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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Ford Transit Mk7 AdBlue Control Module ECU 2.2 TDCi Diesel KV6A-5H298-CE

€23.95

Free delivery: Nov 12 – 13

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Audi A8 D3 Ignition Wiring Harness Guide Trim 3.2 FSI 06E971821

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

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Audi R8 42 Spyder Fuse Box Battery Terminal Cover Housing Clamp 420941824

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

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Mini F60 Countryman Door Wiring Harness Rear Left Right N/O/S 6805893

€37.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A1664409735

Mercedes ML W166 Battery Cable Alternator Starter Motor Wiring A1664409735

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8K2907115AE-2

Audi A4 B8 Engine Control 211HP ECU 2.0 Petrol TFSI CDNC Manual 8K2907115AE Kit

€189.95

Free delivery: Nov 12 – 13

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Mini R58 Door Module Harness Wiring Loom Cable Set Driver's Side 3456478

€23.95

Free delivery: Nov 12 – 13

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Part no. 7L5035507G

Porsche Cayenne 955 9PA Audio Antenna Amplifier 7L5035507G

€23.95

Free delivery: Nov 12 – 13

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Part no. A1775404910

Cable Wiring Mercedes W177 W247 Fuel Pump Sending Unit Plug Socket A1775404910

€47.95

Free delivery: Nov 12 – 13

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Part no. AH22-18C808-AB

Land Rover Discovery 4 L319 Harman Kardon Stereo Amplifier 3.0 TD AH22-18C808-AB

€23.95

Free delivery: Nov 12 – 13

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Part no. 5G9035577B

Volkswagen Golf 5G Antenna Amplifier Module Unit Tailgate Left N/S 5G9035577B

€66.95

Free delivery: Nov 12 – 13

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Part no. C2Z18539

Jaguar XF X250 Touch Screen Display Satellite Navigation Unit 9X23-10E889-AC

€85.95

Free delivery: Nov 12 – 13

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Part no. 7268293

BMW F30 Key Ignition Keychain Remote Control 51217206094

€37.95

Free delivery: Nov 12 – 13

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Part no. 8N0906018CR

Audi TT 8N ECU Engine Control Unit Module 1.8 Petrol 180HP Manual 8N0906018CR

€142.95

Free delivery: Nov 12 – 13

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Part no. 8Y5971035L

Audi A3 8L Front Door Trim Panel Wiring Harness Loom Cable Left N/S 8Y5971035L

€23.95

Free delivery: Nov 12 – 13

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Part no. 7210576-2

BMW F06 F12 Rear Lamp Tail Light Wiring Harness Plug Socket Right O/S 7210576

€23.95

Free delivery: Nov 12 – 13

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Part no. 5E7035577

Skoda Octavia Mk4 NX Aerial Antenna Amplifier Control Unit 5E7035577

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7527610-13

MINI One R50 W10 90HP Engine ECU Control Unit Module DME 7527610 Automatic

€28.95

Free delivery: Nov 12 – 13

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Part no. A1729058300

Mercedes SLK R172 Pedestrian Protection Impact Crash Sensor Module A1729058300

€32.95

Free delivery: Nov 12 – 13

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Part no. AMR5633

Land Rover Freelander L314 Burglar Bonnet Alarm Sensor Switch Anti Theft AMR5633

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. F1B1-12A650-ZC

Ford Fiesta St Mk7 Engine Control ECU 182HP 1.6 Petrol F1B1-12A650-ZC Manual

€89.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A1779069505

Mercedes C118 W177 H247 X243 Centre Console Ambient Light Wiring A1779069505

€61.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5M0035724

Volkswagen VW Golf Mk6 1K Aux Socket Port Switch 5M0035724

€23.95

Free delivery: Nov 12 – 13

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Part no. J9D3-19C211-PK

Land Rover Discovery L462 Sport L494 Radio Head Unit CD Player J9D3-19C211

€389.95

Free delivery: Nov 12 – 13

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Part no. 0C8927749AN

Porsche Cayenne Turbo 92a Automatic Gearbox Control Module ECU Unit 0C8927749AN

€341.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8377601

BMW E38 Door Windows Control Unit Module ECU ZB PMBT LOW 8377601

€23.95

Free delivery: Nov 12 – 13

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Part no. 1744987

BMW E39 Battery Clamp Fuse Cable Positive 1744987

€23.95

Free delivery: Nov 12 – 13

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Part no. 9268336

BMW MINI Clubman R55 R55N LCI Cable Adapter Lead Sensor Side Airbag 9207117

€23.95

Free delivery: Nov 12 – 13

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Part no. 03L906018AC-1

Audi A4 B8 A5 8T 2.0 TDI CJCA 143HP Engine Control ECU Kit 03L906018AC Manual

€132.95

Free delivery: Nov 12 – 13

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Part no. 7852129

Alternator BMW F90 M5 F91 M8 S63M Petrol Engine Generator 250A Valeo 7852129

€189.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2539009309

Mercedes C253 W293 Rain And Light Sensor Control Unit Module ECU A2539009309

€66.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9202014

BMW F10 F11 X5 E70 F13 Windscreen Rain Light Solar Sensor Control Unit 9202014

€23.95

Free delivery: Nov 12 – 13

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Part no. 8W6971035AN

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

€56.95

Free delivery: Nov 12 – 13

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Part no. 9387626

Mini F54 F55 F56 F57 F60 Windshield Rain Light Solar Sensor 9387626

€23.95

Free delivery: Nov 12 – 13

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Part no. 6956939-1

Changer Unit BMW E63 E64 6-disc Compact CD Head Player 6956939

€47.95

Free delivery: Nov 12 – 13

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Part no. 5WA962133B

VW Volkswagen Golf Mk8 CD1 Keyless Entry Module Aerial Antenna Unit 5WA962133E

€23.95

Free delivery: Nov 12 – 13

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Part no. A2075403332

Convertible Cable Mercedes A207 C207 Roof Rail Wiring Harness A2075403332

€32.95

Free delivery: Nov 12 – 13

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Part no. LR093066

Range Rover Sport L494 Glow Plug Wiring Right O/S 3.0 SDV6 Diesel 4R8Q-12A378-BH

€23.95

Free delivery: Nov 12 – 13

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Mercedes E-Class W211 S211 Front Right Door O/S Window Lifter Motor Regulator

€23.95

Free delivery: Nov 12 – 13

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Part no. 5Q0907530C

Audi A3 8V Central Gateway Control Unit Relay Module ECU 5Q0907530C

€23.95

Free delivery: Nov 12 – 13

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Part no. AV6T-14K131-AC

Ford Focus Mk3 Fuse Relay Box Board Housing AV6T-14K131-AC

€23.95

Free delivery: Nov 12 – 13

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Part no. LX6A-12A650-DGA

Ford Kuga C482 Engine ECU Unit 190HP 2.5 Petrol FHEV Automatic LX6A-12A650-DGA

€137.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. AH32-14633-AB

Range Rover Sport L320 Rear Door Wiring Loom Harness Left N/S AH32-14633-AB

€23.95

Free delivery: Nov 12 – 13

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Part no. 9365304

BMW F10 F20 F23 F30 Bluetooth Teleservices GPS Telematics Control Module 9365304

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. CX23-14K131-BC

Jaguar XF X250 Dual Battery Fuse Junction Box Control Module ECU CX23-14K131-BC

€127.95

Free delivery: Nov 12 – 13

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Part no. AH22-14K011-AB

Land Rover Discovery 4 L319 Radiator Wiring Harness Cable AH22-14K011-AB

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6W83-11572-AJ

Jaguar Xf X250 Ignition Switch Key Reader Module Lock Control 6W83-11572-AJ

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. HX63-19C164-SE

Jaguar XF X260 Stereo Audio Sound Amplifier HX63-19C164-SE

€80.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 2024711

Ford Focus Mk3 Kuga Mk2 Body Control Module BCM Fuse Relay Box F1FT-14K733-ABA

€42.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2059009643

Mercedes W205 Telematics Bluetooth Module Control Unit ECU A2059009643

€51.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9307421

Camera Control Unit BMW F20 F21 F30 F31 KaFAS 2 Camera Module ECU 9307421

€66.95

Free delivery: Nov 12 – 13

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Part no. 03L906012Q-2

Volkswagen Crafter 2.0 TDI CKTB 109HP Engine Module ECU Kit 03L906012Q Manual

€393.95

Free delivery: Nov 12 – 13

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Part no. A2049000308

Mercedes C204 Radio Multimedia CD Player Head Unit A2049000308

€165.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7P5971771A

Porsche Cayenne 92A Automatic Gearbox Wiring Loom Harness Cable 7P5971771A

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5A86B86

BMW F40 F44 Body Control Module Body Domain Controller Unit BDC ECU 5A86B86

€104.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. LR002139

Land Rover Freelander L359 Sunroof Sliding Roof Drive Motor 6H52-F53508-AC

€113.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. YWC500550

Range Rover Velar L560 Parking Distance Aid PDC Control Unit Module YWC500550

€89.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2469008819-2

Radio Head Unit Mercedes W176 W246 Audio 20 Media Player Navigation A2469008819

€265.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A0009002218

Mercedes C253 Fuel Pump Module Control Unit ECU A0009002218

€70.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2055408542

Mercedes W205 Front Passenger Door Wiring Harness Cable A2055408542

€80.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. AS7T-14B321-AC

Ford Mondeo Mk4 Air Control Module ECU Restraint Sensor Unit AS7T-14B321-AC

€70.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 3AF035552E

VW Volkswagen Passat B7 Radio Aerial Antenna Amplifier Right O/S 3AF035552E

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7210580-2

BMW F06 F12 F13 Rear Tailgate Trunk Lid Boot Lamp Light Wiring Right O/S 7210580

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2711500391-11

Mercedes W204 C207 W212 C250 M271.860 204HP Engine ECU Kit A2711500391 Automatic

€284.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5A7A0E5

Mini F65 F66 BMW F70 F74 Engine Wiring Harness Valvetronic Servomotor 5A7A0E5

€94.95

Free delivery: Nov 12 – 13

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Part no. 9252383

BMW X3 F25 Front Door Right O/S Wiring Loom Cables Harness 9252383

€23.95

Free delivery: Nov 12 – 13

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Part no. 5N0971369K

VW Tiguan 5N Front Seat Backrest Adjustment Wiring Harness Left 5N0971369K

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 03C906016FR

Audi A1 8X 1.4 TFSI CAXA 122HP Engine Control Unit ECU 03C906016FR Manual

€94.95

Free delivery: Nov 12 – 13

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Part no. BV6N-14B532-BJ

Ford Focus Mk3 Rear Door Control Module Left Right N/O/S BV6N-14B532-BJ

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7621063

BMW X3 F25 X4 F26 Earth Ground Cable Line Strap Battery Lead 7621063

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A0005400864

Mercedes C300h W205 Hybrid Negative Battery Ground Earth Cable A0005400864

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8E0972112A

Skoda Yeti 5L Rear Bumper PDC Parking Sensor Wiring Loom Harness 8E0972112A

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4E0919604A

Audi A8 S8 D3 Display Monitor Screen Sat Nav Multimedia Control Unit 4E0919604A

€165.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4E0907383H

Audi A8 D3 Towbar Trailer Hitch Control Module Trailer Detection ECU 4E0907383H

€51.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5Q1937084C

Audi Q2 GA Module BCM Body Control Unit Module ECU 5Q1937084C

€108.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2079059702

Mercedes-Benz W207 A207 Radio Aerial Antenna Amplifier Module Unit Right O/S

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. FK72-15K602-BA

Land Rover Discovery L550 Radio Remote Control Receiver 434 MHz FK72-15K602-BA

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9380999

BMW I01 IO1 LCI B+ Distributor Bracket Holder Mounting Base 9380999

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. KK3T-15604-BCM

Ford Transit Custom Body Control Module BCM Fuse Relay Box KK3T-15604-FAK

€170.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. LR026295

Range Rover Sport L320 Door Window Glass AS2 Front Left N/S 9H32-21411-AB

€75.95

Free delivery: Nov 10 – 13

If paid before 14:00

Part no. 1751812

Ford Mondeo Mk4 Galaxy Negative Battery Cable Wiring BG9T-14324-UAB

€23.95

Free delivery: Nov 12 – 13

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Part no. 922775205

BMW F20 LCI Power Distribution Box Battery Terminal Panel Module Unit 922775205

€23.95

Free delivery: Nov 12 – 13

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Part no. 8273005150B

Toyota Avensis T270 Fusebox Fuse Relay Box 1.8 Petrol 2ZRFAE 8273005150B

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. BK2T-9K499-ACF

Ford Transit Custom 2.2 TDCi Engine Bay Fuse Relay Box Fusebox BK2T-9K499-ACF

€142.95

Free delivery: Nov 12 – 13

If paid before 14:00

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Door Wiring Renault Master 3 Rear Sliding Cable Harness 241268711R

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2048200104

Sun Roof Wiring Mercedes W204 Panoramic Roof Motors Drive Harness A2048200104

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8R0035464A

Audi Q5 8R Amplifier AMP Booster Mount Bracket 8R0035464A

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. LR083803

Range Rover Evoque L538 Windscreen Washer Pump Motor Unit Module BJ32-17664-AD

€23.95

Free delivery: Nov 12 – 13

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Part no. 1Q0971557F

Volkswagen Eos 1F Front Door Wiring Loom Driver Side 1Q0971557F

€32.95

Free delivery: Nov 12 – 13

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Part no. JPLA-14F041-BJ

Range Rover Sport L494 Discovery L550 Body Control Module BCM ECU JPLA-14F041-BJ

€51.95

Free delivery: Nov 12 – 13

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Part no. 6937668

BMW X5 Series E53 Fuse Box Label Trim Cover Panel Sticker 6937668

€23.95

Free delivery: Nov 12 – 13

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Part no. 7G92-15C670-AD

Land Rover Freelander 2 L359 Sunroof Actuator Wiring Loom Cable 7G92-15C670-AD

€28.95

Free delivery: Nov 12 – 13

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Part no. LR025607-1

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

€56.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8K0941031D-2

Audi A4 B8 Headlight Headlamp Wiring Harness Cable Plug Left N/S 8K0941031D

€23.95

Free delivery: Nov 12 – 13

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Part no. A2049005908-4

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

€132.95

Free delivery: Nov 12 – 13

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Part no. 4M0959792H

Audi A5 F5 Door Module Control Unit ECU Front Passenger Side 4M0959792H

€42.95

Free delivery: Nov 12 – 13

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Part no. DM5T-15K857-BFC

Ford C-Max Mk2 Centre Console Wiring Loom Harness Cable DM5T-15K857-BFC

€28.95

Free delivery: Nov 12 – 13

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Part no. 9317092

Mini One F55 F56 Cable Electric Automatic Hold Brake Handbrake 9317092

€23.95

Free delivery: Nov 12 – 13

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Part no. 1K0951253A-1

Volkswagen Audi Seat Skoda Glow Plug Relay Unit 4 Pin Black 460 1K0951253A SET

€23.95

Free delivery: Nov 12 – 13

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