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

Product currently unavailable

Part no. 03L907425C

VW Passat Variant PA 1.6 TDI Diesel Blue Motion Engine Control ECU 03L907425C

Product currently unavailable

Part no. 03C906056CG

Volkswagen Golf Mk5 1.6 FSI BLF 115HP Engine Control Unit ECU 03C906056CG Manual

Product currently unavailable

Part no. 03L906022KD

VW Scirocco Mk3 2.0 TDI CBDB 140HP Engine Control Module ECU 03L906022KD Manual

Product currently unavailable

Part no. 1K0937084F

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

Product currently unavailable

Part no. 3D0941329B

Volkswagen Passat B7 Headlight Cornering Module Control Unit 3D0941329B

Product currently unavailable

Part no. 30729826A

Volvo V70 2.4 D5244T4 Diesel Engine Control Module ECU 30729826A Automatic

Product currently unavailable

Part no. 3AA907801E

Volkswagen Passat B7 Electric Handbrake Control Module Unit 3AA907801E

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. 1T0971557AJ

Volkswagen VW Touran Door Harness Loom Cable Wiring Front Left N/S 1T0971557AJ

Product currently unavailable

Part no. 2D0959800

Volkswagen LT 35 Door Module Central Locking System Module Unit 2D0959800

Product currently unavailable

Part no. 7L6937049AF

Volkswagen Touareg 7L Power Supply Control Module Unit ECU 7L6937049AF

Product currently unavailable

Part no. 1K0953549AE

VW Golf Mk5 Steering Angle Steering Wheel Column Control Module ECU 1K0953549AE

Product currently unavailable

Part no. 03L907309-1

VW Volkswagen Crafter 2.0 TDI CBAB 140HP Engine Module ECU 03L907309 Automatic

Product currently unavailable

Part no. 7N0907530A

VW Volkswagen Touran 1T Gateway Control Module Unit ECU 7N0907530A

Product currently unavailable

Part no. 022911024A

VW Volkswagen Golf 6 1.6 TDI Diesel Engine Starter Motor 022911024A

Product currently unavailable

Part no. 1K0953549CA

VW Golf 5 Steering Angle Steering Wheel Column Control Module 1K0953549CA

Product currently unavailable

Part no. 7L0937576-1

Volkswagen Touareg 7L Fuse Box Relay Trim Cover Panel Unit Housing 7L0937576

Product currently unavailable

Part no. 443951253K

Volkswagen Audi Porsche Relay 214 Grey 443951253K

Product currently unavailable

Part no. 2K5971121H

VW Caddy Maxi 2K Front Door Panel Cable Harness Passenger's Side 2K5971121H

Product currently unavailable

Part no. 3G0971693F

Volkswagen Passat B8 Door Wiring Loom Harness Rear Left N/S 3G0971693F

Product currently unavailable

Part no. 1C0971235A

Volkswagen New Beetle Earth Ground Cable Negative Battery Lead Wiring 1C0971235A

Product currently unavailable

Part no. 04L907309B

Volkswagen Golf Mk7 1.6 TDI CLHA Engine Control Unit ECU 04L907309B Manual

Product currently unavailable

Part no. 5Q0959655AA

VW Volkswagen Golf Mk7 Front Impact Crash Air Module Sensor 5Q0959655AA

Product currently unavailable

Part no. 2K0971557AG

Volkswagen VW Caddy Door Harness Loom Cable Wiring Front Left 2K0971557AG

Product currently unavailable

Part no. 5K4971693AJ

Volkswagen Golf Mk6 Door Wiring Loom Harness Rear Left Right N/O/S 5K4971693AJ

Product currently unavailable

Part no. 3G0919605D

VW Volkswagen Golf Mk7 Multimedia MMI Sat Nav Radio Display Screen 3G0919605D

Product currently unavailable

Part no. 5K6971147N

Volkswagen Golf Mk6 5K Tailgate Wiring Harness Loom Cable Left N/S 5K6971147N

Product currently unavailable

Part no. 5N0035342B

VW Volkswagen Touran Golf Polo Interface Module Multimedia Control 5N0035342B

Product currently unavailable

Part no. 7N0907530AN

Volkswagen Passat B7 Central Gateway Control Unit Module Relay ECU 7N0907530AN

Product currently unavailable

Part no. 1T0907503B-1

Volkswagen Sharan 7N Headlight Level Sensor Module Control Unit 1T0907503B

Product currently unavailable

Part no. 7L6937049M-1

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

Product currently unavailable

Part no. 3C0035279M

VW Volkswagen Scirocco Mk3 Radio Head Unit Media CD Player RNS 315 3C0035279M

Product currently unavailable

Part no. 03G971826A

VW Golf Mk5 Engine Wiring Loom Cable Harness Injector Module Diesel 03G971826A

Product currently unavailable

Part no. 1K8919475B

Volkswagen Tiguan 5N Parking Distance Control PDC Module Unit 1K8919475B

Product currently unavailable

Part no. 2N0971068

VW Volkswagen Crafter 1 Wiring Loom Harness Cable 2N0971068

Product currently unavailable

Part no. 5K0937085R

VW Volkswagen Caddy Maxi 2K BCM Body Control Module Unit 5K0937085R

Product currently unavailable

Part no. 02T911023R

VW Polo 6R Seat Ibiza Mk4 Starter Motor Bosch 1.2 Petrol CGPB 02T911023R

Product currently unavailable

Part no. VW9065400105

Volkswagen VW Crafter Battery Lead Positive Cable Plus Pole Wiring VW9065400105

Product currently unavailable

Part no. 5K0035156A

VW Volkswagen Caddy Golf MK6 Stereo Radio CD Changer Player Head Unit 5K0035156A

Product currently unavailable

Part no. 03G906021MP

VW Volkswagen Touran TDI Diesel Engine Control Unit ECU 03G906021MP

Product currently unavailable

Part no. 022911023H

Volkswagen VW Golf V 1.9 TDI Diesel Engine Starter Motor Unit 022911023H

Product currently unavailable

Part no. 022906032BE

VW Touareg 7L 3.2 V6 Petrol 220HP Module ECU Control Unit 022906032BE Automatic

Product currently unavailable

Part no. 05L907309C-1

Volkswagen Golf Mk8 2.0 TDI 150HP Engine Control ECU Kit 05L907309C Automatic

Product currently unavailable

Part no. 1K0057186AN

Radio CD Player VW Volkswagen Caddy 2K Touran Head Unit 1K0057186AN

Product currently unavailable

Part no. 070903201E

VW Touareg 7L Engine Alternator Pulley Wheel Freewheel 2.5 TDI 070903201E

Product currently unavailable

Part no. 8D0959591C

VW Volkswagen Golf Mk5 Sunroof Sliding Roof Drive Unit Motor Actuator 8D0959591C

Product currently unavailable

Part no. 3C0937125A-1

VW Volkswagen Tiguan 5N Passat B7 Engine Bay Fuse Relay Box Terminal 3C0937125A

Product currently unavailable

Part no. 7P6959107C

VW Volkswagen Touareg 7P Rear Boot Lid Tailgate Control Module Unit 7P6959107C

Product currently unavailable

Part no. 7N0959655C

Volkswagen Sharan 7N Air Module ECU Sensor Control Unit 7N0959655C

Product currently unavailable

Part no. A9069004000

Volkswagen Crafter 2E Radio CD Player Head Unit A9069004000

Product currently unavailable

Part no. 3Q0907561D-1

Volkswagen Passat B8 Distance Regulation Radar Sensor Ecu Control 3Q0907561D

Product currently unavailable

Part no. 6R0937085B

Volkswagen Polo 6R BCM Body Comfort Control Module Unit ECU 6R0937085B

Product currently unavailable

Part no. 5K0945096M-1

Volkswagen Golf Mk6 Rear Tail Light Wiring Loom Harnes Plug Right O/S 5K0945096M

Product currently unavailable

Part no. 5G6959752CJ

VW Volkswagen Tiguan 5N Remote Ignition Key Control Unit 5G6959752CJ

Product currently unavailable

Part no. 045903143E

VW Volkswagen Polo 9N 1.4 TDI Alternator Bracket Mount Carrier 045903143E

Product currently unavailable

Part no. 7P6907273H

VW Volkswagen Touareg 7P Tyre Pressure Control Unit Module ECU 7P6907273H

Product currently unavailable

Part no. 06F903023F-2

Audi TT 8J A1 S1 8X A3 8P VW Jetta A6 Alternator Generator 140A 14V 06F903023F

Product currently unavailable

Part no. 7P6919475

Volkswagen Touareg 7P PDC Parking Distance Control Module 7P6919475

Product currently unavailable

Part no. 1K6971147Q

VW Volkswagen Golf Mk5 Rear Tailgate Wiring Harness Cable Left N/S 1K6971147Q

Product currently unavailable

Part no. 3D0909135J

Volkswagen Touareg 7L Keyless Entry Module Control Unit ECU 3D0909135J

Product currently unavailable

Part no. 0AM911022C

Volkswagen Golf Mk8 Engine Starter Motor Assembly Unit 0AM911022C

Product currently unavailable

Part no. 7E0971411

Volkswagen Transporter T5 2.0 TDI Oil Level Sensor Wiring Harness 7E0971411

Product currently unavailable

Part no. 3G0971690

Volkswagen Passat B8 3G Door Wiring Loom Harness Rear Right O/S 3G0971690

Product currently unavailable

Part no. 7N0907530AK

Volkswagen Golf Mk5 Caddy Mk3 Gateway Control Unit Module 7N0907530AK

Product currently unavailable

Part no. 3D0959933F

VW Volkswagen Phaeton 3D BCM Body Comfort Control Unit Module ECU 3D0959933F

Product currently unavailable

Part no. 2K0915181

VW Volkswagen Caddy Maxi 2k Battery Wiring Negative Cable Terminal 2K0915181

Product currently unavailable

Part no. 7E0971794A

Volkswagen Transporter T5 2.0 TDi CAAA Positive Battery Cable Wire 7E0971794A

Product currently unavailable

Part no. 3D0909610B

VW Volkswagen Phaeton 3D Rear Tailgate Boot Lid Control Module Unit 3D0909610B

Product currently unavailable

Part no. 1K0959433AK

VW Golf Mk5 1K Body Control Comfort Unit Module Convenience Unit 1K0959433AK

Product currently unavailable

Part no. 7P0941828

Volkswagen Touareg 7P Porsche Cayenne 3.0 TDI Fuse Box Control Module 7P0941828

Product currently unavailable

Part no. 6Q0909605A

Volkswagen Golf IV Mk4 Air Module ECU Control Unit 6Q0909605A

Product currently unavailable

Part no. 03G903023

Volkswagen Passat B6 Alternator Generator 2.0 TDi Diesel 180A Bosch 03G903023

Product currently unavailable

Part no. 6R0959655C

VW Volkswagen Polo 6R Air Module Control Unit 6R0959655C

Product currently unavailable

Part no. 03L906023PC

Volkswagen Caddy 1.6 TDI CAYD C20 102HP Engine Unit ECU Manual 03L906023PC

Product currently unavailable

Part no. 3C0907376

Volkswagen VW Golf Mk6 1K Electric Damping Control Module 3C0907376

Product currently unavailable

Part no. 5H6035577B

VW Golf Mk8 Antenna Amplifier Rear Booster Boot Lid Tailgate Left N/S 5H6035577B

Product currently unavailable

Part no. 06A906033DP-1

Volkswagen New Beetle 1.6 BFS 102HP Engine ECU Kit 06A906033DP Ignition + 2 Keys

Product currently unavailable

Part no. 7E0915181N

VW Transporter T6 Negative Minus Earth HV Battery Cable Wire 7E0915181N

Product currently unavailable

Part no. 5N0959655R

VW Volkswagen Tiguan 5N Air Module Control Unit ECU 5N0959655R

Product currently unavailable

Part no. 5Q0937086BM

VW Golf 5G Touran 5T Passat B8 BCM Body Control Module ECU 2.0 TDI 5Q0937086BM

Product currently unavailable

Part no. 5Q4959393

VW Volkswagen Golf MK7 Front Door Control Unit Module 5Q4959393

Product currently unavailable

Part no. 03L907309AE-2

VW Volkswagen Passat B7 2.0 TDI Engine Control ECU 170HP CFGB 03L907309AE Manual

Product currently unavailable

Part no. 3D0909601E

VW Volkswagen Touareg 7L Air Module Control Unit ECU SRS 3D0909601E

Product currently unavailable

Part no. 2Q0937090

Seat Ibiza Mk5 Arona Body Control Module Unit BCM ECU 2Q0937090

Product currently unavailable

Part no. 1K0971120CH

Volkswagen Golf 1K Door Wiring Harness Loom Cable Front Drivers Side 1K0971120CH

Product currently unavailable

Part no. 06F903023J

Audi A4 B7 Alternator Generator 2.0 TDI BRE Engine 06F903023J

Product currently unavailable

Part no. 5Q0937084CQ-1

VW Volkswagen Tiguan 5n Crafter SY Body Control Module Unit ECU 5Q0937084CQ

Product currently unavailable

Part no. 03E971612AE

Volkswagen Polo 6R Mk5 Engine Wiring Loom Harness Cable 03E971612AE

Product currently unavailable

Part no. 1K0959433AR

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

Product currently unavailable

Part no. 2K5971557A

VW Volkswagen Caddy 2K Door Card Wiring Loom Front Driver's Side O/S 2K5971557A

Product currently unavailable

Part no. 3C0906651

Volkswagen VW Crafter 2E AdBlue Control Unit Module 2.5 TDI Diesel 3C0906651

Product currently unavailable

Part no. 1K0907530E

VW Golf Mk5 Gateway Module Diagnostic Interface Control Unit ECU 1K0907530E

Product currently unavailable

Part no. 5G0907159G

Volkswagen Golf Mk7 GTI Impact Sound Control Module 2.0 TFSI DLBA 5G0907159G

Product currently unavailable

Part no. 3D0907553B

Volkswagen Phaeton 3D Air Suspension Control Module Unit ECU 3D0907553B

Product currently unavailable

Part no. 3C0937049AE

Volkswagen Golf Mk5 1K Module BCM Body Control Unit Module ECU 3C0937049AE

Product currently unavailable

Part no. 05E907309

Volkswagen Golf Sportsvan 1.5 TSI DADA 150HP Engine ECU Key + Lock 05E907309 DSG

Product currently unavailable

Part no. 5N0959655AA

Volkswagen Tiguan 5N Air Module Crash Control Module Unit ECU 5N0959655A

Product currently unavailable

...

Showing 793-891 of 1301 products