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

Lever Sensor Wiring Mercedes W213 C238 Rear Left Right N/O/S Cable A2135403205

Product currently unavailable

Part no. A6111537779-1

Mercedes W203 C220CDI OM611.692 116HP Engine Unit ECU Kit A6111537779 Key Lock

Product currently unavailable

Part no. A2098200789

Mercedes CLK A209 Convertible Antenna Amplifier Module A2098200789

Product currently unavailable

Part no. A2709000900-4

Mercedes W176 A45 4Matic M133.980 381HP Engine Control ECU A2709000900 Automatic

Product currently unavailable

Part no. A1729006613

Mercedes SLK R172 GPS Navigation System Screen Display A1729006613

Product currently unavailable

Part no. A0009063522

Alternator Mercedes W212 Engine Generator 220A Valeo A0009063522

Product currently unavailable

Part no. A6429000401-1

Mercedes W166 ML350 Bluetec 4-Matic OM642.826 Engine ECU Kit Module A6429000401

Product currently unavailable

Part no. A2208208089

Mercedes-Benz S-Class W220 Aerial Roof Antenna Rear Frame Cover A2208208089

Product currently unavailable

Part no. A2049060205-3

Mercedes W204 Rear SAM Module Fuse Box Relay Control Unit A2049060205

Product currently unavailable

Part no. A0009102675

Mercedes W204 Seat Loom Cable Multicontour Pump Control Front A0009102675

Product currently unavailable

Part no. A0131541002-1

Mercedes Vito Viano W639 Alternator Generator Diesel 200A A0131541002

Product currently unavailable

Part no. A2711502779-2

Mercedes W204 C180 156HP Kompressor M271.952 Engine ECU Kit A2711502779 Key

Product currently unavailable

Part no. A6549009400-4

Mercedes W447 W907 W910 150HP OM654.920 Engine Control Module ECU A6549009400

Product currently unavailable

Part no. A1695400762

Parking Module Mercedes W169 W245 PDC Distance Control Unit Sensor A1695400762

Product currently unavailable

Part no. A2701501633

Mercedes C117 W176 A180 W246 M270 Engine Wiring Harness Cable Loom A2701501633

Product currently unavailable

Part no. A6519003701-2

Mercedes W212 Engine ECU Module Wiring Loom Harness Socket OM651 A6519003701

Product currently unavailable

Part no. A1649004600

Mercedes ML W164 W251 SAM Module Control Unit ECU A1649004600

Product currently unavailable

Part no. A1695401105

Mercedes-Benz A-Class W169 Heater Cable Harness Wiring Petrol A1695401105

Product currently unavailable

Part no. A0009009935

Mercedes EQA350 H243 4matic Electric Battery Charger Control Module A0009009935

Product currently unavailable

Part no. A1661510001-1

Mercedes Benz A Class W168 Petrol Engine Starter Motor A1661510001

Product currently unavailable

Part no. A1645404601

Mercedes ML W164 Control Unit Module Fuse Box SAM A1645404601

Product currently unavailable

Part no. A2710106644-2

Mercedes R171 SLK200 M271.944 163HP Engine Control ECU Kit A2710106644 Key Lock

Product currently unavailable

Part no. A2129062903-2

Mercedes W212 Headlight Headlamp LED Wire Wiring Cable Loom Left N/S A2129062903

Product currently unavailable

Part no. A2469009512

Multimedia Switch Mercedes X156 C117 W176 CD Player Radio Head Unit A2469009512

Product currently unavailable

Part no. A2124400613

Wiring Harness Mercedes W212 Dashboard Dash Wiring Cable A2124400613

Product currently unavailable

Part no. 237104559R

Mercedes W415 111 CDI OM607.951 110HP Engine ECU Control Unit 237104559R Manual

Product currently unavailable

Part no. A2129014606-1

Mercedes W212 Display Screen Information Navigation Dashboard A2129014606

Product currently unavailable

Part no. A0024463140-3

Mercedes A160 W169 M266.920 Engine Control Unit ECU A0024463140 Automatic

Product currently unavailable

Part no. A6519007600-4

Mercedes W176 A200 CDI BE OM651.901 Engine ECU Kit A6519007600 Key + Lock

Product currently unavailable

Part no. A1638201589

CD Changer Mercedes ML W163 6 Disc Changer With Magazine A1638201589

Product currently unavailable

Part no. A1635457332

Mercedes ML W163 Comfort Control Module Central Electronics A1635457332

Product currently unavailable

Part no. A1245401850

Mercedes W124 M103.940 Engine Fuse Box Module Unit A1245401850

Product currently unavailable

Part no. RHD-A2135405048

Mercedes W213 Front Door Wiring Harness Cable Loom Left N/S A2135405048

Product currently unavailable

Part no. A2711504233

Engine Wiring Mercedes W204 W212 M271 Petrol Harness Loom Cable A2711504233

Product currently unavailable

Part no. A2129004222

Mercedes-Benz E W207 A207 SAM Control Unit Module Fuse Box Rear A2129004222

Product currently unavailable

Part no. A2389000401

Mercedes C238 E53 Coupe Window Lifter Comfort Module Unit Rear A2389000401

Product currently unavailable

Part no. A2045420818

Mercedes-Benz A C W169 W204 Battery Negative Earth Cable Wiring A2045420818

Product currently unavailable

Part no. A9065452101

Fuse Box Mercedes Sprinter W906 SAM Control Unit Module A9065452101

Product currently unavailable

Part no. A6519006401

Mercedes GLC X253 220d 170HP 651.921 Engine Unit ECU A6519006401 Automatic

Product currently unavailable

Part no. A6461541102-3

Alternator Mercedes Vito W639 Sprinter W906 14V 180A Valeo A6461541102

Product currently unavailable

Part no. A1635422918

Mercedes W163 Air Module System Control Unit Module ECU A1635422918

Product currently unavailable

Part no. A1729003106

Mercedes SLC R172 Parktronic Parking Sensor Module Unit ECU A1729003106

Product currently unavailable

Part no. A6079002300-2

Mercedes W176 180 CDI OM607.951 Blue Efficiency ECU Kit A6079002300 Key Lock

Product currently unavailable

Part no. A1698700689-3

Mercedes W169 W245 CD Player Radio Stereo Head Unit A1698700689

Product currently unavailable

Part no. A2118704626

Driver Seat ECU Mercedes W203 A209 W211 Memory Control Unit Module A2118704626

Product currently unavailable

Part no. A2709002100-5

Mercedes C117 CLA45 AMG M133.980 4-Matic Engine Control ECU Kit A2709002100 Key

Product currently unavailable

Part no. A2701503920

Mercedes W176 Oil Pump Adapter Solenoid Valve Wiring Harness M270 A2701503920

Product currently unavailable

Part no. A2218707493

Mercedes W221 Seat Control Module Front Right O/S A2218707493

Product currently unavailable

Part no. A2088206010

Mercedes W202 C208 W208 Alarm Sensor Module Unit A2088206010

Product currently unavailable

Part no. A2709002900-1

Mercedes X156 GLA200 M270.910 156HP Engine Control Unit ECU Kit A2709002900 Key

Product currently unavailable

Part no. A0041537528

Mercedes-Benz M-Class ML W163 Fuel Pressure Sensor A0041537528

Product currently unavailable

Part no. A1635422318

Mercedes ML W163 Yaw Rate Sensor Turn Rate Speed Module A1635422318

Product currently unavailable

Part no. A4475407880

Mercedes Vito W447 Front Passenger Side Fuse Box Control Unit Module A4475407880

Product currently unavailable

Part no. A2769007300

Mercedes SL400 R231 276.825 333HP Engine Control Unit ECU A2769007300 Automatic

Product currently unavailable

Part no. A2229003113

Mercedes W205 W217 W222 W253 Burmester Sound Amplifier Unit Module A2229003113

Product currently unavailable

Part no. A2205451832

Mercedes-Benz CL S C215 W220 ESP PML BAS Control Unit Module ECU A2205451832

Product currently unavailable

Part no. A2229001809

Mercedes W205 W222 Door Module Front Left N/S Control Unit ECU A2229001809

Product currently unavailable

Part no. A2129000022

Mercedes S212 Rer Fuse Box Relay SAM Comfort Control Unit Module A2129000022

Product currently unavailable

Part no. A6395407735

Mercedes Vito W639 OM646 Diesel Engine Wiring Cable Loom Harness A6395407735

Product currently unavailable

Part no. A1645401801

Mercedes ML W164 Rear Control Unit Module Fuse Box SAM A1645401801

Product currently unavailable

Part no. A6519009502-2

Mercedes W176 A200 CDI OM651.930 136HP Engine Module ECU A6519009502 Manual

Product currently unavailable

Part no. A1718206926

Mercedes SLK R171 Door Module Front Left Control Module A1718206926

Product currently unavailable

Part no. A2105401530

Mercedes-Benz E W210 Battery Starter Alternator Positive Plus Cable A2105401530

Product currently unavailable

Part no. A2469009412

Mercedes W176 Head Unit Radio Cd Player Bluetooth Multimedia A2469009412

Product currently unavailable

Part no. A6519005301-13

Mercedes S212 E250CDI BE OM651.924 204HP Engine Unit Module ECU Kit A6519005301

Product currently unavailable

Part no. A2129004718

Door Module Mercedes W212 Front Right Control Unit Module A2129004718

Product currently unavailable

Part no. W220 Wiring Loom Set PDC Rear

Mercedes-Benz S-Class W220 Cable Loom Wiring Parking Sensors Rear Bumper

Product currently unavailable

Part no. A6461500678-1

Mercedes Vito W639 109CDI 646.980 95HP Engine ECU Kit A6461500678 Ignition + Key

Product currently unavailable

Part no. A2074400208

Mercedes C207 Parking Sensor Wiring Loom Cable Harness Front PDC A2074400208

Product currently unavailable

Part no. A2139000505

Mercedes W213 Engine Ignition Control Module Unit ECU Diesel Engine A2139000505

Product currently unavailable

Part no. A0111548402

Alternator Generator Mercedes W203 M111 Petrol Engine Valeo 120A A0111548402

Product currently unavailable

Part no. A2711502733

Wiring Harness Mercedes W203 M271 Kompressor Petrol Engine Camshaft A2711502733

Product currently unavailable

Part no. A2711535391-3

Mercedes R171 SLK 200K 163HP 271.944 Engine ECU Kit A2711535391 Keys Lock

Product currently unavailable

Part no. A1645409262

Mercedes W164 W251 Rear SAM Fuse Box Control Unit Module A1645409262

Product currently unavailable

Part no. A2128270228-COS

Mercedes S212 Estate Roof Antenna Cover Shark Cosmos Black Metallic - 303

Product currently unavailable

Part no. A1729008600

Mercedes W204 Display Screen Multimedia Navigation Dashboard Unit A1729008600

Product currently unavailable

Part no. A1635457032

Mercedes ML W163 Module SAM Electronics Control Unit A1635457032

Product currently unavailable

Part no. A0028203826

Mercedes-Benz A-Class W168 Airbag Belt Locking System Control Unit Module ECU

Product currently unavailable

Part no. A2479061803-1

Mercedes W177 W247 Battery Fuse Box Positive Distribution Terminal A2479061803

Product currently unavailable

Part no. A6519005301

£Mercedes W212 E220CDI OM651 Diesel Engine Control Unit Module ECU A6519005301

Product currently unavailable

Part no. A1695400132

Cable Wiring Mercedes W245 Fuel Pump Sending Unit Plug Socket A1695400132

Product currently unavailable

Part no. A2208201475

Mercedes-Benz S-Class W220 Aerial Roof Antenna Shark Radio A2208201475

Product currently unavailable

Part no. A2045404150

Fuse Box Mercedes W204 W212 SAM Relay Control Unit Module A2045404150

Product currently unavailable

Part no. A1669001420-2

Mercedes CLA C117 W166 Head Unit Sat Nav Navigation Display Screen A1669001420

Product currently unavailable

Part no. A9015407309

Mercedes W901 OM602 Ignition Lead Electrical Cable Harness A9015407309

Product currently unavailable

Part no. A6395450101

Mercedes-Benz W639 Fuse Box Relay Control Unit Electric Module SAM A6395450101

Product currently unavailable

Part no. A6121533279-1

Mercedes-Benz ML W163 270 CDI Engine Control ECU Kit A6121533279 Key Automatic

Product currently unavailable

Part no. 169102698R

Mercedes W415 Fuel Pump Module Control Unit 169102698R

Product currently unavailable

Part no. A4148200089

Mercedes-Benz Vaneo W414 Radio Aerial Antenna Amplifier Module Unit A4148200089

Product currently unavailable

Part no. A2128209059-1

Mercedes W212 Headlamp Headlight Wiring Harness Plug Right O/S A2128209059

Product currently unavailable

Part no. A6461532591

Mercedes W639 Vito 111 CDI OM646 Engine Unit Module ECU A6461532591 Manual

Product currently unavailable

Part no. A2128700194

Mercedes W204 W212 C218 Sound Audio Amplifier Harman Becker A2128700194

Product currently unavailable

Part no. A0355454232

Mercedes W211 Automatic Gearbox Transmission Module Control Unit ECU A0355454232

Product currently unavailable

Part no. A0035455005

Mercedes W202 W210 Kick Down Kickdown Relay Electrical Module Unit A0035455005

Product currently unavailable

Part no. A1695420518-HBL

Mercedes W245 Front Bumper Parking Distance Sensor Parktronic Horizon Blue 391

Product currently unavailable

Part no. RHD-A2055409306

Mercedes W205 Door Wiring Loom Cable Rear Left N/S A2055409306

Product currently unavailable

Part no. A2539006905

Mercedes GLC X253 Central Display Dashboard Infotainment Screen A2539006905

Product currently unavailable

Part no. A0034466040

Mercedes-Benz W169 W245 Engine Control Unit Module ECU SIM266 A0034466040

Product currently unavailable

Part no. A9068203526

Door Module Mercedes Sprinter W906 Front Right O/S Control Unit ECU A9068203526

Product currently unavailable

...

Showing 3367-3465 of 4320 products