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

Mercedes W205 C300h Heater Control Module Unit ECU A2229008811

Product currently unavailable

Part no. 3403208-6

BMW X3 E83 Ultrasonic Alarm System Module Control Unit 3403208

Product currently unavailable

Part no. A2055407916

Mercedes W205 Battery Ground Earth Cable Wire 3.0 Petrol C43 A2055407916

Product currently unavailable

Part no. KD-R331-1

JVC KD-R331 Car Radio Stereo CD MP3 AUX Bluetooth Audio Player Head Unit

Product currently unavailable

Part no. 36100-2A550

Kia Sportage 3 1.7 Diesel Engine Starter Motor Denso 36100-2A550

Product currently unavailable

Part no. 8217102790

Toyota Corolla E12 Roof Wiring Loom Harness Cable Wire 8217102790

Product currently unavailable

Part no. 4G8971365K

Audi A6 C7 Seat Belt Wiring Harness Warning System Left Right N/O/S 4G8971365K

Product currently unavailable

Part no. 4E0910148E

Audi S4 B8 A4 A5 S5 TV Receiver Tuner Television Receiver Module 4E0910148E

Product currently unavailable

Part no. RHD-9385203-1

BMW F20 F21 LCI F22 F23 Central Information Display Screen Unit 8.8" 9385203

Product currently unavailable

Part no. 8612002520

Toyota Auris Mk1 E15 Stereo Radio CD Player Head Unit Control Module 86120-02520

Product currently unavailable

Part no. 270600T010

Toyota Auris E15 Corolla E12 Yaris Verso Alternator 90A 12V 270600T010

Product currently unavailable

Part no. 89024777

Volvo XC90 Headlight Level Adjuster Actuator Motor 89024777

Product currently unavailable

Part no. 8W5945094AA-1

Audi A4 B9 S4 8W Rear Tail Light LED Right O/S Wire Cable Harness 8W5945094AA

Product currently unavailable

Part no. 1737497

Ford Kuga C394 Battery Cable Wire Loom Harness Negative 9V4T-14A280-BAC

Product currently unavailable

Part no. rhd-A2135404139

Fuse Box Mercedes W213 C238 C257 Front Relay Module Control Unit A2135404139

Product currently unavailable

Part no. 06F971082F-1

Audi TT 8J 2.0 TFSI Petrol Fuel Injectors Wiring Harness 06F971082F

Product currently unavailable

Part no. A2059064505-2

Mercedes S205 Estate Rear Headlight Wiring Harness Cable Right O/S A2059064505

Product currently unavailable

Part no. A2139000124

Mercedes W213 W222 C257 Amplifier Module Audio Burmester A2139000124

Product currently unavailable

Part no. 95B971228L

Porsche Macan 95B Starter Motor Alternator Wire Cable Loom 95B971228L

Product currently unavailable

Part no. AM5T-18C815-PF

Ford Fiesta Mk7 CD Player Radio Head Unit Multimedia AM5T-18C815-PF

Product currently unavailable

Part no. 28116487

Fuse Box Citroen Berlingo Peugeot Partner Control Unit Module 28116487

Product currently unavailable

Part no. 09D927750EE

VW Volkswagen Touareg 7L Automatic Gearbox Module Control Unit ECU 09D927750EE

Product currently unavailable

Part no. 8Y4971104AL

Audi S3 8Y Electric Rear Bumper Wiring Harness PDC Loom Cable 8Y4971104AL

Product currently unavailable

Part no. A1648204164-2

Mercedes GL X164 Rear Lamp Light Side Panel Wiring Cable Left N/S A1648200564

Product currently unavailable

Part no. 46861380

Fiat Ducato Starter Alternator Ignitor Cable Loom Wire Harness 46861380

Product currently unavailable

Part no. 03L903024F

Alternator Volkswagen VW Sharan 2.0 TDI Engine Alternator 180A Bosch 03L903024F

Product currently unavailable

Part no. 7L0937503-2

Porsche Cayenne 92A Fuse Box Relay Control Unit Module 7L0937503

Product currently unavailable

Part no. 0001123044

Volkswagen VW Golf VI Passat B6 2.0 TDI Diesel Engine Starter Motor 0001123044

Product currently unavailable

Part no. 8T0959665B

Audi A5 8T 8F Front Seat Longitudinal Switch Control Module Left N/S 8T0959665B

Product currently unavailable

Part no. HPLA-70718-SF

Range Rover L405 Telematics Control Module Unit ECU HPLA-70718-SF

Product currently unavailable

Part no. 9254766

BMW F12 F13 Front Bumper PDC Wiring Harness Loom Cable Adapter 9254766

Product currently unavailable

Part no. 6941511

Mini Cooper One R50 R52 R53 Radio Boost MD Player Head Unit 6941511

Product currently unavailable

Part no. 8974142151

Toyota RAV4 Mk2 Door Control Central Lock Unit Module ECU 8974142151

Product currently unavailable

Part no. 8E0035192T

Audi A4 B7 Sat Navi Stereo Radio Audio Head Unit CD Player 8E0035192T

Product currently unavailable

Part no. A0315450832

Mercedes-Benz E-Class W210 ESP PML BAS Control Unit Module ECU A0315450832

Product currently unavailable

Part no. 4M0965429BC

Audi A6 C8 Thermo Management Control Unit 4M0965429

Product currently unavailable

Part no. A2215402350-1

Mercedes W221 W216 Fuse Box Junction Control Unit Relay Module A2215402350

Product currently unavailable

Part no. 079903021E

Audi A4 B7 4.2 BBK Petrol Engine Alternator Generator 079903021E

Product currently unavailable

Part no. A1779064903-2

Mercedes W177 LED Headlight Light Lamp Wire Harness Cable Left N/S A1779064903

Product currently unavailable

Part no. 1K9971694R

VW Volkswagen Golf 1K Door Wiring Loom Harness Cable Rear Right O/S 1K9971694R

Product currently unavailable

Part no. DPLA-70718-NX

Range Rover Evoque L538 Telematics Control Module ECU DPLA-70718-NX

Product currently unavailable

Part no. 2321615

Ford Fiesta Mk7 Alternator Generator 1.6 Petrol Engine AV11-19D629-AC 2321615

Product currently unavailable

Part no. DK52-14A583-AD

Land Range Rover L405 Tailgate Upper Loom Wiring Harness Cable DK52-14A583-AD

Product currently unavailable

Part no. 4107919

BMW E46 Convertible Alarm System Sensor Anti Theft Module Control Unit 4107919

Product currently unavailable

Part no. 5QF971227D

Audi RSQ3 F3 Battery Cable Plus Pole Positive Wiring Harness Loom 5QF971227D

Product currently unavailable

Part no. 059903018E-1

Audi A6 C6 Q7 4L Diesel Alternator Generator 14V 180A Electrical Unit 059903018E

Product currently unavailable

Part no. 9284295

BMW X1 U11 G26 F30 High Voltage Switch Safety Connector 9284295

Product currently unavailable

Part no. M8D2-14N030-AA

Range Rover Evoque L551 Rear Fuse Box Relay Control Unit Module M8D2-14N030-AA

Product currently unavailable

Part no. 6700003722

Smart A453 Power Steering Rack Control Unit Module 6700003722

Product currently unavailable

Part no. 5G0971095A

VW Volkswagen Golf Mk7 Wiring Loom PDC Front Harness Parking Sensor 5G0971095A

Product currently unavailable

Part no. A6519009702-2

Mercedes H243 EQA350 780.200 4-Matic Engine Unit ECU A6519009702 Automatic

Product currently unavailable

Part no. 2344232

BMW 3 5 7 X3 X5 Series E46 E53 E60 E65 E83 M57N Starter Motor 2,0 KW 2344232

Product currently unavailable

Part no. 3D0959759B

VW Volkswagen Phaeton 3D Seat Control Unit ECU Front Passenger Side 3D0959759B

Product currently unavailable

Part no. KK21-12B565-HB

Ford Transit Custom Automatic Gearbox Module Control 2.0 TDCI KK21-12B565-HB

Product currently unavailable

Part no. 4E0971225F

Audi A8 D3 Battery Starter Alternator Positive Cable Wire Looom 4E0971225F

Product currently unavailable

Part no. A2128270228-PAL

Mercedes W212 Aerial Fin Roof Antenna Shark Palladium Silver - 792 A2128270228

Product currently unavailable

Part no. 8V51-14A075-AC

Ford Fiesta Mk7 Positive Battery Terminal Fuse Box Cover Lid 8V51-14A075-AC

Product currently unavailable

Part no. 6S61-13404-BF-1

Ford Fiesta Mk6 Tail Light Lamp Rear Right O/S Harness Wire Loom 6S61-13404-BF

Product currently unavailable

Part no. 9196669-1

BMW E81 E87 E90 E91 E92 6-Disc CD Changer With Magazine 9196669

Product currently unavailable

Part no. LR044033

Range Rover L405 Electronic Radio Supression Module Passive Filtering LR044033

Product currently unavailable

Part no. A1715400407

Mercedes R171 Door Courtesy Lamp Light Wiring Loom Harness Cable A1715400407

Product currently unavailable

Part no. 9646321880

Peugeot 307 Citroen Berlingo Diesel Engine Alternator Generator 9646321880

Product currently unavailable

Part no. A2133402600

Mercedes W205 W213 Battery Holder Mounting Bracket Support A2133402600

Product currently unavailable

Part no. 8P0941004-2

Audi A3 8P Front Lamp Headlight Halogen Right O/S Harness Loom Wire 8P0941004BC

Product currently unavailable

Part no. 8P7907115B

Audi A3 8P 2.0 TFSI CAWB 200HP Engine Control ECU Kit 8P7907115B Automatic

Product currently unavailable

Part no. 8V51-10A789-AE

Ford Fiesta Mk7 Battery Box Tray Housing Holder Bracket Mount 8V51-10A789-AE

Product currently unavailable

Part no. A1636801080-1

Mercedes-Benz M-Class ML W163 1 Cover Footwell Fuse Box Trim Right A1636801080

Product currently unavailable

Part no. A6511504633

Engine Wiring Mercedes W204 W212 OM651 Diesel Harness Loom Cable A6511504633

Product currently unavailable

Part no. 6910381

BMW 7 Series E65 E66 Dashboard Dash Sun Solar Sensor Speaker Cable 6910381

Product currently unavailable

Part no. A2025458440

Mercedes-Benz W202 C208 W208 Control Unit Bracket Holder Boot Trunk A2025458440

Product currently unavailable

Part no. 4F0907280B

Audi Q7 4L On Board Onboard Supply Module Control Unit ECU 4F0907280B

Product currently unavailable

Part no. 8F0971035F

Audi S5 A5 8F Front Door Trim Wiring Harness Cable Loom Left N/S 8F0971035F

Product currently unavailable

Part no. A2049005503

Mercedes C207 Complete Damper Adjustment Control Module ECU A2049005503

Product currently unavailable

Part no. STAG QBOX

STAG QBOX Basic LPG CNG 4-Cylinder Control Unit Module Injection Controller ECU

Product currently unavailable

Part no. 0390203330

Mercedes W207 Seat Adjustment Motor Front Seat Actuator Unit 0390203330

Product currently unavailable

Part no. 2W93-14B192-BA

Range Rover Sport L320 Black Relay Plug 12V 4-Pin Tyco 2W93-14B192-BA

Product currently unavailable

Part no. 06A906033DP-1

Volkswagen New Beetle 1.6 BFS 102HP Engine ECU Kit 06A906033DP Ignition + 2 Keys

Product currently unavailable

Part no. 95863109602-2

Porsche Cayenne 92A Rear Tail Light Lamp Cable Wire Plug Right O/S 95863109602

Product currently unavailable

Part no. 8589145-16

BMW F20 F21 F30 F31 118d 318d B47 150HP Engine Control ECU DDE 8473185 Manual

Product currently unavailable

Part no. YQE500350

Range Rover Sport L320 Discovery 3 Interior Fuse Box BCU YQE500350

Product currently unavailable

Part no. 6R0937548C-1

Skoda Fabia 5j Fuse Box Relay Carrier Holder Bracket Mount Tray 6R0915345E

Product currently unavailable

Part no. 7801711-6

BMW E60 E87 E90 120d 320d 520d M47N2 ECU Engine Control Kit DDE 7801711 CAS2 Key

Product currently unavailable

Part no. 7796819-1

Engine Wiring BMW X5 E53 3.0d M57N Loom Cable Harness Injector Module 7796819

Product currently unavailable

Part no. 8475468

BMW G20 320d B47D 190HP Engine Control Unit Module ECU Kit DDE 8475468 Key BDC

Product currently unavailable

Part no. A2059064405-2

Mercedes S205 Estate Rear Headlight Wiring Harness Cable Left N/S A2059064405

Product currently unavailable

Part no. 7300271-2

BMW F01 Rear Tail Light Wiring Harness Cable Inner Left N/S 7300271

Product currently unavailable

Part no. A6511530879

Mercedes W906 OM651 Glow Plug Pre Heat Relay A6511530879

Product currently unavailable

Part no. 98078859

Citroen Berlingo 1.6 HDI 9H06 Engine Control Unit ECU EDC 98078859 Manual

Product currently unavailable

Part no. A2229001206

Mercedes W205 C300h Drivetrain Control Module Hybrid A2229001206

Product currently unavailable

Part no. AV6N-15K607-AG

Ford Mondeo Mk4 Kuga Mk2 Interior Roof Alarm Motion Sensor AV6N-15K607-AG

Product currently unavailable

Part no. 8581253

BMW X2 F39 F40 F45 X1 F48 Integrated Supply Power Module Control Unit 8581253

Product currently unavailable

Part no. KK2T-15K868-ABE

Ford Transit Custom Mk8 Rear Bumper Parking Sensor Wiring Loom KK2T-15K868-ABE

Product currently unavailable

Part no. 9197317-1

BMW E61 LCI Body Gateway Module KGM HIGH 27 D-Can LEAR 9197317

Product currently unavailable

Part no. 7L0907401B-1

Volkswagen Touareg 3.0 TDI BKS 225HP Engine Control ECU Kit 7L0907401B Automatic

Product currently unavailable

Part no. 8966105C00

Toyota Avensis T270 147HP Engine Control ECU Unit 1.8 2ZRFAE Manual 8966105C00

Product currently unavailable

Part no. 9356496

BMW F06 F12 F13 Dashboard Display Central SAT NAV Information Monitor 9356496

Product currently unavailable

Part no. YC1E10K019BA

Ford Transit MK6 2.4 Diesel Alternator Bracket Mount Support YC1E10K019BA

Product currently unavailable

Part no. DW93-9137-AB

Jaguar Xf X250 Steering Column Lock Module Harness Loom Wire Cable DW93-9137-AB

Product currently unavailable

Part no. 059971379

Audi A5 8T 3.0 TDI CCWA Wiring Harness Cable Connector 059971379

Product currently unavailable

...

Showing 23068-23166 of 30469 products