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

Volkswagen Tiguan 5N BCM Body Module Control Unit 5K0937086Q

Product currently unavailable

Part no. 9G9T-14240-HBB

Ford Mondeo Mk4 Door Wiring Harness Loom Cable Rear Right O/S 9G9T-14240-HBB

Product currently unavailable

Part no. A1405403481

Parktronic Mercedes Sprinter W901 W903 Front Bumper PDC Wiring Loom Harness

Product currently unavailable

Part no. 7610011-2

Mini Cooper S R56 R57 N14 1.6 ECU Control Unit Kit DME 7610011 CAS3 Key Manual

Product currently unavailable

Part no. 9134479-1

BMW E93 Body Control Module Junction Box ECU PL2 JBBFE H1 9134479

Product currently unavailable

Part no. 3457433

Mini Cooper R56 R57 LCI R58 R59 R60 CD Radio Audio Player Control Unit 3457433

Product currently unavailable

Part no. 04L907309L

Audi A4 B9 2.0 TDI DETA Quattro Engine Control Unit ECU 04L907309L Automatic

Product currently unavailable

Part no. A1715450101

Mercedes SLK R171 Fuse Box SAM Relay Control Unit Module A1715450101

Product currently unavailable

Part no. 4KE907107AC

Audi A6 C8 Front Camera Driver Assistance Control Unit Module zFAS 4KE907107AR

Product currently unavailable

Part no. 4868429AD

Chrysler Voyager 2.8 CRD ENR Engine Alternator Generator 4868429AD

Product currently unavailable

Part no. 6841692

BMW F20 Head Unit Navigation GPS Sat Nav Infotainment DAB High F10 F30 6841692

Product currently unavailable

Part no. 06J903023B

Audi Q3 8U Petrol Alternator Generator 14V 140A 06J903023B

Product currently unavailable

Part no. A2661531491-4

Mercedes W169 A160 266.920 95HP Engine Control Unit ECU Kit A2661531491 Key Lock

Product currently unavailable

Part no. 3455235

Mini Cooper R56 Fuse Box SPEG High DC/DC H4 3455235

Product currently unavailable

Part no. 6941589

BMW E60 Light Control Module Unit Lear LM E6X MAN.LWR Lear 6941589

Product currently unavailable

Part no. 8716602

BMW G20 Front Door Wiring Loom LED Light Harness Passenger Side 8716602

Product currently unavailable

Part no. AB39-12A650-DF

Ford Ranger Mk6 2.2 TDCI 4x4 150HP Engine Control ECU AB39-12A650-DF Manual

Product currently unavailable

Part no. 9153780

BMW E93 Footwell ECU Light Control Unit Module FRM II PL2 Lear 9153780

Product currently unavailable

Part no. A2038206489

Mercedes W203 Aerial Antenna Amplifier Module Unit A2038206489

Product currently unavailable

Part no. DV4T-15K866-AK

Ford Focus Mk3 PDC Parking Sensor Control Unit Module DV4T-15K866-AK

Product currently unavailable

Part no. 8J32-148006-AA

Range Rover Sport L494 Front Impact Crash Sensor Control Unit 8J32-148006-AA

Product currently unavailable

Part no. A1725404809

Mercedes R172 Wiring Cable Harness Front Passenger Door Wiring Loom A1725404809

Product currently unavailable

Part no. 2251619

Ford Focus MK3 Fiesta Mk6 Alternator Generator 1.5 TDCi Engine AV6N-10300-DC

Product currently unavailable

Part no. 8470176-4

Mini Cooper D F55 F56 B37 1.5 116HP Engine ECU Kit DME BDC + Key 8470176 Manual

Product currently unavailable

Part no. 9268752

Control Unit BMW F01 F02 F07 F10 F11 CAS4 Key Reading Module 9268752

Product currently unavailable

Part no. 8092797

Engine Wiring BMW F87 M2 F82 F83 M4 S55 Loom Module Harness Cable 8092797

Product currently unavailable

Part no. 5C0035680G

VW Scirocco Mk3 Multimedia Head Unit MIB2 Sat Nav 6,33" Screen 5C0035680G

Product currently unavailable

Part no. 8378339

BMW 3 Series E46 Cable Loom Door Rear Left Right N/O/S Wiring Harness 8378338

Product currently unavailable

Part no. 8517727-1

Mini Cooper SD R56 LCI R60 143HP N47N Engine ECU Kit DDE 8517727 + CAS3 + Key

Product currently unavailable

Part no. 9193753-1

BMW E81 E87 LCI Board Monitor Central Information Display 6,5" 9193753

Product currently unavailable

Part no. 3D0907040H

VW Volkswagen Phaeton 3D Climate Air Conditioning Control Module Unit 3D0907040H

Product currently unavailable

Part no. 5QA919283A

Audi A3 S3 8V VW Golf 7 Seat Leon 3 Parking Assist PDC Control Module 5QA919283A

Product currently unavailable

Part no. 6948335

BMW 1 X1 Series E81 E84 E87 RR1 Battery Lead Cable Negative IBS 6948335

Product currently unavailable

Part no. 1097170

Land Rover Range Rover L322 Air Suspension Control Module Unit ECU 1097170

Product currently unavailable

Part no. 03L906022MK

Audi A4 B8 2.0 TDI Diesel CAGA 143HP Engine Unit ECU 03L906022MK Automatic

Product currently unavailable

Part no. A1669007409

Mercedes GLE W166 Front Door Wiring Control Module Left N/S Unit ECU A1669007409

Product currently unavailable

Part no. DPLA-70718-CV

Land Rover Discovery Sport L550 Telematics Control Module Unit DPLA-70718-CV

Product currently unavailable

Part no. 8W1907064BL

Audi A4 B9 Body Control Module BCM Comfort Control Unit Power Supply 8W1907064BL

Product currently unavailable

Part no. 7581123-1

BMW E81 E87 LCI 130i N52N 258HP Engine ECU Kit DME 7581123 + CAS3 + Key Manual

Product currently unavailable

Part no. A0015422623

PDC Display Mercedes W639 Front Parking Sensor Screen Control Unit A0015422623

Product currently unavailable

Part no. 4F0907468D

Audi A6 C6 Diagnostic Interface Gateway Control Module Unit ECU 4F0907468D

Product currently unavailable

Part no. 9811263

Mini Cooper R60 Wiring Loom Front Door Cables Passenger Side 9811263

Product currently unavailable

Part no. 8576341-2

BMW F20 F21 F30 F31 116d 316d 116HP N47N ECU Kit DDE 8576341 + Key + FEM

Product currently unavailable

Part no. 4L0907289C

Audi Q7 4L Quattro S Line Comfort Module Convinience Control Unit 4L0907289C

Product currently unavailable

Part no. G2412-154530-B

VW Amarok Mk2 Headlight Headlamp Control Unit Module Sensor G2412-154530-B

Product currently unavailable

Part no. 8614302-6

BMW F20 N13B16A 116i N13 Engine Control ECU 1.6 Petrol 136HP Automatic 8614302

Product currently unavailable

Part no. 8K0907063DC

Audi A5 8T Body Control Comfort Unit Module BCM Unit ECU 8K0907063DC

Product currently unavailable

Part no. 8648003

BMW F20 F30 F31 LCI Earth Cable Battery Cable 8648003 12428648003

Product currently unavailable

Part no. 6929950

BMW 5 Series E60 E61 E63 E64 LCI CD Changer Magazine 6929950

Product currently unavailable

Part no. 7493232

Led Indicator Module BMW F32 F33 F36 F80 F82 F83 Light Signal Blinker 7493232

Product currently unavailable

Part no. A2118700726

Mercedes W211 Seat Memory Control Unit Module Front Right O/S A2118700726

Product currently unavailable

Part no. 3G9971104

VW Volkswagen Passat B8 3G Rear Bumper PDC Parking Sensor Wiring Loom 3G9971104

Product currently unavailable

Part no. A1645400272-1

Mercedes W164 W251 Fuse Box Control Unit Module Relay A1645400272

Product currently unavailable

Part no. 4104215

BMW X5 Series E53 PDC Parking Control Module Unit PDC 4104215

Product currently unavailable

Part no. 9136874

Mini Cooper R55 R56 R60 CAS 3 ECU Control Unit Key Reading Module 9136874

Product currently unavailable

Part no. 9222874

BMW E60 E61 Professional Navigation System CIC Sat Nav Controller 9222874

Product currently unavailable

Part no. 4F9910401-1

Audi A6 C6 3.0 TDI ASB 232HP Engine Control Unit ECU Kit 4F9910401 Automatic

Product currently unavailable

Part no. 8517727

Mini Cooper D R60 N47N Engine Control Unit ECU 8517727 Manual

Product currently unavailable

Part no. A2229067403

Mercedes W177 W247 M260 Exhaust Control Valve Flap Actuator Drive A2229067403

Product currently unavailable

Part no. 9393675

BMW X3 F25 Body Control Module ECU Junction Box JBBFE III 3 V8 Lear 9393675

Product currently unavailable

Part no. A0005400950

Fuse Box Mercedes Sprinter W901 W902 W903 W904 Relay Control Unit A0005400950

Product currently unavailable

Part no. BM5T-18B955-CG

Ford Focus Mk3 Radio Display Screen Stereo Head Unit BM5T-18B955-CG

Product currently unavailable

Part no. 9687656980

Citroen C3 Picasso Negative Battery Terminal Cable Wiring Lead 9687656980

Product currently unavailable

Part no. FR3T-18808-BA

Ford Mustang GT Mk6 Dashboard Audio Speaker Tweeter FR3T-18808-BA

Product currently unavailable

Part no. 8518167

BMW E81 E87 E90 LCI 118d 318d N47 ECU Engine Control Kit DDE 8518167 Automatic

Product currently unavailable

Part no. LR033063

Range Rover Evoque L538 Battery Positive Wiring Harness 2.2 TDCI BJ32-14A280-AD

Product currently unavailable

Part no. 9824925

Mini F55 F56 F60 LCI Navigation Touch Screen 8.8" Display Nav Head Unit 9824925

Product currently unavailable

Part no. 9337218

BMW M4 F82 F83 Front Door Wiring Loom Harness Cable Passenger Side 9337218

Product currently unavailable

Part no. 5F0919604A

Head Unit Seat Ibiza 6J Leon 5F Audio Radio Player Sat Nav Navigation 5F0919604A

Product currently unavailable

Part no. 6960223

Airbag Module BMW E65 E66 Sensor Driver's Side Air Bag Control Unit 6960223

Product currently unavailable

Part no. 5M0907357F

VW Volkswagen Passat B7 Headlight Range Control Unit Module ECU 5M0907357F

Product currently unavailable

Part no. 24435922

GM Vauxhall Opel Relay 4-Pin Multi Use Glow Plug Unit Black Set 24435922

Product currently unavailable

Part no. MB3T-14C574-PFB

Volkswagen Amarok NF Ford Ranger T9 Body Cable Wire Harness MB3T-14C574-PFB

Product currently unavailable

Part no. 8572874

BMW F10 F11 535d N47S1 218HP Engine Control Unit ECU DDE 8572874 Automatic

Product currently unavailable

Part no. A2218700693

Mercedes W221 Navigation CD DVD Player Changer Unit A2218700693

Product currently unavailable

Part no. A0305452632

Mercedes ML W163 270 CDI Automatic Transmission Control Module A0305452632

Product currently unavailable

Part no. 4K5971104AP

Audi A6 C8 Rear Bumper PDC Parking Sensor Wiring Harness Loom 4K5971104AP

Product currently unavailable

Part no. 8512499-6

BMW X1 E84 18dX N47 ECU Engine Control Unit Kit DDE 8512499 CAS3 + Key Manual

Product currently unavailable

Part no. 8507924

Gearbox Wiring BMW F20 F30 125d 325d N47S1 Engine Loom Harness Cables 8507924

Product currently unavailable

Part no. 8671504-1

Starter BMW G20 G21 G30 G32GT G01 G05 Starter Motor Valeo 8671504

Product currently unavailable

Part no. 7276384

BMW F10 F11 F01 Control Unit Module ECU Fuel Pump 7276384

Product currently unavailable

Part no. 8519009-3

BMW X1 E84 20dX Diesel N47N 184HP Engine Control Unit ECU DDE 8519009 Automatic

Product currently unavailable

Part no. 6977724-2

BMW E87 Xenon Footwell Light Module Control Unit ECU PL2 FRMFA 6977724

Product currently unavailable

Part no. A0009051302

Mercedes W166 W176 W246 Radar Sensor Front Control Unit Module A0009051302

Product currently unavailable

Part no. A4518201485

Smart Fortwo 451 Air Module Control Unit ECU A4518201485

Product currently unavailable

Part no. 8T2035186P-1

Audi A4 B8 Radio Media Player Audio CD Head Unit Player Concert 8T2035186P

Product currently unavailable

Part no. 8X0919475Q

Audi Q3 8U PDC Parking Distance Assistant Control Unit Module ECU 8X0919475Q

Product currently unavailable

Part no. 5A4E600

Mini Countryman F60 Audio Amplifier Hifi Unit Active Sound Design System 5A4E600

Product currently unavailable

Part no. 8E0837220Q-1

Remote Key Audi A4 S4 B7 8E Radio Alarm Key Fob Opener Button 8E0837220Q

Product currently unavailable

Part no. 03E906023AL-2

Volkswagen Polo 6R 1.2 MPI CGPB 60HP Engine Control ECU Kit 03E906023AL Manual

Product currently unavailable

Part no. 4L0907357B

Audi Q7 4L Headlight Level Range Adjustment Module Control Unit 4L0907357B

Product currently unavailable

Part no. A2821503400

Mercedes W177 Turbo Engine Wiring Warness Loom A2821503400

Product currently unavailable

Part no. A2128205313

Mercedes W212 Front Left Right N/O/S Seat Wiring Loom Cable Harness A2128205313

Product currently unavailable

Part no. A2129068800-2

Mercedes W212 Radio Head Unit COMAND Navi CD DVD Player Control Unit A2129068800

Product currently unavailable

Part no. 9G9T-14B533-VC

Ford S-Max Mondeo Mk4 Door Module Control Unit Passenger Side 9G9T-14B533-VC

Product currently unavailable

Part no. A2135402405

Mercedes W213 Brake Wear Indicator Wiring Harness Front Right O/S A2135402405

Product currently unavailable

Part no. A9069006102

Mercedes Sprinter W906 Radio CD Player Audio Stereo Head Unit A9069006102

Product currently unavailable

Part no. 03L907425C

VW Passat Variant PA 1.6 TDI Diesel Blue Motion Engine Control ECU 03L907425C

Product currently unavailable

Part no. AB39-12B681-AB

Ford Ranger Mk3 Glow Plug Relay Module With Mount AB39-12B681-AB

Product currently unavailable

...

Showing 14356-14454 of 22739 products