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

Find it faster

Match to your vehicle

Make

BMW F20 F21 F22 Stereo Audio Sound Amplifier Booster Module Unit 9322685

€156.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 2Q0937090A

Volkswagen Polo Gti AW1 Body Control Module BCM Unit 433MHZ 2.0 TFSI 2Q0937090A

€42.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9339275

BMW F06 F07 F10 F11 F12 F13 F25 F26 CAS4 Control Module Unit ECU 9339275

€51.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. XTA371C

Audi A3 8P Junsun XTA371C Multimedia Car Audio Radio Android Touch Screen 7"

€189.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. AV6N-19G481-AM

Ford Focus Mk3 Keyless Entry Control Module ECU Unit AV6N-19G481-AM

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8681185

BMW F40 F44 F46 X1 F48 Mini F54 F56 F57 F60 Engine Wiring Loom Harness 8681185

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8X2T-14301-AB

Jaguar XF X250 Negative Earth Battery Cable 2.7 Diesel 8X2T-14301-AB

€37.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 95B971035

Porsche Macan 95B Front Door Wiring Loom Harness Cable Driver Side 95B971035

€66.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. MU5T-14F180-LB

Ford Transit Custom Mk2 Display Screen Sat Nav MU5T-14F180-LB

€284.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A1725404009

Mercedes R172 Wiring Cable Harness Front Driver's Door Wiring Loom A1725404009

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A1669007809

Mercedes GLE W166 Rear Door Wiring Control Module Left N/S Unit ECU A1669007809

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7018B

Unbranded Car Play Multimedia Display 7" Screen Touchscreen 7018B

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. C1BA-12B684-EB

Ford Fiesta Mk7 Engine ECU Control 1.0 Petrol 100HP Automatic C1BA-12B684-EB

€70.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 1J0941385A

Audi TT 8N VW Golf Mk4 Relay Box Cover Housing Panel 1J0941385A

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. C2Z3687

Jaguar XF X250 Door Wiring Loom Rear Cable Harness Right O/S 8X2T1463BD

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5B913B8

BMW F20 F21 G30 G31 G01 Diesel Engine Starter Motor 5B913B8

€118.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9248214

BMW F01 F02 F03 F04 Front Bumper PDC Wiring Loom Harness Electric Wire 9248214

€37.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4G0971765E

Audi A7 4G8 3.0 TDI Adblue Tank Pump Wiring Loom Harness Loom 4G0971765E

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 1K0971250AD

Audi A3 Volkswagen Golf Battery Wire Cable Negative Earth Lead 1K0971250AD

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 03L906018GF-2

Volkswagen Scirocco Mk3 2.0 TDI 140HP Engine Module ECU Kit 03L906018GF Manual

€170.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 000937615B

Audi Q3 F3 Volkswagen Tiguan 5N Jetta Mk4 Fuse Relay Box 000937615B

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. BK3T-14335-BC

Ford Transit Mk8 Interior Reading Roof Light Wiring Harness Cable BK3T-14335-BC

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. CPLA-14F720-BK

Range Rover Evoque L538 DAB Radio Control Unit Module CPLA-14F720-BK

€99.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8W6945094H-1

Audi A5 S5 F5 LED Tail Light Lamp Wire Harness Cable Right O/S LED 8W6945094H

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A1728208710

Mercedes W176 W246 Roof Towing Alarm Sensor Switch Module A1728208710

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9304007

BMW G30 Seat Occupancy Sensor Mat Passenger Side Control Unit Module 9304007

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2129062003-2

Mercedes S212 Rear Tailgate Trunk Inner Lamp Cable Wire Right O/S A2129062003

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. N8A2-14N168-AA

Range Rover Velar L560 Power Distribution Box Wiring Loom Hybrid N8A2-14N168-AA

€108.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8638785

Mini Cooper F56 B38 Petrol 136HP Engine Control ECU DME 8638785 Manual

€227.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7CA971695G

VW Volkswagen Crafter SY Rear Door Wiring Loom Harness Left N/S 7CA971695G

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4F0905852D

Audi Q7 4L Steering Column Lock Mechanism Control Unit Module ECU 4F0905852D

€56.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6858700

BMW F20 F21 F30 F31 F32 ECU ICM Control Unit Air Module 6858700

€70.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. BK2T-10N725-BF

Ford Transit Mk8 Battery Box Lid Tray Cover Panel Trim BK2T-10N725-BF

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6R0937550A

Volkswagen Polo 6R Battery Fuse Box Distribution Terminal Unit 6R0937550A

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2789060600

Mercedes W166 R172 W205 C207 W212 C216 Engine Starter Motor 12V A2789060600

€51.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. EM5T-18B955-BB

Ford Transit Custom Dashboard Multimedia Display Screen Unit EM5T-18B955-BB

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. JT7112A650FE

Ford Transit Courier Engine Control ECU 75HP 1.5 Diesel XWCA Manual JT7112A650FE

€260.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2129017902

Mercedes W212 CLS C218 Air Module Control Unit Controller ECU A2129017902

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9657384680

Citroen C4 Peugeot 407 3008 Alarm Anti-Theft Siren Module Unit 9657384680

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. F1F1-12A650-RD

Ford Focus Mk3 Engine Control ECU 120 HP 1.5 Diesel Manual F1F1-12A650-RD Kit

€189.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7G9T-14B533-GF

Ford Mondeo Mk4 S-Max Door Control Module Front Passenger Side 7G9T-14B533-GF

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 1J0919506M

Volkswagen Skoda Seat Audi Radiator Cooling Fan Relay Control Unit 1J0919506M

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 06E971627T

Audi A6 C7 2.8 FSI CHVA Petrol Engine Wiring Loom Harness Cable 06E971627T

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8X23-17D547-BC

Jaguar XF X250 Windscreen Rain Light Sensor Module 8X23-17D547-BC

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. YC1T-14301

Ford Transit Mk6 Negative Battery Lead Cable Wire 2.0 F3FA YC1T-14301-CH

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A1765406708

Mercedes W176 Door Harness Loom Cable Wiring Rear Left Right N/O/S A1765406708

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8Y0962239

Audi A3 8Y Electric Boot Lid Tailgate Sensor Wiring Harness Cable 8Y0962239

€70.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8X23-17D547-BD

Jaguar XF X250 Rain Sensor Front Window Windscreen Module Unit 8X23-17D547-CA

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8X0971036BS

Audi A1 8X Door Card Wiring Harness Loom Cable Front Passenger Side 8X0971036BS

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. AH42-14A073-AB

Land Rover Range Rover L322 Engine Bay Fuse Box Module AH42-14A073-AB

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8V0035382B

Audi A3 8V Rear Center Low Bass Tweeter Speaker Subwoofer Unit 40W 8V0035382B

€51.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 896610KW60

Toyota Hilux Mk7 Engine Control Unit ECU 2.5 Diesel 144HP 4WD 89661-0KW60

€360.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 2830028010

Toyota Avensis T270 Corolla E12 Verso R2 Starter Denso Relay 12V 2830028010

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4H0959795D

Audi A8L 4H Rear Door Module Control Unit Left Right N/O/S 4H0959795D

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9289374-1

BMW X5 F15 X6 F16 Front Battery Fuse Box Positive Distribution Terminal 9289374

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 04L907309R-8

VW Passat B8 1.6 TDI 120HP Engine Control Unit ECU Kit SET 04L907309R Manual

€113.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. EOS-RADIO

Volkswagen VW Eos Android Car Radio System Touchscreen 7" Android Auto CarPlay

€142.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. FH22-14631-AAC

Land Rover Discovery 4 L319 Door Wire Harness Front Driver's Side FH22-14631-AAC

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8580053

Starter Cable BMW G30 G31 G32 Alternator Wiring Starter-Base B+ 8595355

€37.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. BK2T14A175CA

Ford Transit Custom MK8 Fuse Relay Box Control Unit Module BK2T-14A175-CA

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. GJ32-14D600-AD

Range Rover Evoque L538 Seat Module ECU Front Left Right N/O/S GJ32-14D600-AD

€37.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A1648201826

Mercedes W251 Parking Distance Control Module ECU PDC A1648201826

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2055407311

Mercedes C205 C63 AMG Fuse Box Housing Cover A2055407311

€127.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9244134

BMW 1 3 X1 Series E81 E87 E90 E91 E92 Ultra Sonic Module Alarm System 9244134

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7533282

BMW X3 Z4 E83 E85 E86 Fuse Box Cover Power Distribution Engine Bay 7533282

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. LS7T-14G229-BL

Ford Mondeo Mk5 Bluetooth Control Module Phone Transceiver ECU LS7T-14G229-BL

€189.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6G9T-14B192-CA

Ford Fiesta Transit Relay 4-Pin Black FoMoCo Unit 6G9T-14B192-CA

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8T0945094C-2

Audi A5 8T Rear Tail Light Wiring Loom Harness Cable Plug Right O/S 8T0945094C

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6781806

Mini R50 Radio Remote Alarm Key Fob Button 433 MHz Ignition Barrel Lock 6781806

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4H0959792F

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

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6957114

BMW 3 Series E92 Front Right O/S Driver Side Door Wire Wiring Loom 6957111

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A1649100075

Mercedes ML W164 Lumbar Module Front Seat Lumbar Control Unit A1649100075

€37.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6C0971065

Volkswagen VW Polo MK5 Parking Sensor Wiring Rear Bumper Loom Cable 6C0971065

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6905639

BMW E65 E66 Japan Mobile Phone Buffer Module ECU J-buf 6905639

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. F1BT-18C815-HH

Ford Transit Custom Focus MK3 Radio CD Player Head Unit F1BT-18C815-HH

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A0025427219

Mercedes W169 W245 W204 W212 Relay 4-Pin Black Hella A0025427219

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A1729058300-1

Mercedes SLK R172 Pedestrian Protection Impact Crash Sensor Module A1729058300

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6S61-13405-BF-1

Ford Fiesta Mk6 Tail Lamp Light Wiring Cable Rear Left N/S 3-Door 6S61-13405-B

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9281852

BMW F34 GT LED Module B-Pillar Various Lamps Right O/S Side 9281852

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. BK2T-18812-DC

Ford Transit Custom Roof Aerial Antenna Wiring Cable Harness BK2T-18812-DC

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 2810074270

Toyota Rav4 Mk2 Starter Motor Denso 12V 1.2KW 2.0 Petrol 4WD 1AZFE 2810074270

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 1H0911251

Audi Volkswagen Seat Skoda Relay 5 Pin 12V 10A 1H0911251

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8M5T-19H386-AB

Ford Kuga C394 Transit Connect Ignition Immobiliser Reader Control 6E5T-15607-BA

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 1880916

Ford Focus Mk3 Kuga Mk2 Voltage Stabilisation Module Unit ECU BV6T-14B526-AC

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 1K0971235J

Audi A3 Volkswagen Golf Battery Wire Cable Negative Earth Lead 1K0971235J

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6778809

Mini Cooper One R55 R56 R57 Xenon Headlight Level Sensor 6778809

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5Q0937084CP

Audi S3 8V Module BCM Body Control Unit Module ECU 5Q0937084CP

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2045403710

Mercedes W204 ABS Sensor Wiring Harness Front Left N/S A2045403710

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A0009052802

Mercedes W212 Negative Battery Terminal Cable Wire A0009052802

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6963025

BMW E64 Air Module Control Unit Centre Sensor ECU 6963025

€99.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 1K0907530J

Audi A3 8P Body Gateway Module ECU Control Unit 1K0907530J

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. a0045468040

Mercedes W204 W212 W221 Power Distributor Box Conectors Socket A0045468040

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9354756

Gateway Module BMW F11 Touring Central Gateway Body Control Module ZGW 9354756

€61.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8J0907274B

Audi TT 8J Tyre Pressure Control Module Unit 8J0907274B

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9462542

BMW F20 F21 F30 F31 Mini F56 Air Conditioning Module A/C Control Unit 9462542

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2139008330

Mercedes W177 W213 W247 Automatic Gearbox Control Unit Module ECU A2139008330

€94.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2059061805

Porsche Cayenne S 92a Ambient Lamp Door Wiring Harness Rear Left N/S A2059061805

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7626546

BMW F20 F21 F22 F30 F31 LCI Petol Starter Motor Engine 7626546

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7CA971696J

Volkswagen Crafter SY Rear Door Wiring Loom Harness Cable Right O/S 7CA971696J

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

...

Showing 4060-4158 of 22939 products