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

Mini Cooper S R55 R56 N14 1.6 174HP ECU Kit DME 7641003 CAS3 Key Manual

Product currently unavailable

Part no. 237103888R

Renault Trafic 3 R9M 1.6 DCI Engine Control Unit Module ECU 237103888R Manual

Product currently unavailable

Part no. YWC500210

Land Rover Freelander L314 Body Control Module Unit YWC500210

Product currently unavailable

Part no. 8699955

Engine Control Unit BMW F20 F21 F22 118i 218i B38 136HP ECU DME 8699955 Manual

Product currently unavailable

Part no. 9665205380

Peugeot 207 Negative Battery Terminal Cable Wiring Electrical Cable 9665205380

Product currently unavailable

Part no. 8378107

BMW X5 Series E53 Electrical Power Distribution Fuse Box 8378107

Product currently unavailable

Part no. 8598759

BMW F20 F30 LCI Diesel B37 B47 ECU DDE Engine Control Unit 8598759 Automatic

Product currently unavailable

Part no. 9268478

BMW F20 F21 F30 F31 Driver Assist ACC Lane Change Switch Button Panel 9268478

Product currently unavailable

Part no. 8C1T14A073BG

Ford Transit MK7 Fuse Box Body Control Module ECU BCM Unit 8C1T14A073BG

Product currently unavailable

Part no. A2909003001-1

Mercedes C238 Transfer Case Torque Distribution Control ECU E53 4matic

Product currently unavailable

Part no. A2469001317

Mercedes-Benz A B W176 W246 160 180 CDI Transmission Control Unit Module ECU

Product currently unavailable

Part no. A2059009427

Mercedes W205 Front Air Module SRS Control Unit ECU A2059009427

Product currently unavailable

Part no. 5Q0937125G-1

Seat Ateca Audi Q3 Mk2 TT 8S Fuse Relay Box Engine Bay Supply Unit 5Q0937125G

Product currently unavailable

Part no. A4539018900

Smart ForTwo C453 Air Module Impact SRS Control Module ECU A4539018900

Product currently unavailable

Part no. 7558220

BMW E82 E90 E91 E92 N54 135i 335i Alternator Generator 180A 7558220

Product currently unavailable

Part no. 8G92-15K866-AA

Ford Mondeo Mk4 PDC Parking Sensor Control Unit Module 8G92-15K866-AA

Product currently unavailable

Part no. 8645325-2

BMW F20 F21 F30 F31 LCI F32 F33 F34 Alternator Petrol Engine Unit 180A 8645325

Product currently unavailable

Part no. A0061517401-1

Mercedes Sprinter W906 Diesel Starter Motor Engine Valeo A0061517401

Product currently unavailable

Part no. CH22-14F667-AJ

Land Rover Discovery 4 L319 Display Screen Unit Module Dashboard CH22-14F667-AJ

Product currently unavailable

Part no. 079911022

Audi A4 S4 B8 A5 S5 8F Engine Starter Motor 3.0 TFSI Petrol 079911022

Product currently unavailable

Part no. 6905491

Airbag Module BMW E46 X5 E53 Control Unit ECU Side Air Bag 6905491

Product currently unavailable

Part no. 9314837

Wiring BMW X5 F15 M Sport Rear Park Assist PDC Wiring Harness Loom 9314837

Product currently unavailable

Part no. A1729006503

Mercedes SLK R172 Roadster Folding Roof Module Vario Control Unit A1729006503

Product currently unavailable

Part no. 5Q0035456A

Volkswagen Golf Mk7 Dynaudio Audio Amplifier Sound System 5Q0035456A

Product currently unavailable

Part no. 9132539

BMW 1 3 Series E81 E87 E90 E91 Hands-free Electronics Charging MULF2 9132539

Product currently unavailable

Part no. A2085405706

Mercedes-Benz CLK W208 Front Left Right Door Wiring Loom Harness A2085405606

Product currently unavailable

Part no. 9314234

BMW F20 F21 F22 F30 F31 F32 Body Control Module Unit FEM ECU LR01 9314234

Product currently unavailable

Part no. 4H0907063DB

Audi A5 8T Body Control Comfort Unit Convenience Module BCM1 ECU 4H0907063DB

Product currently unavailable

Part no. 8K2907115S-1

Audi A4 B8 8K A5 8T 2.0 TFSI CDNB 180HP Engine Control ECU 8K2907115S Manual

Product currently unavailable

Part no. BM5T-18C815-HJ

Ford B-Max CD Player Stereo Audio Radio Head Unit BM5T-18C815-HJ

Product currently unavailable

Part no. 9278074-1

BMW X5 E70 Head Unit CIC DAB Professional Navigation System Controller 9278074

Product currently unavailable

Part no. 8E0910115H-1

Audi A4 B7 2.0 TFSI BGB Quattro 200HP Engine ECU Kit Ignition 8E0910115H + Keys

Product currently unavailable

Part no. 022906032GF-1

Porsche Cayenne 9PA 3.2 022Y 250HP Engine Control ECU Kit 022906032GF Automatic

Product currently unavailable

Part no. A2229008911

Tuner Box Mercedes W213 W205 W222 Digital Audio Control Unit DAB ECE A2229008911

Product currently unavailable

Part no. 7810001-1

BMW E81 E87 LCI E90 118d 318d N47 143HP Diesel ECU KIT DDE 7810001 CAS3 + Key

Product currently unavailable

Part no. 96665877ZD

Peugeot 3008 Head-Up Display Hud Project Dash Screen Control Unit 96665877ZD

Product currently unavailable

Part no. 4H0919604G

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

Product currently unavailable

Part no. A2035460180

Mercedes-Benz C-Class S203 W203 Cable Rail Guide Sensors ABS A2035460180

Product currently unavailable

Part no. 9399431

BMW F10 LCI F20 F21 F30 F31 DAB Bluetooth Head Control Unit Basic Module 9399431

Product currently unavailable

Part no. A9065450401

Fuse Box Mercedes W906 Front Relay Control Unit Electric Module A9065450401

Product currently unavailable

Part no. 8596362-1

BMW F20 F30 LCI B47 190HP Engine Control Unit ECU Kit DDE 8596362 Automatic

Product currently unavailable

Part no. 03P971612

VW Volkswagen Polo 5 1.2 TDI Engine Wiring Harness Loom Cable 03P971612

Product currently unavailable

Part no. A6399003101

Mercedes Vito W639 Door Module Front Left N/S Control Unit ECU A6399003101

Product currently unavailable

Part no. A1405400282

Mercedes C140 Fuse Box Relay Cover Lid Control Unit Bracket Trim A1405400282

Product currently unavailable

Part no. 7810950-2

BMW E70 3.0d M57N2 235HP Engine ECU KIT DDE 7810950 CAS3 Key Automatic

Product currently unavailable

Part no. A1569056800

Mercedes-Benz X156 Front Bumper Pressure Crash Impact Sensor A1569056800

Product currently unavailable

Part no. 4E0035670C

Audi A6 C6 A8 D3 Navigation Radio CD SD SIM Player MMI Head Unit 4E0035670C

Product currently unavailable

Part no. A1645400272-1

Mercedes W164 W251 Fuse Box Control Unit Module Relay A1645400272

Product currently unavailable

Part no. 3456393-1

Mini Cooper R60 ECU Footwell Light Module Unit AHL EKS PL3 FRM3R Lear 3456393

Product currently unavailable

Part no. 8610006-2

Mini Cooper S R56 LCI N18 1.6 184HP Engine ECU Kit DME 8610006 CAS3 Key Manual

Product currently unavailable

Part no. 7P6907273H

VW Volkswagen Touareg 7P Tyre Pressure Control Unit Module ECU 7P6907273H

Product currently unavailable

Part no. 3D0951253A-1

VW Volkswagen Audi Seat Skoda Relay Black 5 Pins 12V 50A Set 433 3D0951253A

Product currently unavailable

Part no. 7811700-11

BMW E60 LCI E87 E90 120d 320d 520d N47 177HP ECU KIT DDE 7811700 CAS3 Key Manual

Product currently unavailable

Part no. 03G906018FC-1

Volkswagen Golf 5 1K 2.0 TDI BMN 170HP Engine ECU Kit 03G906018FC 2 Key Ignition

Product currently unavailable

Part no. 8P7907115L-2

Audi A3 8P 1.8 TFSI CDAA 160HP Engine Module ECU Kit 8P7907115L Manual

Product currently unavailable

Part no. 4G5035223E

Audi A7 4G Bose Sound System Amplifier 4G5035223E

Product currently unavailable

Part no. 6957343

BMW 3 5 Series E60 E90 Dashboard Onboard Monitor Display Screen 8.8 CCC 6957343

Product currently unavailable

Part no. 057906051H-2

Audi RSQ3 F3 DPF Differential Pressure Sensor 2.5 TFSI 057906051H 83A131552F

Product currently unavailable

Part no. 7589971-7

Mini One R56 N12 1.4 95HP Petrol ECU Control Unit Kit DME 7589971 + CAS3 + Keys

Product currently unavailable

Part no. 8708259

BMW F20 F21 F30 F31 LCI G30 G31 G11 Navigation Head Unit Sat Nav High 2 8708259

Product currently unavailable

Part no. 8K5907357B

Audi A4 B8 A5 8T Front Lamp Headlight Range Control Module 8K5907357B

Product currently unavailable

Part no. 6C0959655J

Control Unit Seat Ibiza 6J VW Polo 6C 6R Air Module Unit ECU Bosch 6C0959655J

Product currently unavailable

Part no. 5WA980653C

Audi A3 S3 RS3 8Y Front Camera FAS Lane Assistance Control Unit 5WA980653C

Product currently unavailable

Part no. 9176685-1

BMW X3 Z4 E83 E85 Mini R50 R52 DVD GPS Navigation System Computer Unit DAMAGE

Product currently unavailable

Part no. A6421509478-2

Mercedes W164 ML320 4-Matic OM642.940 Diesel Engine Unit ECU Kit A6421509478 Key

Product currently unavailable

Part no. 9359014

BMW F25 Car Access Key Reading Module Control Unit ECU CAS4 CG+ELV 9359014

Product currently unavailable

Part no. 55582510

Vauxhall Opel Insignia A 2.0 CDTI Alternator Bracket Belt Tensioner 55582510

Product currently unavailable

Part no. 06D911023

Audi A4 7B 2.0 TFSi D6G519 Engine Starter Motor 06D911023

Product currently unavailable

Part no. 5Q0959655A

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

Product currently unavailable

Part no. 7811701-3

BMW E81 E87 LCI E90 118d 318d N47 Diesel ECU KIT DDE 7811701 CAS3 + Key Manual

Product currently unavailable

Part no. A2123200558

Mercedes W212 Valve Block AMG Air Suspension Control Unit Module A2123200558

Product currently unavailable

Part no. 8E0907307F

Audi A4 B8 Seat Exeo Servotronic Relay Control Unit 9 Pin 8E0907307F

Product currently unavailable

Part no. 9329799

BMW Z4 Series E89 ECU Body Control Module H4 Electronic Box 61359329799 9329799

Product currently unavailable

Part no. 1735752

BMW E36 Electrical Fuse Relay Box Covering Panel Trim Socket Petrol 1735752

Product currently unavailable

Part no. 9204536-1

BMW E90 Footwell Light Module ECU Control Unit PL2 FRM Lear 9204536

Product currently unavailable

Part no. 6C1T-12B637-CG

Ford Transit Mk7 2.4 TDCi Diesel Engine Wiring Loom Harness Cables 6C1T12B637CG

Product currently unavailable

Part no. A6421501500-1

Mercedes W639 120CDI OM642.990 Engine Control Unit ECU Kit A6421501500 Key Lock

Product currently unavailable

Part no. 7363091

Xenon Headlight Module BMW F22 F23 Control Unit Driver Module 7363091

Product currently unavailable

Part no. 8578944-2

BMW F20 120d F30 320d 184HP N47N Engine ECU Kit DDE 8578944 FEM Key Manual

Product currently unavailable

Part no. A2711505433

Mercedes R171 W203 Petrol Engine 271921 Wiring Harnes Loom A2711505433

Product currently unavailable

Part no. A0999000400

Steering Lock Mercedes W176 W246 Control Unit Module VST A0999000400

Product currently unavailable

Part no. 8H2210F845AA

Land Rover Discovery 3 L319 Bluetooth Phone Control Module 8H2210F845AA

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. 6987692

BMW E87 E90 Navigation System Professional CCC Navi Controller 6987692

Product currently unavailable

Part no. 3414876

BMW X3 Series E83 2.5i 3.0i M54 Battery Positive Power Cable Terminal 3414876

Product currently unavailable

Part no. 9675391480

Peugeot 3008 1.6 HDI T84 DV6-C Engine Control Unit Module ECU 9675391480 Manual

Product currently unavailable

Part no. 8510221-15

BMW E90 E91 LCI E92 330d Diesel N57 245HP ECU Engine Kit DDE 8510221 CAS3 + Key

Product currently unavailable

Part no. 4G0906093H

Audi A6 C7 A7 4G 3.0 TDI Fuel Pump Sender Control Relay Module ECU 4G0906093H

Product currently unavailable

Part no. 9224594-1

BMW E93 Footwell ECU Light Control Unit Module FRM3R PL2 Lear 9224594

Product currently unavailable

Part no. 9317174

BMW F30 REM Rear Electronic Module Fuse Box Control Unit V2 9317174

Product currently unavailable

Part no. A0345454332

Mercedes-Benz C Class W203 Automatic Gearbox Transmission Control A0345454332

Product currently unavailable

Part no. 9286110

BMW F20 F21 F30 F31 F32 Body Control Comfort Module Unit FEM ECU LR01 9286110

Product currently unavailable

Part no. 8512498-3

BMW E81 E87 LCI E90 120d 320d N47 177HP ECU Kit DDE 8512498 CAS3 + Key Manual

Product currently unavailable

Part no. A2239053002

Mercedes Vito W447 Aerial Antenna Amplifier Control Unit Module A2239053002

Product currently unavailable

Part no. A4515401250

Smart 451 SAM BCM Fuse Box Relay Control Unit Module A4515401250

Product currently unavailable

Part no. 4G1035192A

Audi A7 4G Multimedia CD Radio Control Head Unit 4G1035192A

Product currently unavailable

Part no. A0131540002-1

Mercedes W203 C209 W211 W220 Alternator 200A OM648 Diesel A0131540002

Product currently unavailable

Part no. A1729007600

Seat Module Mercedes W204 Front Right O/S Memory Control Unit A1729007600

Product currently unavailable

Part no. 8677631

BMW F30 LCI B48X 330e Hybrid Electric High Voltage Battery 8677631

Product currently unavailable

...

Showing 14455-14553 of 17831 products