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 F20 F21 F30 F31 Telematics Module Bluetooth Combox Telematik ECU 9244189

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6818814

Airbag Module Mini F55 F56 F60 BMW X1 F48 F45 ECU Control Unit Air Bag 6818814

£66.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9326204

BMW X3 F25 B+ Distribution Box Battery Power Front Control Unit Point 9227458

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6932452

BMW 5 6 Series E60 E61 E63 E64 Power Distribution Electrical Fuse Box 6932452

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9318579

BMW F20 F21 F30 F31 Bluetooth Teleservices GPS Telematics Module 9318579

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9244429

BMW X6 Series E71 Rear Bumper PDC Cables Wiring Loom Set 9244429

£47.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6836768

BMW F20 F31 LCI F32 Telematics Control Unit Module ATM ECE 4G WLAN 2622602

£123.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6968036

BMW 1 Series E87 ECU Body Control Module Unit H2 PL2 JBBFE 6968036

£47.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9231175

Diversity Antenna Amplifier BMW F30 F32 Rear Window DAB Module Unit 9231175

£23.95

Free delivery: Aug 28

If paid before 14:00

Part no. 7579142-2

BMW E81 E87 LCI E90 120i 320i Petrol N43 170HP Engine ECU DME 7579142 Manual

£66.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6957342

BMW 5 6 Series E60 E63 On-board Navigation Display Monitor Screen 6,5" 6957342

£37.95

Free delivery: Aug 28

If paid before 14:00

Part no. 167859

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

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9283429

BMW E90 E91 E92 E93 LCI Radio CD Player Multimedia Head Unit 9283429

£427.95

Free delivery: Sep 1 – 8

If paid before 14:00

Part no. 7595179-16

BMW E81 E87 LCI E90 E91 Petrol N43 Engine Control Unit ECU DME 7595179 Automatic

£94.95

Free delivery: Sep 1 – 8

If paid before 14:00

Part no. 8586536-3

BMW F30 F32 LCI F36 335dX 435dX N57Z 313HP Control ECU DDE 8586536 Automatic

£142.95

Free delivery: Aug 28

If paid before 14:00

Part no. rhd-9176681

BMW Z4 E89 Cabrio Key Reader Ignition Lock Remote Control 9176681

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6860385

Control Unit BMW F01 F02 F07 Air Suspension Control Module ECU 6860385

£137.95

Free delivery: Aug 28

If paid before 14:00

Part no. 8506657

BMW X3 F25 Starter Motor Diesel Engine 12V Bosch 8506657

£23.95

Free delivery: Aug 28

If paid before 14:00

Part no. 8614302-2

BMW F20 F21 F30 116i 316i N13 Engine Control Unit ECU Module DME 8614302 Manual

£275.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6929345

BMW 1 3 Series E82 E90 E92 Roof Antenna Aerial Shark Fin GPS Radio Tel 6929345

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6907395

BMW X5 Series E53 Electrical Power Distribution Fuse Box 6907395

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6862808

BMW F10 F11 F12 X3 F25 Electric Parking Brake Control Unit EMF Module 6862808

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6844126

On-Board Screen BMW F20 F30 LCI Information Display Touch Monitor 8,8" 6844126

£474.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9241826

On Board Screen BMW F10 F11 Central Information Display Monitor 10,25" 9241826

£75.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9324781

BMW F20 F21 F22 F30 F31 F32 F36 Module Control Unit FEM 9324781

£66.95

Free delivery: Aug 28

If paid before 14:00

Part no. 8622032

BMW F20 F21 F30 F31 LCI Control Unit Box Cover Mudguard Flap Cap 8622032

£23.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9114215

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

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9325656

BMW F20 F21 F22 F30 F31 F32 Body Control Module Unit FEM ECU LR01 9325656

£37.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6956939-1

Changer Unit BMW E63 E64 6-disc Compact CD Head Player 6956939

£37.95

Free delivery: Aug 28

If paid before 14:00

Part no. 8791692

BMW F10 F20 F30 Head Unit Basis Media Navigation Headunit 8791692

£123.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9266385-1

BMW F10 F11 On-Board Screen Central Information Display Monitor 10,25" 9266385

£56.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9243896

Central Information Display BMW F10 F11 LCI Boardmonitor Screen 7" 9243896

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. rhd-7572410

Engine Wiring BMW E87 E90 E91 N52 Manual Gearbox Loom Harness Cable 7572410

£66.95

Free delivery: Aug 28

If paid before 14:00

Part no. 8610484

BMW F20 F21 114i N13 102HP Engine Control Unit ECU Module DME 8610484 Manual

£313.95

Free delivery: Sep 1 – 8

If paid before 14:00

Part no. 9153803

BMW X5 Series E70 Light Lightning Control Unit Module FRM II Lear 9153803

£80.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9224592-1

BMW E87 LCI Footwell Light Module Control Unit PL2 FRM3R 9224592

£75.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9369124

BMW F10 F20 F30 Front Seat Control Unit Module Memory 9280913

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9323554

BMW 1 3 Series F20 F21 F30 Operating Unit Audio FBM Control Unit Panel 9323554

£28.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9189175

BMW 1 3 5 Series E60 E61 E81 E87 E90 E91 USB AUX In Socket Port Plug 9189175

£28.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9162930-WB1

BMW E81 E82 E87 E90 E91 Parking Sensor PDC Ultrasonic Bluewater - 896 SET X2

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9253111-2

BMW F20 F21 F22 Positive Plus Pole Battery Blow Cable 9253111

£28.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9197002

BMW X5 Z4 E70 E89 HiFi Stereo Audio Sound System Amplifier 9197002

£42.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9304587

Body Control Module BMW X3 F25 ECU Junction Box JBBFE III 3 Lear 9304587

£66.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9296494-1

BMW F20 F21 F22 F30 F31 F32 Control Unit Airbag Ecu 9296494

£23.95

Free delivery: Aug 28

If paid before 14:00

Part no. 7570254

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

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 7810002-1

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

£237.95

Free delivery: Aug 28

If paid before 14:00

Part no. 7276384

BMW F10 F11 F01 Control Unit Module ECU Fuel Pump 7276384

£47.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9286129

BMW X3 F25 Body Control Module ECU Junction Box JBBFE III V9 9286129

£47.95

Free delivery: Aug 28

If paid before 14:00

Part no. 8639582

BMW F20 M135i F22 M235i F30 335i N55 Engine Unit ECU DME 8639582 Automatic

£284.95

Free delivery: Sep 1 – 8

If paid before 14:00

Part no. 9390576

Airbag Module BMW X1 F48 F45 F46 Air Bag Control Unit ECU 9390576

£37.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9268752

Control Unit BMW F01 F02 F07 F10 F11 CAS4 Key Reading Module 9268752

£42.95

Free delivery: Aug 28

If paid before 14:00

Part no. 8373901

BMW 5 7 X5 E38 E39 E53 Steering Column Adjuster Switch Stalk 8373901

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 8631668

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

£61.95

Free delivery: Aug 28

If paid before 14:00

Part no. 8065118

Differential Lock Module BMW F13 M6 F80 M3 Rear Axle Control Unit ECU 8065118

£42.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9384687

BMW F46 KaFAS Camera Front Windscreen Parking Camera Module Unit 9384687

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 7789222

BMW 3 5 7 X3 X5 Series E46 E53 E60 E65 E83 Cable Alternator Starter

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9374507

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

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. 7123023

BMW Z4 Series E85 Emergency Release Folding Top 7123023

£23.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9292246

Display Screen BMW F20 F21 F22 Central Information Infotainment 8,8" 9387548

£208.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9180756

BMW 5 Series E61 LCI Light Control Module Unit Lear LM II E6X LWR 9180756

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9251487

BMW E82 Footwell Light Module Control Unit ECU BASIS PL2 FRM3R 9251487

£180.95

Free delivery: Sep 1 – 8

If paid before 14:00

Part no. 6941416

BMW 5 6 Series E60 E61 E63 E64 6-disc Compact CD Changer 6941416

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6926333

Door Cable BMW E93 Convertible Wiring Loom Front Cables Passenger Side 6926332

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6945029

BMW 5 6 Series E60 E63 E64 Body Control Module ECU Control Unit 6945029

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6823590

BMW F10 Footwell Light Control Unit Module ECU FRM III 6823590

£75.95

Free delivery: Aug 28

If paid before 14:00

Part no. 7561834-18

BMW E87 E90 118i 318i Engine N46 129HP ECU KIT DME 7561834 CAS2 + Key Automatic

£303.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9176079

BMW E60 E64 LCI Body Gateway Module ECU Control Unit KGM E6X High D-Can 9176079

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9210861

BMW F10 F11 Power Distribution Fuse Box Front 9210861 61149210861

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 7640755-2

BMW F20 F21 114i N13 102HP Engine Control Unit Module ECU DME 7640755 Manual

£284.95

Free delivery: Aug 28

If paid before 14:00

Part no. 8792148

Navigation Headunit BMW F20 F22 F30 Mini F55 F56 Head Unit Basic Media

£51.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9162959

Seat Control Unit BMW X5 E70 E87 E90 E91 E92 Module Memory ECU 9162959

£37.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6950525

BMW 3 6 Series E63 E64 E93 DWA Alarm System Module Unit 65756950525 6950525

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 7314798

Trunk Lid Module BMW F31 F15 F16 F36 Control Unit Rear Tailgate Lift 7314798

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. A1698201085

Mercedes W245 ECU Control Unit Sensor Air Module A1698201085

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6814183

Audio Control Panel BMW F20 F30 F31 F32 Operating Unit FBM 6814183

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9253637

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

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9171347

BMW 5 X5 Series E61 E61 LCI E70 Telematics Bluetooth Control Unit Module 9171347

£37.95

Free delivery: Aug 28

If paid before 14:00

Part no. rhd-7808269

BMW 3 Series E90 E91 LCI Diesel N57 Wiring Loom Harness Engine Gearbox Module

£28.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6952914

Wiring Loom BMW E65 E66 Cables Rear Bumper PDC 6952914

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9290013

BMW X3 F25 Footwell Light Control Unit Module ECU FRM III TEMIC 9290013

£28.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6957109

BMW 3 Series E92 Front Right O/S Driver Side Door Wire Wiring Loom 6957109

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9292248-1

Display Screen BMW F30 F31 F32 F33 Central Information Display 8,8" 9292248

£123.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6964139

BMW 7 Series E65 E66 E67 Front Control Unit Door Passenger Side 6964139

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6827063

BMW X5 E70 Footwell Light Control Unit Module FRM3R Lear ECU 6827063

£123.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6938226-2

BMW 3 Series 2 E90 E91 LCI M3 Wiring Loom Rear Door Left Right 6938226

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 8574352

BMW X1 E84 20d 20dX 184HP N47N Engine Control Unit ECU DDE 8574352 Automatic

£75.95

Free delivery: Aug 28

If paid before 14:00

Part no. 7567776

Starter Cable BMW E81 X1 E84 E87 E90 N52 Alternator Battery Wire B 7567776

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9390396

Audio Amplifier BMW F20 F21 F22 Harman Kardon Active Sound Design Unit 9390396

£56.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6955346

M-Audio Controller BMW E60 E61 E63 E64 Radio Player M-ASK CD Head Unit 6955346

£89.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9150721

BMW E87N ECU Body Control Module H2 Junction Box 9150721

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 7607973

BMW F20 F21 F30 Wiring Loom Harness Injection Valve Ignition 7607973

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 7811111

BMW X3 E83 LCI 2.0d N47 177HP Engine Module ECU Kit DDE 7811111 Automatic

£284.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9418460

BMW G30 G31 PDC Module Parking Assistant Control Unit USS VA03 HIGH 9418460

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. 7434273

Headlight Control Unit BMW F30 F31 LCI Module FLE2 7434273

£32.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6938215

BMW 3 Series E90 E91 Front Right O/S Driver Side Door Wire Wiring Loom 6938210

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9257200

BMW X5 E70 CD Player Head Unit CIC DAB Professional Navigation Sat Nav 9257200

£184.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6781575-1

YAW Rate Sensor BMW E81 E87 E90 E91 Accelerator Speed Module 6781575

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6951674-CAR

BMW E81 E87 E90 PDC Parking Sensor Ultrasonic Carbonschwarz Black

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. rhd-7552381

BMW Z4 Series E85 2.0i N46 Wiring Harness Engine Gearbox Module Set 7552381

£23.95

Free delivery: Aug 28

If paid before 14:00

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