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

Ford S-Max Mondeo Mk4 Keyless Entry Comfort Control Module 7S7T-19G481-CE

Product currently unavailable

Part no. 3Q0959655CM

Seat Ateca Air Module Control Unit ECU Module Sensor 3Q0959655CM

Product currently unavailable

Part no. 9874338-1

BMW F20 F21 F22 F30 F31 Head Unit Basic Media Navigation Headunit 9399427

Product currently unavailable

Part no. 7577968-5

BMW E60 E90 Z4 E85 N52 323i 523i 177HP Engine Control ECU DME Kit 7577968 Manual

Product currently unavailable

Part no. 6881474

BMW F01 F07 F10 F11 Tyre Pressure RDC Control Unit Module 6857938

Product currently unavailable

Part no. 4G5971085AF

Audi A6 C7 Rear Bumper Parking Sensor PDC Wiring Harness Loom Cable 4G5971085AF

Product currently unavailable

Part no. KK3T-14F642-AC

Ford Transit Custom Data Link Connection Module KK3T-14F642-AC

Product currently unavailable

Part no. 7P6035670E

VW Volkswagen Touareg 7P CD Radio Stereo Head Unit Panel 7P6035670E

Product currently unavailable

Part no. A2059008430

Head Unit Mercedes C205 Radio Player USB Sat Nav Harman A2059008430

Product currently unavailable

Part no. 1430940-1

BMW E46 318i M43 118HP Engine Unit ECU Kit DME 1430940 EWS3 Key Manual

Product currently unavailable

Part no. A0015422623-1

Mercedes Vito W639 Parking Sensor Warning Device Display A0015422623

Product currently unavailable

Part no. 9346273

BMW F15 Kafas Camera Lane Assist Module Control Unit ECU 9346273

Product currently unavailable

Part no. 9167397-1

Mini Cooper R57 R58 R59 Microphone Hands Free Telephone 9167397

Product currently unavailable

Part no. 8V4971036J

Audi A3 8V Front Door Wiring Harness Cable Passenger Side 8V4971036

Product currently unavailable

Part no. A2389007704

Communication Module Mercedes W205 W213 C253 Hermes LTE Control Unit A2389007704

Product currently unavailable

Part no. 8510592

BMW E81 E87 E90 LCI 118d 318d N47 143HP ECU Control Unit DDE 8510592 Manual

Product currently unavailable

Part no. 575035736

Seat Ateca Double USB C Charging Port Socket Connection Module 575035736

Product currently unavailable

Part no. 9203081-2

BMW 5 Series E60 LCI Light Control Unit Module LEAR LM II E6X LWR 9203081

Product currently unavailable

Part no. A6394408537

Mercedes W639 Front Bumper PDC Wiring Parking Sensor Loom Harness A6394408537

Product currently unavailable

Part no. 2K0035279C

Volkswagen Tiguan 5N Sat Navi Stereo Radio Audio Head Unit CD Player 2K0035279C

Product currently unavailable

Part no. A1649063500

Mercedes ML W164 Head Unit Sat Nav GPS CD Audio Radio Player A1649063500

Product currently unavailable

Part no. 03L907309M

Volkswagen Transporter T5 2.0 TDI CAAB 102HP Engine Unit ECU 03L907309M Manual

Product currently unavailable

Part no. 8513249-2

BMW X3 F25 Engine Control Unit N47N 2.0 Diesel 184HP ECU DDE Manual 8513249 Kit

Product currently unavailable

Part no. 8K0907064EB

Audi A5 8T Body Control Comfort Unit Module BCM Unit ECU 8K0907064EB

Product currently unavailable

Part no. 1138730-2

BMW X5 E70 X6 E71 Onboard Monitor Sat Nav System Display Screen 8,8" 1138730

Product currently unavailable

Part no. 7789980-1

BMW E46 Alternator Generator Diesel Engine M47N M57N 150A Lucas LRA02891

Product currently unavailable

Part no. 8V41-13405-AH-2

Ford Kuga C394 Rear Light Outer Taillight Left Cable Wire Plug N/S 8V41-13405-AH

Product currently unavailable

Part no. 8571039

Engine Wiring BMW F20 F21 LCI B37 Injector Loom Harness Cable Module 8571039

Product currently unavailable

Part no. A2139009022

SRC Module Mercedes W213 Air Safety Module SRS Control Unit ECU A2139009022

Product currently unavailable

Part no. A2479001506

Mercedes C118 W177 W247 Body Control Module BCM V2 A2479001506

Product currently unavailable

Part no. 7823755

Engine Module Wiring BMW F07 GT F10 F11 Diesel N57N Injectors Harness 7823755

Product currently unavailable

Part no. 6904905

BMW E65 E66 Battery Cable Positive Plus Pole 6904905

Product currently unavailable

Part no. A1329002500

Smart C451 Engine Control Unit ECU 1.0 Petrol M132.910 71HP A1329002500 Manual

Product currently unavailable

Part no. HR3T-14G370-KFA

Ford Mustang GT Mk6 Sat Nav Multimedia Display Screen HR3T-14G370-KFA

Product currently unavailable

Part no. A4159064900

Alternator Generator Mercedes W415 OM607 Diesel Engine 150A 14V 231004554R

Product currently unavailable

Part no. 7P0959655E

Volkswagen Touareg 7P Air Module ECU Control Module Unit 7P0959655E

Product currently unavailable

Part no. A0131540602

Alternator Generator Mercedes W221 OM642 Diesel Engine 220A A0131540602 11304N

Product currently unavailable

Part no. 4H0919604G

Audi A8L 4H Head Up Display Hud Project Screen Control Unit Module 4H0919604G

Product currently unavailable

Part no. 9229872-2

BMW E92 LCI Body Control Module ECU Junction Box L1 PL2RR JBBFE IIIR 9229872

Product currently unavailable

Part no. 8579785

BMW F20 F30 125d 325d N47S1 218HP Engine Control Unit ECU DDE 8579785 Manual

Product currently unavailable

Part no. 6942637

BMW 5 Series E60 M-Audio System Controller Navigation Head Unit 6942637

Product currently unavailable

Part no. 9165211

Display Screen BMW E65 E66 Dash Information Navigation Monitor 8,8" 9165211

Product currently unavailable

Part no. A2469005413-1

Mercedes C117 Head Unit Radio Player Control Module Becker A2469005413

Product currently unavailable

Part no. 5G0971104S

Volkswagen Golf Mk7 Rear Bumper PDC Parking Sensor Wiring Loom 5G0971104S

Product currently unavailable

Part no. A1765401101

Mercedes W176 A45 Multimedia Box Wiring Loom Harness A1765401101

Product currently unavailable

Part no. 7L5937049AA

Porsche Cayenne 955 Comfort Control Unit Module ECU 7L5937049AA

Product currently unavailable

Part no. 6917549

Mini Cooper R50 R52 R53 Rear Bumper PDC Ultrasonic Sensor Cosmos Black - 303

Product currently unavailable

Part no. 9243916

BMW E81 E87 E90 E91 E92 E93 LCI Radio CD Professional 9243916

Product currently unavailable

Part no. 23710JD78E

Nissan Quashqai M9R Diesel Engine Control ECU Manual Gearbox 23710 JD78E

Product currently unavailable

Part no. 237103984R

Renault Trafic 3 R9M 450 1.6 DCI Diesel Engine Unit ECU 237103984R Manual

Product currently unavailable

Part no. 8689723-2

BMW F20 F21 LCI M140i B58 Petrol ECU Control Unit Module DDE 8689723 Manual

Product currently unavailable

Part no. 9084681

BMW F45 F46 X3 F25 X5 F15 Rear View Camera Reversing Camera Unit 9084681

Product currently unavailable

Part no. 7799854-1

BMW 1 3 Series E87 E90 M47N2 118d 318d 122HP ECU KIT DDE + CAS2 + Key 7799854

Product currently unavailable

Part no. 7N0959793E

VW Volkswagen Sharan 7N Driver's Side Door ECU Module Control Unit 7N0959793E

Product currently unavailable

Part no. 9286113

BMW F20 F21 F22 F30 F32 FEM Module ECU Control Unit Fuse Box 9286113

Product currently unavailable

Part no. A2139053303

Mercedes W213 Dashboard Switch Panel A2139053303

Product currently unavailable

Part no. 6500CW

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

Product currently unavailable

Part no. 6920822

BMW X5 Series E53 Body Control Module Unit ECU GM III 61356920822 6920822

Product currently unavailable

Part no. 5Q4959593M

Seat Leon Mk3 Door Module Control Unit Front Driver's Side Door 5Q4959593M

Product currently unavailable

Part no. 06J906026AR

Volkswagen Scirocco Mk3 2.0 TFSI CAWB 200HP Control ECU Kit 06J906026AR Manual

Product currently unavailable

Part no. 8512500

BMW E81 E82 E87 LCI E88 123d N47S 204HP Engine Unit ECU DDE 8512500 Manual

Product currently unavailable

Part no. 8W0035192G

Audi A4 B9 Navigation Radio CD Player Head Unit Central Computer 8W0035192G

Product currently unavailable

Part no. CC1T-10C652-AB

Ford Transit Mk8 Negative Battery Terminal Sensor Control Unit CC1T-10C652-AB

Product currently unavailable

Part no. 4G0035711

Audi A6 S6 C7 Hands Free Microphone Module 4G0035711

Product currently unavailable

Part no. 8W1959593J

Audi Q5 FY Door Control Module Unit ECU Front Driver's Side 8W1959593J

Product currently unavailable

Part no. A1645403572

Mercedes ML W164 W251 Fuse Box Relay Module Control Unit A1645403572

Product currently unavailable

Part no. 8512415-5

Mini Cooper D R56 LCI N47N 112HP Engine ECU Kit DDE 8512415 CAS3 Key Automatic

Product currently unavailable

Part no. 8514831

Engine Wiring BMW F30 F31 F32 F36 LCI 330d 430d N57N Loom Harness Cable 8514831

Product currently unavailable

Part no. 3450280

Mini Cooper One R56 Footwell Light Module High ECU PL3 FRM II 3450280

Product currently unavailable

Part no. YWC000785

Range Rover Velar L560 Seat Memory Control Module Unit ECU YWC000785

Product currently unavailable

Part no. A6461505091-1

Mercedes C209 CLK220 CDI 646.966 Engine ECU Kit A6461505091 Keys Lock Automatic

Product currently unavailable

Part no. 8589145-20

BMW F31 LCI Engine Control Unit ECU 163HP B47 B47D20A Manual Diesel 8589145

Product currently unavailable

Part no. 7P0915181A

Porsche Cayenne 92A Battery Negative Ground Cable Wiring Earth Line 7P0915181A

Product currently unavailable

Part no. BENZB2007005

Mercedes W169 W245 Hizpo Head Unit Navigation Multimedia Screen 7" GPS Android

Product currently unavailable

Part no. BM5T-18C815-HK

Ford Focus Mk3 Radio Head Unit CD Player Stereo Audio Unit BM5T-18C815-HK

Product currently unavailable

Part no. A2098205926

Mercedes CLK C209 Body Control Module Unit A2098205926

Product currently unavailable

Part no. A6429002900-7

Mercedes W204 C350 CDI OM642.830 Engine Module ECU Kit A6429002900 Key + Lock

Product currently unavailable

Part no. 3C8907801A

Volkswagen Passat CC Parking Brake Module Control Unit ECU 3C8907801A

Product currently unavailable

Part no. A6398200942

Mercedes-Benz Vito W639 Radio Fan Adapter Control Unit Module A6398200942

Product currently unavailable

Part no. 4G0959754K

Audi A6 C7 Ignition Smart Key Fob Lock Remote Alarm Button Control 4G0959754K

Product currently unavailable

Part no. 5J0035161G

Skoda Fabia 5J Roomster 5J Radio CD Player Head Unit Swing 5J0035161G

Product currently unavailable

Part no. 9267200

BMW 1 Series E82 ECU Body Control Module Junction Box L1 PL2RR JBBFE 9267200

Product currently unavailable

Part no. 8638552

Supply Module BMW F90 M5 F91 M8 G05 G11 G30 Integrated Control Unit 8638552

Product currently unavailable

Part no. 5B31359

BMW i4 G26 Fuse Box Front Body Control Module ECU BCM Unit 5B31359

Product currently unavailable

Part no. 3D0909601D

Porsche Cayenne 955 9PA Air Module Control Unit ECU SRS 3D0909601D

Product currently unavailable

Part no. 6957026

BMW E65 E66 Control unit power ECU module 6957026

Product currently unavailable

Part no. 9290014

BMW X3 F25 Light Module Control Footwell ECU Unit FRM3 9290014

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. 03E906023Q

Skoda Fabia 5J 1.2 CGPA 69HP Engine Control Unit ECU Kit 03E906023Q Manual

Product currently unavailable

Part no. A1635402209

Mercedes-Benz M ML W163 Rear Bumper Parktronic Wiring Loom Harness A1635402209

Product currently unavailable

Part no. A1031550435

Mercedes W124 M103 Bracket Alternator Mount Holder Support A1031550435

Product currently unavailable

Part no. 3Q0959655AQ

Skoda Octavia 5E Air Module Control Unit ECU Module Sensor 3Q0959655AQ

Product currently unavailable

Part no. A1695406945

Mercedes SLK R171 Gateway Control Unit Gateway Module ECU A1715405145

Product currently unavailable

Part no. 038906016AJ

VW Volkswagen Transporter T5 1.9 TDI Diesel Engine Control Unit ECU 038906016AJ

Product currently unavailable

Part no. 1568581

Ford Fiesta MK7 Air Module ECU Control Module Crash Sensor 1568581

Product currently unavailable

Part no. 9308292

BMW 3 Series F30 F31 Battery Cable Wire Lead Positive Underfloor 9259326

Product currently unavailable

Part no. 9894912-4

BMW F30 LCI 320i B48 Engine Control Unit DME ECU Kit FEM + Key 9894912 Automatic

Product currently unavailable

Part no. 8K0907064FF

Audi A4 S4 B8 Body Control Comfort Unit Module BCM2 Unit ECU 8K0907064FF

Product currently unavailable

Part no. 9805343480

Citroen Relay III Alternator Generator Valeo 9805343480

Product currently unavailable

...

Showing 16237-16335 of 22739 products