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

Make

VW Volkswagen Transporter T6 Glow Plug Relay Unit Black 9 Pins 04L907288E

Product currently unavailable

Part no. 7L0971279

Porsche Cayenne 9PA Sensor ABS Wiring Harness Front Left Right N/O/S 7L0971279

Product currently unavailable

Part no. 3Q0035874A

Volkswagen VW Golf Mk7 Infotainment Radio Multimedia Head Unit 3Q0035874A

Product currently unavailable

Part no. 7343914-2

Headlight Plug BMW F10 F11 LCI Xenon LED Lamp Wiring Plug Cable Front 7317134

Product currently unavailable

Part no. 6914666

BMW E65 E66 Front Seat Occupancy Sensor Mat 6914666

Product currently unavailable

Part no. 8W1907064BL

Audi A4 B9 Body Control Module BCM Comfort Control Unit Power Supply 8W1907064BL

Product currently unavailable

Part no. A6461508391-1

Mercedes W639 111CDI OM646 109HP Engine Control ECU Kit A6461508391 Automatic

Product currently unavailable

Part no. KK3T-14D068-JE-1

Ford Transit Mk8 Fuse Box Power Distribution Relay 2.0 Diesel KK3T-14D068-JE

Product currently unavailable

Part no. 9298589

BMW F10 X5 F16 X6 F16 G11 G12 G30 G31 Hands Free Telephone Microphone 9298589

Product currently unavailable

Part no. A2025400231

Mercedes CLK W202 W208 Battery Negative Earth Cable Wiring A2025400231

Product currently unavailable

Part no. 3453736

Mini Cooper R56 SPEG PL3 M2 SPEG Fuse Distribution Box 3453736

Product currently unavailable

Part no. 8636068

Engine Wiring BMW F20 120i F30 320i 330i LCI B48 Cable Loom Harness 8636068

Product currently unavailable

Part no. 42024550

Mercedes W176 W246 C117 Starter Motor Herth+Buss Diesel Engine OM651 42024550

Product currently unavailable

Part no. 7N0035454A

VW Volkswagen Sharan Front Door Left Right N/O/S Speaker Loudspeaker 7N0035454A

Product currently unavailable

Part no. A0051512901

Mercedes ML W163 Engine Starter Motor A0051512901

Product currently unavailable

Part no. 9248565

Seat Module BMW F10 F11 Front Left N/S Control Unit SM MF/M - HL 9248565

Product currently unavailable

Part no. 8519663-7

Mini Cooper SD R55 R56 LCI R60 N47N Diesel Engine ECU Kit DDE CAS 3 Key 8519663

Product currently unavailable

Part no. A2469013702

Display Screen Mercedes W176 W246 Radio Navigation Sat Nav Head Unit A2469013702

Product currently unavailable

Part no. 4H0907508

Audi RS6 C7 Acceleration Engine Sensor Module Control Unit ECU 4H0907508

Product currently unavailable

Part no. A2125406105

Mercedes W212 Rear LED Wiring Cable Harness Loom A2125406105

Product currently unavailable

Part no. A2035454501

Mercedes W203 Fuse Box SAM Control Unit Module Relay A2035454501

Product currently unavailable

Part no. VP7EKX-13K198-AB

Ford Fiesta MK7 Front Headlight Adjustment Motor Range Control VP7EKX-13K198-AB

Product currently unavailable

Part no. 8XA971085C

Audi A1 S1 8X Rear Bumper PDC Parking Sensor Wiring Harness Loom 8XA971085C

Product currently unavailable

Part no. 9178898

BMW 1 3 5 Series E87 LCI E90 E60 Hands Free Bluetooth Module High MULF2 9178898

Product currently unavailable

Part no. 7P6919475D

VW Volkswagen Touareg 7P PDC Parking Distance Control Module Unit 7P6919475D

Product currently unavailable

Part no. 4N0907063KE

Audi Q7 4M Body Control Comfort Unit Module BCM Convenience Unit ECU 4N0907063KE

Product currently unavailable

Part no. 9289583-1

BMW X1 E84 Display Screen Dashboard Navigation Monitor On-Board CID 6,5" 9289583

Product currently unavailable

Part no. A1695408033

Mercedes-Benz A W169 Front Driver's Side Door Wiring Loom Harness A1695408033

Product currently unavailable

Part no. 7848467

Engine Wiring BMW F80 M3 F82 F83 M4 S55 Loom Module Harness Cable 7848467

Product currently unavailable

Part no. A4479009609

Mercedes Vito W447 Fuse Box Relay Control Unit Electric Module SAM A4479009609

Product currently unavailable

Part no. 7811700-4

BMW E81 E87 LCI E90 120d 320d N47 177HP ECU KIT DDE 7811700 CAS3 Keys Automatic

Product currently unavailable

Part no. 98053736XT00

Citroen Berlingo Peugeot Partner CD Player Radio Stereo Head Unit 98053736XT00

Product currently unavailable

Part no. 9835622

BMW X4 F98 G02 Active Sound Design Module Control Unit Harman Kardon 9835622

Product currently unavailable

Part no. H1BT-14D068-BG

Ford Fiesta Mk8 Fuse Relay Box Under Bonnet 1.0 1.5 Petrol H1BT-14D068-BG

Product currently unavailable

Part no. 5F0971095E

Seat Leon Cupra 5F Front Bumper PDC Wiring Harness Cable 5F0971095E

Product currently unavailable

Part no. 6906347

BMW X5 Series E53 Rear Bumper PDC Cables Set Wiring Loom Harness 6906347

Product currently unavailable

Part no. 3455539-2

Mini Cooper R55 R56 R57 2 Radio Boost CD Audio Player Head Unit 3455539

Product currently unavailable

Part no. 9166706

BMW 1 Series E87N LCI Light Module LOW LCM Footwell Module PL2 FRM II 9166706

Product currently unavailable

Part no. 03N906249L

VW Volkswagen Crafter Sy Cooling System Coolant Control Unit Module 03N906249L

Product currently unavailable

Part no. 5N0035342F

VW Volskwagen Polo 6R Multimedia Electronic Control Interface Module 5N0035342F

Product currently unavailable

Part no. A6229060100

Mercedes Vito W447 Alternator Generator 185A 1.7 CDI OM622 A6229060100

Product currently unavailable

Part no. 7590857-1

Mini Cooper S JCW R56 N14 1.6 211HP ECU Kit DME CAS3 Key 7590857 Manual

Product currently unavailable

Part no. 6948336

BMW 3 Series E90 E91 E92 E93 Negative Battery Cable Minus Pole IBS 6948336

Product currently unavailable

Part no. 4FO903291

Audi A6 C6 2.0 TDI Relay Condenser 4FO903291

Product currently unavailable

Part no. 8515900-1

Engine Starter Motor BMW X5 E70 LCI F01 N57 Diesel Starter Actuator 8515900

Product currently unavailable

Part no. 9118730

BMW 5 6 Series E60 E61 E63 Body Gateway Module KGM LOW LEAR 61359118730 9118730

Product currently unavailable

Part no. 07Z903021F

Volkswagen Phaeton 3D Engine Alternator Generator 14V 190A 5.0 Diesel 07Z903021F

Product currently unavailable

Part no. 8P0907063N

Audi A3 8P Body Control Comfort Unit Module BCM Unit ECU 8P0907063N

Product currently unavailable

Part no. 9286887

BMW X1 E84 Max Brose Footwell Light Module Control Unit ECU Lear FRM PL2 9286887

Product currently unavailable

Part no. 8506951-2

BMW E60 LCI E90 325d 525d M57N2 ECU Kit Basic Control Unit DDE 8506951 CAS3 Key

Product currently unavailable

Part no. 9352865

BMW F20 F21 F22 F30 F32 Front Electronic Module Control Unit FEM 9352865 Manual

Product currently unavailable

Part no. 5Q0959593F-1

Volkswagen Golf Mk7 Front Door Module ECU Control Unit Driver's Side 5Q0959593F

Product currently unavailable

Part no. 03G906018DN-3

Audi A3 8P 2.0 TDI 170HP BMN Engine Control Module ECU Kit 03G906018DN Manual

Product currently unavailable

Part no. 9144773

BMW 1 3 Series E87 LCI E90 E91 E92 Radio CD Professional 9144773

Product currently unavailable

Part no. 4G5907468H

Audi A6 C7 A7 4G Gateway Interface Electrical Control Unit Module ECU 4G5907468H

Product currently unavailable

Part no. 9240988

BMW F10 F11 F30 F32 F33 Side Surround View Camera Control Unit Module 9240988

Product currently unavailable

Part no. 7594483-3

BMW E90 E91 E92 N52 218HP Engine ECU DME Kit 7594483 Automatic

Product currently unavailable

Part no. A2035454101

Mercedes W203 Front SAM Control Unit Module Fuse Box A2035454101

Product currently unavailable

Part no. A0035455005

Mercedes W202 W210 Kick Down Kickdown Relay Electrical Module Unit A0035455005

Product currently unavailable

Part no. 8638198-9

BMW F20 F30 116i 316i N13 136HP Engine Control Unit ECU DME 8638198 Automatic

Product currently unavailable

Part no. JK2T18K810LB

Ford Transit Mk8 Radio Stereo Multi Media Sat Nav Head Unit JK2T18K810LB

Product currently unavailable

Part no. 6975013

BMW E90 Radio CD Player Professional 6975013

Product currently unavailable

Part no. A1685401130

Mercedes-Benz A W168 CDI Battery Terminal Positive Cable Wiring A1685401130

Product currently unavailable

Part no. 1729981

BMW 5 7 X5 Series E34 E38 E39 E53 Petrol Starter Motor 1729981

Product currently unavailable

Part no. 6976154

BMW 5 6 Series E60 E61 E63 Passenger Side Door Airbag Control Module 6976154

Product currently unavailable

Part no. A2048204697-1

Mercedes W204 Dashboard Navigation Central Display Screen Monitor A2048204697

Product currently unavailable

Part no. 7796637

BMW 5 E60 E61 530d M57N 218HP ECU Control Unit DDE 7796637 Module Automatic

Product currently unavailable

Part no. A0165459632

Mercedes C140 W202 Engine Cooling Radiator Fan Control Unit Module A0165459632

Product currently unavailable

Part no. A1405403481

Parktronic Mercedes Sprinter W901 W903 Front Bumper PDC Wiring Loom Harness

Product currently unavailable

Part no. 9172415

Mini Clubman R55 Rear Right O/S Wiring Loom Cable Harness Set 9172415

Product currently unavailable

Part no. 9131852-1

BMW E46 E53 Mini R50 R53 6-Disc CD Changer Multichanger Without Magazine 9131852

Product currently unavailable

Part no. 6C1T-10300-CC-1

Ford Transit Mk7 Diesel Engine Alternator Generator Unit 6C1T-10300-CC

Product currently unavailable

Part no. 1K0953549CA

VW Golf 5 Steering Angle Steering Wheel Column Control Module 1K0953549CA

Product currently unavailable

Part no. 8518268-4

BMW E90 E91 LCI 318d Diesel 143HP N47N ECU Kit DDE 8518268 + CAS3 + Key Manual

Product currently unavailable

Part no. 117103585R

Renault Master III DCI Alternator Support Bracket Mount 117103585R

Product currently unavailable

Part no. 8519663-9

Mini One D R56 LCI N47N 90HP Diesel Engine ECU Kit DDE 8519663 + CAS3 + Key

Product currently unavailable

Part no. A1669008512

Mercedes GLE 250 AM Tailgate Trunk Control Module Unit A1669008512

Product currently unavailable

Part no. 8586168

Engine Wiring BMW F20 F21 F30 120dX 320dX N47N Loom Harness Cable Module 8586168

Product currently unavailable

Part no. 9249086-2

BMW E89 Max Brose Footwell Light Module Control Unit ECU FRM3R 9249086

Product currently unavailable

Part no. 80A907217A

Audi Q5 FY Front Windscreen Windshield Lane Assist Camera 80A907217A

Product currently unavailable

Part no. 6989080-OLI

BMW E65 E66 E67 PDC Rear Parking Sensor Ultrasonic Olivin Metallic

Product currently unavailable

Part no. 7P1907401

Volkswagen Touareg 7L 3.0 TDI CVVA 262HP Engine Control ECU 7P1907401 Automatic

Product currently unavailable

Part no. 8K0915181N

Audi A1 8X Negative Battery Terminal Cable Wiring 8K0915181N

Product currently unavailable

Part no. EB3T-14F642-AE

Ford Ranger Mk1 TKE Smart Data Link OBD Module Control Unit EB3T-14F642-AE

Product currently unavailable

Part no. A2124401851

Mercedes W212 Door Wiring Loom Cable Rear Left Right N/O/S A2124401851

Product currently unavailable

Part no. 8K0907064KG

Audi Q5 8R Body Control Module ECU Control Unit 8K0907064KG

Product currently unavailable

Part no. 6857124

Crash Module BMW F01 F02 LCI F10 F11 F13 ICM Control Unit ECU 6857124

Product currently unavailable

Part no. K1BT-18B955-FD-1

Ford Transit Custom Mk8 Dashboard Display Screen Touchscreen K1BT-18B955-FD

Product currently unavailable

Part no. 8E0909518AQ-1

Audi A4 B7 1.8T BZB 163HP Engine Control Unit Module ECU Set 8E0909518AQ

Product currently unavailable

Part no. A6229000400

Mercedes W447 Fan Control Relay Control Module Unit A6229000400

Product currently unavailable

Part no. 8C1T-18C815-AE

Ford Transit Mk7 Radio CD Player 6000 CD Stereo Audio System 8C1T-18C815-AE

Product currently unavailable

Part no. 070906016EC

VW Volkswagen Transporter 2.5 TDI BNZ Engine 130HP Control Unit ECU 070906016EC

Product currently unavailable

Part no. AC1T-9K499-FCA

Ford Transit Mk7 Fuse Box Loom Wiring Harness Under Bonnet Unit AC1T-9K499-FCA

Product currently unavailable

Part no. 8W1907063CG

Audi A4 B9 A5 F5 Q5 FY BCM Body Control Module On Board Supply ECU 8W1907063CG

Product currently unavailable

Part no. 9211494

BMW E88 Cabrio Convertible Folding Top Roof ECU Module CVM6 9211494

Product currently unavailable

Part no. 9187108

BMW E81 E82 E87 E88 E89 E90 E91 E92 Radio Professional Autoradio CD 9187108

Product currently unavailable

Part no. A2118701310

Mercedes W221 Hood Bonnet Light Solar Sensor Module Unit A2118701310

Product currently unavailable

Part no. 4E0035729

Audi A6 C6 Bluetooth Interface MMI Multimedia Control Module ECU Unit 4E0035729

Product currently unavailable

Part no. 7N0959107G-1

Seat Alhambra 7N VW Sharan 7N Tailgate Trunk Boot Lid ECU Control 7N0959107G

Product currently unavailable

...

Showing 18019-18117 of 18495 products