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 W204 Exhaust Pipe Connector Clamp Holder M274 Petrol A0009951033

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A2025402373-2

Mercedes W169 W203 W211 2 OBD Diagnostic Plug Cover A2025402373

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A2479009312

Mercedes W910 Telematics Module Communication Blutooth Control A2479009312

€80.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A2124405433

Mercedes W212 Wiring Harness Right Front Door Control Unit Right O/S A2124405433

€89.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A2195406207

PDC Wiring Mercedes W211 W219 Front Bumper Parking Sensor Loom Cable A2195406207

€75.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A1665400224

Mercedes W166 C292 Fuse Relay Box Cover Trim Panel Lid Housing A1665400224

€42.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A2079053300

Mercedes-Benz W207 Cabrio A207 Rear Left N/S Radio Aerial Antenna Amplifier

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A2098200326

Mercedes C209 Body Control Module Unit Temic 376 800 GZ A2098200326

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A2513200158-1

Valve Block Mercedes W251 W906 Air Suspension Control Unit Module A2513200158

€32.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A2059007147-1

Mercedes W205 C200 264.915 198HP Engine Control ECU Kit A2649000700 Automatic

€560.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A2049013502

Mercedes W204 S204 Air Module SRS Control Unit ECU A2049013502

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A1645400074

Mercedes W164 W251 Front Seat Wiring Loom Harness Left N/S A1645400074

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A9065410040

Mercedes Sprinter W906 Battery Bracket Mount Carrier Support A9065410040

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A9078209400

Mercedes Sprinter W907 W910 Radio Stereo Player Head Unit A9078209400

€104.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A2218203375

Mercedes W221 Bluetooth Antenna AMP Amplifier Module A2218203375

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A0009002201

Mercedes R172 W204 W212 C218 Fuel Pump Module Control Unit A0009002201

€32.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A2205404408

Mercedes W220 Door Exit Wiring Loom Cable Connector Left Right N/O/S A2205404408

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A2128270228-SEL

Mercedes W212 Roof Antenna Amplifier Shark Selenite Grey - 992 A2128270228

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A1698204726

Mercedes-Benz A-Class W169 Rear Left Door N/S Control Unit Module A1698204726

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A2469017000

Mercedes W176 Windscreen Rain Sensor Unit Module A2469017000

€32.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A2125455640

Mercedes W212 Battery Holder Mount Bracket Support E-Class A2125455640

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A1715405045-1

Mercedes SLK R171 Central Gateway Module ECU Control Unit A1715405045

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A2711504733

Mercedes W204 Injection Electrical Wiring M271 Petrol Engine Cable A2711504733

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A1765450000

Mercedes-Benz A-Class W176 Bluetooth Unit Module Bracket Holder A1765450000

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A0045468440

Mercedes W177 Power Distributor Connector Plug Unit A0045468440

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A2129006417-1

Mercedes W207 W212 Radio Head Unit CD Player Control Panel Switch A2129006417

€85.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A0045428718-BEB

Mercedes R171 W203 Parking Distance Sensor PDC Benitoite Blue - 950 A0045428718

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A2125403005

Mercedes W212 M271 Wiring Battery Alternator Starter Harness Cable A2125403005

€113.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A6429002900-11

Mercedes W164 ML300 OM642.820 204HP Engine Control ECU Kit A6429002900 Automatic

€332.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A2048708026

Mercedes W204 Media Interface Control Unit Module ECU A2048708026

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A2128208826

Mercedes W212 Door Control Module Unit ECU Rear Right O/S A2128208826

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A2048700594-1

Mercedes W204 Radio Player COMAND Navi CD Head Unit A2048700594

€94.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A2465401950

Battery Base Mercedes C117 W176 W246 Power Fuse Relay Box A2465401950

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A2389055000

Mercedes W205 Antenna Aerial Amplifier Duplexer Module Receiver Unit A2389055000

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A2055402850

C205 Fuse Box Mercedes C205 Electrical Interior Relay Fuse Socket Control A2055402850

€32.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A2429004801

Mercedes W176 W204 W212 Telematics Communication Control Unit Module A2429004801

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A6081550035

Mercedes W177 Alternator Mounting Bracket Carrier A6081550035

€66.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A1665402709

Mercedes W166 Automatic Gearbox Wiring Loom Harness Cable A1665402709

€42.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A2218706887

Mercedes W221 Head Unit Multimedia TV Player CD Changer Inverter A1679001014

€569.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 127073X

Mercedes W176 Electrical Wiring Loom Harness Cable 127073X

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A9065451640

Mercedes-Benz Sprinter W906 Fuse Box Unit Holder Bracket Frame A9065451640

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A2118201626

Mercedes S211 W211 Rear Door Control Unit Right O/S A2118201626

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A1331510745

Mercedes C117 CLA 45 AMG Heat Shield Alternator Plate Petrol M133 A1331510745

€28.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A2035405707

Mercedes-Benz CL203 Front Left Right Door Wiring Loom Harness A2035405707

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A2045451047

Control Unit Bracket Mercedes W204 W212 Audio Module Holder Mount A2045451047

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 4L0907282B

Audi A7 4G8 Glow Plug Control Unit Controller Module 4L0907282B

€70.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A6519003701-3

Mercedes W212 OM651.924 204HP Engine Control ECU Kit A6519003701 Automatic

€189.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A2518703390

Mercedes W251 Rear Passengers Entertainment Control Unit A2518703390

€70.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A0001501780

Ignition Coil Mercedes W202 W203 M111 Cable Connector A0001501780

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A2749000800-1

Mercedes W205 C200 274.920 184HP Engine ECU Kit A2749000800 Key Lock Automatic

€222.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A2465410100

Mercedes W176 W246 Battery Cover Accumulator Trim Panel Lid A2465410100

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A2195406007

Mercedes CLS W219 PDC Wiring Rear Bumper Parking Sensor Loom Cable A2195406007

€28.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A0065454601

Energy Distributor Mercedes W204 OM656 Power Control Unit Module A0065454601

€32.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A2034450000

Mercedes Vito W639 Gateway Control Unit Module A2034450000

€28.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A2519000800

Mercedes W251 PDC Parking Assistant Control Unit Module ECU A2519000800

€56.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A2469005413-1

Mercedes C117 Head Unit Radio Player Control Module Becker A2469005413

€379.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A1669005412

Mercedes W166 Door Module Rear Left N/S Control Unit ECU A1669005412

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A0025421219

Mercedes W168 W203 W211 Relay 6-Pin Black Tyco A0025421219

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A1179008700

Mercedes GLA X156 Air Module Safety Belt Tensioner Unit Control A1179008700

€94.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A6421508900-6

Mercedes W207 E350 OM642.838 Engine Control Unit ECU Kit A6421508900 Automatic

€408.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A0009050410

Mercedes W176 W205 C207 W212 Front Radar Distance Sensor Unit Module A0009050410

€142.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A2129008729

Mercedes W176 W207 W212 Keyless Module ECU Door Lock Control Unit A2129008729

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A2079057501

Mercedes E-Class W207 Cabrio A207 ITS Camera Control Unit Module ECU

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A2055404596

Mercedes W205 Electrical Ground Line Wire Earth Cable A2055404596

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A9075404687-1

Mercedes W907 Battery Cable Alternator Wiring Loom Harness Cabling A9075404687

€113.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A2045409907

Mercedes W204 Battery Wiring Cable Harness Loom A2045409907

€28.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A2535401001

Battery Cable Mercedes C238 C253 Starter Alternator Wiring Harness A2535401001

€42.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A0025463141

Mercedes A209 C209 Line Connector Terminal Point Positive Lead Fuse A0025463141

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A2048207885

Mercedes-Benz C-Class W204 Rear Right Door O/S Control Unit Module A2048207885

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A2074405734

Mercedes W207 Wiring Loom Harness Cable A2074405734

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A2579006600

Mercedes C118 W167 W177 W205 W213 C238 Communication Module Unit A2579006600

€222.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A6519003203-2

Mercedes W906 313 CDI OM651.955 129HP Engine ECU Kit A6519003203 Automatic

€389.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A6519007401

Mercedes W212 E250CDI Blue Efficiency OM651 204HP Engine Module ECU A6519007401

€89.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A2115454840

Mercedes E-Class S211 W211 Battery Tray Holder Mounting Bracket A2115454840

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A2649000700-5

Mercedes W205 C 200 264915 197HP Engine Control ECU Module A2649000700 Automatic

€246.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A6519007500-28

Mercedes C207 E220CDI Engine Unit ECU 170HP 2.1 Diesel Automatic A6519007500 KIT

€170.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A4159066300

Mercedes W415 Starter Motor Diesel 607951 A4159066300

€47.95

Free delivery: Sep 22 – 24

If paid before 14:00

Part no. A2198200326

Door Module Mercedes C219 Rear Door Right O/S Control Module A2198200326

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A1668200075

Mercedes W205 Aerial Antenna Control Unit Keyless Go Entry A1668200075

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. 284B13867R

Mercedes Citan W415 Renault Kangoo BCM Body Control Module Unit ECU 284B13867R

€66.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A2198200164-1

Mercedes C219 Rear Lamp Left N/S Tail Light Taillight Loom Harness A2198200164

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A1718200004

Mercedes R171 Wiring Harness Loom Cable Ventilation Driver Side A1718200004

€47.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A2535405429

Mercedes C253 OM656 Diesel Engine Motor Wiring Loom Cable Harness A2535405429

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A2469006710

Radio CD Player Mercedes W176 W246 COMAND Nav Sat Head Unit A2469006710

€80.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A2115460580

Wiring Holder Mercedes W211 Cable Loom Harness Cover Channel A2115460580

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A1644400837

Mercedes W164 Parking Sensor Wiring Loom Cable Harness Front PDC A1644400837

€80.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A2125400382

Mercedes W212 Cover Fuse Box Trim Panel Lid A2125400382

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A2038202285

Mercedes-Benz C-Class W203 Door Control Module Right Rear O/S A2038202285

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A2034400033

Mercedes CLC CL203 Wiring Loom Cable Door Front Left Right N/O/S A2034400033

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A2124405806

Mercedes W204 W212 Travel Monitor Sensor Wiring Loom Harness Cable A2124405806

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A2055455100

Mercedes W205 W213 C238 Power Distribution Unit Busbar Connector A2055455100

€37.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A2129004711

Mercedes W204 W212 Front Fuse Box Relay Control Unit SAM Module A2129004711

€232.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A6519009002

Mercedes W212 E300 BlueTEC Hybrid 204HP Engine Control Module ECU A6519009002

€113.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A1175401205

Mercedes C117 Drivers Door Wiring Harness A1175401205

€28.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A0038206926

Mercedes W221 Door Control Module Unit ECU Rear Left N/S A0038206926

€47.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A2709002100-18

Mercedes W176 A45 4-Matic M133.980 Engine Control ECU Kit Automatic A2709002100

€503.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A2115452647

Bracket Mount Mercedes W211 W219 Control Unit Module SAM Holder A2115452647

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A2125420018-MG1

Mercedes W169 W245 W204 W212 Parking Sensor PDC Set x2 Mountain Grey - 787

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

Part no. A1698207426

Mercedes-Benz A B Class W169 W245 Door Control Unit Right O/S Rear A1698207426

€23.95

Free delivery: Sep 23 – 24

If paid before 14:00

...

Showing 1684-1782 of 4382 products