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

Audi A5 F5 Pedestrian Protection Pressure Sensor 8W0959121G

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. 059907282

Audi A6 C8 Q7 4M Glow Plug Relay Unit Control Module 3.0 TDI 059907282

Product currently unavailable

Part no. 7PP907273D

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

Product currently unavailable

Part no. NNW502436

Land Rover Discovery 3 L319 Air Module Control Unit ECU NNW502436

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. 9M5Q-12A343-AA

Ford Mondeo Mk4 S-Max Galaxy Glow Plug Relay 2.0 TDCi Diesel 9M5Q-12A343-AA

Product currently unavailable

Part no. YTB500090

Range Rover L322 Negative Battery Cable Clamp Lead Wire YTB500090

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. 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. 6989112-ASB

BMW E60 E61 PDC Ultrasonic Parking Sensor Astro Black Metallic A25

Product currently unavailable

Part no. 6924555

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

Product currently unavailable

Part no. 4K0971228K

Audi A6 C8 Engine Starter Electrical Wiring Loom Harness Cable 4K0971228K

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. VW8-XY

Seat Leon 1P Mk2 Radio Player Multimedia Screen Bluetooth Android VW8-XY

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. 8R0907333-1

Audi Q5 R8 3.0 TDI CGQB Seat Heater Control Unit Module 3T0959772B

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. 1C1A-14B321-BC

Ford Transit Mk6 Air Module Control Unit Sensor SRS 1C1A-14B321-BC

Product currently unavailable

Part no. A6549009600-2

Mercedes W177 Engine Control Unit ECU 2.0 Diesel 150HP Automatic A6549009600 Kit

Product currently unavailable

Part no. JK2T-18K810-LB

Ford Transit Custom Music Radio CD Stereo Player Head Module Unit JK2T-18K810-LB

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. 4E0910336H

Audi A6 C6 Q7 4L Bluetooth Telephone Control Module ECU 4E0910336H

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. 8519663-25

Mini Cooper SD R56 LCI N47N 143HP Diesel Engine ECU Kit DDE 8519663 Automatic

Product currently unavailable

Part no. A1768210136

Mercedes W176 Trim Panel Rain Sensor Light Solar Condensation Cover A1768210136

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. 8V4971036AT

Audi A3 8V Front Door Wiring Loom Harness Passenger Side N/S 8V4971036AT

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. A2215408045

TPM Module Mercedes W221 S500 C216 Tire Pressure System Module RDK A2215408045

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. 5C5919475A

Volkswagen New Beetle PDC Parking Assistant Module Control Unit 5C5919475A

Product currently unavailable

Part no. 5Q0959655A

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

Product currently unavailable

Part no. 9894912-5

BMW F36 LCI Engine Control Unit ECU Kit 2.0 B48 Petrol Automatic 184hp 9894912

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. 6842524

BMW G20 G21 G22 G28 G42 Battery Voltage Jump Start Terminal Unit 6842524

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

Part no. 5K0937086F

VW Volkswagen Scirocco Mk3 Body Comfort Control Module Unit BCM 5K0937086F

Product currently unavailable

Part no. 7567362-3

BMW 3 Series E92 N52N 325i 218HP ECU Kit DME CAS3 + Key 7567362 Manual

Product currently unavailable

Part no. 3H42-19K350-GD

Range Rover Sport L320 Discovery 3 Bluetooth Control Module Unit 3H42-19K350-GD

Product currently unavailable

Part no. A0009004301

Mercedes C204 C207 C214 C218 Module Fuel Pump Control Module Unit A0009004301

Product currently unavailable

Part no. 9335281

BMW F20 Electric Wire Harness Loom Cable 9335281 N47D20C Diesel 9335281

Product currently unavailable

Part no. 02Z911023P

VW Volkswagen Transporter T5 2.0 TDI Diesel Engine Starter Motor 02Z911023P

Product currently unavailable

Part no. 8366381-1

BMW 3 5 E34 E36 1 Windscreen Wiper Wash Wi-Wa Control Unit Module ECU 8366381

Product currently unavailable

Part no. 8582279-10

BMW F20 F30 F32 120dX 320dX 420dX N47N 184HP Engine ECU Kit DDE 8582279 Manual

Product currently unavailable

Part no. 7787557

BMW 3 Series E46 M47N 320d Engine Wiring Harness Module Diesel Manual 7787557

Product currently unavailable

Part no. 9678048880

Alternator Generator Peugeot 208 308 Partner Diesel 12V 9678048880

Product currently unavailable

Part no. 070911023C

Volkswagen Touareg Diesel Engine Starter Motor Actuator Starter 070911023C

Product currently unavailable

Part no. A6519000700-2

Mercedes W906 313 CDI OM651.955 129HP Diesel Engine ECU Kit A6519000700 Key Lock

Product currently unavailable

Part no. KK2T-9K499-CBC

Ford Transit Custom Mk8 Engine Wiring Loom Harness Cable KK2T-9K499-CBC

Product currently unavailable

Part no. YS4F-18C815-AC

Ford Transit Mk7 Multimedia Radio CD Player Head Unit Module YS4F-18C815-AC

Product currently unavailable

Part no. KK2T-2L508-AF

Ford Transit Custom Rear Axle ABS Wiring Loom Harness KK2T-2L508-AF

Product currently unavailable

Part no. 6947119

BMW 7 Series E65 E66 E67 Control Unit Door Rear Driver Side 6947119

Product currently unavailable

Part no. A2049000600

Mercedes W204 Fuse Box Relay Control Unit SAM Module A2049000600

Product currently unavailable

Part no. DH52-10C652-AC

Land Rover FREELANDER 2 L359 Battery Cable Wire DH52-10C652-AC

Product currently unavailable

Part no. 03G906016KN-1

Audi A4 B7 2.0 TDI BPW 140HP Engine ECU Kit Ignition + Key 03G906016KN Manual

Product currently unavailable

Part no. A1648203885

Mercedes ML W164 Front Right Control Unit Module Door A1648203885

Product currently unavailable

Part no. 7561834-23

BMW Z4 E85 2.0i N46 150HP Engine Control Module Unit Kit DME ECU 7561834 Manual

Product currently unavailable

Part no. A6429002900-6

Mercedes C207 E350 CDI BlueEfficiency OM642.836 Engine Module ECU A6429002900

Product currently unavailable

Part no. 9496816

BMW F70 F74 X1 U11 X2 U10 Acceleration Crash Impact Sensor 9496816

Product currently unavailable

Part no. 7519620

BMW 3 Z4 E46 E85 M54 325i 2.2i 2.5i 3.0i Alternator Generator 120A Bosch

Product currently unavailable

Part no. A2118707226

Mercedes W211 Door Module Front Right O/S Control Unit ECU A2118707226

Product currently unavailable

Part no. 03G903016E-1

Audi A4 B8 A5 8T Alternator Generator 14V 140A 03G903016E

Product currently unavailable

Part no. 7801711-5

BMW X3 E83 M47N2 2.0d 150HP ECU Kit DDE + EWS + Key 7801711 Manual

Product currently unavailable

Part no. A1648207826

Mercedes W164 Door Module Front Right O/S Control Unit Module A1648207826

Product currently unavailable

Part no. 6938049

BMW 3 5 Series E39 E46 Touring Ultrasonic Roof Alarm Sensor Module ECU 6938049

Product currently unavailable

Part no. 7565287

BMW 1 3 5 7 X5 X3 SERIES E46 E60 E65 E81 E87 E90 E91 E92 E93 Cap Nut Alternator

Product currently unavailable

Part no. 1K0971349AQ

Volkswagen VW Golf Mk6 Alternator Cable Wiring Harness Loom 1K0971349AQ

Product currently unavailable

Part no. A0009829508

Mercedes W205 W213 10Ah 170A Auxiliary Additional Generator Battery A0009829508

Product currently unavailable

Part no. 8587952-1

BMW F20 F21 LCI 116d B37 Diesel ECU Kit Unit DDE 8587952 + FEM + Key Automatic

Product currently unavailable

Part no. 7PP907357L

Porsche Macan 95B Headlight Control Module Unit Hella 7PP907357L

Product currently unavailable

Part no. 5QF035726

Volkswagen Tiguan Mk2 Media Connection Module Port AUX Double USB 5QF035726

Product currently unavailable

Part no. A2219008603

Mercedes W221 Door Control Module Unit ECU Front Right O/S A2219008603

Product currently unavailable

Part no. RHD-2102295

Ford Fiesta Mk8 Jumper Wiring Harness Cable Loom H1BT-15B484-DC

Product currently unavailable

Part no. KK3T-14D068-JC

Ford Transit Custom Mk8 Fuse Box Power Distribution 2.0 Diesel KK3T-14D068-JC

Product currently unavailable

Part no. 0AM911023TX

Audi A1 8X Starter Motor Petrol Engine Electrical Unit Actuator 02M911024J

Product currently unavailable

Part no. 8585375-1

BMW F06 Gran Coupe 640d N57Z 313HP Engine Control ECU Kit 8585375 Automatic

Product currently unavailable

...

Showing 21880-21978 of 22739 products