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 W221 Head Unit Multimedia TV Player CD Changer Inverter A1679001014

€569.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A0295452925

Mercedes W205 Air Unit Module Wire Harness Loom Connector A0295452925

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 127073X

Mercedes W176 Electrical Wiring Loom Harness Cable 127073X

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A9065451640

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

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2118201626

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

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A1331510745

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

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2035405707

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

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2045451047

Control Unit Bracket Mercedes W204 W212 Audio Module Holder Mount A2045451047

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A0005410005

Mercedes W211 Battery Box Cover Lit Top Housing A0005410005

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4L0907282B

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

€70.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A6519003701-3

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

€189.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2518703390

Mercedes W251 Rear Passengers Entertainment Control Unit A2518703390

€70.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A0001501780

Ignition Coil Mercedes W202 W203 M111 Cable Connector A0001501780

€23.95

Free delivery: Nov 12 – 13

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: Nov 12 – 13

If paid before 14:00

Part no. A2465410100

Mercedes W176 W246 Battery Cover Accumulator Trim Panel Lid A2465410100

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A0065454601

Energy Distributor Mercedes W204 OM656 Power Control Unit Module A0065454601

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2034450000

Mercedes Vito W639 Gateway Control Unit Module A2034450000

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2519000800

Mercedes W251 PDC Parking Assistant Control Unit Module ECU A2519000800

€56.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A1669005412

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

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A0025421219

Mercedes W168 W203 W211 Relay 6-Pin Black Tyco A0025421219

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A1179008700

Mercedes GLA X156 Air Module Safety Belt Tensioner Unit Control A1179008700

€94.95

Free delivery: Nov 12 – 13

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: Nov 12 – 13

If paid before 14:00

Part no. A2079057501

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

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2055404596

Mercedes W205 Electrical Ground Line Wire Earth Cable A2055404596

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A9075404687-1

Mercedes W907 Battery Cable Alternator Wiring Loom Harness Cabling A9075404687

€113.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2045409907

Mercedes W204 Battery Wiring Cable Harness Loom A2045409907

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2535401001

Battery Cable Mercedes C238 C253 Starter Alternator Wiring Harness A2535401001

€42.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A0025463141

Mercedes A209 C209 Line Connector Terminal Point Positive Lead Fuse A0025463141

€23.95

Free delivery: Nov 12 – 13

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: Nov 12 – 13

If paid before 14:00

Part no. A2074405734

Mercedes W207 Wiring Loom Harness Cable A2074405734

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2579006600

Mercedes C118 W167 W177 W205 W213 C238 Communication Module Unit A2579006600

€222.95

Free delivery: Nov 12 – 13

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: Nov 12 – 13

If paid before 14:00

Part no. A6519007401

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

€89.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2115454840

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

€23.95

Free delivery: Nov 12 – 13

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: Nov 12 – 13

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: Nov 12 – 13

If paid before 14:00

Part no. A2661530391-2

Mercedes W245 M266.920 Petrol 95HP Engine Control ECU Kit A0014460340 Automatic

€165.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A4159066300

Mercedes W415 Starter Motor Diesel 607951 A4159066300

€47.95

Free delivery: Nov 10 – 13

If paid before 14:00

Part no. A2198200326

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

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A1668200075

Mercedes W205 Aerial Antenna Control Unit Keyless Go Entry A1668200075

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 284B13867R

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

€66.95

Free delivery: Nov 12 – 13

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: Nov 12 – 13

If paid before 14:00

Part no. A9064401241

Mercedes Sprinter W906 Battery Alternator Starter Wiring Harness A9064401241

€56.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A1718200004

Mercedes R171 Wiring Harness Loom Cable Ventilation Driver Side A1718200004

€47.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2535405429

Mercedes C253 OM656 Diesel Engine Motor Wiring Loom Cable Harness A2535405429

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2469006710

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

€80.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2115460580

Wiring Holder Mercedes W211 Cable Loom Harness Cover Channel A2115460580

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A1644400837

Mercedes W164 Parking Sensor Wiring Loom Cable Harness Front PDC A1644400837

€80.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2125400382

Mercedes W212 Cover Fuse Box Trim Panel Lid A2125400382

€23.95

Free delivery: Nov 12 – 13

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: Nov 12 – 13

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: Nov 12 – 13

If paid before 14:00

Part no. A2124405806

Mercedes W204 W212 Travel Monitor Sensor Wiring Loom Harness Cable A2124405806

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2055455100

Mercedes W205 W213 C238 Power Distribution Unit Busbar Connector A2055455100

€37.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A0525458528

Mercedes W176 W246 Wiring Loom Harness Plug Connector Black 2-Pin A0525458528

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2129004711

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

€232.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A1645450201

Fuse Box Mercedes ML W164 W251 OM642 Diesel Relay Module Unit A1645450201

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A1175401205

Mercedes C117 Drivers Door Wiring Harness A1175401205

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A0038206926

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

€47.95

Free delivery: Nov 12 – 13

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: Nov 12 – 13

If paid before 14:00

Part no. A2115452647

Bracket Mount Mercedes W211 W219 Control Unit Module SAM Holder A2115452647

€23.95

Free delivery: Nov 12 – 13

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: Nov 12 – 13

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: Nov 12 – 13

If paid before 14:00

Part no. A2319009106

Door Module Mercedes R231 Front Door Right O/S Control Module A2319009106

€47.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 06E903018J

Audi A5 S5 8T Engine Alternator Generator Unit 3.0 TFSI QUATTRO 06E903018J

€56.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2475450001

Mercedes W177 48V Additional Battery Holder Mounting Bracket A2475450001

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2059009321

Mercedes W205 SAM Module Front Body Comfort Control Unit ECU A2059009321

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A0009058100

Mercedes ML W166 GL X166 SL R231 C292 Crash Impact Sensor A0009058100

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2055406921

Battery Wiring Mercedes X253 Diesel OM651 Alternator Harness Cable A2055406921

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2075405105

Mercedes W204 C207 W212 Panoramic Sunroof Wiring Cable Harness A2075405105

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A6421507391-1

Mercedes W221 OM642.930 235HP Engine Control ECU Kit A6421507391 Automatic

€127.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2075406932

Mercedes A207 Boot Tailgate Wiring Loom Harness Cable A2075406932

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A1698202561

Mercedes W245 Headlight Headlamp Lamp Light Wiring Front Left N/S A1698202561

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A9075409482

Fuse Box Mercedes Sprinter W907 Prefuse Box Module Relay Holder A9075409482

€47.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2124407038

Negative Cable Mercedes W212 Battery Earth Wiring Loom A2124407038

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2535402128

Mercedes X253 Starter Motor Wiring Harness Cable A2535402128

€66.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2038205185

Mercedes W203 W209 C215 Phone Control Module A2038205185

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A0009050238

Windscreen Camera Mercedes W204 W212 Front Windshield Camera Unit A0009050238

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A1665402102

Battery Cable Mercedes W166 C292 Starter Alternator Wiring Harness A1665402102

€47.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A1765401505

Mercedes C117 W176 Interior Centre Console Cable Wiring Loom A1765401505

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2045403750

Mercedes W204 SAM Module Control Unit Electrical Fuse Box Unit A2045403750

€89.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2198201604

Mercedes C219 Seat Harness Wire Loom Electric Line Front Left N/S A2198201604

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2055406304

Mercedes W205 Hybrid Battery Cable Starter Wiring Loom Harness A2055406304

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2661501233

Engine Wiring Mercedes W169 W245 M266 Petrol Cable Loom Harness A2661501233

€56.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2058200704

Sunroof Wiring Mercedes W205 X253 Panoramic Roof Motor Cable Harness A2058200704

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2711502879-1

Mercedes W204 C200 M271.950 184HP Engine ECU Kit A2711502879 Ignition + Key Lock

€569.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2139001418

Mercedes W213 Rear Door Control Module Unit Left N/S A2139001418

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2229001814

Door Module Mercedes W205 X253 Rear Left N/S Control Unit A1698209126

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2079011800

Mercedes W204 W207 Control Unit ECU Sensor Module Air SRS Bag A2079011800

€56.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2044409734-1

Mercedes C204 Front Bumper PDC Wiring Parking Sensor Loom Harness A2044409734

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2319059900

Mercedes C253 Rear Bumper Switch Tailgate Opener Sensor Module A2319059900

€56.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2128206513

Mercedes W212 Seat Adjustment Wiring Harness Wire Front left N/S 2128206513

€56.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A6421508100-3

Mercedes V251 642.950 4-Matic 224HP Engine Control ECU A6421508100 Automatic

€279.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2219000801

Mercedes W221 Front Door Control Module Unit Left N/S A2219000801

€132.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2761508800

Starter Cover Mercedes W205 W212 W213 M276 Heat Plate Motor Shield A2761508800

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2709002100-12

Mercedes W176 M270.910 122HP Engine Control ECU Kit A2709002100 Automatic

€332.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2098209810

Mercedes CLK A209 Cabrio Alarm Anti Theft System Control Module Unit A2098209810

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2465403803

Mercedes-Benz A-Class W176 Cover Equipment Electrical Fuse Box A2465403803

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2701590042

Ignition Coil Mercedes W176 M270 Petrol Ignition Cable Connector A2701590042

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2059008543

Mercedes W205 X235 BCM Body Control Unit Module ECU A2059008543

€42.95

Free delivery: Nov 12 – 13

If paid before 14:00

...

Showing 1684-1782 of 4498 products