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

Mini Cooper One R56 Front Left Door Wiring Harness N/S 9142405

€23.95

Free delivery: Sep 14 – 15

If paid before 14:00

Part no. 9261110

BMW F20 F21 F30 F31 Fuse Box Power Distribution Control Unit Box Rear 9261110

€23.95

Free delivery: Sep 14 – 15

If paid before 14:00

Part no. 6850846

BMW F10 F11 F12 Parking Brake Unit Electric Control Module EMF 6850846

€23.95

Free delivery: Sep 14 – 15

If paid before 14:00

Part no. 7835131

BMW E60 E61 LCI M5 E63 M6 Fuel Injection System Adapter Lead 7835131

€23.95

Free delivery: Sep 14 – 15

If paid before 14:00

Part no. 9289007

BMW 5 F10 F11 On-board Central Information Display Screen Monitor 6,5" 9289007

€42.95

Free delivery: Sep 14 – 15

If paid before 14:00

Part no. A2038202185

Mercedes W203 Door Control Module Rear Left N/S A2038202185

€23.95

Free delivery: Sep 14 – 15

If paid before 14:00

Part no. A4479009808

Mercedes Vito W447 Fuse Box Relay Control Unit Electric Module SAM 4479009808

€237.95

Free delivery: Sep 14 – 15

If paid before 14:00

Part no. 6857262

Air Module BMW F01 F02 LCI F10 F11 F13 ICM SRS Control Unit ECU Bosch 6857262

€23.95

Free delivery: Sep 14 – 15

If paid before 14:00

Part no. 9150883

BMW 3 E93 Convertible Boot Trunk Lid Tailgate Wiring Loom Harness Cables 9150883

€66.95

Free delivery: Sep 14 – 15

If paid before 14:00

Part no. 1742690

BMW E60 E63 E87 E90 Relay Changer Make Contact Salmon Red 1742690

€23.95

Free delivery: Sep 14 – 15

If paid before 14:00

Part no. A6461502734-1

Mercedes W204 C220 CDI 170HP 646.811 Engine Unit ECU A6461502734 Automatic

€142.95

Free delivery: Sep 14 – 15

If paid before 14:00

Part no. 9229880

BMW E88 Cabrio ECU Body Control Module H3 Junction Box 9229880

€51.95

Free delivery: Sep 14 – 15

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: Sep 14 – 15

If paid before 14:00

Part no. 4H0907357A

Audi A7 4G8 Headlight Head Light Lamp Range Control Unit Module ECU 4H0907357A

€23.95

Free delivery: Sep 14 – 15

If paid before 14:00

Part no. 5A04A04

Mini F54 F55 F56 F60 Telematics Module Bluetooth Control Unit ECU 5A04A04

€42.95

Free delivery: Sep 14 – 15

If paid before 14:00

Part no. A2219009903

Mercedes-Benz S-Class W221 Rear Door N/O/S Control Unit Module A2219009903

€28.95

Free delivery: Sep 14 – 15

If paid before 14:00

Part no. 9866978

BMW F20 F21 F30 F31 F32 Body Control Unit Module REM 9866978

€23.95

Free delivery: Sep 14 – 15

If paid before 14:00

Part no. A2125400035

Earth Ground Cable Mercedes W204 W207 W212 Battery Starter Wiring A2125400035

€23.95

Free delivery: Sep 14 – 15

If paid before 14:00

Part no. 7810860

BMW E90 E91 E92 LCI N47N Engine Alternator Starter Cable B 7810860

€23.95

Free delivery: Sep 14 – 15

If paid before 14:00

Part no. 8573116

BMW 5 Series F10 F11 LCI B47 Cable Alternator Starter 8573116

€23.95

Free delivery: Sep 14 – 15

If paid before 14:00

Part no. AV6N-15K607-AH

Ford Focus Mk3 Motion Alarm Sensor Module Unit AV6N-15K607-AH

€23.95

Free delivery: Sep 14 – 15

If paid before 14:00

Part no. A2389053301

Tailgate Trunk Mercedes X117 X156 W205 Boot Rear Control Module Unit A2389053301

€37.95

Free delivery: Sep 14 – 15

If paid before 14:00

Part no. 6906609

Fuse Box Control BMW E87 E90 E91 E92 E93 Front Power Distribution 6906609

€28.95

Free delivery: Sep 14 – 15

If paid before 14:00

Part no. 8519663-10

Mini Cooper SD R55 R56 LCI R60 N47N 143HP Diesel Engine ECU DDE 8519663 Manual

€47.95

Free delivery: Sep 14 – 15

If paid before 14:00

Part no. A1779061002

Fuse Box Mercedes W177 Power Distribution Junction Relay Unit A1779061002

€42.95

Free delivery: Sep 14 – 15

If paid before 14:00

Part no. 8J0035223D

Audi TT 8J Audio Amplifier Radio Sound BOSE Unit 8J0035223D

€569.95

Free delivery: Sep 14 – 15

If paid before 14:00

Part no. 9347878

Dashboard Monitor BMW X5 F15 Onboard Central Display Screen 10,25" 9347878

€246.95

Free delivery: Sep 14 – 15

If paid before 14:00

Part no. 7805349-1

BMW X3 Series E83 LCI M47N2 2.0d 150HP ECU Kit DDE + EWS4 + Key 7805349 Manual

€313.95

Free delivery: Sep 14 – 15

If paid before 14:00

Part no. 9367376

Control Unit BMW F01 F02 F07 F10 F11 CAS4 Key Reading Module 9367376

€66.95

Free delivery: Sep 14 – 15

If paid before 14:00

Part no. 1K0035186AA

VW Volkswagen Golf Mk5 Radio Control Head Unit CD Player 1K0035186AA

€23.95

Free delivery: Sep 14 – 15

If paid before 14:00

Part no. 7792130

BMW Mini Cooper One R50 R52 R53 R55 R56 R57 Earth Ground Cable 7792130

€23.95

Free delivery: Sep 14 – 15

If paid before 14:00

Part no. 6906914

BMW X5 E53 Battery Cable Negative Wire 6919976

€23.95

Free delivery: Sep 14 – 15

If paid before 14:00

Part no. 5Q4959593E

Seat Leon Mk3 Door Module Control Unit Front Driver's Side Door 5Q4959593E

€23.95

Free delivery: Sep 14 – 15

If paid before 14:00

Part no. 9374507

BMW F23 REM Rear Electronic Module Fuse Box Control Unit V2 9374507

€23.95

Free delivery: Sep 14 – 15

If paid before 14:00

Part no. 9162986

BMW E81 E87 E87N E90 LCI E91 E92 Air Conditioning Control 9162986

€23.95

Free delivery: Sep 14 – 15

If paid before 14:00

Part no. BH42-14D620-AA

Land Rover 4 L319 Rear Door Control Unit Module Left Right N/O/S BH42-14D620-AA

€23.95

Free delivery: Sep 14 – 15

If paid before 14:00

Part no. 9232896

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

€113.95

Free delivery: Sep 14 – 15

If paid before 14:00

Part no. 9337879

BMW 1 3 4 Series F20 F21 F30 F31 F34 Power Distribution Fuse Box Front 9337879

€23.95

Free delivery: Sep 14 – 15

If paid before 14:00

Part no. 9139868-1

BMW X3 E83 LCI X5 E70 LCI PDC Parking Ultrasonic Sensor Black 9139868

€23.95

Free delivery: Sep 14 – 15

If paid before 14:00

Part no. 7541335-5

BMW Z4 E85 2.2i M54 170HP Engine Control ECU Kit DME 7541335 EWS3 + Key Manual

€237.95

Free delivery: Sep 14 – 15

If paid before 14:00

Part no. 6818814

Airbag Module Mini F55 F56 F60 BMW X1 F48 F45 ECU Control Unit Air Bag 6818814

€89.95

Free delivery: Sep 14 – 15

If paid before 14:00

Part no. A1715450032

Mercedes SLK R171 PDC Parking Distance Control Unit Module Sensor A1715450032

€23.95

Free delivery: Sep 14 – 15

If paid before 14:00

Part no. 8363668

BMW X3 X5 Series E53 E83 Steering Column Turn Indicator Switch Stalk 8363668

€23.95

Free delivery: Sep 14 – 15

If paid before 14:00

Part no. 6838609

Antenna Amplifier BMW F40 Aeral Diversity Control Unit FM DAB Live Dash 6838609

€23.95

Free delivery: Sep 14 – 15

If paid before 14:00

Part no. 8385164-2

BMW 7 Series 2 E65 E66 Battery B Engine Compartment Terminal Point 8385164

€23.95

Free delivery: Sep 14 – 15

If paid before 14:00

Part no. 9279823

BMW F30 REM Rear Electronic Module Fuse Box Control 9279823

€23.95

Free delivery: Sep 14 – 15

If paid before 14:00

Part no. 8482940

BMW F30 LCI G11 G30 Battery Cell Supervision Circuit Module Unit 8667593

€32.95

Free delivery: Sep 14 – 15

If paid before 14:00

Part no. 8K0959663B

Audi A5 8T Voltage Converter Stabilizer Control Module Unit ECU 8K0959663B

€23.95

Free delivery: Sep 14 – 15

If paid before 14:00

Part no. 10723AF

Ford Transit Connect Battery Box Tray Housing Holder Bracket 10723AF

€23.95

Free delivery: Sep 14 – 15

If paid before 14:00

Part no. 8V0971104

Audi A3 S3 8V Sportback Wiring Harness PDC Parking Sensor Rear Bumper 8V0971104

€23.95

Free delivery: Sep 14 – 15

If paid before 14:00

Part no. A9067600404

Bowden Cable Mercedes W906 Rear Sliding Door Opener Cable Wire A9067600404

€23.95

Free delivery: Sep 14 – 15

If paid before 14:00

Part no. 6868253

BMW F20 F21 F30 F31 ECU ICM Control Unit Air Module ECU 6868253

€23.95

Free delivery: Sep 14 – 15

If paid before 14:00

Part no. 9194824

BMW Z4 E89 Convertible Roadster Air Module ECU Control Unit 9194824

€94.95

Free delivery: Sep 14 – 15

If paid before 14:00

Part no. 6910542

BMW 3 X3 Series E46 E83 Battery Cable Plus Pole Power Positive 6910542

€23.95

Free delivery: Sep 14 – 15

If paid before 14:00

Part no. A1669004302

Mercedes W176 W246 Front Door Module Control Unit Module Right O/S A1669004302

€23.95

Free delivery: Sep 14 – 15

If paid before 14:00

Part no. 5C0035680C

Volkswagen Scirocco Tiguan 5N Display Screen Multimedia Nav Unit 5C0035680C

€560.95

Free delivery: Sep 14 – 15

If paid before 14:00

Part no. 8631668

BMW F20 F21 F30 LCI M140i 340i Wiring Harness Injection Valve Ignition 8631668

€70.95

Free delivery: Sep 14 – 15

If paid before 14:00

Part no. BV6T-14B526-BB

Ford Focus Mk3 Voltage Stabilisation Control Module Bosch ECU BV6T-14B526-BB

€23.95

Free delivery: Sep 14 – 15

If paid before 14:00

Part no. 7M0951253C-2

VW Touareg 7L Audi Q7 4L Relay Black Control Unit 5 Pin 404 12V Set 7M0951253C

€23.95

Free delivery: Sep 14 – 15

If paid before 14:00

Part no. 5Q0955547A

VW Golf VII Skoda Octavia Fabia III Front Windscreen Rain Sensor 5Q0955547A

€23.95

Free delivery: Sep 14 – 15

If paid before 14:00

Part no. 6840399

Head Unit BMW F20 F21 F22 F30 F31 Radio CD Navigation Business GPS 6840399

€227.95

Free delivery: Sep 14 – 15

If paid before 14:00

Part no. 9207913-1

BMW F20 F21 F22 F30 F31 F32 F33 F36 Fan Motor Relay 9207913

€23.95

Free delivery: Sep 14 – 15

If paid before 14:00

Part no. 9137800

Mini Cooper One R55 R56 R57 Passenger's Door Harness Wiring Cables N/S 9137800

€23.95

Free delivery: Sep 14 – 15

If paid before 14:00

Part no. 6942990

BMW 5 6 Series E60 E61 E63 E64 Actuator Air Distribution Flap Matrix Heater

€23.95

Free delivery: Sep 14 – 15

If paid before 14:00

Part no. 3448250

BMW X3 E83 Front Door Window Lifter Regulator Motor Right O/S 3448250

€37.95

Free delivery: Sep 14 – 15

If paid before 14:00

Part no. 9244422

BMW X5 E70 LCI Front Bumper PDC Loom Cables Wiring Set 9244422

€37.95

Free delivery: Sep 14 – 15

If paid before 14:00

Part no. A0009003310

Mercedes W205 W213 Fuel Pump Module Control Unit ECU A0009003310

€23.95

Free delivery: Sep 14 – 15

If paid before 14:00

Part no. 6976156

BMW E60 E61 E63 Passenger Side Door Air Control Module 6976156

€23.95

Free delivery: Sep 14 – 15

If paid before 14:00

Part no. 9286863

BMW X5 Z4 Series E70 E89 Active Sound Harman Becker Amplifier Design 9286863

€42.95

Free delivery: Sep 14 – 15

If paid before 14:00

Part no. A1698201585

Mercedes W245 ECU Control Unit Sensor Air Module A1698201585

€23.95

Free delivery: Sep 14 – 15

If paid before 14:00

Part no. 02M911024S

VW Golf MK7 5G Audi A3 8V Engine Starter Motor Valeo 2.0 TDI Diesel 02M911024S

€28.95

Free delivery: Sep 14 – 15

If paid before 14:00

Part no. 7524109

BMW Z4 E85 Petrol M54 Wiring Loom Harness Engine Gearbox Manual 7524109

€42.95

Free delivery: Sep 14 – 15

If paid before 14:00

Part no. 9315096

BMW X3 F25 Rear Bumper PDC Wiring Loom Parking Sensor Cable Harness 9315096

€56.95

Free delivery: Sep 14 – 15

If paid before 14:00

Part no. A1645403132

Mercedes-Benz M-Class ML W164 Wiring Loom Cable Harness Fuel Tank A1645403132

€32.95

Free delivery: Sep 14 – 15

If paid before 14:00

Part no. 6928050

BMW 7 Series E65 E66 E67 Battery Cable Wire Earth Ground Minus Negative L=260MM

€23.95

Free delivery: Sep 14 – 15

If paid before 14:00

Part no. 7938196

PDC Module BMW F45 X3 F25 Mini F55 F56 Parking Distance Sensor Unit 7938196

€23.95

Free delivery: Sep 14 – 15

If paid before 14:00

Part no. 9276009

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

€180.95

Free delivery: Sep 14 – 15

If paid before 14:00

Part no. 7615305

Engine Wiring BMW F20 F21 F30 F31 N13 Loom Module Harness Cable 7615305

€23.95

Free delivery: Sep 14 – 15

If paid before 14:00

Part no. 9197161

BMW 1 Series E82 ECU Footwell Light Module Control Unit PL2 FRMFA 9197161

€47.95

Free delivery: Sep 14 – 15

If paid before 14:00

Part no. A1638201675

Mercedes-Benz M-Class ML W163 Roof Antenna A1638201675

€28.95

Free delivery: Sep 14 – 15

If paid before 14:00

Part no. 8K0971104AF

Audi A5 8T 5 Door Rear Bumper PDC Parking Sensor Wiring Harness Loom 8K0971104AF

€23.95

Free delivery: Sep 14 – 15

If paid before 14:00

Part no. 8512047

BMW E90 E91 LCI N47N 320d ed ECU KIT DDE CAS 3 Key 8512047 Manual

€151.95

Free delivery: Sep 14 – 15

If paid before 14:00

Part no. 9285504-1

BMW X5 F15 X6 F16 B + Battery Power Distributor 9285504

€23.95

Free delivery: Sep 14 – 15

If paid before 14:00

Part no. 6917544

Mini Cooper R50 R53 Rear PDC Ultrasonic Parking Sensor Pepper White - 850

€23.95

Free delivery: Sep 14 – 15

If paid before 14:00

Part no. A2055404106

Brake Harness Mercedes W205 Rear Left Brake Pad Wear Wire Wiring A2055404106

€23.95

Free delivery: Sep 14 – 15

If paid before 14:00

Part no. 6953424-2

BMW Z4 Series 2 E85 E86 Positive Battery Cable Plus Pole Lead 6953424

€37.95

Free delivery: Sep 14 – 15

If paid before 14:00

Part no. A2218207689

Mercedes W221 Sound Audio Amplifier Control Unit Module A2218207689

€360.95

Free delivery: Sep 14 – 15

If paid before 14:00

Part no. 9390396

Audio Amplifier BMW F20 F21 F22 Harman Kardon Active Sound Design Unit 9390396

€94.95

Free delivery: Sep 14 – 15

If paid before 14:00

Part no. 9183233

BMW E60 E61 LCI Centre Console Switch Cluster Control Unit ECU Module 9183233

€23.95

Free delivery: Sep 14 – 15

If paid before 14:00

Part no. A2711501920

Engine Wiring Mercedes W204 C207 W212 M271 Harness Loom Cable A2711501920

€132.95

Free delivery: Sep 14 – 15

If paid before 14:00

Part no. 9194064

Board Monitor BMW X5 X6 E70 E71 Sat Nav System Screen 8,8" 9194064

€99.95

Free delivery: Sep 14 – 15

If paid before 14:00

Part no. 9296780

BMW F20 F21 F30 F31 Control Unit Air Conditioning Module 9296780

€23.95

Free delivery: Sep 14 – 15

If paid before 14:00

Part no. LR007521

Land Rover Discovery 4 L319 Glow Plug Wire Wiring Cable Left N/S 4R8Q-12A378-AF

€23.95

Free delivery: Sep 14 – 15

If paid before 14:00

Part no. 1K0971228N

Audi A3 VW Golf Caddy Battery Lead Positive Cable Plus Pole Wiring 1K0971228N

€23.95

Free delivery: Sep 14 – 15

If paid before 14:00

Part no. 8K0907063AJ

Audi A5 8T Body Control Comfort Unit Module BCM Unit ECU 8K0907063AJ

€61.95

Free delivery: Sep 14 – 15

If paid before 14:00

Part no. A9067601204

Mercedes Sprinter W906 Front Left Door N/S Handle Bowden Pull Cable A9067601204

€23.95

Free delivery: Sep 14 – 15

If paid before 14:00

Part no. A1698206726

Mercedes-Benz W245 ECU Control Unit Sensor Module Airbag A1698206726

€23.95

Free delivery: Sep 14 – 15

If paid before 14:00

Part no. 9451484

Trunk Lid Module BMW F40 F90 M5 G20 G30 Power Tailgate Control Unit 9451484

€23.95

Free delivery: Sep 14 – 15

If paid before 14:00

Part no. 09K927750K

VW Volkswagen Transporter T5 ECU 2.5 Diesel Auto Gearbox Control Unit 09K927750K

€23.95

Free delivery: Sep 14 – 15

If paid before 14:00

...

Showing 1288-1386 of 20597 products