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

MEKEDE BMW E90 E92 Head Unit Radio Audio Player Android Display Screen 9" 7M150S

€142.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4G5971035CA

Audi S6 C7 Door Wire Wiring Harness Loom Cable Front Driver Side 4G5971035CA

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9265835

Fuse Box Holder BMW X5 F15 X6 F16 Control Unit Module Bracket Carrier 9265835

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 83A947356K

Audi Q3 F3 LED Rear Door LED Lighting Module Control Unit Right O/S 83A947356K

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. FPLA-14386-BD

Range Rover Evoque L538 Engine Cooling Fan Harness Wire Cable FPLA-14386-BD

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8585727

Wiring BMW F21 F30 F34 F36 Diesel N47N Engine Gearbox Module Harness 8585727

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7P0971235B

Porsche Cayenne High Voltage Wiring Harness Earth Line 7P0971235B

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2049009907-2

Mercedes W204 Navigation Radio Player Head Unit Computer A2049009907

€227.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2059001513

Mercedes W205 S205 C205 Air Conditioning Control Module unit ECU A2059001513

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8V4971693B

Audi A3 RS3 8V Rear Door Wiring Loom Harness Left Right N/O/S 8V4971693B

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9797876

BMW X1 U11 Battery Trim Cover Mount Bracket 9797876

€42.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 1J0937550AB

Audi A3 8L VW Golf Mk4 Battery Fuse Box Terminal Cover Panel 1J0937550AB

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A1679008309

Mercedes W177 W247 Telematics Module Communication Control Unit A1679008309

€42.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 1K0907655D

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

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2095450901

Mercedes CLK W209 Convertible Fuse Box Rear SAM Module Control Unit A2095450901

€151.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6C1T-14300-BB

Ford Transit Mk7 Battery Positive Lead Cable Harness Wire 6C1T-14300-BB

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4KE959107

Audi Q5 FY A5 F5 Q7 4M Tailgate Bootlid Module Control Unit 4KE959107

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. C1BT-14B321-CE

Ford Fiesta Mk7 Air Module Control Unit ECU C1BT-14B321-CE

€51.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8W0947355M

Audi A4 B9 LED Module Light Unit Wiring Harness Right Rear O/S 8W0947355M

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2075453840

Mercedes-Benz E W207 Cabrio A207 Exhaust BlueTec Control Unit Module Bracket

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4M0959792M

Audi S5 F5 Door Control Module Unit Front Passenger Side 4M0959792M

€47.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 735783119

Fiat Ducato Peugeot Boxer RadioPlayer Multimedia Display Screen 735783119

€474.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2465400340-2

Mercedes W176 Fuse Relay Box Control Unit A2465400340 A2465400140

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 1K0937517-1

Audi A3 RS3 8V Potential Power Distribution Junction Box Jump Point 1K0937517

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7311541

BMW 2 Series F22 F87 M2 Rear Third Stoplamp Stop Lamp Brake Light White 7311541

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4E0909131K

Audi A8 D3 Kessy Keyless Module Control Unit ECU 3.0 Diesel ASB 4E0909131K

€118.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6S6T-971113-AB

Ford Fiesta Mk5 Anti Theft Alarm Wiring Harness Loom Cable 6S6T-971113-AB

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. AH32-18B008-AD

Range Rover Sport L320 Suspension Control Unit ECU Module AH32-18B008-AD

€113.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. LR116048

Land Rover Discovery Sport L550 Engine Starter Motor Unit 2.0 P200 K8D2-11001-AC

€51.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. CX23-18C847-AA

Jaguar XF Rear Aerial Antenna Amplifier Booster Module Unit CX23-18C847-AA

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A1679001520

Mercedes C118 W167 W177 W247 Ignition Control Module Unit ECU A1679001520

€80.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4G8959793A

AUDI A7 4G8 Door Control Module Front Left N/S Driver Side 4G8959793A

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. LJE2610BC

Jaguar XK8 X100 Remote Key Transponder Blank 433MHz Security LJE2610BC

€89.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5Q0971250AB

Audi A3 S3 8V Negative Battery Terminal Earth Cable Lead Wiring 5Q0971250AB

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8K0907064JF

Audi A4 B8 A5 8T Q5 8R Body Control Module BCM Unit ECU 8K0907064JF

€94.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2219002802

Mercedes W221 Radio Control Operating Unit Card Reader CD Player A2219002802

€360.95

Free delivery: Nov 10 – 13

If paid before 14:00

Part no. A2078200075

Antenna Mercedes W212 Keyless Go Comfort Access Antenna Module Unit A2078200075

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9167202

BMW E60 E61 LCI E63 E64 Body Gateway Module ECU Control Unit 9167202

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 95910-1H050

Kia Ceed Hyundai Air Module Safety Control Unit Ver. 3.3 ECU 95910-1H050

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8R0971036E

Audi Q5 8R Front Door Wiring Harness Cable Loom Passenger Side 8R0971036E

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. AH42-15K603-AA-1

Range Rover Sport L494 Aerial Antenna Module Keyless Unit X2 AH42-15K603-AA

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2465450840

Mercedes GLA 250 X156 Battery Holder Bracket Support Batteries Box A2465450840

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2205401124-1

Fuse Box Unit Mercedes CL S C215 W220 1 Front Right O/S ECU A2205401124

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9496820

Crash Sensor BMW G20 G26 G80 Front Door Left Right N/O/S Air Impact Unit 9496820

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7P0971225C

VW Touareg 7P Porsche Cayenne 92A Negative Battery Cable Wiring Loom 7P0971225C

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2208300272

Mercedes W203 C209 W211 W220 Light Solar Sun Sensor Module A2208300272

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5Q0907361C-1

Seat Ibiza Mk4 Audi A3 8V TT FV Fuse Box Control Module Relay Box 5Q0907361C

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2055403335

Mercedes W205 C253 X253 Footwell Light Wiring Cable Front Left N/S A2055403335

€66.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8U0971693D

Audi RSQ3 8U Door Wiring Harness Loom Rear Left Right N/O/S 8U0971693D

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A1775401758

Mercedes W118 W177 W247 Starter Alternator Wiring Loom Harness Cable A1775401758

€80.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8654463

Mini One F56 Petrol B38 102HP Engine Control Unit Module ECU DME 8654463 Manual

€151.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7H42-11001-AC

Land Rover Range Rover L322 Starter Motor 3.6 4.4 TD V8 Diesel 7H42-11001-AC

€42.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 861600D180

Toyota Avensis T270 Yaris P9 Rear Door Speaker Left Right N/O/S 861600D180

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8T0971365B

Audi A4 S4 B8 Front Seat Wire Harness Cable Loom 8T0971365B

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8986020020

Toyota Celica T23 Mk7 Side Crash Sensor Unit Front Right O/S 8986020020

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8W0959595E

Audi A4 B9 Rear Door Control Module ECU Left Right N/O/S 8W0959595E

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 91127929

BMW E90 Mekede Head Unit Android Radio Multimedia Infotainment 10" Screen 9M95S

€142.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6C0971349

Audi S1 8X Battery Cable Loom Wiring Harness 2.0 TFSI CWZA Quattro 6C0971349

€37.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8470176-8

BMW F30 320d ed B47 Engine Control Unit ECU 2.0 Diesel 163HP Manual 8470176 Set

€151.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8W0035454A

Audi A4 B9 Front Centre Dashboard Tweeter Speaker 8W0035454A

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5E3827566-1

Audi A3 S3 8Y Tailgate Rear View Camera Boot Switch Trunk Handle Grab 5E3827566

€99.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8944160010

Toyota Hilux RAV4 Yaw Rate ESP Deceleration Sensor 8944160010

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2219005300

Mercedes W221 Parktronic System Control Unit Module A2219005300

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8S0035020B

Audi TT 8S FV Audio Multimedia Radio CD Player MIB2 Head Unit 8S0035020B

€569.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8574352-3

BMW X1 E84 20d 20dX Diesel N47N Engine Control Unit ECU Kit DDE 8574352 CAS3 Key

€142.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A1669001410

Mercedes ML W166 SAM Control Signal Acquisition Module ECU A1669001410

€222.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. H1BT-10C679-AC

Ford Fiesta St Mk8 Puma Negative Battery Terminal 2017-2023 H1BT-10C679-AC

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2139068701-1

Mercedes W205 W213 Fuse Box Rear SAM Module Electrical Unit A2139068701

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9186571

BMW E90 LCI Wiring Loom Front Door Cable Wiring Harness Driver's Side 9186571

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A1698204515

Media Plug Mercedes W169 W245 Multimedia Connection Cable Wire A1698204515

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6821205

Battery Wire Mini Cooper F55 F56 F57 IBS Negative Battery Lead Cable 6821205

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. J8A2-16C826-AB

Land Range Rover Velar L560 Bonnet Gas Strut Left Right N/O/S J8A2-16C826-AB

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5WA907007K

Volkswagen Golf Cd1 Mk8 Climate Control Module ECU 2.0 Diesel 5WA907007K

€47.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7790368

Mini Cooper One D R50 W17 Diesel Alternator Cable Starter Base B 7790368

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2124401251

Door Cable Mercedes W212 Wiring Loom Front Right O/S Driver Side A2124401251

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9377149

BMW 1 3 Series F20 F21 F30 F31 Telematic Control Unit Module 9377149

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9296981

Battery Cable Mini F55 F56 BMW X2 F39 Diesel B37 Positive Cable Wiring 9296981

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 3AA971689

VW Volkswagen Passat B7 Door Wiring Adapter Loom Rear Left Right N/O/S 3AA971689

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8W1907064CM

Audi Q7 4M Body Control Module BCM Comfort Control Unit Power Supply 8W1907064CM

€189.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. YC1A14B321AG

Ford Transit Mk6 Air Module Control Unit ECU Module YC1A14B321AG

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7L5907160

Porsche Cayenne 9PA Relay Module 6 Pin 462 7L5907160

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5C5971104F

Volkswagen New Beetle Mk3 Rear Parking Wiring Loom Harness Cable 5C5971104F

€51.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9396830

BMW F06 F12 F13 E63 Antenna Module Multi band Antenna GPS TEL Left N/S 9396830

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. FK72-13A444-ABC

Land Rover Discovery Sport L550 Rear Seat Folding Wiring Cable FK72-13A444-ABC

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8576333-5

BMW F20 F30 120d 320d N47N 163HP Engine Control Unit ECU DDE 8576333 Manual

€56.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8509036-10

BMW E92 Engine Control Unit ECU Kit 3.0 Diesel M57N2 285HP Automatic 8509036

€450.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5K0971104C

Volkswagen Golf GTI Mk7 Rear Bumper PDC Sensors Wiring Loom Harness 5K0971104C

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. LR089507

Range Rover L405 Front Bumper Wiring Harness Loom Cable HK52-14369-HA

€51.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. XH42-18C847-BB

Range Rover L322 Aerial Antenna Amplifier Control Unit Module XH42-18C847-BB

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 0638000920

Toyota Verso Mk2 Auris Mk1 Heater Flap Motor Actuator Control Valve 0638000920

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4M0035454B

Audi A4 B9 Dashboard Loudspeakers Tweeter Speaker Front 4M0035454B

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2059051106

Mercedes W205 Antenna Aerial Amplifier Module Receiver AMP Unit A2059051106

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. GPLA-14F441-LC

Range Rover L405 Suspension Control Unit Module GPLA-14F441-LC

€75.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9341081

BMW F30 F31 F34 Radio Head Unit Satelite Navigation DAB CD Player 9341081

€189.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2055408012

Mercedes W205 Battery Lead Negative Wire Earth Cable A2055408012

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2229003413

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

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4N0906093E

Audi Q3 F3 A8 4N 2.5 TFSI Petrol Control Fuel Pump Tank Pump Unit 4N0906093E

€47.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7E0945095T-2

Volkswagen Transporter T6 Rear Lamp Side Tail Light Wiring Left N/S 7E0945095T

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7H2Q-12A650-AF

Land Rover Discovery 3 L319 Engine ECU Unit 2.7 TDV6 190HP 7H2Q-12A650-AF Manual

€42.95

Free delivery: Nov 12 – 13

If paid before 14:00

...

Showing 2971-3069 of 22939 products