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 E65 E66 E67 Amplifier Rear Window Antenna Amplifier Module 868MHZ

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9355549

BMW F20 F22 F21 F30 F32 LCI ECU USB Hub Module 9355549

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 2990415

BMW X1 E84 Front Door Handle Bowden Pull Cable Wiring 2990415

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9343317

Audio Amplifier BMW F20 F21 F22 Harman/Kardon Active Sound Design System 9343317

£47.95

Free delivery: Aug 28

If paid before 14:00

Part no. rhd-8507776

BMW X1 E84 20dX N47N Engine Gearbox Wiring Loom Harness Cables 8507776

£28.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9119355

BMW E60 E61 E63 E81 E87 E90 E91 DAB Radio Tuner Module 9119355

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6788716

BMW 7 Series E65 E66 E67 Steering Column Control Unit CIM Module

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9395173

BMW 1 2 3 4 Series F20 F21 F22 F30 F31 F32 F36 Module Control Unit FEM 9395173

£189.95

Free delivery: Sep 1 – 8

If paid before 14:00

Part no. 8624382

BMW 1 3 Series F20 F30 F31 LCI Line Cable Power Distribution Module 8624382

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9383069

Head Unit BMW F10 F20 F22 F30 Navigation Sat Nav High Control Module 9383069

£113.95

Free delivery: Sep 1 – 8

If paid before 14:00

Part no. 7627021

BMW 1 3 Series F20 F21 F30 Petrol N13 Harness Engine Sensors Module 1 7627021

£28.95

Free delivery: Aug 28

If paid before 14:00

Part no. 7537365

Cable Wire BMW E60 E61 E81 E87 E90 Tubing For Clamp 7537365

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6942990

BMW 5 6 Series E60 E61 E63 E64 Actuator Air Distribution Flap Matrix Heater

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. rhd-7570540

BMW 1 3 E87 LCI E90 Petrol N43 Wiring Loom Harness Manual Gearbox 7570540

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 8679666

BMW F30 LCI 330e B48X Hybrid High Voltage Inverter Converter 8679666

£1,139.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6978265

BMW Z4 E85 E86 Roadster Interior Fuse Box 6978265

£23.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9389068

Fuse Box BMW F20 F21 F30 F31 F34 Power Distribution Front 9389068

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9230432

BMW X5 E70 Footwell Light Control Module Unit Lear FRM3R VDM 9230432

£151.95

Free delivery: Sep 1 – 8

If paid before 14:00

Part no. 7075944-2

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

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6957347

BMW 6 Series E63 E64 F06 F12 F13 Aerial Antenna Amplifier Module Left N/S

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9371130

BMW F30 Seat Control Unit Seat Module Unit Controller ECU 9371130

£37.95

Free delivery: Aug 28

If paid before 14:00

Part no. 7536512

BMW F30 LCI F45 Mini F60 High Voltage Battery Controller SME Module ECU 7536512

£142.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6955925

BMW X5 E53 X3 E83 Control Unit Sliding Lifting Roof Panorama 6955925

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. RHD-F20-ANDROID-SCREEN

BMW F20 F21 LCI F23 GPS Navigation Sat Nav Display Screen Android Auto 10,25"

£189.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9247465

BMW X5 E70 X6 E71 Body Control Unit Module Junction Box ECU 9247465

£142.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6957762

BMW 5 6 Series E60 E61 E63 Passenger Side Door Airbag Control Module 6957762

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6900582

BMW 7 Series E65 E66 Fuse Board Power Distribution Box

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. rhd-7529723-1

Engine Wiring Loom BMW E60 E61 520i 525i 530i Petrol M54 Wire Ceble 7529723

£28.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9251701

BMW F20 F21 F30 F32 CIC Display Screen Connecting Cable Wiring Loom Lead 9251701

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9119357

BMW 1 3 5 E60 E81 E87 E90 E91 Mini R55 R56 DAB Radio Tuner Module 9119357

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9128602

Cables Wiring BMW E81 E87 LCI Front Bumper PDC Loom Set 9128602

£28.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9167202

BMW E60 E61 LCI E63 E64 Body Gateway Module ECU Control Unit 9167202

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9288304

FEM Module BMW F20 F21 F22 F30 F31 F32 F36 Control Unit 9288304

£47.95

Free delivery: Aug 28

If paid before 14:00

Part no. 8780776

Head Unit BMW F10 F20 F22 F30 Navigation Sat Nav GPS Unit High 8780776

£313.95

Free delivery: Sep 1 – 8

If paid before 14:00

Part no. 6879833

Air Module BMW F20 F21 F22 F30 F31 ECU ICM Control Unit ECU 6879833

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6944962

BMW E60 E61 Centre Console Switch Centre DSC PDC 6944962

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6872319

BMW F30 F31 F32 Towing Hitch Trailer Hook Module Control Unit 6872319

£75.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6814611

BMW 1 3 5 F10 F20 F30 Can Bus Interface Data Terminating Resistor 586509

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 7120204

BMW E93 Cable Wiring Loom Harness Hydraulic Pump 7120204 7191362

£28.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6947786

BMW E60 E61 E63 E64 Steering Column Adjuster Switch 6947786

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9266384

BMW 5 Series F10 F11 LCI Boardmonitor Central Information Display 7" 9266384

£35.95

Free delivery: Aug 28

If paid before 14:00

Part no. 8355056

BMW 5 X5 Series E53 Fuel Tank Flap Actuator 8355056

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9226711

BMW E60 E87 E90 E91 Hands Free Electronics Charging MULF2 Module 9226711

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6857942

BMW F01 F02 Air Suspension Control Unit Rear Axle 6857942

£70.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6807633

Control Unit BMW F01 F07 F10 F11 F25 Air Module ECU Unit Continental 6807633

£37.95

Free delivery: Aug 28

If paid before 14:00

Part no. 8379567

BMW X5 Series E53 Loudspeaker Stereo Left Front Door N/S 8379567

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9274021

BMW F20 F21 F30 F31 F32 Body Control Unit Module REM 9274021

£23.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9181378

Electronics Charging BMW E60 E87 E90 E91 Hands Free Module MULF2 9181378

£51.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9280185

Air Module BMW F10 F11 F01 F02 F03 LCI Control Unit ECU 9280185

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9170453

BMW X5 E70 Footwell ECU Light Control Module Xenon FRM II Lear 9170453

£142.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9271216

BMW X3 F25 Rear Bumper PDC Wiring Loom Parking Sensor Cable Harness 9271216

£56.95

Free delivery: Aug 28

If paid before 14:00

Part no. 8803369

BMW X1 F48 Dashboard Monitor Display Central Information Screen 6,5" 8803369

£142.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9230455

BMW E81 Footwell ECU Light Control Module Basis PL2 FRM3R Lear 9230455

£104.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9291450

BMW F10 Central Gateway Module ECU Control Unit LEAR ZGW-02 4SK 9291450

£23.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9264573-2

BMW X1 E84 ECU Body Control Module Unit Junction Box H2 PL2RR JBBFE IIIR 9264573

£23.95

Free delivery: Aug 28

If paid before 14:00

Part no. 7809001-1

BMW 1 3 Series E87 LCI E90 118d 318d N47 Diesel ECU KIT DDE 7809001 + CAS3 Key

£94.95

Free delivery: Aug 28

If paid before 14:00

Part no. 1393415-1

BMW E90 E91 F10 Mini R50 R52 Change Over Contact Relay Grey 5 Pins Set 1393415

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6844138

BMW 1 3 F20 F30 MINI F55 F56 Radio Remote Control Receiver 434 MHZ 6844138

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 8686085-1

BMW F30 LCI F15 F45 G30 Mini F60 Accumulator Battery Unit High Voltage 8612163

£189.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9170732

BMW X5 E70 CCC Navigation System CD Player Sat Nav Head Unit 9170732

£265.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9200943

BMW 1 3 Series E81 E87 E90 E91 E92 Ultra Sonic Alarm System Module 9200943

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9279822

BMW F20 F21 F30 F31 F32 Rear Body Control Unit Module REM 9279822

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 8506434-1

BMW E81 E87 E90 LCI 118d 318d N47 ECU Kit DDE CAS 3 Key 8506434

£94.95

Free delivery: Aug 28

If paid before 14:00

Part no. 8570676

BMW F30 F32 LCI N57N N57Z Diesel Engine Alternator Generator 230A Valeo 8570675

£42.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9869885

BMW X1 X2 X5 X6 F15 F16 F48 F49 Body Domain Controller BDC Module FEM 9869885

£151.95

Free delivery: Aug 28

If paid before 14:00

Part no. 8577241

BMW F30 F32 LCI 330d 335dX 430d 435dX Alternator Starter Cable B+ 8577241

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. rhd-8507890

Gearbox Wiring BMW E90 E91 LCI 318d 320d N47N Engine Loom Harness Cables 8507890

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6941018

BMW 5 6 Series E60 E61 E63 Airbag ECU Control Unit Centre Vehicle Sensor

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9151517

BMW 5 Series E61 Touring Body Control Module ECU Unit E6X KBM High 9151517

£17.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9337807

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

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 8512291-2

BMW 3 Series E90 E91 LCI N47N 320d 184HP ECU KIT DDE CAS 3 Key 8512291 Manual

£94.95

Free delivery: Sep 1 – 8

If paid before 14:00

Part no. 9347878

Dashboard Monitor BMW X5 F15 Onboard Central Display Screen 10,25" 9347878

£218.95

Free delivery: Aug 28

If paid before 14:00

Part no. 2622505

Amplifier BMW F87 M2 F80 M3 F82 F83 M4 Active Sound Design Control Unit 2622505

£94.95

Free delivery: Sep 1 – 8

If paid before 14:00

Part no. 7438143

BMW F36 Control Unit Module Wing Mirror Memory 5 Pin Left N/S 7438143

£28.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9337879

BMW 1 3 4 Series F20 F21 F30 F31 F34 Power Distribution Fuse Box Front 9337879

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9156654

BMW 3 Series E93 Rear Antenna Aerial Amplifier AM/FM 9156654

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6963013

BMW 5 6 Series E60 E61 E63 Driver Side Door Airbag Control Unit Module 6963013

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 1439743

BMW E46 X5 E53 E60 E65 X3 E83 Z4 E85 Z3 Cable Alternator Starter 1439743

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 7239175-1

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

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9298962

BMW F20 F21 F22 F30 F31 F32 F33 F80 M3 Body Control Unit Module REM V5 9298962

£23.95

Free delivery: Aug 28

If paid before 14:00

Part no. 3417417

BMW X3 Series E83 Boardmonitor Central Information Display Screen 6,5"

£189.95

Free delivery: Sep 1 – 8

If paid before 14:00

Part no. 9176685

Navigation System BMW X3 E83 Z4 E85 Mini R50 R52 DVD GPS Computer Unit

£123.95

Free delivery: Aug 28

If paid before 14:00

Part no. 3412336

BMW X3 E83 Battery Cable Negative Wiring 3412336

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 7823422

ECU Engine Control BMW E81 E87 E90 LCI 118d 318d N47 Diesel DDE 7823422 Manual

£32.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9171948

BMW X5 X6 E70 E71 Air Module Control ECU Unit Module 9171948 0285010250

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9138969

BMW E60 LCI E61 LCI Electronic Driver Circuit Centre Console 9138969

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6957759

BMW E60 E61 E63 Driver Side Door Air Module Control Unit Module 6957759

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 7520912

BMW E60 E61 E63 E64 LCI Cover Electronic Box 7520912

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 8379094

BMW X5 Series E53 Rear Right Door Stereo Audio Loudspeaker O/S 8379094

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6945145

BMW E60 E61 E63 Air Control Module Passenger Side Door 6945145

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6915327-1

BMW E46 E60 E81 E87 E90 E91 F10 F20 F30 2x Relay Make Contact Sky Blue 6915327

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9229873

BMW 1 Series E81 Body Control Module ECU L2 PL2RR JBBFE III Junction Box 9229873

£28.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9171925

BMW E88 Convertible Air Module Sensor ECU Control Unit Module 9171925

£23.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9210857

BMW F01 F07 GT F10 F11 F13 Power Distribution Fuse Box Rear 9210857

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9226325

BMW 1 E82 ECU Body Control Module L1 PL2RR JBBFE IIIR Junction Box 9226325

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 8512498-5

BMW E84 E90 LCI 20dX 320xd N47 177HP ECU Kit DDE 8512498 CAS3 + Key Manual

£123.95

Free delivery: Aug 28

If paid before 14:00

Part no. 7521582

BMW E46 E83 E85 Engine Electronics Unit Box Cover Trim 7521582

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6987692

BMW E87 E90 Navigation System Professional CCC Navi Controller 6987692

£474.95

Free delivery: Sep 1 – 8

If paid before 14:00

Part no. 9176824

BMW X5 E70 Footwell Light Control Module Unit LEAR PL4 FRM II 9176824

£94.95

Free delivery: Aug 28

If paid before 14:00

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