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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Tailgate Lift Module BMW F31 F36 Mini F60 Trunk Control Unit Rear ECU 7492035

€23.95

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Part no. 9159794

BMW E93 Cabrio Air Module Control Unit Module ECU 9159794 65779159794

€23.95

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Part no. 8379375

BMW X5 E53 Loudspeaker Loud Speaker Tweeter Front 65138379375 8379375

€23.95

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Part no. 9197354

BMW X1 X3 E84 F25 Cigarette Lighter Socket With Cable 9197354

€23.95

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Part no. 9259467

Fuse Box BMW X3 F25 Power Distribution Control Unit Module Front 9259467

€23.95

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BMW G30 G11 G12 Sunroof Sliding Roof Drive Unit Motor Actuator

€23.95

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BMW E88 E93 LCI ECU Air Control Unit Module Controller 9143823

€23.95

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Audi Q7 4L Amplifier BOSE Premium Audio Sound System Module 4L0035223J

€284.95

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Part no. 1508927

Mini Cooper S R52 R53 Positive Battery Cable Lead Wire Cable B 1508927

€23.95

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Part no. 8510284

Engine Wiring Loom BMW F30 F31 F32 330d 430d N57N Gearbox Module Harness 8510284

€47.95

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Part no. A2048210851

Mercedes W212 Windscreen Rain Sensor Temperature Humidity Unit A2048210851

€23.95

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Part no. 9178862

BMW 1 3 Series E87 E90 Hands-free Electronics Bluetooth Module MULF2 9178862

€23.95

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Part no. 8586572

Engine Wiring BMW F20 LCI F30 F31 B47 Automatic Gearbox Loom Harness 8586572

€42.95

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Part no. X3 E83 Rear Wiring Loom PDC-1

BMW X3 Series 1 E83 Rear Bumper Wiring Loom PDC Harness Parking Sensor

€32.95

Free delivery: Sep 11 – 14

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Part no. 03L906022FL

Audi A6 C6 3.0 TDI 233HP Diesel Engine Control Unit ECU Kit Module 03L906022FL

€189.95

Free delivery: Sep 11 – 14

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Part no. A2129006518

Door Module Mercedes W204 W207 W212 Front Right O/S Control Unit A2129006518

€28.95

Free delivery: Sep 11 – 14

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Part no. 6960433

BMW E60 E61 E63 E64 E90 E91 FBAS Analog Video Module Unit 6960433

€94.95

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Part no. 6956020

BMW MINI Cooper Cabrio Convertible R52 Rear Bumper PDC Cables Wiring Loom Set

€32.95

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Part no. 9342080

BMW Mini Cooper F55 F56 F57 F60 Telematics Control Unit Module 2622390

€42.95

Free delivery: Sep 11 – 14

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Part no. A2059004113

Mercedes S205 Display Screen Multimedia Navigation Sat Head Unit A2059004113

€51.95

Free delivery: Sep 11 – 14

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Part no. 7160897-1

BMW E53 E60 E65 E81 E87 E90 E91 Bulb Holder Turn Indicator 7160897

€23.95

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Part no. 6882969

BMW F20 F21 F30 F31 ECU ICM Plus Control Unit Module Air Module 6882969

€32.95

Free delivery: Sep 11 – 14

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Part no. A0009820012

Mercedes W176 W212 W246 Voltage Converter Power Distributor Inverter

€23.95

Free delivery: Sep 11 – 14

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Part no. 8512043

BMW 3 E90 E91 LCI 316d 318d N47N Engine Basic DDE 8512043 Control Unit Manual

€28.95

Free delivery: Sep 11 – 14

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Part no. A2129004106

Door Module Mercedes W212 Rear Left N/S Control Unit A2129004106

€23.95

Free delivery: Sep 11 – 14

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Part no. 3456987

Mini Cooper R60 Footwell Light Module Unit High EKS ECU PL3 FRM3R Lear 3456987

€142.95

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Part no. 9362848

BMW 1 3 Series F20 F21 F30 F31 Bluetooth Teleservices GPS Telematics Module

€23.95

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Part no. 9284331

Mini Cooper R55 R56 LCI R60 R61 Roof Light Switch Operating Unit 9284331

€23.95

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Part no. A2049001506

Mercedes W204 Coupe Door Module Front Right O/S Control Unit A2049001506

€23.95

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Part no. 6955475

BMW Mini Cooper R50 R52 Aerial Antenna Amplifier Diversity Module 6955475

€23.95

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Part no. 9261590

PDC Parking Sensor BMW F20 F21 F30 Ultrasonic Front Tiefseeblau Deep Sea Blue

€23.95

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Part no. A0009052702

Mercedes W169 W204 W212 Battery Cable Negative Lead Wiring Harness A0009052702

€23.95

Free delivery: Sep 11 – 14

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Part no. 7811700-1

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

€113.95

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Part no. 6C1112A650AN

Ford Transit MK7 2.2 TDCI Diesel Engine Control Unit ECU Manual 6C1112A650AN

€89.95

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Part no. 9178962

BMW X5 X6 E70 E71 Power Distribution Fuse Box Battery 9178959

€23.95

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Part no. 9240274-2

BMW E30 E31 F01 F02 F10 F11 Top View Mirror Camera 9240274

€99.95

Free delivery: Sep 11 – 14

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Part no. 3C0906093C

Audi TT Mk2 8J Petrol Engine Fuel Pump Control Unit Module 3C0906093C

€23.95

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Part no. 038971803

Volkswagen VW Caddy 2K Injector Wiring Harness Loom 038971803

€23.95

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Part no. 8516246

BMW F10 LCI F20 F22 F30 F32 B37 Wiring Harness Engine Glow Plug Module 8516246

€23.95

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Part no. 8378113

BMW Z4 Series E85 E86 Interior Fuse Box 8378113

€26.95

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Part no. 9370431

BMW X1 Series F48 KaFAS Camera Assist Speed Limit Control 9370431

€47.95

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Part no. 9252636

BMW X1 E84 PDC Sensor Parking Control Module Unit ECU 9225822

€170.95

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Part no. 1709317

BMW X5 E53 E60 E61 E63 E64 Petrol Engine Ping Knock Sensor 1709317

€23.95

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Part no. 9189906

BMW E88 E93 LCI Air Module Control Unit ECU 9189906

€32.95

Free delivery: Sep 11 – 14

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Part no. 6809053

BMW F20 F22 F30 Rear Electronic Module REM Fuse Box Control Unit V5 ECU 6809053

€23.95

Free delivery: Sep 11 – 14

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Part no. A2035407608

Mercedes-Benz C W203 Front Left Right Door Wiring Loom Harness A2035407608

€23.95

Free delivery: Sep 11 – 14

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Part no. A2045402410

Mercedes W204 Door Wiring Front Left N/S Door Cable Harness A2045402410

€23.95

Free delivery: Sep 11 – 14

If paid before 14:00

Part no. 9166708-3

Footwell Module BMW E93 Light Control LCM PL2 FRM II 9166708

€66.95

Free delivery: Sep 11 – 14

If paid before 14:00

Part no. 9169521

BMW E61 Centre Console Switch Cluster Control Unit ECU 9169521

€23.95

Free delivery: Sep 11 – 14

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Part no. A6397600704

Mercedes Vito W639 Front Left Door N/S Lock Bowden Pull Cable A6397600704

€23.95

Free delivery: Sep 11 – 14

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Part no. 6915061

Mini Cooper One R55 R56 R57 Power Folding Wing Mirror Module ECU Control 6915061

€23.95

Free delivery: Sep 11 – 14

If paid before 14:00

Part no. A2038206426

Mercedes-Benz C-Class W203 Front Right Door O/S Control Unit Module A2038206426

€23.95

Free delivery: Sep 11 – 14

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Part no. 9866979

BMW F20 F21 F30 F31 Rear Electronic Module Fuse Box Control Unit V2 REM 9866979

€23.95

Free delivery: Sep 11 – 14

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Part no. A2229004320

Telematics Module Mercedes C238 Communication Blutooth Control A2229004320

€51.95

Free delivery: Sep 11 – 14

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Part no. 8P0862335S

Audi S3 8P Interface Bluetooth Control Module Harman Becker ECU 8P0862335S

€23.95

Free delivery: Sep 11 – 14

If paid before 14:00

Part no. A1669004402

Door Module Mercedes W176 W246 Front Right O/S Control Unit Module A1669004402

€23.95

Free delivery: Sep 11 – 14

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Part no. 7631026

Mini R55 R56 R57 LCI R60 N47N Automatic Gearbox Basic Control Unit EGS 7631026

€28.95

Free delivery: Sep 11 – 14

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Part no. 9120788

BMW 5 Series E60 E61 Wiring Loom Harness Passenger Side 9120785

€23.95

Free delivery: Sep 11 – 14

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Part no. A2049017901-1

Rain Sensor Mercedes SLK R172 W204 Front Windscreen Control Unit A2049017901

€23.95

Free delivery: Sep 11 – 14

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Part no. A0009051600

Mercedes W207 W212 W221 Front Windscreen Windshield Camera A0009051600

€23.95

Free delivery: Sep 11 – 14

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Part no. 7L0937576B

Audi Q7 4L Fuse Box Trim Cover Panel Electrical Unit Housing 7L0937576B

€23.95

Free delivery: Sep 11 – 14

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Part no. A4479000900

Mercedes Vito W447 Air Module Control Unit ECU 4479000900

€66.95

Free delivery: Sep 11 – 14

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Part no. 9228914

Radio CD Player BMW F10 F11 F13 Navigation ECE Sat Nav Head Unit 9228914

€265.95

Free delivery: Sep 11 – 14

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Part no. A0025467940

Receptacle Housing Mercedes W164 W203 W639 Dashboard Wiring Harness A0025467940

€23.95

Free delivery: Sep 11 – 14

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Part no. 7168153

BMW MINI Cooper One Clubman R55 R55N LCI Wiper Motor Window Left Rear N/S 716815

€23.95

Free delivery: Sep 11 – 14

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Part no. A2059004721

Door Module W205 Rear Right O/S Door Control Unit Module A2059004721

€28.95

Free delivery: Sep 11 – 14

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Part no. 6929916

BMW E63 E64 Rear Bumper PDC Cables Set Wiring Loom Harness 6929916

€32.95

Free delivery: Sep 11 – 14

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Part no. 7638192

BMW F20 F21 F30 F31 N13 Petrol Engine Starter Motor Bosch 7638192

€23.95

Free delivery: Sep 11 – 14

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Part no. 6822602

BMW F20 F21 F30 F31 Head Unit Basic Media Navigation Headunit 6822602

€132.95

Free delivery: Sep 11 – 14

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Part no. 7075946

BMW 5 7 Series E60 E61 E65 Front Seat Backrest Adjustment Drive Memory 7075946

€23.95

Free delivery: Sep 11 – 14

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Part no. 99661510200

Porsche Boxster 986 Rear Spoiler Control Relay 99661510200

€23.95

Free delivery: Sep 11 – 14

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Part no. 9298958

Rear Electronic Module BMW F20 REM Fuse Box Control Unit V1 9298958

€23.95

Free delivery: Sep 11 – 14

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Part no. A1695400209

Mercedes W169 W245 Diesel Engine Starter Wiring Loom Cable A1695400209

€23.95

Free delivery: Sep 11 – 14

If paid before 14:00

Part no. 038907281B

Audi A6 C6 2.0 TDI Glow Plug Relay Unit Control Module 038907281B

€23.95

Free delivery: Sep 11 – 14

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Part no. 7342174

BMW X1 E84 Z4 E89 LED Xenon Headlight ECU Module 7342174 L90028076

€23.95

Free delivery: Sep 11 – 14

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Part no. 1K0955557B

Skoda Octavia II Crash Thrust Air Module Sensor 1K0955557B

€23.95

Free delivery: Sep 11 – 14

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Part no. A1729000402

Seat Control Module Mercedes A172 A190 A197 A207 A231 ECU Unit A1729000402

€146.95

Free delivery: Sep 11 – 14

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Part no. 9261612

Ultrasonic Parking Sensor BMW F20 F21 F23 F87 PDC Black 9261612

€23.95

Free delivery: Sep 11 – 14

If paid before 14:00

Part no. 2225618

Ford Transit Custom Mk1 Engine Starter Motor 2.0 EcoBlue GK2T-11000-AB

€66.95

Free delivery: Sep 11 – 14

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Part no. 7589971-1

Mini One R55 R56 N12 1.4 95HP ECU Engine Control Unit DME 7589971

€94.95

Free delivery: Sep 11 – 14

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Part no. 8583575

BMW F07 F10 F11 F12 Diesel N57 Engine Wiring Injection Wiring Harness 8583575

€28.95

Free delivery: Sep 11 – 14

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Part no. A2465402050

Mercedes W176 Fuse Box Control Unit SAM Module Relay A2465402050

€23.95

Free delivery: Sep 11 – 14

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Part no. DM5T-19A164-AA

Ford Focus Mk3 AUX Connector Adapter Port Socket Outlet DM5T-19A164-AA

€23.95

Free delivery: Sep 11 – 14

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Part no. 03D906023Q

Volkswagen Fox 1.2 Petrol CHFB 55HP Engine Control ECU Manual 03D906023Q

€23.95

Free delivery: Sep 11 – 14

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Part no. A2035451303

Mercedes CL203 W203 Fuse Box Cover Engine Bay Relay A2035451303

€23.95

Free delivery: Sep 11 – 14

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Part no. 6874337

BMW F10 F20 F30 VDC Rear M Sport Suspension Control Unit Module 6874337

€61.95

Free delivery: Sep 11 – 14

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Part no. 6860962

BMW X3 F25 ECU ICM Air Module Control Unit 6860962 0265020494

€28.95

Free delivery: Sep 11 – 14

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Part no. 8J0971035E

Audi TT 8J Driver's Side Door Wiring Loom Harness Electrical Cable 8J0971035E

€28.95

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Part no. 6856314

BMW 1 3 Series F20 F21 F30 F31 ECU ICM Plus Control Unit Module Airbag

€37.95

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Part no. 5G6919605B

VW Volkswagen Golf Sportsvan Multimedia Sat Nav Radio Display Screen 5G6919605B

€137.95

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Part no. 6814187-1

Audio Module BMW F20 F30 F31 F32 Operating Unit FBM Control Panel 6814187

€23.95

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Part no. 7527610-5

Mini Cooper One R50 R52 W10 Engine Control Unit DME Manual 7527610

€23.95

Free delivery: Sep 11 – 14

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Part no. 6819334

BMW F20 F21 F30 F31 REM Rear Electronic Module Fuse Box Control Unit V3 6819334

€32.95

Free delivery: Sep 11 – 14

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Part no. A2075406010

Mercedes W207 Front Bumper PDC Wiring Parking Sensor Loom Harness A2075406010

€28.95

Free delivery: Sep 11 – 14

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Part no. 6857300

Air Module BMW F01 F02 LCI F10 F11 F13 ICM Crash Control Unit ECU 6857300

€32.95

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Part no. 8573258-10

Engine Control Unit BMW F20 116d F30 316d N47N 116HP ECU DDE 8573258 Manual

€32.95

Free delivery: Sep 11 – 14

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Part no. 9387624

BMW F20 F21 F30 Sensor Rain Light Solar Condensation 9387624

€23.95

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Part no. 8512499-1

BMW E81 E87 E90 E91 LCI N47 143HP Diesel ECU Kit DDE 8512499 Manual

€123.95

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Part no. P0148459-IB1

Mini Cooper One 1 R50 Fuel Filler Cover Fill In Flap Indi Blue Metallic 862

€23.95

Free delivery: Sep 11 – 14

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