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.

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Audi A7 4G8 Door Control Module Front Passenger Side 4G8959792J

PLN 42.95

Delivery: Jul 15

If paid before 14:00

Part no. 8W6947355D

Audi A5 S5 F5 Door Card Panel LED Module Light Unit Front Right O/S 8W6947355D

PLN 42.95

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. 4H0907064FH

Audi A6 C7 BCM2 Comfort Body Control Module Electrical Unit ECU 4H0907064FH

PLN 237.95

Free 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. 8W1959592

Audi Q5 8R Door Module Front Left N/S Control Unit ECU Controller 8W1959592

PLN 94.95

Free delivery: Jul 15

If paid before 14:00

Part no. 06L907309E

Audi A4 B9 2.0 TFSI DLVA 190HP Engine Control Unit ECU 06L907309E Automatic

PLN 427.95

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. 04L907309E-3

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

PLN 664.95

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. 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. 8E0057185KX

Audi A4 B7 Radio Media Player Audio CD Head Unit Player Concert 8E0057185KX

PLN 237.95

Free delivery: Jul 15

If paid before 14:00

Part no. 06K907425B-18

Audi S3 8V 2.0 TFSI DJHA 310HP Quattro Engine ECU Kit 06K907425B BCM + Key

PLN 1,234.95

Free delivery: Jul 15

If paid before 14:00

Part no. 8T8035464

Audi A5 8T Radio Amplifier Mounting Bracket Holder Support Plate 8T8035464

PLN 85.95

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. 06K907425B-15

Audi S3 8V 2.0 TFSI DJHA 310HP Quattro Engine Unit ECU Kit 06K907425B Automatic

PLN 1,519.95

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. 1J0973703

Audi A4 B7 Wire Harness Loom Cable Plug 3 Pin Connector 1J0973703

PLN 46.95

Delivery: Jul 15

If paid before 14:00

Part no. 06M907309D-1

Audi SQ5 FY 3.0 TFSI 354HP CWGD Quattro Engine ECU Kit Gateway + Key 06M907309D

PLN 2,374.95

Free delivery: Jul 15

If paid before 14:00

Part no. 4L0907355B-1

Audi Q5 8R Adblue Metering Control Module Unit ECU 4L0907355B

PLN 42.95

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. 8U0907468G

Audi Q3 8U Gateway Interface Control Module Unit ECU 8U0907468G

PLN 61.95

Free delivery: Jul 15

If paid before 14:00

Part no. 8X0035182K

Audi A1 8X Multimedia MMI Radio SD Player Stereo Sat Nav Head Unit 8X0035182K

PLN 1,139.95

Free delivery: Jul 15

If paid before 14:00

Part no. 8T0907559E-1

Audi A5 8T 3.2 FSI 265HP CALA Quattro Engine Control ECU 8T0907559E Automatic

PLN 1,044.95

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. 8T0971369A

Audi A4 B8 Lumbar Support Wire Harness Wiring Cable Front Right O/S 8T0971369A

PLN 189.95

Free delivery: Jul 15

If paid before 14:00

Part no. 5Q0919283G

Seat Ateca Skoda Fabia Mk4 Superb Mk3 Parking Distance Control Module 5Q0919283G

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. 8T0907468

Audi A4 B8 A5 S5 Gateway Diagnosis Interface ECU Data Module 8T0907468G

PLN 237.95

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. 8X0959673

Audi A1 8X Windscreen Heating Control Switch 8X0959673

PLN 42.95

Delivery: Jul 15

If paid before 14:00

Part no. 8K0907539

Audi A5 S5 8T Dashboard Sunlight Solar Sun Sensor 8K0907539

PLN 42.95

Delivery: Jul 15

If paid before 14:00

Part no. 8W0959595N

Audi A4 B9 Door Module Rear Right Left N/O/S Control Unit 8W0959595N

PLN 189.95

Free delivery: Jul 15

If paid before 14:00

Part no. 7E0907652A

Audi TT 8J ESP YAW Rate Lateral Acceleration Speed Sensor 7E0907655A

PLN 61.95

Free delivery: Jul 15

If paid before 14:00

Part no. 4N1907468AB

Audi A6 C8 Gateway Module Diagnosis Interface Control Unit 4N1907468AB

PLN 949.95

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. 4L2910401B-1

Audi Q7 4L 3.0 TDI CRCA Quattro Engine ECU Kit Lock + Ignition + Key 4L2910401B

PLN 3,324.95

Free delivery: Jul 15

If paid before 14:00

Part no. 4F0959794A

Audi A6 S6 Avant Quattro 4F Door Control Unit ECU Rear Right O/S 4F0959794A

PLN 46.95

Delivery: Jul 15

If paid before 14:00

Part no. 06H971627

Audi A5 8T 2.0 TFSI Petrol Fuel Injectors Wiring Cable Harness 06H971627

PLN 142.95

Free delivery: Jul 15

If paid before 14:00

Part no. 4L0971225E

Audi Q7 4L Positive Battery Terminal Cable Lead 4L0971225E

PLN 51.95

Delivery: Jul 15

If paid before 14:00

Part no. 04E907309AB

Audi A3 8V 1.4 TFSI CZEA 150HP Engine Control Unit ECU Kit 04E907309AB Manual

PLN 947.95

Free delivery: Jul 15

If paid before 14:00

Part no. 83F877041A

Audi Q3 F3 Mk2 Panoramic Sunroof Control Unit Module ECU 83F877041A

PLN 194.95

Free delivery: Jul 15

If paid before 14:00

Part no. 8T0941004BB-2

Audi A5 8T Front Right Halogen Headlight Headlamp Wiring Right O/S 8T0941004BB

PLN 46.95

Delivery: Jul 15 – 16

If paid before 14:00

Part no. 8R0035223F

Audi A4 B8 A5 8T Stereo Radio Sound System Speaker Amp Amplifier 8R0035223F

PLN 61.95

Free delivery: Jul 15

If paid before 14:00

Part no. 8P0862335M

Audi A4 B7 RS3 8P R8 42 TT 8J Bluetooth Interface Module Unit MMI 8P0862335M

PLN 46.95

Delivery: Jul 15

If paid before 14:00

Part no. 8Y0971036E

Audi A3 8Y Front Door Card Wiring Harness Loom Cable Passenger Side 8Y0971036E

PLN 189.95

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. 82A971589B

Audi A1 GB S3 8Y Multifunction Steering Wheel Button Wiring Harness 82A971589B

PLN 46.95

Delivery: Jul 15

If paid before 14:00

Part no. 83A947356K

Audi Q3 F3 LED Rear Door LED Lighting Module Control Unit Right O/S 83A947356K

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. 8T0971030A

Audi A5 8T Coupe Door Wiring Loom Connector Cable Passenger Side 8T0971030A

PLN 66.95

Free delivery: Jul 15

If paid before 14:00

Part no. 4H0959760F

Audi A8 D4 Front Seat Backrest Adjustment Module Left Right N/O/S 4H0959760F

PLN 237.95

Free delivery: Jul 15

If paid before 14:00

Part no. 80A907355G

Audi Q5 FY AdBlue Control Module ECU Unit 2.0 Diesel 80A907355G

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. 8S0971228C

Audi TTS FV Starter Motor Wiring Loom Cable Harness 8S0971228C

PLN 140.95

Free delivery: Jul 15

If paid before 14:00

Part no. 8S0035020B

Audi TT 8S FV Audio Multimedia Radio CD Player MIB2 Head Unit 8S0035020B

PLN 2,374.95

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. 4K5962239

Audi A6 C8 Tailgate Opening Steering Line D Pulse Generator Flap 4K5962239

PLN 189.95

Free delivery: Jul 15

If paid before 14:00

Part no. 8K0959663F

Audi A6 C7 Voltage Converter Stabilizer Control Module Unit ECU 8K0959663F

PLN 94.95

Free delivery: Jul 15

If paid before 14:00

Part no. 4N0907063NG

Audi A6 C7 Body Control Comfort Unit Module BCM Convenience Unit ECU 4N0907063NG

PLN 949.95

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. 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. 5QS959655A

Audi A3 S3 8Y Air Module Crash Impact Sensor Unit Control ECU 5QS959655A

PLN 284.95

Free delivery: Jul 15

If paid before 14:00

Part no. 8K0959792A

Audi A5 8T Door Control Module Front Left N/S 8K0959792A

PLN 42.95

Delivery: Jul 15

If paid before 14:00

Part no. 1K2971615A

Audi A3 8P Engine Bay Wiring Holder Harness Loom Cable Guide Bracket 1K2971615A

PLN 42.95

Delivery: Jul 15

If paid before 14:00

Part no. 4L0959795B

Audi Q7 4L Door Control Module Unit ECU Rear Left N/S 4L0959795B

PLN 61.95

Free delivery: Jul 15

If paid before 14:00

Part no. 8K0941031D-2

Audi A4 B8 Headlight Headlamp Wiring Harness Cable Plug Left N/S 8K0941031D

PLN 46.95

Delivery: Jul 15

If paid before 14:00

Part no. 8T0959792G

Audi A4 B8 Front Door Lock System Module Right O/S Control Unit ECU 8T0959792B

PLN 94.95

Free delivery: Jul 15

If paid before 14:00

Part no. 8E0857925G

Audi A3 8P TT 8J A4 B7 Ipod Interface Multimedia Storage Compartment 8E0857925G

PLN 42.95

Delivery: Jul 15

If paid before 14:00

Part no. 8X0971029S

Audi A1 8X Door Loom Wiring Harness Cable Front Driver Side 8X0971029Q

PLN 94.95

Free delivery: Jul 15

If paid before 14:00

Part no. 8P4971693S

Audi A3 8P Rear Door Wiring Loom Harness Left Right N/O/S 8P4971693S

PLN 61.95

Free delivery: Jul 15

If paid before 14:00

Part no. 8T0971369AC

Audi A4 B8 A5 8T Front Lumbar Support Harness Wiring Cable Right O/S 8T0971369AC

PLN 180.95

Free delivery: Jul 15

If paid before 14:00

Part no. 8T0959792P

Audi A5 8T Front Door Control Module Right O/S Passenger Side 8T0959792Q

PLN 94.95

Free delivery: Jul 15

If paid before 14:00

Part no. 1EA907376B

Audi A3 S3 8Y Rear Suspension Damper Module Control Unit ECU 1EA907376B

PLN 142.95

Free delivery: Jul 15

If paid before 14:00

Part no. 4N0906093D

Audi Q3 F3 Fuel Pump Control Module ECU 2.5 Petrol DNWA 4N0906093D

PLN 189.95

Free delivery: Jul 15

If paid before 14:00

Part no. 7L0971225

Audi Q7 4L 4.2 TDI Quattro Positive HV Battery Terminal Cable Harness 7L0971225

PLN 61.95

Free delivery: Jul 15

If paid before 14:00

Part no. 8U0945093M-1

Audi Q3 8U Tail Light LED Lamp Wiring Loom Plug Rear Left N/S Outer 8U0945093M

PLN 42.95

Delivery: Jul 15

If paid before 14:00

Part no. 8W6945093L-1

Audi A5 S5 F5 LED Tail Light Lamp Wire Harness Wiring Cable Left N/S 8W6945093L

PLN 42.95

Delivery: Jul 15

If paid before 14:00

Part no. 06D911021B

Audi A4 B8 A5 8T Engine Starter Motor Actuator Unit Petrol 06D911021B

PLN 75.95

Free delivery: Jul 15

If paid before 14:00

Part no. 4G5971035CA

Audi S6 C7 Door Wire Wiring Harness Loom Cable Front Driver Side 4G5971035CA

PLN 142.95

Free delivery: Jul 15

If paid before 14:00

Part no. 4G8907468H

Audi A7 4G8 S6 C7 Gateway Module Unit Diagnosis Interface 4G8907468H

PLN 237.95

Free delivery: Jul 15

If paid before 14:00

Part no. 1J0971243B

Audi TT 8N Battery Negative - Earth Cable Wiring Harness Cable 1J0971243B

PLN 61.95

Free delivery: Jul 15

If paid before 14:00

Part no. 4E0941817B

Audi A6 A8 D4 Q7 4M CAN Bus Jumper Contact Bridge Connector Plug 4E0941817B

PLN 42.95

Delivery: Jul 15

If paid before 14:00

Part no. 4H0035225

Audi A8L 4H Aerial Antenna Amplifier AMP Booster Module 4H0035225

PLN 94.95

Free delivery: Jul 15

If paid before 14:00

Part no. 4M0959595N

Audi Q7 4M Rear Door Control Module Unit ECU Left Right N/O/S 4M0959595N

PLN 113.95

Free delivery: Jul 15

If paid before 14:00

Part no. 3Q0937125C

Audi RS3 F3 RSQ3 F3 Fuse Box Housing Module Left N/S 2.5 TFSI 3Q0937125C

PLN 427.95

Free delivery: Jul 15

If paid before 14:00

Part no. 8W0035454

Audi A4 B9 Front Centre Dashboard Tweeter Speaker 8W0035454

PLN 61.95

Free delivery: Jul 15

If paid before 14:00

Part no. 8R0907468AE

Audi A5 8T 2.0 TDI Gateway Control Module Unit ECU 8R0907468AE

PLN 237.95

Free delivery: Jul 15

If paid before 14:00

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