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

Audi A1 8X Fuse Box Relay Control Unit Module Bracket Holder 8X0971845C

PLN 94.95

Free delivery: Jul 15

If paid before 14:00

Part no. 80A906093

Audi Q5 FY Fuel Pump Control Unit Module ECU Diesel Kuhnke 80A906093

PLN 56.95

Delivery: Jul 15

If paid before 14:00

Part no. 4K0919390B

Audi A6 C8 Door Panel LED Module Light Unit Front Right O/S 4K0919390B

PLN 42.95

Delivery: Jul 15

If paid before 14:00

Part no. 06F971082F-1

Audi TT 8J 2.0 TFSI Petrol Fuel Injectors Wiring Harness 06F971082F

PLN 123.95

Free delivery: Jul 15

If paid before 14:00

Part no. 8T0971035AR

Audi A5 S5 RS5 8T Door Card Wiring Loom Harness Wire Driver's Side 8T0971035AR

PLN 56.95

Delivery: Jul 15

If paid before 14:00

Part no. 1420000131

Audi A5 S5 F5 Headlight Module LED Headlamp Control Unit 000330028P

PLN 379.95

Free delivery: Jul 15

If paid before 14:00

Part no. 4H0971104S

Audi A8 D4 Rear Bumper PDC Parking Sensor Wiring Harness Loom Cable 4H0971104S

PLN 94.95

Free delivery: Jul 15

If paid before 14:00

Part no. 8K5945095AC-1

Audi A4 B8 Rear Tail Light LED Wiring Harness Cable Plug Left N/S 8K5945095AC

PLN 46.95

Delivery: Jul 15

If paid before 14:00

Part no. 8J0035456A

Antenna Amplifier Audi Q5 8R A6 C6 A5 8T Mobile Phone Module Unit 8J0035456A

PLN 75.95

Free delivery: Jul 15

If paid before 14:00

Part no. 4H0937118

Audi A8 S8 4H D4 Fuse Relay Box Lower Housing Cover Trim 4H0937118

PLN 46.95

Delivery: Jul 15

If paid before 14:00

Part no. 8R0971029B

Audi Q5 8R Front Door Wiring Loom Harness Cable Driver's Side 8R0971029B

PLN 80.95

Free delivery: Jul 15

If paid before 14:00

Part no. 8T0959793K

Audi A4 B8 A5 8T Door Control Unit Module Front Driver's Side 8T0959793K

PLN 42.95

Delivery: Jul 15

If paid before 14:00

Part no. 8J0971237A

Audi TT 8J Starter Motor Negative Battery Wiring Harness Cable 8J0971237A

PLN 61.95

Free delivery: Jul 15

If paid before 14:00

Part no. 8T0971029S

Audi A5 8T Door Wiring Loom Harness Cable Front Left N/S 8T0971029S

PLN 180.95

Free delivery: Jul 15

If paid before 14:00

Part no. 8T0907468D

Audi A4 B8 A5 8T Gateway Diagnostic Interface Control Unit Module ECU 8T0907468R

PLN 94.95

Free delivery: Jul 15

If paid before 14:00

Part no. 8P0035464

Audi A3 S3 8P Audio Amplifier Mount Bracket Holder Right O/S 8P0035464

PLN 42.95

Delivery: Jul 15

If paid before 14:00

Part no. 8T0915181

Audi A4 RS4 B8 Battery Terminal Negative Cable Loom Harness Wiring 8T0915181

PLN 42.95

Delivery: Jul 15

If paid before 14:00

Part no. 8J0971035E

Audi TT 8J Driver's Side Door Wiring Loom Harness Electrical Cable 8J0971035E

PLN 189.95

Free delivery: Jul 15

If paid before 14:00

Part no. 8E0941029BC-2

Audi RS4 B7 Headlight Lamp Light Left N/S Harness Wire Loom 8E0941029BC

PLN 46.95

Delivery: Jul 15

If paid before 14:00

Part no. 4E0959655K

Audi A8 4E S8 D3 SRS Bag Control Air Module Unit Bosch 4E0959655K

PLN 61.95

Free delivery: Jul 15

If paid before 14:00

Part no. 8W0035188E

Audi A4 B9 A5 F5 MMI Navigation Radio Head Unit Multimedia 8W0035188E

PLN 854.95

Free delivery: Jul 15

If paid before 14:00

Part no. 4F1971687AL

Audi A6 C6 Rear Left N/S Door Harness Cable Loom 4F1971687AL

PLN 75.95

Free delivery: Jul 15

If paid before 14:00

Part no. 8W8971036D

Audi A5 F5 Front Door Wiring Harness Cable Passenger Side 8W8971036D

PLN 156.95

Free delivery: Jul 15

If paid before 14:00

Part no. 80A971693R

Audi Q5 FY Door Panel Wiring Harness Cable Rear Left Right N/O/S 80A971693R

PLN 94.95

Free delivery: Jul 15

If paid before 14:00

Part no. 8K0907064JF

Audi A4 B8 A5 8T Q5 8R Body Control Module BCM Unit ECU 8K0907064JF

PLN 284.95

Free delivery: Jul 15

If paid before 14:00

Part no. 02M911023S

Audi TTRS 8J VW Golf Mk6 Starter Motor Engine Bosch 2.0 TDI Diesel 02M911023S

PLN 123.95

Free delivery: Jul 15

If paid before 14:00

Part no. 4G8971687CH

Audi A7 4G Rear Door Wiring Harness Cable Left Right N/O/S 4G8971687CH

PLN 142.95

Free delivery: Jul 15

If paid before 14:00

Part no. 8T0971036B

Audi A5 8T S5 8F S5 8T Door Wire Cable Harness Loom Front Passenger 8T0971036B

PLN 61.95

Free delivery: Jul 15

If paid before 14:00

Part no. 5Q0959595M

Audi Q2 GA Front Door Module Control Unit Controller Passenger Side 5Q0959595M

PLN 94.95

Free delivery: Jul 15

If paid before 14:00

Part no. 0AM911023R

Audi A3 8V 1.4 TSI Petrol Starter Motor Engine Actuator Unit 0AM911023R

PLN 94.95

Free delivery: Jul 15

If paid before 14:00

Part no. 05E907309CB

Audi Q2 GA 35 TFSI 1.5 DXDB Engine ECU Kit Ignition + Key 05E907309CB Manual

PLN 1,424.95

Free delivery: Jul 15

If paid before 14:00

Part no. 4H0907064GN

Audi A6 C7 A7 4G Body Comfort Control Module Unit BCM 4H0907064GN

PLN 332.95

Free delivery: Jul 15

If paid before 14:00

Part no. 8W0941823E

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

PLN 379.95

Free delivery: Jul 15

If paid before 14:00

Part no. 4M0959107D

Audi A6 C8 Boot Tailgate Control Module Unit 4M0959107D

PLN 94.95

Free delivery: Jul 15

If paid before 14:00

Part no. 03G903016L-1

Audi A6 C6 FL CAGB Diesel Engine Alternator Generator Bosch 14V 180A 03G903016L

PLN 237.95

Free delivery: Jul 15

If paid before 14:00

Part no. 4H0881073B

Audi A8L 4H Front Seat Air Pump Control Module Unit 4H0881073B

PLN 94.95

Free delivery: Jul 15

If paid before 14:00

Part no. 4L0035223G

Audi Q7 4L Bose Sound System Audio Amplifier Amp Bose 4L0035223G

PLN 1,519.95

Free delivery: Jul 15

If paid before 14:00

Part no. 4H0945095H-2

Audi A8 D4 Rear Outer Tail Light Lamp LED Wiring Cable Left N/S 4H0945095H

PLN 46.95

Delivery: Jul 15

If paid before 14:00

Part no. 4G2907311C-1

Audi A7 4G8 3.0 TDI CRTE 218HP Quattro Engine ECU Kit 4G2907311C BCM2 + 2 Keys

PLN 2,849.95

Free delivery: Jul 15

If paid before 14:00

Part no. 5Q0962131-1

Audi A3 8V Q3 F3 VW Golf M7 Antenna Control Module Keyless Entry Line 5Q0962131

PLN 46.95

Delivery: Jul 15

If paid before 14:00

Part no. 4G8971035AJ

Audi A7 4G8 Front Door Harness Wiring Loom Cable Driver's Side 4G8971035AJ

PLN 189.95

Free delivery: Jul 15

If paid before 14:00

Part no. 8X0941004A-2

Audi A1 8X Headlight Headlamp Wiring Harness Cable Front Right O/S 8X0941004A

PLN 46.95

Delivery: Jul 15

If paid before 14:00

Part no. 8W0035192E

Audi A4 B9 Multimedia Stereo Sat Nav SD CD Player Radio Head Unit 8W0035192E

PLN 1,139.95

Free delivery: Jul 15

If paid before 14:00

Part no. 8P0862335F

Audi A3 8P A4 B7 Bluetooth Module Interface Control Unit Hands Free 8P0862335F

PLN 42.95

Delivery: Jul 15

If paid before 14:00

Part no. 5Q0959593B-1

VW Golf 5G Audi S3 A3 8V Door Module Control Unit Front Driver Side 5Q0959593B

PLN 94.95

Free delivery: Jul 15

If paid before 14:00

Part no. 81A971687N

Audi Q2 GA Door Wiring Loom Harness Cable Rear Right Left N/O/S 81A971687N

PLN 237.95

Free delivery: Jul 15

If paid before 14:00

Part no. 03L906019AG-1

Audi A6 C6 2.0 TDI CAHA 170HP Engine ECU Kit 03L906019AG Ignition + Key Manual

PLN 712.95

Free delivery: Jul 15

If paid before 14:00

Part no. 4N0035446

Audi A3 RS3 8V Aerial Antenna Amplifier Control Module Unit 4N0035446

PLN 474.95

Free delivery: Jul 15

If paid before 14:00

Part no. 8K0971228H

Audi A4 B8 3.0 TDI Starter Alternator Wiring Loom Cable Harness 8K0971228H

PLN 94.95

Free delivery: Jul 15

If paid before 14:00

Part no. 8J0971030J

Audi TT 8J Door Wiring Harness Cable Passenger Side 8J0971030J

PLN 61.95

Free delivery: Jul 15

If paid before 14:00

Part no. 8W0971227A

Audi A4 S4 8W A5 S5 F5 Battery Wiring Harness Cable Loom Distributor 8W0971227A

PLN 284.95

Free delivery: Jul 15

If paid before 14:00

Part no. 5Q0907530AH

Audi A3 S3 RS3 8V Gateway Control Module GW MQB Mid Unit ECU 5Q0907530AH

PLN 70.95

Free delivery: Jul 15

If paid before 14:00

Part no. 3Q0959435F

Audi A3 S3 RS3 8V Entry Keyless Kessy Control Module Unit ECU 3Q0959435F

PLN 94.95

Free delivery: Jul 15

If paid before 14:00

Part no. 4G8971687AT

Audi A7 4G Rear Door Wiring Harness Cable Left Right N/O/S 4G8971687AT

PLN 94.95

Free delivery: Jul 15

If paid before 14:00

Part no. 8W8971693R

Audi A5 F5 Door Trim Panel Wiring Harness Wire Cable Rear Left N/S 8W8971693R

PLN 189.95

Free delivery: Jul 15

If paid before 14:00

Part no. 8K0907063AJ

Audi A5 8T Body Control Comfort Unit Module BCM Unit ECU 8K0907063AJ

PLN 313.95

Free delivery: Jul 15

If paid before 14:00

Part no. 06E911021D

Audi S5 8T A6 C7 Engine Starter Motor 3.0 TFSI Petrol CGWC 06E911021D

PLN 189.95

Free delivery: Jul 15

If paid before 14:00

Part no. 4K5971030D

Audi A6 C8 Door Card Wiring Loom Harness Cable Front Passenger Side 4K5971030D

PLN 189.95

Free delivery: Jul 15

If paid before 14:00

Part no. 8D0973822

Audi Q3 F3 Flat Connector Lid Lock Connector Micro Switch Wire Bonnet 8D0973822

PLN 42.95

Delivery: Jul 15

If paid before 14:00

Part no. 4H0951253

Audi A3 8P Multi Use Control Module Relay 4 Pin Light Green Unit 4H0951253

PLN 46.95

Delivery: Jul 15

If paid before 14:00

Part no. 5WB959107B

Audi Q2 GA Rear Boot Trunk Lid Tailgate Control Unit Module ECU 5WB959107B

PLN 474.95

Free delivery: Jul 15

If paid before 14:00

Part no. 4M0971727S

Audi Q7 4M Fuel Tank Pump Wiring Loom Harness Cable Pump Plug 4M0971727S

PLN 123.95

Free delivery: Jul 15

If paid before 14:00

Part no. 5QS919298

Audi A3 S3 8Y VW Caddy SB Mk4 Parking Sensor Module Control Unit 5QS919298

PLN 569.95

Free delivery: Jul 15

If paid before 14:00

Part no. 4K0035502A

Audi A6 C8 A7 4K Centre Console Wireless Charging Station 4K0035502A

PLN 379.95

Free delivery: Jul 15

If paid before 14:00

Part no. 1K0971349CR

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

PLN 237.95

Free delivery: Jul 15

If paid before 14:00

Part no. 3C0915336A

Audi A3 8P Battery Box Tray Covering Housing Trim Holder Bracket 3C0915336A

PLN 42.95

Delivery: Jul 15

If paid before 14:00

Part no. 4M0941823E

Audi Q7 4M Positive Battery Terminal Distribution Box 4M0941823E

PLN 284.95

Free delivery: Jul 15

If paid before 14:00

Part no. 4G0971845A

Audi A6 C7 Fuse Relay Box Sam Control Module 4G0971845A

PLN 94.95

Free delivery: Jul 15

If paid before 14:00

Part no. 7H0907652A

Audi Q7 4L Yaw Rate Speed Sensor Module 7H0907652A

PLN 61.95

Free delivery: Jul 15

If paid before 14:00

Part no. 4K0035063D

Audi A6 C8 MIB2 Multimedia Navigation Radio Control Head Unit 4K0035063D

PLN 2,374.95

Free delivery: Jul 15

If paid before 14:00

Part no. 8P0971679L

Audi A3 8P Dashboard Glove Box Wiring Loom Harness 8P0971679L

PLN 46.95

Delivery: Jul 15

If paid before 14:00

Part no. 4G8959795J

Audi A7 4G8 Rear Door Module Control Module Unit Left Right N/O/S 4G8959795J

PLN 94.95

Free delivery: Jul 15

If paid before 14:00

Part no. 81A945069C-1

Audi Q2 GA Rear Side Taillight Boot Lid Lamp Wiring Loom Left N/S 81A945069C

PLN 42.95

Delivery: Jul 15

If paid before 14:00

Part no. 8K9945094-2

Audi A4 B8 Avant Tail Light Rear Right O/S Lamp Tailgate Harness Wire 8K9945094

PLN 46.95

Delivery: Jul 15

If paid before 14:00

Part no. 8T0907559E

Audi A4 B8 A5 8T 3.2 FSI 265HP CALA Quattro Engine Control Unit ECU 8T0907559E

PLN 1,139.95

Free delivery: Jul 15

If paid before 14:00

Part no. 83A947356A

Audi Q3 F3 LED Front Door LED Lighting Module Control Unit Right O/S 83A947356A

PLN 61.95

Free delivery: Jul 15

If paid before 14:00

Part no. 8U0971104C

Audi Q3 8U Rear Bumper PDC Parking Sensor Wiring Harness Loom Cable 8U0971104C

PLN 113.95

Free delivery: Jul 15

If paid before 14:00

Part no. 80A915459-1

Audi Q5 FY Battery Positive Cable Clamp Control Module Terminal 80A915459

PLN 189.95

Free delivery: Jul 15

If paid before 14:00

Part no. 8W8971035AD

Audi A5 S5 F5 Door Trim Panel Harness Wiring Wire Front Driver Side 8W8971035AD

PLN 341.95

Free delivery: Jul 15

If paid before 14:00

Part no. 8W6907217A

Audi A5 F5 Front Windscreen Windshield Lane Assist Camera 8W6907217A

PLN 142.95

Free delivery: Jul 15

If paid before 14:00

Part no. 8K0971687S

Audi A4 B8 Door Wiring Harness Loom Rear Left N/S Cabling 8K0971687S

PLN 75.95

Free delivery: Jul 15

If paid before 14:00

Part no. 8W0971365G

Audi A5 F5 Seat Belt Warning Wiring Harness Cable Front Left N/S 8W0971365G

PLN 113.95

Free delivery: Jul 15

If paid before 14:00

Part no. 8K0971035L

Audi A4 B8 Door Wiring Wire Harness Loom Cable Front Driver Side 8K0971035L

PLN 142.95

Free delivery: Jul 15

If paid before 14:00

Part no. 8W1907063AG

Audi A4 B9 Body Control Comfort Unit Module BCM Unit ECU 8W1907063AG

PLN 1,139.95

Free delivery: Jul 15

If paid before 14:00

Part no. 4G0035711

Audi A6 S6 C7 Hands Free Microphone Module 4G0035711

PLN 61.95

Free delivery: Jul 15

If paid before 14:00

Part no. 8U0971693

Audi Q3 8U Mk1 Door Wiring Harness Loom Window Regulator Rear Right 8U0971693

PLN 61.95

Free delivery: Jul 15

If paid before 14:00

Part no. 8K0951253-2

Audi VW Volkswagen Seat Relay 643 Unit Module 4 Pins Set X3 8K0951253

PLN 75.95

Free delivery: Jul 15

If paid before 14:00

Part no. 4K5971693AJ

Audi A6 C8 Door Wiring Harness Loom Rear Left Right N/O/S 4K5971693AJ

PLN 180.95

Free delivery: Jul 15

If paid before 14:00

Part no. 4H0907182G

Audi A8 D4 4H Multicontour Seat Module Control Unit Left Right N/O/S 4H0907182G

PLN 170.95

Free delivery: Jul 15

If paid before 14:00

Part no. 4M1959592K

Audi A6 C8 A7 4K Door Module Control Unit ECU Front Passenger Side 4M1959592K

PLN 208.95

Free delivery: Jul 15

If paid before 14:00

Part no. 02E911022C

Audi A3 8V 2.0 TDI DFGA Diesel Starter Motor 02E911022C

PLN 75.95

Free delivery: Jul 15

If paid before 14:00

Part no. 06N907309A-1

Audi A4 B9 8W 35 TFSI DMSB 150 HP Engine ECU Kit Body + Key 06N907309A Automatic

PLN 1,614.95

Free delivery: Jul 15

If paid before 14:00

Part no. 8N7035223A

Audi TT 8N Roadster Bose Amplifier Audio Sound AMP 8N7035223A

PLN 512.95

Free delivery: Jul 15

If paid before 14:00

Part no. 07K903143F

Audi RS3 8V A3 8P Alternator Mounting Bracket Carrier 07K903143F

PLN 474.95

Free delivery: Jul 15

If paid before 14:00

Part no. 8T8971029AM

Audi A5 8T Front Door Wiring Loom Harness Cable Driver's Side 8T8971029AM

PLN 142.95

Free delivery: Jul 15

If paid before 14:00

Part no. 4F1937545

Audi R8 42 Fuse Box Electrical Connector Relay Control Unit Module 4F1937545

PLN 94.95

Free delivery: Jul 15

If paid before 14:00

Part no. 6R0915321B

Audi A1 8X Battery Tray Base Holder Support Mount 6R0915321B

PLN 75.95

Free delivery: Jul 15

If paid before 14:00

Part no. 8T0907468F

Audi A5 8T Gateway Control Module Unit ECU 8T0907468F

PLN 46.95

Delivery: Jul 15

If paid before 14:00

Part no. 8P0035186AB-1

Audi A3 8P Multimedia Radio CD Player Head Unit 8P0035186AB

PLN 237.95

Free delivery: Jul 15

If paid before 14:00

...

Showing 298-396 of 2597 products