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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Mini Cooper One R55 R56 R57 LCI R58 R59 CHAMP 2 Navigation 9361145

€132.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 2641479

Ford Focus Mk4 Wireless Charging Module ECU NX7T-19J235-AC

€104.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7P6907566A

Volkswagen Touareg 7P Lane Change Assist Module Control Unit Master 7P6907566A

€70.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. H1BT-14D624-BE

Ford Fiesta ST Front Door Wiring Cable Harness Left Right O/S Mk8 H1BT-14D624-BE

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 3Q0907338P

Audi Q2 GA Headlight Light Headlamp Lamp Control Module Unit ECU 3Q0907338P

€104.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8V51-14A075-CA

Ford Fiesta Mk7 Positive Battery Terminal Fuse Box Cover Lid 8V51-14A075-CA

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9243896-1

Central Information Display BMW F10 F11 LCI Boardmonitor Screen 7" 9243896

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. C2S42932

Jaguar X-Type X400 Rear Bumper PDC Parking Sensor Wiring Harness C2S42932

€56.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. LR034020

Range Rover L405 Engine Starter Motor Unit 4.4 Diesel CPLA-11001-AC

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. F1ET-14A584-CDE

Ford Focus Mk3 Front Wiring Cable Harness Door Driver's Side F1ET-14A584-CDE

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A1725409010

Mercedes A207 Front Bumper Wiring Harness Cable A1725409010

€222.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A0009003039

Mercedes C118 W177 W247 Starter Battery Control Module DC Converter A0009003039

€322.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. CH22-14632-CC

Land Rover Discovery 4 L319 Rear Door Wiring Loom Harnes Right O/S CH22-14632-CC

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7P0915181B

Audi A1 8X Negative Battery Terminal Cable Wiring 7P0915181B

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 1859215

BMW F10 LCI LED Headlight Lamp Module Control Unit 1859215

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8516739-8

Mini Cooper SD R55 R56 LCI R60 143HP N47N Engine Control ECU DDE 8516739 Manual

€113.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A0025451301

Mercedes W169 W245 W907 W910 Fuse Box Carrier A0025451301

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 3C0937548

Volkswagen Passat CC Rear Tailgate Fuse Box Power Distribution 3C0937548

€37.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8368932

BMW E39 Alarm Sensor Comfort Control Module Unit ECU 55892110

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. HJ32-14632-ATB

Range Rover Evoque L538 Rear Door Wiring Harness Cable Left N/S HJ32-14632-ATB

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9281718

Lane Departure Warning BMW F01 F02 LCI X4 F26 ECU Control Unit 9281718 F01

€85.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6S6T-14B056-KC

Ford Fiesta Mk5 Fusion Mk1 Air Control Module Unit ECU 6S6T-14B056-KC

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8W5945094AA-1

Audi A4 B9 S4 8W Rear Tail Light LED Right O/S Wire Cable Harness 8W5945094AA

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. GK21-13C148-AB

Ford Transit Mk9 Headlight Control Unit Module ECU GK21-13C148-AB

€37.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 2134489

Ford Kuga Mk1 C394 Starter Motor 2.5 Turbo Petrol 6G9N-11000-JB

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. M8A2-14516-BC

Land Rover Range Rover Velar L560 Fuse Relay Box Fusebox M8A2-14516-BC

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 1S0919275D-TOG

Audi Q3 8U PDC Parking Distance Control Sensor Tornado Grey-X7P 1S0919275D

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A1695405545

*Mercedes-Benz A-Class W169 Body Control Unit Module SAM A1695405545

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2139005311

Mercedes W213 Head Unit CD Media Player Audio Auto Radio Controller A2139005311

€170.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 3AF035552

VW Volkswagen Passat B7 Radio Aerial Antenna Amplifier Left N/S 3AF035552

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. EK2T-14B428-RA

Ford Transit Custom Bluetooth Control Module Unit ECU EK2T-14B428-RA

€37.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8795477

BMW G20 Power Distribution Box LIN Module Control Unit ECU 8795477

€37.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. KU5T-14A003-GA

Ford Transit Custom Mk8 Mk9 Fuse Box Cover Cap Trim Lid KU5T-14A003-GA

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2229009608

Mercedes W205 BCM Body Control Module Unit ECU A2229009608

€61.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8X0971693A

Audi A1 8X Door Wiring Harness Loom Rear Left Right N/O/S Cabling 8X0971693A

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2749000800-7

Mercedes W205 C200 274.920 184HP Engine Control ECU Kit A2749000800 Automatic

€303.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8W6945093AA-1

Audi A5 F5 Rear Tail Light Matrix LED Lamp Wiring Inner Left N/S 8W6945093AA

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 98664531200

Porsche Boxster 986 Amplifiers Digital Sound System Module Unit 98664531200

€712.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. KK2T-15K868-AEE

Ford Transit Custom Rear Bumper Parking Sensor Wiring Loom KK2T-15K868-AEE

€56.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2059061357-4

Mercedes W205 Saloon Rear Lamp LED Wiring Cable Left N/S Tail Light A2059061357

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7944003

BMW G30 G31 G11 G32 GT PDC Module Parking Assist Distance Control Unit 7944003

€32.95

Free delivery: Nov 12 – 13

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Part no. 5Q0937125B

Volkswagen Golf Sportsvan Fuse Box Engine Compartment Relay Unit 5Q0937125B

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2469007307

Mercedes W176 R231 PDC Parking Control Module Parktronic System N62 A2469007307

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. K8D2-10757-AC

Land Rover Discovery Sport L550 Evoque L551 Battery Bracket Mount K8D2-10757-AC

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 2398033

Ford Transit Connect Mk2 Focus Mk4 Parking Sensor Control Module KU5T-15K866-CJ

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. YQE-000350

Range Rover L322 Fusebox Fuse Relay Box 3.0 Diesel M57 YQE000350

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. HK52-14B673-AD

Range Rover L405 Tailgate Boot Trunk Control Module Unit ECU HK52-14B673-AD

€141.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5WA959655M

Skoda Octavia Mk4 Air Module Control ECU Unit 5WA959655M

€104.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6M21-U406A10-AD

Ford Galaxy Mk2 S-Max Boot Lid Tailgate Spring Strut Pair 6M21-U406A10-AD

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. YWC000712

Land Rover Range Rover L322 Air Module Unit Control ECU YWC000712

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A1775402610

Mercedes W177 Fuel Tank Fuel Pump Wiring Loom Harness 282814 Petrol A1775402610

€37.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8512415-9

Mini One D R60 N47N 90HP Diesel Engine Control Module ECU DDE 8512415 Manual

€37.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8K0959792C

Audi A4 B8 Door Module Control Unit ECU Front Left N/S 8K0959792C

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9166869

Mini Cooper R56 Hands-free Electronics Charging MULF2 9166869

€47.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8649179

BMW X5 F15 Positive Wiring Harness Cable Battery 8649179

€89.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A0009009114

Mercedes W205 Air Conditioning Climate Control Module ECU A0009009114

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. AVH-X8700BT

Mercedes W639 Pioneer CarPlay Radio Stereo Multimedia Head Unit AVH-X8700BT

€279.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. K8D2-189E87-AA

Range Rover Evoque L551 Auxiliary Heater Control Unit Bracket K8D2-189E87-AA

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2465406809

Mercedes W176 W246 Wiring Loom Cable Door Rear Left Right N/O/S A2465406809

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 02T911024K

Seat Ibiza 6J VW Volkswagen Polo 6R Skoda Fabia II Starter Motor 02T911024K

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7P5941591AJ

Volkswagen Golf Mk7 5G Headlight Ballast Module Left Right N/O/S 7P5941591AJ

€51.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4H0959795P

VW Touareg 7P Rear Door Module Control Unit Left Right N/O/S 4H0959795P

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6C1T-14A067-AB

Ford Transit Mk7 Fuse Box Relay Housing Harness 2.2 TDCi DRFB 6C1T-14A067-AB

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6939890

BMW E87 E81 E92 Relay Plug Control Module Unit Wiring 6939890

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. DT1T-15K601-AC

Ford Transit Connect Mk2 Button Remote Flip Key Fob 433MHz DT1T-15K601-AC

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9389220

BMW Mini Cooper F56 Wiring Passenger Loom Front Left N/S Door Cables 9389220

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8T0035225J

Audi A5 8T Antenna Aerial Amplifier Module Control Unit 8T0035225J

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7516708

Land Rover Range Rover L322 ECU Fuse Box Case Housing 3.0 Diesel 7516708

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 2719163

Ford Ranger Mk6 Exhaust Oxygen Temperature Gas Sensor 2.0 EcoBlue JB3A-12C545-AA

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. XUO000051B

Land Rover Range Rover L322 Aerial Amplifier Module Unit ECU XUO000051B

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7L5971694

Porsche Cayenne 9PA Rear Door Wiring Loom Harness Left Right N/O/S 7L5971694

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8J0971035J

Audi TT 8J Driver's Side Door Card Wiring Loom Harness Cable 8J0971035H

€47.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. CPLA-14Q073-AA-3

Jaguar XF X260 Range Rover L405 Fuse Box Control Module CPLA-14Q073-AA

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5A83C36

BMW F74 Gran Coupé X1 U11 Positive Battery Terminal Cable Wire B38A15P 5A83C36

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 1859213

BMW F10 LCI LED Headlight Lamp Module Control Unit 1859213

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2056105402

Mercedes W205 Battery Recess Trunk Floor Battery Box Base Plate A2056105402

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4F2T-14A624-AA

Jaguar XK8 X100 Adaptive Restraint SRS Module ECU Air Unit 3W83-14B321-AB

€42.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. HK83-14D620-BB

Land Rover Discovery L550 Door Module Control Unit Rear Right O/S HK83-14D620-BB

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 3C5971243

Volkswagen Passat CC Negative Battery Terminal Cable 3C5971243

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7L6971120

Volkswagen Touareg 7L Front Door Wiring Loom Harness Passenger's Side 7L6971120

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5Q0035842B

Skoda Superb 3V Rapid NH Octavia 5E Radio Head Unit CD Media Stereo 5Q0035842B

€151.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. YWC500422

Land Rover Range Rover L322 Navigation Control Module Unit ECU Audio YWC500422

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. HPLA-14N144-AD

Range Rover Sport L494 Positive Plus Battery Wiring Cable HPLA-14N144-AD

€37.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6938213

BMW E90 LCI Door Wiring Loom Wire Cable Harness Front Right O/S 6938213

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. GK21-12A650-CA-2

Ford Transit Custom 2.0 YMF6 130HP Engine ECU Kit GK21-12A650-CA Manual

€569.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8T8971687J

Audi A5 S5 8T Door Wiring Loom Harness Wire Cable Rear Left N/S 8T8971687J

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7PP035620BK

Porsche Cayenne 92A Vehicle Tracking Control Unit Module 7PP035620BK

€113.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 702500

Citroen Relay Peugeot Boxer III Iveco Daily Relay MOPAR 12V 30A 702500

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2045402610

Mercedes W204 Cable Harness Rear Door Panel Card Wiring Loom A2045402610

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A0009059300-CVB1

Mercedes W205 W212 W246 Parking Distance Sensor Set x2 Cavansite Blue - 890

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2059064505-2

Mercedes S205 Estate Rear Headlight Wiring Harness Cable Right O/S A2059064505

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7300271-2

BMW F01 Rear Tail Light Wiring Harness Cable Inner Left N/S 7300271

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2118702926

Mercedes W211 C219 Front Windscreen Rain And Light Sensor Rain-Light A2118702926

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9878327

Air Conditioning Module BMW G11 G20 G21 G30 Control Unit ECU 9878327

€37.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9805533-1

Mini R60 Rear PDC Parking Sensor Royal Grey Metallic - A48 9805533 SET x2

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9257426

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

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2118704085

Seat Module Mercedes W203 W211 Control Unit Front Left Right N/O/S A2118704085

€75.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6J0035342E

Seat Altea 5P1 Media-IN Socket Multimedia Interface Module 5P0035341G

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9381113

Air Con Module BMW F20 F30 F31 Mini F55 F56 Air Conditioning A/C Unit 9381113

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

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