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 Q7 4L Power Distribution Box Control Unit Plus Housing Cover 7L0937401B

Product currently unavailable

Part no. 04L906021BQ

Audi A4 B8 Engine Control Unit Module ECU 2.0 TDI CNHC 163HP 04L906021BQ

Product currently unavailable

Part no. 4F0919603

Audi A6 C6 Display Screen Multimedia Navigation Dashboard Unit 4F0919603

Product currently unavailable

Part no. 8X0035182K

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

Product currently unavailable

Part no. 4F0035541N

Audi A4 B8 Becker K-Box Radio Receiver Module Control Unit ECU 4F0035541N

Product currently unavailable

Part no. 5QA919283E

Audi A3 8V Park Parking Assist PDC Distance Control Unit Module 5QA919283E

Product currently unavailable

Part no. 6R0971349BK

Audi A1 8X 1.4 TFSI CAXA Alternator Wiring Harness Cable Loom 6R0971349BK

Product currently unavailable

Part no. 4G0907468AC

Audi A6 C7 Central Gateway Control Unit Module Relay ECU 4G0907468AC

Product currently unavailable

Part no. 03G903016A

Audi A6 C6 2.0 TDI Alternator Generator 180A 14V 03G903016A

Product currently unavailable

Part no. 8K1907401K

Audi A4 B8 8K A5 8T 2.7 TDI 190HP CGKA Engine Control ECU 8K1907401K Automatic

Product currently unavailable

Part no. 5Q0959393B

Audi A3 8V Front Door Control Module Unit Right O/S 5Q0959393B

Product currently unavailable

Part no. 8K0907383E

Audi A5 8T Towbar Trailer Hitch Control Module Unit ECU HELLA 8K0907383B

Product currently unavailable

Part no. 5Q0915181J

Audi Q2 GA Negative Terminal HV Battery Cable Lead Ground Clamp 5Q0915181J

Product currently unavailable

Part no. 4E0862336MX

Audi S4 B8 Bluetooth Telephone Control Module ECU 4E0910336MX 4E0862335

Product currently unavailable

Part no. 7P0927601A

Audi Q7 4L Volkswagen Touareg 7P Oil Pump Control Module Unit ECU 7P0927601A

Product currently unavailable

Part no. 5Q0959655N

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

Product currently unavailable

Part no. 04L907309AB-6

Volkswagen Caddy 2K 2.0 TDI DFSD 102HP Engine Control ECU 04L907309AB Manual

Product currently unavailable

Part no. 5Q0959655P

Audi TT FV Air Module ECU Control Unit Crash Sensor 5Q0959655P

Product currently unavailable

Part no. 8U0035192E

Audi Q3 8U Multimedia MMI Radio CD Sat Nav Head Unit Module ECU 8U0035192E

Product currently unavailable

Part no. 8R0959655G

Audi Q5 8R Air Module Control Unit SRS System ECU 8R0959655G

Product currently unavailable

Part no. 8J0035223D

Audi TT 8J Audio Amplifier Radio Sound BOSE Unit 8J0035223D

Product currently unavailable

Part no. 4E0035785D-1

Audi A4 B8 A5 8T MMI Multimedia Interface Control Unit Module 4E0035785D

Product currently unavailable

Part no. 4F0919603B

Audi A6 C6 Display Screen Multimedia Navigation Dashboard Unit 4F0919603B

Product currently unavailable

Part no. 8K0907568H

Audi A5 8T Module Lane Assist Control Unit Rear Left N/S 8K0907568H

Product currently unavailable

Part no. 4H0959107AB

Audi A8L 4H Tailgate Lift Boot Lid Control Unit Module Trunk 4H0959107AB

Product currently unavailable

Part no. 8W5035035B

Radio CD Player Audi A4 B9 A5 F5 Q5 FY Stereo Sat Nav Head Unit 8W5035035B

Product currently unavailable

Part no. 8P4971687T

Audi A3 8P Wiring Loom Cable Harness Door Rear Left Right N/O/S 8P4971687T

Product currently unavailable

Part no. 8V0857273P-1

Audi A3 8V Multimedia Display Screen Radio Sat Nav Head Unit 8V0857273P

Product currently unavailable

Part no. 4G2907401B

Audi A7 4G Engine Control ECU 3.0 TDI Quattro 321HP CVUA 4G2907401B Automatic

Product currently unavailable

Part no. 4L0907468B

Audi Q7 4L Gateway Module Central Control Unit 4L0907468B

Product currently unavailable

Part no. 8T0035223S

Audi A5 8T Audio Amplifier Sound Booster Control Unit Module Unit 8T0035223S

Product currently unavailable

Part no. 09D927750FK

Audi Q7 4L Automatic Gearbox Transmission Control Module Unit 09D927750FK

Product currently unavailable

Part no. 8K0919475F

Audi A4 B8 PDC Assistance Parking Distance Control Module Unit ECU 8K0919475F

Product currently unavailable

Part no. 02Z911023R

Audi A3 8P VW Golf 5k Starter Motor 1.4 TFSI CAXC Petrol 02Z911023R 0001142003

Product currently unavailable

Part no. 8H0035225R

Audi A4 B7 Aerial Antenna Amplifier Module 8H0035225R

Product currently unavailable

Part no. 3AA962243H

Volkswagen VW Audi Tailgate Opening Boot Control Unit Module 3AA962243H

Product currently unavailable

Part no. 8K0971030M

Audi A4 B8 Door Wiring Harness Loom Front Left N/S Cabling 8K0971030M

Product currently unavailable

Part no. 4G0035502

Audi A7 4G8 Telephone Coupling Reception Antenna Amplifier 4G0035502

Product currently unavailable

Part no. 4G0909144Q

Audi A6 C7 Allroad Electric Power Steering Rack Motor Module Unit 4G0909144Q

Product currently unavailable

Part no. 8H0035225L

Audi A4 B7 Cabrio Aerial Antenna Amplifier Module Unit Right O/S 8H0035225L

Product currently unavailable

Part no. 80A915459

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

Product currently unavailable

Part no. 8E0959433CR

Audi A4 B7 Body Comfort Control BCM Supply Module Unit ECU 8E0959433CQ

Product currently unavailable

Part no. 8K2907115S-1

Audi A4 B8 8K A5 8T 2.0 TFSI CDNB 180HP Engine Control ECU 8K2907115S Manual

Product currently unavailable

Part no. A4E0907280A

Audi A8 D3 On Board Power Supply Control Module ECU A4E0907280A

Product currently unavailable

Part no. 8K5907401A-2

Audi A5 8T 3.0 TDI CDUC 245HP Engine ECU Kit BCM + Key 8K5907401A Automatic

Product currently unavailable

Part no. 04L907309A-1

Audi A3 8V 2.0 TDI CRLB 150HP Engine ECU Kit Ignition + 2 Keys 04L907309A Manual

Product currently unavailable

Part no. 5Q0906121D

Audi Q3 8U 2.0 TDI CFGC Fuel Sender Pump Control Module Unit ECU 5Q0906121D

Product currently unavailable

Part no. 5WA035284E

Audi Q3 F3 Online Connectivity Control Module ECU 5WA035284E

Product currently unavailable

Part no. 8K0907801L

Audi S5 8T Parking Electric Brake Handbrake Module Control Unit 8K0907801L

Product currently unavailable

Part no. 8K0959795B

Audi Q7 4L Door Control Module Unit ECU Rear Left Right N/O/S 8K0959795B

Product currently unavailable

Part no. 8N7907953

Audi TT 8N Wind Brake Relay Unit Module 8N7907953

Product currently unavailable

Part no. 8K0955559D

Audi A6 C6 Front Windscreen Rain Light Solar Sensor Unit 8K0955559D

Product currently unavailable

Part no. 8T0907441B

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

Product currently unavailable

Part no. 8H0035225S

Audi A4 B7 Aerial Antenna Amplifier Module Left N/S 8H0035225S

Product currently unavailable

Part no. 4L0035670

Audi Q7 4L Multimedia Stereo Sat Nav SD CD Player Radio Head Unit 4L0035670

Product currently unavailable

Part no. 4G1035502

Audi A6 C7 A7 4G Wireless Induction Charing Station 4G1035502

Product currently unavailable

Part no. 4G0035061S

Audi A5 8T MMI Multimedia Navigation Radio Control Head Unit 4G0035061S

Product currently unavailable

Part no. 81A035192A-1

Audi A3 8V Q2 GA MMI Head Unit Sat Nav Multimedia CD Player 81A035192A

Product currently unavailable

Part no. 8W0970599

Audi A4 B9 Q6 FY Glow Plug Control Relay 2.0 TDI Diesel 8W0907599

Product currently unavailable

Part no. 1J0971839A

Audi A3 8L TT 8N Engine Bay Wiring Harness Loom Cable Guide Holder 1J0971839A

Product currently unavailable

Part no. 1S0919275D-IWH

Audi A7 4G PDC Parking Distance Control Sensor Set x4 1S0919275D Ibis White Y9C

Product currently unavailable

Part no. 8E5035225D

Audi A4 B7 Window Antenna Amplifier Module 8E5035225D

Product currently unavailable

Part no. 4L0910553H

Audi Q7 4L Air Suspension Module Regulation Control Unit 4L0910553H

Product currently unavailable

Part no. 8N8962267E

Audi TT 8N Body Comfort Convenience Module Unit CCM ECU 8N8962267E

Product currently unavailable

Part no. 8T0959793M

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

Product currently unavailable

Part no. 8S0035072A

Audi TT FV Dashboard Sat Nav Drive Unit MMI Multimedia Infortaiment 8S0035072A

Product currently unavailable

Part no. 06E971627Q

Fuel Injector Wiring Audi S4 B8 A6 A7 C7 4G 3.0 V6 TFSI Wiring Cable 06E971627Q

Product currently unavailable

Part no. 4H0971095AS

Audi A8 D4 Front Bumper Parking Sensor PDC Wiring Loom Harness 4H0971095AS

Product currently unavailable

Part no. 8W0941824AP

Audi A4 B9 A5 F5 Positive Battery Distribution Terminal Fuse Box 8W0941824AP

Product currently unavailable

Part no. 4G0035083

Stereo DAB Radio Audi A4 B8 Q5 8R CD Player Radio Receiver Head Unit 4G0035083

Product currently unavailable

Part no. 06K907425B-23

Audi S3 8V 2.0 TFSI 300HP CJXC Quattro Engine Control ECU 06K907425B Manual

Product currently unavailable

Part no. 4L2035670J

Audi Q7 4L Head Unit Radio Player Navigation Control Module Alpine 4L2035670J

Product currently unavailable

Part no. 8T0907115A

Audi A5 8T 1.8 TFSI CABD 170HP Engine Control Unit ECU 8T0907115A Manual Gearbox

Product currently unavailable

Part no. 4H0907064FN

Audi A6 C7 Gateway Convenience Module Unit Body Control ECU 4H0907064FN

Product currently unavailable

Part no. 8T0035462-1

Audi A5 8T MMI Multimedia Interface Unit Module Control ECU 8T0035462

Product currently unavailable

Part no. 8E0035192T-1

Audi A4 B7 Sat Navi Stereo Radio Audio Head Unit CD Player 8E0035192T

Product currently unavailable

Part no. 8V4971035A

Audi A3 8V Front Door Wiring Loom Harness Cable Driver Side 8V4971035A

Product currently unavailable

Part no. 8K0971228P

Audi A4 B8 Starter Alternator Wiring Loom Cable Harness 8K0971228F

Product currently unavailable

Part no. 8V4971030

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

Product currently unavailable

Part no. 03L906022NP

Audi A4 B8 A5 8T 2.0 TDI CAHA 170HP Diesel Engine Control ECU 03L906022NP Manual

Product currently unavailable

Part no. 8W0035192C

Audi A4 B9 A5 F5 Q5 FY MMI Multimedia Player Head Unit SAT NAV CD SD 8W0035192C

Product currently unavailable

Part no. 4H0035670P

Audi A8 S8 4H A8 D4 MMI Control Unit Player MMI 3G+ SAT NAV Bluetooth 4H0035670P

Product currently unavailable

Part no. 8J0971030AE

Audi TT 8J Front Left N/S Door Wiring Harness Cable Lom 8J0971030AE 8J0971030AB

Product currently unavailable

Part no. 8T0959792J

Audi A5 S5 8T Door Module Control Unit Front Passenger Side 8T0959792J

Product currently unavailable

Part no. 81A035466B

Audi A3 8V Bang Olufsen Audio AMP Amplifier Module Control Unit ECU 81A035466B

Product currently unavailable

Part no. 8K0907801C

Audi A5 8T Parking Brake Handbrake Module Control Unit 8K0907801C

Product currently unavailable

Part no. 03L906022JM-1

Audi A4 B8 2.0 TDI 143HP CAGA Diesel Engine Control Unit ECU Kit 03L906022JM

Product currently unavailable

Part no. 03L906018DT

Audi TT 8J 2.0 TDI 170HP CFGB Quattro Engine ECU Unit 03L906018DT Manual

Product currently unavailable

Part no. 8K0927155AA

Audi A5 8T 2.0 TFSI CDNB Automatic Gearbox Module Control Unit 8K0927155AA

Product currently unavailable

Part no. 4G0907107E

Audi A6 C7 A7 4G Image Processing Control Unit Module 4G0907107E

Product currently unavailable

Part no. 8T0907559E-1

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

Product currently unavailable

Part no. 06E971821

Audi A4 B7 Ignition Wiring Harness Guide Trim 3.2 FSI AUK 06E971821 06E971822

Product currently unavailable

Part no. 4N1907468AB

Audi A6 C8 Gateway Module Diagnosis Interface Control Unit 4N1907468AB

Product currently unavailable

Part no. 4H0035225L

Audi A8 D4 4H Aerial Antenna Amplifier AMP Booster Module 4H0035225L

Product currently unavailable

Part no. 4G8959793H

Audi A7 4G Front Door Module Driver's Side Control Unit ECU 4G8959793H

Product currently unavailable

Part no. 7L0937503D-2

Audi Q7 4L Fuse Box Relay Control Unit Module Wiring Cable 7L0937503D

Product currently unavailable

Part no. 8P7907115L-2

Audi A3 8P 1.8 TFSI CDAA 160HP Engine Module ECU Kit 8P7907115L Manual

Product currently unavailable

Part no. 057906051H-2

Audi RSQ3 F3 DPF Differential Pressure Sensor 2.5 TFSI 057906051H 83A131552F

Product currently unavailable

Part no. 04L907309AB

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

Product currently unavailable

...

Showing 2080-2178 of 3357 products