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

BMW F25 Shock Absorber Sensor Adapter Wiring Loom Cable Front Axle 6797031

€28.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 5A07600

BMW F40 Heater Air Conditioning System Control Unit Module 5A075F7

€32.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A2054406633

Mercedes C205 Door Wiring Front Door Left N/S wiring Harness A2054406633

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. FW93-18K942-AB

Land Rover Discovery Sport L550 Aerial Antenna Amplifier Unit FW93-18K942-AB

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9808786

Mini Paceman R61 Front Right O/S Window Lifter Mechanism Motor Regulator 9808786

€32.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. CH22-14369-CB

Land Rover Discovery 4 L319 Front Bumper Wiring Harness Cable CH22-14369-CB

€66.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 1S0919275-DGR

Audi A5 8T Parking Sensor Control Module Daytona Grey Metallic - Z7S 1S0919275

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8574380-1

BMW F10 520d N47N 184HP Engine Control Unit ECU DDE 8574380 Automatic

€165.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A0009056001

Battery Cable Mercedes W213 S213 Negative Lead Wiring Harness A0009056001

€32.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8K0971104Q

Audi A5 8T Rear Bumper PDC Parking Sensor Wiring Harness Loom 8K0971104Q

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8482940

BMW F30 LCI G11 G30 Battery Cell Supervision Circuit Module Unit 8667593

€32.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. DH52-18C815-BD

Land Rover Discovery 4 L319 Radio Head Unit DAB CD Player CH22-044H94-BAW

€123.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. GJ32-13W030-DC-2

Land Rover Evoque L538 Front Headlight Headlamp Wiring Left N/S GJ32-13W030-DC

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6944962

BMW E60 E61 Centre Console Switch Centre DSC PDC 6944962

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A2229001609

Mercedes W222 Sound Amplifier Control Unit Module ECU A2229001609

€379.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A6549009400

Mercedes W447 W907 W910 Engine Control Unit Module ECU A6549009400

€180.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 06L971627AA

Audi S3 8V Seat Leon Cupra 5f Injector Wiring Loom Harness 2.0 TSI 06L971627AA

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9388183

BMW F45 Active Tourer Body Control Module ECU 9388183

€132.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9281714

BMW F83 Camera Kafas Front Windscreen Camera 9281714

€70.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A0465455728

Mercedes A207 W212 S212 Wiring Harness Plug Connector Black 2-Pin A0465455728

€32.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 1Z0035111A

Skoda Octavia II Head Disc CD Changer Player Unit 1Z0035111A

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7515253

Mini Cooper One R50 R52 R53 R55 R56 R57 R58 R59 R60 R61 Earth Ground Cable

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 5WA907361A

Volkswagen Golf Mk8 Audi S3 RS3 8Y Relay Electrical Fuse Box 5WA907361A

€32.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 5A7A0B8

Bmw U06 U10 F70 Engine Wiring Wire Harness Loom Servotronic Cable 5A7A0B8

€94.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A1644403801

Mercedes ML350 W164 Gateway ECU Control Module Unit A1644403801

€303.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8K0937517A

Audi A4 B8 A5 8T Battery Postive Terminal Distribution Power Board 8K0937517A

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 079971627R

Audi RS4 B8 RS5 8T Injector Wiring Loom Harness 4.2 V8 FSI Petrol 079971627R

€32.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A2113231126

Mercedes-Benz E Class W211 Front Left Anti Roll Bar Clamp Bracket A2113231126

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 1S0919275-PHB

Audi A3 8P PDC Parking Distance Control Sensor Module Unit ECU Phantom Black Z9Y

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 83A971392

Audi Q3 RSQ3 F3 Seat Belt Warning Wiring Harness Centre Left N/S 83A971392

€37.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6949080

BMW E90 E91 E92 E93 Seat Cross Member Wiring Cable Channel Duct 6949080

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7527610-13

MINI One R50 W10 90HP Engine ECU Control Unit Module DME 7527610 Automatic

€28.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8X0959655B

Audi A1 8X Air Module Control Unit Sensor 8X0959655B

€56.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9169521

BMW E61 Centre Console Switch Cluster Control Unit ECU 9169521

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9298960

REM Module BMW F20 F21 F30 F31 F32 Body Control Unit 9298960

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9230432

BMW X5 E70 Footwell Light Control Module Unit Lear FRM3R VDM 9230432

€180.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8606777-4

BMW F30 F31 320iX N20 184HP Engine Control Unit ECU DME 8606777 Manual

€455.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. AM5T-19E663-AC

Ford Focus Mk3 Sunlight Sun Light Solar Sensor Unit AM5T-19E663-AC

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8V0863051

Audi A3 8V AMP Amplifier Under Seat Cover Trim Panel Unit 8V0863051

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A2129004114

Door Module Mercedes W204 W212 Rear Left N/S Control Unit A2129004114

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. EJ32-14290-CGC

Range Rover Evoque L538 Engine Bay Fuse Box EJ32-14290-CGC LR046377

€66.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9259468

BMW X3 F25 Fuse Box Power Distribution Control Unit Box Rear 9259468

€32.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 04L907309E-3

Audi A3 8V 1.6 TDI CRKB 110HP Engine Control ECU Kit 04L907309E Manual

€165.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 4H0035225L

Audi A8 D4 4H Aerial Antenna Amplifier AMP Booster Module 4H0035225L

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 4G8959793J

Audi A6 C7 Door Module Control Unit ECU Front Left N/S 4G8959793J

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 4M0959655AL

Audi A6 C8 Q7 4M Air Module Control Unit ECU 4M0959655AL

€313.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 4K5971693AS

Audi A6 C8 Door Card Trim Wiring Harness Loom Rear Left Right N/O/S 4K5971693AS

€47.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 5H0998476

Volkswagen Golf Mk8 CD1 Headlight Ballast Module Control Unit Left N/S 5H0998476

€37.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8W0907063CC

Audi A4 B9 BCM Body Control Module Comfort Unit ECU 8W0907063CC

€28.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8736083

BMW F98 Battery Lead Pole Negative Cable IBS Sensor 8736083

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9205480

BMW 1 Series E82 E88 Positive Battery Lead Cable Wiring 9205480

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6938226-1

BMW E90 E90N E91 E91N LCI M3 Wiring loom rear door left right 6938225

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A2049007508

Mercedes W204 Display Screen Monitor Radio Sat Nav Navigation Unit A2049007508

€28.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A2135400329

Mercedes X253 Electrical Wiring Harness Cable Hybrid A2135400329

€89.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9315151

BMW X3 F25 Fuse Box Power Distribution Control Unit Box Rear 9315151

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A2059008015

Mercedes W205 W447 Radio Multimedia Head Unit Cd Player A2059008015

€474.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. MICROLISE-MTU4-A-TRACKING-MODULE-UNIT

Volkswagen Caddy Maxi 2k Microlise MTU-4A Tracking Module Unit ECU Control

€37.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9346566

BMW F45 F46 X1 F48 X2 F39 Negative Battery Cable Terminal Wiring 9346566

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7570287

BMW Mini Cooper One R55 R56 R57 Earth Ground Battery Strap Cable 7570287

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6957348

BMW 6 Series E63 E64 F06 F12 F13 Aerial Antenna Amplifier Module Right O/S

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9274357

BMW 4 F32 Wiring Loom Harness Cable 9274357

€32.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A4475450069-2

Mercedes Vito W447 Control Unit Fuse Box Compartment Mount A4475450069

€28.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A1644400650

Mercedes W164 W251 Front Wiring Loom Harness Seat Cable Loom A1644400650

€89.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A2113231226

Mercedes-Benz E Class W211 Front Right Anti Roll Bar Clamp Bracket A2113231226

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 1405523

Mini One D R50 R53 Cooper S Fuse Box 1405523

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 4L0035652B

Audi Q7 4L MMI Multimedia Radio CD Player Sat Nav Head Unit 4L0035652B

€227.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 06K907425B-3

Volkswagen Golf Mk7 2.0 TSI CHHB 220HP Engine ECU Kit 06K907425B Manual

€284.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. AG9T-14240-DED

Ford S-Max Door Harness Loom Wiring Wire Rear Right O/S AG9T-14240-DED

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9124585

BMW 1 3 Series E87 E90 Front Rear PDC Ultrasonic Parking Sensor Sedonarot Red

€26.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 3AA906337

Volkswagen Passat B7 Engine ECU Control Module Mount Cover Carrier 3AA906337

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 5TRK0200UK

BMW X5 E53 GPS Vehicle Location Tracker Control Unit Module ECU 5TRK0200UK

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9350003-1

Safety Control Unit BMW F01 LCI F07 F10 F11 F25 Air Module Bag ECU 9350003

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8W0907064GB

Audi A4 B9 A5 F5 Central Body Control Module BCM Unit ECU 8W0907064GB

€32.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8X0907159B

Audi A1 8X Fuel Pump Module Control Unit ECU 8X0907159B

€32.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A4539018900

Smart ForTwo C453 Air Module Impact SRS Control Module ECU A4539018900

€85.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 9389070-1

BMW F36 Fuse Box Control REM Electric Power Distribution 9389070

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8T0959793P

Audi A4 B8 A5 8T Door Control Unit Module Front Driver's Side 8T0959793P

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 4F0907468R

AUDI Q7 4L Quattro 3.0 TDI BUS Diagnostic Gateway Interface Module 4F0907468R

€32.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A2135405542

Mercedes W205 Electrical Wire From Transmission To Body Ground Cable A2135405542

€28.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 7CP1-18C847-CA

Ford Focus Mk3 Aerial Antenna Amplifier Control Unit Module 7CP1-18C847-CA

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 5N0035342C

VW Volkswagen Touareg 7L Media Interface Module Control Unit Box 5N0035342C

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 3Q0907530AR

VW Volkswagen Transporter T6 Gateway Control Unit Module ECU 3Q0907530AR

€28.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 431951253G

Audi S8 A8 D3 Relay Control Module Unit Purple 381 4 Pins 431951253G

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8T8035225C

Audi A5 8T Audio Radio Aerial Amplifier Control Unit 8T8035225C

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. LR014060

Land Rover Freelander 2 L359 Diesel Starter Motor LR014060 AH52-11001-AC

€42.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A2514406236

Mercedes W164 Steering Wheel Air Module Wire Wiring Cale Harness A2514406236

€32.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. GH22-14F041-AA

Land Rover Discovery 4 L319 Junction Fuse Box 3.0 Diesel GH22-14F041-AA

€142.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A2709002100-1

Mercedes W176 W246 A180 B180 BlueEFFICIENCY 270.910 122HP Engine ECU A2709002100

€332.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A2128300008

Fan Blower Mercedes W212 Comand Navi CD Control Unit Module Cooler A2128300008

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 5Q0959392F

Audi Q2 GA A3 8V Door Control Module Unit Front Passenger's Side N/S 5Q0959392F

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 240720782R

Renault Trafic III VIvaro B Wiring Connector Additional Horn Cable 240720782R

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. GJ32-13W029-DC-2

Range Rover Evoque L538 Front Headlight Wire Harness Right O/S GJ32-13W029-DC

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. DG9T-14B531-CF

Ford Mondeo MK5 Front Door Control Module ECU Right O/S DG9T-14B531-CF

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A2078200159-2

Mercedes W207 Headlight Lamp Light Front Left N/S Cable Wire Harness A2078200159

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 6C1113W029BG-2

Ford Transit MK7 Headlamp Light Lamp Front Right O/S Harness Wire 6C1113W029BG

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A0325453032

Mercedes W220 Automatic Gearbox Control Unit Module ECU A0325453032

€123.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 93BB14488AB

Ford Focus Mk2 Starter Motor Engine Actuator Cable Wiring Unit 93BB14488AB

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. A2038219751-1

Mercedes-Benz C-Class W203 Alarm Sensor Module Unit A2038219751

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8200587119

Renault Trafic III Vauxhall Vivaro B Relay 5-Pin Grey Unit 8200587119

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

...

Showing 3169-3267 of 18495 products