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

Make

PDC Module BMW F40 G20 G21 Parking Assistant Control Unit Module ECU 9873545

€37.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. A2215400210

Mercedes W221 Door Wiring Cable Rear Right O/S Door Loom Harness A2215400210

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. A0025427419

Mercedes-Benz A B E M W169 W245 W210 W163 Relay 5-Pin Yellow Hella A0025427419

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8582280-1

BMW F20 F21 116d N47N 116HP Engine Control ECU Kit DDE 8582280 Manual

€303.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. A2229009811

Mercedes W205 W222 Air Suspension Module Control Unit ECU A2229009811

€132.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 7599382

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

€32.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8631727-4

Bmw X1 E84 20iX N20 184HP Engine Module Unit ECU Kit DME 8631727 Automatic

€560.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9380945

Mini Cooper F55 F56 F60 HSD line HU - CID 9380945

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 7182206-2

BMW F01 F02 F03 F04 Rear Tail Light Lamp Wiring Harness Plug Right O/S 7182206

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. A2055407067

Mercedes W205 Front Door Harness Wiring Loom Passenger Side A2055407167

€37.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. A2198200226

Door Module Mercedes C219 Rear Door Left N/S Control Module A2198200226

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. GOLF-5K-SCREEN

Volkswagen Golf Mk5 Mk6 Passat B6 B7 Car Radio System Touchscreen 7"

€132.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9117831

Negative Battery Lead BMW F45 F46 X1 F48 IBS Minus Pole Cable 9117831

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. A1779001604

Mercedes W177 W247 Door Module Front Right Control Unit A1779001604

€28.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. AV4T-14A076-AA

Ford Kuga Mk1 Engine Bay Fuse Box Cover Lid Top Plate AV4T-14A076-AA

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6G9T-14K131-CB

Ford Galaxy Mk2 Fuse Box Relay Fusebox Control Unit Module 6G9T-14K131-CB

€37.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 3V0971693AA

Skoda Superb 3V Door Wiring Harness Cable Loom Rear Left N/S 3V0971693AA

€32.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6812244

BMW F45 F46 Wiring Harness Door Cable Loom Rear Right O/S 6812244

€37.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6821139

BMW F10 LCI F20 F21 F30 F31 DAB Bluetooth Head Unit Basic 6821139

€113.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9181455

BMW X1 Series E84 Antenna Aerial Noise Suppression Filter 9181455

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. A2215407710

Mercedes W221 Battery Negative Terminal Cable Wiring Wire A2215407710

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. A1698209926

Mercedes W169 W245 ECU Air Control Unit Sensor Module A1698209926

€28.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. A1330901500

Mercedes W176 A45 C117 CLA45 Engine Sound Generator Valve A1330901500

€142.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. LR174461

Range Rover Velar L560 Rain Sensor Module Control Unit P8D2-17D547-CA

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8572874-1

BMW F10 F11 525d N47S1 218HP Engine ECU DDE Kit CAS4 Key 8572874 Automatic

€854.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. M8D2-14407-AB

Range Rover Evoque L551 AdBlue Tank Wiring Loom Harness Cable M8D2-14407-AB

€51.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 7N0971557B

Seat Alhambra 7N Front Door Wiring Harness Cable Driver Side 7N0971557B

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 5G0907159D

VW Volkswagen Golf R 5g BA BQ Impact Sound Control Unit Module ECU 5G0907159D

€28.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 81A971693

Audi Q2 Rear Door Wiring Loom Harness Left Right N/O/S 81A971693

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. A2129008816

Mercedes X218 Radio Comand Navigation Seat Control Unit Module A2129008816

€256.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6935599

BMW 1 3 Series E81 E87 E90 PDC Parking Ultrasonic Sensor Red Japanrot Japan Red

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8387540

BMW X3 E83 Positive B Battery Terminal Point Case 8387540

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 2K2945096G-2

Volkswagen Caddy 2K Rear Taillight Lamp Wiring Cable Left N/S Side 2K2945096G

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. A2118704026

Mercedes W211 Door Module Rear Left N/S Control Unit ECU A2118704026

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6915943

BMW 7 X3 Z4 Series E65 E66 E83 E85 E86 Interface Japan Luggage Module 6915943

€94.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. A0018209126

Mercedes CLC CLK Class CL203 W203 C209 Crash Sensor A0018209126

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. A1775401910

Mercedes W177 Door Wiring Rear Door Left N/S Module Harness Cables A1775401910

€28.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 4E0959655K

Audi A8 4E S8 D3 SRS Bag Control Air Module Unit Bosch 4E0959655K

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 198393-01

Volkswagen Polo 6R Light Lamp Control Module Unit ECU 198393

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 4H0035446A

Audi A7 4G Antenna Signal Amplifier Control Unit ECU 4H0035446A

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9462544

BMW F20 F30 F31 Mini F55 F56 F60 Control Unit Air Conditioning Module 9462544

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8U0971030AF

Audi Q3 8U Front Door Wiring Harness Loom Cable Passenger Side 8U0971030AF

€32.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 2GA971694A

VW Volkswagen T-Roc Mk1 Rear Door Cable Harness Wiring Loom Right O/S 2GA971694A

€32.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 80A941823A

Audi Q5 FY Positive Battery Terminal Potential Distributor 80A941823A

€56.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 4H0937517

Audi A8L 4H Fuse Relay Battery Junction Box Housing 4H0937517

€66.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9362351-1

Mini F55 F56 BMW F45 i3 I01 Head Unit Radio DAB Media Player Unit 9362351

€94.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8704090

BMW F20 F21 F30 Mini F55 F56 HSD Cable HU CID Wiring Cable 8704090

€32.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8R0907468L

Audi A5 8F Gateway Control Unit Module ECU 8R0907468L

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. A2229003413

Mercedes W205 W222 W253 Air Conditioning A/C Module Control Unit A2229003413

€42.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. A2129001711

Mercedes W212 PDC Parking Distance Control Unit Module Sensor A2129001711

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. A2198203326

Mercedes C219 Rear Door Control Module Unit Left N/S A2198203326

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9389286

Door Wiring Mini Clubman F54 Front Passanger Side N/S Door Harness 9389286

€32.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. A1715409506

Mercedes R171 Window Control Switch Wiring Cable Driver Side A1715409506

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. BS7T-14K131-AA

Land Rover Discovery Sport L550 Fuse Relay Box BS7T-14K131-AA

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 4H0907182H

Audi A8 D4 4H Front Seat Backrest Control Module Unit ECU 4H0907182H

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8W0906121B

Audi A4 B9 A5 F5 2.0 TDI Engine Fuel Pump Control Unit Module 8W0906121B

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8W8971035R

Audi A5 F5 Door Trim Panel Harness Wiring Wire Front Driver's Side 8W8971035R

€80.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 4E0035652E

Audi A6 C6 MMI Multimedia Sat Nav Navigation Control Head Unit 4E0035652E

€113.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6R0907530C

Seat Ibiza 6J Central Gateway Module Control Unit 6R0907530C

€28.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. A2465400140

Mercedes-Benz A-Class W176 Equipment Electrical Cover Fuse Box A2465400140

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8602123

BMW i3 I01 Hybrid Electric Earth Ground Cable Line Strap Battery Lead 8602123

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. A2038206426

Mercedes-Benz C-Class W203 Front Right Door O/S Control Unit Module A2038206426

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. VUX500320

Land Rover Discovery 3 L319 Radio Stereo CD Player Head Unit VUX500320

€118.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 4M5T-14B056-BF

Ford Focus Mk2 Airbag Control Module Unit ECU Bosch 4M5T-14B056-BF

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 7356250

BMW E92 LCI Coupe Mini R56 R57 Xenon Headlight Ballast Headlamp Control 7356250

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 2Q0937615A-1

Audi A1 GB VW Transporter T6 Fuse Relay Box Power Supply Unit 2Q0937615A

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8634246

Mini F54 F60 B42 B46 B48 Ignition Injection Valve Wiring Harness Loom 8634246

€32.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6900583-1

BMW 7 Series E65 E66 Cable Wire Power Distribution Box 6900583

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 3D0909601F

VW Volkswagen Touareg 7L Air Module Control Unit ECU SRS 3D0909601F

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 7928596

BMW G05 G20 G21 G30 Stereo Sound Amplifier Module Control Unit ECU 7928596

€151.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8T8945096D-2

Audi A5 8T Tail Light Lamp Side Panel Rear Right O/S Harness Wire 8T8945096D

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. JPLA-14D617-CB

Range Rover Evoque L551 Front Door Control Module Passenger Side JPLA-14D617-CB

€56.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 7661503

Battery Cable Relay BMW E60 E64 E82 E90 Electrical Unit 7661503

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9143439

BMW E81 E87 E90 E91 E92 6-disc CD Changer without Magazine 9143439

€47.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 7PP907064LA

Porsche Macan 95B Body Comfort Module Control Unit 7PP907064LA

€237.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. A2038270642

Mercedes-Benz CLC-Class CL203 Antenna Amplifier Rear Right O/S A2038270642

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 03L903143K

Audi A4 B8 2.0 TDI Alternator Mount Tensioner Pulley Bracket Support 03L903143K

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 141951253B-4

Audi VW Volkswagen Seat Relay Number 53 Unit Module 4 Pins Set Of 4 141951253B

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 7619250

Alternator Bracket BMW F10 F20 F22 F30 F32 LCI G30 B47 Supporting Mount 7619250

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 7804110

BMW 5 Series F10 F11 LCI Earth Cable Battery Cable 7804110

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8677247-1

Mini Countryman F60 Cooper Cable Alternator Starter Wire 12428677247 8677247

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. A2055409591

Mercedes W205 Door Wiring Loom Harness Cable Rear Right Left N/O/S A2055409591

€56.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8368932

BMW E39 Alarm Sensor Comfort Control Module Unit ECU 55892110

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. LR084460

Land Rover Discovery Sport L550 Starter Motor 2.0 Diesel LR084460 GJ32-11001-BD

€37.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8517874-12

BMW F20 F21 F30 116d 316d N47N 116HP Engine Control ECU DDE Kit 8517874 Manual

€189.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 06K907425J-4

Seat Leon Cupra 5F 2.0 TFSI 290HP DNUC Engine ECU Kit 06K907425J + BCM + Key

€222.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9350003

Safety Control Unit BMW F01 LCI F07 F10 F11 F25 Air Module Bag ECU 9350003

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9315104

BMW X3 F25 X4 F26 Door Wiring Harness Front Driver's Door Wiring Loom 9315104

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8H52-18D540-AA

Range Rover L322 Webasto Telestart Pre Heating Control Module 8H52-18D540-AA

€113.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8W6971104M

Audi A5 F5 Rear Bumper Parking Sensor Wiring Loom Cable Harness 8W6971104M

€47.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 5B3FDF9

BMW F74 Gran Coupé Pedestrian Protection Sensor PTS 5B3FDF9

€75.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8P7907115F

Audi A3 8P 1.8 TFSI 160HP Engine Control Unit ECU Kit 8P7907115F Manual

€146.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. A2139001710

Keyless Go Mercedes W213 W222 Keyless Entry Control Unit Module A2139001710

€32.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. A1775400358

Mercedes W177 Ground Line Cable Wire A1775400358

€51.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. A2049009301

Mercedes W212 Media Interface Control Unit Module Multimedia A2049009301

€28.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9267214

BMW F20 F21 F22 F30 F31 F32 F33 F34 Air Control Unit Module ECU 9267214

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. DPLA-17509-BB

Range Rover Sport L494 Rear Window Wiper Control Module Unit ECU DPLA-17509-BB

€28.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. A0001502780

Mercedes W203 CL203 W204 M272 Petrol Ignition Coil Cable Connector A0001502780

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8D0972695H

Audi Q3 8U OBD Plug Wiring Harness Cable 8D0972695H

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

...

Showing 8515-8613 of 18504 products