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

Positive Cable Vauxhall Insignia Battery Starter Alternator Plus 13295310

Product currently unavailable

Part no. 8P0919283D

Audi A3 8P PDC Parking Distance Control Sensor Module Unit ECU 8P0919283D

Product currently unavailable

Part no. 3Q0959655AQ

Skoda Octavia 5E Air Module Control Unit ECU Module Sensor 3Q0959655AQ

Product currently unavailable

Part no. 9124632

BMW Z4 E85 Radio Business CD Player Multimedia MMI Head Unit 9124632

Product currently unavailable

Part no. 8200311550

Renault Master 2 G9U 754 2.5 dCi Diesel Engine Unit ECU 8200311550 Manual

Product currently unavailable

Part no. 8W0959592G

Audi A4 B9 Front Door Module Control Unit Passenger Side 8W0959592G

Product currently unavailable

BMW X5 E70 E90 LCI F20 Engine Wiring N55 Valvetronic Servomotor Cable 7592508

-15%

Part no. 7592508

BMW X5 E70 E90 LCI F20 Engine Wiring N55 Valvetronic Servomotor Cable 7592508

Product currently unavailable

Part no. 03L906018DT-1

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

Product currently unavailable

Part no. 3455436

Mini Cooper One R55 R55N LCI High PL SPEG H4 Fuse Distribution Box 3455436

Product currently unavailable

Part no. A2721536979-1

Mercedes W221 S350 M272.965 272HP Engine ECU Kit A2721536979 Ignition + Key

Product currently unavailable

Part no. 8375497

BMW E39 Cruise Control Unit Module 8375497

Product currently unavailable

Part no. 4F0035769B

Audi A6 C6 CD DVD Navigation Sat Nav Head Unit 4F0035769B

Product currently unavailable

Part no. 3D0909601D

Porsche Cayenne 955 9PA Air Module Control Unit ECU SRS 3D0909601D

Product currently unavailable

Part no. 8383149

BMW E46 Radio Business Cassette Player Audio Control Head Unit 8383149

Product currently unavailable

Part no. CK52-12C520-N

Range Rover L405 4.4 SDV8 4x4 340HP Engine Control ECU CK52-12C520-N Automatic

Product currently unavailable

Part no. 4H0919475L

Audi A6 C7 PDC Parking Distance Control Module Unit ECU 4H0919475L

Product currently unavailable

Part no. 8W9971104A

Audi S4 B9 Wiring Loom Set PDC Rear Complete Harness Parking Sensor 8W9971104A

Product currently unavailable

Part no. BJ32-11E001-AD

Land Rover Discovery 4 L319 Family Entertainment Controle Module BJ32-11E001-AD

Product currently unavailable

Part no. A0131540002

Alternator Mercedes W203 Diesel OM648 OM646 Engine ALternator 200A A0131540002

Product currently unavailable

Part no. 8572439-3

Engine Control Unit BMW F30 F31 N57N 330d 258HP ECU DDE 8572439 Automatic

Product currently unavailable

Part no. 7H32-5A482-AB

Range Rover Sport L320 Anti Roll Control Module Unit ARC 7H32-5A482-AB

Product currently unavailable

Part no. A0038212851

Mercedes SLK R171 Crash Sensor Air Bag Impact Module Control Unit A0038212851

Product currently unavailable

Part no. 9114447

BCM Module BMW E60 E63 E64 Body Control Module 6135 9114447

Product currently unavailable

Part no. 8P0971679K

Audi A3 S3 8P Dashboard Glove Box Wiring Loom Cable Harness 8P0971679K

Product currently unavailable

Part no. A6511503233

Engine Wiring Mercedes W204 OM651 Diesel Harness Loom DDE A6511503233

Product currently unavailable

Part no. 4L0035223E

Audi Q7 4L Audi Sound System Amplifier Control Module ECU 4L0035223E

Product currently unavailable

Part no. 8T0907568B

Audi A4 B8 Blind Spot Radar Sensor Control Module Rear Left N/S 8T0907568B

Product currently unavailable

Part no. 6G9T-14D572-LA

Land Rover Freelander 2 Fuse Box Body Control Module ECU BCM Unit 6G9T14D572LA

Product currently unavailable

Part no. 9218086

BMW E81 E87 E90 LCI Top Hifi System Amplifier Logic 7 L7 Harman Becker 9218086

Product currently unavailable

Part no. 9270392-2

BMW F20 F21 F22 Central Information Display Dashboard Screen 6,5" 9270392

Product currently unavailable

Part no. GPLA-14F498-AA

Range Rover Sport L494 Air Conditioning Heater Control Module ECU GPLA-14F498-AA

Product currently unavailable

Part no. A2044400035

Mercedes W204 PDC Sensor Wiring Loom Harness Front Bumper A2044400035

Product currently unavailable

Part no. 6958127

BMW E93 Convertible Hall Sensor Trunk Boot Control Unit Module 6958127

Product currently unavailable

Part no. 9362397

BMW 1 Series F20 Rear Module Fuse Box Power Distribution Control 9362397

Product currently unavailable

Part no. 3450280

Mini Cooper One R56 Footwell Light Module High ECU PL3 FRM II 3450280

Product currently unavailable

Part no. 23710JD78E

Nissan Quashqai M9R Diesel Engine Control ECU Manual Gearbox 23710 JD78E

Product currently unavailable

Part no. 90494959

GM Vauxhall Opel Relay 4-Pin Multi Use Glow Plug Unit Magenta 90494959

Product currently unavailable

Part no. 6802945

BMW G11 G12 G30 Junction Point Power Distribution Unit B+ Rear B48B20A 6802945

Product currently unavailable

Part no. 6G9T14301BK

Ford Mondeo MK4 Negative Battery Terminal Cable Wiring Connecting 6G9T14301BK

Product currently unavailable

Part no. 8577764-4

BMW F10 F11 F20 F30 520d N47N 184HP Engine Control ECU DDE 8577764 Automatic

Product currently unavailable

Part no. 4L0910401T

Audi Q7 4L 3.0 TDI BUG 233HP Engine Contol Unit ECU 4L0910401T Automatic

Product currently unavailable

Part no. 7223190

Rear View Camera BMW F07 GT Trim Panel Cover Boot Lid Tailgate 7223190

Product currently unavailable

Part no. 9177978-1

BMW E82 Coupe ECU Body Control Module Junction Box L1 PL2 JBBFE II 9177978

Product currently unavailable

Part no. 9131766

Seat Wiring Cable BMW E81 E82 E90 E92 Front Right O/S Seat Loom Harness 9131760

Product currently unavailable

Part no. 1K0907115J-1

Volkswagen Golf Mk5 1K V 2.0 TFSI BWA 200HP Engine Unit ECU 1K0907115J Automatic

Product currently unavailable

Part no. 4F0035061D

Audi A4 A5 A6 Q5 Q7 Radio Control Head Unit Harman Becker 4F0035061D

Product currently unavailable

Part no. 7493231

BMW F32 F36 F80 F82 M4 LCI Headlight Indicator Light LED Module Left N/S 7493231

Product currently unavailable

Part no. A0355454232

Mercedes W211 Automatic Gearbox Transmission Module Control Unit ECU A0355454232

Product currently unavailable

Part no. 8513242

BMW F10 F11 520d Diesel N47N 184HP Engine ECU DDE 8513242 Automatic

Product currently unavailable

Part no. DG9T-19H517-AH

Ford Ranger Mk3 T6 Tow Bar Trailer Control Module DG9T-19H517-AH

Product currently unavailable

Part no. 3454607

BMW 3 X3 E46 E83 Body Control Unit Module GM5 Star12 Lin High 12V 3454607

Product currently unavailable

Part no. 8638552

Supply Module BMW F90 M5 F91 M8 G05 G11 G30 Integrated Control Unit 8638552

Product currently unavailable

Part no. AM51-10A659-AB

Ford Focus Mk3 Battery Cover Lid Panel Trim AM51-10A659-AB

Product currently unavailable

Part no. 6985363

BMW E60 E61 E63 E64 Body Gateway Module 61356985363 6985363

Product currently unavailable

Part no. 6960226

Air Bag Module BMW E65 E66 Sensor Rear Seat Airbag Control Unit ECU 6960226

Product currently unavailable

Part no. 6935645

BMW Mini Cooper One R50 R53 Body Control Unit Basic Module BCM 6935645

Product currently unavailable

Part no. 6927274

BMW E60 E61 E65 E66 Seat Module Control Unit ECU Front Left Right N/O/S 6927274

Product currently unavailable

Part no. a2469004716

Radio CD Player Mercedes W176 W246 Audio Navigation Stereo Head Unit A2469004716

Product currently unavailable

Part no. 9894912-4

BMW F30 LCI 320i B48 Engine Control Unit DME ECU Kit FEM + Key 9894912 Automatic

Product currently unavailable

Part no. 1504506

Ford Transit Connect Body Control Module BCM Control Unit ECU 7T1T-14A073-BB

Product currently unavailable

Part no. 6936996

BMW E65 Light Control Unit Headlight Module Lear LM E6X MAN. LWR 6936996

Product currently unavailable

Part no. A1645406501

Mercedes ML W164 Front SAM Control Unit Module ECU A1645406501

Product currently unavailable

Part no. A2661502933

Mercedes A B W169 W245 M266 Petrol Engine Wiring Harness Loom A2661502933

Product currently unavailable

Part no. 6962723

BMW E60 Light Control Unit Module LME6X MAN.LWR Lear 6962723

Product currently unavailable

Part no. 7833284-1

BMW E46 M3 343HP Engine S54 Control Unit Module ECU DME Manual 7833284

Product currently unavailable

Part no. A2118701985

Mercedes W211 Door Module Front Left N/S Control Unit ECU A2118701985

Product currently unavailable

On Board Monitor BMW E60 E63 E90 Dashboard Display Screen 8.8" 9114362

-15%

Part no. 9114362

On Board Monitor BMW E60 E63 E90 Dashboard Display Screen 8.8" 9114362

Product currently unavailable

Part no. 6945898

Seat Occupancy Sensor BMW E87 E90 E91 E92 Co Driver Mat Cable 6945898

Product currently unavailable

Part no. 6982976

BMW E63 E64 Seat Occupancy Sensor Mat Passenger Side Control Unit Module 6982976

Product currently unavailable

Part no. 6987692

BMW E87 E90 Navigation System Professional CCC Navi Controller 6987692

Product currently unavailable

Part no. A4475407880

Mercedes Vito W447 Front Passenger Side Fuse Box Control Unit Module A4475407880

Product currently unavailable

Mercedes-Benz A B W169 W245 Door Cable Harness Wiring Loom Front Left N/S

-5%

Part no. A1695407705

Mercedes-Benz A B W169 W245 Door Cable Harness Wiring Loom Front Left N/S

Product currently unavailable

Part no. 4G0035061B

Audi A5 8T Navigation System Car Sat Nav Computer Head Unit CIC 4G0035061B

Product currently unavailable

Part no. 7588620

BMW E60 E90 325i 525i N53 218HP ECU Engine Control Module DME 7588620 Automatic

Product currently unavailable

Part no. 7L0907553E

Porsche Cayenne 9PA Suspension Control Unit Module 7L0907553E

Product currently unavailable

Part no. 8T0907468L

Audi A4 B8 A5 S5 8T Gateway Control Unit Module ECU 8T0907468L

Product currently unavailable

Part no. 7807828-2

BMW 1 3 Series E87 LCI E90 118d 318d N47 Diesel ECU KIT DDE 7807828 CAS3 + Key

Product currently unavailable

Part no. A2229001614

Module Mercedes C205 Front Door Right O/S Control Module Unit A2229001614

Product currently unavailable

Mercedes W176 W246 Diesel Engine OM651 Wiring Harness Loom Cable A6511502490

-40%

Part no. A6511502490

Mercedes W176 W246 Diesel Engine OM651 Wiring Harness Loom Cable A6511502490

Product currently unavailable

Part no. 7622962-1

BMW F01 F02 F03 N74 760Li 544HP Engine Dual Control ECU Kit 7622962 Automatic

Product currently unavailable

Part no. 03L906018AJ-1

Audi A3 8P 2.0 TDI 170HP CFGB Engine Control Unit ECU Kit 03L906018AJ Manual

Product currently unavailable

Part no. 9226885

BMW F20 F21 Aerial Antenna Amplifier Diversity DAB 9226885

Product currently unavailable

Part no. A4475450069

Mercedes Vito W447 Control Unit Fuse Box Compartment Mount A4475450069

Product currently unavailable

Part no. W176-LT-LINUX-45

Mercedes W176 On-Board Display Screen 12.3" Android Infotainment System

Product currently unavailable

Part no. 02E911023H

Audi A3 Starter Motor Engine Diesel 02E911023H

Product currently unavailable

Part no. 5Q0937084DH-1

Audi A3 8V RSQ3 F3 BCM Body Control Module Unit ECU 5Q0937084DH

Product currently unavailable

Part no. 9649090377

Peugeot 307 Display Screen Dashboard Multifunction Monitor Unit 9649090377

Product currently unavailable

Part no. 7600020-8

Mini One R56 N12 1.4 95HP ECU Kit DME + CAS 3 + 2 Keys 7600020 Manual

Product currently unavailable

Part no. 7527610-3

Mini Cooper R50 W10 90HP Engine ECU Kit DME 7527610 + EWS + Key Automatic

Product currently unavailable

Part no. 9281829

BMW F20 F21 F22 F30 F31 F32 F36 Module Control Unit FEM ECU LR01 9281829

Product currently unavailable

Part no. 9247472-1

BMW E91N LCI ECU Body Control Module Junction Box H2 9247472

Product currently unavailable

Part no. 9271376

MINI Cooper One Clubman R55 LCI Rear Bumper PDC Cables Wiring Loom Set 9271376

Product currently unavailable

Part no. 8510832-2

BMW E90 E91 LCI N47N 318d 143HP Engine ECU Kit DDE 8510832 CAS3 + Key Manual

Product currently unavailable

Part no. A2218702986

Mercedes W221 Seat Control Module SSG Unit Front Left Seat N/S A2218702986

Product currently unavailable

Part no. 3452092-1

Mini Cooper One R55 Footwell Light Module ECU HIGH Lear PL3 FRM II 3452092

Product currently unavailable

Part no. 6R7937087K

Skoda Fabia 5j Body Control Module BCM Unit Power Supply Convenience 6R7937087K

Product currently unavailable

Part no. 6946528

BMW 1 3 X1 Series E81 E87 E90 E91 E92 Ultra Sonic Module Alarm System 6946528

Product currently unavailable

Part no. A1638201589

CD Changer Mercedes ML W163 6 Disc Changer With Magazine A1638201589

Product currently unavailable

Part no. 9676655380

Peugeot 207 Multifunction Display Screen Unit Module Dash Dashboard 9676655380

Product currently unavailable

...

Showing 12574-12672 of 18227 products