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 X5 F15 Control Unit Bracket Boot Trunk Module Unit Mount Holder 9296975

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 7514342-1

BMW 5 Z4 Series 1 E34 E85 Base B Terminal Point Engine Compartment 7514342

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 9344677

BMW 2 3 Series F22 F80 M3 F82 M4 Wiring Loom Harness Rear Trunk Lid 9344677

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 7641649

BMW F10 F20 F30 N20 125i 328i 528i N20 Wiring Harness Engine Module 1 7641649

€85.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 6955116-BAQ

BMW 1 3 Series E81 E82 E87 E88 E90 E91 Ultrasonic Sensor PDC Barriquerot 6955116

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 9251979

BMW X3 F25 Footwell Light Module Control Unit FRMIII 9251979

€61.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 9210923

BMW F10 Front Seat Wiring Loom Electrical Cable Harness 9210923 9210922

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 8515491

BMW X3 F25 Battery Cable 30dX 35dX Wiring Alternator Starter Cable B+ 8515491

€37.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 8377658

BMW X5 SERIES E53 TV amplifier 8377658

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 6935667-1

BMW Z4 Series E85 Roadster Battery Lead Positive Cable Plus Pole 6935667

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 9308369

BMW Z4 E89 Light Footwell Control Module Unit 9308369

€42.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 6928369

BMW E60 Dashboard Solar Receiver Sensor Plug Socket Wiring 6928369

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 8635808-1

Engine Wiring BMW F20 F30 F31 LCI B38 Loom Module 2 Harness Cable 8635808

€75.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 8517874-6

BMW F20 F21 116d N47N 116HP ECU Kit DDE 8517874 + Key + FEM + Lock Manual

€218.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 9252813

BMW 5 7 Series F01 F02 F10 F11 Power Distribution Fuse Box Rear 9252813

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 7555185

E-Box Fan BMW X5 E70 X6 E71 Sunon Cooler PSD1205PIBX-A 13.5V 7555185

€104.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 6942430

BMW Z4 E85 E86 Tilt Sirene Speaker Alarm With Inclination Indicator 6942430

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 5A21BF0

BMW F20 F21 F30 LCI F36 B48 184HP Engine Control ECU DME 5A21BF0 Automatic

€222.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 8600358

BMW F20 F30 LCI MINI F55 F56 Integrated Relay Supply Module 8600358

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 9291954

BMW F20 F21 Front Door Wiring Harness Cable Right O/S 9291954

€28.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 5A374F9

BMW F40 Radio CD Player Head Unit Navigation Sat Nav CIC Alpine 5A374F9

€450.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 8736251

BMW X4M F98 X4 G02 X3 G01 Rear Fuse Box Power Distribution Fuse Box 8736251

€66.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 7075944-2

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

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 9282069

BMW 5 Series F10 F11 Cable Loom Front Driver's Door Wiring Harness 9255986

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 6937229

BMW E65 E66 Light Module Control Unit Left N/S 6937229

€32.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 9189905

BMW X5 E70 X6 E71 Safety Control Unit Air Module Bag ECU Bosch 9189905

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 6873418

BMW 1 2 Series F20 F21 F30 Brake Disc Protection Plate Front Right O/S 6873418

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 8578995-1

BMW F10 520d F20 320d N47N 184HP Engine Module Unit ECU DDE Kit 8578995 Key CAS4

€170.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 8620771

BMW F20 F21 F30 F32 N55 Power Distribution Module Bracket Cover Carrier 8620771

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 3451658

BMW 3 X3 Series E46 E83 LCI Earth Cable Flow Electric Battery Negative 6919584

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 8844293

BMW X1 U11 High-Voltage Battery Module Connector Wiring Harness Cable 8844293

€51.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 9192666

BMW F01 F10 F11 Cover Positive B Battery Terminal Point Case 9192666

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 913463601

Seat Module BMW E65 Front Seat Control Unit Module ECU 913463601

€32.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 8367769

BMW X3 Series E83 Battery cable holder mounting parts B Base 8367769

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 7616500

BMW E90 E91 E92 N52 N52N Engine Starter Motor Valeo 7616500

€37.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 9442117

BMW 1 2 Series F40 F44 IBS Negative Battery Lead 9442117 61219442117

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 6995617

BMW F40 F44 G20 G21X5 G05 X6 G06 Immobilizer Emergency Start Coil 6995617

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 7848839

BMW F80 F82 F91 F92 Trunk Boot Lid Automatic Smart Openning Sensor 7848839

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 9294912-2

BMW F10 X5 F15 Rear Seat Compartment Screen Display 9,2" Surround Trim 9294912

€32.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 9361116

BMW F10 LCI Body Control Module ECU Unit JBBFEIII V2 PL6 9361116

€89.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 6991400

BMW I4 G26 High Voltage Battery Inverter Control Jump Start Unit 6991400

€32.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 9289385

BMW F10 F34 GT Telematics Module Bluetooth Telematik Control Unit 9289385

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 9233009

BMW F33 F83 M4 Convertible DWA-Alarm System Module Unit ECU 9233009

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 8689723-3

BMW F20 M140i B58 340 HP ECU DDE Key Kit Petrol 8689723 6843898 Automatic

€560.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 9316568

BMW X5 F15 X6 F16 Front Fuse Box Relay Module Control Unit 9316568

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 6932452

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

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 9234424

BMW F10 F11 Fuse Box Power Distribution Control Unit Box Rear 9234424

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 9325884

BMW F36 Door Cable Front Driver's Door Wiring Loom Harness 9325884

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 7835892

BMW 5 6 Series E60 E61N M5 E63 M6 Cable Starter Base B+ Engine Battery 7835892

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 7571510-5

BMW Z4 E85 Roadster 2.5i N52 177HP Engine Control Unit ECU DME 7571510 Manual

€284.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 9341000

BMW F21 LCI Door Wiring Cables Harness Loom Front 9341000

€28.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 5A47298

BMW F74 Gran Coupé Power Distribution Box LIN Module 5A47298

€37.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 6913729

BMW X5 Series E53 Rear Left Right Door N/O/S Wiring Cables Harness Loom 6913729

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 7505513

BMW X5 SERIES E53 4.4i 4.6is 4.8is Cable Alternator Starter Base B

€47.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 7316218

Headlight Module BMW F01 F02 LCI Xenon Headlamp Control Unit Lear TMS 7316218

€47.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 8387547

Fuse Box Base BMW X3 E83 Mini R50 R53 Battery Positive Cable B 8387547

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 6924519-2

BMW E82 E88 Rear Lamp Taillight Tail Light Wiring Cable Left N/S 6984754

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 8580308-2

BMW X1 E84 20dX N47N 184HP Engine Control Module ECU DDE Kit 8580308 Automatic

€237.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 6970889

BMW 7 Series E65 E66 E67 Sensor Vehicle Centre Airbag 6970889

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 9294912-1

BMW F10 F11 X5 F15 X6 F16 Rear Seat Compartment Screen Display 9294912

€284.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 8592700

Glow Plug Wiring BMW F48 Mini F57 Wiring Harness Engine Module 8592700

€37.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 9381581

BMW i3 I01 IBS Cable Negative Battery Lead Wiring Harness Control Unit 9381581

€42.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 9378071

BMW F12 F12 LCI Convertible Top Module 9378071

€66.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 9139899

BMW F07 F10 LCI F06 F12 F13 MMI Multimedia CD Player Reader Head Unit 9139899

€51.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 6927310

BMW E60 Seat Control Unit Module Left Right N/O/S Temic 6927270

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 9345321

BMW F01 F02 Body Control Module Junction Box ECU 9345321

€42.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 8574380

BMW F10 520d N47N 184HP Engine Control Unit ECU DDE 8574380 Automatic

€99.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 5A323C8

BMW F40 Fuse Relay Power Distribution Box Unit 5A323C8

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 8602973

Battery Cable BMW F45 Mini F54 F56 B48 Alternator Starter Wiring 8602973

€42.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 8573260-4

ECU Kit BMW F20 F21 116d ed Diesel N47N 116HP DDE 8573260 Key FEM Lock Manual

€284.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 9231369

BMW F02 F10 F12 Multimedia TV DVD Remote Unit 9231369

€146.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 7542934

BMW E60 E61 E65 N62N Petrol Alternator Generator 180A 7542934

€170.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 7540203

BMW X5 Series E70 Control Unit DME Module Emergency Release Lock 7582630

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 5B3E981

BMW F70 F74 F78 Battery Negative Minus - Earth Lead Cable Wiring 5B3E981

€104.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 8364542

BMW E46 X3 E83 Power Distribution Fusebox Cover Fuse Box 8364542

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 8517862-15

BMW F10 F20 F30 F32 Engine Control Unit Diesel N47N 184HP xDrive ECU DDE 8517862

€56.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 9153418-2

BMW F10 F11 B Plus Distributor Box Front Battery Cable Unit 9153418

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 7634063

Gearbox Wiring BMW F10 F11 520i 528i N20 Automatic Engine Loom Harness 7634063

€75.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 6907329

BMW E65 Door Cable Guide Rear Left N/S Wiring Loom Bracket Trim Cover 6907329

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 9366339

BMW G32 GT Door Wiring Harness Loom Cable Rear Left Right N/O/S 9366339

€28.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 9203304

BMW X5 Series E70 Cable Loom Door Rear Left Right N/O/S Wiring Harness 9207857

€32.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 1378238

BMW E60 E63 E87 E90 E91 Relay Make Contact Orange 1378238

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 9205476

BMW 1 Series E81 E87 LCI Positive Battery Lead Distribution Box Cable Rear

€85.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 8606022

BMW F10 F11 523i N53 204HP Engine Control Unit ECU DME 7614366 Automatic

€759.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 8512047-5

BMW E90 E91 LCI N47N 320d ed ECU KIT DDE 8512047 CAS 2 Keys Manual Transmission

€180.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 6865300

BMW F20 F22 F30 F32 F36 Air Module Control Module ICM Plus Unit 6865300

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 9345379

BMW X3 F25 Footwell Light Control Module ECU Unit FRM3 TEMIC 9345379

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 9267465

BMW F01 Body Control Module ECU Junction Box V5 PL6 JBBFE III Lear 9267465

€28.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 8642682

BMW 3 Series F30 LCI 330e Negative Earth Cable High Voltage Battery 8642682

€32.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 8589145-19

BMW F36 190 HP 420d B47 Engine Control Unit ECU KIT Diesel 8589145 Automatic

€560.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 8582155-3

BMW F20 F30 F32 120dX 320dX 420dX 184HP N47N Engine ECU 8582155 Automatic

€66.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 5A088E6

BMW G20 Engine Control Unit ECU 258 HP 330i B48D 5A088E6 Automatic

€284.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 8576364-1

BMW F30 325d N47S1 218 HP Engine Control Unit ECU Kit DDE 8576364 Key FEM Manual

€503.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 9289374

BMW X5 X6 F15 F85 F16 F86 Front Battery Fuse Box Positive Distribution Terminal

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 9289587

BMW 2 X1 Series F45 F48 Radio Antenna Amplifier Suppression Filter 9289587

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 9225830

BMW F07 Right O/S Central Bass Loud Speaker Stereo System Unit 9164582

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 9274369

BMW F34 GT Front Passenger Side Door Wiring Loom Cable Harness 9274369

€32.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 9322056-2

BMW X5 F15 X6 F16 Battery Cable Positive Plus Pole Distribution Wiring 9322056

€37.95

Free delivery: Sep 15 – 16

If paid before 14:00

Part no. 7601799

Earth Ground Cable BMW X3 F25 Battery Cable Engine Wiring 7601799

€23.95

Free delivery: Sep 15 – 16

If paid before 14:00

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