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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BMW X5 E70 X6 E71 Front Crash Impact Sensor Module 9152262

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8387541

BMW X5 E39 E53 Fuse Box Housing 8 Fold Voltage Regulator Boot 8387541

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8379941-1

BMW X5 Series E53 Interior Roof Alarm Sensor Ultra Sonic Module 8379941

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9224673

BMW E81 E87 E90 E91 Hands-free Electronics Charging MULF2 9224673

€42.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 5H0959542K-1

Volkswagen Golf Mk8 Multifunction Steering Wheel Control Module 5H0959542K

€28.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9389069

BMW F20 F21 F30 F31 F32 X5 F15 X6 F16 Power Distribution Fuse Box Front 9389069

€28.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 02T911024N

Seat Ibiza 6J VW Volkswagen 6R Starter Motor 1.2 1.6 Petrol Engine 02T911024N

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8R0945094-2

Audi Q5 8R Rear Tail Light Lamp Wiring Harness Cable Plug Right O/S 8R0945094

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 1K3959857B

Volkswagen Polo 6R Golf Mk6 3-Door Window Lifter Switch Driver's Side 1K3959857A

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 4H0971727B

Audi A8 4H D4 Quattro Fuel Tank Pump Wiring Loom Harness 4H0971727B

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 5NA980611A

Volkswagen Golf 8 CD1 Wireless Phone Charging Center Console Module 5NA980611A

€37.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6M21-14B684-BA

Ford Mondeo Mk4 Galaxy Mk2 Front Seat Wiring Loom Cable 6M21-14B684-BA

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. FT1T-15K857-AE

Ford Transit Connect Mk2 Centre Console Wiring Loom Harness Cable FT1T-15K857-AE

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8E0937548

Audi RS4 B7 8E 8H Battery Main Fuse Box Power Housing Cover Bracket 8E0937548

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 5H0035411

Volkswagen Golf Mk8 A-Pillar Speaker Tweeter Sound Left Right N/O/S 5H0035411

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 03L906018LA

Audi A6 C7 2.0 TDI CGLC 177HP Engine Control Unit ECU 03L906018LA Manual

€47.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A2049005205

Mercedes W204 Dashboard Stereo Display Screen Sat Nav Multimedia A2049005205

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 99164631302

Porsche 981 Steering Column Microphone Right O/S 99164631302

€66.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A4159066000

Starter Motor Mercedes W415 Citan OM607 OM608 Diesel Engine Starter 233006508R

€37.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8507899

BMW F31 N47N 320d Engine Wiring Harness Module Diesel 8507899 8507896

€66.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8387568-1

BMW E65 Battery B Engine Compartment Terminal Point Cover 8387568

€23.95

Free delivery: Aug 5 – 10

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: Aug 5 – 10

If paid before 14:00

Part no. A2059001611

Mercedes W205 Door Module Front Right O/S Control Unit ECU A2059001611

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6887753

BMW F20 F21 F22 F30 F31 F32 ICM Control Unit Module ECU 6868599

€32.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7583332-7

BMW E60 E61 LCI 523i N53 190HP Engine Control Module DME Kit 7583332 Automatic

€450.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7329789-1

BMW 2 F46 Gran Tourer Lamp Tillight Plug Socket Wiring Cable Left N/S 7329789

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A2218707293

Mercedes W221 Seat Control Module Unit Ecu Rear A2218707293

€32.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9894330

BMW G20 G22 G23 G26 G42 G87 Negative Battery Earth Cable Wiring 9894330

€32.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. EH22-01445-AB

Land Rover Discovery 4 L319 Battery Pad Cover Panel EH22-01445-AB

€32.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7H6970187FT

Volkswagen Transporter T5 Fuse Box Control Module Unit 7H6970187FT

€37.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6821970

Mini Cooper One F54 F55 F56 F60 ECU Body Domain Controller BDC Module 6821970

€237.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8X0959793B

Audi A1 8X Door Module Control Unit Controller Front Driver's Side 8X0959793B

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 1734633

Ford Fiesta MK7 1.6 TDCI Starter Motor Engine Diesel 8V2111000AD

€32.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 1S0919275D-TOG

Audi Q3 8U PDC Parking Distance Control Sensor Tornado Grey-X7P 1S0919275D

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A1775406401

Mercedes W177 Door Wiring Loom Harness Cable Front Right O/S A1775406401

€37.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A2535402128

Mercedes X253 Starter Motor Wiring Harness Cable A2535402128

€66.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7843526

BMW E90 E92 E93 M3 S65 Engine Starter Motor 7843526

€94.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9224866

BMW 1 3 4 Series F20 F21 F30 F31 F32 Power Distribution Fuse Box Front 9224879

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9153806

BMW F01 F02 Rear Heater Blower Motor Resistor 9153806

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. KK2T-18812-YB

Ford Transit MK8 Wire Loom Harness Lead Cable KK2T-18812-YB

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A2710104245

Mercedes W211 Engine Control Unit ECU 184HP Petrol Automatic Gearbox A2710104245

€142.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8727987

BMW F44 Gran Coupe Door Wiring Harness Rear Door Left Right N/O/S 8727987

€47.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8617709

BMW Mini Cooper F55 F56 Wiring Harness Motor Sensorsystem Module 8617709

€113.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8P0035195M

Audi A3 8P CD Radio Stereo Head Unit Symphony 8P0035195M

€113.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7H0971692AH

VW Transporter T5 Rear Sliding Side Door Wiring Loom Harness Cable 7H0971692AH

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7951069

KaFAS Camera BMW F45 Front Camera Control Unit Module 9384688

€28.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8P0051435FQ

Audi A5 8T Interior Phone Holder Tray Connection Station Unit 8P0051435FQ

€113.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8578945

BMW F20 F30 116d 316d N47N 116HP ECU Engine Contol Unit DDE 8578945 Automatic

€47.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 2K0972175A

Volkswagen Caddy Mk3 Rear Wiper Motor Wiring Harness Cable 2K0972175A

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A0005459712

Mercedes W447 OM654 Power Distributor Box Conectors Socket A0005459712

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 99164630702

Porsche 981 Steering Column Microphone Left N/S 99164630702

€61.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8K0907063DG

Audi Q5 8R Body Control Comfort Unit Module Unit 8K0907063DG

€51.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8632554

Fuse Box Cover BMW X3 G01 X4 G02 Trim Panel Lid Housing Bracket 8632554

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6823590

BMW F10 Footwell Light Control Unit Module ECU FRM III 6823590

€89.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 4B0919471A

Audi TT 8N Headlight Module Ballast Relay Control Unit 4B0919471A

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8W0054635A

Audi A3 8V PDC Parking Sensor Control Unit Module Vodafone Automotive 8W0054635A

€56.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9282420

BMW 1 3 5 Series F10 F20 F30 Reversing Camera Rear View Control Unit 9282420

€94.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 83A971104S

Audi Q3 F3 Rear PDC Parking Sensors Wiring Loom Harness 83A971104S

€70.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 4K5971687BG

Audi A6 C8 Door Wiring Wire Cable Harness Loom Rear Left Right N/O/S 4K5971687BG

€61.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. BJ32-14630-AHD

Range Rover Evoque L538 Front Door Wiring Harness Loom Left N/S BJ32-14630-AHD

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. DH22-14B192-AA

Land Rover Discovery Sport L550 Relay 4-Pin 20A 12V Unit Black DH22-14B192-AA

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A2118705526

Mercedes W219 Motorola Telephone Control Module DC UHI MOST A2118705526

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A2139002210

Mercedes-Benz W176 W205 W207 W213 Bluetooth Control Unit Module ECU A2139002210

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9229899

BMW F01 F01N F02 F10 Tow Bar Trailer Towing Control Module Unit AHM 4 9229899

€142.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A1645400762

Mercedes W164 W211 C219 Tyre Pressure Monitor Control Unit Module A1645400762

€28.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8T0971030AE

Audi S5 8T Door Wiring Wire Loom Cable Harness Front Passenger Side 8T0971030AE

€51.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A4479058203

Mercedes Vito W447 Radio Remote Control Alarm Key Fob Unit A4479058203

€28.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. BJ32-3C097-AA

Range Rover Evoque L538 Front Height Level Sensor Right O/S BJ32-3C097-AA

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 05L907309S

Audi Q5 FY Mk2 40 TDI DTPA 204HP Engine Control Module ECU 05L907309S Automatic

€265.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9166279

BMW E81 E87 Boardmonitor Central Information Display Screen Control Unit 9166279

€237.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 1489994

Mini R50 R52 Starter Motor Engine W10 0,9KW Bosch Actuator 1489994

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9241826

On Board Screen BMW F10 F11 Central Information Display Monitor 10,25" 9241826

€94.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. KK62-14N274-AD

Range Rover Sport L494 Hybrid Wiring Loom Harness Cables KK62-14N274-AD

€47.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A2515401830

Mercedes W251 Starter Motor Alternator Wiring Harness Cable Loom A2515401830

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6788716

BMW 7 Series E65 E66 E67 Steering Column Control Unit CIM Module

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8720913

BMW U06 U10 U11 Front Power Distributor Box Cover Lid Housing 8720913

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9311039-1

BMW F10 F20 F22 F30 F32 Navigation Module Sat Nav DAB Head Unit High 9311039

€189.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6G9T-14297-BG

Ford Mondeo Mk4 Galaxy S-Max Windscreen Washer Nozzle Wiring 6G9T-14297-BG

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9243213

BMW X3 F25 Central Gateway Control Unit Module ECU 9243213

€28.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 3M5T-14B342-AB

Ford Mondeo Mk4 Side Air Module Crash Satellite Sensor 3M5T-14B342-AB

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. FT1T-15K868-AE

Ford Transit Connect Mk2 Rear Bumper Parking Sensor PDC Wiring FT1T-15K868-AE

€37.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A1725404105

Mercedes R172 Rain Sensor Wiring Harness Cable Loom A1725404105

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9264636-1

BMW 1 3 4 F20 F30 F32 1 Driver Side Seat Wiring Loom Electric Harness 9339286

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A2118701585-1

Rain Sensor Mercedes W211 W219 Windscreen Control Unit Module A2118701585

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. K515B-K212

Chip Power Chiptuning Box GS2 K515B-K212 Control Unit Module Tuning Set

€113.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 95GG-14489-ZTA

Ford Mondeo Mk4 Wiring Harness Cable Connector 95GG-14489-ZTA

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 06J971082D

Audi Q3 8U Engine Injector Module Wiring Harness Cable 2.0 TFSI 06J971082E

€28.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A2125406905

Mercedes W212 Door Wire Wiring Loom Front Left N/S A2125406905

€28.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9387147

BMW F30 LCI 330e B48X Positive Battery Cable Plus EME Loom 9387147

€56.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A2218708285

Mercedes W221 Head Unit DVD High Line Radio Player Navigation A2218708285

€560.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A0045454140

Mercedes ML W164 W251 Door Wiring Joint Protective Cap Bracket

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A4475411200

Mercedes Vito W447 Battery Support Holder Bracket Mount Tray A4475411200

€32.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 2622892

BMW 1 2 Series F20 F21 F22 F23 Control Unit Module Active Sound Design 2622892

€85.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A2115455301

Fuse Box Mercedes W211 Rear Trunk Module Relay Fuse Box SAM A2115455301

€37.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8C11-12A650-CG

Ford Transit MK7 2.2 TDCI P8FA 85HP Engine Control ECU 8C11-12A650-CG Manual

€132.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 83A919605C

Audi RSQ3 F3 Onboard MMI Multimedia Sat Nav Display Touch Screen 83A919605C

€379.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8N8035111C

Audi TT TTS 8N 6 Disc CD Changer And Cartridge 8N8035111C

€47.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6851242

ICM Module BMW F01 F02 Integrated Chassis Management QL ES Control Unit 6851242

€28.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 4G8971095AL-1

Audi A7 4G Front Bumper PDC Sensor Wiring Loom Harness Cable 4G8971095AL

€123.95

Free delivery: Aug 5 – 10

If paid before 14:00

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