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

Mercedes Vito W639 Door Front Right O/S Control Unit Module ECU A6398201226

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2038202185

Mercedes W203 Door Control Module Rear Left N/S A2038202185

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A4479009808

Mercedes Vito W447 Fuse Box Relay Control Unit Electric Module SAM 4479009808

€237.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A0065422618

ESP Sensor Mercedes W166 Electronic Yaw Rate Sensor Module A0065422618

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A6461502734-1

Mercedes W204 C220 CDI 170HP 646.811 Engine Unit ECU A6461502734 Automatic

€142.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2219009903

Mercedes-Benz S-Class W221 Rear Door N/O/S Control Unit Module A2219009903

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2125400035

Earth Ground Cable Mercedes W204 W207 W212 Battery Starter Wiring A2125400035

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2389053301

Tailgate Trunk Mercedes X117 X156 W205 Boot Rear Control Module Unit A2389053301

€37.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A1779061002

Fuse Box Mercedes W177 Power Distribution Junction Relay Unit A1779061002

€42.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2469012504

Mercedes W176 W246 Rain Sensor Light Control Unit Front Windscreen A2469012504

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A1715450032

Mercedes SLK R171 PDC Parking Distance Control Unit Module Sensor A1715450032

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A6519007500

Mercedes W212 E220CDI OM651.924 Engine Unit Module ECU A6519007500 Automatic

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A9067600404

Bowden Cable Mercedes W906 Rear Sliding Door Opener Cable Wire A9067600404

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A1669004302

Mercedes W176 W246 Front Door Module Control Unit Module Right O/S A1669004302

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A1725407805

PDC Wiring Mercedes R172 Parktronic Parking Sensor Cable Rear A1725407805

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2539000100

Rain Light Sensor Mercedes X253 Windschield Sensor Module Unit A2539000100

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A0009003310

Mercedes W205 W213 Fuel Pump Module Control Unit ECU A0009003310

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A1698201585

Mercedes W245 ECU Control Unit Sensor Air Module A1698201585

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A1645403132

Mercedes-Benz M-Class ML W164 Wiring Loom Cable Harness Fuel Tank A1645403132

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2055404106

Brake Harness Mercedes W205 Rear Left Brake Pad Wear Wire Wiring A2055404106

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2711501920

Engine Wiring Mercedes W204 C207 W212 M271 Harness Loom Cable A2711501920

€132.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A9067601304

Mercedes-Benz Sprinter W906 Front Right Door O/S Handle Bowden Pull Cable

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A9067601204

Mercedes Sprinter W906 Front Left Door N/S Handle Bowden Pull Cable A9067601204

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A1698206726

Mercedes-Benz W245 ECU Control Unit Sensor Module Airbag A1698206726

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A0009006612

Rear Module Mercedes C205 W205 Fuel Pump Control Unit A0009006612

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A9065400341

Battery Cable Mercedes Sprinter W906 Negative Lead Wiring Harness A9065400341

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2059006047

SAM Module Mercedes W205 GLC X253 Rear Comfort Control Unit ECU A2059006047

€127.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A0044460310

Mercedes W204 C207 Eletronic Transmission Unit Gearbox Control SBW A0044460310

€199.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A6519007500-13

Mercedes W212 E250 CDI 651.924 204HP Engine Unit ECU Kit A6519007500 Key Lock

€313.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A1769051000

Mercedes W176 Front Crash Impact Air Module Sensor Unit A1769051000

€75.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A9079001403

Mercedes Sprinter W907 Module Control Unit Radar Sensor A9079001403

€123.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2466200018

Mercedes-Benz A-Class W176 Battery Frame Holder Bracket Mount Plate A2466200018

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2059006923

Air Conditioning Module Mercedes C205 X253 A/C Control Unit ECU A2059006923

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2055404982

Mercedes W205 Charging Plug Socket Wiring Cable A2055404982

€70.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2129000004

SAM Module Mercedes W212 Fuse Box Relay Control Unit A2129000004

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2129004502

Mercedes W204 W207 Front Right Door Control Unit Module A2129004502

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A0015424423

Parktronic Screen Mercedes W207 W212 Front Parking Sensor Display A0015424423

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2118701885-1

Mercedes SLK R171 Control Unit Module DC UHI MOST A2118701885

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2048982614

Battery Cover Mercedes W204 W207 Trim Lid Panel A2048982614

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A6519003403-3

Mercedes Sprinter W906 OM651.955 163HP Engine Unit Module ECU A6519003403 Manual

€227.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2229001015

Mercedes W213 C238 Ambient Lighting Control Unit Module ECU A2229001015

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A1665402350

Fuse Box Mercedes GLE W166 C292 W463 Relay Control Unit Module A1665402350

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2049060205-1

Mercedes C204 Rear SAM Module Fuse Box Relay Control Unit A2049060205

€37.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2139068701

Mercedes W205 W213 Fuse Box Rear SAM Module Electrical Fuse Unit A2139068701

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A9079002407

Mercedes W907 Electronic Ignition Module Control Unit A9079002407

€161.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A0055421218

Crash Sensor Mercedes W176 W204 W212 Impact Air Unit Module Control A0055421218

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A9075406749

Mercedes W907 Battery Electrical Ground Line Wire Earth Cable A9075406749

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2129001529

Mercedes-Benz C E Class W204 W207 W212 Front Left Door N/S Control Unit Module

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. a2469004716

Radio CD Player Mercedes W176 W246 Audio Navigation Stereo Head Unit A2469004716

€284.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A0009820112

Mercedes W177 W207 Power Energy Distribution Unit Module A0009820112

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A0009821923-1

Mercedes W205 Interior Trunk Fuse Box Automotive Pink Relays Set A0009821923

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2229063202-1

Fuse Box Mercedes W205 W222 Electrical Relay Box Module Unit A2229063202

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A0009001017

Mercedes S205 W205 Air Conditioning Control Module A/C ECU Unit A0009001017

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2198202526

Light Module Mercedes W209 W219 W164 Headlight Headlamp Control Unit A2198202526

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2189000104

Mercedes CLS X218 Parktronic PDC Parking Assist Control Module A2189000104

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 0390203255

Seat Adjustment Motor Mercedes W221 Front Seat Motor Actuator 0390203255

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A0038201926

Mercedes W221 Door Crash Impact Sensor Rear Left Right N/O/S A0038201926

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2475400600

Mercedes W177 Rear Axle Wheel RPM Speed Right Sensor Wire Harness A2475400600

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A1779001304

Door Module Mercedes C118 W177 W247 Front Left N/S Control Unit A1779001304

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A1718204926

Mercedes SLK R171 Roadster Soft Top Folding Roof Control Module A1718204926

€56.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2469009112

Control Unit Mercedes W176 W246 Body Control Module BCM ECU A2469009112

€44.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A1729060205-1

Mercedes SLK R172 Rear SAM Fuse Relay Box Control Unit Module A1729060205

€89.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2479009412

Bluetooth Module Mercedes W247 W447 Multimedia Control Unit ECU A2479009412

€47.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2078201989

Mercedes-Benz W207 A207 Radio Aerial Antenna Amplifier Module Unit A2078201989

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A1669008009

Mercedes GLE W166 Rear Door Wiring Control Module Right O/S Unit ECU A1669008009

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2469003114

Transmission Module Mercedes W176 W246 Control Unit ECU A2469003114

€42.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A6394409909

Wiring Loom Mercedes W639 Vito Cable Sliding Door Rear Left N/S A6394409909

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A1679001320

Ignition Module Mercedes V177 Electronic Ignition Switch Keyless Control Unit

€80.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A0009008004

Parking Module Mercedes W207 W212 PDC Distance Control Unit ECU A0009008004

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2035450803-1

Mercedes CL203 W203 Battery Terminal Fuse Box Control Unit Module A2035450803

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A1698209126

Door Module Mercedes W169 W245 Rear Left N/S Control Unit A1698209126

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A1715403932

Mercedes SLK R171 Rear Bumper PDC Wiring Loom Parking Sensor Cable A1715403932

€37.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2054402834

Mercedes W205 Parking Sensor Wiring Rear Bumper PDC Loom Cable A2054402834

€56.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A6519007500-4

Mercedes W204 C250 CDI BlueEFFICIENCY OM651.911 Engine ECU A6519007500 Automatic

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2055409750

Door Harness Mercedes W205 Rear Left N/S Door Wiring Loom A2055409750

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A1648204189

Mercedes ML W164 Remote Control DVD Media Entertainment Display A1648204189

€113.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A1776204201

Mercedes C118 W177 W247 Battery Box Trim Housing Cover Support A1776204201

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2195404505

Mercedes C219 Coupe Front Bumper Parking Sensor PDC Wiring Harness A2195404505

€89.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2229000016

Entry Module Mercedes C253 W205 W213 C238 Keyless Go Control Unit A2229000016

€56.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2229003210

Mercedes W205 Head Unit Audio Player Radio Sat Nav Module A2229003210

€37.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2048205864-1

Mercedes W204 Rear Tail Light Wire Plug Socket Cable Right O/S A2048205864

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2049009301

Mercedes W212 Media Interface Control Unit Module Multimedia A2049009301

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A1179001801

Mercedes W176 Air Module System Control Unit Module ECU A1179001801

€42.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2474703702

Mercedes W177 W247 Solenoid Valve Line Pipe Hose Starter A2474703702

€42.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A1679004712

Bluetooth Module Mercedes W205 W213 W222 W238 Control Unit ECU A1679004712

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2057200522

Mercedes GLC X253 Front Door Trim Cover Panel Strip Left N/S Black A2057200522

€66.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2229003308

Mercedes W222 W205 S205 Keyless Entry Control Module ECU A2229003308

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2079003700

Mercedes C207 Door Module Rear Left N/S Control Unit ECU A2079003700

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A9069006503

Door Module Mercedes W906 Front Left Right N/O/S Control Unit ECU A9069006503

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2469008510

Body Control Module Mercedes W117 W176 W242 W246 Fuse Box Sam A2469008510

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2049005205

Mercedes W204 Dashboard Stereo Display Screen Sat Nav Multimedia A2049005205

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A0009009213

Mercedes W447 Fuel Pump Control Module A0009009213

€85.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A0009828223-1

Mercedes W213 Power Relay 4 Pin 12V Hella A0009828223 SET x2

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2649060400

Mercedes W205 W257 Starter Engine Motor A2649060400

€113.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2044405935

Mercedes W204 Door Card Harness Loom Cable Wiring Front Left N/S A2044405935

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A1669003501

Mercedes W166 Switch Rotary Selector Controller Navigation Radio A1669003501

€37.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A0009068705

Mercedes S205 Negative Battery Cable Terminal Clamp Wire A0009068705

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2129004206

Door Module Mercedes W212 E-Class Rear Right O/S Control Unit A2129004206

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A1779001203

Mercedes W177 Door Control Module Rear Left Right N/O/S A1779001203

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

...

Showing 298-396 of 4498 products