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

Volkswagen Touareg 7L Onboard Supply Comfort Unit Module Unit ECU 7L6937049M

Product currently unavailable

Part no. 5Q0971230DT

Volkswagen Golf Mk7 Alternator Wiring Harness Loom Cable 1.4 TSI 5Q0971230DT

Product currently unavailable

Part no. 1K0035186AS

VW Volkswagen Jetta Mk6 Radio CD Player Stereo Multimedia Head Unit 1K0035186AS

Product currently unavailable

Part no. 6Q0907440A

Volkswagen Transporter T5 Black Relay Control Unit 6 Pin 12V 361 6Q0907440A

Product currently unavailable

Part no. 3AF945095E-2

Volkswagen Passat B7 Estate Tail Light Lamp Wiring Rear Left N/S 3AF945095E

Product currently unavailable

Part no. P1XT-18T806-AC

Volkswagen VW Amarok NF Audio Sound System Amplifier Unit P1XT-18T806-AC

Product currently unavailable

Part no. 7L0937503-1

Volkswagen Touareg 7L Relay Housing Plate Module Control Unit 7L0937503

Product currently unavailable

Part no. 5K0971104C

Volkswagen Golf GTI Mk7 Rear Bumper PDC Sensors Wiring Loom Harness 5K0971104C

Product currently unavailable

Part no. 7P6971162EC

VW Touareg 7P Door Wiring Loom Harness Cable Front Driver's Side 7P6971162DJ

Product currently unavailable

Part no. 3AA937087R

Volkswagen VW Passat B7 Module BCM Body Control Unit Module ECU 3AA937087R

Product currently unavailable

Part no. 037906024BE

VW Golf 3 GTI 2.0 16V ABF 150KM Petrol Manual Engine Unit Module ECU 037906024BE

Product currently unavailable

Part no. 7H0035152H

Volkswagen Transporter T5 Radio CD Player Head Unit 7H0035152H

Product currently unavailable

Part no. 5G4971694R

Volkswagen Golf Mk7 Rear Door Wiring Loom Harness Cable Right O/S 5G4971694R

Product currently unavailable

Part no. 3C0035279G

VW Volkswagen Passat B7 CC Beetle Radio Sat Navigation Head Unit 3C0035279G

Product currently unavailable

Part no. 06J903023G-1

VW Volkswagen Polo Gti 6R Golf Mk7 Alternator Generator 14V 140A 6J903023G

Product currently unavailable

Part no. 5WA971230CM

Battery Cable VW Golf 8 Audi A3 8Y Starter Alternator Wiring Harness 5WA971230CM

Product currently unavailable

Part no. 3C0035270

VW Volkswagen Golf 6 Polo Radio Head Unit RNS 310 Media Player Unit 3C0035270

Product currently unavailable

Part no. 7P6035730D

Volkswagen Golf Mk6 Passat B7 Bluetooth Interface Control Module ECU 7P6035730D

Product currently unavailable

Part no. 7N0907530BR

Volkswagen Caddy Maxi 2k Gateway Control Module Diagnosis Interface 7N0907530BR

Product currently unavailable

Part no. 02Z911021C

Volkswagen Polo 6C Starter Motor Actuator 1.4 TDI Diesel Engine 02Z911021C

Product currently unavailable

Part no. 4H0959793F

VW Touareg 7P Front Door Control Module Unit ECU Driver's Side 4H0959793F

Product currently unavailable

Part no. 7E0919283

VW Volkswagen Transporter T5 Parking Aid Control Module Unit 7E0919283

Product currently unavailable

Part no. 02Z911024

Volkswagen Golf Mk7 Jetta A6 Scirocco Mk3 Starter Motor 02Z911024

Product currently unavailable

Part no. 1K0971349CB

Volkswagen Golf Mk6 Audi A3 8P Alternator Wiring Harness 2.0 TDI 1K0971349CB

Product currently unavailable

Part no. 5Q0906121S

Volkswagen Golf Mk7 Mk8 Fuel Pump Control Unit Module 1.6 TDI 5Q0906121S

Product currently unavailable

Part no. 3D0907040H

VW Volkswagen Phaeton 3D Climate Air Conditioning Control Module Unit 3D0907040H

Product currently unavailable

Part no. 7E0937503B

VW Volkswagen Transporter T5 Engine Bay Fuse Box Relay Plate 2.5 TDI 7E0937503B

Product currently unavailable

Part no. 2HJ962211N

Volkswagen Amarok Mk2 Engine Earth Ground Wiring Harnes Cable MB3T-18C942-BF

Product currently unavailable

Part no. 7H0805283D

VW Volkswagen Transporter T5 Battery Console Holder Support Mount 7H0805283D

Product currently unavailable

Part no. G2412-154530-B

VW Amarok Mk2 Headlight Headlamp Control Unit Module Sensor G2412-154530-B

Product currently unavailable

Part no. 7E0937545A

Volkswagen Transporter T5 Main Fuse Socket Connector Housing Bracket 7E0937545A

Product currently unavailable

Part no. 5Q0959392D

VW Volkswagen Golf 7 Front Door Control Module Passenger Side Unit 5Q0959392D

Product currently unavailable

Part no. 7E0945095T-2

Volkswagen Transporter T6 Rear Lamp Side Tail Light Wiring Left N/S 7E0945095T

Product currently unavailable

Part no. 5H0947145C

Volkswagen Golf GTI CD1 Led Ambient Lighting Dashboard Connector 5H0927103K

Product currently unavailable

Part no. 03L903023P-1

Volkswagen Crafter 2E 2.0 TDI Diesel Engine Alternator 03L903023P

Product currently unavailable

Part no. 5QS919294

Volkswagen Crafter Mk2 Tiguan Mk3 PDC Parking Sensor Control Module 5QS919294

Product currently unavailable

Part no. 6R0971349AP

VW Volkswagen Polo 6R 1.4 TSI Petrol Alternator Wiring Harness Loom 6R0971349AP

Product currently unavailable

Part no. MB3T-14C574-PFB

Volkswagen Amarok NF Ford Ranger T9 Body Cable Wire Harness MB3T-14C574-PFB

Product currently unavailable

Part no. 1K0915418A

Audi A3 S3 8P VW Volkswagen Golf Mk5 HV Battery Jacket Cover Housing 1K0915418A

Product currently unavailable

Part no. 3D0971235AD

VW Volkswagen Phaeton Mk1 Battery Negative Terminal Wire Cable 3D0971235AD

Product currently unavailable

Part no. 1K8971147K

Volkswagen Scirocco Mk3 Tailgate Boot Wiring Harness Cable Left N/S 1K8971147K

Product currently unavailable

Part no. 070903139X

Volkswagen Transporter T5 Alternator 14V 150A 2.5 TDI AXE 070903139X 070903024A

Product currently unavailable

Part no. 2N0915181G

Volkswagen Crafter Mk2 Negative Minus - Battery Terminal Wiring Cable 2N0915181G

Product currently unavailable

Part no. 7P6971121D

VW Volkswagen Touareg 7P Front Door Wiring Harness Passenger's Side 7P6971121D

Product currently unavailable

Part no. 5K0937087AD

Volkswagen Touran 1T Scirocco III BCM Body Control Module Unit ECU 5K0937087AD

Product currently unavailable

Part no. 2K5972175

Volkswagen Caddy 2K Rear Gate Tailgate Harness Wiring Adapter Cable 2K5972175

Product currently unavailable

Part no. 5CU971095

Volkswagen Jetta A6 Bumper Cable Wiring Harness Loom 5CU971095

Product currently unavailable

Part no. 7L0959933H

VW Touareg 7L Body Control Comfort Unit Module STG Convenience ECU 7L0959933H

Product currently unavailable

Part no. 1K8971148J

Volkswagen Scirocco Mk3 Tailgate Window Washer Wiring Harness Cable 1K8971148J

Product currently unavailable

Part no. 5WD919294

Volkswagen Golf GTI CD1 PDC Parking Distance Control Module 5WD919294

Product currently unavailable

Part no. 7CA971819B

VW Crafter SY AdBlue Tank Wiring Loom 2.0 TDI Diesel 103kW 140HP 7CA971819B

Product currently unavailable

Part no. 1K8907115F

VW Golf Mk6 2.0 TSI CDLF 270HP 4x4 Engine Control ECU Kit 1K8907115F Automatic

Product currently unavailable

Part no. 000937615B

Audi Q3 F3 Volkswagen Tiguan 5N Jetta Mk4 Fuse Relay Box 000937615B

Product currently unavailable

Part no. 1K0971228T

Volkswagen Scirocco Mk3 Battery Starter Motor Loom Lead 1K0971228T

Product currently unavailable

Part no. ML3T-14H031-AK

VW Amarok NF Blind Spot Radar Sensor Rear Left Right N/O/S ML3T-14H031-AK

Product currently unavailable

Part no. 045971803

Engine Wiring VW Polo 9N 1.4 TDI Injector Ignition Loom Harness Cable 045971803

Product currently unavailable

Part no. 5DK008214

Volkswagen VW Golf IV Body Control Module BCM Comfort Control Unit 5DK008214

Product currently unavailable

Part no. RHD-1K8971120BE

VW Volkswagen Scirocco Mk3 Door Wiring Harness Loom Driver's Side 1K8971120BE

Product currently unavailable

Part no. 6C0915423

Volkswagen Polo 6R Mk5 Battery Terminal Overload Protection Fuse 6C0915423

Product currently unavailable

Part no. 1K0959433AR

Volkswagen TOURAN 1T Body Control Comfort Unit Module BCM Unit ECU 1K0959433AR

Product currently unavailable

Part no. NU5T-14B531-JA

VW Amarok Mk2 Door Module Control Unit Front Rear Driver's Side NU5T-14B531-JA

Product currently unavailable

Part no. 7N0937503A

Audi Q3 8U VW Scirocco Mk3 Relay Bracket Holder Box 7N0937503A

Product currently unavailable

Part no. 3D0907539A

VW Volkswagen Phaeton 3D Dashboard Light Sun Solar Sensor Unit 3D0907539A

Product currently unavailable

Part no. 5C0035680E

VW Volkswagen Scirocco Mk3 Radio Display Screen Multimedia Nav Unit 5C0035680E

Product currently unavailable

Part no. 1K0971349AM

VW Golf Mk6 Scirocco Mk3 Starter Wiring Harness Cable 1K0971349AM

Product currently unavailable

Part no. RHD-7CC971154A

Volkswagen Crafter SY Mk2 Power Steering Rack Wiring Harness Cable 7CC971154A

Product currently unavailable

Part no. 7L5907401-2

Volkswagen Touareg 7L 3.0TDI BKS 225HP Engine Unit ECU Kit 7L5907401 Automatic

Product currently unavailable

Part no. 1C0880201M

Volkswagen New Beetle Steering Wheel Air Module Driver's Side Black 1C0880201M

Product currently unavailable

Part no. 5H0945207A-2

VW Golf GTI CD1 Tail Light Rear Lamp Socket Cable Plug Left N/S 5H0945207A

Product currently unavailable

Part no. 074903025K

Alternator Volkswagen LT35 2.5 TDI Diesel Engine Alternator 90A Bosch 074903025K

Product currently unavailable

Part no. 1K0915418F

VW Volkswagen Golf Mk6 HV Battery Jacket Cover Housing 1K0915418F

Product currently unavailable

Part no. 1K0035186P

VW Volkswagen Golf Mk5 Passat B6 Radio CD Player Head Multimedia Unit 1K0035186P

Product currently unavailable

Part no. 03E906023AL-2

Volkswagen Polo 6R 1.2 MPI CGPB 60HP Engine Control ECU Kit 03E906023AL Manual

Product currently unavailable

Part no. 7CC971120AK

Volkswagen Crafter Mk2 SY Front Door Wiring Loom Harness Left N/S 7CC971120AK

Product currently unavailable

Part no. 7L6971694H

Volkswagen Touareg 7L Rear Door Wiring Loom Harness Cable 7L6971694H

Product currently unavailable

Part no. 5Q0907530D

Volkswagen VW Golf Mk7 Gateway Control Unit Module 5Q0907530D

Product currently unavailable

Part no. 1K0907115-1

Volkswagen Golf Mk5 GTI 2.0 TFSI AXX 200HP Engine Control ECU 1K0907115 Manual

Product currently unavailable

Part no. 5H0945208A-2

VW Golf Gti CD1 LED Tail Light Rear Lamp Cable Plug Wire Right O/S 5H0945208A

Product currently unavailable

Part no. 3C5945095H-1

VW Passat B6 Rear Tail Light Lamp Wiring Harness Cable Left N/S 3C5945095H

Product currently unavailable

Part no. 5G0971175C

Volkswagen Golf Mk7 Rear Tailgate Boot Lid Wiring Adapter Loom 5G0971175C

Product currently unavailable

Part no. 1K0971365CG

VW Volkswagen Golf Mk5 1K Seat Wiring Loom Cable Front Left N/S 1K0971365CG

Product currently unavailable

Part no. 070911023C

Volkswagen Touareg Diesel Engine Starter Motor Actuator Starter 070911023C

Product currently unavailable

Part no. 06K907425B-17

Volkswagen Polo GTI 6R 1.8 TSI DAJA 192HP Engine ECU Kit 06K907425B BCM + Key

Product currently unavailable

Part no. 1T0880201T

Volkswagen Tiguan 5N Air Module Control Unit Module 1T0880201T

Product currently unavailable

Part no. 1K0953549BK

Volkswagen VW Golf Mk5 Steering Wheel Position Angle Control Unit 1K0953549BK

Product currently unavailable

Part no. 5Q0937084M

Volkswagen VW Golf Mk7 BCM Convenience Body Control Module Unit ECU 5Q0937084M

Product currently unavailable

Part no. 5K0959434A

Volkswagen Sharan 7N Keyless Kessy Control Module ECU Unit 5K0959434A

Product currently unavailable

Part no. 1T0035577AE

VW Volkswagen Touran 1T Aerial Antenna Amplifier Unit Module 1T0035577AE

Product currently unavailable

Part no. 7L6971121N

Volkswagen Touareg 7L Front Door Wiring Loom Harness Passenger's Side 7L6971121N

Product currently unavailable

Part no. 070903024B

Volkswagen Touareg Transporter 2.5 TDI Alternator Generator 14V 180A 070903024B

Product currently unavailable

Part no. 3G9971104

VW Volkswagen Passat B8 3G Rear Bumper PDC Parking Sensor Wiring Loom 3G9971104

Product currently unavailable

Part no. 04L907309B-2

Volkswagen Golf 7 1.6 TDI CLHA 105HP Engine ECU Kit 04L907309B Key + Ignition

Product currently unavailable

Part no. 7CA971695G

VW Volkswagen Crafter SY Rear Door Wiring Loom Harness Left N/S 7CA971695G

Product currently unavailable

Part no. 06F903023J

Audi A4 B7 Alternator Generator 2.0 TDI BRE Engine 06F903023J

Product currently unavailable

Part no. 1K0937084F

VW Volkswagen Golf MK6 Body Control Comfort Unit Module BCM 1K0937084F

Product currently unavailable

Part no. 1T0035577AF

VW Volkswagen Touran 1T Aerial Amplifier Control Unit Module 1T0035577AF

Product currently unavailable

Part no. 069911023MX

Volkswagen LT 2.5 Touareg 3.0 TDI Diesel Engine Starter Motor 069911023MX

Product currently unavailable

Part no. 7CA971696J

Volkswagen Crafter SY Rear Door Wiring Loom Harness Cable Right O/S 7CA971696J

Product currently unavailable

Part no. RHD-7P6971364BB

VW Volkswagen Touareg 7P Front Seat Frame Wiring Harness Right O/S 7P6971364BB

Product currently unavailable

...

Showing 1288-1386 of 1539 products