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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BMW F20 F21 F30 F31 116d 316d 116HP N47N ECU Kit DDE 8576341 + Key + FEM Manual

€237.95

Free delivery: Jul 30 – Aug 4

If paid before 14:00

Part no. 3417586

Electronic Box BMW X3 E83 LCI 2.5si 3.0si N52N Control Unit Mount Holder 3417586

€23.95

Free delivery: Jul 30 – Aug 4

If paid before 14:00

Part no. 9264917

BMW Z4 E89 Roadster Air Module Control Unit ECU 9264917

€23.95

Free delivery: Jul 30 – Aug 4

If paid before 14:00

Part no. 9366339

BMW G32 GT Door Wiring Harness Loom Cable Rear Left Right N/O/S 9366339

€28.95

Free delivery: Jul 30 – Aug 4

If paid before 14:00

Part no. 2447799

BMW M6 F13 X3 F25 F32 F33 Bluetooth Telematic Control Module Unit 2447799

€113.95

Free delivery: Jul 30 – Aug 4

If paid before 14:00

Part no. 8795109

BMW X3 G01 Rear Bumper PDC Wiring Loom Parking Sensor Cable Harness 8795109

€85.95

Free delivery: Jul 30 – Aug 4

If paid before 14:00

Part no. 8639595

BMW F30 F31 F32 320i 420i N20 ECU Engine Control Unit DME 8639595 Automatic

€322.95

Free delivery: Jul 30 – Aug 4

If paid before 14:00

Part no. 8590102

Alternator Cable BMW 5 G30 G31 G12 B57 Battery Wiring Alternator B+ 8590102

€32.95

Free delivery: Jul 30 – Aug 4

If paid before 14:00

Part no. 9362848-1

Telematics Module BMW F20 F21 F30 F31 Bluetooth Teleservices GPS Unit 9342881

€23.95

Free delivery: Jul 30 – Aug 4

If paid before 14:00

Part no. 7928682

Radio Receiver BMW F40 F44 G20 G26 Radio Remote Control Unit 434 MHZ 7928682

€23.95

Free delivery: Jul 30 – Aug 4

If paid before 14:00

Part no. 6960220

Airbag Module BMW E65 E66 Airbag A-Pillar Sensor Right O/S Control Unit 6960220

€23.95

Free delivery: Jul 30 – Aug 4

If paid before 14:00

Part no. 6834171

BMW G30 G31 Seat Wire Harness Cable Loom Front Left N/S 6834169 6834171

€165.95

Free delivery: Jul 30 – Aug 4

If paid before 14:00

Part no. 9260600

BMW F30 Interior Wiring Harness Cable Loom Plastic Plug Socket Connector 9260600

€23.95

Free delivery: Jul 30 – Aug 4

If paid before 14:00

Part no. 8574100-3

BMW X3 F25 30dX N57N 258HP Engine Control ECU Kit DDE 8574100 Automatic

€218.95

Free delivery: Jul 30 – Aug 4

If paid before 14:00

Part no. 6977066

BMW X5 E70 Door Cable Harness Wiring 6977066 6937277

€23.95

Free delivery: Jul 30 – Aug 4

If paid before 14:00

Part no. 6788716

BMW 7 Series E65 E66 E67 Steering Column Control Unit CIM Module

€23.95

Free delivery: Jul 30 – Aug 4

If paid before 14:00

Part no. 7075947-1

BMW 5 7 Series E60 E61 E65 E66 Front Left Seat Angle Adjustment Drive 7075947

€24.95

Free delivery: Jul 30 – Aug 4

If paid before 14:00

Part no. 9124583-KAS

BMW E87 E90 Front Rear PDC Ultrasonic Parking Sensor Kaschmir Silver A72 9124583

€23.95

Free delivery: Jul 30 – Aug 4

If paid before 14:00

Part no. 7838113

BMW F06 S65 Engine DME Basic Control Module Unit ECU PL6 JBBFE III 7838113

€51.95

Free delivery: Jul 30 – Aug 4

If paid before 14:00

Part no. 6807634

BMW X5 F15 F20 F30 SRS Air Module Bag Control Unit Module ECU 6807634

€28.95

Free delivery: Jul 30 – Aug 4

If paid before 14:00

Part no. 9329703

BMW F20 F21 F30 F31 F32 Rear Body Control Unit Module REM 9329703

€23.95

Free delivery: Jul 30 – Aug 4

If paid before 14:00

Part no. 6926433

BMW 1 3 Series E87 E90 E91 Mini R56 R57 Seat Control Unit Module Heating 6926433

€23.95

Free delivery: Jul 30 – Aug 4

If paid before 14:00

Part no. 8510249

Engine Wiring BMW E90 E91 LCI N47N Loom Harness Cable Automatic Gearbox 8510249

€23.95

Free delivery: Jul 30 – Aug 4

If paid before 14:00

Part no. 8783805

BMW F23 LCI Boot Lid Tailgate Wiring Wire Harness Cable Loom 8784903 8783805

€42.95

Free delivery: Jul 30 – Aug 4

If paid before 14:00

Part no. 9426325

BMW F45 G20 G30 Mini F60 Battery Cell Module Circuit Control Unit 9426325

€56.95

Free delivery: Jul 30 – Aug 4

If paid before 14:00

Part no. 7649131-1

BMW F30 F31 320i N20 184HP ECU Control Unit Kit DDE 7649131 Key FEM Automatic

€417.95

Free delivery: Jul 30 – Aug 4

If paid before 14:00

Part no. 6825519

BMW X2 F39 F45 X1 F48 High Voltage Cable Cover Duct Bracket Channel 6825519

€28.95

Free delivery: Jul 30 – Aug 4

If paid before 14:00

Part no. 35962

BMW X3 Series E53 E83 iPod Interface Retrofit Connection Module 0035962

€23.95

Free delivery: Jul 30 – Aug 4

If paid before 14:00

Part no. 9205480

BMW 1 Series E82 E88 Positive Battery Lead Cable Wiring 9205480

€23.95

Free delivery: Jul 30 – Aug 4

If paid before 14:00

Part no. 6820931

Telematics Module BMW X1 F48 F20 F30 Bluetooth GPS Control Unit ECU 6820931

€28.95

Free delivery: Jul 30 – Aug 4

If paid before 14:00

Part no. 9224866

BMW 1 3 4 Series F20 F21 F30 F31 F32 Power Distribution Fuse Box Front 9224879

€23.95

Free delivery: Jul 30 – Aug 4

If paid before 14:00

Part no. 9367807-1

BMW X5 F15 Battery B+ Positive Terminal Point Engine Compartment 9367807

€23.95

Free delivery: Jul 30 – Aug 4

If paid before 14:00

Part no. 9353217

BMW X6 F16 Antenna Amplifier Aerial Diversity Booster Control Unit 9353217

€47.95

Free delivery: Jul 30 – Aug 4

If paid before 14:00

Part no. 6942990

BMW 5 6 Series E60 E61 E63 E64 Actuator Air Distribution Flap Matrix Heater

€23.95

Free delivery: Jul 30 – Aug 4

If paid before 14:00

Part no. 9261591

BMW F20 F21 F30 PDC Ultrasonic Parking Sensor PDC Front Imperial Blau Blue

€23.95

Free delivery: Jul 30 – Aug 4

If paid before 14:00

Part no. 9188877

BMW F01 F02 F03 F10 F11 Steering Column Adjuster Switch 9188877

€23.95

Free delivery: Jul 30 – Aug 4

If paid before 14:00

Part no. 9330952

BMW F12 F13 Air Control Module Control Unit ACSM4 9330952

€23.95

Free delivery: Jul 30 – Aug 4

If paid before 14:00

Part no. 6862808

BMW F10 F11 F12 X3 F25 Electric Parking Brake Control Unit EMF Module 6862808

€23.95

Free delivery: Jul 30 – Aug 4

If paid before 14:00

Part no. 9351679

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

€142.95

Free delivery: Jul 30 – Aug 4

If paid before 14:00

Part no. 8606306-6

BMW F30 320i N20 184HP ECU Kit Engine Control Unit DME 8606306 Key FEM Automatic

€569.95

Free delivery: Jul 30 – Aug 4

If paid before 14:00

Part no. 9337231

BMW F32 F33 F82 F83 Door Wiring Loom Harness Passenger's Side 9337231

€94.95

Free delivery: Jul 30 – Aug 4

If paid before 14:00

Part no. 6931987

BMW 7 Series E65 E66 E67 Control Unit Voice Input System Module 6931987

€23.95

Free delivery: Jul 30 – Aug 4

If paid before 14:00

Part no. 7805349-1

BMW X3 Series E83 LCI M47N2 2.0d 150HP ECU Kit DDE + EWS4 + Key 7805349 Manual

€313.95

Free delivery: Jul 30 – Aug 4

If paid before 14:00

Part no. 7621168

BMW F20 F21 F30 F31 Earth Cable Battery Engine N47N N13 7621168

€23.95

Free delivery: Jul 30 – Aug 4

If paid before 14:00

Part no. 7789225

BMW E65 E66 730d M57N Diesel Cable Starter-Base B+ 7789225

€28.95

Free delivery: Jul 30 – Aug 4

If paid before 14:00

Part no. 8736083

BMW F98 Battery Lead Pole Negative Cable IBS Sensor 8736083

€23.95

Free delivery: Jul 30 – Aug 4

If paid before 14:00

Part no. 8635808-1

Engine Wiring BMW F20 F30 F31 LCI B38 Loom Module 2 Harness Cable 8635808

€75.95

Free delivery: Jul 30 – Aug 4

If paid before 14:00

Part no. 1742690

BMW E60 E63 E87 E90 Relay Changer Make Contact Salmon Red 1742690

€23.95

Free delivery: Jul 30 – Aug 4

If paid before 14:00

Part no. 6867932

BMW F20 F21 F23 Mini Cooper F55 F56 Control Unit Trailer Tow Hitch 6867932

€56.95

Free delivery: Jul 30 – Aug 4

If paid before 14:00

Part no. 9266838

BMW X3 F15 Can Bus Interface 120Ohm Control Module Unit ECU 9266838

€23.95

Free delivery: Jul 30 – Aug 4

If paid before 14:00

Part no. 7640132-4

BMW F20 F30 Mini F56 Alternator Generator 150A Denso 7640131

€23.95

Free delivery: Jul 30 – Aug 4

If paid before 14:00

Part no. 9343687

BMW F01 LCI F07 F10 F11 F25 Safety Control Unit Air Module Bag ECU 9343687

€42.95

Free delivery: Jul 30 – Aug 4

If paid before 14:00

Part no. 9396830

BMW F06 F12 F13 E63 Antenna Module Multi band Antenna GPS TEL Left N/S 9396830

€23.95

Free delivery: Jul 30 – Aug 4

If paid before 14:00

Part no. 9251984

BMW F10 F11 F20 F21 F30 Control Unit Module Voltage Transformer VSU180 9233143

€23.95

Free delivery: Jul 30 – Aug 4

If paid before 14:00

Part no. 9280912

F10 F11 F20 F21 F30 F31 Front Seat Control Module Unit 9280912

€66.95

Free delivery: Jul 30 – Aug 4

If paid before 14:00

Part no. 9297604

BMW F12 Wire Harness Cable Loom Wiring 9297604 9313752

€42.95

Free delivery: Jul 30 – Aug 4

If paid before 14:00

Part no. 6970675

BMW X5 E70 Front Bumper PDC Wiring Loom Cable Harness 6970675

€56.95

Free delivery: Jul 30 – Aug 4

If paid before 14:00

Part no. 7827899

BMW G20 G21 G60 G61 X2 U10 X1 U11 Charging Charge Cable Hybrid Plug In 7827899

€142.95

Free delivery: Jul 30 – Aug 4

If paid before 14:00

Part no. 9128570

PDC Loom Cables BMW E81 E87N LCI Front Bumper Wiring Set 9128570

€28.95

Free delivery: Jul 30 – Aug 4

If paid before 14:00

Part no. 7618644

BMW Z4 Series E89 Roadster Petrol N20 Cable Alternator-Starter-Base B 7618644

€23.95

Free delivery: Jul 30 – Aug 4

If paid before 14:00

Part no. 9396828

Antenna Module BMW F06 F12 F13 E63 Rear Multi-band Antenna GPS TEL Right 9396828

€28.95

Free delivery: Jul 30 – Aug 4

If paid before 14:00

Part no. 7801711-1

BMW X3 E83 2.0d M47N2 Engine Control Unit Module ECU DDE 7801711 Manual

€227.95

Free delivery: Jul 30 – Aug 4

If paid before 14:00

Part no. 2622610

Bluetooth Module BMW F10 F20 F23 F30 Teleservices GPS Telematics Control 2622610

€32.95

Free delivery: Jul 30 – Aug 4

If paid before 14:00

Part no. 9313636

BMW F30 LCI Cable Harness Loom Front Door Wiring Left N/S 9313636

€23.95

Free delivery: Jul 30 – Aug 4

If paid before 14:00

Part no. 7618677

Battery Lead Cable BMW E81 E84 E87 RR1 RR2 RR3 Negative IBS 7618677

€23.95

Free delivery: Jul 30 – Aug 4

If paid before 14:00

Part no. 6904620

BMW 7 Series E65 E66 Diversity Antenna Tuner Amplifier Wiring 6904620

€23.95

Free delivery: Jul 30 – Aug 4

If paid before 14:00

Part no. 9286365

BMW X1 X2 Series F39 F48 Antenne AM Antenna Amplifier Cable 9286365

€23.95

Free delivery: Jul 30 – Aug 4

If paid before 14:00

Part no. 6964140

BMW 7 Series E65 E66 Control Unit Door Rear Passenger Side 6933264

€23.95

Free delivery: Jul 30 – Aug 4

If paid before 14:00

Part no. 9381086

Amplifier BMW F06 GT F10 F13 F15 Audi Control Unit Active Sound Design 9381086

€47.95

Free delivery: Jul 30 – Aug 4

If paid before 14:00

Part no. 8789891

BMW F87 M2 LCI Electric Front Bumper Wiring Harness PDC Loom Cable 8789891

€113.95

Free delivery: Jul 30 – Aug 4

If paid before 14:00

Part no. 9115107-1

BMW X5 Series E70 E70N LCI Wiring Set Wash Water Container Cable Loom 9115107

€23.95

Free delivery: Jul 30 – Aug 4

If paid before 14:00

Part no. 5A088E6-1

BMW F40 M135i xD B48 306HP Engine Control Unit ECU Kit DME 5A088E6 BDC Key

€731.95

Free delivery: Jul 30 – Aug 4

If paid before 14:00

Part no. 8622032

BMW F20 F21 F30 F31 LCI Control Unit Box Cover Mudguard Flap Cap 8622032

€23.95

Free delivery: Jul 30 – Aug 4

If paid before 14:00

Part no. 6942100

BMW E60 Air Module Control Unit Gateway Sensor B Pillar Right O/S 6942100

€23.95

Free delivery: Jul 30 – Aug 4

If paid before 14:00

Part no. 7800130-1

BMW E46 ECU Engine Control Unit DDM EWS KIT 320Cd M47N 150 HP Diesel 7800130

€132.95

Free delivery: Jul 30 – Aug 4

If paid before 14:00

Part no. 8482940

BMW F30 LCI G11 G30 Battery Cell Supervision Circuit Module Unit 8667593

€32.95

Free delivery: Jul 30 – Aug 4

If paid before 14:00

Part no. 7799180

Alternator BMW E87 E90 E91 E92 Generator Valeo 150A Diesel 7797519 7799180

€47.95

Free delivery: Jul 30 – Aug 4

If paid before 14:00

Part no. 7377846-1

BMW F32 F33 F36 F80 M3 Front Headlight Headlamp Light Wiring Right O/S 7377846

€23.95

Free delivery: Jul 30 – Aug 4

If paid before 14:00

Part no. 6838610

BMW 1 Series F40 Aerial probe AM/FM Antenna 6838610

€23.95

Free delivery: Jul 30 – Aug 4

If paid before 14:00

Part no. 7428361

BMW G11 G20 G21 G30 G31 Charge State Display Indicator Unit LED 7428361

€37.95

Free delivery: Jul 30 – Aug 4

If paid before 14:00

Part no. 5A52C39

BMW X1 X2 Rear Door Wiring Loom Harness Cable Left Right N/O/S 5A52C39

€99.95

Free delivery: Jul 30 – Aug 4

If paid before 14:00

Part no. 9186655

BMW 3 Series E92 Front Right O/S Driver Side Door Wire Wiring Loom 9186655

€23.95

Free delivery: Jul 30 – Aug 4

If paid before 14:00

Part no. 7540203

BMW X5 Series E70 Control Unit DME Module Emergency Release Lock 7582630

€23.95

Free delivery: Jul 30 – Aug 4

If paid before 14:00

Part no. 9154413-1

BMW E93 LCI Convertible GPS Antenna Aerial Unit Module 9154413

€28.95

Free delivery: Jul 30 – Aug 4

If paid before 14:00

Part no. 9393667

BMW F10 LCI Body Control Module ECU Unit JBBFEIII V2 PL6 9393667

€56.95

Free delivery: Jul 30 – Aug 4

If paid before 14:00

Part no. 5A19AC1

BMW X3 G01 G20 G21 G30 G31 Air Module Control Unit 5A19AC1

€56.95

Free delivery: Jul 30 – Aug 4

If paid before 14:00

Part no. 8614276

BMW F20 F21 F30 LCI M140i 340i Alternator Generator 180A BOSCH 8614276

€37.95

Free delivery: Jul 30 – Aug 4

If paid before 14:00

Part no. 9131629

BMW X1 E84 Rear Tailgate Boot Lid Wiring Loom Harness Cable 9131629

€28.95

Free delivery: Jul 30 – Aug 4

If paid before 14:00

Part no. 8518569-5

BMW F20 F21 F30 F31 N47N 118d 318d 143HP Engine Control ECU DDE 8518569 Manual

€80.95

Free delivery: Jul 30 – Aug 4

If paid before 14:00

Part no. 6857208

Parking Distance Assistant BMW 20 F21 F30 F31 F36 Control Unit Module 6857208

€42.95

Free delivery: Jul 30 – Aug 4

If paid before 14:00

Part no. 9374506

Body Control Unit BMW F20 F21 F30 F31 F32 Module REM 9374506

€32.95

Free delivery: Jul 30 – Aug 4

If paid before 14:00

Part no. 9438239

BMW X4M F98 A/C Air Condition Climate Control Unit ECU 9439239

€37.95

Free delivery: Jul 30 – Aug 4

If paid before 14:00

Part no. 9367837

Air Module BMW F45 X1 F48 Mini F54 F55 F56 Air Control Unit ECU 9367837

€170.95

Free delivery: Jul 30 – Aug 4

If paid before 14:00

Part no. 9134669

BMW E93 Convertible Seat Control Unit Module ECU 9134669 FSV 7.10.0

€32.95

Free delivery: Jul 30 – Aug 4

If paid before 14:00

Part no. 6798242

ICM Module BMW F10 F11 Integrated Chassis Management QL ES Control Unit 6798242

€23.95

Free delivery: Jul 30 – Aug 4

If paid before 14:00

Part no. 6928944

BMW X3 Series E83 Battery Positive Cable Fuse Box 61136928944 6928944

€23.95

Free delivery: Jul 30 – Aug 4

If paid before 14:00

Part no. 6990090

BMW E61 E63 E90 E92 F06 Mini R55 R56 Trap Circuit Antenna 6990090

€23.95

Free delivery: Jul 30 – Aug 4

If paid before 14:00

Part no. 9231442

BMW 2 3 4 Series F22 F30 F32 F36 Antenna Suppression Filter Aerial 9231442

€23.95

Free delivery: Jul 30 – Aug 4

If paid before 14:00

Part no. 6812248

BMW X1 F48 Front Door Wiring Loom Harness Cable Driver Side 6812248

€42.95

Free delivery: Jul 30 – Aug 4

If paid before 14:00

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