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 E87 E90 E91 Diesel N47 Wiring Harness Loom Cable Engine Injector 7802164

£47.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9187533

BMW E92 ECU Body Control Module Junction Box L1 PL2 JBBFE II 9187533

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. 8365960

BMW E38 E39 E53 Battery Crash Disconnection Control Relay 8365960

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9137775

BMW E60 Light Control Module Unit Lear LM II E6X LWR LCM 9137775

£28.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6906621-1

BMW E87 E90 E91 E92 E93 Fuse Box Power Distribution Front 6906621

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9172019

BMW 5 Series E60 E60N E61 E61N LCI Airbag ECU Control Unit Module 9172019

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 3450192

BMW X3 E83 LCI Light Module Control Unit ECU Lights LM II LWR 3450192

£113.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6990109

BMW X3 E83 LCI Front Door Speaker Tweeter 6990109

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9134669

BMW E93 Convertible Seat Control Unit Module ECU 9134669 FSV 7.10.0

£28.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9177978

BMW E92 ECU Body Control Module Junction Box L1 PL2 JBBFE 9177978

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6867168

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

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9207360

BMW E60 E87 LCI E90 Hands-free Bluetooth High Basis MULF2 9207360

£56.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6769834

BMW E61 E65 Suspension Air Supply Compressor Control Unit

£118.95

Free delivery: Aug 28

If paid before 14:00

Part no. 7612860

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

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9178898

BMW 1 3 5 Series E87 LCI E90 E60 Hands Free Bluetooth Module High MULF2 9178898

£47.95

Free delivery: Aug 28

If paid before 14:00

Part no. 7550891

BMW X5 E53 X3 E83 Four Wheel Drive Transfer Box Control Unit Module 7550891

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6927548

BMW Z4 E85 Drive For Window Lifter Motor Front Right O/S 6927548 9116626

£23.95

Free delivery: Aug 28

If paid before 14:00

Part no. 8638551

BMW F20 F21 F22 F30 F32 LCI Integrated Supply Module Unit 8638551

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9178862

BMW 1 3 Series E87 E90 Hands-free Electronics Bluetooth Module MULF2 9178862

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6945156

BMW 5 6 Series E60 E61 E63 Sensor B-pillar Airbag Right O/S

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6862756

BMW F20 F21 F22 F30 F31 ECU ICM Plus Control Unit Module 6862756

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6911003

BMW 1 3 X1 X3 X5 X6 SERIES E81 E82 E84 E87 E88 E90 Accelerating Sensor 6911003

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. rhd-8507799

BMW 3 Series E90 E91 E92 LCI N47N Wiring Harness Engine Injector Module 8507799

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6936653

BMW 1 3 Series E81 E82 E84 E87 E88 E90 E91 E92 Power Distribution Box 6936653

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6943085

BMW E60 E61 Air Module ECU Control Unit Gateway Module 6943085

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6938504

Battery Cable BMW E90 E91 E92 E93 Positive Lead Battery Wiring Harness 6938504

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6865298

BMW F20 F21 F30 F31 ECU ICM Plus Control Unit Module Airbag 6865298

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9261591

BMW F20 F21 F30 PDC Ultrasonic Parking Sensor PDC Front Imperial Blau Blue

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. 7457873

BMW F20 F21 F30 LCI Headlight Control Unit Module FLE2 7457873

£75.95

Free delivery: Aug 28

If paid before 14:00

Part no. 7938196

PDC Module BMW F45 X3 F25 Mini F55 F56 Parking Distance Sensor Unit 7938196

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9196938

BMW E93 Seat Control Module Unit ECU 9148266

£28.95

Free delivery: Aug 28

If paid before 14:00

Part no. 8364542

BMW E46 X3 E83 Power Distribution Fusebox Cover Fuse Box 8364542

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9351155

Control Panel BMW X3 F25 X4 F26 Radio Player High Audio Unit Module 9208591

£37.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9160189

BMW 1 Series E87 LCI ECU Body Control Module H2 ECU 9160189

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6968836-1

BMW 1 Series E87 BODY CONTROL MODULE L2 61356968836 6968836

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9124585

BMW 1 3 Series E87 E90 Front Rear PDC Ultrasonic Parking Sensor Sedonarot Red

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9131780

BMW 3 Series E92 ECU Body Control Module Junction Box L1 PL2 JBBFE 9131780

£23.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6922211

BMW E81 E87 E90 E60 Mini R55 R56 R57 Interior Aerial Comfort Access 6922211

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9110258

BMW E81 E87 E90 E91 Control Unit Air Module ECU 9110258

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9148265

BMW E70 E87 E90 E91 E92 Seat Control Unit Module ECU 9148265

£28.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9226882

BMW F20 F21 Rear Antenna Aerial Amplifier AM/FM DAB 9226882

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9229294

BMW F20 F21 F22 F30 F31 F80 M3 USB Socket Plug Port Control Unit 9229294

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9270501

BMW X3 E83N E70 LCI E71 PDC Parking Ultrasonic Sensor Schwarz 7687127

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 8387547

Fuse Box Base BMW X3 E83 Mini R50 R53 Battery Positive Cable B 8387547

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9118101

BMW 1 Series E81 E82 Driver Side Offside O/S Door Wiring Loom Harness 9118101

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 7801203

BMW X5 E70 E87 F10 F11 F15 F25 F30 Diesel Engine Starter Motor 7801203

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 7638477

Ignition Coil BMW E81 E87N LCI E90 E91 E92 F10 F11 Bosch 7638477

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6868253

BMW F20 F21 F30 F31 ECU ICM Control Unit Air Module ECU 6868253

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6935599

BMW 1 3 Series E81 E87 E90 PDC Parking Ultrasonic Sensor Red Japanrot Japan Red

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9866978

BMW F20 F21 F30 F31 F32 Body Control Unit Module REM 9866978

£28.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6919354

BMW E60 E61 Stereo System Central Bass Subwoofer Right O/S 6919354

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9322120

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

£23.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9139868

BMW X3 E83 LCI X5 E70 LCI PDC Parking Ultrasonic Sensor Schwarz Black 9139868

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9253563

BMW F20 F21 Wire Cable Plug Wiring Diagnostic Socket OBD 9253563

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 7411595

BMW F10 F20 F30 Control Unit For Fuel Pump Module 7411595

£36.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9302159

BMW X1 E84 E87 E90 E91 E92 LCI Radio CD Professional DAB 9302159

£75.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6982386

BMW X1 E81 E84 E87 E90 E91 Parking Control Module Unit PDC 6982386

£47.95

Free delivery: Aug 28

If paid before 14:00

Part no. 8705960

Navigation Headunit BMW F20 F21 F30 F31 LCI Radio Sat Nav Unit 8705960

£265.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9292948

BMW 1 2 3 4 Series F20 F21 F22 F30 F31 F32 F36 Module Control Unit FEM 9292948

£47.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9218330

BMW E81 E87 E90 LCI E92 Navigation System Car Computer CIC 9218330

£189.95

Free delivery: Aug 28

If paid before 14:00

Part no. 7811701-2

BMW 1 3 Series E87 LCI E90 E91 N47 DDE 7811701 Engine Control Unit Diesel ECU

£32.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9193745

BMW 3 5 E60 E61 E90 LCI Display Screen 8.8" Monitor Sat Nav 9193745

£66.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6794618

EMF Actuator BMW F10 F12 Brake Caliper Parking Brake Unit Electric 6794618

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9279824

Body Control BMW F20 F21 F30 F31 F32 Unit Module REM 9279824

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6850375

BMW 1 3 Series E81 E87 LCI E88 E90 M3 E92 Speed Cluster Sensor 6780334

£27.95

Free delivery: Aug 28

If paid before 14:00

Part no. 1388911-1

BMW E36 E38 E85 Mini R52 R57 2x Change-Over Contact Relay Violet Set 1388911

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9263800

BMW E90 LCI ECU Footwell Light Module FRM3R Rear Led Basis 9263800

£94.95

Free delivery: Sep 1 – 8

If paid before 14:00

Part no. 9261614

BMW 1 2 Series F20 F21 F22 Rear Bumper PDC Ultrasonic Sensor Glacier Silver

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9224589

BMW 1 Series E82 Footwell Light Module Control Unit ECU BASIS PL2 FRM3R 9224589

£70.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9136039

BMW E60 E63 Body Control Module ECU Control Unit 9136039

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 7638194

BMW F20 F21 F22 F30 F31 Engine Starter Motor N20 N26 N55 Petrol 7638194

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9377149

BMW 1 3 Series F20 F21 F30 F31 Telematic Control Unit Module 9377149

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6972064

BMW 1 3 X1 SERIES E81 E87 E90 E91 E92 Ultra Sonic Module Alarm System 6972064

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. rhd-7808247

BMW X5 E70 LCI X6 E71 N57 Engine Injector Module Wiring Harness Cable 7808247

£37.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9257152

Telematics Bluetooth BMW F10 F20 F22 F30 Combox GPS Control Unit Module 9257152

£47.95

Free delivery: Aug 28

If paid before 14:00

Part no. 7532878

BMW X5 E53 E60 E61 E63 E65 E70 Valvetronic VVT Control Unit Module 7532878

£56.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9252813

BMW 5 7 Series F01 F02 F10 F11 Power Distribution Fuse Box Rear 9252813

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9204526

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

£94.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9185542

BMW X5 E70 CCC Radio CD Player Navigation 9185542

£189.95

Free delivery: Sep 1 – 8

If paid before 14:00

Part no. 9148016

BMW E90 E91 E92 Professional CCC DVD Navigation System Controller 9148016

£284.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6826326

BMW F40 G05 G20 G30 Shark Roof Fin Antenna Aerial Module Unit 6826326

£47.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6981416

BMW E87 E90 E91 CAS 2 Control Unit ECU Key Reading Module 6981416

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9148267

BMW 3 Series E93 Seat Control Unit Module FSV 7.11.0 9148267

£47.95

Free delivery: Aug 28

If paid before 14:00

Part no. 3425833

BMW X3 E83 2.5i 3.0i M54 Wiring Harness Cable Engine Ignition Module 3412247

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. 8795213

BMW F20 F21 F30 F31 Wire Cable Screen Connector Monitor Display 8795213 8795212

£37.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6934648

BMW X5 E70 E91 LCI Touring Tailgate Trap Circuit Aerial Amplifier 6934648

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9331597

BMW F20 F21 F22 F30 F31 Alpine CD Radio Player Head Control Unit 9331597

£28.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6990098

BMW X3 E83 LCi AMPLIFIER HIFI SYSTEM LEAR PL2 6990098 65126990098

£28.95

Free delivery: Aug 28

If paid before 14:00

Part no. 7259883

Stop Lamp Cover BMW F30 F80 M3 Rear Third Stop Brake Lamp Trim 7259883

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9264916

BMW E82 E88 E92 E93 LCI Control Unit Airbag ECU NO CRASH DATA 9264916

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9114135

BMW X5 X6 Series E70 E71 Power Distribution Fuse Box 9114135

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. 7316535

BMW F20 F22 F30 Sliding Sunroof Drive Motor Unit Webasto 7193398

£23.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6863433

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

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6775949

BMW E90 E91 E92 Longitudinal Dynamic Module Cruise Control 6775949

£23.95

Free delivery: Aug 28

If paid before 14:00

Part no. 7239175

BMW 3 Series F30 F80 M3 Battery Cover Trunk Trim Panel Right Boot 7239175

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6989713

BMW 1 3 Z4 Series E88 E89 E93 Convertible Cabrio DWA-Alarm System Module 6989713

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9116445

BMW Z4 E85 E86 Basic Body Control Unit Module GM5 Star12 LOW 9116445

£142.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6975173

Bluetooth Module BMW E81 E87 E90 MULF Hands free Electronics Charging 6975173

£23.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9264923

BMW F01 F02 F10 F11 F13 Power Distribution Fuse Box Rear 9264923

£18.95

Free delivery: Aug 28

If paid before 14:00

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