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

Find it faster

Match to your vehicle

Make

Audi A3 8P 2.0 TDI BKD 140HP Engine Control Unit ECU Kit 03G906021LG Manual

€189.95

Part no. 4H0959760F

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

€66.95

Part no. 6C0907359

Audi A4 B8 Air Suspension Module Regulation Control Unit 6C0907359

€23.95

Part no. 8E1971035CQ

Audi A4 B7 Front Door Cables Wiring Loom Passenger's Side 8E1971035CQ

€23.95

Part no. 03G906056S-3

Audi A3 8P 1.9 TDI BLS 105HP Engine Control ECU Kit BCM + Key 03G906056S Manual

€218.95

Part no. 4G0907637H

Audi A6 C7 ESP Yaw Rate Module Control Unit Sensor ECU 4G0907637H

€75.95

Part no. 5DS010161-1

Audi A8 D4 Trailer Hook Tow Bar Control Module Unit 5DS010161

€123.95

Part no. 06L971627M

Audi Audi Q5 FY 2.0 TFSI QUATTRO Petrol Fuel Injectors Wiring Harness 06L971627M

€23.95

Part no. 8X0971035BG

Audi A1 8X Front Door Loom Wiring Harness Cable Driver's Side O/S 8X0971035BE

€28.95

Part no. 8W8971029D

Audi A5 S5 RS5 B9 Sportsback Door Wiring Loom Front Driver's Side O/S 8W8971029D

€32.95

Part no. 8K5945095AA-1

Audi A4 B8 Saloon Rear Lamp Tail Light Wiring Harness Plug Left N/S 8K0973706

€23.95

Part no. 4H0971104J

Audi A8L 4H Rear Bumper PDC Parking Sensor Wiring Harness Loom Cable 4H0971104J

€32.95

Part no. 8V3971036

Audi A3 S3 8V Front Door Card Wiring Harness Passenger Side 8V3971036

€28.95

Part no. 4H0919604H-2

Audi A8 4H Head Up Display Hud Project Screen Control Unit Module 4H0919604G

€165.95

Part no. 4H0945093H-2

Audi A8 D4 Rear Taillight Tail Light Lamp Wiring Inner Left N/S 4H0945093H

€23.95

Part no. 8W0907064BC

Audi A4 B9 Body Comfort Control Module ECU Unit 8W0907064BC

€113.95

Part no. 7PP907283

Audi RS6 C7 Tire Tyre Pressure Monitor System Moduel Control Unit ECU 7PP907283

€23.95

Part no. 8X0035223D

Audi Q3 8U Amplifier BOSE Premium Audio Sound System Module 8X0035223D

€85.95

Part no. 4H0937517

Audi A8L 4H Fuse Relay Battery Junction Box Housing 4H0937517

€66.95

Part no. 4K0971237

Audi A6 C8 A7 4G Engine Earth Line Ground Wiring Harness Cable 4K0971237

€47.95

Part no. 4K9035225B

Audi A6 C8 Antenna Aerial Amplifier AMP 4K9035225B

€32.95

Part no. 4K0907347B

Audi A6 C8 Mild Hybrid Power Distribution Mount Bracket Support 4K0907347B

€23.95

Part no. 4H0945095H-2

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

€23.95

Part no. 8V5035225

Audi A3 8V Keyless Entry Amplifier Control Box Module Aerial Antenna 8V5035225

€23.95

Part no. 06A903143P

Audi TT 8N Alternator Bracket Mount Holder 06A903143P

€23.95

Part no. 8K0972994

Audi A5 S5 RS5 F5 Seat Exeo Wiring Loom Harness Plug Connector Housing 8K0972994

€23.95

Part no. 4M0959792E

Audi A5 F5 Door Module Control Unit ECU Front Passenger Side 4M0959792E

€28.95

Part no. 8T0971029S

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

€42.95

Part no. 5QF802717A

Audi RSQ3 F3 Battery Holder Cover Bracket Mount Retainer Lid Top 5QF802717A

€23.95

Part no. 03G906016FF

Audi A3 8P 1.8 TFSI CDAA 160HP Engine Module ECU Kit 03G906016FF Automatic

€75.95

Part no. 4G8971095AH

Audi A6 C7 A7 4G Front PDC Parking Sensor Wiring Loom Harness 4G8971095H

€118.95

Part no. 059911021K

Audi A5 8T 3.0 TDI CLAB Diesel Engine Starter Motor 059911021K

€37.95

Part no. 8P0907063B

Audi TT 8J Body Comfort Control BCM Module Unit ECU 8P0907063B

€113.95

Part no. 8P0971679L

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

€23.95

Part no. 8W0941824AK

Audi A4 B9 A5 F5 Q5 FY Fuse Box Battery Terminal 8W0941824AK

€23.95

Part no. 4H0907182G

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

€42.95

Part no. 8E0972081

Audi A4 B8 A5 8T 8F Starter Wiring Loom Harness Clip 8E0972081

€23.95

Part no. 2100493N

Audi A5 8T Seat Cable Front Left Right N/O/S Wiring Loom Harness 2100493N

€23.95

Part no. 8E0971693P

Audi A4 B7 Door Card Speaker Harness Loom Cable Wiring Rear 8E0971693P

€23.95

Part no. 8W6971036BN

Audi S5 F5 Front Door Wiring Harness Cable Passenger Side 8W6971036BN

€70.95

Part no. 03L906022RC

Audi TT 8J 2.0TDI 170HP CBBB Quattro Engine Control ECU 03L906022RC Manual

€142.95

Part no. 8H0959255B

Audi A4 B6 B7 Cabriolet Comfort Convenience Body Control Module ECU 8H0959255B

€232.95

Part no. 5Q0971068G

Audi A3 8V VW Golf AU Jetta BU Exhaust Flap Wiring Loom Harness Cable 5Q0971068G

€23.95

Part no. 8K0907383E-1

Audi A5 8T Towbar Trailer Hitch Control Module Unit ECU HELLA 8K0907383E

€61.95

Part no. 8T0959793B

Audi A5 8T Sportback Front Door Module Control Unit Driver's Side 8T0959793B

€23.95

Part no. 8K0907064JE

Audi A5 8T Body Control Comfort Unit Module BCM Convenience Unit ECU 8K0907064JE

€51.95

Part no. 8U0971035L

Audi Q3 8U Door Loom Wiring Harness Cable Front Right O/S 8U0971035L

€23.95

Part no. 4L0910441B-1

Audi Q7 4L Rear Reversing Camera View Module Control Unit ECU 4L0910441B

€89.95

Part no. 89A959107-1

Audi A5 F5 Sportback Tailgate Bootlid Control Unit Module ECU 89A959107

€75.95

Part no. 8K0941824A

Audi A1 A4 A6 A7 A8 Fuse Box Connector Socket Module Unit 8K0941824A

€23.95

Part no. 4G9945093F-2

Audi A6 C7 Rear Taillight Light Lamp Lamp Harness Loom Wire Left N/S 4G9945093F

€23.95

Part no. 8E0910560J-1

Audi S4 B7 4.2 BBK Quattro 344HP Engine Module ECU Kit Key Manual 8E0910560J

€161.95

Part no. 02T911024JX

Audi A1 8X 1.2 TFSI CBZA Petrol Engine Starter Motor 02T911024JX

€23.95

Part no. 03C906016G-1

Audi A3 8P Engine Control ECU 125HP 1.4 TSI Petrol CAXC Automatic 03C906016G Kit

€165.95

Part no. 80A971235

Audi Q5 Mk2 FY Negative Battery Earth Cable Terminal Lead 80A971235

€28.95

Part no. 03L906018KP-1

Audi TT 8J CFGB 2.0 TDI Quattro 170HP Engine ECU Kit 03L906018KP Automatic

€123.95

Part no. 4H0971641E

Audi A8 D4 Centre Console Wiring Loom Cable Harness 4H0971641E

€23.95

Part no. 8E0907559H

Audi A4 B7 3.2 FSI Quattro AUK 255HP Engine Control Unit ECU 8E0907559H Manual

€208.95

Part no. 8K0941824D

Audi Volkswagen Fuse Box Connector Socket Module Unit 8K0941824D

€23.95

Part no. 059911024E

Audi Q7 4L VW Touareg MK2 3.0 TDI Diesel Starter Motor 059911024E

€47.95

Part no. 4E0035652A

Audi A6 C6 MMI Multimedia Sat Nav Navigation Control Head Unit 4E0035652A

€56.95

Part no. 8W0906259N-1

Audi A5 F5 45 TFSI DKNA 245HP Quattro Engine ECU Kit 8W0906259N Gateway + Key

€351.95

Part no. 5Q0971230FA

Audi S3 8V Alternator Wiring Harness Set Three Phase 5Q0971230FA

€28.95

Part no. 8T0035570

Audi A6 C6 Interference Disturbance Suppressor Filter Module 8T0035570

€23.95

Part no. 8P0035464

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

€23.95

Part no. 8R0971502A

Audi Q5 8R Battery Fuse Box Terminal Retaining Mount Bracket Holder 8R0971502A

€23.95

Part no. 4H0971365J

Audi A8 D4 Seat Cable Front Left Right N/O/S Seatbelt Warning Wiring 4H0971365J

€37.95

Part no. 8H1971035CN

Audi A4 B7 Convertible Front Driver Side Door Wiring Harness 8H1971035CN

€32.95

Part no. 4L0971030Q

Audi Q7 4L Door Wiring Harness Cable Loom Front Passenger Side N/S 4L0971030Q

€23.95

Part no. 80A035225Q

Audi Q5 Mk2 FY Aerial Antenna Amplifier Module Unit 80A035225Q

€23.95

Part no. 5Q0959592M

Audi Q2 GA Door Module Control Unit Front Passenger Side 5Q0959592M

€23.95

Part no. 8F0907461

Audi A5 8F Central Convenience Module ECU Mounting Bracket Holder 8F0907461

€23.95

Part no. 8H1971029AL

Audi A4 B7 Convertible Front Driver Side Door Wiring Harness Cable 8H1971029AL

€85.95

Part no. 8K0907539

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

€23.95

Part no. 4M0941824AP

Audi Q7 4M Fuse Box Power Distribution Unit Control Module 4M0941824AP

€23.95

Part no. 8U0907468G

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

€23.95

Part no. 8T0971369A

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

€42.95

Part no. 1S0919275D-SEB

Audi Q3 8U PDC Parking Distance Control Sensor Sepang Blue Pearl Y5Q 1S0919275D

€23.95

Part no. 8S0907159A

Audi TTS FV Impact Sound Control Unit Module 8S0907159A

€37.95

Part no. 8P4971036E

Audi A3 8P Front Door Card Wiring Loom Harness Passenger Side 8P4971036E

€23.95

Part no. 03L911021E

Audi A4 B8 Starter Motor Engine Motor Actuator Diesel Bosch 03L911021E

€37.95

Part no. 8T0959795H

Audi A4 B8 Door Control Module Unit ECU Rear Left Right N/O/S 8T0959795B

€23.95

Part no. 8T8971030K

Audi A5 8T Front Passenger Door Wiring Harness Loom Cable 8T8971030K

€23.95

Part no. 8P4945093B-2

Audi A3 8P Rear Tail Light Lamp LED Wiring Harness Cable Left N/S 8P4945093B

€23.95

Part no. 8T0971029

Audi A5 S5 8T Front Door Wire Wiring Loom Harness Driver's Side 8T0971029

€23.95

Part no. 8X0035110C

8X0035110C A1 8X A4 B8 A5 8T CD Player Changer 6 Disc 8X0035110C

€28.95

Part no. 83A962239

Audi A3 8Y Q3 F3 Rear Hatch Boot Lid Tailgate Opening Cable Wiring 83A962239

€70.95

Part no. 4L0698007A

Audi Q7 4L Air Suspension Level Height Adjustment Compressor Pump 4L0698007A

€89.95

Part no. 03L903143K

Audi A4 B8 2.0 TDI Alternator Mount Tensioner Pulley Bracket Support 03L903143K

€23.95

Part no. 8T0971030C

Audi A5 8T Coupe Front Door Wiring Loom Harness Passenger Side 8T0971030C

€23.95

Part no. 4M0959793E

Audi A4 B9 A5 F5 Front Door Control Unit Module ECU Left N/S 4M0959793E

€32.95

Part no. 8P4945094B-2

Audi A3 8P Rear Tail Light Lamp LED Wiring Harness Cable Right O/S 8P4945094B

€23.95

Part no. 8W0947356E

Audi A5 S5 F5 Interior Door Panel Courtesy Light LED Wiring Harness 8W0947356E

€23.95

Part no. 8K0971845A

AUDI A5 8T 2.0 TDI CGLC Fuse Relay Box Power Distribution 8K0971845A

€23.95

Part no. 4G0971765

Audi RS6 C7 Mirror Wing Adjust Switch Loom Harness Wiring Cable 4G0971765

€23.95

Part no. 059911022

AUDI Q5 8R Quattro 3.0 TDI Diesel CCWA CCWB Starter Motor 059911022

€37.95

Part no. 4H0035061J

Audi A8L 4H Head Unit Radio CD Player Navigation GPS 4H0035061J

€398.95

Part no. 8W0907777E

Audi A4 B9 A5 S5 F5 Chassis Module Control Unit EFP 8W0907777E 8W0907777C

€222.95

Part no. 4L0907428

Audi Q7 4L Parking Aid Camera Control Module ECU 4L0907428

€246.95

...

Showing 1387-1485 of 3357 products