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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Wiring Cable BMW F06 F12 F13 Electric Parking Hand Brake Handbrake Set 9277202

€32.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9107381

Mini F54 Kafas Camera Control Module Unit ECU 9107381

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. F10-SCREEN-1

BMW F10 F11 On-Board Screen Central Information Display Camera 10,25" 4+64G

€284.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 4G1035021E

Audi A7 4G Radio Navigation CD Player Control Head Unit 4G1035021E

€1,329.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8T0862335F-1

Audi A4 B8 Bluetooth Multimedia Interface Control Module Unit ECU 8T0862335E

€28.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. F30-NBT-CP

Unbranded BMW F30 NBT Multimedia Screen Display Radio Navigation F30-NBT-CP

€237.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6949450

BMW 5 Series E60 E61 Centre Console DSC PDC Switch Center Cluster 6949450

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. F1BT-18C815-GK

Ford Transit Mk8 Radio Player CD Multimedia Head Unit Module F1BT-18C815-GK

€32.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. DK52-14A583-AD

Land Range Rover L405 Tailgate Upper Loom Wiring Harness Cable DK52-14A583-AD

€80.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7561834-13

BMW E87 E90 120i 320i N46 150HP Engine Control DME Module 7561834 Automatic

€123.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 3C0907521

Heater Resistor Volkswagen VW Touran 1T Blower Motor Fan Resistor 3C0907521

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 2109635

Ford Connect Mk2 Engine Starter Motor 1.5 EcoBlue 3M5T-11000-CG

€28.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6G9T-14A076-AF

Ford Mondeo MK4 Fuse Box Cover Panel Hosing Lid 6G9T-14A076-AF

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9321024

Mini F54 F55 F56 F57 F60 B+ Distributor Clubman Countryman Active Tourer 9321024

€42.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 5NA945308E-2

Volkswagen Tiguan Mk2 Tailgate Inner LED Light Lamp Wiring Right O/S 5NA945308E

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A1715409606

Mercedes R171 Wiring Cable Harness Front Passenger Door Wiring Loom A1715409606

€42.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. CPLA-17D547-AP

Land Rover Discovery Sport L550 Windscreen Rain Sensor Module CPLA-17D547-AP

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A2135406831

Mercedes W213 Rear Door Wiring Harness Keyless Left Right N/O/S A2135406831

€28.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7520912-1

BMW E60 E61 E63 E64 LCI Lid Cover Panel Electronic Box 7520912

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7P6919603

VW Volkswagen Touareg 7P Dashboard Multimedia Display Screen Panel 7P6919603

€137.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9329701

BCM Module BMW F20 F21 F30 F31 F32 Body Control Unit Module REM V2 9329701

€28.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A1679008207

Telematics Module Mercedes W177 W247 Communication Control Unit ECU A1679008207

€113.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 4E0910552G

Audi S8 D3 5.2 FSI 450HP BSM Quattro Engine Unit ECU 4E0910552G Automatic

€241.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6791748

BMW F20 F21 F30 F31 DXC Pulse Generator Sensor Front Axle N47N 6791748

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7P6035552M

VW Touareg 7P Antenna Amplifier Signal Booster Module Rear Left N/S 7P6035552M

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A1695400506

Mercedes W169 Front Bumper Parking Sensor Wiring Loom Cable Harness A1695400506

€47.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8T0959792H

Door Module Audi A5 8T A4 B8 Control Front Left N/S Unit 8T0959792H

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 02E911024H

Volkswagen Seat Skoda Audi 2.0 TDI Diesel Engine Starter Motor Valeo 02E911024H

€61.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A0009821923

Mercedes W205 Interior Trunk Fuse Box Automotive Pink Relay A0009821923 Red

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 4G8971035AJ

Audi A7 4G8 Front Door Harness Wiring Loom Cable Driver's Side 4G8971035AJ

€47.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. HJ32-12A610-DB

Land Rover Discovery L550 Glow Plug Relay Bracket Mount Support HJ32-12A610-DB

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8512047-7

BMW E90 E91 LCI N47N 320d 163HP ECU Module KIT DDE 8512047 Automatic

€142.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9380945

Mini Cooper F55 F56 F60 HSD line HU - CID 9380945

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 5Q0971250P

Audi S3 8V Battery Wire Cable Negative Earth Lead 95Q0971250P

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A4539003802

Smart 453 Fortwo Air Conditioning Heater Climate Control Unit A4539003802

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. Q0008767V002

Smart Roadster 452 Air Module Control Unit SRS 0008767V002

€237.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A0065424220

Mercedes W164 W251 High Tone Horn Signal Right O/S A0065424220

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7856771

Injection Wiring BMW F90 M5 F91 M8 S63M Cyl. 1-4 Loom Valve Ignition 7856771

€37.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7801203

BMW X5 E70 E87 F10 F11 F15 F25 F30 Diesel Engine Starter Motor 7801203

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A2139005213

Mercedes W213 Door Control ECU Module Front Left N/S A2139005213

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 5A19AC3

BMW F40 ACSM5 Control Unit Air Module ECU Control Module 5A19AC3

€37.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7627023

BMW F20 F21 F30 Petrol N13 Automatic Gearbox Engine Sensor Module 1 Wiring

€66.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. BK3T-17A477-BA

Ford Transit Mk8 Wiper Motor Plug Wiring Loom Harness Connector BK3T-17A477-BA

€37.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A0009050038

Mercedes W212 Multi-Purpose Windscreen Camera Control Unit Module A0009050038

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8E5035223E

Audi A4 Avant B7 Bose Stereo Radio Sound System Amplifier Module 8E5035223E

€42.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. LR037710-2

Range Rover Evoque L538 Rear Tail Light Lamp Connector Wire Right O/S LR037710

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7L6035195

VW Volkswagen Touareg 7L Radio Player Navigation Sat Nav Head Unit 7L6035195

€70.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. JK62-01820-AF

Land Rover Range Rover Sport L494 Center Console Air Vent Grille JK62-01820-AF

€75.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A2059000524

Mercedes W207 W212 Telematics Services Communication Module A2059000524

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6900582

BMW 7 Series E65 E66 Fuse Board Power Distribution Box

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 0148459-PS

Mini Cooper One R50 Fuel Filler Cover Flap 0148459 Pure Silver - 900

€26.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 4F9971085E

Audi A6 C6 Avant Rear Bumper PDC Wiring Loom Parking Sensor 4F9971085E

€32.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8636064

Wiring Cable BMW F20 F30 LCI B48 Engine Injector Ignition Loom 8636064

€85.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 83A945094D-1

Audi Q3 RSQ3 F3 Rear Tail Light Lamp LED Right O/S Harness Wire Loom 83A945094D

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A2469066300-2

Mercedes W246 Rear Light Trunk Tailgate Wiring Inner Left N/S A2469066300

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A0009059101

Mercedes-Benz E-Class W207 W212 ESP Yaw Rotation Rate Sensor A0009059101

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7646814-1

BMW F10 F20 F30 LCI Alternator Generator Unit Diesel B47 7646814

€66.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9P1919607E

Porsche 718 Boxster 982 Multimedia Sat Navigation Screen Display 9P1919607E

€716.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8R0971693B

Audi Q5 8R Rear Door Card Wiring Loom Left Right N/O/S 8R0971693

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A0009063000

Alternator Generator Mercedes W204 W212 M271 Engine Valeo 150A 14V A0009063000

€94.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7936365

Mini F55 F56 F57 Integrated Supply Module Z11 Control Unit Module 7936365

€66.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A4475400082

Mercedes Vito W447 Fuse Box Cover Trim Panel Lid Housing A4475400082

€47.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8T0959793F

Door Module Audi A5 8T A4 B8 Control Front Right O/S Unit 8T0959793F

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9247081

BMW X1 E84 Wiring Loom Harness Passenger Side 9247081

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9291977

Mini Roadster R59 Cabrio Convertible Top Module CVM 61359291977 9291977

€47.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 4G8971029DQ

Audi A7 4G8 Front Door Harness Wiring Loom Cable Driver's Side 4G8971029DQ

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8S0820047

Audi TT FV 8S A/C Air Condition Climate Control Module Unit ECU 8S0820047

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. FK72-7L195-BA

Land Rover Discovery Sport L550 Vibration Damper Control Module FK727L195BA

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6799712

BMW F10 F11 ICM Management Control Unit Module DSC Brakes 6799712

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A1698209126

Door Module Mercedes W169 W245 Rear Left N/S Control Unit A1698209126

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 5A67847

BMW F74 Gran Coupé Crash Impact Sensor Door Front Left Right N/O/S 5A67847

€37.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 1K0971349MR

Volkswagen Scirocco Mk3 Alternator Wire Wiring Cable Harness Loom 1K0971349MR

€66.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9242204

Wiring BMW F12 F13 F06 Cable Set For Electric Parking Brake Handbrake 9242204

€80.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. GH22-14K016-EA

Land Rover Discovery 4 L319 Fuse Box Upper Lid Cover Panel GH22-14K016-EA

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 5A0FAD6

BMW i4 G26 Hybrid Electric Earth Ground Cable Negative Battery Lead 5A0FAD6

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. HPLA-14F392-JB

Land Range Rover Sport L494 Air Suspension Module Control ECU HPLA-14F392-JB

€37.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 1K0907655D

VW Touran 1T Yaw Sensor ESP Rotation Rate Control Unit Module 1K0907655D

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9496818

BMW G60 G61 G68 U10 U11 U12 Impact Crash Accelerating Sensor 9496818

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. AC1T-9K499-FNA-1

Ford Transit Mk7 Engine Bay Fuse Box Wiring Loom 2.2 TDCi AC1T-9K499-FNA

€75.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6801327

BMW X5 F15 Wiring Harness Loom Cable 6801327

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 5Q0959593B-1

VW Golf 5G Audi S3 A3 8V Door Module Control Unit Front Driver Side 5Q0959593B

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. GOLF-5K-SCREEN-4

VW Golf Mk5 Mk6 Passat B6 B7 Car Radio Display MMI Multimedia Touch Screen 7"

€237.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9311280

BMW X3 F25 Fan Heater Blower Unit Motor Wiring Cable Harness Loom 9311283

€33.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8T0959792D

Audi A5 8T Front Door Control Module Unit Left N/S 8T0959792D

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8K0907064JE

Audi A5 8T Body Control Comfort Unit Module BCM Convenience Unit ECU 8K0907064JE

€56.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8650701-1

BMW F80 M3 F82 F83 M4 S55 431HP Engine Module ECU DME Kit 8650701 Automatic

€1,125.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9237082

BMW F10 F11 Cable Harness Door Driver's Side Right O/S Wiring 9237082

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6921309

BMW E65 E66 Centre Console Front Armrest Tray Cables Wiring Set 6921309

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6J0035342C

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

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7L0937503A

Volkswagen Touareg 7L Fuse Box Relay Control Unit Module 7L0937503A

€37.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A7899823500

Mercedes EQA H243 Engine Relay 20A ECU A7899823500

€51.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9137804

Mini Cooper One R55 R56 R57 R58 R59 Drivers Door Wiring Harness Loom 9137804

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. CK52-14B518-ED

Range Rover L405 Door Wiring Loom Harness Cable Rear Right O/S CK52-14B518-ED

€42.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 4G8971036K

Audi A7 4G8 Front Door Harness Wiring Loom Cable Passenger Side 4G8971036K

€47.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9285275

BMW X3 F25 X4 F26 Bus Interface 60 Ohm Control Module Unit ECU 9285275

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. BJ32-14D618-AB

Land Rover Discovery L550 Front Door ECU Control Unit Right O/S BJ32-14D618-AB

€37.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9241330

BMW X1 E84 USB AUX-IN Socket Plug Input Connector Media Port 9241330

€28.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A2055404834

Mercedes W205 GLC C253 Touch Pad Controler Wiring Harness Loom A2055404834

€47.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. DV6T-14301-AD

Ford Transit Connect Negative Battery Cable Wiring DV6T-14301-AD

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

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