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 E39 Alarm Sensor Comfort Control Module Unit ECU 55892110

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9281718

Lane Departure Warning BMW F01 F02 LCI X4 F26 ECU Control Unit 9281718 F01

€85.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8795477

BMW G20 Power Distribution Box LIN Module Control Unit ECU 8795477

€37.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7944003

BMW G30 G31 G11 G32 GT PDC Module Parking Assist Distance Control Unit 7944003

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8649179

BMW X5 F15 Positive Wiring Harness Cable Battery 8649179

€89.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6939890

BMW E87 E81 E92 Relay Plug Control Module Unit Wiring 6939890

€23.95

Free delivery: Nov 12 – 13

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Part no. 9389220

BMW Mini Cooper F56 Wiring Passenger Loom Front Left N/S Door Cables 9389220

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5A83C36

BMW F74 Gran Coupé X1 U11 Positive Battery Terminal Cable Wire B38A15P 5A83C36

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 1859213

BMW F10 LCI LED Headlight Lamp Module Control Unit 1859213

€32.95

Free delivery: Nov 12 – 13

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Part no. 6938213

BMW E90 LCI Door Wiring Loom Wire Cable Harness Front Right O/S 6938213

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7300271-2

BMW F01 Rear Tail Light Wiring Harness Cable Inner Left N/S 7300271

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9878327

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

€37.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9257426

Fuse Box Grouping BMW F10 F11 Fuse Placement Map Card Diagram 9257426

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9381113

Air Con Module BMW F20 F30 F31 Mini F55 F56 Air Conditioning A/C Unit 9381113

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9308362

BMW E81 E82 E88 FRM3R Footwell Light Control Modue Unit ECU 9308362

€203.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9284845-1

BMW F06 F12 F13 Sensor Pedestrian Protection PTS Control Unit 9261963

€104.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9231283-IBB

PDC Parking Sensor BMW X5 E70 F10 Ultrasonic Sensor Imperial Blue A899231283

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6788164

BMW E60 LCI E61 LCI Active Steering Control Unit Module ECU 6788164

€327.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8570659

Wiring BMW X3 F25 N47N Engine Automatic Gearbox Module Wiring Harness 8570659

€47.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9878658

BMW F20 F30 F31 LCI Mini F55 F56 Compensator LTE UK Control Unit Module 9878658

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9455040

BMW G30 530e G20 330e B48X Hybrid CSC Wiring Harness Electrical Loom 9455040

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7387549-2

BMW F32 Bi-Xenon Headlight Lamp Light AKL Wiring Cable Front Left N/S 7387549

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9426353

BMW G20 330e High Voltage Charging Cable Plug In Hybrid 9426353

€51.95

Free delivery: Nov 10 – 13

If paid before 14:00

Part no. 9312765

BMW F01 F06 F10 Junction Box Electronic Control Unit 9312765

€104.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6913363

BMW E65 Glovebox Glove Box Dash Storage Wiring Harness Cable 6913363

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9325552

BMW F06 Gran Coupe F12 F13 Parking Brake Wiring Loom Harness Cable 9325552

€56.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9274276

BMW F07 Gran Tourismo Headlight Footwell Light Control Module FRMIII 9274276

€51.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9385026

BMW F10 F01 F07 F11 F25 Air Module Control Unit Sensor ECU 9385026

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5A0C047

BMW G20 G21 Front Door Wiring Loom Harness Cable Driver's Side 5A0C047

€56.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6949382

BMW E65 E66 Rear Door Wiring Harness Loom Cable 6949382

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9238195

Fuse Box Grouping BMW F10 F11 F12 Fuse Placement Map Card Diagram 9238195

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9453978

BMW G20 G21 G30 G31 Communication Wiring Harness Loom 9453978

€89.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9171984

BMW E60 E61 E63 E64 LCI Control Unit Lane Departure Warning Module ECU 9171984

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6928267

BMW E65 E66 E67 Gateway Sensor Air Module Control Unit 6928267

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8798189-1

Basic Head Unit BMW F45 X1 F48 Mini F55 F56 Sat Navigation Radio Stereo 8798189

€218.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7555188

BMW 5 6 Series F10 F11 F12 F13 Control Unit Box Cover 7555155

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8570676-1

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

€56.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7634061

BMW F10 Engine Transmission Module Cable Loom Wiring Harness 7634061

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8650791

BMW G11 G12 G20 G30 HV Accumulator Battery Positive Cable Wiring Plug 8650791

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7300267-2

BMW F01 F02 LCI Rear Tail Light Inner Wiring Harness Cable Plug Left N/S 7300267

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9225182

Rear Bumper Antenna BMW E93 E93N LCI Aerial Telephone 6970701

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9207416

BMW X6 E71 Map Card Fuse Box Grouping Diagram 9207416

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7801711-1

BMW X3 E83 2.0d M47N2 Engine Control Unit Module ECU DDE 7801711 Manual

€227.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9438731

BMW F20 F21 F22 F30 F31 F32 F36 Body Control Module Unit FEM LR01 9438731

€151.95

Free delivery: Nov 12 – 13

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: Nov 12 – 13

If paid before 14:00

Part no. 9339829

BMW G01 G30 Battery Jump Start Terminal Power Distribution Unit 600W 9339829

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6801326

BMW F15 Door Wiring Harness Loom Cable Front Left N/S 6801453

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9360371

BMW X6 F16 Fuse Relay Box Control Unit Power Distribution 9360371

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9355560

BMW G30 G31 G11 G12 Hybrid Negative Battery Cable Lead Wiring 9355560

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8585380-1

BMW F30 330d F32 430d N57N 258HP Control Unit ECU Kit DDE 8585380 FEM Key

€284.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7810950-9

BMW X3 E86 E90 330d 530d M57N2 218HP Engine Control ECU DDE 7810950 Automatic

€222.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7928461-1

BMW G11 G12 G29 G31 G38 Radio Remote Control Receiver Module Unit 7928641

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8590045

BMW G20 G21 G01 G02 B47B B47D Engine Injector Module Wiring Harness 8590045

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5B79167

BMW F74 Gran Coupé FDR High REDE Control Unit ECU Front Driver Door 5B79167

€180.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6868932

BMW F10 F11 F13 F06 VDC Module Rear Suspension Level Control Unit Module 6868932

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7542934-1

BMW E60 E61 E65 N62N Petrol Alternator Generator 180A 14V 7542934

€89.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9456484

BMW G20 G21 330e Hybrid Charging Port Socket Cable 9456484

€170.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9267980

BMW F10 Fuse Location Diagram Map Fuse Grouping 9267980

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9468429

BMW F45 LCI Battery Cell Module Supervision Circuit Control Unit 225xe 9468429

€170.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9241331

BMW X1 E84 USB AUX-IN Socket Plug 9241331

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8714773

BMW 5 G30 F90 M5 Door Wire Cable Harness Loom Wiring Front Driver's Side 8714773

€85.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8364522

BMW E64 Wiring Harness Loom Cable Connector Plug Wire 8364522

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8044501

BMW F06 F10 F12 F13 LCI Fuel Injectors Wiring Loom Harness Cyl 1-4 S63N 8044501

€75.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7809944-7

BMW E70 Engine Control Unit ECU M57 3.0 Diesel 231HP Automatic 7810095

€180.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6850424

BMW X3 F25 ICM Air Module Control Unit SRS ECU 6850424

€61.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9365212

BMW X5 F15 Door Light Wiring Harness Cable Loom Front Left Right N/O/S 9365212

€89.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5A656B7

BMW F40 ACSM5 Control Unit Air Module ECU Control Module 5A656B7

€127.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9337233

BMW F32 F33 F82 F83 M4 Door Wiring Front Harness Loom Cable 9337233

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6977066

BMW X5 E70 Door Cable Harness Wiring 6977066 6937277

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6974890-MYS1

BMW E87 E90 E91 LCI PDC Sensor Ultrasonic Parking Mysticblau Blue Set x4

€42.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9291964

BMW 1 Series F20 Front Left Door N/S Wiring Loom Harness Cables 9291964

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 3414469

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

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9339274

CAS4 Module BMW F01 F07 F10 F11 F12 X3 F25 Key Reading Control Unit 9339274

€66.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 2248296

BMW 3 X5 Series E46 E53 3.0d Diesel M57 Alternator Generator 150A 2248296

€56.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6900554

BMW E64 Connector Socket Plug Wire Harness Loom Wiring 6900554

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5A8E799

BMW G20 Radio Multimedia Satellite Navigation Head Unit 5A8E799

€284.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7581848-1

BMW E81 E87 LCI E90 116i 316i N45N ECU Kit DME CAS3 + Key 7581848

€455.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8603352-7

BMW F20 F30 116i 316i N13 136HP Engine ECU Kit DME 8625241 FEM Key Lock Manual

€569.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9210037

BMW X1 E84 Air Conditioning Heater Loom Harness Cable Wiring N47 9210037

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9287756

Loudspeaker Centre BMW F25 F15 Central Woofer Audio Speaker 9287756

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8582279-4

BMW F30 320d ed Diesel N47N 163HP Engine Control Unit ECU DDE 8582279 Manual

€70.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9227470

BMW 1 Series F20 F21 LCI Antenna Aerial Noise Suppression Filter 9227470

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7634297-5

BMW F20 N13B16A 170HP Engine Control Module ECU Kit DDE 7634297 Automatic

€427.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9113064

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

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9231443

BMW 3 Series F30 F80 M3 Radio Antenna Amplifier Suppression Filter 9231443

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9470053

BMW F45 Battery Management Electronics Control Module 9470053

€51.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8795109

BMW X3 G01 Rear Bumper PDC Wiring Loom Parking Sensor Cable Harness 8795109

€85.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9300859

BMW X5 F15 Fuel Tank Cable SCR AdBlue Unit Adapter Wiring Harness Diesel 9300859

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8578945-6

BMW F20 F21 F30 116d 316d N47N 116HP Engine Control ECU Kit DDE 8578945 Manual

€237.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7646814-1

BMW F10 F20 F30 LCI Alternator Generator Unit Diesel B47 7646814

€66.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8374991

BMW Z4 E85 E86 Negative Minus Battery Cable Lead Wiring Loom 8374991

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6907520

BMW 5 X5 Series E39 E53 Dual Band Cable Compensator Hands Free Phone 6907520

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6918567

BMW 7 Series E65 E66 E67 Seat Control Unit Module Heating 6918567

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6928523

BMW 3 Series E46 M47N Diesel Negative Earth Cable Battery 6928523

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6801327

BMW X5 F15 Wiring Harness Loom Cable 6801327

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9311280

BMW X3 F25 Fan Heater Blower Unit Motor Wiring Cable Harness Loom 9311283

€33.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6868600

BMW F20 F22 F30 F32 F36 Air Module Domain Control Unit Module ICM Plus 6868600

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8631725-7

BMW F22 F30 F32 ECU Kit DME N20 184HP Petrol 220i 320i 420i 8631725

€560.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5A69273

BMW G20 330e Hybrid Battery Positive Cable Wiring 5A69273

€56.95

Free delivery: Nov 12 – 13

If paid before 14:00

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