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

BMW Z4 E85 2.5i M54 192HP Engine ECU Control Unit Module DME 7527072 Manual

Product currently unavailable

Part no. F20-ANDROID-SCREEN

BMW F20 F21 LCI GPS Dashboard Display Screen Navigation Sat Nav Android 10,25"

Product currently unavailable

Part no. 8K0907401F-2

Audi A4 B8 3.0 TDI 240HP CAPA Quattro Engine ECU Kit 8K0907401F Manual

Product currently unavailable

Part no. 9270020

BMW F06 F12 F13 Front Wiring Loom PDC Harness Parking Sensor 9270020

Product currently unavailable

Part no. A1699010100-2

Fuse Box Mercedes W169 W245 SAM Body Control Module Unit ECU A1699010100

Product currently unavailable

Part no. BK2T14B476BU

Ford Transit MK8 Fuse Box Relay Body Control Comfort Module BCM BK2T14B476BU

Product currently unavailable

Part no. 9247465

BMW X5 E70 X6 E71 Body Control Unit Module Junction Box ECU 9247465

Product currently unavailable

Part no. 7E0035156

Volkswagen Transporter T5 Multimedia Head Unit Radio CD Player 7E0035156

Product currently unavailable

Part no. 5Q0035726E-1

VW Passat B8 Skoda Superb Mk3 Fabia Mk3 USB Port Socket Connector 5Q0035726E

Product currently unavailable

Part no. 1125053

Audi A4 B7 Starter Motor Engine Diesel Bosch 0001125053

Product currently unavailable

Part no. 9275510

Head Unit BMW F07 GT Car Infotainment Computer Sat Nav Multimedia DAB 9275510

Product currently unavailable

Part no. 7801710-1

BMW E87 E90 E91 118d 318d M47N2 Engine ECU Kit DDE CAS2 Key 7801710

Product currently unavailable

Part no. 3454818

Mini Cooper R57 R57N LCI Cabrio Convertible Top Module Roof 3454818

Product currently unavailable

Part no. 1737497

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

Product currently unavailable

Part no. A2218702686

Mercedes W221 Head Unit Radio Player Media Navigation DVD Changer A2218702686

Product currently unavailable

Part no. 8626762

BMW F20 M135i N55 326HP Engine Control Unit ECU DME 8626762 Automatic

Product currently unavailable

Part no. 7560955-2

BMW E90 320si 173HP N45 Petrol Engine ECU Kit DME 7560955 + CAS2 + 2 Keys Manual

Product currently unavailable

Part no. A6429002900-3

Mercedes W207 E350 CDI BlueEfficiency OM642.836 Engine Module ECU A6429002900

Product currently unavailable

Part no. 7823934-1

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

Product currently unavailable

Part no. 7068054-1

BMW 5 7 Series E60 E61 E65 E66 Front Seat Transmission Bracket Arm 7068054

Product currently unavailable

Part no. 3456987-1

Mini Cooper One R57 Footwell Light Module High EKS ECU PL3 FRM3R 3456987

Product currently unavailable

Part no. 6951856

BMW 5 Series E60 E61 CCC CD Professional Navigation Controller 6951856

Product currently unavailable

Part no. 281156951R

Renault Master III Radio CD Player Bluetooth Head Unit USB MP3 281156951R

Product currently unavailable

Part no. 3456363

Mini R56 LCI R60 Radio MINI CD Player Head Unit Controller 3456363

Product currently unavailable

Part no. 7790879

MINI Cooper D One R50 Alternator Generator 7790879

Product currently unavailable

Part no. 8518568-3

BMW F20 F30 120d 320d ed Diesel N47N 163HP ECU Kit DDE 8518568 + Key + FEM

Product currently unavailable

Part no. 9267958

BMW F20 F30 MINI F56 Control Unit Air Conditioning Module 9267958

Product currently unavailable

Part no. A6519007401-6

Mercedes SLK R172 250CDI 651.980 204HP Engine ECU Kit Ignition + Key A6519007401

Product currently unavailable

Part no. 8385987

BMW X5 E53 Support Bracket Navigation Computer 8385987

Product currently unavailable

Part no. 99661821900

Porsche Boxster 986 Air Module Control Unit Controller ECU 99661821900

Product currently unavailable

Part no. 8626172-8

BMW F10 LCI 520i N20 184HP Engine Control ECU Kit DDE 8626172 Automatic

Product currently unavailable

Part no. 5Q4959393

VW Volkswagen Golf MK7 Front Door Control Unit Module 5Q4959393

Product currently unavailable

Part no. 7466108

BMW X3 G01 Led Light Daytime Running Module Control Unit ECU Right O/S 7466108

Product currently unavailable

Part no. 4H0035670T

Audi A8 D4 Reader Radio CD System Audio MMI Multimedia Head Unit 4H0035670T

Product currently unavailable

Part no. 8510137

BMW F10 F11 520d Diesel N47N 184HP Engine ECU Control Unit DDE 8510137 Automatic

Product currently unavailable

Part no. 7848265

BMW F87 M2 F80 M3 F82 F83 M4 S55 Engine Wiring Loom Module Harness Cable 7848265

Product currently unavailable

Part no. 8T2907115

Audi A5 8T 2.0 TFSI CNCD Quattro 224HP Engine Control ECU 8T2907115 Automatic

Product currently unavailable

Part no. A1715451701-1

Fuse Box Mercedes SLK R171 Roadster SAM Relay Box Control Module A1715451701

Product currently unavailable

Part no. 7612455-1

BMW E90 E91 LCI E92 E93 325i N53 218HP ECU Kit DME CAS3 + Key 7612455 Manual

Product currently unavailable

Part no. 6936096

BMW 3 X3 X5 Series E46 E53 E83 Navigation System Video Module Unit

Product currently unavailable

Part no. 1K0907655A

Audi A3 8P Yaw Sensor ESP Rotation Rate Control Unit Module 1K0907655A

Product currently unavailable

Part no. 9258164

BMW E81 E82 E87 E88 E90 E91 E92 E93 Radio Professional CD 9258164

Product currently unavailable

Part no. A2731536591-1

Mercedes W221 S500 4-Matic M273.968 Engine Control Unit ECU Kit A2731536591 Key

Product currently unavailable

Part no. 7516809

BMW E46 Valvetronic Valve VVT Control Unit Module ECU N42 Petrol 7516809

Product currently unavailable

Part no. 6989069

BMW X3 X5 E53 E60 E61 E83 PDC Parking Sensor Ultrasonic Schwarz Black 6989069

Product currently unavailable

Part no. 4L0035223D

Audi Q7 4L Quattro Audio Sound BOSE Amplifier Stereo System Module 4L0035223D

Product currently unavailable

Part no. 03E971612AD

Volkswagen Polo 6R Engine Wiring Loom Harness 03E971612AD

Product currently unavailable

Part no. 6935667

BMW Z4 Series E85 Battery Lead Positive Cable Plus Pole 6935667

Product currently unavailable

Part no. 7811151-7

BMW E60 LCI E90 325d 525d M57N2 ECU Engine Control Unit DDE 7811151 Manual

Product currently unavailable

Part no. A6511503633

Mercedes W212 OM651 Diesel Engine Wiring Harness Loom Cable A6511503633

Product currently unavailable

Part no. 069911023MX

Volkswagen LT 2.5 Touareg 3.0 TDI Diesel Engine Starter Motor 069911023MX

Product currently unavailable

Part no. 9286885

BMW Z4 E89 LED Footwell Control Module ECU 9286885

Product currently unavailable

Part no. 7H7970292P

VW Volkswagen Transporter T5 Comfort Convenience Body Module BCM 7H0937049T

Product currently unavailable

Part no. A0009059906

Distance Radar Module Mercedes GLE W166 C292 Control Unit A0009059906

Product currently unavailable

Part no. 6921965

Mini Cooper One R50 R53 Radio Boost CD Player Unit Head 6921965

Product currently unavailable

Part no. 1K0959792G

VW Volkswagen Golf 1K Mk5 Window Lifter Motor Module Front Right O/S 1K0959792G

Product currently unavailable

Part no. 99761826006

Porsche Cayman 987C BCM Body Control Module Unit ECU 99761826006

Product currently unavailable

Part no. 4H0959107AB

Audi A8L 4H Tailgate Lift Boot Lid Control Unit Module Trunk 4H0959107AB

Product currently unavailable

Part no. FV6T14324BFA

Ford Transit Connect Earth Ground Cable Battery Lead Wiring Loom FV6T14324BFA

Product currently unavailable

Part no. 9251975-1

Light Module BMW F11 Control Footwell Lightning ECU Unit FRM3 9251975

Product currently unavailable

Part no. A0009001900

Mercedes W639 Automatic Gearbox EGS Control Unit Transmission Module A0009001900

Product currently unavailable

Part no. 02T911023M

Audi A3 8P 1.6 MPI Petrol Starter Motor Engine 02T911023M

Product currently unavailable

Part no. 7805349-3

BMW X3 E83 LCI M47N2 2.0d 150HP Engine Control ECU Kit DDE 7805349 Manual

Product currently unavailable

Part no. 4F0907289N

Audi A6 C6 Body Control Comfort Unit Module BCM Unit ECU 4F0907289G

Product currently unavailable

Part no. 8657337

Starter Motor BMW F90 M5 G11 G30 Petrol Engine Starter Actuator DENSO 8657337

Product currently unavailable

Part no. 04L907445-1

VW Transporter T6 2.0 TDI CXGB 102HP Engine Control ECU Kit 04L907445 Manual

Product currently unavailable

Part no. A0025424019

Mercedes W906 W907 Cut Off Electric Relay Module Wiring Cable A0025424019

Product currently unavailable

Part no. A2055405626

Mercedes W205 C350e Hybrid Electric Drive Battery High Voltage Wiring Harness

Product currently unavailable

Part no. A2079014200

Airbag Module Mercedes W207 C207 Coupe Air Bag SRS Control Unit ECU A2079014200

Product currently unavailable

Part no. A9075409885

Mercedes W907 Positive Battery Wiring Harness Cable A9075409885

Product currently unavailable

Part no. 9144846

Mini Cooper R57 Cabrio Convertible Wiring Loom Harness Rear Trunk Lid 9144846

Product currently unavailable

Part no. 6904012

BMW 3 5 7 X5 Series E38 E39 E46 E53 Rain Light Sensor Windscreen Wiper 6904012

Product currently unavailable

Part no. 6922720-1

BMW X5 E38 E39 E46 E53 GPS Navigation System Computer Unit 6922720 DAMAGE

Product currently unavailable

Part no. 7577968-3

BMW E60 E61 E90 E91 E92 N52 325i 525i Engine Control Unit ECU DME 7577968 Manual

Product currently unavailable

Part no. 6923945

BMW 5 6 SERIES E60 E60N E61 E61N E63 B terminal point engine compartment 6923945

Product currently unavailable

Part no. A0025428918

Mercedes-Benz C M Class W163 W203 ESP Yaw Rotation Rate Sensor A0025428918

Product currently unavailable

Part no. 7952885-2

BMW F22 218i B38 136HP Engine Control Unit ECU DME Kit 7952885 Manual

Product currently unavailable

Part no. 5B5A0F1

BMW F70 F74 X2 U10 X1 U11 Air Control Module Unit 5B5A0F1

Product currently unavailable

Part no. 02T911023R

VW Polo 6R Seat Ibiza Mk4 Starter Motor Bosch 1.2 Petrol CGPB 02T911023R

Product currently unavailable

Part no. 9315684

BMW F20 F21 F30 F31 F32 Body Control Comfort Module Unit FEM ECU LR01 9315684

Product currently unavailable

Part no. A2465403803-1

Mercedes W117 W156 W176 W242 W246 Electrical Fuse Relay Box A2465403803

Product currently unavailable

Part no. 8385157-1

BMW X3 3 Series E46 E83 LCI 1 Start Point Housing Bracket Base B 8385157

Product currently unavailable

Part no. 03L907309AE-2

VW Volkswagen Passat B7 2.0 TDI Engine Control ECU 170HP CFGB 03L907309AE Manual

Product currently unavailable

Part no. 281006430084

Toyota RAV4 Diesel Starter Motor Engine Actuator DENSO 28100-64300-84

Product currently unavailable

Part no. 237104376R

Mercedes Citan W415 109 CDI OM607.951 Engine Control Unit ECU 237104376R Manual

Product currently unavailable

Part no. 4G8971365M

Audi A7 4G Seat Cable Front Left Right N/O/S Wiring Loom Harness 4G8971365

Product currently unavailable

Part no. 9225771

BMW Z4 Series E89 Front Bumper PDC Loom Cables Wiring Set 9225771

Product currently unavailable

Part no. 9221713

BMW F01 Front Bumper PDC Wiring Loom Cable Harness F02 9221713 9221712

Product currently unavailable

Part no. A2139002022

Door Module Mercedes W213 C238 Front Left N/S Control Unit ECU A2139002022

Product currently unavailable

Part no. 1K0971120CH

Volkswagen Golf 1K Door Wiring Harness Loom Cable Front Drivers Side 1K0971120CH

Product currently unavailable

Part no. 7L5035738

Porsche Cayenne 9PA Rear Door Treble Speaker Audio Unit Right O/S 7E0035411B

Product currently unavailable

Part no. DM5T-19A164-AA

Ford Focus Mk3 AUX Connector Adapter Port Socket Outlet DM5T-19A164-AA

Product currently unavailable

Part no. A2038700026

Mercedes W203 ECU Control Unit Crash Impact Sensor Module Airbag A2038700026

Product currently unavailable

Part no. 1KM955557

Volkswagen Golf Mk6 Front Crash Impact Sensor Module Left Right N/O/S 1KM955557

Product currently unavailable

Part no. A6461503272

Mercedes W211 E220 CDI 646.821 170HP Engine Unit ECU Kit A6461503272 Key Lock

Product currently unavailable

Part no. 9475146

BMW F20 F21 F22 F23 F30 Rain Light Sensor Windscreen Wiper 9475146

Product currently unavailable

Part no. 7565300-21

BMW E87 E90 118i 318i N46 129HP Engine Control ECU DME Kit 7565300 Automatic

Product currently unavailable

Part no. Q0013786V003

Smart Roadster W452 Aerial Antenna Rod Radio Antenna Unit Q0013786V003

Product currently unavailable

Part no. 7856775

Injection Wiring BMW F90 M5 F91 M8 S63M Cyl. 5-8 Loom Valve Ignition 7856775

Product currently unavailable

...

Showing 14851-14949 of 18495 products