57N Cable Alternator Starter Base B+ 8515494

€31.95

Free delivery: Aug 5 – 10

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: Aug 5 – 10

If paid before 14:00

Part no. 7634297-3

BMW F20 F30 116i 316i N13 136HP Engine Control ECU Kit DME 7634297 Automatic

€427.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9134661

BMW E87 E90 E91 E92 Seat Control Unit Module ECU 9134661

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8601245

Earth Ground Cable BMW i3 I01 Hybrid Rex Electric Engine Wiring 8601245

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9341325

BMW F33 Automatic A/C Air Conditioning Module Control Unit ECU 9341325

€42.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9143823-1

BMW E88 E93 LCI ECU Air Control Unit Module Controller 9143823

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9436281

BMW G20 G21 Front Door Wiring Loom Harness Cable Driver Side 9436281

€42.95

Free delivery: Aug 5 – 10

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: Aug 5 – 10

If paid before 14:00

Part no. 9237968

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

€66.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8386674

BMW 3 5 Series E46 F30 G30 G31 Battery Cable Negative Cable Minus Cable 8386674

€26.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7233914

BMW E90 E91 Central Locking Lock Immobilizer Control Unit Module ECU 7233914

€37.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9340996

BMW F87 Door Wire Harness Cable Loom Front Passenger's Side 9340996

€32.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8676222

BMW 3 F30 LCI Hybrid 330e Battery Starter Connecting Lead Cable Wiring 8676222

€99.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6970086

BMW 5 6 Series E60 E61 E63 LCI Cable Set Start / Stop Switch Wiring Loom 6970087

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9289590

BMW X5 X6 E70 E71 Antenna Amplifier Module Trap Circuit 9289590

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7075944-3

BMW E60 E65 E70 Front Right Seat O/S Height Adjustment Drive 7075944

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9311849

BMW F20 F21 Air Conditioning A/C Climate Control Unit Module ECU 9311849

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9304007

BMW G30 Seat Occupancy Sensor Mat Passenger Side Control Unit Module 9304007

€32.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7346699

BMW 3 4 Series F30 F82 M4 Carrier Mount Holder Backrest Left N/S 7346699

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9289374-1

BMW X5 F15 X6 F16 Front Battery Fuse Box Positive Distribution Terminal 9289374

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9270355

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

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9241825

Central Information Display BMW F10 F11 LCI Boardmonitor Screen 7" 9241825

€47.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9453978

BMW G20 G21 G30 G31 Communication Wiring Harness Loom 9453978

€89.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9380885

BMW 1 3 4 F20 F30 F32 Control Unit Air Conditioning A/C Module 9380885

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6951674

BMW E81 E87 E90 PDC Parking Sensor Ultrasonic Sparkling Graphite A22

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9212916

BMW 5 7 X5 E70 F01 F02 F10 F11 Rain / Light / Solar Fogging Sensor 9212916

€28.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8716602

BMW G20 Front Door Wiring Loom LED Light Harness Passenger Side 8716602

€32.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6807395

Interface Control Module BMW F10 F20 F30 Bus Unit 120 OHM 6807395

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9294912

BMW F10 F11 X5 F15 X6 F16 Rear Seat Compartment Screen Display SET 9294912

€569.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7591529

BMW F12 F13 F20 F21 Alternator Generator 14V 210A N55 Petrol Engine 7591529

€80.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 2622341

BMW 2 3 5 Series F10 F22 F30 F32 Antenna Amplifier Module Trap Circuit 2622341

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9229878

BMW E91 LCI ECU Body Control Module Junction Box H2 9229878

€62.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8579482

BMW F20 F21 116d ed Diesel N47N 116HP Engine Control ECU DDE 8579482 Manual

€94.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6857314

Crash Module BMW F01 F02 LCI F10 F11 F13 ICM Control Unit ECU

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9259354

BMW F10 F20 F30 Camera Module Reversing Rear View Camera Control 9259354

€94.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7838041

BMW M3 E93 Engine Throttle Body Cable Wiring Loom Plug 7838041

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9159311

BMW 5 Series F10 F11 Mini R55 R56 R57 Door Sensor Airbag 9159311

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9267980

BMW F10 Fuse Location Diagram Map Fuse Grouping 9267980

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7533282

BMW X3 Z4 E83 E85 E86 Fuse Box Cover Power Distribution Engine Bay 7533282

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7621178-5

BMW E81 E87 LCI E90 N43 118i 318i Engine Control ECU DME Kit 7621178 Automatic

€375.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6958414

BMW E60 E61 Alarm System Unit Ultra Sonic Module 9149673

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7835131

BMW E60 E61 LCI M5 E63 M6 Fuel Injection System Adapter Lead 7835131

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6929916

BMW E63 E64 Rear Bumper PDC Cables Set Wiring Loom Harness 6929916

€32.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9878329

BMW U06 X1 U11 Front Subwoofer Speaker Bass Low Tone Left N/S 9878329

€56.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 3414469

BMW X3 E83 Fuse Grouping Front Stick-on Label Diagram 9267980

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9186655

BMW 3 Series E92 Front Right O/S Driver Side Door Wire Wiring Loom 9186655

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8617778

Earth Ground Cable BMW i3 I01 Hybrid Rex Electric Engine Wiring 8617778

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8586540-2

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

€332.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9119578

Antenna Amplifier BMW Z4 E85 E86 Rod Antenna Unit Module 9119578

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6863385

BMW F20 F21 F30 F31 ECU ICM Plus Control Unit Module Airbag 6863385

€28.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8509722-1

Control Unit Box BMW F20 F21 F22 F30 F31 Engine Ecu Cover 8509722

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

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