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 Sprinter W906 Engine Wiring Loom Harness Cable CDI Diesel A6515460161

Product currently unavailable

Part no. A6398200186

CD Radio Mercedes W639 W906 Audio Stereo Head Unit A6398200186

Product currently unavailable

Part no. A1685451332

Mercedes-Benz A-Class W168 ESP BAS Control Unit Module ECU A1685451332

Product currently unavailable

Part no. A2829061900

Mercedes W177 M282 Petrol Engine Starter Motor A2829061900

Product currently unavailable

Part no. A1718200726-1

Mercedes R171 Front Module Door Left N/S Control Unit A1718200726

Product currently unavailable

Part no. A9105409455

Mercedes Sprinter W910 Wiring Loom Cable Harness A9105409455

Product currently unavailable

Part no. A1408206026

Mercedes C140 Comfort Convenience Control Module Unit ECU A1408206026

Product currently unavailable

Part no. A0225455332

Mercedes-Benz C E W202 Estate W210 Fuse Box Control Unit Module SAM A0225455332

Product currently unavailable

Part no. A1665420318

Battery Cable Mercedes W169 W211 Negative Lead Wiring Pole Harness A1665420318

Product currently unavailable

Part no. A2749002900

Mercedes X253 GLC 300e M274.920 4-Matic Engine ECU Unit Module A2749002900

Product currently unavailable

Part no. A1682901104

Mercedes-Benz A-Class W168 AKS Automatic Clutch System Module Actuator Unit

Product currently unavailable

Part no. A6291501933

Mercedes W164 OM629 Diesel Engine Motor Wiring Loom Cable Harness A6291501933

Product currently unavailable

Part no. A1725420023-1

Parking Sensor Display Mercedes W176 W204 W246 Dashboard Panel PDC A1725420023

Product currently unavailable

Part no. A2225404419

Mercedes W222 C238 C257 Electrical Wiring Harness Loom Cable A2225404419

Product currently unavailable

Part no. A6519007401-8

Mercedes C204 C250CDI OM651.911 204HP BlueEFFICIENCY Engine ECU Unit A6519007401

Product currently unavailable

Part no. A2205400282

Mercedes CL S Class C215 W220 Fuse Box Unit Cover Front Left A2205400282

Product currently unavailable

Part no. A1645453040

Mercedes-Benz ML GL R W164 W251 Additional Backup Battery Holder A1645453040

Product currently unavailable

Part no. A0101540802

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

Product currently unavailable

Part no. A2139008123

Mercedes A238 SAM Control Module Unit ECU A2139008123

Product currently unavailable

Part no. A2118704326

Air Module Mercedes W211 CLS C219 SRS Control Unit ECU A2118704326

Product currently unavailable

Part no. A0061515601

Mercedes ML W164 W211 W221 Engine Starter Motor A0061515601 0001109262

Product currently unavailable

Part no. A2049067702-1

Mercedes W204 Fuse Box Rear SAM Module Electrical Fuse Unit A2049067702

Product currently unavailable

Part no. A6121533279

Mercedes-Benz ML W163 270 CDI Engine Control ECU Kit A6121533279 Key Automatic

Product currently unavailable

Part no. A2059006818

Mercedes W205 SAM Module Front Body Comfort Control Unit ECU A2059006818

Product currently unavailable

Part no. A6519007500-14

Mercedes W204 C200 CDI 651.913 136HP Engine Unit ECU Kit A6519007500 Automatic

Product currently unavailable

Part no. A2215408845

Mercedes W221 Gateway Control Unit Module ECU A2215408845

Product currently unavailable

Part no. A0993200258

Mercedes W213 C238 Air Suspension Valve Block Control Unit Module A0993200258

Product currently unavailable

Part no. A2059003740

Mercedes A205 Convertible Comfort Control Unit Module A2059003740

Product currently unavailable

Part no. A1699001600

Mercedes-Benz W169 W245 48V Technology SAM Control Module Fuse Box A1699001600

Product currently unavailable

Part no. A0009056121

Mercedes W118 W177 W247 Front Radar Distance Control Unit Module A0009056121

Product currently unavailable

Part no. A2129005722

Mercedes W204 SAM Module Fuse Box Relay Control Unit A2129005722

Product currently unavailable

Part no. A2319003606

Mercedes R231 Seat Control Unit Module Driver A2319003606

Product currently unavailable

Part no. A6394640018

Mercedes Vito Viano W639 Steering Wheel Slip Squib Ring A6394640018

Product currently unavailable

Part no. A2539003001

Mercedes C253 Electronic Control Unit Module A2539003001

Product currently unavailable

Part no. A2465402705

Mercedes W176 Door Harness Loom Cable Wiring Front Left Right N/O/S A2465402705

Product currently unavailable

Part no. A2118209689

Mercedes-Benz E-Class S211 Estate Antenna Amplifier Rear Right O/S A2118209689

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. A6421506100-1

Mercedes W164 ML320 CDI 4-Matic OM642.920 Engine ECU Kit A6421506100 Key Lock

Product currently unavailable

Part no. A6421502277-2

Mercedes ML W164 280CDI 4-Matic OM642 Engine Control ECU Kit A6421502277 Automat

Product currently unavailable

Part no. A2538206100

Mercedes GLC C253 Multimedia USB SD Card Reader Port Socket A2538206100

Product currently unavailable

Part no. A2479005307

Mercedes W177 Body Control Module BCM Controller Unit A2479005307

Product currently unavailable

Part no. A1685400330

Mercedes-Benz A-Class W168 Battery Terminal Positive Cable Wiring A1685400330

Product currently unavailable

Part no. A2219007102

Mercedes W221 Fuse Box SAM Relay Control Unit Signal Module Front A2219007102

Product currently unavailable

Part no. A2025400231

Mercedes CLK W202 W208 Battery Negative Earth Cable Wiring A2025400231

Product currently unavailable

Part no. A0009067900-1

Alternator Generator Mercedes W204 W212 Diesel Engine Valeo 180A A0009067900

Product currently unavailable

Part no. A9065403527-1

Positive Cable Mercedes W906 OM651 Battery Starter Alternator Plus A9065403527

Product currently unavailable

Part no. A1695407705-1

Mercedes W169 W245 Door Cable Harness Wiring Loom Front Left N/S A1695407705

Product currently unavailable

Part no. A6511502620

Mercedes W906 OM651.955 Diesel Engine Wiring Harness Loom Cable A6511502620

Product currently unavailable

Part no. A1684620890

Mercedes-Benz A-Class W168 Automatic Transmission Bowden Cable A1684620890

Product currently unavailable

Part no. A0295450632

Mercedes-Benz C E Class W202 W203 W210 ABS Control Unit Module ECU A0295450632

Product currently unavailable

Part no. A2115456540

Mercedes E-Class S211 Touring Positive Battery Terminal A2115456540 A2115450403

Product currently unavailable

Part no. 1005831549

Starter Mercedes W204 W212 Diesel OM642 Starter Motor 1005831549

Product currently unavailable

Part no. A1635400841

Mercedes W163 Battery Ground Earth Strap Cable Wiring A1635400841

Product currently unavailable

Part no. A2088200285

Mercedes-Benz W163 W168 W210 CD Player Audio Stereo Radio Head Unit A2088200285

Product currently unavailable

Part no. A0035422519

Mercedes-Benz A B Class W169 W245 Battery Relay Module Unit A0035422519

Product currently unavailable

Part no. A2129068800-1

Radio Head Unit Mercedes W212 COMAND Navi CD DVD Player Control Unit A2129068800

Product currently unavailable

Part no. A2729001300

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

Product currently unavailable

Part no. A1636801080-1

Mercedes-Benz M-Class ML W163 1 Cover Footwell Fuse Box Trim Right A1636801080

Product currently unavailable

Part no. A2115409910

Mercedes W211 Multimedia Wiring Loom Electrical Harness Cable A2115409910

Product currently unavailable

Part no. A2038201485-2

Mercedes-Benz C-Class W203 2 Door Control Module Front Right O/S A2038201485

Product currently unavailable

Part no. A1645451240

Mercedes Benz M-Class ML W164 Control Unit Module Bracket Mount A1645451240

Product currently unavailable

Part no. A0009054603

Radar Sensor Mercedes W166 W176 W246 Front Control Unit Module A0009054603

Product currently unavailable

Part no. A6079002200-5

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

Product currently unavailable

Part no. A6429009900

Adblue Module Mercedes W164 W212 W221 Control Unit ECU A6429009900

Product currently unavailable

Part no. A2215460935

Mercedes W221 W216 Fuse Box Cover Control Unit Trim Panel Lid A2215460935

Product currently unavailable

Part no. A2118204497-1

Radio CD Player Mercedes W211 CLS C219 COMAND Navigation Head Unit A2118204497

Product currently unavailable

Part no. A2701504400

Mercedes W176 M270 Petrol Engine Wiring Harness Loom Cable A2701504400

Product currently unavailable

Part no. A4479002707

Mercedes Vito W447 Transmission Gearbox Control Unit Module ECU A4479002707

Product currently unavailable

Part no. A1715450901

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

Product currently unavailable

Part no. A1715404209

Roof Wiring Mercedes SLK R171 Covertible Roof Opening Wring Harness A1715404209

Product currently unavailable

Part no. A2049000902

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

Product currently unavailable

Part no. A2118705694

Mercedes W211 Radio Head Unit CD Audio Player Control Unit A2118705694

Product currently unavailable

Part no. A6511501879-8

Mercedes Vito W639 651.940 116 CDI 163HP Engine ECU Kit A6511501879 Lock + Key

Product currently unavailable

Part no. A0025427218

Mercedes-Benz C M Class W163 W203 ESP Yaw Rotation Rate Sensor A0025427218

Product currently unavailable

Part no. 280380655R

Renault Trafic II Control Unit Sat Nav Navigation Module Unit 280380655R

Product currently unavailable

Part no. A6079002200-3

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

Product currently unavailable

Part no. A2035450701

Mercedes W203 Fuse Box Rear SAM Module Relay Control Unit A2035450701

Product currently unavailable

Part no. A2749000900

Mercedes R172 SLK500 M274 Engine Control Unit Module ECU A2749000900

Product currently unavailable

Part no. A0015453716

Mercedes C209 Engine Kompressor 5 Speed Gearbox GSG Module Control A0015453716

Product currently unavailable

Part no. A6461506479

Mercedes C209 220 CDI M646.966 150HP Engine Unit ECU A6461506479 Automatic

Product currently unavailable

Part no. A0025424419-1

Mercedes Vito W639 Coolant Radiator Fan Relay Control Module A0025424419

Product currently unavailable

Part no. A1679002718

Mercedes W205 W213 Door Module Front Left N/S Control Unit ECU A1679002718

Product currently unavailable

Part no. A6421507391

Mercedes W221 S320 CDI 642.930 235HP Engine Control ECU A6421507391 Automatic

Product currently unavailable

Part no. A2701501533

Wiring Mercedes W176 W242 W246 C117 Petrol M270 Engine Harness Loom A2701501533

Product currently unavailable

Part no. A1698200104

Mercedes W169 Front Seat Backrest Wiring Harness Cable A1698200104

Product currently unavailable

Part no. A0305454632

Mercedes-Benz M-Class ML W163 Gearbox Transmission Control Unit ECU A0305454632

Product currently unavailable

Part no. A1719000100-1

Radio Head Unit Mercedes SLK R171 CD Player Control Unit Module A1719000100

Product currently unavailable

Part no. A2059055211

Mercedes W117 W154 W205 W213 W217 Tailgate Open Switch Sensor Rear A2059055211

Product currently unavailable

Part no. A6071500233

Engine Wiring Mercedes W176 W246 Diesel OM607 Loom Harness Cable A6071500233

Product currently unavailable

Part no. A6681530979

Mercedes W168 A 160 CDI OM668 Engine Control Module A6681530979

Product currently unavailable

Part no. A2205451840

Mercedes CL S Class C215 W220 Control Module Fuse Box Unit Holder A2205451840

Product currently unavailable

Part no. A4709060300

Mercedes W470 Diesel Engine Starter Motor A4709060300

Product currently unavailable

Part no. A2049004711

Mercedes W204 Navigation CD Player Radio Sat Nav Head Unit A2049004711

Product currently unavailable

Part no. A1698700689-2

Mercedes W169 W245 CD Player Radio Stereo Head Unit A1698700689

Product currently unavailable

Part no. A0075451432

ECU Mercedes W124 E280 M103.940 Engine Control Unit Automatic Jetronic

Product currently unavailable

Part no. A2095451701-1

Mercedes A209 Fuse Box SAM Control Module Relay Box A2095451701

Product currently unavailable

Part no. A1684620253

Mercedes-Benz A W168 Immobilizer Ignition Lock Coil Transponder A1684620253

Product currently unavailable

Part no. A1111532979

Mercedes-Benz W203 CL203 C 180 M111 Engine Control Unit Module ECU A1111532979

Product currently unavailable

Part no. A6421506691-1

Mercedes W164 ML280 CDI OM642.940 Engine Control Unit ECU Kit A6421506691 Key

Product currently unavailable

...

Showing 3367-3465 of 4135 products