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

Module Mercedes SLK R171 Automatic Transmission Control Module A0005457916

Product currently unavailable

Part no. A6079002200-5

Mercedes W176 A180 CDI OM607.951 BE 109HP Engine ECU A6079002200 Manual

Product currently unavailable

Part no. A2045450169

Mercedes W204 SAM Module Fuse Box Relay Control Unit A2045450169

Product currently unavailable

Part no. A2045458201

Mercedes W204 Rear Fuse Box Relay SAM Control Unit Module A2045458201

Product currently unavailable

Part no. A0325456926

Mercedes W176 W205 Exhaust Control Valve Flap Actuator Module Unit A0325456926

Product currently unavailable

Part no. A2118704390

TV Tuner Mercedes ML W164 W211 CLS C219 Video Control Unit Module A2118704390

Product currently unavailable

Part no. P04727770AC

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

Product currently unavailable

Part no. A0028202426

Mercedes W211 Xenon Headlight Level Control Module A0028202426

Product currently unavailable

Part no. A2305450132

Mercedes C215 W220 R230 Keyless Entry Control Module ECU A2305450132

Product currently unavailable

Mercedes W163 W169 W203 W210 Relay 5-Pin Yellow TYCO A0025421419

-5%

Part no. A0025421419

Mercedes W163 W169 W203 W210 Relay 5-Pin Yellow TYCO A0025421419

Product currently unavailable

Part no. A6519062800

Starter Mercedes W204 W212 W906 Diesel OM651 Starter Motor Bosch A6519062800

Product currently unavailable

Part no. A2055450901

Mercedes C205 Cable Contact Guide Battery Clamp Unit A2055450901

Product currently unavailable

Part no. A2469003519

Mercedes W176 W246 Radio COMAND Nav CD Player Control Head Unit A2469003519

Product currently unavailable

Part no. A2479002516

Mercedes C253 Windscreen Camera Control Unit Module A2479002516

Product currently unavailable

Part no. A2661540902

Alternator Generator Mercedes W169 W245 Engine 115A 14V A2661540902

Product currently unavailable

Part no. A2055404982

Mercedes W205 Charging Plug Socket Wiring Cable A2055404982

Product currently unavailable

Part no. A0255453232

Mercedes W168 W210 Module Control Unit Electric Fan ESG A0255453232

Product currently unavailable

Part no. A2118208285

Mercedes W211 Door Module Front Right O/S Driver Control Unit ECU A2118208285

Product currently unavailable

Part no. A2315401050

Mercedes SL63 R231 Roadster Fuse Box Passenger Footwell Fuse Box A2315401050

Product currently unavailable

Part no. A2229001912

Mercedes W205 C253 Door Module Rear Left N/S Control Unit ECU A2229001912

Product currently unavailable

Part no. A2129008107

Mercedes W204 Front SAM Fuse Relay Box Control Unit Module A2129008107

Product currently unavailable

Part no. A2118208185

Mercedes W211 Door Module Front Left N/S Driver Control Unit ECU A2118208185

Product currently unavailable

Part no. N000000003996

Mercedes Universal Fuse Relay Electrical Unit Set Bag N000000 003996

Product currently unavailable

Part no. A6519005301

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

Product currently unavailable

Part no. A0315450932

Mercedes C215 W220 ESP Electronic Stability Control Unit Module A0315450932

Product currently unavailable

Part no. A6461536579

Mercedes-Benz W203 W210 Sprinter W906 Glow Plug Relay A6461536579

Product currently unavailable

Part no. A1669001311

Air Module Mercedes ML W166 Interior Safety SRS Control Module A1669001311

Product currently unavailable

Part no. A2038703389

Mercedes W203 W209 W639 CD 6 Disc Changer With Magazine A2038703389

Product currently unavailable

Part no. A2229067403

Mercedes W177 W247 M260 Exhaust Control Valve Flap Actuator Drive A2229067403

Product currently unavailable

Part no. A1645403272

Mercedes ML W164 Fuse Box Relay Control Unit Module A1645403272

Product currently unavailable

Part no. A6511505320

Mercedes Sprinter W906 Engine Wiring Loom Harness Cable CDI Diesel A6515460161

Product currently unavailable

Part no. A2098202426

Mercedes W203 S203 C203 C209 W220 Light Rain Sensor Control Unit A2098202426

Product currently unavailable

Part no. A2465407632

Battery Cable Mercedes W176 W246 Positive Wiring Starter Harness A2465407632

Product currently unavailable

Part no. A2535402605

Mercedes GLC X253 Rear Bumper Wiring Loom PDC Harness Parking Sensor A2535402605

Product currently unavailable

Part no. A2479008306

Mercedes W177 W205 W213 Windscreen Camera Front Windshield Cam Unit A2479008306

Product currently unavailable

Part no. A6401508334

Mercedes W245 B200 CDI OM640.941 140HP Engine ECU Kit A6401508334 Key

Product currently unavailable

Part no. A2054403008

Mercedes W205 X253 Wiring Cable Harness Center Console A2054403008

Product currently unavailable

Part no. A1775401629-1

Mercedes W177 Rear Bumper PDC Wiring Loom Parking Sensor A1775401629

Product currently unavailable

Part no. A2059000327

Mercedes C205 Differential Lock Control Module Unit ECU A2059000327

Product currently unavailable

Part no. A0009062700-1

Mercedes W639 W906 W907 OM642 Diesel Engine Alternator Generator A0009062700

Product currently unavailable

Part no. A6394405109

Mercedes Vito W639 Wiring Harness Rear Boot Trunk Lid Tailgate Loom A6394405109

Product currently unavailable

Mercedes W207 Automatic Gearbox Module EGS Control Unit ECU A0015452516

-40%

Part no. A0015452516

Mercedes W207 Automatic Gearbox Module EGS Control Unit ECU A0015452516

Product currently unavailable

Part no. A6461503278

Mercedes Vito W639 OM646.982 109HP Engine Module ECU Unit A6461503278 Manual

Product currently unavailable

Part no. A0051516601

Starter Motor Mercedes W203 W209 W211 W906 Engine Diesel A0051516601

Product currently unavailable

Part no. A2035400330

Mercedes W203 Kompressor M271 Positive Battery Cable A2035400330

Product currently unavailable

Part no. A2535403718

Mercedes X253 Rear Bumper Electrical Wiring Harness A2535403718

Product currently unavailable

Part no. A2229002713

Mercedes W222 W205 Electric Parking Brake Control Module ECU A2229002713

Product currently unavailable

Part no. A0018276604

Mercedes W207 Connection Media Interface Cable AUX Wire A0018276604

Product currently unavailable

Part no. A0005429223

Mercedes-Benz C CLK W202 W208 Right O/S Parking System Warning Display Screen

Product currently unavailable

Part no. A2539005906

Mercedes C253 Body Control Module Temic A2539005906

Product currently unavailable

Part no. A6519000700-2

Mercedes W906 313 CDI OM651.955 129HP Diesel Engine ECU Kit A6519000700 Key Lock

Product currently unavailable

Part no. A2049069701-1

Mercedes W204 Radio Player Audio 20 Navi CD Player Head Unit A2049069701

Product currently unavailable

Part no. A6519007500-26

Mercedes W204 W212 C220CDI 170HP OM651.911 Engine Control ECU A6519007500 Manual

Product currently unavailable

Part no. A1775405710

Parking Sensor Wiring Mercedes W177 W247 Rear Bumper PDC Loom Cable A1775405710

Product currently unavailable

Part no. A1698207826

Airbag Module Mercedes W169 W245 Air Bag Sensor Control Unit ECU A1698207826

Product currently unavailable

Part no. A6549001300

Glow Plug Relay Mercedes W213 C238 Diesel OM654 Preglow Module A6549001300

Product currently unavailable

Part no. A9079060100

Mercedes Sprinter W907 Battery Power Distributor Current Limiter A9079060100

Product currently unavailable

Part no. A2711504279

Mercedes W204 C180 156HP Kompressor M271.910 Engine ECU A2711504279 Manual

Product currently unavailable

Part no. A2129002213

Mercedes W212 C218 Dashboard Dash Navigation Central Display Screen A2129002213

Product currently unavailable

Part no. A1729005507-1

Mercedes R172 Head Unit Radio CD Player Multimedia Audio A1729005507

Product currently unavailable

Part no. A6461541102

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

Product currently unavailable

Part no. A2479001506

Mercedes C118 W177 W247 Body Control Module BCM V2 A2479001506

Product currently unavailable

Part no. A2118704085

Seat Module Mercedes W203 W211 Control Unit Front Left Right N/O/S A2118704085

Product currently unavailable

Part no. A0009000346

Mercedes W177 Engine Alternator Generator M282 A0009000346

Product currently unavailable

Part no. A2049000902-1

Fuse Box Mercedes W204 Rear SAM Relay Fuse Box Control Module A2049000902

Product currently unavailable

Part no. A0305454932

Mercedes-Benz E W210 Estate CDI Gearbox Control Module Unit ECU A0305454932

Product currently unavailable

Module Mercedes W205 Drivetrain Gearbox Control Module Unit A2139004119

-40%

Part no. A2139004119

Module Mercedes W205 Drivetrain Gearbox Control Module Unit A2139004119

Product currently unavailable

Part no. A1669008808

Mercedes W212 Becker Navigation Map Pilot Control Unit Module A1669008808

Product currently unavailable

Part no. A1695405645-2

Mercedes W169 SAM Control Module Fuse Box Unit A1695405645

Product currently unavailable

Part no. A6429002900-7

Mercedes W204 C350 CDI OM642.830 Engine Module ECU Kit A6429002900 Key + Lock

Product currently unavailable

Part no. A2139008822

Air Module Mercedes W213 C238 Control Unit Module ECU A2139008822

Product currently unavailable

Part no. A2139058101

Mercedes C118 C253 Rear Bumper Switch Sensor Module A2139058101

Product currently unavailable

Part no. A6421501500-2

Mercedes W639 3.0CDI OM642.990 Engine Control Unit ECU Kit A6421501500 Key Lock

Product currently unavailable

Part no. A0045450405

Mercedes W169 W203 W639 W906 Relay 5-Pins Green Control Unit 12V A0045450405

Product currently unavailable

Part no. A0215455632

Mercedes Sprinter W901 OM602 Engine Control Unit ECU Module A0215455632 Manual

Product currently unavailable

Part no. A2098204189

Mercedes-Benz CLK-Class C209 W209 Aerial Antenna Amplifier Unit A2098204189

Product currently unavailable

Part no. A2034400033-2

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

Product currently unavailable

Part no. A2215402250

Mercedes W221 SAM Relay Fuse Box Module Control Unit ECU A2215402250

Product currently unavailable

Part no. A6397600204

Bowden Cable Mercedes W639 Door Handle Catch Top Rear Right O/S Wire A6397600204

Product currently unavailable

Part no. A2539000100

Rain Light Sensor Mercedes X253 Windschield Sensor Module Unit A2539000100

Product currently unavailable

Part no. A2049005903-1

Mercedes W204 Navigation CD Player COMAND Radio Sat Nav Head Unit A2049005903

Product currently unavailable

Part no. A1695420518-KMG

Mercedes W245 Front Bumper PDC Parking Distance Sensor Comet Grey - 748

Product currently unavailable

Part no. A1729008412

Mercedes SLK R172 Roadster Folding Vario Roof Control Module A1729008412

Product currently unavailable

Part no. A6402002770

Alternator Belt Tensioner Mercedes W169 W245 OM640 Diesel Holder Mounting Panel

Product currently unavailable

Part no. A0009004436

Mercedes C118 C205 C253 Automatic Gearbox Control Unit Module ECU A0009008324

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. A2035400050

Fuse Box Mercedes SLK R171 W203 W209 Front Relay Control Unit A2035400050

Product currently unavailable

Part no. A0009056121

Mercedes W118 W177 W247 Front Radar Distance Control Unit Module A0009056121

Product currently unavailable

Part no. A2098205489-1

Mercedes W209 Radio Head Unit Media Player Navigation Screen A2098205489

Product currently unavailable

Part no. A2048702826

Mercedes S204 Module Control Unit Trunk Lid Rear Tailgate Lift A2048702826

Product currently unavailable

Part no. A2115406445

Mercedes C219 Gearbox Electronic Control Unit Module A2115406445

Product currently unavailable

Part no. A6549009400

Mercedes W447 W907 W910 Engine Control Unit Module ECU A6549009400

Product currently unavailable

Part no. A1644403801

Mercedes ML350 W164 Gateway ECU Control Module Unit A1644403801

Product currently unavailable

Part no. A2469067901-1

Battery Positive Mercedes C117 W176 W246 Plus Pole Terminal Lead A2469067901

Product currently unavailable

Part no. A6394640018

Mercedes Vito Viano W639 Steering Wheel Slip Squib Ring A6394640018

Product currently unavailable

SAM Module Mercedes W177 W247 Front SAM Body Comfort Control Unit A2479008607

-40%

Part no. A2479008607

SAM Module Mercedes W177 W247 Front SAM Body Comfort Control Unit A2479008607

Product currently unavailable

Part no. A1179062500-2

Mercedes C117 Rear Tail Light Lamp LED Left N/S Wire Cable Harness A1179062500

Product currently unavailable

Part no. A2098203026

Mercedes CLK W209 Convertible Rain Light Sensor Windscreen Module A2098203026

Product currently unavailable

Part no. A2139007939

Mercedes W167 W177 W247 Headlight Ballast Control Module Right O/S A2139007939

Product currently unavailable

...

Showing 2872-2970 of 4321 products