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

Make

Audi TT FV Entry Keyless Kessy Control Module Unit ECU 3Q0959435B

Product currently unavailable

Part no. 5Q0915181C

Audi A3 8V Negative Battery Cable Terminal Clamp Wire 5Q0915181C

Product currently unavailable

Part no. 04L903018-1

Audi A4 B9 A5 F5 Q5 FY A6 C8 A7 C8 Alternator Generator Valeo 04L903018A

Product currently unavailable

Part no. 8795005

Mini F55 Body Control Unit Basic Module Body Domain Controller BDC LR01 8795005

Product currently unavailable

Part no. A2218207502

Mercedes W221 Front Centre Dashboard Speaker Logic 7 A2218207502

Product currently unavailable

Part no. 1381630

Ford Fiesta St Mk5 Battery Negative Cable Wire Harness 1381630 6S6T-14301-DB

Product currently unavailable

Part no. 9225099

Battery Cable BMW X3 F25 Red Positive Plus Pole Blow Off 9225099

Product currently unavailable

Part no. 2354693-3

BMW 3 5 X3 Series 3 E46 E60 E65 E83 M54 Petrol Starter Motor 2354693

Product currently unavailable

Part no. A1765400009

Negative Cable Mercedes C117 W176 Battery Lead Minus Pole Wiring A1765400009

Product currently unavailable

Part no. 6944963

BMW 5 Series E60 E61 Centre Console DTC PDC Switch Center Cluster 6944963

Product currently unavailable

Part no. 1K0971391ES

VW Golf Mk5 Seat Well Cable Front Left N/S Wiring Loom Harness 1K0971391ES

Product currently unavailable

Part no. 6985364-1

BMW 5 Series E60 Body Gateway Module KGM HIGH LEAR 6985364 61356985364

Product currently unavailable

Part no. 99764514003

Porsche Cayenne 955 9PA Changer 4-Disc Multichanger CD DVD 99764514003

Product currently unavailable

Part no. 7L0919283C

Volkswagen Touareg 7L PDC Parking Sensor Control Unit Module 7L0919283C

Product currently unavailable

Part no. 7577068-1

BMW E90 E91 E92 N52N 325i 218HP Engine ECU Kit DME 7577068 + CAS3 + Key Manual

Product currently unavailable

Part no. 8E0857925H

Audi A3 8P TT 8J A4 B7 Ipod Interface Multimedia Storage Compartment 8E0857925B

Product currently unavailable

Part no. 9112631

BMW E60 Light Control Unit Module LM E6X MAN.LWR Lear 9112631

Product currently unavailable

Part no. CPLA-14F720-BP

Range Rover Discovery 4 L319 DAB Radio Control Module ECU CPLA-14F720-BP

Product currently unavailable

Part no. A2229009519

Mercedes C238 Head Unit Radio CD Player Audio Sat Nav Control A2229009519

Product currently unavailable

Part no. 8R0971228T

Audi Q5 8R Battery Alternator Starter Wiring Harness Negative Earth 8R0971228T

Product currently unavailable

Part no. YJH000010

Range Rover L322 Battery Bracket Mount Holder Carrier Right Left N/O/S YJH000010

Product currently unavailable

Part no. 5F0971095A-1

Seat Leon Fr 5F MK3 Front PDC Parking Sensor Wiring Loom Harness Wire 5F0971095A

Product currently unavailable

Part no. 3420851-1

Boardmonitor BMW X3 E83 Central Information Display Screen 6,5" 3420851

Product currently unavailable

Part no. 7810000-1

BMW E81 E87 LCI E90 E91 120d 320d Diesel N47 ECU Kit DDE 7810000 CAS3 + 2 Keys

Product currently unavailable

Part no. 5A44586

BMW F40 Ultrasonic Alarm System Module Control Unit 5A44586

Product currently unavailable

Part no. 6500CY

Citroen Relay Peugeot Boxer Fuse Relay Electrical Box Housing Cover 6500CY

Product currently unavailable

Part no. 7533651-2

BMW Z4 Series E85 Roadster 2.2i M54 170HP ECU Kit DME 7533651 EWS3 Key Manual

Product currently unavailable

Part no. 6J4971161M

Seat Ibiza 6J Door Wiring Rear Right O/S Harness Loom Cable 6J4971161M

Product currently unavailable

Part no. MK2T-18D804-HH

Ford Transit Custom Mk8 Radio Stereo Media Head Unit MK2T-18D804-HH

Product currently unavailable

Part no. 9671135480

Peugeot 308 1.6 HDi Diesel Engine Wiring Cable Loom Harness 9671135480

Product currently unavailable

Part no. 7568842-4

BMW E90 E91 E92 335i Petrol N54 ECU Kit Control Unit DME 7568842 CAS3 Key Manual

Product currently unavailable

Part no. AC1112A650BA

Ford Transit MK7 2.2 TDCI Diesel Engine Control Unit Module ECU AC11-12A650-BA

Product currently unavailable

Part no. 6914648

BMW X5 Series E53 Xenon Light Control Unit Module ECU LCM III MAN.LWR 6914648

Product currently unavailable

Part no. A0055461040

Energy Distributor Mercedes W204 W212 W906 Power Block Control Unit A0055461040

Product currently unavailable

Part no. 9287535-1

Key Reading Module BMW E60 E61 E81 E87 E90 E91 CAS 3 ECU Control Unit 9287535

Product currently unavailable

Part no. A6421508900

Mercedes-Benz S W221 S350 CDI BlueTec OM642 Engine Control Unit ECU A6421508900

Product currently unavailable

Part no. A2829062400

Starter Mercedes W177 M282 Petrol Engine Starter Motor A2829062400

Product currently unavailable

Part no. 6799602

BMW F07 GT Self-Levelling Suspension Control Unit Module Bracket Holder 6792443

Product currently unavailable

Part no. 5F0941475A

Seat Leon Cupra 5F LED Headlight Module Left N/S Side 5F0941475A

Product currently unavailable

Part no. 7555178

Cover BMW F13 F12 F11 Engine Control Unit ECU Box Top Cover Shield 7555178

Product currently unavailable

Part no. 9226238-1

BMW E60 E87 E90 E91 E92 CAS 3 ECU Control Unit Key Reading Module 9226238

Product currently unavailable

Part no. A6395450301-1

Mercedes W639 Fuse Box Relay Control Unit Electric Module SAM A6395450301

Product currently unavailable

Part no. 6927929

Control Unit BMW E60 E61 E63 E64 CAS2 ECU Module 6927929

Product currently unavailable

Part no. KK3T-15K868-ECB

Ford Transit Mk8 Rear Park Distance Sensor Wiring Harness Cable KK3T-15K868-ECB

Product currently unavailable

Part no. A6421501230-1

Mercedes W219 CLS350 CDI OM642.920 Engine Module ECU Kit A6421501230 Key Lock

Product currently unavailable

Part no. 7545042-1

BMW 1 3 Series E87 E90 E91 120i 320i N46 ECU Kit DME 7545042 CAS2 Key Automatic

Product currently unavailable

Part no. 3450937

Mini Cooper One R56 Footwell Light Module High ECU PL3 FRM II 3450937

Product currently unavailable

Part no. 1K0971349BP

Volkswagen Golf Mk6 Alternator Main Cable Wiring Harness Loom 1K0971349BP

Product currently unavailable

Part no. 5N0971228

VW Volkswagen Tiguan 5N Positive Battery Terminal Cable Lead Wiring 5N0971228

Product currently unavailable

Part no. 4M0907590D

Audi S5 F5 Blind Spot Radar Distance Control Module Left N/S Slave 4M0907590D

Product currently unavailable

Part no. 8X0959793E

Audi A1 8X Q3 8U Front Door Module Driver's Side Control Unit ECU 8X0959793E

Product currently unavailable

Part no. 7518709

BMW 3 5 X5 Series E39 E46 E53 Automatic Gearbox Ecu Control Unit EGS 7518709

Product currently unavailable

Part no. 8655106

Mini F56 B38 1.5 136HP Petrol Engine ECU Module DME 8655106 Manual

Product currently unavailable

Part no. 8579480

BMW F10 F20 F30 120d 320d 520d N47N Engine Control Unit DDE 8579480 Automatic

Product currently unavailable

Part no. 4M0959760A

Audi A5 F5 Seat Module Control Unit ECU Front Left Right N/O/S 4M0959760A

Product currently unavailable

Part no. CK52-15B484-AC

Range Rover L405 Rear Bumper PDC Wiring Loom Harness Cable CK52-15B484-AC

Product currently unavailable

Part no. A2711500620

Engine Wiring Mercedes W204 C207 W212 M271 Harness Loom Cable A2711500620

Product currently unavailable

Part no. 6C1T15K602AF

Ford Transit Mk7 Antenna Amplifier Control Unit Module Controller 6C1T-15K602-AF

Product currently unavailable

Part no. 5A0EDF6

BMW F40 Alpine Basic Head Unit Media Audio Player GPS DAB 5A0EDF6

Product currently unavailable

Part no. 7PP907273D

Porsche Macan 95B Tyre Pressure Sensor Control Unit Module 7PP907273D

Product currently unavailable

Part no. 8S0907468B

Audi TT FV Central Gateway Control Unit Module ECU 8S0907468B

Product currently unavailable

Part no. 9141682-2

BMW E81 E87 E90 E91 Radio BMW Business CD Player Control Unit 9141682

Product currently unavailable

Part no. 7519721-1

BMW 3 5 7 X3 E46 E60 E61 E65 E83 M54 Alternator Generator 150A TG15C018

Product currently unavailable

Part no. 6944223

Mini R53 Door Wiring Loom Harness 6944223

Product currently unavailable

Part no. 9350705

BMW X3 F25 Body Control Module ECU Junction Box JBBFE III V8 9350705

Product currently unavailable

Part no. 7599881-11

BMW E87 LCI E90 E91 N43 170HP Engine Control Unit ECU KIT DME 7599881 Automatic

Product currently unavailable

Part no. A2049005908-1

Mercedes W204 Navigation CD Player COMAND Radio Sat Nav Head Unit A2049005908

Product currently unavailable

Part no. 02E911023H

Audi A3 Starter Motor Engine Diesel 02E911023H

Product currently unavailable

Part no. 8A6T17D547AB

Rain Sensor Ford Fiesta MK7 Mondeo MK4 Windscreen Light Module 8A6T17D547AB

Product currently unavailable

Part no. 9844137

BMW 1 Series F40 118i Petrol B38C 140HP ECU Kit DME 5A088E1 + Key + BDM Manual

Product currently unavailable

Part no. 6924555

BMW 7 Series E65 E66 Driver's Seat Airbag Sensor Control Unit Module

Product currently unavailable

Part no. 5A24036-1

BMW F20 F21 F30 F31 LCI F32 Navigation Sat Nav Computer Head Unit 5A24036

Product currently unavailable

Part no. 6934649

BMW 3 5 X5 Series E39 E46 E53 BMW Radio Professional TMC Becker 6934649

Product currently unavailable

Part no. A2095452001

Mercedes CLK C209 Fuse Box Relay SAM Module Control Unit A2095452001

Product currently unavailable

Part no. 9177195

BMW E65 E66 X5 E70 X6 E71 Video TV Tuner Module Control Unit ECU 9177195

Product currently unavailable

Part no. P04727535AC

Chrysler Grand Voyager Automatic Gearbox Control Module Unit ECU P04727535AC

Product currently unavailable

Part no. 6787836-1

BMW E81 E87 LCI E90 LCI ABS DSC Module Pump Wiring Harness Cable 6954572

Product currently unavailable

Part no. 8G91-12A650-EN

Ford Mondeo Mk4 2.2 TDCI 175HP Engine Control Unit ECU 8G91-12A650-EN Manual

Product currently unavailable

Part no. 2G6035954

Volkswagen T-Roc Golf Mk8 USB-C Port Socket Double Rear Centre Console 2G6035954

Product currently unavailable

Part no. 8P7907115K-2

Audi A3 8P 1.8 TFSI CDAA 160HP Engine Control Module ECU Kit 8P7907115K Manual

Product currently unavailable

Part no. A2819001503-1

Smart Fortwo A453 M281.910 90HP Engine Control ECU Kit A2819001503 Automatic

Product currently unavailable

Part no. 9357961

BMW F20 F21 LCI Front Bumper PDC Sensors Wiring Loom Harness 9357959

Product currently unavailable

Part no. A2139006016

Mercedes W213 C238 Air Suspension Level Control Unit Module Airmatic A2139006016

Product currently unavailable

Part no. 7823934-2

Mini Cooper D R55 R56 Diesel W16 1.6 109HP ECU Kit DDE 7823934 CAS3 Keys Manual

Product currently unavailable

Part no. 7638193

BMW F20 F21 F30 F31 N13 114i 116i 118i 316i Petrol Engine Starter Motor 7638193

Product currently unavailable

Part no. A2059065806

Mercedes W205 W213 C253 Fuse Box Front Relay Control Unit Module A2059065806

Product currently unavailable

Part no. 5A7F553

BMW G26 Reverse Rear View Camera 5A7F553

Product currently unavailable

Part no. 8617050-3

Mini One R56 LCI N16 1.6 98HP Engine Control Unit Module ECU DME 8617050 Manual

Product currently unavailable

Part no. 6759023

BMW 3 5 7 X5 Series E38 E39 E46 E53 RDC Tyre Pressure Monitor Module 6759023

Product currently unavailable

Part no. 8P0035193GX

Audi A3 8P Radio Media GPS Sat Navigation Unit 8P0035193GX

Product currently unavailable

Part no. 7075943-5

BMW 5 7 X5 Series 5 E60 E61 E65 E70 Front Left Seat Height Adjustment Drive N/S

Product currently unavailable

Part no. 8U0971687B

Audi Q3 8U Rear Door Loom Wiring Harness Cable Left Right N/O/S 8U0971687B

Product currently unavailable

Part no. A0024463340

Mercedes-Benz W169 W245 Petrol M266 Engine Control Module A2661538479 Manual

Product currently unavailable

Part no. A2205401224

Mercedes CL S Class C215 W220 Fuse Box Unit Front Left ECU A2205401224

Product currently unavailable

Part no. 5Q0959655A

Audi A3 8V Air Module Control Unit SRS System ECU 5Q0959655A

Product currently unavailable

Part no. 4G0907468G

Audi A7 4G8 Central Gateway Control Lear Module Unit ECU 4G0907468G

Product currently unavailable

Part no. A6079002300

Mercedes W176 W246 180 CDI 607.951 109HP Engine Unit ECU Automatic A6079002300

Product currently unavailable

Part no. 4E0910110E

Audi S6 C6 6-Disc CD Changer Magazine Head Unit MMI 4E0910110E

Product currently unavailable

Part no. YFB100380

Land Rover Freelander L314 Digital Dash Clock Display 4 Pin YFB100380 52010215C

Product currently unavailable

...

Showing 18316-18414 of 19104 products