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 W204 Radio Player Audio 20 Navi CD Player Head Unit A2049006003

Product currently unavailable

Part no. A2721533391

Mercedes R171 272.963 SLK350 272HP Engine Module ECU A2721533391 Automatic

Product currently unavailable

Part no. A2479001210

Mercedes W907 Central Multimedia Navi GPS Control Head Unit ECU A2479001210

Product currently unavailable

Part no. A2059001419

Mercedes W205 GLC X253 Air Conditioning Climat A/C Control Module A2059001419

Product currently unavailable

Part no. A0045459201

Mercedes W204 Fuse Box SAM Relay Control Module A0045459201

Product currently unavailable

Part no. A1718205826

Mercedes SLK R171 Air Module Bag SRS Control Unit ECU A1718205826

Product currently unavailable

Part no. A2129009829

Mercedes W166 IGW MID Gateway Control Module Unit ECU A2129009829

Product currently unavailable

Part no. A2229005210

Mercedes W205 Electric Parking Brake Control Unit Module A2229005210

Product currently unavailable

Part no. A6461506679-2

Mercedes W203 C200 CDI OM646.962 122HP ECU Kit 2 Keys Lock A6461506679 Automatic

Product currently unavailable

Part no. A2129009622-1

Mercedes W212 Rear SAM Control Unit Module A2129009622

Product currently unavailable

Part no. A2068603202

Mercedes W206 Air Module Headliner Roof Curtain Left N/S A2068603202

Product currently unavailable

Part no. A2129008624

Mercedes CLS C218 Radio Head Unit Comand Navi CD Player Control Unit A2129008624

Product currently unavailable

Part no. rhd-A2135407144

Mercedes W213 Front Left N/S Door Electrical Wiring Harness A2135407144

Product currently unavailable

Part no. A2208274642-1

CD Changer Mercedes W203 W209 W220 6 Disc Player With Magazine A2208274642

Product currently unavailable

Part no. A2115403145

Mercedes-Benz E-Class W211 Central Gateway Control Unit Module ECU A2115403145

Product currently unavailable

Part no. A9064404941

Mercedes Sprinter W906 Wiring Harness Tailgate License Plate Lamp A9064404941

Product currently unavailable

Part no. A9064400138

Mercedes Sprinter W906 Diesel Radiator Fan Wiring Harness WH1153 A6394406351

Product currently unavailable

Part no. A2215409501

Parking Aid Module Mercedes C216 W221 Parktronic Blind Spot Control A2215409501

Product currently unavailable

Part no. A9075450100-1

Fuse Box Mercedes Sprinter W907 W910 Relay Box Fuse Box Module A9075450100

Product currently unavailable

Part no. A2079012500

Air Module Mercedes C204 C207 Sensor Control Unit ECU A2079012500

Product currently unavailable

Part no. A6421509177

Merceedes W211 E280 CDI OM642.920 Engine Control Unit ECU Kit A6421509177 Key

Product currently unavailable

Part no. A6121536379-1

Mercedes-Benz ML W163 270 CDI Engine Control ECU Kit A6121536379 Key Automatic

Product currently unavailable

Part no. A1669008703

Mercedes W166 Fuse Box Front Relay Control Unit Base Module A1669008703

Product currently unavailable

Part no. A2129008409-1

Mercedes W212 C207 Radio Head Control Unit Comand Navi CD Player A2129008409

Product currently unavailable

Part no. A2118705694

Mercedes W211 Radio Head Unit CD Audio Player Control Unit A2118705694

Product currently unavailable

Part no. A6469002800

Mercedes Vito W639 OM646.980 Engine Control Unit ECU Module A6469002800 Manual

Product currently unavailable

Part no. A2135407744

Mercedes W213 Door Ambient Light Cable Harness Wiring Rear Right O/S A2135407744

Product currently unavailable

Part no. A6089001500-1

Mercedes W177 A180d 116HP OM608.915 Engine ECU Kit A6089001500 Key Lock

Product currently unavailable

Part no. A4705407002

Mercedes W470 Battery Back Up Module Control Unit A4705407002

Product currently unavailable

Part no. A1669008903

Mercedes W166 Fuse Box Front SAM Control Module Relay Box A1669008903

Product currently unavailable

Part no. A6519007003-4

Mercedes X156 GLA 220 OM651.930 170HP 4Matic Engine ECU A6519007003 Automatic

Product currently unavailable

Part no. A1645400162

Mercedes X164 Central Gateway Control Unit Module ECU A1645400162

Product currently unavailable

Part no. A6421506491-2

Mercedes W164 ML320 CDI 642.940 224HP Engine Unit ECU Kit A6421506491 Key Lock

Product currently unavailable

Part no. A6519003100

Mercedes W204 C250 CDI BE OM651.911 Engine Control Unit ECU Kit A6519003100 Key

Product currently unavailable

Part no. A6461501291-1

Mercedes W639 109 CDI OM646983 Engine Module ECU Kit A6461501291 Key Lock Manual

Product currently unavailable

Part no. A0001500258

Mercedes W221 S65 OM275 Ignition Coil Voltage Converter Transformer A0001500258

Product currently unavailable

Part no. A1699004800-1

Mercedes W169 W245 SAM Control Module ECU Fuse Box A1699004800

Product currently unavailable

Part no. A2139001423

Mercedes W470 Bluetooth Module Control Unit A2139001423

Product currently unavailable

Part no. A1718207710

Mercedes R171 Roof Micro Switch Harness Front A1718207710

Product currently unavailable

Part no. A1699002100

Mercedes W245 Head Unit Radio CD Media Player Telephone Unit A1699002100

Product currently unavailable

Part no. A2711534691-1

Mercedes R171 271.944 271944 163HP Engine ECU Kit Key Lock A2711534691 Automatic

Product currently unavailable

Part no. A1665400080

Fuse Box Cover Mercedes ML W166 C292 SAM Module Top Cap Panel Black A1665400080

Product currently unavailable

Part no. A0049820008

Mercedes W166 W221 Auxiliary Additional Generator Battery A0049820008

Product currently unavailable

Part no. A2189061903-1

SD Card Mercedes W205 Garmin Map Pilot Navigation Europe 2017/2018 A2189061903

Product currently unavailable

Part no. A1725401450

Mercedes SLK R172 Fuse Box Power Distribution Control Module Unit A1725401450

Product currently unavailable

Part no. A2045451869

Mercedes W204 SAM Control Unit Module Fuse Box Relay A2045451869

Product currently unavailable

Part no. A0009054111

Mercedes V177 Rear Bumper Blind Spot Radar Sensor Left Right Module A0009054111

Product currently unavailable

Part no. A6511501879-3

Mercedes W639 OM651.940 113 CDI 136HP Engine Module ECU A6511501879 Automatic

Product currently unavailable

Part no. A6511505520

Engine Wiring Mercedes W906 OM651.955 Euro 5 Cable Loom Harness A6511505520

Product currently unavailable

Part no. A2218703095

Mercedes W221 DVD CD Changer Navigation Comand Unit Navi A2218703095

Product currently unavailable

Part no. A2710106644-1

Mercedes R171 SLK200 M271.944 163HP Engine Control ECU A2710106644 Automatic

Product currently unavailable

Part no. A6519002600-2

Mercedes W906 309CDI OM651.955 Diesel Engine ECU Kit A6519002600 Key Lock Manual

Product currently unavailable

Part no. A2098201385

Voice Module Mercedes W203 W209 W211 Control Unit Input System A2098201385

Product currently unavailable

Part no. A0048201326

Mercedes C216 W221 SRS Control Unit Module ECU Air A0048201326

Product currently unavailable

Part no. A2218200985

Mercedes W221 Air Module Control Unit ECU SRS Module Trigger Device A2218200985

Product currently unavailable

Part no. A1669008812

Mercedes W176 Becker Navigation Map Pilot Control Unit Module A1669008812

Product currently unavailable

Part no. A2118208285

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

Product currently unavailable

Part no. A2115460641

Mercedes W211 Battery Fuse Box Control Unit Module A2115460641

Product currently unavailable

Part no. A6461506272-1

Mercedes W906 313 CDI OM646.986 129HP Engine Unit ECU Kit A6461506272 Keys

Product currently unavailable

Part no. A2095451101

Fuse Box Mercedes W203 W209 Front Relay Control Unit Module SAM A2095451101

Product currently unavailable

Part no. A6461506272

Mercedes W906 313 CDI OM646.986 129HP Engine Unit Module ECU Manual A6461506272

Product currently unavailable

Part no. A1771502073

Mercedes W205 C253 Control Unit Module Bracket Mount Holder Support A1771502073

Product currently unavailable

Part no. 237104376R

Mercedes Citan W415 109 CDI OM607.951 Engine Control Unit ECU 237104376R Manual

Product currently unavailable

Part no. A0131541002

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

Product currently unavailable

Part no. A6519000503-2

Mercedes W212 E220CDI BlueTec OM651.924 177HP Engine ECU A6519000503 Automatic

Product currently unavailable

Part no. rhd-A2479001617

Mercedes W177 Instrument Cluster Navi Sat Display Screen Multimedia A2479001617

Product currently unavailable

Part no. A2118208185

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

Product currently unavailable

Part no. A2729000300-1

Mercedes R171 M272.942 SLK300 231HP Engine Module ECU Kit A2729000300 Key

Product currently unavailable

Part no. rhd-A2044403354

Mercedes C207 Battery Cable Starter Alternator Wiring Harness Loom A2044403354

Product currently unavailable

Part no. A2218709987

Mercedes W221 Air Conditioning Climate Heater Control Unit Module A2218709987

Product currently unavailable

Part no. A1645456340

Fuse Box Mercedes W212 CLS W218 Control Unit Relay Module A1645456340

Product currently unavailable

Part no. A2118204497

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

Product currently unavailable

Part no. A2055404797

Battery Cable Mercedes GLC X253 Starter Motor Alternator Wiring A2055404797

Product currently unavailable

Part no. A2118209689

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

Product currently unavailable

Part no. A2049018201

Mercedes W204 C207 W212 W218 Navigation Control Unit Module A2049018201

Product currently unavailable

Part no. A1669059302

Reversing Camera Mercedes W166 Rear View Camera Trunk Lid Tailgate A1669059302

Product currently unavailable

Part no. A2135405403

Mercedes W213 S213 Parking Sensor Wiring Loom Harness Front Bumper A2135405403

Product currently unavailable

Part no. A2125420018-MG1

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

Product currently unavailable

Part no. A6399003101

Mercedes Vito W639 Door Module Front Left N/S Control Unit ECU A6399003101

Product currently unavailable

Part no. A2215400434

Mercedes W221 Seat Wiring Front Loom Harness Cable A2215400434

Product currently unavailable

Part no. A6461507072-1

Mercedes W639 115 CDI OM646.980 150HP Engine Module ECU Kit A6461507072 Key Lock

Product currently unavailable

Part no. A2118704785

Mercedes W211 Front Seat Memory Control Unit Module Left Right N/O/S A2118704785

Product currently unavailable

Part no. A2165450632

Mercedes W221 SAM Relay Fuse Box Module Control Unit ECU A2165450632

Product currently unavailable

Part no. A1669001311

Air Module Mercedes ML W166 Interior Safety SRS Control Module A1669001311

Product currently unavailable

Part no. A6481531279-1

Mercedes W211 S320 CDI 648.961 204HP Engine Control Unit ECU Kit A6481531279 Key

Product currently unavailable

Part no. B67824245

Mercedes S65 W221 Ipod Interface Multimedia Control Module B67824245

Product currently unavailable

Part no. A9064401066-1

Mercedes Sprinter W906 W907 Positive Battery Cable Wiring A9064401066

Product currently unavailable

Part no. A2098205489-1

Mercedes W209 Radio Head Unit Media Player Navigation Screen A2098205489

Product currently unavailable

Part no. A2045450126

Mercedes E220 CLA W212 C118 Steering Wheel Wiring Loom Harness A2045450126

Product currently unavailable

Part no. A6429060800

Mercedes W166 W204 W212 W221 W231 W463 Diesel OM642 Starter Motor A6429060800

Product currently unavailable

Part no. A6071500133

Engine Wiring Mercedes W176 W246 Diesel OM607 Loom Harness Cable A6071500133

Product currently unavailable

Part no. A2045458201-1

Mercedes W204 Rear Fuse Box Relay SAM Control Unit Module A2045458201

Product currently unavailable

Part no. A2049009214

Mercedes W204 CD Player Radio Stereo Navigation Sat Nav Head Unit A2049009214

Product currently unavailable

Part no. A1779001218

Mercedes W177 Radio Stereo Sat Nav Navigation CD Head Unit A1779001218

Product currently unavailable

Part no. A2038705089-1

Mercedes W203 CD Media Player Radio Audio 20 Phone Head Unit A2038705089

Product currently unavailable

Part no. A2711535391-1

Mercedes CL203 R171 CLC 200K 184HP M271.940 Engine Control ECU A2711535391

Product currently unavailable

Part no. A1708200386

Mercedes-Benz A E M Class W163 W168 W210 CD Player Audio 10 Stereo Radio Unit

Product currently unavailable

Part no. A2055406921

Battery Wiring Mercedes X253 Diesel OM651 Alternator Harness Cable A2055406921

Product currently unavailable

Part no. A1565402900

Mercedes X156 W176 Exhaust Flap Control Wiring Loom Cable Diesel A2139068601

Product currently unavailable

...

Showing 3961-4059 of 5984 products