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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Differential Lock Module BMW F13 M6 F80 M3 Rear Axle Control Unit ECU 8065118

€51.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9271716-1

BMW F20 F30 Head Unit Radio CD Player Multimedia Control Unit Alpine 9271716

€70.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9224869

BMW F10 F11 F12 F13 Rear Bang&Olufsen Mid Range Speaker Left Right N/O/S 9224869

€113.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7555190

BMW F01 F02 F03 F10 F11 Control Module Housing Seal Frame Gasket 7555190

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7191718

BMW Z4 Series E89 Roadster Cabrio Horn High Tone 7191718

€28.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9390501

BMW 3 4 Series F31 F32 F80 M3 F82 M4 LCI USB Charger Adapter Socket 9390501

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9257102

BMW F01 F02 F03 F04 Front Seat Control Unit Module Memory 9257102

€37.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8510221-18

BMW E90 E91 E92 LCI 325d N57 204HP ECU Engine Module DDE 8510221 Automatic

€42.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6950525-1

2 x BMW E63 E64 E93 Alarm System Module Sensor DWA Control Unit Set 6950525

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8518423-1

BMW F20 F30 120d 320d N47N 184HP Engine Unit ECU Kit DDE 8518423 FEM Key Manual

€151.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6983075

BMW F01 F07 F10 F30 LCI Fan Motor For Amplifier Control Unit Module Controller

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6933410

BMW E85 Fuses Electrical Fuse Set 6933410

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8631671

BMW F20 F21 LCI Engine Gearbox Wiring Harness Transmission Module Wiring 8631671

€194.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8510221-16

BMW E90 E91 E92 LCI 325d Diesel N57 204HP ECU Engine Module DDE 8510221 Manual

€70.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9264973-1

BMW X5 E70 Seat Control Unit Module ECU 9264973

€47.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 2753025

Mini Cooper R55 R56 R57 R58 Wiring Heated Seat Loom 2753025

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8574352

BMW X1 E84 20d 20dX 184HP N47N Engine Control Unit ECU DDE 8574352 Automatic

€89.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6985748

BMW 5 Series E60 E61 Centre Console Switch Centre DTC PDC 6985748

€23.95

Free delivery: Aug 5 – 10

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: Aug 5 – 10

If paid before 14:00

Part no. 9128570

PDC Loom Cables BMW E81 E87N LCI Front Bumper Wiring Set 9128570

€28.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9356496

BMW F06 F12 F13 Dashboard Display Central SAT NAV Information Monitor 9356496

€213.95

Free delivery: Aug 5 – 10

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: Aug 5 – 10

If paid before 14:00

Part no. 9259466

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

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9385026-1

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

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9320147

BMW F12 F13 Harman Becker Amplifier Top Module Control Unit 9320147

€788.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9894708

BMW F70 F74 U06 X1 U11 ECU Engine Holder Box Mount Support 9894708

€32.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8511409

BMW F10 F11 N57N Control Unit Module Box Cover Bracket Carrier Mount 8511409

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8630168

BMW 3 F30 LCI 330e Hybrid Charging Control Unit Bracket Holder Mount 8630168

€37.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9276099

BMW F01 F10 Diversity Aerial Antenna Amplifier Module DAB 9276099

€35.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7545165

BMW E87 E90 116i 316i Petrol N45 Wire Wiring Harness Engine Gearbox Mod Loom

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9244161

BMW F01 F02 F03 F04 Head Unit Radio Media Player Navigation 9244161

€165.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9200503

BMW E60 LCI F01 F07 F10 ECU USB Hub Control Unit Module 9200503

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8363668

BMW X3 X5 Series E53 E83 Steering Column Turn Indicator Switch Stalk 8363668

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8385159-1

BMW X3 E83 E46 Battery Cable Holder Mounting B Base Trim Carrier 8385159

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9261788

BMW F01 Rear Bumper Parking Sensor PDC Wiring Loom Harness Cable 9261788

€32.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9237085

BMW F10 F11 Cable Loom Door Passenger Side Wiring Harness 9240882

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8615581

BMW 3 F30 LCI 330e B48X Control Unit Bracket Holder Mount 8615581

€56.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8639595

BMW F30 F31 F32 320i 420i N20 ECU Engine Control Unit DME 8639595 Automatic

€322.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6868251

Air Module BMW F01 F02 LCI F07 GT F10 F11 F13 ECU ICM Control Unit 6868251

€28.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7521122-1

BMW E60 E65 E70 E87 E90 F10 F20 F30 N52 N53 Petrol Engine Starter Motor 7521122

€32.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6957123

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

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6935597-2

4 x BMW 1 3 E81 E87 E90 E91 PDC Set Parking Sensor Front Rear Titansilber Silver

€28.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7359019-3

BMW F20 F21 LCI Light in Trunk Lid Left N/S Rear Lamp Wire Harness Cable 7359019

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8517862-5

BMW F10 F20 F30 520d 120d 320d N47N 184HP Engine Unit ECU DDE 8517862 Automatic

€56.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7638194

BMW F20 F21 F22 F30 F31 Engine Starter Motor N20 N26 N55 Petrol 7638194

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9148265

BMW E70 E87 E90 E91 E92 Seat Control Unit Module ECU 9148265

€32.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9214243

BMW F10 F11 Battery B+ Engine Compartment Terminal Point 9214243

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7856817

BMW F90 M5 F91 M8 Battery Cable Wire Lead Positive Alternator Starter B+ 7856817

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9247481

BMW X3 F25 Control Module CAS Unit ECU 20dX Diesel N47N 9247481

€113.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9353743

Junction Box Terminal BMW G11 G12 G30 Power Battery Distribution 9353743

€28.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6821139

BMW F10 LCI F20 F21 F30 F31 DAB Bluetooth Head Unit Basic 6821139

€113.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7638005

BMW F20 F30 F32 Earth Ground Cable Negative Battery Lead Wiring 7638005

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8713127-1

BMW F90 M5 F91 M8 G30 Fuse Box Power Distribution Control Unit Box Rear 8713127

€32.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 2315828

BMW F11 F20 F21 F33 E81 E82 E87 E88 Electronic Module Adapter Device 2315828

€94.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9231518

BMW F31 Antenna Aerial Diversity Trap Circuit 9231518

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6923502

Mini R50 One D Diesel W17 Cable Starter Base B- Wire 6923502

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9196937

BMW E93 Convertible Seat Control Unit Module ECU 9196937 FSV 7.14.0

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6916565

BMW 5 X5 Series E38 E39 E53 Hands-free Electronics Charging Module MOTOROLA

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6863389

BMW F20 F21 F30 F31 ECU ICM Plus Control Unit Module Airbag 6863389

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6808523

BMW F10 Individual Audio System Amplifier Module ECU 6808523

€1,139.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9171900

BMW X5 E70 X6 E71 Computer Control Unit DVD Player RSE MID PLUS PL4 9171900

€360.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7316187

BMW F80 M3 F32 F33 Xenon Headlight Control Module Lear TMS 7316187

€56.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6929950

BMW 5 Series E60 E61 E63 E64 LCI CD Changer Magazine 6929950

€28.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7812500

BMW E60 E61 LCI N47 520d 177HP Engine Control ECU DDE Kit 7812500 Automatic

€104.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9252690

BMW F12 f13 Interior Active Sound Module Control Unit Mount Bracket 9252690

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8582280-4

BMW F20 116d N47N 116HP Engine Control ECU DDE 8582280 Automatic Transmission

€47.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9118064

BMW 7 Series E65 E66 Centre Console Vent Storage Compartment Support 9118064

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8652443

BMW F45 Wiring Harness Motor Sensor System Module 8652443

€42.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8368932

BMW E39 Alarm Sensor Comfort Control Module Unit ECU 55892110

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9354290-1

BMW X1 F48 Pedestrian Protection Impact Crash Sensor Module PTS 9354290

€28.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6782372

BMW X1 X3 Z4 E83 LCI E84 E89 E90 E91 E92 Speed Sensor Cluster 6782372

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7550967-2

BMW E81 E90 E91 E60 Alternator Generator Petrol 150A 7550967

€42.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7795638

BMW 3 E90 E91 E92 E93 Cable starter-base B Diesel 7795638

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9354070

BMW F45 Active Tourer F46 Gran Tourer Door Wiring Harness Cable Adapter 9354039

€42.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9261598

BMW F20 F21 F22 Rear Bumper PDC Ultrasonic Sensor Valencia Orange Metallic B44

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8573779-3

BMW F30 330dX 258HP N57N Control Unit Module ECU DDE 8573779 Key FEM Automatic

€189.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6840094

BMW X1 F48 Rear Door Wiring Loom Harness Cable Left N/S 6840096

€37.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9270356-1

BMW F40 Mini F55 F56 Fuse Box Power Distribution Junction Relay Unit 9270356

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6927786

BMW X5 Series E53 Amplifier Compensator Holder Catch Bracket 6927786

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9364401

BMW G20 G21 G30 G31 Positive Battery Cable Lead Cover Cap 9364401

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9371789

BMW F20 F21 F30 F31 Bluetooth Teleservices GPS Telematics Module 9371789

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9874189

BMW 1 3 Series F20 F30 MINI F56 Control Unit Air Conditioning Module 9284440

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7426094

BMW F83 M4 S55 Petrol Engine Fuel Pump Control Module Unit ECU 7426094

€32.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7856819

Battery Cable BMW F90 M5 F91 M8 Wire Lead Positive Alternator Starter B+ 7856819

€28.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8634167

Alternator BMW G11 G12 LCI G20 G21 G30 G31 Alternator 250A Denso 8634167

€123.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9199305

KaFAS Camera BMW F10 F11 Rear View Control Unit Module 9199305

€89.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7288993-2

BMW X5 E70 Headlight Headlamp Wiring Harness Cable Plug Left N/S 7288993

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9303637

BMW Z4 E89 AUX USB Smartphone Connection Lead Cable Wiring 9303637

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9367693

BMW M5 F90 G11 G12 Power Distribution Relay Fuse Box Make Contact 9367693

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8506199-3

BMW E60 E61 LCI 520d Diesel N47 Engine ECU Kit DDE 8506199 CAS 3 + Key

€170.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9217234

Module Bracket BMW X3 F25 X4 F26 Control Unit Holder Carrier 9217234

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8369504

BMW 5 E39 Saloon Radio Signal Antenna Amplifier Coaxial Cable 8369504

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 5A82A01

BMW G20 G21 G28 Side Indicator Control Module Unit Left N/S 5A82A01

€94.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8377601

BMW E38 Door Windows Control Unit Module ECU ZB PMBT LOW 8377601

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9253637

BMW 3 5 Series F10 F11 F30 F31 Airbag Control Unit Module 9253637 65779253637

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6992415

BMW 7 F02 ECU Body Control Module Junction Box JBBFEIIIR LP 6992415

€42.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9222855

BMW X5 X6 Series E70 E71 Navigation System Car Computer CIC 9222855

€332.95

Free delivery: Aug 5 – 10

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: Aug 5 – 10

If paid before 14:00

Part no. 8595355

BMW G11 G12 G30 G32 G14 Starter Cable Alternator Cable Starter-Base B+ 8595355

€29.95

Free delivery: Aug 5 – 10

If paid before 14:00

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