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

Sam Module Mercedes ML W164 Rear Relay Box Control SAM Unit A1649004400

Product currently unavailable

Part no. 8642761

Integrated Supply Module BMW F40 X1 F48 Mini F55 F56 Control Unit Z11 8642761

Product currently unavailable

Part no. 9366338

Dashboard Wiring BMW G30 G31 Front Centre Console Loom Harness 9366338

Product currently unavailable

Part no. A1635403033

Mercedes-Benz M ML W163 Front Left Right Door Wiring Loom Harness A1635403033

Product currently unavailable

Part no. A2909064100

Exhaust Flap Actuator Mercedes W205 W213 C253 Control Unit Right O/S A2909064100

Product currently unavailable

Part no. A2118705885

Air Bag Module Mercedes W211 Control Unit ECU Airbag Sensor A2118705885

Product currently unavailable

Part no. 5K4971694BC

VW Volkswagen Golf Gti 5k Door Wiring Loom Connector Rear Right O/S 5K4971694BC

Product currently unavailable

Part no. 7639421

Mini Cooper S R56 LCI R60 N18 184HP Engine ECU Control Unit DME 7639421 Manual

Product currently unavailable

Part no. A2711532291

Mercedes W203 C180 Kompressor M271.946 Engine ECU A2711532291 Automatic

Product currently unavailable

Part no. 9210858

BMW 5 Series F10 F11 Power Distribution Fuse Box Rear 9210858

Product currently unavailable

Part no. A0005400072

Mercedes W202 A208 C208 W208 W210 Fuse Box Relay Control Unit A0005400072

Product currently unavailable

Part no. A2711536179-1

Mercedes-Benz W203 C 180 Kompressor Engine Control Unit Module A2711536179 Auto

Product currently unavailable

Part no. 4L0035223A

Audi Q7 4L Bose Audio Sound System Amplifier Module 3.0 TDI 4L0035223A

Product currently unavailable

Part no. 8512498-1

BMW X1 E84 20dX N47 177HP Engine Control ECU Kit DDE 8512498 Automatic

Product currently unavailable

Part no. 6556VS

Peugeot 307 308 Citroen C4 Fuse Box Cover Lid Housing Cap 9653315180

Product currently unavailable

Part no. 03G906021KH-1

Volkswagen Golf Mk5 1.9 TDI 105HP BXE Engine ECU Kit 03G906021KH Ignition + Key

Product currently unavailable

Part no. 7L6035177E

Volkswagen Touareg 7L Display Screen Multimedia Navigation Unit 7L6035177E

Product currently unavailable

Part no. 8200106788

Starter Motor Renault Trafic II Opel Vivaro A Diesel 2.5 dCi 8200106788

Product currently unavailable

Part no. 06H911021EX

Audi A4 A5 Starter Motor 2.0 TFSI Petrol Engine CDNC CDNB 06H911021EX

Product currently unavailable

Part no. 9223385

BMW F01 F02 F04 F07 F10 F11 IBS Negative Battery Cable 9223385

Product currently unavailable

Part no. 8586168

Engine Wiring BMW F20 F21 F30 120dX 320dX N47N Loom Harness Cable Module 8586168

Product currently unavailable

Part no. 04C903023T

Audi A1 8X 1.4 TFSI CZCA Alternator Generator 04C903023T

Product currently unavailable

Part no. A2049007408

Mercedes W204 Display Screen Information Navigation Dashboard A2049007408

Product currently unavailable

Part no. 7S7T-19G481-CD

Ford Mondeo Mk4 S-Max Kuga Central Locking Keyless Entry Module 7S7T-19G481-CD

Product currently unavailable

Part no. 4F5945095L-2

Audi A6 C6 Saloon Rear Tailgate Trunk Lid Light Lamp Wiring Left N/S 4F5945095L

Product currently unavailable

Part no. 7788680-5

Starter Motor BMW E46 E60 E83 E53 M57N Diesel Engine Starting Unit 2KW 7788680

Product currently unavailable

Part no. B67824524

Mercedes W164 Media Interface Connection Cable MI AUX Wiring B67824524

Product currently unavailable

Part no. A6395450601-1

Mercedes W639 Fuse Box Relay Control Unit Electric Module SAM A6395450601

Product currently unavailable

Part no. 7305446

BMW Mini R55 R56 R57 R58 R59 Rear PDC Ultrasonic Parking Sensor Reef Blue

Product currently unavailable

Part no. 6R0915345E

Seat Ibiza Fuse Box Relay Carrier Holder Bracket Mount Tray 6R0915345E

Product currently unavailable

Part no. 9491592-1

BMW F22 F23 F87 Rear Tail Light Lamp LED Wiring Loom Right O/S 9491592

Product currently unavailable

Part no. A0315451732

Mercedes CL W215 W220 Body Control Module SAM Unit Right O/S A0315451732

Product currently unavailable

Part no. 9263793

BMW 1 Series E81 Footwell ECU Light Control Module Basis PL2 FRM3R Lear 9263793

Product currently unavailable

Part no. 6821977

Mini F55 Petrol Engine ECU Control Module Unit 6821977

Product currently unavailable

Part no. 7583740

BMW Z4 E89 Earth Battery Cable Wiring Loom Harness Line 7583740

Product currently unavailable

Part no. 8642252

BMW F80 M3 F82 F83 M4 S55 431HP Engine Unit Module ECU DME 8642252 Drivelogic

Product currently unavailable

Part no. 7811151

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

Product currently unavailable

Part no. 6923700

BMW E65 Cable Harness Door Panel Card Rear Wiring Loom 6913147

Product currently unavailable

Part no. 7807827-1

BMW 1 3 Series E87 E90 LCI 120d 320d N47 Diesel ECU Kit DDE 7807827 CAS3 Key

Product currently unavailable

Part no. 7541335-1

BMW E60 520i M54 170HP Engine Control Unit ECU Kit DME 7541335 CAS2 Key Manual

Product currently unavailable

Part no. A0315450832

Mercedes-Benz E-Class W210 ESP PML BAS Control Unit Module ECU A0315450832

Product currently unavailable

Part no. 6905969

BMW 3 5 X5 Series E39 E46 E53 Control Unit Voice Input System Module 6905969

Product currently unavailable

Part no. A1698706094

Mercedes W169 W245 Radio Player Audio 20 Stereo CD Head Unit Display A1698706094

Product currently unavailable

Part no. 8506374-4

BMW E81 E87 E90 LCI 120d 320d N47 ECU Kit DDE 8506374 CAS3 + Key Automatic

Product currently unavailable

Part no. 7616431-2

BMW E60 E90 E91 LCI 330i 530i N53 272HP ECU Kit DME 7616431 CAS3 + Key Automatic

Product currently unavailable

Part no. 1456887

Ford Transit Tourneo Glow Plug Wire Assembly 2.2 TDCi 1456887 6C1Q-6M091-AD

Product currently unavailable

Part no. 6957504

BMW 6 Z4 Series E64 E85 Sensor B-pillar Airbag Right O/S 6957504

Product currently unavailable

Part no. 1422972

BMW E39 520i M52 Automatic Gearbox ECU Control Module EGS 1422972 1422972

Product currently unavailable

Part no. HB3T-14K039-DB

Ford Ranger Mk3 Automatic Gearbox Wiring Loom Harness 2.2 Diesel HB3T-14K039-DB

Product currently unavailable

Part no. EJ32-14301-AC

Range Rover Evoque L538 2.2 TDCi Negative Battery Cable Terminal EJ32-14301-AC

Product currently unavailable

Part no. 31268908

Land Rover Discovery 4 L319 Heated Seat Module Control Unit ECU 31268908

Product currently unavailable

Part no. 8T0862335F

Audi A4 B8 Bluetooth Multimedia Interface Control Module Unit ECU 8T0862335B

Product currently unavailable

Part no. 04L907445G-1

Audi A3 8V 1.6 TDI DGTE 115 HP Engine ECU Kit Ignition + Key 04L907445G Manual

Product currently unavailable

Part no. LR079636

Land Rover Discovery Sport L550 Transmission Module Control Unit CGJ32-14C336-AA

Product currently unavailable

Part no. A6079002200-2

Mercedes W176 A180 CDI OM607 109HP BlueEFFICIENCY Engine Unit ECU A6079002200

Product currently unavailable

Part no. 3C0907530H

Volkswagen Passat CC Gateway Module Control Unit 3C0907530H

Product currently unavailable

Part no. 7550967

BMW E81 E90 E91 E60 Petrol Alternator Generator 150A 7550967

Product currently unavailable

Part no. 1K0971230GM

Volkswagen Eos 1F Alternator Wiring Loom Harness Cable 1K0971230GM

Product currently unavailable

Part no. A6461500477

Mercedes W906 311 CDI 646.985 109HP Engine Unit Module ECU A6461500477 Manual

Product currently unavailable

Part no. 1K0953549CT

VW Volkswagen Caddy Maxi 2k Steering Column Combi Switch Module ECU 1K0953549CT

Product currently unavailable

Part no. 9M2J-19H405-AD

Ford Mondeo Mk4 S-Max Galaxy Mk3 Rear View Camera Control Module 9M2J-19H405-AD

Product currently unavailable

Part no. A1694402805

Mercedes-Benz A B W169 W245 Starter Alternator Battery Lead Cable A1694402805

Product currently unavailable

Part no. 8W0971029BD

Audi A4 B9 Front Door Wiring Loom Cable Right O/S 8W0971029BD

Product currently unavailable

Part no. 7511570-3

BMW X5 E53 3.0i Engine M54 231HP ECU Kit DME 7511570 + EWS + Key Automatic

Product currently unavailable

Part no. 9T1T-15K600-DD

Ford Transit Connect Control Unit Central Door Locking Module ECU 9T1T-15K600-DD

Product currently unavailable

Part no. 6919275

BMW Z4 Series E85 E86 Body Control Unit Module GM5 Star12 Delphi 6919275

Product currently unavailable

Part no. 6903458

BMW 7 Series E65 E66 Antenna Amplifier Diversity Module Radio Booster 6903458

Product currently unavailable

Part no. 9200821

BMW E81 E87 E90 MULF Hands-free Electronics Charging Module 9200821

Product currently unavailable

Part no. 7L0959933D

Porsche Cayenne 9PA Body Comfort Module Control Unit ECU 7L0959933D

Product currently unavailable

Part no. A6421507733

Mercedes ML W164 OM642 Diesel Engine Wiring Loom Harness Cable A6421507733

Product currently unavailable

Part no. 9299268-1

BMW F20 F21 F30 F31 F32 Radio Stereo Professional CD DAB Head Unit 9299268

Product currently unavailable

Part no. 059903016G

Audi A4 B8 A5 8T Q5 8R Alternator Generator 3.0 TDI Diesel 059903016G

Product currently unavailable

Part no. 1768199-1

Ford Galaxy Mk2 Radiator Cooling Fan Control Module Ecu 2.0 Diesel 940004107

Product currently unavailable

Part no. 9131766

Seat Wiring Cable BMW E81 E82 E90 E92 Front Right O/S Seat Loom Harness 9131760

Product currently unavailable

Part no. 8E5035223D

Audi A4 B7 Stereo Radio Sound Audio Amplifier Module Harman Becker 8E5035223D

Product currently unavailable

Part no. 8508654

BMW F10 F11 N47S1 Engine Injector Module Wiring Harness 8508654

Product currently unavailable

Part no. 518936010

Citroën Relay III Fiat 500 Front Door Speaker Left Right N/O/S 518936010

Product currently unavailable

Part no. A0131546802-1

Alternator Generator Mercedes W204 W212 OM651 14V 180A Engine Electrical Unit

Product currently unavailable

Part no. A0009825323

Mercedes GLC X253 Relay Battery Control Cut Off Out Relay A0009825323

Product currently unavailable

Part no. 6933575

BMW 7 Series E65 E66 Diversity Antenna Tuner Amplifier 6933575

Product currently unavailable

Part no. A2710107344-1

Mercedes A209 CLK200 K M271.955 Engine Control Unit ECU Kit A2710107344 Key

Product currently unavailable

Part no. 038903018QX

Audi A3 8L TT 8N Seat Leon Alternator Generator 120A Bosch 038903018QX

Product currently unavailable

Part no. 1K0919737M

VW Golf GTD GTI 5K Leon FR 1P Interface Bracket Foam Cover Surround 1K0919737M

Product currently unavailable

Part no. 0AM911023F

Volkswagen Polo 6R Engine Starter Motor Assembly Unit 0AM911023F

Product currently unavailable

Part no. 2745388-1

Ford Fiesta Mk8 Puma Key Fob Remote Control K1BT-15K601-DE

Product currently unavailable

Part no. 3G0845109

Volkswagen Tiguan Skoda Octavia 5E Sun Light Solar Sensor Control Unit 3G0845109

Product currently unavailable

Part no. 7621178-11

BMW E81 E87 LCI E90 N43 170HP Engine Control Module ECU Kit DME 7621178 Manual

Product currently unavailable

Part no. 1J0035186E

VW Volkswagen Golf 1J Mk4 Radio Cassette Audio Player Head Unit 1J0035186E

Product currently unavailable

Part no. 6918871

BMW X5 Series E53 Radio BMW Business Cassette Player 6918871

Product currently unavailable

Part no. 01370978080

Airbag Module Citroen Relay Fiat Ducato Air Bag Control Unit 01370978080

Product currently unavailable

Part no. 99661826006

Porsche Boxster 986 Comfort Module Control Unit ECU 99661826006

Product currently unavailable

Part no. A2115453240

Mercedes E-Class S211 Touring Rear Sam Unit Fuse Box Holder Bracket A2115453240

Product currently unavailable

Part no. 9897880

BMW F45 LCI 220i B48C 192HP Petrol Engine ECU DME 9897880 + BDC + Key Manual

Product currently unavailable

Part no. 3Q0906121C

Volkswagen VW Crafter SY Fuel Pump Module Control Unit ECU 2.0 TDI 3Q0906121C

Product currently unavailable

Part no. 7848603-1

Alternator BMW F87 M2 F80 M3 F82 F83 M4 S55 Engine Generator 250A Denso 7848603

Product currently unavailable

Part no. A2219009202

Parktronic Module Mercedes W221 W216 Parking Sensor Control Unit A2219009202

Product currently unavailable

Part no. 8T2035666D

Audi A5 8T CD Player Radio Multimedia MMI Head Unit ECU 8T2035666D

Product currently unavailable

Part no. 8625241-4

BMW F20 F30 116i 316i N13 136HP Engine ECU KIT DME 8625241 + FEM + Key Automatic

Product currently unavailable

...

Showing 19999-20097 of 21017 products