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

Land Rover Discovery Sport L550 Starter Motor 2.0 Diesel GJ32-11001-AD

Product currently unavailable

Part no. L1TT19K351AA

Ford Puma ST CF7 Aerial Antenna Amplifier Control Module Unit L1TT-19K351-AA

Product currently unavailable

Part no. R8D2-14A076-AA

Land Rover Discovery Sport L550 Fuse Relay Box Lid Left N/S PHEV R8D2-14A076-AA

Product currently unavailable

Part no. A1405400282

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

Product currently unavailable

Part no. 0CQ907554C

Audi A3 S3 8V Rear Differential Module Quattro Control Unit 0CQ907554C

Product currently unavailable

Part no. A2118703385

Mercedes W211 Door Module Rear Left N/S Control Unit ECU A2118703385

Product currently unavailable

Part no. A1648206185

Keyless Go Module Mercedes W164 ECU Door Lock Control Unit A1648206185

Product currently unavailable

Part no. 4M0941824AP

Audi Q7 4M Fuse Box Power Distribution Unit Control Module 4M0941824AP

Product currently unavailable

Part no. 7519308-3

BMW X5 E53 3.0i M54 231HP ECU Kit DME 7519308 Manual + EWS3 + Key

Product currently unavailable

Part no. DG9T-19H517-AH

Ford Ranger Mk3 T6 Tow Bar Trailer Control Module DG9T-19H517-AH

Product currently unavailable

Part no. 13295310

Positive Cable Vauxhall Insignia Battery Starter Alternator Plus 13295310

Product currently unavailable

Part no. 7624048-1

BMW Z4 E89 23i N52N 204HP sDrive Engine ECU Kit CAS3 + Key 7624048 Manual

Product currently unavailable

Part no. 4M5Q10239CC

Ford Galaxy Mondeo MK4 2.0 TDCi Alternator Bracket Mount Support 4M5Q-10239-CC

Product currently unavailable

Part no. A2074407613

Mercedes-Benz E-Class W207 Cabrio A207 Centre Console Divider Wiring Harness

Product currently unavailable

Part no. LR014002-2

Land Rover Discovery 4 L319 Rear Taillight Lamp Wiring Cable Right O/S LR014002

Product currently unavailable

Part no. 8P0919475

Audi A3 8P PDC Parking Distance Control Module ECU Unit 8P0919475

Product currently unavailable

Part no. 4K0971358

Audi A6 C8 Hybrid High Voltage Battery Earth Line Negative Cable 4K0971358

Product currently unavailable

Part no. 9314837

Wiring BMW X5 F15 M Sport Rear Park Assist PDC Wiring Harness Loom 9314837

Product currently unavailable

Part no. A2049006709

Mercedes W204 Fuse Box Relay Control Unit Electric Module SAM A2049006709

Product currently unavailable

Part no. FV6T14324BFA

Ford Transit Connect Earth Ground Cable Battery Lead Wiring Loom FV6T14324BFA

Product currently unavailable

Part no. A6461503272

Mercedes W211 E220 CDI 646.821 170HP Engine Unit ECU Kit A6461503272 Key Lock

Product currently unavailable

Part no. 8K0907064FF

Audi A4 S4 B8 Body Control Comfort Unit Module BCM2 Unit ECU 8K0907064FF

Product currently unavailable

Part no. 7823934-3

Mini Cooper D R55 R56 Diesel W16 109HP ECU Kit DDE 7823934 CAS3 Key Automatic

Product currently unavailable

Part no. LK62-9D370-BC

Range Rover Velar L560 Fuel Pump Control Module ECU 2.0 Diesel LK62-9D370-BC

Product currently unavailable

Part no. 2K5959655B

Volkswagen Caddy Mk4 Air Control Unit Module ECU 2K5959655B

Product currently unavailable

Part no. 4F0820521

Audi A6 4F S6 R8 RS6 Heater Blower Motor Resistor BOSCH 4F0820521

Product currently unavailable

Part no. A4159064900-1

Mercedes Citan W415 Alternator Generator OM607 Diesel Engine 150A 14V 231000026R

Product currently unavailable

Part no. Q0011868V010000000

Smart Fortwo C450 Signal Acquisition Module Fuse Box Interior Q0011868V010000000

Product currently unavailable

Part no. 6903094

BMW E46 Coupe Convertible Front Door Cable Harness Driver's Side Wiring 6903094

Product currently unavailable

Part no. 9650109480

Airbag Module Peugeot 307 Control Unit ECU Car Safety Sensor 9650109480

Product currently unavailable

Part no. A2205404808

Mercedes W220 Window Lifter Door Cable Harness Passenger Side N/S A2205404808

Product currently unavailable

Part no. 9663755480

Peugeot 207 1.6 HDI 90HP DV6-ATED4 Engine Control Unit ECU 9663755480 Manual

Product currently unavailable

Part no. 96665877ZD

Peugeot 3008 Head-Up Display Hud Project Dash Screen Control Unit 96665877ZD

Product currently unavailable

Part no. 2376182

Ford Fiesta Mk8 Rear Bumper Parking Sensor Wiring Loom Harness H1BT-15K868-ABE

Product currently unavailable

Part no. 7588620-7

BMW E60 E90 325i 525i N53 218HP Engine Control Unit ECU DME Kit 7588620 Manual

Product currently unavailable

Part no. A2035460180

Mercedes-Benz C-Class S203 W203 Cable Rail Guide Sensors ABS A2035460180

Product currently unavailable

Part no. 5C6945095H-1

Volkswagen Jetta A6 Rear Left N/S Tail Light Plug Cable 5C6945095H 4D0972704

Product currently unavailable

Part no. 7W93-11A134-AA

Jaguar XF 250 Power Adapter Battery Positive Terminal 7W93-11A134-AA

Product currently unavailable

Part no. 5A20559

BMW F40 F44 Transmission EGS Control Module Unit ECU 5A20559

Product currently unavailable

Part no. A2711500391-10

Mercedes W204 C180 M271.820 BE 156HP Engine ECU Kit A2711500391 Key + Lock

Product currently unavailable

Part no. 8W0941823E

Audi A4 B9 A5 F5 Power Distribution Fuse Box Battery Unit 8W0941823E

Product currently unavailable

Part no. 5WA907727AC

Skoda Octavia IV Climate Air Conditioning Control Module Unit 5WA907727AC

Product currently unavailable

Part no. 8586574

BMW 1 F20 F21 LCI 116d B37 Engine Gearbox Module Wiring Cable Loom 8586574

Product currently unavailable

Part no. NAD000030E

Range Rover L322 Starter Motor Actuator Petrol Engine 4.4 V8 NAD000030E

Product currently unavailable

Part no. 4F9035225H

Audi A6 C6 Antenna Amplifier Control Unit Module ECU 4F9035225H

Product currently unavailable

Part no. 2S7T-11000-DA

Starter Ford Mondeo MK3 2.0 TDDi Mk4 2.0 Tdci Diesel Engine Starter Motor

Product currently unavailable

Part no. 6C1T-9K499-AFB

Ford Transit Mk7 Engine Bay Fuse Box Loom Harness Cables 6C1T-9K499-AFB

Product currently unavailable

Part no. 3AA971230H

Volkswagen Passat B7 Battery Starter Alternator Wiring Loom 2.0 TDI 3AA971230H

Product currently unavailable

Part no. LT1T-15604-DCB

Ford Transit Connect Mk2 Body Control Fuse Box Module BCM LT1T-15604-DCB

Product currently unavailable

Part no. 8V51-14B144-BA

Ford Fiesta Mk7 Fuse Relay Box Module Control Unit 8V51-14B144-BA

Product currently unavailable

Part no. A1649100075-1

Mercedes ML W164 Lumbar Module Front Seat Lumbar Control Unit A1649100075

Product currently unavailable

Part no. 8T0035223P

Audi A4 S4 8T A5 S5 8T Stereo Sound System Amplifier Module Unit ECU 8T0035223P

Product currently unavailable

Part no. PEO118811

Mazda 6 GJ Relay 4-Pin Electrical Unit Multi-Purpose Relay Black ACVN51212

Product currently unavailable

Part no. A4519060480

Smart ForTwo C451 Radio Stereo Audio Head Unit CD Bluetooth Bosch A4519060480

Product currently unavailable

Part no. 7948147

BMW F40 F44 Rear Seat Bench Occupancy Mat Control Unit Sensor 7948147

Product currently unavailable

Part no. 3Q0907530BF

VW Polo Mk6 Seat Ibiza Mk5 Central Gateway Control Unit Relay ECU 3Q0907530BF

Product currently unavailable

Part no. 1K0971349CR

Skoda Octavia 1Z Audi A3 8P Alternator Wiring Harness Loom Cable 1K0971349CR

Product currently unavailable

Part no. 7789754

BMW E60 E61 Starter Motor Positive Battery Cable Wiring 7789754

Product currently unavailable

Part no. 9640825280

Starter Motor Citroen Berlingo Peugeot Partner Engine Diesel 1.6 HDI 9640825280

Product currently unavailable

Part no. KU5T-14G371-GJA

Ford Fiesta St-3 Mk8 Navigation DAB ECU Control Module Unit KU5T-14G371-GJA

Product currently unavailable

Part no. 0AD927755P

Porsche Cayenne 9PA 955 Transfer Box Control Unit Module ECU 0AD927755P

Product currently unavailable

Part no. 7L5035741F

Porsche Cayenne 9PA Telephone Phone Control Unit Module 7L5035741F

Product currently unavailable

Part no. 191906383C-2

Audi VW Volkswagen Seat Skoda Relay Unit Module 12V 20A 4 Pins 191906383C

Product currently unavailable

Part no. 8K0971687Q

Audi A4 B8 Door Wiring Harness Cable Loom Rear Left N/S 8K0971687Q

Product currently unavailable

Part no. 8642676

Engine Wiring BMW F30 LCI 330e Ground Electrical Cable Wiring 8642676

Product currently unavailable

Part no. 7424109-2

BMW F32 F33 F80 F82 F83 Headlamp Headlight Xenon Wiring Cable Left N/S 7424109

Product currently unavailable

Part no. 410381

BMW 3 Series E92 Bluetooth Car Phone Display Screen Bracket Housing 0410381

Product currently unavailable

Part no. 03L906018GG

VW Scirocco Mk3 2.0 TDI 140HP CFHC Engine Control ECU Kit 03L906018GG Automatic

Product currently unavailable

Part no. 02M911021S

Audi TT FV Starter Motor Engine Diesel 02M911021S

Product currently unavailable

Part no. EH22-14F681-AF

Land Rover Discovery 4 L319 Parking Aid Distance Control Module EH22-14F681-AF

Product currently unavailable

Part no. 9242072

BMW X6 E71 Door Wiring Harness Loom Cables Driver's Side 9242072

Product currently unavailable

Part no. 8382454

BMW E39 523i Petrol M52 Immobiliser EWS 3 Control Module Siemens 8382454

Product currently unavailable

Part no. Platinium Prestige 60Ah

Platinium Prestige Heavy Duty Perfrormace Accumulator Battery 60Ah 540A

Product currently unavailable

Part no. 9380940

BMW F45 Front Door Wiring Passenger Door Cable Wiring Loom Harness 9380940

Product currently unavailable

Part no. 5A43722

BMW X1 U11 Wiring Loom Harness Cable 5A43722

Product currently unavailable

Part no. 6F0971162J

Seat Ibiza Mk5 Fr Rear Door Wiring Loom Harness Wire Right O/S 6F0971162J

Product currently unavailable

Part no. M8D2-14A073-AA

Land Range Rover Evoque L551 L550 Fuse Box Relay Box Module Unit M8D2-14A073-AA

Product currently unavailable

Part no. 7311030-2

BMW F45 Rear Light Lamp Trim In The Side Panel Wiring Cable Right O/S 7311030

Product currently unavailable

Part no. BK3T-14335-AC

Ford Transit Mk8 Anti Theft Alarm Wiring Harness Loom Cable BK3T-14335-AC

Product currently unavailable

Part no. BK2T-18C847-AA

Ford Tourneo Custom Aerial Antenna Amplifier Control Unit BK2T-18C847-AA

Product currently unavailable

Part no. 1377238080

Citroën Relay Fiat Ducato Roof Aerial Antenna Cable Wire 1377238080

Product currently unavailable

Part no. 7LA971158A

VW Volkswagen Transporter T6 Battery Wiring Harness Cable 7LA971158A

Product currently unavailable

Part no. 51794154-2

Fiat Panda Mk2 Headlight Headlamp Wiring Harness Cable Plug Right O/S 51794154

Product currently unavailable

Part no. 6935219

BMW E46 M3 Coupe Door Wiring Loom Harness Cable Driver's Side 6935219

Product currently unavailable

Part no. 6G9T-14A067-CA

Ford Mondeo Mk4 Fuse Distribution Box Electrical Unit Diesel 6G9T-14A067-CA

Product currently unavailable

Part no. F1FT-18B955-GD

Ford Focus Mk3 Radio Multimedia Display Screen Unit Module F1FT-18B955-GD

Product currently unavailable

Part no. 4K0915459

Audi A6 C8 Battery Postive Terminal Distribution Power Board 4K0915459

Product currently unavailable

Part no. 8626472

BMW F20 F21 M135i N55 231HP Petrol Engine Control Unit ECU DME 8626472 Manual

Product currently unavailable

Part no. 90494959

GM Vauxhall Opel Relay 4-Pin Multi Use Glow Plug Unit Magenta 90494959

Product currently unavailable

Part no. A2535400701

Mercedes A238 M276 Engine Alternator Wiring Loom Harness A2535400701

Product currently unavailable

Part no. 6906071

BMW 3 Series E46 Touring Amplifier Side Window Antenna Aerial 6906071

Product currently unavailable

Part no. 5Q0959655CC

Audi Q3 F3 Air Module ECU Control Unit Module 5Q0959655CC

Product currently unavailable

Part no. LR060166

Land Rover Discovery 4 Air Suspension Compressor Wiring Cable CH22-12B654-AA

Product currently unavailable

Part no. 6955347

CD Player BMW E60 E61 M-ASK M Audio System Controller Navigation Radio 6955347

Product currently unavailable

Part no. 9166707-1

BMW E87 Footwell Light Module Control Unit NSW PL2 FRM II Lear 9166707

Product currently unavailable

Part no. 9084681

BMW F45 F46 X3 F25 X5 F15 Rear View Camera Reversing Camera Unit 9084681

Product currently unavailable

Part no. A2055404734

Mercedes W205 Centre Console Wiring Harness Cable Loom A2055404734

Product currently unavailable

Part no. 8744992

BMW F40 F44 F45 F46 Gearbox Mechatronic Wiring Harness Cable GA8G45AW 8744992

Product currently unavailable

Part no. 8510137-2

BMW F10 F11 520d N47N 184HP Engine ECU Kit DDE 8510137 CAS 4 + Key Automatic

Product currently unavailable

...

Showing 23365-23463 of 28611 products