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 A4 B8 Air Module Control Unit ECU Crash Control 8K0959655L

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8K0907064CC

Audi A4 B8 Body Control Comfort Unit Module BCM Unit ECU 8K0907064CC

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4G8959793E

Audi A6 C7 Front Door Control Module Unit ECU Driver's Side 4G8959793E

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4L0910441C

Audi Q7 4L Rear Reversing Camera Module View Control Unit ECU 4L0910441C

€94.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4H0959651A

Audi A1 A6 A7 Impact Crash Control Sensor Module ECU 4H0959651A

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4M0035456A

Audi A4 B9 Antenna Amplifier Aerial Control Module Unit 4M0035456A

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8W0959593M

Audi A4 B9 A5 F5 Front Door Module Control Unit ECU Driver Side 8W0959593M

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4G0907637L

Audi RS6 C7 Acceleration Yaw Rate Sensor Module Control Unit ECU 4G0907637L

€37.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8U0959655D

Audi Q3 8U Air Module ECU Sensor Control Unit 8U0959655D

€47.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8K0959795A

Audi A4 B8 Rear Door Module Control Unit ECU Left N/S 8K0959795A

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 3Q0907338C

Audi VW Seat Skoda Headlight Aim Range Control Unit Module ECU Xenon 3Q0907338C

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 059903015P

Volkswagen Touareg Audi Q7 Water Cooled Alternator 190A 059903015P

€80.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8W0907428C

Audi A4 B9 Camera Control Module Unit ECU 8W0907428C

€332.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4L0907290

Audi Q7 4L Gateway Convenience Module Unit Control ECU 4L0907290

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8W0906093G

Audi A4 B9 A5 F5 Petrol Engine Fuel Pump Control Unit Module 8W0906093G

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8W2035043E

Audi A4 B9 MMI Multimedia Sat Nav Navigation Control Head Unit 8W2035043E

€474.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4H0907658B

Audi A3 8V A5 A6 A7 Air Quality Sensor Unit 4H0907658B

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 06L971627A

Audi S1 8X S3 8V VW Golf R Mk7 2.0 TFSI Fuel Injectors Wiring Harness 06L971627A

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8E0907637

Audi A4 B7 YAW Sensor ESP Rotation Rate Acceleration Control Unit 8E0907637

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8K0937517A

Audi A4 B8 A5 8T Battery Postive Terminal Distribution Power Board 8K0937517A

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4F0959793R

Audi A6 C6 Door Module Front Driver's Side Control Unit ECU 4F0959793R

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8K0959792J

Audi A4 B8 Door Module Front Left N/S Control Unit Module ECU 8K0959792J

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 3C0919275S-CGR

Audi TT 8J PDC Parking Distance Sensor Control Condor Grey - Y7E 3C0919275S

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8P0959655J

Audi A3 E 104 T Air Module ECU Sensor Control Unit 8P0959655J

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8P0035399B

Audi A3 8P Speaker Tweeter Front Left Right N/O/S Pillar A 8P0035399B

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4F0907468M

Audi A6 C6 Diagnostic Interface Gateway Module ECU Control Unit 4F0907468M

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8K5907357B

Audi A4 B8 A5 8T Front Lamp Headlight Range Control Module 8K5907357B

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8U0959655B

Audi Q3 8U Air Module Control Unit SRS System ECU 8U0959655B

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8P3907357B

Audi S3 8P Xenon Headlight Range Control Module Unit ECU 8P3907357B

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 06M907309D

Audi A4 S4 B9 3.0 TFSI 355HP CWGD Quattro Engine Control Unit ECU 06M907309D

€265.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4M0907247A

Keyless Entry Amplifier Audi A4 B9 A5 F5 Control Box Module Antenna 4M0907247A

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5QA919294C

Audi Seat Skoda Volkswagen PDC Parking Sensor Control Unit Module 5QA919294C

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 1S0919275D-FSI

Audi Q3 8U PDC Parking Distance Control Sensor 1S0919275D Foil Silver - Z7G

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4L0959793B

Audi Q7 4L Front Door Module Driver Right O/S Side Control Unit 4L0959793B

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 06L971627K

Audi TT FY 2.0 TFSI Petrol Fuel Injectors Wiring Harness 06L971627K

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8H0959985B

Audi Q7 4L Keyless Module ECU Door Lock Control Unit 8H0959985B

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8T2035652F

Audi A5 8T A4 B8 Sat Navi Stereo Radio Audio MMI Head Unit CD Player 8T2035652F

€99.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 059971627D

Audi A6 C7 High Pressure Pump Fuel Line Electrical Wiring Harness 059971627D

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5Q0959595K

Audi A3 8V Rear Door Control Module Unit ECU Left Right N/O/S 5Q0959595K

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4L0941329

Audi Q7 S LINE Headlight Power Control Unit Module 4L0941329

€80.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8P4035223D

Audi S3 8P Audio Sound BOSE Amplifier Stereo System Module 8P4035223D

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8R0919604

Audi A5 8T Multimedia Radio Sat Nav Screen Display Head Unit 8R0919604

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 1S0919275D-BLK

Audi Q3 8U PDC Parking Distance Control Sensor Black - Z9Y 1S0919275D

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8W0959595H

Audi A5 F5 Rear Door Control Module Unit ECU Left Right N/O/S 8W0959595H

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5Q0959592F

Door Module Audi A3 8V Volkswagen Golf 7 Control ECU Front Left N/S 5Q0959592F

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8K0907063DG

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

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8U0857273E

Audi Q3 S Line Multimedia Radio Sat Nav Screen Display Head Unit 8U0857273E

€37.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8K0959663D

Audi Q3 8U A3 8P A6 C7 Voltage Stabilizer Converter Control Module 8K0959663D

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 02E911022H

Audi S3 8Y 2.0 TFSI Starter Motor Engine Petrol 02E911022H

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8K5907357

Audi A4 B8 Headlight Headlamp Range Control Unit Module 8K5907357

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8P0959655C

Audi A3 8P Air Module ECU Sensor Control Unit 8P0959655C

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4G0971845A

Audi A6 C7 Fuse Relay Box Sam Control Module 4G0971845A

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 3G0962243C

Volkswagen Seat Skoda Audi Tailgate Module Controller 3G0962243C

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7M0951253A

Audi VW Volkswagen Seat Relay Unit Module 4 Pins 7M0951253A

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8P4971693AB

Audi A3 8P Door Wiring Harness Loom Cabling Rear Left Right N/O/S 8P4971693AB

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 141951253B

Audi VW Volkswagen Seat Relay Unit Module 4 Pins 141951253B

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8W0959121B

Audi A4 B9 A5 F5 Pressure Sensor Pedestrian Protection System 8W0959121B

€56.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8X0915181

Audi A4 B8 A5 8T TT Mk2 Negative Battery Terminal Cable Lead 8X0915181

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8T0915181

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

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8H0959655E

Audi A4 S4 B7 Cabrio Air Module Control Unit ECU Impact Sensor 8H0959655E

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4H0907357A

Audi A7 4G8 Headlight Head Light Lamp Range Control Unit Module ECU 4H0907357A

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5Q0959655N

Audi A3 8V Air Module Control Sensor SRS System ECU Unit 5Q0959655N

€47.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5Q0959593D

Audi TT FV A3 8V Door Module Control Unit Front Right O/S Side ECU 5Q0959593D

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4F1971035N

Audi A6 C6 Front Driver Side Door Wiring Harness Loom Cable 4F1971035L

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8K0959663B

Audi A5 8T Voltage Converter Stabilizer Control Module Unit ECU 8K0959663B

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8V0971104

Audi A3 S3 8V Sportback Wiring Harness PDC Parking Sensor Rear Bumper 8V0971104

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4E0919887M

Sat Nav Audi S8 D3 A6 C6 DVD Drive Navigation Control Unit 4E0919887M

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4G8959792A

AUDI A7 4G8 Door Control Module Front Right O/S Passenger Side 4G8959792A

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 1K0971228N

Audi A3 VW Golf Caddy Battery Lead Positive Cable Plus Pole Wiring 1K0971228N

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8K0959792R

Audi Q5 8R Door Module Control Unit Front Passenger Side 8K0959792R

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 1K0937124P

Audi A3 S3 8P Engine Bay SAM Relay Fuse Box Module Control Unit ECU 1K0937124P

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8E0971687L

Audi A4 B7 Door Harness Loom Cable Wiring Rear Left Right N/O/S 8E0971687L

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8T0959792G

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

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5N0971235A

Audi A3 8P VW Golf MK6 Battery Negative Earth Cable Harness Wiring 5N0971235A

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8P0035186G

Audi A3 8P Multimedia Radio CD Player Head Unit 8P0035186G

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5M0907357G

Audi Q3 8U Headlight Range Control Unit Module ECU 5M0907357G

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8W0971687AQ

Audi A4 B9 Door Wiring Loom Harness Rear Left Right N/O/S 8W0971687AQ

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8W8959107B

Audi Q5 FY Rear Boot Trunk Lid Tailgate Control Unit Module ECU 8W8959107B

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4H0971104S

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

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8S0907159

Audi TT FV Impact Body Sound Accoustic Control Module ECU 8S0907159

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8K0959793N

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

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8X0959795A

Audi A1 8X Q3 8U Rear Door Module Control Unit ECU 8X0959795A

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8X0907357C

Audi TT 8J Headlight Head Light Lamp Range Control Unit Module ECU 8X0907357C

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 06E971627M

Fuel Injector Wiring Audi S4 B8 A6 A7 C7 4G 3.0 V6 TFSI Wiring Cable 06E971627M

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4F0959792R

Audi A6 C6 Front Door Left N/S Module Unit Control ECU 4F0959792R

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7L0915138C

Audi Q7 4L Battery Mounting Bracket Part Holder 7L0915138C

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8T0959793M

Audi A5 8T Front Door Control Module Left N/S Driver's Side Unit 8T0959793M

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5Q0959592D

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

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4F0910655Q

Audi A6 C6 4F Control Unit Air Module ECU Bosch 4F0959655G

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8R0907468F

Audi A5 8T Diagnostic Interface Gateway Control Module Unit ECU 8R0907468F

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8K0959793A

Audi A5 8T Coupe Driver's Door Module Control Unit 8K0959793A

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4G8959107S

Audi A7 4G8 Sportback Electric Tailgate Bootlid Control Unit Module 4G8959107S

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8W0959592M

Audi A4 B9 A5 F5 Front Door Module Control Unit ECU Passenger Side 8W0959592M

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 03L906022NP-1

Audi A4 B8 2.0 TDI Diesel CAHA 170HP Engine ECU Kit Ignition + Key 03L906022MK

€66.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8J0971237A

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

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8W0959595M

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

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 04L907309AB

Audi Q3 8U 2.0 TDI DFUA 184HP Quattro Engine Control ECU 04L907309AB Automatic

€66.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8V1035035B

Audi A3 S3 Q2 RS3 Multimedia Navigation Card Reader Head Unit 8V1035035B

€560.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 057906051H-3

Audi RSQ3 F3 DPF Differential Pressure Sensor 2.5 TFSI 057906051H 83A131552G

€113.95

Free delivery: Nov 12 – 13

If paid before 14:00

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