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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Land Range Rover Velar L560 Fuse Box Module Unit 2.0 Hybrid LX73-14A073-HA

PLN 436.95

Free delivery: Jul 16

If paid before 14:00

Part no. 6821404

High Voltage Cable BMW F45 Mini F60 Hybrid Plugin Alternator 6821404

PLN 1,424.95

Free delivery: Jul 16

If paid before 14:00

Part no. 6805061

BMW F45 F46 Mini F55 F56 F57 Parking Assistant PDC Control Unit Module 6805061

PLN 246.95

Free delivery: Jul 16

If paid before 14:00

Part no. 6J0035342C

Seat Ibiza FR 6J Dashboard MMI Multimedia AUX Socket Interface Box 6J0035342C

PLN 42.95

Delivery: Jul 16

If paid before 14:00

Part no. 9232896

Dashboard Monitor BMW X5 X6 E70 E71 Onboard Display Screen 8,8" 9232896

PLN 474.95

Free delivery: Jul 16

If paid before 14:00

Part no. 191906383C

Audi VW Volkswagen Seat Relay Unit Module 4 Pins 191906383C

PLN 46.95

Delivery: Jul 16

If paid before 14:00

Part no. 9276009

BMW F07 GT Rear Antenna Aerial Amplifier AM/FM DABIII FBD2 868MHZ 9237057

PLN 664.95

Free delivery: Jul 16

If paid before 14:00

Part no. A2055401542

Mercedes W205 Rear Door Harness Wiring Cable Left Right N/O/S A2055401542

PLN 256.95

Free delivery: Jul 16

If paid before 14:00

Part no. 4F0907280A

Audi A6 C6 On Board Onboard Supply Module Control Unit ECU 4F0907280A

PLN 66.95

Free delivery: Jul 16

If paid before 14:00

Part no. RVH000055-1

Land Rover Discovery 3 L319 Rear Air Suspension Relief Valve Block RVH000055

PLN 142.95

Free delivery: Jul 16

If paid before 14:00

Part no. 7P6945207-2

VW Touareg 7P Rear Tail Light Lamp Wiring Harness Cable Plug Right O/S 7P6945207

PLN 42.95

Delivery: Jul 16

If paid before 14:00

Part no. LR072286

Land Rover Discovery Sport L550 Tailgate Opening Sensor Upper FK72-14E108-AA

PLN 42.95

Delivery: Jul 16

If paid before 14:00

Part no. YML500861

Land Rover Range Rover Sport L320 Driver's Seat Wire Harness Cable YML500861

PLN 189.95

Free delivery: Jul 16

If paid before 14:00

Part no. 7286050

BMW F20 Control Unit Module Wing Mirror Power Fold 7286050

PLN 237.95

Free delivery: Jul 16

If paid before 14:00

Part no. 06L971627AA

Audi S3 8V Seat Leon Cupra 5f Injector Wiring Loom Harness 2.0 TSI 06L971627AA

PLN 89.95

Free delivery: Jul 16

If paid before 14:00

Part no. A2049005908-3

Mercedes W204 COMAND Navigation CD Player Radio Sat Nav Head Unit A2049005908

PLN 569.95

Free delivery: Jul 16

If paid before 14:00

Part no. 7555188

BMW 5 6 Series F10 F11 F12 F13 Control Unit Box Cover 7555155

PLN 46.95

Delivery: Jul 16

If paid before 14:00

Part no. YWC000783

Land Rover Discovery 3 L319 Front Seat Memory Control Unit Module ECU YWC000783

PLN 132.95

Free delivery: Jul 16

If paid before 14:00

Part no. A2044402232

Mercedes W204 W207 Battery Cable Positive Wiring Harness Loom A2044402232

PLN 75.95

Free delivery: Jul 16

If paid before 14:00

Part no. 5A70A69

BMW F40 Parking Module Comfort Control Unit ECU 5A70A69

PLN 474.95

Free delivery: Jul 16

If paid before 14:00

Part no. A2048708626

Mercedes W212 Media Interface Control Module Unit ECU A2048708626

PLN 42.95

Delivery: Jul 16

If paid before 14:00

Part no. 4L0937555A

Audi Q7 4L Fuse Relay Box Housing Trim Panel Lid Cover 4L0937555A

PLN 75.95

Free delivery: Jul 16

If paid before 14:00

Part no. 4H0959792F

VW Touareg 7P Front Door Control Module Unit ECU Passenger Side 4H0959792F

PLN 94.95

Free delivery: Jul 16

If paid before 14:00

Part no. 8X0971693

Audi A1 8X Door Wiring Harness Loom Rear Left Right N/O/S Cabling 8X0971693

PLN 42.95

Delivery: Jul 16

If paid before 14:00

Part no. 4N0955557A

Audi A6 C8 A7 C8 Door Crash Impact Sensor Front Left N/S Side 4N0955557A

PLN 42.95

Delivery: Jul 16

If paid before 14:00

Part no. 4K5971693AJ

Audi A6 C8 Door Wiring Harness Loom Rear Left Right N/O/S 4K5971693AJ

PLN 180.95

Free delivery: Jul 16

If paid before 14:00

Part no. 7599382

BMW F20 LCI F22 F30 F31 F34 F36 N55 Engine Gearbox Wiring Harness Loom 7599382

PLN 759.95

Free delivery: Jul 16

If paid before 14:00

Part no. 7810950-8

BMW E60 E61 LCI 530d M57N2 232HP Engine Control ECU Kit DDE 7810950 Automatic

PLN 1,234.95

Free delivery: Jul 16

If paid before 14:00

Part no. LR025607-1

Land Rover Freelander 2 L359 Rear Tail Light Left N/S Harness Wire LR025607

PLN 246.95

Free delivery: Jul 16

If paid before 14:00

Part no. 9281068

Antenna Receiver BMW F33 F83 M4 Convertible Aerial DAB Unit 9281068

PLN 94.95

Free delivery: Jul 16

If paid before 14:00

Part no. 5A1DC85

BMW G01 G08 G11 G12 Wireless Charger Console Phone Charging Module 5A1DC85

PLN 180.95

Free delivery: Jul 16

If paid before 14:00

Part no. 8W6947355C

Audi A5 S5 F5 Door Card Panel LED Module Light Unit Front Left N/S 8W6947355C

PLN 42.95

Delivery: Jul 16

If paid before 14:00

Part no. 8K0959792J

Audi A4 B8 Door Module Front Left N/S Control Unit Module ECU 8K0959792J

PLN 47.95

Delivery: Jul 16

If paid before 14:00

Part no. LR073313

Land Rover Discovery Sport L550 Battery Wiring Harness Cable Lead FK72-14A280-AC

PLN 189.95

Free delivery: Jul 16

If paid before 14:00

Part no. 8P0907115AP-3

Audi S3 8P 2.0 TFSI CDLA 265HP Engine ECU Kit BCM Module Key 8P0907115AP Manual

PLN 1,424.95

Free delivery: Jul 16

If paid before 14:00

Part no. A1635400734

Mercedes-Benz M ML W163 Rear Left Right Door Wiring Loom Harness A1635400734

PLN 47.95

Delivery: Jul 16

If paid before 14:00

Part no. 8507915

Engine Wiring BMW F20 F30 N47S1 EU5 Loom Module Harness Cable 8507915

PLN 474.95

Free delivery: Jul 16

If paid before 14:00

Part no. 9367807-1

BMW X5 F15 Battery B+ Positive Terminal Point Engine Compartment 9367807

PLN 94.95

Free delivery: Jul 16

If paid before 14:00

Part no. 9257426

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

PLN 46.95

Delivery: Jul 16

If paid before 14:00

Part no. 9284295

BMW X1 U11 G26 F30 High Voltage Switch Safety Connector 9284295

PLN 89.95

Free delivery: Jul 16

If paid before 14:00

Part no. 6832062

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

PLN 379.95

Free delivery: Jul 16

If paid before 14:00

Part no. 9231466

BMW 2 3 4 Series F22 F30 F32 Antenna Amplifier Module Trap Circuit 9231466

PLN 46.95

Delivery: Jul 16

If paid before 14:00

Part no. 6822077

BMW F20 F21 F22 F30 F31 Head Unit Basic Media Navigation Headunit 6822077

PLN 218.95

Free delivery: Jul 16

If paid before 14:00

Part no. 1J0973332A

Audi RS4 B8 Cable Loom Wiring Plug Socket 2 Pins 1J0973332A

PLN 42.95

Delivery: Jul 16

If paid before 14:00

Part no. 9146651

BMW X5 X6 E70 E71 Board Monitor Sat Nav System Screen 8,8" 9146651

PLN 474.95

Free delivery: Jul 16

If paid before 14:00

Part no. HK72-18C847-CA

Land Rover Discovery Sport L550 Aerial Antenna Amplifier Unit HK72-18C847-CA

PLN 75.95

Free delivery: Jul 16

If paid before 14:00

Part no. A2185402110

Mercedes C218 USB AUX Socket Port Cable Harness Wire Cable A2185402110

PLN 99.95

Free delivery: Jul 16

If paid before 14:00

Part no. 4K0971237

Audi A6 C8 A7 4G Engine Earth Line Ground Wiring Harness Cable 4K0971237

PLN 142.95

Free delivery: Jul 16

If paid before 14:00

Part no. A6401500734-2

Mercedes W169 W245 OM640.941 140HP Engine Control ECU Kit A6401500734 Automatic

PLN 807.95

Free delivery: Jul 16

If paid before 14:00

Part no. HPLA-14N144-AD

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

PLN 156.95

Free delivery: Jul 16

If paid before 14:00

Part no. A2035407308

Mercedes-Benz C-Class W203 Rear Left Right Door Wiring Loom Harness A2035407308

PLN 46.95

Delivery: Jul 16

If paid before 14:00

Part no. 079971627Q

Audi RS4 B8 RS5 8T Fuel Injector Wiring Loom Harness 4.2 V8 079971627Q

PLN 156.95

Free delivery: Jul 16

If paid before 14:00

Part no. 4L0919614B

Audi Q7 4L Navigation Multimedia Control Panel Knob Unit 4L0919614B

PLN 2,089.95

Free delivery: Jul 16

If paid before 14:00

Part no. 35962

BMW X3 Series E53 E83 iPod Interface Retrofit Connection Module 0035962

PLN 142.95

Free delivery: Jul 16

If paid before 14:00

Part no. 8580061

BMW F40 F48 Mini F55 F56 Battery Starter Cable Wiring Loom B47B B47D 8580061

PLN 46.95

Delivery: Jul 16

If paid before 14:00

Part no. A1679005218

Mercedes W167 W177 Radio Stereo Nav Navigation Head Unit High A1679005218

PLN 1,899.95

Free delivery: Jul 16

If paid before 14:00

Part no. DPLA-7H417-BA

Range Rover L405 L494 Transfer Case Control Unit Module ECU Bosh DPLA-7H417-BA

PLN 99.95

Free delivery: Jul 16

If paid before 14:00

Part no. A1698208626

Mercedes-Benz A B W169 W245 Door Control Module Right Rear O/S A1698208626

PLN 46.95

Delivery: Jul 16

If paid before 14:00

Part no. 9389364

Mini F54 F55 F56 F57 Head-Up Display HUD Projector Dashboard Screen 9389364

PLN 826.95

Free delivery: Jul 16

If paid before 14:00

Part no. 8M5T-19G488-AK

Ford Mondeo MK4 Galaxy S-Max Bluetooth Voice Control Module 8M5T-19G488-AK

PLN 46.95

Delivery: Jul 16

If paid before 14:00

Part no. A2075404207

Mercedes W204 M276 NOX Sensor Adapter Right O/S Harness Wiring Cable A2075404207

PLN 142.95

Free delivery: Jul 16

If paid before 14:00

Part no. 6857314

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

PLN 61.95

Free delivery: Jul 16

If paid before 14:00

Part no. 09D927750LJ

Porsche Cayenne 955 Automatic Gearbox Transmission Module 3.0 TDI 09D927750LJ

PLN 427.95

Free delivery: Jul 16

If paid before 14:00

Part no. JPLA-14N030-AC

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

PLN 113.95

Free delivery: Jul 16

If paid before 14:00

Part no. 8W6971035AN

Audi A5 F5 Front Door Wiring Harness Cable Driver's Side 8W6971035R

PLN 218.95

Free delivery: Jul 16

If paid before 14:00

Part no. 5M5T-14B192-DA

Land Rover Freelander L359 Relay 4-Pin Black 12V 40A FOMOCO 5M5T-14B192-DA

PLN 42.95

Delivery: Jul 16

If paid before 14:00

Part no. 8T0971035G

Audi A5 8T Coupe Front Door Wiring Loom Harness Driver's Side Cable 8T0971035G

PLN 61.95

Free delivery: Jul 16

If paid before 14:00

Part no. JS7T-14G370-JNA

Ford Ranger Wildtrak Mk6 Sat Nav Radio Control Module APIM JS7T-14G370-JNA

PLN 1,139.95

Free delivery: Jul 16

If paid before 14:00

Part no. 8V41-13A602-AD-2

Ford Kuga Mk1 Rear Tail Light Lamp Inner Right O/S Wire Cable 8V41-13A602-AD

PLN 46.95

Delivery: Jul 16

If paid before 14:00

Part no. A2214407910

Mercedes W221 Rear Door Wiring Loom Harness Cable Left Right N/O/S A2214407910

PLN 94.95

Free delivery: Jul 16

If paid before 14:00

Part no. 6868077-2

BMW F20 F21 F22 F30 F31 Power Steering Rack Wiring Harness Cable 6868077

PLN 94.95

Free delivery: Jul 16

If paid before 14:00

Part no. 8P0907063R

Audi TT 8J BCM Body Control Module Unit ECU 8P0907063R

PLN 284.95

Free delivery: Jul 16

If paid before 14:00

Part no. F30-SCREEN-1

BMW F30 F31 Dashboard Screen Central Information Display Android 10.25"

PLN 759.95

Free delivery: Jul 16

If paid before 14:00

Part no. 6819934

BMW X5 F15 X6 F16 Front Door Card Light Wiring Loom Left Right N/O/S 6819934

PLN 137.95

Free delivery: Jul 16

If paid before 14:00

Part no. 7PP907530J

Porsche Cayenne 92A Gateway Control Module 4.8 V8 4852 Petrol 7PP907530J

PLN 194.95

Free delivery: Jul 16

If paid before 14:00

Part no. 9343317

Audio Amplifier BMW F20 F21 F22 Harman/Kardon Active Sound Design System 9343317

PLN 189.95

Free delivery: Jul 16

If paid before 14:00

Part no. 1J0803219

Skoda Octavia II Battery Bracket Battery Clamp Holder Mounting 1J0803219

PLN 46.95

Delivery: Jul 16

If paid before 14:00

Part no. 284B13867R

Mercedes Citan W415 Renault Kangoo BCM Body Control Module Unit ECU 284B13867R

PLN 284.95

Free delivery: Jul 16

If paid before 14:00

Part no. A2198200326

Door Module Mercedes C219 Rear Door Right O/S Control Module A2198200326

PLN 46.95

Delivery: Jul 16

If paid before 14:00

Part no. A2465402050

Mercedes W176 Fuse Box Control Unit SAM Module Relay A2465402050

PLN 70.95

Free delivery: Jul 16

If paid before 14:00

Part no. 3AF035552

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

PLN 46.95

Delivery: Jul 16

If paid before 14:00

Part no. 7S7F-18C821-CB

Ford Transit Mk7 Sony Radio Player 6 CD Changer Head Unit 4M5T-18C815-CJ

PLN 332.95

Free delivery: Jul 16

If paid before 14:00

Part no. A2215408335

Mercedes W221 Door Harness Left Right N/O/S Rear Door Wiring Loom A2215408335

PLN 94.95

Free delivery: Jul 16

If paid before 14:00

Part no. 8W0941828

Audi A4 B9 A5 F5 Fuse Box Battery Terminal Housing 3.0 TDI 8W0941828

PLN 165.95

Free delivery: Jul 16

If paid before 14:00

Part no. A2219000100

Mercedes W221 Digital Audio DAB Receiver Control Unit Module A2219000100

PLN 46.95

Delivery: Jul 16

If paid before 14:00

Part no. 8631634

BMW X5 F15 Earth Ground Cable Negative Battery Lead Wiring 8631634

PLN 123.95

Free delivery: Jul 16

If paid before 14:00

Part no. 038903018P

Volkswagen Golf Mk4 GTi Alternator Generator 110A 14V 038903018P

PLN 137.95

Free delivery: Jul 16

If paid before 14:00

Part no. 2GA971395

VW Volkswagen T-ROC A11 Front Door Ambiente Light Wiring Left N/S 2GA971395

PLN 42.95

Delivery: Jul 16

If paid before 14:00

Part no. EB3T-14A597-BA

Ford Ranger Mk3 A/C Climate Control Sun Light Sensor Unit EB3T-14A597-BA

PLN 94.95

Free delivery: Jul 16

If paid before 14:00

Part no. 8W6971104G

Audi A5 S5 RS5 F5 Rear Bumper Wiring Harness Set PDC Parking Sensor 8W6971104G

PLN 237.95

Free delivery: Jul 16

If paid before 14:00

Part no. 8N7035223A

Audi TT 8N Roadster Bose Amplifier Audio Sound AMP 8N7035223A

PLN 512.95

Free delivery: Jul 16

If paid before 14:00

Part no. 167859

BMW X5 Series E53 Widescreen Motorway and Trunk Road Unit Module 167859

PLN 93.95

Free delivery: Jul 16

If paid before 14:00

Part no. A2125403100

Mercedes W212 Rear Parking Sensor PDC Wiring Harness Loom A2125403100

PLN 189.95

Free delivery: Jul 16

If paid before 14:00

Part no. A2059007147-1

Mercedes W205 C200 264.915 198HP Engine Control ECU Kit A2649000700 Automatic

PLN 2,374.95

Free delivery: Jul 16

If paid before 14:00

Part no. 7578538

BMW F12 F13 F87 M2 N55 Integrated Power Supply Connector Wiring Harness 7578538

PLN 47.95

Delivery: Jul 16

If paid before 14:00

Part no. 9259467

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

PLN 93.95

Free delivery: Jul 16

If paid before 14:00

Part no. 8605454

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

PLN 237.95

Free delivery: Jul 16

If paid before 14:00

Part no. 6807634

BMW X5 F15 F20 F30 SRS Air Module Bag Control Unit Module ECU 6807634

PLN 94.95

Free delivery: Jul 16

If paid before 14:00

Part no. 9289374

BMW X5 X6 F15 F85 F16 F86 Front Battery Fuse Box Positive Distribution Terminal

PLN 46.95

Delivery: Jul 16

If paid before 14:00

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