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 W164 ML 280 CDI 642.940 190HP Engine Unit ECU Kit A6421509678 Key Lock

Product currently unavailable

Part no. A1669002906

Mercedes W204 Headlight Range Control Unit Module ECU A1669002906

Product currently unavailable

Part no. A2319003606

Mercedes R231 Seat Control Unit Module Driver A2319003606

Product currently unavailable

Part no. A9065453001

Mercedes W906 Fuse Box SAM Relay Control Unit Module A9065453001

Product currently unavailable

Part no. A2129008224

Headlight Control Module Mercedes W207 W212 Unit A2129008224

Product currently unavailable

Part no. A1648207926

Mercedes ML W164 Air Module SRS Control Unit ECU A1648207926

Product currently unavailable

Part no. A2105401031

Mercedes-Benz E-Class W210 Battery Ground Earth Strap Cable Wiring A2105401031

Product currently unavailable

Part no. A2115402105

Battery Cable Mercedes W211 Starter Alternator Wiring Harness A2115402105

Product currently unavailable

Part no. A6461501077

Mercedes Vito W639 OM646.980 Engine ECU Control Unit Module A6461501077 Manual

Product currently unavailable

Part no. A2469000012-1

Mercedes W176 W246 Radio Head Unit COMAND Navi Player Control Unit A2469000012

Product currently unavailable

Part no. A1669003501

Mercedes W166 Switch Rotary Selector Controller Navigation Radio A1669003501

Product currently unavailable

Part no. A2079005000

Mercedes A207 Convertible Roof Top Control Unit Module ECU A1718204226

Product currently unavailable

Part no. A6519000700

Mercedes W906 313 CDI OM651.955 129HP Diesel Engine ECU A6519000700 Manual

Product currently unavailable

Part no. A6421540402-3

Mercedes W164 W204 W211 OM642 Diesel Alternator Generator Lucas A6421540402

Product currently unavailable

Part no. A2909003001-1

Mercedes C238 Transfer Case Torque Distribution Control ECU E53 4matic

Product currently unavailable

Part no. A0009061903-1

Mercedes W176 W242 W246 Alternator Generator Bosch A180 Petrol A0009061903

Product currently unavailable

Part no. A6079002200-3

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

Product currently unavailable

Part no. A2124400613

Wiring Harness Mercedes W212 Dashboard Dash Wiring Cable A2124400613

Product currently unavailable

Part no. A2465407732

Battery Cable Mercedes W176 W246 Positive Wiring Starter Harness A2465407732

Product currently unavailable

Part no. A2045401706

Mercedes W204 Front Left Right N/O/S Seat Wiring Loom Cable Harness A2045401706

Product currently unavailable

Part no. A2219009603

Mercedes W221 Air Suspension ABC Control Unit Module A2219009603

Product currently unavailable

Part no. A1669067701

Mercedes ML W166 GLE C292 Relay Current Power Limiter Fuse Box A1669067701

Product currently unavailable

Part no. A2098700289

Mercedes CLK W209 Radio CD Player Stereo Audio Head Unit A2098700289

Product currently unavailable

Part no. A2129004201

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

Product currently unavailable

Part no. A2711502779-2

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

Product currently unavailable

Part no. A2711505533

Mercedes W204 Petrol Engine M271 Engine Wiring Harnes A2711505533

Product currently unavailable

Part no. A2229001614

Module Mercedes C205 Front Door Right O/S Control Module Unit A2229001614

Product currently unavailable

Part no. A9064407655

Mercedes W906 Bumper Wiring Harness Parktronic PDC Cable Wire Rear A9064407655

Product currently unavailable

Part no. A6421508100-1

Mercedes W251 R 350 CDI 642.950 224HP Engine Unit ECU Kit A6421508100 Key Lock

Product currently unavailable

Part no. A6461540002-1

Alternator Mercedes Sprinter W906 Diesel OM646 Engine Alternator A6461540002

Product currently unavailable

Part no. A2139008822-1

Air Module Mercedes W213 C238 Control Unit Module ECU A2139008822

Product currently unavailable

Part no. A6110780149

Mercedes-Benz M-Class ML W163 Pressure Regulation Valve Fuel A6110780149

Product currently unavailable

Part no. A2229009708

Mercedes W205 Body Control Comfort Unit Module BCM Unit ECU A2229009708

Product currently unavailable

Part no. A2215407045

Mercedes W221 Gateway Control Unit Module ECU A2215407045

Product currently unavailable

Part no. A2028001448

Mercedes W202 Central Locking Vacuum Pump Control Unit A2028001448

Product currently unavailable

Part no. A1729006903

Seat Module Mercedes W204 W212 Control Unit Front Left Right N/O/S A1729006903

Product currently unavailable

Part no. A2479006804

Mercedes W205 Multi-Purpose Windscreen Camera Control Unit Module A2479006804

Product currently unavailable

Part no. A6398200186

CD Radio Mercedes W639 W906 Audio Stereo Head Unit A6398200186

Product currently unavailable

Part no. A2035453801-1

Mercedes W203 W209 Fuse Box Rear SAM Module Relay Control Unit A2035453801

Product currently unavailable

Part no. A1645403462

Mercedes W164 Gateway Control Unit Gateway Module ECU A1645403462

Product currently unavailable

Part no. A2035451601

Mercedes W203 Fuse Box Relay SAM Control Module A2035451601

Product currently unavailable

Part no. A6461502720

Mercedes Vito W639 OM646 Diesel Engine Wiring Cable Loom Harness A6461501388

Product currently unavailable

Part no. A6395400050

Mercedes Vito W639 Battery Terminal Fuse Box Control Unit Module A6395400050

Product currently unavailable

Part no. A0999000400

Steering Lock Mercedes W176 W246 Control Unit Module VST A0999000400

Product currently unavailable

Part no. A2198202026

Door Module Mercedes C219 Front Door Right O/S Control Unit A2198202026

Product currently unavailable

Part no. A2469001317

Mercedes-Benz A B W176 W246 160 180 CDI Transmission Control Unit Module ECU

Product currently unavailable

Mercedes W202 W208 R129 Alternator 14V 115A 0101543202 0123510068

-1%

Part no. A0101543202

Mercedes W202 W208 R129 Alternator 14V 115A 0101543202 0123510068

Product currently unavailable

Part no. A2059007845

SAM Module Mercedes W205 GLC X253 Front Body Comfort Control Unit A2059007845

Product currently unavailable

Part no. A4479052505

Mercedes Vito W447 Rain Light Sensor Windscreen Control Unit A4479052505

Product currently unavailable

Part no. A2218708826

Mercedes W203 W221 Wind Screen Wind Shield Rain Sensor Unit A2218708826

Product currently unavailable

Part no. A1405400282

Mercedes C140 Fuse Box Relay Cover Lid Control Unit Bracket Trim A1405400282

Product currently unavailable

Part no. A0009051302

Mercedes W166 W176 W246 Radar Sensor Front Control Unit Module A0009051302

Product currently unavailable

Part no. A2045421118

Mercedes W204 W451 Negative Cable Battery Terminal Wiring A2045421518

Product currently unavailable

Part no. A0061515601

Mercedes ML W164 W211 W221 Engine Starter Motor A0061515601 0001109262

Product currently unavailable

Part no. A2115456532

SAM Module Mercedes W211 C219 Front Body Comfort Control Unit ECU A2115456532

Product currently unavailable

Part no. A2049000902

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

Product currently unavailable

Part no. A0045420418

Mercedes-Benz C CLK Class W203 C209 ESP Yaw Rotation Rate Sensor A0045420418

Product currently unavailable

Part no. A2135403038

Fuse Box Mercedes W205 W213 C238 Relay Module Control Unit A2135403038

Product currently unavailable

Part no. A2139000124

Mercedes W213 W222 C257 Amplifier Module Audio Burmester A2139000124

Product currently unavailable

Part no. A2219006404-1

Mercedes W221 Door Module Front Right O/S Control Unit ECU A2219006404

Product currently unavailable

Part no. A2469002318-1

Radio Head Unit Mercedes W176 Media Player Navigation Unit A2469002318

Product currently unavailable

Part no. A1718207226

Mercedes SLK R171 Door Module Front Right Control Unit ECU A1718207226

Product currently unavailable

Part no. A0055461040

Energy Distributor Mercedes W204 W212 W906 Power Block Control Unit A0055461040

Product currently unavailable

Part no. A0275450132

Mercedes W202 W210 Automatic Gearbox EGS Control Unit Module ECU A0275450132

Product currently unavailable

Part no. A2129005212-1

Head Unit Mercedes W212 Radio Navi CD Player For Parts Not Working A2129005212

Product currently unavailable

Part no. A1669055901

Mercedes C292 Negative Cable Battery Terminal Sensor A1669055901

Product currently unavailable

Part no. A0045425218

Mercedes W221 Blind Spot Radar Sensor Module Control Unit A0045425218

Product currently unavailable

Part no. A0038207326

Mercedes W221 Rear Door Module Control Unit Left N/S ECU A0038207326

Product currently unavailable

Part no. A0015429018

Yaw Sensor Mercedes W210 W220 ESP Rotation Rate Control Unit Module A0015429018

Product currently unavailable

Part no. A2319003706

Mercedes R231 Control Unit Module Passenger Seat A2319003706

Product currently unavailable

Part no. A6421501500-1

Mercedes W639 120CDI OM642.990 Engine Control Unit ECU Kit A6421501500 Key Lock

Product currently unavailable

Part no. A0049820008

Mercedes W166 W221 Auxiliary Additional Generator Battery A0049820008

Product currently unavailable

Part no. A1669002307

Mercedes ML W166 PDC Parking Distance Control Unit Module Sensor A1669002307

Product currently unavailable

Part no. A6399003200

Mercedes Vito W639 Door Module Front Right O/S Control Unit ECU A6399003200

Product currently unavailable

Part no. A2059004607

Mercedes W205 S205 W447 Seat Module Front Memory Control Unit A2059004607

Product currently unavailable

Part no. A0131541002

Mercedes-Benz Vito Viano W639 Alternator Generator Diesel 200A A0131541002

Product currently unavailable

Part no. A2059001311

Mercedes W205 Door Module Front Left N/S Control Unit ECU A2059001311

Product currently unavailable

Part no. A0131540002

Alternator Mercedes W203 Diesel OM648 OM646 Engine ALternator 200A A0131540002

Product currently unavailable

Part no. A1665405515

Mercedes GLE C292 Coupe Front Bumper Wiring Harness A1665405515

Product currently unavailable

Part no. RHD-A1664404337

Mercedes C292 Positive Cable Battery Starter Alternator Plus Wiring A1664404337

Product currently unavailable

Part no. A1699002400

Mercedes W169 CD Navi Media Player Radio COMAND Head Unit A1699002400

Product currently unavailable

Part no. A2115457332

Mercedes W211 PDC Parking Sensor Module Control Unit A2115457332

Product currently unavailable

Part no. A6397600104

Bowden Cable Mercedes W639 Vito Door Handle Catch Top Rear Left Wire A6397600104

Product currently unavailable

Part no. A6461503734-3

Mercedes W204 C220 CDI 170HP OM646.811 Engine ECU Kit A6461503734 Automatic

Product currently unavailable

Part no. A0025429319

Mercedes C117 W166 W176 W205 X253 Relay Black Control Unit 4 Pin 12V A0025429319

Product currently unavailable

Part no. A1635401630

Mercedes-Benz M ML W163 Battery Positive Plus Terminal Lead Cable A1635401630

Product currently unavailable

Part no. A0101540802

Mercedes W903 Diesel Engine Alternator Generator 45-90A 14V A0101540802

Product currently unavailable

Part no. A6519007500-5

Mercedes W204 C220CDI BlueEFFICIENCY OM651.911 Engine ECU Kit A6519007500 Key

Product currently unavailable

Part no. A0025424419-1

Mercedes Vito W639 Coolant Radiator Fan Relay Control Module A0025424419

Product currently unavailable

Part no. A2711538579-1

Mercedes R171 SLK 200 M271.944 163HP Engine Module ECU Kit A2711538579 Key Lock

Product currently unavailable

Part no. A1635408905

Mercedes-Benz M-Class ML W163 Rear Axle Brake Wiring Loom Harness A1635408905

Product currently unavailable

Part no. A4475450069

Mercedes Vito W447 Control Unit Fuse Box Compartment Mount A4475450069

Product currently unavailable

Part no. A2115459301-1

Mercedes W211 W219 Fuse Box Rear SAM Module Electrical Fuse Unit A2115459301

Product currently unavailable

Part no. A0005461366

Mercedes W203 W209 Relay Unit Module 2 Pins White Hella A0005461366

Product currently unavailable

Part no. A1685402508

Mercedes-Benz A W168 Door Cable Harness Wiring Loom Rear Left Right A1685402508

Product currently unavailable

Part no. A0175450632

Mercedes C140 Gearbox Module Transmission Basic Control Unit A0175450632

Product currently unavailable

Part no. A6421500856

Mercedes W164 Diesel OM642 Engine Wiring Loom Harness Cable A6421500856

Product currently unavailable

Part no. A2218705089

Mercedes W221 Audio Amplifier Sound Harman Becker Control Unit A2218705089

Product currently unavailable

Part no. A2129006709-1

Mercedes C207 W212 Head Unit High Line Radio Sat Nav DVD Bluetooth A2129006709

Product currently unavailable

...

Showing 3763-3861 of 3991 products