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

Mercedes W166 C292 Front Seat Adjuster Module Unit Left Right N/O/S A1668203426

Product currently unavailable

Part no. A0009000104

Mercedes W176 W204 W207 Fuel Pump Module Petrol Control Unit ECU A0009000104

Product currently unavailable

Part no. A0111546402

Mercedes W163 CL203 W203 Petrol Alternator Generator Valeo 120A A0111546402

Product currently unavailable

Part no. A1715450901

Mercedes SLK R171 Front Fuse Box SAM Relay Control Unit Module A1715450901

Product currently unavailable

Part no. A2098700289

Mercedes CLK W209 Radio CD Player Stereo Audio Head Unit A2098700289

Product currently unavailable

Part no. A2731536591-1

Mercedes W221 S500 4-Matic M273.968 Engine Control Unit ECU Kit A2731536591 Key

Product currently unavailable

Part no. A0131541002-2

Mercedes Vito Viano W639 Alternator Generator Diesel 200A A0131541002

Product currently unavailable

Part no. A2115457701

Fuse Box Mercedes W211 CLS C219 Front SAM Control Unit Module A2115457701

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. A1664403436

Mercedes GLE W166 Wiring Harness Automatic Gearbox Cable Loom A1664403436

Product currently unavailable

Part no. A6429002900

Mercedes W212 E350 CDI OM642.850 Engine Control Unit Module ECU A6429002900

Product currently unavailable

Part no. A2469009412-1

Radio Panel Mercedes W176 W242 W246 Radio Multimedia Switch Control A2469009412

Product currently unavailable

Part no. A0009059300

Mercedes W205 W212 W246 Parking Distance Sensor Parktronic White A0009059300

Product currently unavailable

Part no. A2469000616

COMAND Head Unit Mercedes CLA C117 W176 W246 Nav Sat Radio Player A2469000616

Product currently unavailable

Part no. A2729001300

Mercedes C207 W212 E350 CGI 272984 291HP Engine Control Module ECU A2729001300

Product currently unavailable

Part no. A1685405908

Mercedes-Benz A-Class W168 Door Cable Harness Wiring Loom Rear A1685405908

Product currently unavailable

Part no. rhd-A0009052902

Mercedes W212 Negative Cable Battery Terminal Wiring A0009052902

Product currently unavailable

Part no. A2035450403

Mercedes-Benz C CLK Class W203 C209 Fuse Box Cover Engine A2035450403

Product currently unavailable

Part no. A6519006401-1

Mercedes GLC X253 220d OM651.921 170HP Engine Unit ECU Kit A6519006401 Automatic

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. A2049005908-1

Mercedes W204 Navigation CD Player COMAND Radio Sat Nav Head Unit A2049005908

Product currently unavailable

Part no. A6519007500-11

Mercedes W204 C 200 CDI 651.913 136HP Engine Unit ECU Kit A6519007500 Key Lock

Product currently unavailable

Part no. A1179053001

Mercedes W176 W117 Front Bumper Pedestrian Protection Crash Sensor A1179053001

Product currently unavailable

Part no. A6519060026-2

Starter Motor Mercedes W204 W212 W639 OM651 Diesel Engine Starter A6519060026

Product currently unavailable

Part no. A2711508833

Engine Wiring Harness Mercedes W204 M271.820 Petrol Loom Cable A2711508833

Product currently unavailable

Part no. A1645405662

Mercedes W164 Central Gateway Control Unit Module A1645405662

Product currently unavailable

Part no. A1645408662

Mercedes ML W164 Transfer Case Box Module Control Unit ECU A1645408662

Product currently unavailable

Part no. A2710106644-1

Mercedes R171 SLK200 M271.944 163HP Engine Control ECU A2710106644 Automatic

Product currently unavailable

Part no. A2035403533

Mercedes W203 C209 Battery Starter Alternator Wiring Harness Cable A2035403533

Product currently unavailable

Part no. A2055401172

Mercedes W205 Centre Console Wiring Loom Harness Cable A2055401172

Product currently unavailable

Part no. A1715451701-1

Fuse Box Mercedes SLK R171 Roadster SAM Relay Box Control Module A1715451701

Product currently unavailable

Part no. A2059006818

Mercedes W205 SAM Module Front Body Comfort Control Unit ECU A2059006818

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. A6421540402-3

Mercedes W164 W204 W211 OM642 Diesel Alternator Generator Lucas A6421540402

Product currently unavailable

Part no. A6429002900-3

Mercedes W207 E350 CDI BlueEfficiency OM642.836 Engine Module ECU A6429002900

Product currently unavailable

Part no. A2049017901

Rain Sensor Mercedes SLK R172 W204 Front Windscreen Control Unit A2049017901

Product currently unavailable

Part no. A2129004201

Mercedes S212 Estate Fuse Box Rear SAM Module Relay Control Unit A2129004201

Product currently unavailable

Part no. P04727770AC

Chrysler Grand Voyager 2.8CRD Diesel 163HP Engine Unit ECU P04727770AC Automatic

Product currently unavailable

Part no. A0009063705

Alternator Mercedes W212 S212 Diesel OM651 Alternator 220A Valeo A0009063705

Product currently unavailable

Part no. A2125409110-1

Console Lightning Mercedes W212 Centre LED Selector Cable Wiring A2125409110

Product currently unavailable

Part no. A2035453501

SAM Module Mercedes W203 Fuse Box Control Unit Relay A2035453501

Product currently unavailable

Part no. A1718205126

Mercedes SLK R171 Door Module Front Left N/S Control Unit ECU A1718205126

Product currently unavailable

Part no. A9069001203

Mercedes Sprinter W906 Radio Player Stereo Audio Head Unit A9069001203

Product currently unavailable

Part no. A6461540102-1

Alternator Generator Mercedes Vito W639 Sprinter W906 Engine Diesel A6461540102

Product currently unavailable

Part no. A1678201302

Mercedes W167 W256 USB Charger Connecting Unit A1678201302

Product currently unavailable

Part no. A2711502779-2

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

Product currently unavailable

Part no. A2128270228-ING

Mercedes W212 Estate Roof Antenna Cover Shark Indium Grey Metallic A2128270228

Product currently unavailable

Part no. A2129005010

Mercedes W212 Audio 20 CD Player Audio Stereo Radio Head Unit A2129005010

Product currently unavailable

Part no. A2119820402

Mercedes CLS W219 Battery Fuse Box Control Unit Module A2119820402

Product currently unavailable

Part no. A2049009907

Mercedes W204 Navigation Radio Player Head Unit Hazard Seat Switch A2049009907

Product currently unavailable

Part no. A6461503272

Mercedes W211 E220 CDI 646.821 170HP Engine Unit ECU Kit A6461503272 Key Lock

Product currently unavailable

Part no. A6511400800-1

Mercedes Sprinter W910 ECU Bracket Control Unit Module Holder Mount A6511400300

Product currently unavailable

Part no. A2049820202

Mercedes-Benz C-Class W204 Battery Negative Earth Cable Wiring A2049820202

Product currently unavailable

Part no. A0009003013

Mercedes W213 C238 Air Conditioning Climate Control Module A0009003013

Product currently unavailable

Part no. A0061519801

Mercedes W204 W212 W251 Starter Motor 642872 Diesel Engine Starter A0061519801

Product currently unavailable

Part no. A1698200204

Mercedes W169 W245 Front Seat Wiring Loom Harness Cable A1698200204

Product currently unavailable

Part no. lhd-A2215401250

Mercedes W221 Prefuse Fuse Distribution Box Unit Front A2215401250

Product currently unavailable

Part no. A2465406607-1

Positive Cable Mercedes W176 W246 Battery Lead Plus Pole Red A2465406607

Product currently unavailable

Part no. A2218708326

Mercedes W221 Rear View Backup Camera Control Unit Module A2218708326

Product currently unavailable

Part no. A2229009211-1

Mercedes W207 W212 Tuner Box Digital Satellite Radio Control Unit A2229009211

Product currently unavailable

Part no. A1699007400

Parking Sensor Mercedes W169 W245 PDC Distance Control Unit Module A1699007400

Product currently unavailable

Part no. A1665402150

Mercedes W166 Seat Fuse Relay Junction Box Block A1665402150

Product currently unavailable

Part no. A2469003615

Mercedes GLA X156 Tailgate Lift Boot Lid Control Unit Module A2469003615

Product currently unavailable

Part no. A0101543202

Mercedes W202 W208 R129 Alternator 14V 115A 0101543202 0123510068

Product currently unavailable

Part no. A6395407735

Mercedes Vito W639 OM646 Diesel Engine Wiring Cable Loom Harness A6395407735

Product currently unavailable

Part no. A2208203685

Mercedes W220 Headlight Head Lamp Control Module Unit A2208203685

Product currently unavailable

Part no. A1645402372

Mercedes W164 W251 Fuse Relay Module Rear Fuse Box Unit A1645402372

Product currently unavailable

Part no. A2215403862

Mercedes W221 Fuse Box SAM Module Control Unit Module ECU A2215403862

Product currently unavailable

Part no. A2129006824

Front Fuse Box Mercedes W204 S204 Relay Control Unit SAM Module A2129006824

Product currently unavailable

Part no. A1649005101

Mercedes ML W164 W251 Rear SAM Module Control Unit ECU A1649005101

Product currently unavailable

Part no. A2469002318-1

Radio Head Unit Mercedes W176 Media Player Navigation Unit A2469002318

Product currently unavailable

Part no. A2079005000

Mercedes A207 Convertible Roof Top Control Unit Module ECU A1718204226

Product currently unavailable

Part no. A2118701826

Seat Module Mercedes W203 W211 Control Unit Front Left Right N/O/S A2118701826

Product currently unavailable

Part no. A2129005300

Seat Module Mercedes W204 W212 Control Unit Front Left Right N/O/S A2129005300

Product currently unavailable

Part no. A0025428119

Mercedes W164 Relay 12V 30A Main Current Relay Trailer A0025428119 4RC93336400

Product currently unavailable

Part no. A1699002500

Mercedes W169 W245 W639 W906 Head Unit Radio Media Player Navigation A1699002500

Product currently unavailable

Part no. A2045405709

Mercedes W204 Dashboard Dash Navigation Central Display Wiring Cable A2045405709

Product currently unavailable

Part no. A2215401601

Mercedes W164 W204 Fuel Pump Module Control Unit ECU Petrol A2215401601

Product currently unavailable

Part no. A2045450169

Mercedes W204 SAM Module Fuse Box Relay Control Unit A2045450169

Product currently unavailable

Part no. A2749000800-3

Mercedes W205 C200 274.920 184HP Engine Control Unit ECU A2749000800

Product currently unavailable

Part no. A9060034199

Mercedes-Benz Sprinter W906 Front Left N/S Door Wiring Loom Harness A9060005999

Product currently unavailable

Part no. A2044400035

Mercedes W204 PDC Sensor Wiring Loom Harness Front Bumper A2044400035

Product currently unavailable

Part no. A2125407050-1

Mercedes W212 Fuse Box Control Unit Power Distribution Electrical A2125407050

Product currently unavailable

Part no. A6421509078-1

Mercedes C219 CLS320 CDI OM642.920 Engine Module ECU Kit A6421509078 Automatic

Product currently unavailable

Part no. A2139009216

Mercedes S205 Estate W213 W222 Towing Hitch Trailer Hook Module Unit A2139009216

Product currently unavailable

Part no. A6409004600

Mercedes W245 B180 CDI 640.940 Engine Control Unit ECU A6409004600 Automatic

Product currently unavailable

Part no. A2105401830

Mercedes-Benz E-Class W210 Battery Positive Plus Cable Loom Harness A2105401830

Product currently unavailable

Part no. A9065403815

Mercedes Sprinter W906 OM651 Battery Wiring Harness Loom Cable A9065403815

Product currently unavailable

Part no. A6079002300-1

Mercedes W176 W246 180 CDI OM607 Engine Control Unit Module ECU A6079002300

Product currently unavailable

Part no. A2129008507

Mercedes W212 Front Fuse Box SAM Relay Control Unit Module A2129008507

Product currently unavailable

Part no. A0009003505

Module Mercedes W205 Fuel Pump Control Module In Trunk Rear ECU A0009003505

Product currently unavailable

Part no. A2479005307

Mercedes W177 Body Control Module BCM Controller Unit A2479005307

Product currently unavailable

Part no. A0355454232

Mercedes W211 Automatic Gearbox Transmission Module Control Unit ECU A0355454232

Product currently unavailable

Part no. A2469009413

Mercedes W176 W246 Control Unit Body Control Module ECU A2469009413

Product currently unavailable

Part no. A2711530691-1

Mercedes C209 200 Kompressor 271.940 163HP Engine ECU Kit A2711530691 Key Lock

Product currently unavailable

Part no. A0061510501

Mercedes W203 W204 Petrol Engine Starter Motor A0061510501

Product currently unavailable

Part no. A6394408637

Mercedes W639 Rear Bumper PDC Wiring Parking Sensor Loom Harness A6394408637

Product currently unavailable

Part no. A1699000400

Door Module Mercedes W169 W245 Control Unit Front Right O/S A1699000400

Product currently unavailable

Part no. A2115457301

Mercedes C219 Front Fuse Box SAM Relay Control Module A2115457301

Product currently unavailable

...

Showing 2773-2871 of 3791 products