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 F15 Wiring Front Right O/S Door Harness Loom 9365780

€42.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9296967

BMW F10 F11 LCI PDC Wiring Loom Harness Front Parking Sensor Cable 9296967

€94.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9149242

BMW 5 6 Series E60 LCI E63 CHAMP Business System Controller CD Player 9149242

€94.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6934002

BMW 7 SERIES E65 E66 Door Wiring Harness Mod Carrier Front Left N/S 6934002

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9117847

PDC Module BMW F45 X3 F25 Mini F55 F56 Parking Distance Sensor Unit 9117847

€28.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6926459

BMW X1 E81 E82 E84 E87 E88 E90 E91 E92 Climate Control Solar Sensor 6926459

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6915327

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

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6952987

BMW 5 6 Series E60 E61 E63 Driver Side Door Airbag Control Unit Module 6952987

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8636064

Wiring Cable BMW F20 F30 LCI B48 Engine Injector Ignition Loom 8636064

€85.95

Free delivery: Jul 29 – Aug 3

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: Jul 29 – Aug 3

If paid before 14:00

Part no. 9252815

BMW F01 F02 F10 F11 LCI Power Distribution Fuse Box Front 9252815

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9174271

BMW F10 LCI Bluetooth Control Unit Module Bracket Holder Mount 9174271

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 2295873

BMW F30 F33 Rear PDC Sensors Wiring Loom Cable 2295873

€37.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9281068

Antenna Receiver BMW F33 F83 M4 Convertible Aerial DAB Unit 9281068

€37.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9290621

BMW F33 F83 M4 Convertible Top Phone Antenna Aerial Module CTM Unit 9290621

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9286217

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

€61.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6958414

BMW E60 E61 Alarm System Unit Ultra Sonic Module 9149673

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9387232

BMW F45 F46 Body Domain Controller BDC Control Unit Module LR01 ECU 9387232

€156.95

Free delivery: Jul 29 – Aug 3

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: Jul 29 – Aug 3

If paid before 14:00

Part no. 3419515

BMW E83 LCI Valvetronic Starter Cable Wire Loom 3419515

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6857262

Air Module BMW F01 F02 LCI F10 F11 F13 ICM SRS Control Unit ECU Bosch 6857262

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9306084

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

€151.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 7540992-1

Alternator Generator BMW X5 E53 E60 E61 E63 E65 N62 Petrol Engine 180A C543294A

€113.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 5A207E7

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

€379.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9321879

BMW F10 LCI Body Control Module Gateway ECU 9321879

€23.95

Free delivery: Jul 29 – Aug 3

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: Jul 29 – Aug 3

If paid before 14:00

Part no. 6980020

BMW E63 E64 Rain Light Sensor Control Unit Module HUD 6980020

€56.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9177979

BMW E81 Body Control Module ECU L2 PL2 JBBFE II Junction Box 9177979

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9165624

BMW E93 Air Module Control Unit Module ECU 9165624

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9381581

BMW i3 I01 IBS Cable Negative Battery Lead Wiring Harness Control Unit 9381581

€42.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 5A2D558

BMW X3 G01 G20 G21 G30 G31 Audio Receiver DAB ECE Control Module 5A2D553

€222.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 5A28AF0

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

€840.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9328591

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

€28.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6960221

Airbag Module BMW E65 E66 Sensor B-pillar Left N/S Control Unit Air Bag 6960221

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6821135

BMW F20 F21 F22 F30 F31 Head Unit Media DAB Navigation Business Headunit 6821135

€113.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8649179

BMW X5 F15 Positive Wiring Harness Cable Battery 8649179

€89.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 1442929

BMW E60 E61 E63 Radio CD Player Head Unit Part Cooling Fan Ventilation 1442929

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6921415

BMW E46 E89 Mini R50 R52 Parking Control Module Unit PDC 6921415

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8377658

BMW X5 SERIES E53 TV amplifier 8377658

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 913463601

Seat Module BMW E65 Front Seat Control Unit Module ECU 913463601

€32.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 7619136

BMW E84 F25 F26 N20 Engine Sensor Module Wiring Cable Loom Harness 7619136

€56.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8574091

BMW F10 F11 520d N47N 184HP Engine Control Unit ECU DDE 8574091 Automatic

€85.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6863433

BMW F20 F21 F22 F30 F31 ECU ICM Plus Control Unit Module 6863433

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6998487

Airbag Module Mini F55 F56 F60 BMW X1 F48 F45 ECU Control Unit Air Bag 6998487

€142.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9186571

BMW E90 LCI Wiring Loom Front Door Cable Wiring Harness Driver's Side 9186571

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6977679

BMW X5 X6 3 4 Series E70 F15 F16 F30 F31 F32 Cigarette Lighter Socket 6977679

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9233034-SCG

PDC Parking Sensor BMW X5 E70 F10 F11 F12 Ultrasonic Sensor Space Grey 9231283

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 7601305

BMW F10 F11 LCI F13 N63 N63N Petrol Water Pump Adapter Lead Cable Wiring 7601305

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6836504

BMW F20 F21 LCI F30 F31 F32 F13 Electric Coolant Fan Motor Relay 130A 6836504

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8656997

BMW X5 F15 X6 F16 Ground Cable Negative Battery Lead Wire 8656997

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8715719

BMW G20 320i Fuse Relay Box Control Unit Rear Power Distribution 8715719

€42.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9171925

BMW E88 Convertible Air Module Sensor ECU Control Unit Module 9171925

€28.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9124585-SED

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

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9267980

BMW F10 Fuse Location Diagram Map Fuse Grouping 9267980

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9313616

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

€56.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9128573

BMW 1 Series E87 LCI E87N Cable Set PDC Front Wiring Loom 9128573

€42.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9282069

BMW 5 Series F10 F11 Cable Loom Front Driver's Door Wiring Harness 9255986

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9304007

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

€32.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9496815

Front Impact Sensor BMW F70 G05 G14 G15 G29 Safety Crash Module Unit 9496815

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 7809680

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

€32.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9348726

BMW F20 F21 F30 Air Module Control Unit 0285013626 9461918 9296494 6826983

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9322120

BMW F30 F31 F32 F33 Central Information Display Screen 6,5" 9322120

€28.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6998485

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

€89.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8795477

BMW G20 Power Distribution Box LIN Module Control Unit ECU 8795477

€37.95

Free delivery: Jul 29 – Aug 3

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: Jul 29 – Aug 3

If paid before 14:00

Part no. 9229837

BMW X5 E70 LCI ECU Body Control Module PL4 JBBFE III Junction Box 9229837

€227.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 7379674-2

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

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6958526-1

BMW 5 X5 X6 Series 1 E60 E61 E70 E71 F10 F11 Seat Adjustment Switch Right O/S

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 3414469

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

€23.95

Free delivery: Jul 29 – Aug 3

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: Jul 29 – Aug 3

If paid before 14:00

Part no. 8380118

BMW E46 Amplifier Holder Audio Catch Bracket Mount Trim 8380118

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6867168

BMW 1 2 Series F20 F21 F30 F31 N13 N47N ECU ICM Control Unit Module 6867168

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9259205

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

€47.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8363668

BMW X3 X5 Series E53 E83 Steering Column Turn Indicator Switch Stalk 8363668

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9797875

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

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8506434

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

€61.95

Free delivery: Jul 29 – Aug 3

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: Jul 29 – Aug 3

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: Jul 29 – Aug 3

If paid before 14:00

Part no. 9365819

BMW X5 F15 Wiring Rear Right O/S Door Harness Loom 9365819

€28.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8578609

BMW F20 F21 F30 F31 Diesel Alternator Generator 180A 8578608 8578609

€32.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9878327

Air Conditioning Module BMW G11 G20 G21 G30 Control Unit ECU 9878327

€37.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6949381

BMW E65 E66 Front Door Wiring Door Cable Harness Loom 6949381

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9204526

BMW E92 Xenon Footwell Light Module Control Unit ECU PL2 FRM II 9204526

€123.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 7570254

Plus Cable BMW X1 E81 E87 E90 E91 N45 N46 Alternator Starter Wiring 7570254

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8387551

BMW 3 Series E46 Battery Positive Cable Fuse Box Base B 8387551

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9131731

BMW E81 E82 E88 E92 Driver Seat Wiring Memory Loom Harness Cable 9131731

€28.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 5B44D47

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

€227.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 5A374F9

BMW F40 Radio CD Player Head Unit Navigation Sat Nav CIC Alpine 5A374F9

€450.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 7638005

BMW F20 F30 F32 Earth Ground Cable Negative Battery Lead Wiring 7638005

€23.95

Free delivery: Jul 29 – Aug 3

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: Jul 29 – Aug 3

If paid before 14:00

Part no. 6823590

BMW F10 Footwell Light Control Unit Module ECU FRM III 6823590

€89.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9454245

Differential Locking Module BMW F90 M5 G20 Rear Axle Control Unit ECU 9454245

€66.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9341325

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

€42.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 7120204

BMW E93 Cable Wiring Loom Harness Hydraulic Pump 7120204 7191362

€32.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 7561834-13

BMW E87 E90 120i 320i N46 150HP Engine Control DME Module 7561834 Automatic

€123.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 3412336

BMW X3 E83 Battery Cable Negative Wiring 3412336

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6769834

BMW E61 E65 Suspension Air Supply Compressor Control Unit

€166.95

Free delivery: Jul 29 – Aug 3

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: Jul 29 – Aug 3

If paid before 14:00

Part no. 8631668

BMW F20 F21 F30 LCI M140i 340i Wiring Harness Injection Valve Ignition 8631668

€80.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

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