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 3 5 X5 Series E60 N E70 E90 F30 Exhaust Lambda Probe Oxygen Sensor 7801158

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 7624412

BMW 1 3 Series F20 F21 F30 Cable Alternator Starter Base B Wire 7624412

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9251984

BMW F10 F11 F20 F21 F30 Control Unit Module Voltage Transformer VSU180 9233143

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9189200

BMW 1 3 Series E81 E87 E90 E91 E92 Radio Professional CD Audio Player 9189200

£142.95

Free delivery: Aug 28

If paid before 14:00

Part no. 7188487

BMW E93 Convertible Battery Mounting Bracket Clamp Bolt Holder Mount 7188487

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6826984

Air Module BMW F20 F21 F30 F31 Control Unit 6826984 0285013630

£28.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9130047

BMW E92 F32 E61 LCPA Seat Belt Module ECU

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6942677

BMW E60 E61 E63 E65 PDC Parking Control Module Unit ECU 6942677

£75.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6971370

BMW 1 3 X1 Series E81 E82 E84 E87 E90 E91 E92 Power Distribution Box 6971370

£23.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9134707

BMW X5 E60 E61 E63 E64 E70 Control Unit Module Passive Go 9134707

£23.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9365764

Head Unit BMW F10 F20 F22 F30 Navigation Sat Nav High Control Module 9365764

£104.95

Free delivery: Sep 1 – 8

If paid before 14:00

Part no. 8516246

BMW F10 LCI F20 F22 F30 F32 B37 Wiring Harness Engine Glow Plug Module 8516246

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9113064

BMW 5 Series E60 E61 LCI Centre Console Switch Cluster Control Unit ECU 9113064

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. RHD-6974666

BMW E84 E90 E91 Instrument Cluster Speedo Clocks Automatic 6974666

£28.95

Free delivery: Aug 28

If paid before 14:00

Part no. 7160897

BMW X5 E53 E60 E61 E65 E81 E87 E90 E91 Turn Indicator Silver Bulb 7160897

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 8636064

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

£66.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9326010

Radio Player BMW F20 F21 F30 F31 CD DAB Bluetooth Head Unit Audio Player 9326010

£61.95

Free delivery: Aug 28

If paid before 14:00

Part no. 8621840

BMW 1 3 Series F20 F21 F30 LCI Starter Motor Engine 8621840

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. 7457871

BMW 1 3 Series F20 F21 F30 LCI Headlight Control Unit Module FLE2 7457871

£75.95

Free delivery: Aug 28

If paid before 14:00

Part no. 8734748

Telematics Control Unit BMW F20 F31 LCI F32 Module ATM ECE 4G WLAN 8734748

£61.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6929347-1

BMW 1 3 SERIES E82 E90 E92 Roof Antenna Aerial Shark Fin GPS Radio TeL 1682646

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. rhd-3451585

BMW X3 E83 Instrument Cluster Speedo Clocks Automatic 3451585

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9261599

BMW F20 F21 F22 Rear Bumper PDC Ultrasonic Sensor Estoril Blue 2

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9381114

BMW F20 F21 F30 F31 F32 Mini F56 F57 Seat Control Unit Module Heating 9381114

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9217004

Battery Cable Plus BMW X5 E70 E70N LCI X6 E71 Positive Pole 9217004

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 8512499

Engine Control Unit BMW E81 E87 E90 E91 LCI N47 Diesel ECU DDE 8512499

£37.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9134661

BMW E87 E90 E91 E92 Seat Control Unit Module ECU 9134661

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9267514

BMW F10 F11 F12 Central Gateway Module ECU Control Unit Lear ZGW-02 High 9267514

£37.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9273671

BMW 4 F33 Cabrio Convertible DAB Digital Radio Aerial Antenna Amplifier 9273671

£66.95

Free delivery: Aug 28

If paid before 14:00

Part no. 7579142-13

BMW 1 3 Series E87 LCI E90 120i 320i Petrol ECU Kit N43 DME 7579142 CAS3 Key

£113.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6809050

BMW F20 F30 Rear Electronic Module REM Fuse Box Control Unit V2 ECU 6809050

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6911024

BMW Z4 E85 E86 Battery Mounting Bracket Part Holder 6911024

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9149843

BMW E81 E87 LCI E90 Hands-Free Bluetooth Module High MULF2 9149843

£47.95

Free delivery: Aug 28

If paid before 14:00

Part no. 7492026-1

Headlight Control Unit BMW F20 F21 F30 LCI Module FLE2 7492026

£85.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6752866

Accelerating Sensor BMW E60 E61 E63 E64 E65 E70 Control Unit Module 6752866

£28.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9134667

BMW X5 E70 E87 E90 E91 E92 Seat Control Unit Module ECU 9134667

£37.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6927572

BMW X3 E83 Z4 E85 Wiring Seat Occupancy Cable 6927572

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9168336

BMW X1 E84 Diversity Aerial Antenna Amplifier DAB 9168336

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9283247

BMW X1 E84 Radio Stereo CD Player Navigation Nav Head Unit 9283247

£94.95

Free delivery: Aug 28

If paid before 14:00

Part no. 7801712

BMW E60 E61 E90 E91 330d 530d M57N2 Engine DDE Control Unit 7801712 Automatic

£142.95

Free delivery: Aug 28

If paid before 14:00

Part no. 7520912-1

BMW E60 E61 E63 E64 LCI Lid Cover Panel Electronic Box 7520912

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6974890-MYS

BMW E87 E90 E91 LCI PDC Ultrasonic Parking Sensor Mysticblau Blue - A07

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9251748

BMW E81 E87 E90 E91 E92 LCI Combox Telematics Module Navigation 9251748

£113.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9247467

BMW E82 ECU Body Control Module Unit PL2RR JBBFE L1 61359247467 9247467

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. rhd-7570588

BMW E81 E87 LCI E90 116i 316i N45N Wiring Harness Injection Valve Ignition Loom

£23.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9494391

BMW F20 F21 F22 F30 F44 F45 F46 Fuel Pump ECU Module Control Unit 9494391

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9306085

BMW F30 F31 Seat Module Control Unit Memory Front Left Right N/O/S 9306085

£42.95

Free delivery: Aug 28

If paid before 14:00

Part no. 7595179-1

BMW E81 E87 LCI E90 N43 170HP Engine Control ECU Kit DME 7595179 Manual

£189.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9224588

BMW E81 Footwell Light Module Control Unit ECU BASIS PL2 FRM3R 9224588

£137.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6819336

BMW F20 F21 F22 F30 F31 F32 F33 Fuse Box Body Control Unit Module REM V5 6819336

£23.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9252637

BMW X1 E84 Parking Control Module Unit PDC ECU 9252637

£56.95

Free delivery: Aug 28

If paid before 14:00

Part no. 3420786

BMW X3 E83 Light ECU Control Module Unit Lear LM MAN.LWR 3420786

£42.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9261111

BMW 1 3 4 Series F20 F21 F30 F31 F32 Power Distribution Fuse Box Rear 9261111

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9340998

BMW 1 2 Series F21 F22 Wiring Passenger Side Loom Front Door Left N/S 9340998

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9216337

BMW F20 F21 Amplifier Holder Audio Catch Bracket Trim Panel 9216337

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6954130

BMW 1 3 Series E87 E90 E92 Front Seat Adjustment Switch Right O/S 6954130

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 7316147

BMW F30 F31 F34 Headlight Module Xenon Headlamp Control Unit Lear TMS 7316147

£61.95

Free delivery: Aug 28

If paid before 14:00

Part no. 8515466

Engine Wiring BMW E90 E91 LCI 318d N47N Diesel Manual Cable Loom Harness

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6982387

BMW 1 3 Series E81 E87 E90 E91 E92 E93 Parking Control Module Unit PDC 6982387

£94.95

Part no. 9284973

Display Screen BMW F10 F11 On Board Central Information Monitor 6,5" 9284973

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6957123

BMW 3 Series E92 Front Left N/S Door Wiring Cables Harness Loom 6957123

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 3452285

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

£208.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9389657

BMW F20 F21 F30 F31 Bluetooth Teleservices GPS Telematics Module 9389657

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9131649

Driver Seat Cable BMW E81 E82 E87 E88 Sensor Mat Wiring 9131649

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6887358

BMW F10 F11 EMF Module Parking Brake Unit Electric Control 6863800

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6824383

BMW 1 2 3 4 Series F20 F21 F22 F30 F31 F32 F36 Module Control Unit FEM 6824383

£94.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9249080-1

BMW E87 LCI Footwell Light Control Unit Module ECU Lear FRM3R PL2 9249080

£75.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6798872

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

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9231321-1

BMW X3 F25 X4 F26 Dashboard Monitor Onboard Central Display Screen 6,5" 9231321

£28.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9298960

REM Module BMW F20 F21 F30 F31 F32 Body Control Unit 9298960

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6856747

BMW F10 F20 F30 Tow Bar Trailer Towing Control Module Unit AHM 4 6856747

£51.95

Free delivery: Aug 28

If paid before 14:00

Part no. 7850995

Engine Wiring BMW F80 M3 F82 M4 S55 Inject Loom Cable Harness Injector 7850995

£23.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9252651

BMW 1 2 3 Series F20 F21 F22 F30 Radio Remote Control Receiver 868 MHZ 9252651

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9119496

BMW E91 ECU Body Control Module H4 Electronic Box PL2 JBBFE 9119496

£32.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9370870-1

Dashboard Monitor BMW X3 F25 X4 F26 Onboard Central Display Screen 8,8" 9329953

£170.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9387262

FEM Module BMW F20 F21 F22 F30 F31 F32 F36 Body Control Unit ECU LR01 9387262

£80.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9258164

BMW E81 E82 E87 E88 E90 E91 E92 E93 Radio Professional CD 9258164

£56.95

Free delivery: Aug 28

If paid before 14:00

Part no. 7608801

Valve Cable BMW F20 F21 F30 F31 Petrol N13 Valve Tronic Wiring Harness 7608801

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6824386

Fuse Box Unit BMW F20 F22 F30 F32 Module ECU Control FEM 6824386

£75.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6943062

BMW E60 E63 E64 LCI Body module ECU 61356943062 6943062

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6809374

BMW F01 F07 F10 F11 F12 F25 CAS4 Module Control Unit Key Reading 6809374

£37.95

Free delivery: Aug 28

If paid before 14:00

Part no. 7631558

Engine Starter BMW F20 M135i F30 335i F32 435i F80 M3 F82 M4 Motor Start 7631558

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9264924

BMW F01 F02 F10 F11 F13 Power Distribution Fuse Box Rear 9264924

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9191568

BMW X5 E70 CCC Navigation System CD Player Sat Nav Head Unit 9191568

£208.95

Free delivery: Aug 28

If paid before 14:00

Part no. 8375964

BMW 5 7 X5 Series E38 E39 E53 Xenon Headlight Aim Control Unit Module 8375964

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9226328

BMW E90 Body Control Module Junction Box H1 PL2RR JBBFE IIIR 9226328

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9325653

BMW F20 F21 F22 F30 F32 Front Electronic Module Control Unit FEM 9325653

£47.95

Free delivery: Sep 1 – 8

If paid before 14:00

Part no. 1709317

BMW X5 E53 E60 E61 E63 E64 Petrol Engine Ping Knock Sensor 1709317

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9114448

BMW 5 Series E61 Touring Body Control Module ECU Control Unit High 9114448

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6939069

BMW X5 E53 X3 E83 Control Unit Xenon Adaptive Headlight Ballast 6939069

£42.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6962678

BMW E81 E87 E91 Switch Cluster Steering Column Wiper Stalk 6962678

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. 7394651

BMW 5 F11 Touring Rear Boot Trunk Lid Tailgate Control Unit Module ECU 7333928

£18.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6814596

BMW 1 2 3 4 Series F20 F21 F30 F31 F32 Rain Light Solar Sensor 6814596

£42.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9289115

Radio Professional BMW E81 E87 E90 E91 LCI Autoradio CD Bluetooth 9289115

£142.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9294309

Dashboard Monitor BMW X3 F25 X4 F26 Onboard Central Display Screen 6,5" 9294309

£94.95

Free delivery: Sep 1 – 8

If paid before 14:00

Part no. 9176078

BMW E60 E61 LCI E63 E64 Body Gateway Module ECU Control Unit 9176078

£13.95

Free delivery: Aug 28

If paid before 14:00

Part no. 9195756

BMW E60 E61 LCI M-ASK M-Audio Navigation System Controller Player 9195756

£94.95

Free delivery: Aug 28

If paid before 14:00

Part no. 7850599

BMW F80 M3 F82 M4 Wheel Accelerator Sensor Cable Rear Axle Suspension 7850599

£23.95

Free delivery: Aug 28

If paid before 14:00

Part no. 6820235

BMW F20 F30 Mini F55 F56 Control Unit Air Conditioning Module 6820235

£18.95

Free delivery: Aug 28

If paid before 14:00

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