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 X3 E83 Front Door Window Lifter Regulator Motor Right O/S 3448250

€37.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6921982

BMW 7 Series E65 E66 E67 Control Unit Door Rear Driver Side

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 7835872

BMW 5 Series E60 E63 E64 Carrier Holder Amplifier/Video Module Fairing EDC

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9302458

BMW F32 Wire Harness Loom Cable Wiring Rear Adapter 9302458

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9221462

BMW F01 Front Seat Control Unit Module ECU Left Temic 9221462

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9264636-1

BMW 1 3 4 F20 F30 F32 1 Driver Side Seat Wiring Loom Electric Harness 9339286

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9293242

BMW 3 7 Series F01 F02 LCI F34 Telematics Control Unit Module TCB ECE 9293242

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9882602

Gearbox Cable BMW F90 M5 F91 M8 Engine Wiring Automatic Transmission 9882602

€42.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9354071

BMW F45 F48 Door Adapter Line Wire Wiring Harness Rear Left Right N/O/S 9354071

€32.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9231174

BMW 3 4 F30 F32 Touring Amplifier Rear Window Antenna Diversity 9231174

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8373700-3

BMW E60 E63 E87 E90 E91 5X Relay Make Contact White Green Set 8373700

€28.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8574024

Engine Wiring BMW F30 F31 335dX N57Z Automatic Gearbox Cable Harness 8574024

€37.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 3424581

BMW X3 Series E83 Airbag Control Unit Module ECU 65773424581 3424581

€36.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8618444

BMW F30 LCI 330e B48X Cell Module Connector 8618444 61278618444

€28.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8573260-11

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

€284.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8727997

BMW F44 Gran Coupe Door Wiring Harness Rear Door Right Left N/O/S 8727996

€42.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9279391

BMW 5 G11 G30 M5 Door Crash Sensor Front 9279391

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 7528933

BMW E90 E81 E92 E94 ECU Computer Module Housing Box Trim Carrier Bracket 7528933

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9166279

BMW E81 E87 Boardmonitor Central Information Display Screen Control Unit 9166279

€237.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 130002613-1

BMW 5 X5 7 Series E60 E61 E65 E70 Longitudinal Seat Adjusment Drive Motor

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9148267

BMW 3 Series E93 Seat Control Unit Module FSV 7.11.0 9148267

€94.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9231175

Diversity Antenna Amplifier BMW F30 F32 Rear Window DAB Module Unit 9231175

€28.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8321087

BMW 5 SERIES E60 ELECTRIC SEAT Height Adjust 0390203234 8321087

€24.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8514735

BMW F20 F21 116d ed N47N 116HP Engine Control Unit Module ECU DDE 8514735 Manual

€170.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9140942-BAR1

BMW E87 E90 E91 LCI Rear PDC Ultrasonic Parking Sensor SET X2 Barberarot - A39

€28.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8715708

BMW F40 F44 Front Parking Sensor Wiring Loom Harness Cable 8715708

€85.95

Free delivery: Jul 29 – Aug 3

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: Jul 29 – Aug 3

If paid before 14:00

Part no. 8353447

BMW E36 E38 Relay Two Pole Make Contact 8353447

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9308292

BMW 3 Series F30 F31 Battery Cable Wire Lead Positive Underfloor 9259326

€70.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 5A57781-1

BMW F40 M135i B48 306HP Engine Unit ECU KIT DME 5A57781 BDC Key Automatic

€322.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9277202

Wiring Cable BMW F06 F12 F13 Electric Parking Hand Brake Handbrake Set 9277202

€32.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9264571

BMW E90 LCI Body Control Module H1 PL2RR JBBFE IIIR 61359264571 9264571

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9257426

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

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8483814

BMW G20 Starter Wiring Battery Alternator Cable Harness Loom 8483814

€32.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 7835548

BMW 5 6 Series E60 E61 LCI E63 E64 M5 M6 Earth Cable Starter Battery 7835548

€26.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6920469

BMW E65 E66 E67 Sensor A-pillar Right Airbag 65776920469 6920469

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6929556

BMW E65 E66 Driver's Seat Air Module Sensor Control Unit Module 6929556

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 1439743

BMW E46 X5 E53 E60 E65 X3 E83 Z4 E85 Z3 Cable Alternator Starter 1439743

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9160558

BMW 5 Series E60 E60N E61 E61N LCI Airbag ECU Control Unit Module

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 7605076

BMW F06 F10 F11 F12 F13 Wiring Harness Cable Engine Ignition Module N55 7605076

€75.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9339823

BMW X3 G01 G11 G12 G30 G31 Battery Positive Terminal Pint Jump Start 9339823

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8573257-6

BMW F10 F11 520d Diesel N47N 184HP Engine Control Unit ECU DDE 8573257 Automatic

€89.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 7627023

BMW F20 F21 F30 Petrol N13 Automatic Gearbox Engine Sensor Module 1 Wiring

€66.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6915327-1

BMW E46 E60 E81 E87 E90 E91 F10 F20 F30 2x Relay Make Contact Sky Blue 6915327

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8617778

Earth Ground Cable BMW i3 I01 Hybrid Rex Electric Engine Wiring 8617778

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6950525

BMW 3 6 Series E63 E64 E93 DWA Alarm System Module Unit 65756950525 6950525

€23.95

Free delivery: Jul 29 – Aug 3

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: Jul 29 – Aug 3

If paid before 14:00

Part no. 9317173

BMW F20 F21 F30 F31 REM Rear Electronic Module Fuse Box Control Unit V1 9317173

€32.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8639583-1

BMW F20 F21 F30 LCI M140i 340i B58 Wiring Harness Motor Sensor Module 8639583

€180.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9343304

BMW X5 F15 X4 F26 Antenna Aerial Diversity Trap Circuit Control Module 9343304

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9242204

Wiring BMW F12 F13 F06 Cable Set For Electric Parking Brake Handbrake 9242204

€80.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9289679

BMW X5 F15 X6 F16 Antenna Amplifier Control Unit Module 9289679

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9268438

BMW F10 F11 F01 F02 F03 Crash Impact Air Module Central Sensor Unit 9268438

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8506444-1

BMW E90 E91 LCI E92 330d Diesel N57 245HP ECU Engine Kit DDE 8506444 CAS3 + Key

€332.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8605454

Engine Wiring BMW F10 F21 F30 LCI F36 N20 Loom Module Harness Cable 8605454

€66.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6751504

Module Holder BMW X5 E53 Rear Tyre Pressure Control Module Mount Bracket 6751504

€23.95

Free delivery: Jul 29 – Aug 3

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: Jul 29 – Aug 3

If paid before 14:00

Part no. 5A19AC3

BMW F40 ACSM5 Control Unit Air Module ECU Control Module 5A19AC3

€37.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6825835

BMW 2 Series F45 F46 Cable Wiring Jump Starter Base B+ Engine Battery 6809391

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 420919275

Rear Bumper PDC Audi A5 Sensor Parking Distance Control 420919275

€23.95

Free delivery: Jul 29 – Aug 3

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: Jul 29 – Aug 3

If paid before 14:00

Part no. 5A7A0C5

BMW U06 X1 U11 Fuel Injector Electrical Wiring Harness Cable B38 Petrol 5A7A0C5

€37.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9137725

BMW E63 E64 LCI Camera Lane Departure Warning 9137725

€37.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6919905

BMW X5 Series E53 PDC Parking Control Module Unit PDC 6919905

€37.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9350314

BMW G30 G31 G11 G12 G32 G38 Front Power Distribution Fuse Box Left N/S 9350314

€28.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9269941

BMW X1 E84 Front Door Cable Harness Loom Driver Side Wiring 9233551

€32.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 7843335

BMW F10 M5 F12 M6 Engine Wiring Harness Valvetronic Servomotor Cyl.1-4 7843335

€47.95

Free delivery: Jul 29 – Aug 3

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: Jul 29 – Aug 3

If paid before 14:00

Part no. 9210147

BMW F20 F30 Central Bass Speaker Stereo Subwoofer Left N/S 9210147

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8576333-1

BMW F10 F11 520d X3 F25 20dX N47N 184HP ECU Kit DDE 8576333 Key CAS4 Automatic

€218.95

Free delivery: Jul 29 – Aug 3

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: Jul 29 – Aug 3

If paid before 14:00

Part no. 9254025

BMW 5 7 X3 X5 X6 Series F10 F11 E70 E71 F01 F02 F25 Rain Light Solar Sensor

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9393671

BMW F12 LCI Junction Box Module Control Unit V12 9393671

€75.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 7556846

Battery Cable BMW E82 E90 E91 E92 N54 Alternator Starter Base B Cable 7556846

€32.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9287433

BMW F21 F22 Wiring Loom Door Drivers Side Front Right O/S 9340973

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9137725-1

BMW E63 E64 LCI Camera Lane Departure Warning Unit 9137725

€32.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 7810002-1

BMW 1 Series E81 E82 E87 LCI E88 N47S 123d ECU Kit DDE CAS 3 Key 7810002 Manual

€284.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9365054

BMW F30 Wiring Harness Loom Rear Trunk Lid Boot Tailgate 9365054

€32.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6935597-TS1

BMW E81 E87 Front Rear Parking Sensor PDC Titansilber Silver 354 6935597

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6970090

BMW E63 E64 Start Stop Switch Wiring Harness Cable Loom Connector 6970090

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9360372

BMW X6 F16 Fuse Box Power Distribution Relay Control Unit Box Rear 9360372

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8506442-1

BMW E81 E87 LCI 123d Petrol N47S 204HP ECU Kit DDE 8506442 CAS3 Key Automatic

€256.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8716572

BMW G20 G21 G80 G80 LCI Door Trim Panel Wiring Loom Harness Rear 8716572

€28.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6924389

BMW Z4 Series E85 E86 Battery Positive Cable Fuse Box B Base 6924389

€25.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6927275

BMW E60 E61 E65 E66 Seat Control Module Ecu Sensor 6927275

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6772742

BMW 3 4 Series F80 M3 F82 M4 Control Unit Active Sound Design 2622362

€66.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9313618

BMW 3 Series F30 F31 F80 M3 Front Rear Right O/S Wiring Loom Harness Cables Set

€23.95

Free delivery: Jul 29 – Aug 3

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: Jul 29 – Aug 3

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: Jul 29 – Aug 3

If paid before 14:00

Part no. 6862756

BMW F20 F21 F22 F30 F31 ECU ICM Plus Control Unit Module 6862756

€23.95

Free delivery: Jul 29 – Aug 3

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: Jul 29 – Aug 3

If paid before 14:00

Part no. 9276096

BMW 5 6 7 Series F01 F10 F13 Antenna Aeral Amplifier Diversity 868 MHZ 9276096

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9241825

Central Information Display BMW F10 F11 LCI Boardmonitor Screen 7" 9241825

€47.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9224422

Bluetooth Control Unit BMW E60 E87 E90 Telematics Module ECU 9224422

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8506570

BMW X5 E70 X6 E71 30dX Diesel N57 245HP Engine Module ECU 8506570 Automatic

€284.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 7177697-3

Plug Socket BMW E61 LCI Rear Lamp Touring Trunk Lid Wiring Left N/S 6984746

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6958358

BMW 5 X5 Series E39 E53 Hands-free Electronics Charging Module MULF 6958358

€132.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9134662

BMW 1 3 Series E87 E90 E91 E92 Seat Control Unit Module ECU 9134662

€47.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6902265

BMW E65 E66 E67 Compact Base Support System Rear Black 6902265

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

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