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 A5 8T A6 C7 A7 4G A8 4H TV Tuner Digital Video Control Module 4G0919129A

PLN 237.95

Free delivery: Jul 16

If paid before 14:00

Part no. 4G8971085CE

Audi A7 4G8 Rear Bumper Parking Sensor Wiring Loom 4G8971085CE

PLN 94.95

Free delivery: Jul 16

If paid before 14:00

Part no. 83A945091-2

Audi Q3 F3 Outer Rear Tail Light Plug Wire Cable Connector Left N/S 83A945091

PLN 42.95

Delivery: Jul 16

If paid before 14:00

Part no. 8K0959793N

Audi Q5 8R Front Door Module Control Unit ECU Driver's Side 8K0959793N

PLN 42.95

Delivery: Jul 16

If paid before 14:00

Part no. 4M0907508

Audi A6 C8 Acceleration Crash Impact Sensor Control Unit 4M0907508

PLN 94.95

Free delivery: Jul 16

If paid before 14:00

Part no. 5Q0971230BC

Audi A3 8V Battery Cable Starter Alternator Wiring Harness 5Q0971230BC

PLN 75.95

Free delivery: Jul 16

If paid before 14:00

Part no. 7M0951253A

Audi VW Volkswagen Seat Relay Unit Module 4 Pins 7M0951253A

PLN 46.95

Delivery: Jul 16

If paid before 14:00

Part no. 4K0971226

Audi A6 C8 Positive Plus + Wiring Loom Cable Lead 4K0971226

PLN 94.95

Free delivery: Jul 16

If paid before 14:00

Part no. 4F1971845A

Audi R8 42 Fuse Box Electrical Connector Relay Control Unit Module 4F1971845A

PLN 61.95

Free delivery: Jul 16

If paid before 14:00

Part no. 4F0903291

Audi A6 C6 3.0 TDI Suppression Condenser Noise Filter 4F0903291

PLN 42.95

Delivery: Jul 16

If paid before 14:00

Part no. 8R0907364B

Audi Q5 8R A5 8T A4 B8 Active Suspension Module Damping Control Unit 8R0907364B

PLN 142.95

Free delivery: Jul 16

If paid before 14:00

Part no. 5WA980653E

Audi A3 S3 8Y Front Camera FAS Lane Assistance Control Unit 5WA980653E

PLN 237.95

Free delivery: Jul 16

If paid before 14:00

Part no. 4F0919603

Audi A6 C6 Display Screen Multimedia Navigation Dashboard Unit 4F0919603

PLN 94.95

Free delivery: Jul 16

If paid before 14:00

Part no. 05L907309B-2

Audi Q3 F3 40 TDI DTUA Quattro 200HP Engine Control ECU Kit 05L907309B Automatic

PLN 902.95

Free delivery: Jul 16

If paid before 14:00

Part no. 8F0971030AM

Audi A5 8T Front Door Electric Wiring Loom Harness Passenger's Side 8F0971030AM

PLN 189.95

Free delivery: Jul 16

If paid before 14:00

Part no. 8K2907115AF-1

Audi A5 8T Engine Module ECU Kit 2.0 TFSI 180HP Key Lock Manual 8K2907115AF

PLN 569.95

Free delivery: Jul 16

If paid before 14:00

Part no. 5Q0971230FP

Battery Cable Audi A3 8V Starter Alternator Wiring Harness 5Q0971230FP

PLN 94.95

Free delivery: Jul 16

If paid before 14:00

Part no. 83A971688H

Audi Q3 RSQ3 F3 Door Wiring Loom Harness Rear Right O/S 83A971688H

PLN 113.95

Free delivery: Jul 16

If paid before 14:00

Part no. 5G0907324

Audi RSQ3 F3 VW Golf MK7 Active Suspension Module Mount Bracket Holder 5G0907324

PLN 89.95

Free delivery: Jul 16

If paid before 14:00

Part no. 8F0971035H

Audi A5 8F Cabriolet Door Card Wiring Harness Front Driver's Side 8F0971035H

PLN 94.95

Free delivery: Jul 16

If paid before 14:00

Part no. 8W0971030CH

Audi A4 B9 Front Door Wiring Loom Harness Passenger Side 8W0971030CH

PLN 123.95

Free delivery: Jul 16

If paid before 14:00

Part no. 8T0907468R

Audi A4 B8 Gateway Control Unit Module ECU 8T0907468R

PLN 46.95

Delivery: Jul 16

If paid before 14:00

Part no. 3Q0959435D

Audi TT FV Mk3 8S Keyless Module Control Unit Comfort Access 3Q0959435D

PLN 61.95

Free delivery: Jul 16

If paid before 14:00

Part no. 8V4971036Q

Audi A3 8V Sportback Front Passenger's Door Loom Wiring Harness 8V4971036H

PLN 61.95

Free delivery: Jul 16

If paid before 14:00

Part no. 4G5945096C-2

Audi A6 C7 Rear Outer Taillight Lamp LED Wiring Harness Right O/S 4G5945096C

PLN 42.95

Delivery: Jul 16

If paid before 14:00

Part no. 4L0971384K

Audi Q7 4L Seat Frame Wiring Harness Loom Wire Front Right O/S 4L0971384K

PLN 46.95

Delivery: Jul 16

If paid before 14:00

Part no. 8T0959760C

Audi A5 8T Front Seat Control Module Unit Left Right N/O/S 8T0959760C

PLN 332.95

Free delivery: Jul 16

If paid before 14:00

Part no. 03L906023PP-2

Audi A3 8P 1.6 TDI 105HP CAYC Engine Control ECU Kit BCM Key 03L906023PP Manual

PLN 569.95

Free delivery: Jul 16

If paid before 14:00

Part no. 4L1971073D

Audi Q7 4L Front Frame Air Module Wiring Harness Cable 4L1971073D

PLN 123.95

Free delivery: Jul 16

If paid before 14:00

Part no. 4L0971693E

Audi Q7 4L Rear Door Wiring Harness Cable Loom Left Right N/O/S 4L0971693E

PLN 142.95

Free delivery: Jul 16

If paid before 14:00

Part no. 8W0962239

Audi A5 S5 F5 Boot Trunk Lid Tailgate Opening Sensor Line Harness Wire 8W0962239

PLN 142.95

Free delivery: Jul 16

If paid before 14:00

Part no. 5Q0959592D

Door Module Audi A3 8V VW Golf 7 Seat Leon 3 Front Right O/S 5Q0959592D

PLN 60.95

Free delivery: Jul 16

If paid before 14:00

Part no. 8W8035225D

Audi A5 F5 Radio Aerial Antenna Amplifier Left Upper N/S 8W8035225D

PLN 113.95

Free delivery: Jul 16

If paid before 14:00

Part no. 8U0971035AK

Audi Q3 8U Door Loom Wiring Harness Cable Front Driver's Side 8U0971035AK

PLN 94.95

Free delivery: Jul 16

If paid before 14:00

Part no. 8H1971035CR

Audi A4 S Line Door Wiring Harness Cable Front Passenger 8H1971035CR 8H1971035CS

PLN 218.95

Free delivery: Jul 16

If paid before 14:00

Part no. 8K0907063DG

Audi Q5 8R Body Control Comfort Unit Module Unit 8K0907063DG

PLN 332.95

Free delivery: Jul 16

If paid before 14:00

Part no. 8X0959792B

Audi A1 8X Door Module Control Unit Controller Front Passenger's Side 8X0959792B

PLN 46.95

Delivery: Jul 16

If paid before 14:00

Part no. 02E911024A

Audi A3 8V 2.0 TDI Engine Starter Motor Bosch 02E911024A

PLN 113.95

Free delivery: Jul 16

If paid before 14:00

Part no. 1J0941385A

Audi TT 8N VW Golf Mk4 Relay Box Cover Housing Panel 1J0941385A

PLN 42.95

Delivery: Jul 16

If paid before 14:00

Part no. 8K0907064JE

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

PLN 142.95

Free delivery: Jul 16

If paid before 14:00

Part no. 03F906070GN-2

Audi A1 8X 1.2 TFSI CBZA 86HP Engine Control ECU Kit 03F906070GN Manual

PLN 664.95

Free delivery: Jul 16

If paid before 14:00

Part no. 4M4915233AE

Audi A6 C8 Boot Battery Monitoring Control Module Unit 4M4915233AE

PLN 617.95

Free delivery: Jul 16

If paid before 14:00

Part no. 4F0971981A

Audi A6 C6 Fuse Box Holder Cover Cap Lid 2.0 TFSI 4F0971981A

PLN 46.95

Delivery: Jul 16

If paid before 14:00

Part no. 8P0953519G

Audi TT 8J A3 8P Windscreen Wiper Stalk Switch Assembly 8P0953519G

PLN 42.95

Delivery: Jul 16

If paid before 14:00

Part no. 8K0971035BD

Audi A5 S5 8T Front Driver Side Door Wiring Loom Harness Cable 8K0971035BD

PLN 94.95

Free delivery: Jul 16

If paid before 14:00

Part no. 4H0941824

Audi A6 C8 Fuse Box Relay Plug Socket Fuse Unit Holder Bracket 4H0941824

PLN 42.95

Delivery: Jul 16

If paid before 14:00

Part no. 1K0915336B

Audi A3 8P Volkswagen Golf Mk5 Battery Side Cover Surround Housing 1K0915336B

PLN 46.95

Delivery: Jul 16

If paid before 14:00

Part no. 8K0907401-1

Audi A5 8T 3.0TDI CAPA Quattro 240HP Engine ECU Kit Ignition 8K0907401 + Key

PLN 949.95

Free delivery: Jul 16

If paid before 14:00

Part no. 06J971082D

Audi Q3 8U Engine Injector Module Wiring Harness Cable 2.0 TFSI 06J971082E

PLN 85.95

Free delivery: Jul 16

If paid before 14:00

Part no. 82G971688F

Audi A1 GB Mk2 Rear Door Wiring Loom Harness Cable Right O/S Side 82G971688F

PLN 56.95

Delivery: Jul 16

If paid before 14:00

Part no. 03L906018KP

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

PLN 949.95

Free delivery: Jul 16

If paid before 14:00

Part no. 8V4971693B

Audi A3 RS3 8V Rear Door Wiring Loom Harness Left Right N/O/S 8V4971693B

PLN 104.95

Free delivery: Jul 16

If paid before 14:00

Part no. 03G906056S-3

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

PLN 902.95

Free delivery: Jul 16

If paid before 14:00

Part no. 8V4971687K

Audi A3 RS3 8V 5Dr Door Harness Loom Wiring Rear Left Right N/O/S 8V4971687K

PLN 42.95

Delivery: Jul 16

If paid before 14:00

Part no. 8F0971029BD

Audi A5 8F Front Door Wiring Loom Harness Cable Driver's Side 8F0971029BD

PLN 237.95

Free delivery: Jul 16

If paid before 14:00

Part no. 8W0959595M

Audi A4 B9 A5 F5 Door Module Rear Right Left N/O/S Control Unit 8W0959595M

PLN 113.95

Free delivery: Jul 16

If paid before 14:00

Part no. 8W0907064EC

Audi A5 F5 BCM Body Comfort Module Onboard Control Unit ECU 8W0907064EC

PLN 284.95

Free delivery: Jul 16

If paid before 14:00

Part no. 8K0907551-3

Audi S5 8F 3.0 TFSI 333HP CAKA Quattro Engine Control Unit ECU 8K0907551

PLN 712.95

Free delivery: Jul 16

If paid before 14:00

Part no. 8T0971030C

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

PLN 61.95

Free delivery: Jul 16

If paid before 14:00

Part no. 07L971627F

Audi S8 D3 Wiring Harness Wire Injectors Cylinders 1-5 5.2 FSI Petrol 07L971627F

PLN 142.95

Free delivery: Jul 16

If paid before 14:00

Part no. 8U0919603

Audi Q3 8U Multimedia MMI Head-Up Display Screen 6" RMC Sat Nav 8U0919603

PLN 474.95

Free delivery: Jul 16

If paid before 14:00

Part no. 1K0915181L

Audi Q3 8U Q3 S3 VW Scirocco Mk3 Battery Wiring Wire Negative Cable 1K0915181L

PLN 61.95

Free delivery: Jul 16

If paid before 14:00

Part no. 7PP907283

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

PLN 46.95

Delivery: Jul 16

If paid before 14:00

Part no. 8W7907468C

Audi A4 B9 A5 S5 F5 Gateway Module Control Unit 8W7907468C

PLN 854.95

Free delivery: Jul 16

If paid before 14:00

Part no. 8K0971688AC

Audi A4 B8 Door Wiring Harness Cable Loom Rear Right O/S 8K0971688AC

PLN 42.95

Delivery: Jul 16

If paid before 14:00

Part no. 8K0951253-1

Audi VW Volkswagen Seat Relay 643 Unit Module 4 Pins Set X2 8K0951253

PLN 61.95

Free delivery: Jul 16

If paid before 14:00

Part no. 4H0907063CD

Audi A8L 4H Onboard Comfort Control Module CCM Unit ECU 4H0907063CD

PLN 189.95

Free delivery: Jul 16

If paid before 14:00

Part no. 4K0906121D

Audi A4 B9 A5 F5 A6 C8 Fuel Pump Control Pump Unit Module ECU 4K0906121D

PLN 284.95

Free delivery: Jul 16

If paid before 14:00

Part no. 03L906018JJ

Audi A4 B8 A5 8T 2.0 TDI 177HP Engine Control Module ECU 03L906018JJ Automatic

PLN 237.95

Free delivery: Jul 16

If paid before 14:00

Part no. 4K0971349L

Audi A6 C6 Alternator Main Cable Wiring Harness Loom 4K0971349L

PLN 284.95

Free delivery: Jul 16

If paid before 14:00

Part no. 8W0915429A

Audi A4 S4 8W A5 S5 F5 Battery Positive Terminal Cover Housing Cap 8W0915429A

PLN 46.95

Delivery: Jul 16

If paid before 14:00

Part no. 8T0907468H

Audi A4 B8 Gateway Interface Control Module Unit ECU 8T0907468H

PLN 61.95

Free delivery: Jul 16

If paid before 14:00

Part no. 8W0907468J

Audi A4 B9 Gateway Control Unit Module ECU 8W0907468J

PLN 1,899.95

Free delivery: Jul 16

If paid before 14:00

Part no. 8V0907159

Audi A3 RS3 8V Impact Sound Actuator Body Control Unit Module ECU 8V0907159

PLN 94.95

Free delivery: Jul 16

If paid before 14:00

Part no. 07K903023F

Audi RS3 8P RSQ3 8U Alternator Generator BOSH 14V 140A 07K903023F

PLN 313.95

Free delivery: Jul 16

If paid before 14:00

Part no. 8E2971235A

Audi A4 B7 Seat Exeo 3R Battery Negative Terminal Cable 8E2971235A

PLN 61.95

Free delivery: Jul 16

If paid before 14:00

Part no. 8T0971035A

Audi A5 8T Coupe Front Door Wiring Loom Harness Driver's Side 8T0971035A

PLN 61.95

Free delivery: Jul 16

If paid before 14:00

Part no. 5Q0907530P

Audi A3 8V Gateway Control Module Unit ECU 5Q0907530P

PLN 61.95

Free delivery: Jul 16

If paid before 14:00

Part no. 420035503-1

Audi R8 42 GSM Antennna Receiver Amplifier Radio 420035503

PLN 902.95

Free delivery: Jul 16

If paid before 14:00

Part no. 82A945091C-2

Audi A1 GB Rear LED Tail Light Lamp Wiring Plug Cable Left N/S 82A945091C

PLN 46.95

Delivery: Jul 16

If paid before 14:00

Part no. 5Q0959651B

Audi A3 8V Front Impact Sensor Crash Detection Module Unit 5Q0959651B

PLN 113.95

Free delivery: Jul 16

If paid before 14:00

Part no. 8T0907441B

Audi S5 8T Rear Reversing Camera Module View Camera Control Unit ECU 8T0907441B

PLN 474.95

Free delivery: Jul 16

If paid before 14:00

Part no. 8T0035570

Audi A6 C6 Interference Disturbance Suppressor Filter Module 8T0035570

PLN 46.95

Delivery: Jul 16

If paid before 14:00

Part no. 3C0909141

Audi S1 8X Skoda Octavia Mk3 Keyless Entry Antenna Control Module 3C0909141

PLN 42.95

Delivery: Jul 16

If paid before 14:00

Part no. 83A035842A

Audi A1 GB Mk2 Multimedia Sat Nav Radio Head Unit Controller 83A035842A

PLN 678.95

Free delivery: Jul 16

If paid before 14:00

Part no. 8U0971589J

Audi A5 8T A7 4G Q5 8R RS4 B8 Steering Wheel Air Module Cable Wiring 8U0971589J

PLN 113.95

Free delivery: Jul 16

If paid before 14:00

Part no. 4E0941286G

Audi S8 D3 Front Headlight Level Control Sensor Right O/S 4E0941286G

PLN 208.95

Free delivery: Jul 16

If paid before 14:00

Part no. 04L907309R-9

Audi A3 8V 2.0 TDI 150HP DCYA Engine Control ECU Kit 04L907309R Manual Gearbox

PLN 569.95

Free delivery: Jul 16

If paid before 14:00

Part no. 83F971104F

Audi Q3 F3 Rear Bumper PDC Wiring Loom Cabling Parking Sensor 83F971104F

PLN 237.95

Free delivery: Jul 16

If paid before 14:00

Part no. 8V4971030

Audi A3 8V Front Door Wiring Loom Harness Passenger Side 8V4971030

PLN 70.95

Free delivery: Jul 16

If paid before 14:00

Part no. 4G0907159B

Audi S7 4G8 Alarm Signal Body Sound Impact Control Module Unit 4G0907159B

PLN 94.95

Free delivery: Jul 16

If paid before 14:00

Part no. 5WA919298

Audi S3 8Y PDC Parking Distance Assist Sensor Module Control Unit 5WA919298

PLN 189.95

Free delivery: Jul 16

If paid before 14:00

Part no. 4H0971104J

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

PLN 142.95

Free delivery: Jul 16

If paid before 14:00

Part no. 8P0035535

Audi A4 B7 Amplifier Bracket Aerial Antenna Module Mount Holder 8P0035535

PLN 47.95

Delivery: Jul 16

If paid before 14:00

Part no. 8W0907777L

Audi RS5 F5 Chassis Module Control Unit 8W0907777L

PLN 1,234.95

Free delivery: Jul 16

If paid before 14:00

Part no. 4G8971693C

Audi A7 4G Door Wiring Harness Cable Loom Rear Left Right N/O/S 4G8971693C

PLN 85.95

Free delivery: Jul 16

If paid before 14:00

Part no. 8K0907297A

Audi S5 8T Parking Aid PDC ECU Control Unit Bracket Holder Retainer 8K0907297A

PLN 61.95

Free delivery: Jul 16

If paid before 14:00

Part no. 8K0959792S

Audi A4 B8 Front Door Control Module Unit ECU Passenger Side 8K0959792S

PLN 42.95

Delivery: Jul 16

If paid before 14:00

Part no. 4G8959792J

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

PLN 42.95

Delivery: Jul 16

If paid before 14:00

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