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

Halfords 12V Lead Acid Accumulator Battery 95Ah 800A HB019

Product currently unavailable

Part no. 3D0915181C

Volkswagen Phaeton 3D 5.0 V10 Battery Control Module Unit ECU 3D0915181C

Product currently unavailable

Part no. RHD-5G2711113B

Volkswagen Golf MK7 Gear Selector Stick Shifter Knob Manual 5 Speed 5G2711113B

Product currently unavailable

Part no. 7100408-1

BMW G01 LCI 20dX Diesel B47D Engine Control Unit ECU Kit 7100408 Key BDC

Product currently unavailable

Part no. A2059001419

Mercedes W205 GLC X253 Air Conditioning Climat A/C Control Module A2059001419

Product currently unavailable

Part no. 7556880

Engine Wiring BMW Z4 E85 E86 Petrol N52 Loom Harness Module Manual 7556880

Product currently unavailable

Part no. P05064003AH

Chrysler Grand Voyager 6-disc CD Changer Control Unit Module P05064003AH

Product currently unavailable

Part no. 7513983-1

Mini Cooper R50 Engine W10 116HP Engine ECU Kit DME 7513983 EWS Key Automatic

Product currently unavailable

Part no. 1025-27

BMW X3 E83 GPS Navigation Display Screen Android Auto CarPlay 10,25" 1025-27

Product currently unavailable

Part no. 8M5T-19C112-AN

Ford Galaxy Mk2 Bluetooth Electronic Control Module Unit ECU 8M5T-19C112-AN

Product currently unavailable

Part no. A0045459201

Mercedes W204 Fuse Box SAM Relay Control Module A0045459201

Product currently unavailable

Part no. 8676405

BMW F40 F44 F45 F46 Starter Motor 8676405 8580390

Product currently unavailable

Part no. 2Q907561C-1

Volkswagen VW Crafter Front Distance Radar Sensor 2Q907561C

Product currently unavailable

Part no. 6853417

BMW F01 F10 F20 F30 Tow Bar Trailer Towing Control Module Unit AHM 4 6853417

Product currently unavailable

Part no. 9P1919607E

Porsche 718 Boxster 982 Multimedia Sat Navigation Screen Display 9P1919607E

Product currently unavailable

Part no. 5N0959354A

Seat Leon 1P Crash Impact Sensor Front Door Left Right N/O/S 5N0959354A

Product currently unavailable

Part no. 8691827-2

Mini Cooper F56 B38 136HP Petrol Engine ECU Kit DME 8691827 BDC + Key Manual

Product currently unavailable

Part no. EJ32-14369-CC

Range Rover Evoque L538 Front Bumper Wire Parking Sensor Harness EJ3214369CC

Product currently unavailable

Part no. 9470054

BMW F45 G20 G11 G12 G21 G30 G31 High Voltage Battery Box 9470054

Product currently unavailable

Part no. A2129009829

Mercedes W166 IGW MID Gateway Control Module Unit ECU A2129009829

Product currently unavailable

Part no. 8481599

Adblue Module BMW G20 G21 G30 G31 X3 G01 Control Unit ECU SCR 8481599

Product currently unavailable

Part no. 8606776

BMW F20 F21 M135i F30 F31 335i N55 Engine Control Unit ECU 8606776 Automatic

Product currently unavailable

Part no. 4H0907468AF

Audi A8 D4 Central Diagnostic Getaway PKO Control Unit Module ECU 4H0907468AF

Product currently unavailable

Part no. HALFORDS-AGM-70AH

Halfords 12V AGM 096 Start Stop Accumulator Battery 70Ah 720A

Product currently unavailable

Part no. 5A23E92

Telematics Module BMW F40 F44 G20 Telephone Control Unit ATM ECE 4G 5A23E92

Product currently unavailable

Part no. 8645761

BMW F45 F46 F48 Mini F54 F55 F56 F57 B48C Intercooler Charge Air Cooler 8645761

Product currently unavailable

Part no. 7240611

BMW F01 F02 F03 F07 F10 Tailgate Lift Rear Function Module Control Unit 7240611

Product currently unavailable

Part no. 04L903023K

Audi A3 8V Volkswagen Golf Mk7 Alternator Generator 140A 1.6 2.0 TDI 04L903023K

Product currently unavailable

Part no. 9T1T-15K600-ED

Ford Transit Connect Control Unit Central Door Locking Module ECU 9T1T15K600ED

Product currently unavailable

Part no. 7577968-6

BMW E90 Engine Control Unit ECU 330i N52 N52B30A 258HP 3.0 Petrol 7577968 Manual

Product currently unavailable

Part no. 6908948

BMW E39 6-disc CD Changer without Magazine 6908948

Product currently unavailable

Part no. 99661853701

Porsche Boxster 986 Seat Comfort Module Unit Front Left Right N/O/S 99661853701

Product currently unavailable

Part no. 8599277

BMW X3 G01 Fuse Box Trim Cover Panel 8599277

Product currently unavailable

Part no. A2229005210

Mercedes W205 Electric Parking Brake Control Unit Module A2229005210

Product currently unavailable

Part no. 99761817112

Porsche Cayman 987C Immobilizer Alarm Control Module Unit 99761817112

Product currently unavailable

Part no. 7C0971250B

Volkswagen Crafter SY Earth Ground Cable Negative Battery Lead Wiring 7C0971250B

Product currently unavailable

Part no. 9185528

BMW E64 CCC Sat Navigation System CD Player Head Unit 9185528

Product currently unavailable

Part no. A6461506679-2

Mercedes W203 C200 CDI OM646.962 122HP ECU Kit 2 Keys Lock A6461506679 Automatic

Product currently unavailable

Part no. 9357994

BMW F30 F31 F32 Radio Professional CD Bluetooth Player Head Unit 9357994

Product currently unavailable

Part no. 5A7A158

Mini Clubman F54 LCI Head Unit Basic Navigation 2 Radio Player Alpine 5A7A158

Product currently unavailable

Part no. 8T0907560M-1

Audi S5 8T 4.2 FSI CAUA Quattro 354HP Engine ECU Kit Ignition + Key 8T0907560M

Product currently unavailable

Part no. JS7T-14G370-JNA

Ford Ranger Wildtrak Mk6 Sat Nav Radio Control Module APIM JS7T-14G370-JNA

Product currently unavailable

Part no. 4KE035282H

Audi A4 B9 Communication Telematics Control Module Unit ECU 4KE035282H

Product currently unavailable

Part no. 6H22-18C815-AA

Land Rover Discovery 3 L319 Stereo Radio CD Player Head Unit 6H22-18C815-AA

Product currently unavailable

Part no. 4N0907064GP

Audi Q5 FY VW Touareg Body Control Comfort Unit Module BCM ECU 4N0907064GP

Product currently unavailable

Part no. 9345322-1

BMW 5 F13 ECU Body Control Module V2 Junction Box PL6 JBBFE III 9345322

Product currently unavailable

Part no. A2129009622-1

Mercedes W212 Rear SAM Control Unit Module A2129009622

Product currently unavailable

Part no. 7649090-2

Mini F54 F55 F56 F57 F60 Petrol Engine Starter Actuator Motor Lucas LRT00234

Product currently unavailable

Part no. 8473167

BMW F30 F31 F32 LCI 330dX N57N Engine Gearbox Module Wiring Cable Loom 8578498

Product currently unavailable

Part no. 9351679-1

BMW F10 F20 F22 F30 Navigation Sat Nav Head Unit High 9351679

Product currently unavailable

Part no. 8V4T-18C939-LD-1

Ford Kuga MK1 Sony Radio CD Multimedia Player Head Unit 8V4T-18C939-LD

Product currently unavailable

Part no. 6981566

Navigation Head Unit BMW E60 E61 CCC CD Sat Nav Player System Controller 6981566

Product currently unavailable

Part no. 30327N

BMW F20 F21 F30 F34 Diesel Engine Starter Motor 30327N

Product currently unavailable

Part no. 8507924

Gearbox Wiring BMW F20 F30 125d 325d N47S1 Engine Loom Harness Cables 8507924

Product currently unavailable

Part no. A2129008624

Mercedes CLS C218 Radio Head Unit Comand Navi CD Player Control Unit A2129008624

Product currently unavailable

Part no. 6935363

BMW E60 Light Control Unit Module ECU LME6X Delphi 6935363

Product currently unavailable

Part no. 9664843780-2

Citroen C4 Picasso 1.6 HDI 9HT Engine Control Unit ECU EDC 9664843780 Manual

Product currently unavailable

Part no. rhd-A2135407144

Mercedes W213 Front Left N/S Door Electrical Wiring Harness A2135407144

Product currently unavailable

Part no. 1290396

DAF 85CF Cruise Control Module Electrical Relay Actuator Motor Unit 1290396

Product currently unavailable

Part no. 6983334

Mini R50 R53 6-Disc CD Changer Multichanger Without Magazine 6983334

Product currently unavailable

Part no. SP327ZZ

ECS Electronics 12V Trailer Module Control Unit SP327ZZ 5F008V0101

Product currently unavailable

Part no. A2208274642-1

CD Changer Mercedes W203 W209 W220 6 Disc Player With Magazine A2208274642

Product currently unavailable

Part no. A2115403145

Mercedes-Benz E-Class W211 Central Gateway Control Unit Module ECU A2115403145

Product currently unavailable

Part no. 7838929

BMW 3 5 6 Series E60 E63 E90 E92 Crossover Frequency Unit Module Door 7838929

Product currently unavailable

Part no. A9064404941

Mercedes Sprinter W906 Wiring Harness Tailgate License Plate Lamp A9064404941

Product currently unavailable

Part no. 130831040900

Audi A5 8T Headlight Inner LED Inner Module Unit 6NHM0000 130831040900

Product currently unavailable

Part no. 8578945-5

BMW F20 F21 F30 118d 318d N47N 143HP Engine ECU DDE Kit 8578945 Key FEM Lock

Product currently unavailable

Part no. 3454352

Mini Cooper One R56 PL3 SPEG H4 Fuse Distribution Box Unit 3454352

Product currently unavailable

Part no. 1436910

BMW 5 Series E39 Negative Battery Cable Brown 1436910

Product currently unavailable

Part no. Varta Rac 74Ah Accumulator-1

VARTA RAC Accumulator Battery 74Ah 750A 12V RAC002

Product currently unavailable

Part no. 8582886-1

BMW X3 G01 F25 B47 sDrive 160HP Engine Control Unit ECU 8582886 Manual

Product currently unavailable

Part no. 7C0945096J-2

Volkswagen Crafter SY Rear Lamp Tail Light Wiring Harness Right O/S 7C0945096J

Product currently unavailable

Part no. MR587816

Mitsubishi Shogun Front Fuse Box Relay Control Unit Module ECU MR587816

Product currently unavailable

Part no. 80A971687H

Audi Q5 FY Rear Door Wiring Harness Loom Cable Left Right N/O/S 80A971687H

Product currently unavailable

Part no. DV6T-14301-AD

Ford Transit Connect Negative Battery Cable Wiring DV6T-14301-AD

Product currently unavailable

Part no. A1669068601-2

Mercedes ML W166 Rear Tail Lamp Light Wiring Harness Cable Left N/S A1669068601

Product currently unavailable

Part no. A1669068801-2

Mercedes ML W166 Rear Lamp Tailgate Light Wire Connector Right O/S A1669068801

Product currently unavailable

Part no. 8517862-7

BMW F20 F30 F32 120d 320d 420d N47N 184HP ECU Kit DDE 8517862 + Key + FEM Manual

Product currently unavailable

Part no. 9136678

BMW Z4 E89 HiFi Audio System Amplifier Holder Catch Bracket

Product currently unavailable

Part no. 7805585-6

BMW E91 325i M52 218HP Engine Control Unit ECU Kit DDE 7805585 CAS3 Key Manual

Product currently unavailable

Part no. 7533651-2

BMW Z4 Series E85 Roadster 2.2i M54 170HP ECU Kit DME 7533651 EWS3 Key Manual

Product currently unavailable

Part no. 6C11-12A650-AN-1

Ford Transit MK7 2.2 TDCI 85HP Diesel Engine Control ECU 6C1112A650AN Manual

Product currently unavailable

Part no. 6934552

BMW E81 E87 E90 Hands Free Electronics Charging Module MULF 6934552

Product currently unavailable

Part no. 03C906027AR

VW Polo 6R V GTI 1.4 TSI CAVE 180HP Engine Control ECU Kit 03C906027AR Automatic

Product currently unavailable

Part no. Q0010020V001-1

Smart Fortwo C450 Engine Control Unit ECU 0.7 Petrol 61HP Automatic Q0010020V001

Product currently unavailable

Part no. 3D0971095BK

Volkswagen Phaeton 3D GP0 Front Bumper Wiring Loom 3D0971095BK

Product currently unavailable

Part no. A9064400138

Mercedes Sprinter W906 Diesel Radiator Fan Wiring Harness WH1153 A6394406351

Product currently unavailable

Part no. A2215409501

Parking Aid Module Mercedes C216 W221 Parktronic Blind Spot Control A2215409501

Product currently unavailable

Part no. RHD-4G8919604J

Audi A7 4G Head Up Display Screen Projector Dashboard Car System HUD 9442013

Product currently unavailable

Part no. A9075450100-1

Fuse Box Mercedes Sprinter W907 W910 Relay Box Fuse Box Module A9075450100

Product currently unavailable

Part no. 9331825-1

BMW F10 F11 Radio Channel Selector CD Player Insert Switch Panel Control 9331825

Product currently unavailable

Part no. 6C1T14A073CJ

Ford Transit MK7 Fuse Box Body Control Module ECU BCM Unit 6C1T14A073CJ

Product currently unavailable

Part no. 7600020-1

Mini Cooper R56 N12 1.6 120HP ECU Control Unit Kit DME 7600020 CAS3 Key Manual

Product currently unavailable

Part no. YWC500312

Land Rover Discovery 3 L319 Parking Aid Module ECU Control Unit YWC500312

Product currently unavailable

Part no. A2079012500

Air Module Mercedes C204 C207 Sensor Control Unit ECU A2079012500

Product currently unavailable

Part no. 7640755-5

BMW F20 F21 114i N13 102HP Engine ECU Kit DME 7640755 Key + FEM + Lock Manual

Product currently unavailable

Part no. 6779672

BMW E60 M5 E63 M6 E65 EDC-K Control Unit Module ECU Rear Suspension 6779672

Product currently unavailable

Part no. A6421509177

Merceedes W211 E280 CDI OM642.920 Engine Control Unit ECU Kit A6421509177 Key

Product currently unavailable

Part no. A2129006417-1

Mercedes W207 W212 Radio Head Unit CD Player Control Panel Switch A2129006417

Product currently unavailable

...

Showing 18217-18315 of 30469 products