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.

More information

Find it faster

Match to your vehicle

Make

Audi RSQ3 8U Negative Minus - Battery Wiring Cable Loom 2.5 TFSI 8U0915181A

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. ML3A-5L200-AD

Volkswagen Amarok Mk2 DPF Filter Pressure Sensor 3.0 TDI ML3A-5L200-AD

€113.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. AM5T-18K811-BE

Ford Focus Mk3 Multimedia Radio Player Switch Control Panel AM5T-18K811-BE

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8797570

BMW X1 F48 Door Wiring Cable Loom Harness Front Passenger Side N/S 8797570

€42.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9312592

BMW F10 F10 LCI Hi-Fi System Audio Amplifier Harman Becker 9312592

€56.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8V0907376C

Audi A3 S3 8V Air Suspension Damping Module Control Unit 8V0907376C

€94.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4M1959792J

Audi A6 C8 Q5 FY Door Control Unit Module ECU Passenger Side 4M1959792J

€56.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. AW93-14B663-AD

Range Rover L405 Heated Front Seat Control Module AW93-14B663-AD

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8H0951177-1

Audi A4 B6 B7 Cabriolet Alarm Rear Movement Detector Control Unit 8H0951177

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. LT71-12A650-LD

Ford Transit Connect Engine Control Unit ECU 1.0 EcoBoost 100 HP LT71-12A650-LD

€127.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8U0971029

Audi Q3 8U Front Door Wiring Harness Wire Loom Cable Left N/S 8U0971029

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. HX73-14D374-AC

Jaguar Xf X260 Restraint Control Unit Module Air Unit Module HX73-14D374-AC

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A1779009902

Mercedes W177 Front Windscreen Windshield Camera Multi Purpose Unit A1779009902

€66.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. LR085507-1

Land Rover Discovery Sport L550 2.0 Diesel Starter Motor Denso GJ32-11001-AE

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9286945

Comfort Control Unit BMW F06 F10 F11 F12 F13 Junction Box 9286945

€51.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8509722-2

Control Unit Box BMW F20 F21 F22 F30 F31 Cover Panel Protection 8509722

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. GJ32-14D618-BA

Land Rover Discovery Sport L550 Door Module Front Driver's Side GJ32-14D618-BA

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. EH22-14B079-DB

Land Rover Discovery 4 L319 Centre Console Wiring Harness EH22-14B079-DB

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2045420423

Mercedes W204 PDC Parktronic Parking Sensor Display Warning Rear A2045420423

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. DG9T-14B526-DA

Ford Mondeo Mk5 Engine Start Stop Control Module ECU Unit DG9T-14B526-DA

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8639595-14

BMW F07 LCI F10 LCI F34 ECU Engine Control KIT 184 HP 220i N20 Petrol 8639595

€332.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7L6971121H

Volkswagen Touareg 7L Front Door Wiring Loom Harness Driver's Side 7L6971121H

€42.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8W6945092N

Audi A5 F5 LED Rear Outer Tail Light Taillight Lamp Right O/S 8W6945092N

€142.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6926961-1

BMW E60 E61 X5 E70 X6 E71 F07 F10 F11 Seat Adjustment Switch Left N/S 6926961

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2055451500

Power Connection Mercedes W205 W213 C238 X253 Battery Starter Alternator Wiring

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8573260-7

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

€441.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 2K0907496A

VW Volkswagen Caddy 2k Sliding Door Contact Connector Plate Right O/S 2K0907496A

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A6421501230-2

Mercedes C219 Engine Control ECU 272HP Diesel CLS 350 Automatic A6421501230 KIT

€165.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2059067200

Mercedes W205 S205 W213 Fuse Box Front Relay Control Unit Module A2059067200

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8621017

BMW G20 G21 G30 G31 LCI G11 G12 Cell Module Connector Harness Loom Cable 8621017

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. M8A2-F260145-BB

Land Rover Range Rover Velar L560 Negative Battery Cable M8A2-F260145-BB

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7640005-13

Mini Cooper R55 R56 N12 1.6 120HP Engine Unit ECU Kit DME 7640005 CAS3 2 Keys

€170.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A6519007401-12

Mercedes W204 Engine Control ECU 2.1 Diesel 170HP Manual 651911 A6519007401 Kit

€170.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9252550

BMW F10 F12 F20 F21 F22 F30 F31 Front Seat Control Module ECU 9252550

€94.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. CV4T-18K891-AA

Ford Kuga Mk2 Rear Tailgate Wiring Loom Connector Sensor CV4T-18K891-AA

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. KK21-12B681-AC

Ford Transit Custom Glow Plug Relay Bracket Mount Support KK21-12B681-AC

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7L5035741D

Porsche Cayenne 9PA Bluetooth Control Module Unit Amplifier Motorola 7L5035741D

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6835155

BMW 1 2 3 Series F40 F44 G20 Radio Antenna Amplifier Suppression Filter 6835155

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 03G906021AQ-1

VW Caddy 2K 1.9 TDI BLS 103HP Engine Unit ECU Kit Manual Keys 03G906021AQ

€132.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. EB3T-18D816-CF

Ford Ranger Mk3 Central Locking Module Control Unit ECU EB3T-18D816-CF

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5N0035558

Volkswagen Jetta A6 USB Adapter Wiring Harness Lead Cable Connector 5N0035558

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. CX23-10755-AC

Jaguar Xf X250 Battery Bracket Holder Support Carrier Mount CX23-10755-AC

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. FK72-971111-AC

Land Rover Discovery L550 Anti Theft Alarm Wiring Cable Lead FK72-971111-AC

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 859400F020

Toyota Verso R2 Relay Control Module Unit ECU 859400F020

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 03C906016T

Audi A3 8P 1.4 TFSI CAXC 125HP Engine Control Unit ECU Kit 03C906016T Automatic

€284.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2055463100

Retaining Plate Mercedes W205 Relay Fuse Box Holder Bracket A2055463100

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 99764214302

Porsche 911 S PCM Radio Navigation Monitor Module Control Unit 99764214302

€707.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. DS7A-15A563-AB

Ford Mondeo Mk5 Glovebox Storage Stowage Compartment Lamp Light DS7A-15A563-AB

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. YML500373

Land Rover Discovery 3 L319 Front Seat Memory Wiring Harness YML500373

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5Q0971250Q

Audi A3 S3 8V Negative Battery Terminal Earth Cable Lead Wiring 5Q0971250Q

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9217033

Battery Cable BMW F01 F02 Positive Wiring Plus Pole Red 9217033

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4H0919275-SDA

Skoda Octavia 1Z PDC Parking Sensor 4H0919275 Anthracite Grey Metallic - F8J

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9M5T-14A067-CA

Ford Focus Mk2 BCM Fuse Box Relay Control Unit Engine Bay 9M5T-14A067-CA

€47.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5Q0907376B

Seat Leon Cupra 5F Suspension Control Unit Module ECU 5Q0907376B

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9890597

BMW G11 G12 G30 G31 G32 F93 F97 Airbag ECU Control Unit Module 9890597

€89.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4H0971030HG

Audi A8 S8 D4 4H Front Door Wiring Loom Harness Passenger's Side 4H0971030HG

€37.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8K2907115AF-1

Audi A5 8T Engine Module ECU Kit 2.0 TFSI 180HP Key Lock Manual 8K2907115AF

€142.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6864206

Air Module BMW F20 F21 F30 F31 F32 ECU ICM Plus Control Unit 6864206

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8644492

Engine Wiring Mini F56 F60 BMW F45 F46 Petrol Sensor Module 2 Harness 8644492

€56.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. L8B2-14F041-AG

Range Rover Evoque L551 Body Comfort Control Module BCM ECU L8B2-14F041-AG

€161.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5G0972136

VW Volkswagen Golf R Mk7 Cover TV Tuner Cover Top Lid Bracket Holder 5G0972136

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8515754

BMW 5 Series F10 N57N Diesel Alternator 210A Valeo 8515754

€85.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 02E911023Q

Audi A3 8P Engine Starter Motor Actuator 2.0 TDI Diesel 02E911023Q

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. LR129023

Land Rover Range Rover Velar L560 Door Module Front Driver's Side L8B2-14D618-AG

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6R0802717B

Seat Ibiza 6J Audi A1 8X Battery Tray Holder Mounting Bracket Cover 6R0802717B

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9456002

BMW F45 X5 F15 Inverter Converter KLE Charging Module Control Unit 9456002

€303.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2078201089

Mercedes W207 A207 Radio Aerial Antenna Amplifier Module Unit A2078201089

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. KK3T-14D068-JD

Ford Transit Mk8 Fuse Box Power Distribution Relay 2.0 Diesel KK3T-14D068-JD

€170.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. FK72-14K042-AB

Land Rover Discovery Sport L550 Console Wiring Loom Harness FK72-14K042-AB

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. F1FT-18B955-GD

Ford Focus Mk3 Radio Multimedia Display Screen Unit Module F1FT-18B955-GD

€113.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8513301

BMW F25 Engine Gearbox Module Wiring Harness Loom 35dX N57Z N57D30B 8513301

€165.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. EB3T-19C107-FF

Ford Ranger Mk3 Radio Audio Sound CD Head Unit Control Navi EB3T-19C107-FF

€222.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9329339

BMW F32 Telematics Telephone Control Unit Module Bluetooth TCB ECE 9329339

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. FK7219C299AE

Jaguar XF X260 Center Dashboard Multimedia Display Screen 8" Unit FK72-19C299-AE

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8K0907064F-1

Audi S4 B8 Central Convenience Module Comfort Control ECU 8K0907064GF

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2133402600

Mercedes W205 W213 Battery Holder Mounting Bracket Support A2133402600

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 3Q0959435Q

Volkswagen Audi Skoda Seat Keyless Entry Module ECU Unit 3Q0959435Q

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2709002900

Mercedes X156 GLA200 M270.910 156HP Engine Control ECU A2709002900 Automatic

€379.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6943857

BMW 5 6 Series E60 E61 E63 ECU Key Reading Module Control Unit CAS 2 6943857

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8200881264

Alternator Support Nissan Qashqai Renault 2.0 dCi Engine Bracket 8200881264

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. DG9T-19H464-FA

Ford Mondeo MK5 Aerial Antenna Amplifier Booster Control Module DG9T-19H464-FA

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A6519009702-7

Mercedes W176 A220d OM651.930 177HP Engine ECU Kit A6519009702 2 Keys Automatic

€284.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2188203015

Mercedes CLS C218 USB Socket 12V Power Outlet Wiring Harness Cable A2188203015

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9110621

BMW 3 Series E90 E92 LCI Suppression Filter for Antenna 9110621 652 9110621

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. FK72-14D620-BD

Land Rover Discovery Sport Rear Door Control Module ECU Right O/S FK72-14D620-BD

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4E0910336J

Audi A5 8T Bluetooth Telephone Control Module Unit ECU 4E0910336J

€113.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8T8971688J

Audi A5 S5 8T Door Wiring Loom Harness Wire Cable Rear Right O/S 8T8971688J

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. F1BT-18C815-HE

Ford Transit Connect Radio Stereo CD Player Head Unit F1BT-18C815-HE

€47.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9284295

BMW X1 U11 G26 F30 High Voltage Switch Safety Connector 9284295

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7202585-3

BMW E90 E91 LCI Bi-Xenon Headlight Lamp Light Left N/S Harness Loom Wire 7202585

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7955841-2

BMW G20 G21 G28 Rear Tail Light Lamp Inner Left N/S Harness Wire Loom 7955841

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8J0907601-1

Seat Ibiza 6j Audi A1 S1 8X Impact Alarm Sound Siren Signal Actuator 8J0907601

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8715719

BMW G20 320i Fuse Relay Box Control Unit Rear Power Distribution 8715719

€42.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 3421485

BMW X3 E83 X1 E84 Z4 E89 Wiring Harness Grommet Fastener Mount Carrier 3421485

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A6421508277

Mercedes CLS C219 OM642.920 Engine Control ECU Kit A6421508277 Automatic

€208.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4F1971035C

Audi A6 C6 Front Door Wiring Harness Loom Cable Right O/S 4F1971035C

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. FK72-14D374-AJ

Land Rover Discovery L550 Air Module Control Unit ECU BOSCH FK72-14D374-AJ

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8582802-2

BMW F30 F31 330d N57N 258HP Engine Control Unit ECU Kit DDE 8582802 FEM Key

€142.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. LU5T15604BJAE

Ford Puma St Cf7 Body Control Module BCM Keyless Entry Unit LU5T-15604-BJAE

€42.95

Free delivery: Nov 12 – 13

If paid before 14:00

...

Showing 7129-7227 of 22939 products