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 E60 E90 E92 Carrier Bracket Holder Engine Control Module Unit 7520902

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9390396

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

€94.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9318368

BMW X3 F25 F06 F06N F07 F07N F10 F10N F11 CAS4 Comfort Control Module 9318368

€56.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8585384-1

BMW X4 F26 X5 F15 N57 Diesel Engine Control ECU Kit Set 8585384 Automatic

€393.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9221953

BMW X5 E70 Interior Inner Wiring Loom Harness Cable 9221953

€56.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9192665

BMW X3 F25 Positive Battery Clamp Point Cover Wiring Loom 9192665

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7896848

BMW 5 Series E60 M5 Battery holder Hold Down Strap Bracket 7896848 6938434

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6949382

BMW E65 E66 Rear Door Wiring Harness Loom Cable 6949382

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6977054

BMW X5 E70 Driver Side Front Right O/S Door Cable Harness Wiring 6977054

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6928658

BMW E87 LCI Front Door Wiring Loom Drivers Side 6928658

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9184560

BMW E65 E66 Seat Control Module Unit ECU 9134633 9184560

€85.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8483816

BMW X3 G01 X4 G02 Cable Alternator Starter Base B Wire Line 8483816

€56.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6860182

BMW F30 F31 F34 Acc Sensor Distronic Radar Module Unit 66316860182

€393.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9365780

BMW X5 F15 Wiring Front Right O/S Door Harness Loom 9365780

€42.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9117831

Negative Battery Lead BMW F45 F46 X1 F48 IBS Minus Pole Cable 9117831

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7789225

BMW E65 E66 730d M57N Diesel Cable Starter-Base B+ 7789225

€28.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7800167

BMW E70 LCI E90 E91 LCI F10 F11 N57 Lead Preheater Wiring System Diesel 7800167

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9200943

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

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8639595-9

BMW F30 320iX N20 163HP Engine Unit ECU Kit DME 8639595 FEM + Key Automatic

€474.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7581848

BMW E81 E87 LCI E90 116i 316i N45N 116HP Engine ECU Unit DME 7581848 Manual

€208.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9214812

BMW E88 E93 LCI Air Module Control Unit ECU 9214812

€28.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6837092

BMW G30 G12 Fuse Relay Box Rear Trunk Power Distribution B + Box Basis 6837092

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9350313

BMW F90 M5 G11 G30 Fuse Box Power Distribution Unit Front Right O/S 9350313

€32.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9364817

BMW X1 E84 ECU Body Comfort Control Module Junction Box PL2RR JBBFE IIIR 9364817

€42.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 1388911-2

BMW E36 E38 E85 Mini R52 R57 4x Change-Over Contact Relay Violet Set 1388911

€28.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9436288

BMW G20 G21 Door Wiring Loom Harness Cable Rear Left N/S 9436288 9436287

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8379375

BMW X5 E53 Loudspeaker Loud Speaker Tweeter Front 65138379375 8379375

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9315981

BMW F33 F33 LCI Seat Wire Harness Cable Loom Front Right O/S 9315981

€94.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8730190

BMW G30 G31 Rear Door Wiring Loom Harness Cable Right O/S 8730190

€42.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8573260-10

BMW F20 F21 116d Diesel N47N 116HP ECU Kit DDE 8573260 + Keys + FEM Manual

€189.95

Free delivery: Aug 5 – 10

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

€28.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8519668

BMW E90 E91 LCI 320d N47N 184HP Engine Control Unit ECU DDE 8519668 Manual

€51.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 3419515

BMW E83 LCI Valvetronic Starter Cable Wire Loom 3419515

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6912817

BMW E46 Z4 E85 E86 Antenna Amplifier Diversity 6912817

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6954298

BMW E81 E87 E90 E91 Adapter Lead Medium Range Loud Speakers 6954298

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9196935

Seat Module BMW X1 E84 E87 E90 E91 Seating Control Unit ECU 9196935

€28.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9282424

BMW 3 5 Series F10 F30 Control Unit Module Top Rear Side View Camera 9282424

€89.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9339192

BMW F45 F46 Battery Cable Positive Wire Lead Terminal 9339192

€32.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9118468

BMW X5 X6 Series E70 E71 Seat Backrest Adjustment Adapter Lead Cable 9118468

€27.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9282285

BMW X3 F25 Central Gateway Module Control Unit ECU 9282285

€47.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8408383

Parking Sensor PDC BMW X5 E53 Front Cover Control Primed 8408383

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9226325

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

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8572418-2

BMW X3 F25 Diesel 2.0dX 184HP N47N Engine ECU Kit DDE 8572418 Key CAS4 Automatic

€170.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9303543

BMW F20 F30 F31 Fuse Box Electrical Power Distribution 9303543

€56.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7953075

BMW F70 F74 X1 U11 X2 U10 Mini F65 F66 Battery Alternator Starter Cable 7953075

€94.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9380323

BMW 5 Series F10 Steering Column Module Electronic Control Unit ECU 9380323

€66.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9273671

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

€75.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9436289

BMW G20 G21 Rear Door Wiring Loom Cable Control Unit Left Right N/O/S 8718245

€32.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9118467

BMW X5 X6 Series E70 E71 Seat Backrest Adjustment Adapter Lead Cable 9118467

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8645325

Alternator BMW F20 F21 F30 F31 LCI F32 F33 F34 Petrol Engine Unit 180A 8645325

€37.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7195768

BMW 7 Series E65 E66 E67 Battery Holder Hold Down Strap Bracket 7195768

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8517862-6

BMW F20 F30 F32 120d 320d 420d N47N 184HP ECU Kit DDE 8517862 + Key + FEM Manual

€151.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9146329-1

BMW X5 E60 E61 E65 E70 Front Left N/S Seat Angle Adjustment Drive 9146329

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7640132-1

Alternator BMW F20 LCI Mini F30 F56 F60 Alternator Generator DENSO 150A

€37.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9459673

Seat Module BMW X4 F26 F20 F30 Front Driver Side Control Unit ECU 7943747

€61.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9221863

BMW X5 X6 E70 E71 Front Seat Control Module Unit Left Right N/O/S 9221863

€89.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8586540-3

BMW F30 F32 LCI 330d 430d N57N 258HP Control Unit ECU Kit DDE 8586540 FEM Key

€203.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7592080-7

BMW E60 LCI 523i N53 190HP Engine Control Module DME Kit 7583332 Manual

€450.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9175883

BMW E60 E60 LCI E61 E61 LCI Front Door Wire Harness Loom Passenger Side 9175883

€66.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9321023

BMW F45 X1 F48 Mini F55 F56 B+ Junction Terminal Power Distribution Box 9321023

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6812250

BMW X1 F48 Door Wiring Loom Harness Cable Front Passenger Side N/O/S 6812250

€42.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9233034-SCG

PDC Parking Sensor BMW X5 E70 F10 F11 F12 Ultrasonic Sensor Space Grey 9231283

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6960227

BMW E65 E66 Sensor Air Bag Front Left Door N/S Module Airbag 6960227

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9381114

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

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8576341-14

BMW F20 F21 F30 F31 118d 318d Engine Control ECU DDE Kit FEM Key 8576341 Manual

€161.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6990089

BMW 6 X3 Series E63 E83 Radio Antenna Amplifier Suppression Filter

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7514357

BMW Z4 E85 Roadster Cabrio Cable Alternator Starter Base B 7514357

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6928363

BMW E60 E61 Rear Bumper PDC Parking Sensor Wiring Loom 6928363

€42.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8512500-1

BMW E81 E82 E87 LCI E88 123d Engine N47S ECU Kit DDE 8512500 CAS3 + Key Manual

€317.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7118854

BMW Z4 Series E85 Cable Loom Wiring Harness Rear Window Heating 7043906

€56.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8580053

Starter Cable BMW G30 G31 G32 Alternator Wiring Starter-Base B+ 8595355

€37.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8574372-3

BMW F30 330d F32 430d N57N 258HP Engine Unit ECU Kit DDE 8574372 Key FEM

€213.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9268710-1

BMW F01 Display Screen On-Board Central Information Monitor 10,25" 9241819

€32.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6819936

BMW F30 F31 F32 F15 F16 Rear Door Card Light Lamp LED Wiring Harness 6819936

€51.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6917557

BMW Z4 Z3 E36 E85 Module Radar Burglar Alarm Sensor 6917557 6963225

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9128569-2

Wiring Harness BMW E81 E82 E87 LCI E88 Air Valve Air Flap Cable Wire 9128569

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9149843

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

€56.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8506281-2

BMW E87 LCI E90 116d 316d N47 Engine ECU KIT DDE 8506281 + CAS3 + Key Manual

€89.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9222071

BMW F07 BCM Body Control Module Unit Controller 9222071

€47.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8570849

BMW F20 F21 F30 F31 LCI 116i 118i 318i B38 Petrol Engine Starter Motor 8570849

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9289007

BMW 5 F10 F11 On-board Central Information Display Screen Monitor 6,5" 9289007

€42.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9390835

Sound Amplifier BMW X5 F15 X6 F16 Active Harman Becker Design 9390835

€37.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8582280-11

BMW F20 F30 F31 118d 318d N47N 143HP Engine Unit ECU DDE Kit 8582280 FEM + Key

€165.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8649179

BMW X5 F15 Positive Wiring Harness Cable Battery 8649179

€89.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6807332

BMW G30 530e 530eX B48X Hybrid Battery Wiring Positive Under Floor Cable 6807332

€37.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8485065

BMW G11 G12 G14 G15 G16 G30 G31 G32 G38 Positive Battery Cable Wire 8485065

€47.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6940763

BMW 7 Series E65 E66 E67 Ultra Sonic-Module 6940763

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7811700-1

BMW 1 3 Series E81 E87 E90 E91 120d 320d N47 Engine Control Unit ECU DDE 7811700

€113.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6935599

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

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7514342

BMW E34 Z4 E85 Base B Terminal Point Engine Compartment 7514342

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6819934

BMW X5 F15 X6 F16 Front Door Card Light Wiring Loom Left Right N/O/S 6819934

€32.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7618644

BMW Z4 Series E89 Roadster Petrol N20 Cable Alternator-Starter-Base B 7618644

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9345374

BMW F10 LCI Light Control Footwell Module ECU Unit FRM3 9345374

€70.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9187011

BMW F01 F07 GT Console Lightning Centre LED Lamp Light Cable Wiring 9187011

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7210575-2

BMW F06 F12 F13 Rear Lamp Tail Light Side Panel Wiring Harness Left N/S 7210575

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9355549

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

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8373700

BMW E60 E63 E87 E90 E91 Relay Make Contact White Green 8373700

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9261111

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

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7943752

BMW X5 F15 F20 F21 F22 F23 F30 F45 F46 Electric Seat Control Module ECU 7943752

€42.95

Free delivery: Aug 5 – 10

If paid before 14:00

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