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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Porsche Carrera 996 Rear Wiper Motor Relay Unit Black 12V 99361810400

€42.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. FT11-13W030-EB-2

Ford Transit Connect Mk2 Headlamp Wiring Harness Cable Left N/S FT11-13W030-EB

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6860827

BMW F20 F21 F22 F23 F30 F31 Park Assist Control Module Unit PDC 6860827

€47.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. CV6T-10300-FA

Ford Fiesta MK7 Alternator 14V 120 AMP 1.0 Petrol 5 Speed Manual CV6T-10300-FA

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6832062

BMW F10 F13 X3 F25 Wireless Charger Centre Console Phone Charging Module 6832062

€75.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. YIB500032

Range Rover L322 Navigation Computer Control Module ECU Sat Nav YIB500032

€189.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4G8959793J

Audi A6 C7 Door Module Control Unit ECU Front Left N/S 4G8959793J

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. JPLA-14N030-AC

Range Rover Sport L494 Rear Boot Trunk Fuse Box Module JPLA-14N030-AC

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. LPLA-15K622-BB

Land Range Rover Velar L560 Keyless Entry Comfort Control Module LPLA-15K622-BB

€23.95

Free delivery: Nov 12 – 13

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Part no. CPLA-148006-AA

Range Rover L405 Air Module Crash Impact Sensor CPLA-148006-AA

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2761508800

Starter Cover Mercedes W205 W212 W213 M276 Heat Plate Motor Shield A2761508800

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4G8971085BL

Audi A7 4G Rear Bumper Wiring Harness Cable Sensor PDC Radar 4G8971085BA

€42.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. DE8T19H463DC

Ford Transit Connect Mk2 Focus Mk3 Rain Sensor Control Unit DE8T-19H463-DC

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8168035-1

BMW E60 Trunk Open Cable Boot Lid Tailgate Release Wiring 8360676

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 1405523

Mini One D R50 R53 Cooper S Fuse Box 1405523

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. F1ET-14D624-LB

Ford Focus Mk3 Front Door Wiring Loom Cable Left N/S NSF F1ET-14D624-LB

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4H0907428B

Audi A8 D4 Rear Reversing Camera Module View Camera Control Unit ECU 4H0907428B

€256.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7567178-1

BMW 3 5 Series E60 E90 325i 525i N52 218HP DME ECU 7567178 Kit CAS3 Key Manual

€332.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7P5971104

Porsche Cayenne 92A Rear Bumper Park Sensor PDC Wiring Harness Cable 7P5971104

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8E0057111DX

Audi A3 8P A4 B7 RS4 B7 CD Changer For MMI Multimedia Interface 8E0057111DX

€137.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2709002100-12

Mercedes W176 M270.910 122HP Engine Control ECU Kit A2709002100 Automatic

€332.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. BJ32-14F667-BE

Range Rover Evoque L538 Dashboard Display Screen Multifunction BJ32-14F667-BE

€89.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6850426

BMW X3 F25 ICM Air Module Control Unit ECU Domain Module 6850426

€70.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2098209810

Mercedes CLK A209 Cabrio Alarm Anti Theft System Control Module Unit A2098209810

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5K0962132A-1

Audi Q3 F3 Keyless Entry Amplifier Control Module Aerial Antenna 5K0962132A

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 14934436506

Citroën C4 Grand Picasso Seat Occupancy Passenger Detection Sensor 8925J1

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8F0971030BF

Audi A5 8F Cabriolet Front Door Wiring Loom Harness Passenger Side 8F0971030BF

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7L5035191F

Porsche Cayenne Turbo 955 Radio GPS Navigation Head Unit 7L5035191F

€284.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8W0947355C

Audi A5 S5 F5 Door Panel LED Module Light Unit Wiring Front Right O/S 8W0947355C

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 2H0911023F-1

Volkswagen Crafter 30-35 2E Amarok 2.0 TDI Engine Starter Motor 25-4258

€47.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4K0971228N

Audi A6 C8 Starter Wiring Harness Cable 4K0971228N

€142.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9261620

BMW F20 F21 F30 Ultrasonic Parking Sensor PDC Front Havanna Metallic - A17

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6G9N10300YC

Land Rover Freelander 2 L359 2.2 Engine Alternator Generator 6G9N10300YC

€37.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 1604024

Land Rover Discovery 4 L319 Front Seat Wire Wiring Harness Left N/S 1604024

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8Y0971036E

Audi A3 8Y Front Door Card Wiring Harness Loom Cable Passenger Side 8Y0971036E

€37.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. T4N3828

Jaguar Xf X260 Tweeter Facia Speaker Front Left Right N/O/S DH52-18808-AA

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. FG9T-14A067-PB

Ford Mondeo Mk5 Body Control Module Fuse Box BCM FG9T-14A067-PB

€70.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. LR059791

Land Rover Discovery Sport L550 Rear Crash Impact Sensor FK7214B342AA

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5K0907115-1

Volkswagen Scirocco III 2.0 TSI CCZB 211HP Engine Control ECU 5K0907115 Manual

€379.95

Free delivery: Nov 12 – 13

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Part no. HPLA-19C164-CAC

Range Rover L405 Discovery 5 Sport L320 Audio Sound Amplifier HPLA-19C164-CAC

€560.95

Free delivery: Nov 12 – 13

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Part no. A2465403803

Mercedes-Benz A-Class W176 Cover Equipment Electrical Fuse Box A2465403803

€23.95

Free delivery: Nov 12 – 13

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Part no. 7393069-2

Mini F55 F56 F57 Headlight Front Light LED Headlamp Wiring Left N/S 7393069

€23.95

Free delivery: Nov 12 – 13

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Part no. 4H0959793N

Volkswagen Touareg 7P Front Door Control Module ECU Right O/S 4H0959793N

€32.95

Free delivery: Nov 12 – 13

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Part no. A2701590042

Ignition Coil Mercedes W176 M270 Petrol Ignition Cable Connector A2701590042

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. AH42-7H417-AD

Range Rover L322 Transfer Case Box Module Control Unit AH42-7H417-AD

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9250456

BMW F12 Footwell Light Module Control Unit ECU FRM3 9250456

€132.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9383699

BMW X3 F25 X4 F26 Footwell Light Control Module Unit 9383699

€123.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2059008543

Mercedes W205 X235 BCM Body Control Unit Module ECU A2059008543

€42.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. YWC000922

Range Rover L322 Body Control Module BCM ECU 4.4 V8 Petrol YWC000922

€184.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 3G9945307E-1

VW Passat B8 Tail Light Rear Lamp Inner Left N/S Wire Cable Harness 3G9945307E

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8576333-11

BMW F20 F30 120d 320d N47N 184HP Engine Control Unit ECU DDE 8576333 Manual

€56.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. HY32-19949-AA

Land Range Rover Sport L494 Air Conditioning A/C Wire Harness HY32-19949-AA

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. R8D2-14632-EAA

Land Rover Range Rover Door Wiring Harness Loom Rear Right O/S R8D2-14632-EAA

€113.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. FK72-19H440-AD

Land Rover Discovery Sport L550 Keyless Entry Control Module ECU FK72-19H440-AD

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5H0837085

VW Volkswagen Golf R Cd1 Door Lock Harness Cable Wire Front Right O/S 5H0837085

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A4475406777

Alternator Wire Mercedes Vito W447 Battery Alternator Cable A4475406777

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2115400131

Mercedes C219 Battery Starter Alternator Ground Earth Cable A2115400131

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8K0907063D

Audi A4 B8 A5 8T Body Control Comfort Unit Module BCM Unit ECU 8K0907063D

€75.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A1775455800

Mercedes W177 AMG Control Unit Bracket Module Holder Mount A1775455800

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. TL-151

High Power 165mm 6.6" 2-Way Loudspeakers TA-1651 400W theloudest

€51.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A4155401005

Mercedes Citan W415 Renault Kangoo Front Door Wiring Loom Left N/S 8200809160

€37.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. GU5T-14B192-HA

Ford Transit Mk8 Relay High Power 5-Pin Grey FoMoCo GU5T-14B192-HA

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 3AA919234

Volkswagen Passat B7 Aid Module Deactivation Warning Light Indicator 3AA919234

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8E0959643B

Audi A4 B7 Crash Impact Air Sensor Unit Module 8E0959643B

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. K6D3-8A512-AA

Range Rover Sport L494 Water Coolant Pipe Hose 3.0 Diesel K6D3-8A512-AA

€56.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9107240

BMW G20 G21 G22 G23 G26 Dashboard Wiring Cable Connector Loom Harness 9107240

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A1665402450-1

Mercedes ML W166 Fuse Box Front Relay Control Unit Module A1665402450

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8W6971035BP

Audi S5 F5 Front Door Wiring Harness Cable Loom Driver Side 8W6971035BP

€66.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. KV6A-5H298-CD

Ford Transit Custom Adblue Control Module ECU 2.0 Diesel BFJB KV6A-5H298-CD

€61.95

Free delivery: Nov 12 – 13

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: Nov 12 – 13

If paid before 14:00

Part no. 6812218

BMW X1 F48 Rear Left Right N/O/S Door Wiring Harness Loom 6812218

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4K0971349L

Audi A6 C6 Alternator Main Cable Wiring Harness Loom 4K0971349L

€85.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8X0907063R

Audi A1 8X Central Gateway Control Unit Module Relay Supply ECU 8X0907063R

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9311188

BMW F10 LCI LED Module Loom Harness Connector Plug 520d N47N N47D20C 9311188

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. FK72-19C164-TA

Land Rover Discovery Sport L550 Audio Sound Amplifier Module FK72-19C164-TA

€94.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2135405542

Mercedes W205 Electrical Wire From Transmission To Body Ground Cable A2135405542

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. AH42-18C847-BB

Land Rover Range Rover L322 Aerial Antenna Audio Amplifier Module AH42-18C847-BB

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2059008917

Mercedes W205 Head Unit Radio CD Player Audio Sat Nav Control A2059008917

€85.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9139868-BS

BMW X3 E83 LCI X5 E70 LCI PDC Parking Ultrasonic Sensor Black Sapphire - 475

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6Y6945112C-1

Skoda Fabia MK1 6Y Rear Tail Light Lamp Wiring Cable Right O/S 6Y6945112C

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 3412005

BMW X3 E83 Front Door Air Module Crash Impact Sensor 3415299 3412005

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9366167

BMW F30 F31 F32 F36 Top Hifi Audio System AMP Amplifier Harman Kardon 9366167

€664.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6C11-12A650-CL

Ford Transit Mk7 Engine Control Unit ECU 140HP 2.2 Diesel 6C11-12A650-CL Manual

€284.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2229002108

Mercedes W205 S205 Rear Door Control Module Left N/S A2229002108

€47.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5A130F9

BMW F40 F44 G20 Parking Control Module Unit USS ECU LOW 5A130F9

€37.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A1679008311

Mercedes C238 Door Control Unit Module ECU Front Left N/S A1679008311

€42.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A0025428019

Relay Mercedes W176 W246 4-Pin Black Hella 12V A0025428019

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6772742

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

€37.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 3A0972695

VW Volkwagen Audi Seat Skoda Cable Loom Wiring Connector Plug Socket 3A0972695

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4H0971687BK

Audi A8 D4 Door Wiring Loom Harness Cables Rear Right O/S 4H0971687BK

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. EM5T-18B955-RA

Ford Ranger Mk6 Radio Display Screen Monitor Head Unit EM5T-18B955-RA

€113.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5F0945095D-2

Seat Leon Mk3 5F Tail Light Lamp Rear Left N/S Harness Loom Wire 5F0945095D

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A0018209726

Mercedes-Benz C CLK Class W203 W209 Airbag Control Unit Module ECU A0018209726

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8T0959792K

Audi A5 S5 8T Door Module Control Unit Front Passenger Side 8T0959792K

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9302458

BMW F32 Wire Harness Loom Cable Wiring Rear Adapter 9302458

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. L8B2-14D617-AG

Range Rover Velar L560 Door Control Module Front Passenger Side L8B2-14D617-AG

€51.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9399466

Mini F54 F55 F56 F57 F60 Telematics Control Unit Module 84109399466 9399466

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2129060605-1

Mercedes W212 Fuse Box Rear Relay Control Unit Electric Module SAM A2129060605

€80.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. GV6T-14A073-DF

Ford Kuga Transit Connect Mk2 Body Control Module BCM GV6T-14A073-DF

€37.95

Free delivery: Nov 12 – 13

If paid before 14:00

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