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 X3 F25 Central Gateway Module Control Unit Lear ZGW-02 4SK 9380334

€42.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 5A20559

BMW F40 F44 Transmission EGS Control Module Unit ECU 5A20559

€203.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 7857551

Battery Cable BMW F80 M3 F82 M4 Wire Lead Positive Alternator Starter B+ 7857551

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6799083

Control Unit BMW F10 F11 X3 F25 Parking Brake Handbrake Module EMF 6799083

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8513249-1

BMW X3 F25 Engine ECU Kit DDE CAS4 N47N 20dX 184HP Manual 8513249 Keys + Lock

€284.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 7621063

BMW X3 F25 X4 F26 Earth Ground Cable Line Strap Battery Lead 7621063

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 7953081

BMW X1 U11 Battery Cable Negative Terminal PHEV Earth Cable Wiring PHEV 7953081

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9891438

BMW G20 G21 Door Interior LED Module Connector Light Rear Front 9891438

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9298947-2

BMW Z4 E89 Body Control Module ECU Junction Box PL2RR JBBFE 9298947

€42.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8379766

BMW E65 E90 E91 E92 E93 Auto Boot Release Switch Tailgate 8379766

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9361601

BMW Active Tourer F45 Door Wiring Loom Harness Cable Rear Right O/S 9361577

€32.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9227752

BMW F20 F21 F22 F23 F30 F80 M3 F82 F36 Distributor B Multifuse 9227752

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6927705

BMW 5 Series E60 E60N E61 E61N Battery lead positive underfloor 80 MM² AL petro

€66.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6945147

BMW 5 6 Series E60 E61 E63 Passenger Door Airbag Control Module 6945147

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9216286

BMW F20 F21 Socket Plug Wiring Loom Cable 9216286

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8634244

Engine Wiring BMW F45 Mini F60 B38 Loom Harness Injection Valve Ignition 8634244

€28.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9190110

BMW Z4 E89 Battery B+ Engine Compartment Terminal Point 9190110

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9263944

BMW X5 E70 X6 E71 CIC MID CD Player Audio System 9263944

€189.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 7253188

BMW E92 Sport Seat Left Right Thigh Support Heated Cover Trim Leather Dakota

€42.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8584817

BMW G20 G21 G01 G02 Wiring Harness Engine Glow Plug Module 8584817

€28.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 3412574

BMW X3 Series E83 Rear Left Right Door N/O/S Wiring Loom Cables 3412574

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9260902

BMW E81 E82 Driver's Door Wiring Loom Harness Cables 9260902

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9389310

BMW F45 Door Wiring Front Driver's Door Loom Cable Wiring Harness 9389310

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9203304

BMW X5 Series E70 Cable Loom Door Rear Left Right N/O/S Wiring Harness 9207857

€32.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9145172

BMW E90 E91 E92 E93 LCI Battery Bracket Lower Section Box 9145172

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9157156

Body Gateway Module BMW E60 E61 LCI E63 E64 ECU Control Unit 9157156

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9199996

Holder BMW F13 TV Video Switch Control Module Unit Bracket Mount 9199996

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9289548

BMW F31 F31 LCI Trunk Lid Baggage Door Wire Wiring Cable Harness Loom 9289548

€56.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 7263052

LCI Control Unit BMW X5 E70 E92 E93 Daytime Driving Lights 7263052

€28.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8642658

BMW G11 LCI G12 LCI G30 Earth Ground Line Cable Transmission Gearbox 8642658

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9347964

BMW F01 F02 F03 F04 F10 F12 F13 F30 F31 F32 F34 TV Module Control Unit 9347964

€113.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6956748

BMW E87 E90 E91 LCI PDC Ultrasonic Parking Sensor Tiefgruen Green A43 6956748

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 3450286

BMW X3 E83 LCI N47 Earth Cable Flow Electric Battery Negative 3450286

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9247081

BMW X1 E84 Wiring Loom Harness Passenger Side 9247081

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 7849627

BMW F80 M3 F82 M4 Engine Valvetronic Wiring Cable Loom Harness 7849627

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9270490

BMW X5 F15 Antenna Aerial Diversity Trap Circuit Control Module 9270490

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 7789231

BMW X5 E46 E53 E60 E65 Preheater System Lead Cable Starter 7789231

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9259354

BMW F10 F20 F30 Camera Module Reversing Rear View Camera Control 9259354

€94.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8642652

BMW G30 Battery Negative Ground Cable Line Equi Potential Bonding LEB 8642652

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9231321-1

BMW X3 F25 X4 F26 Dashboard Monitor Onboard Central Display Screen 6,5" 9231321

€42.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8573260-6

BMW F20 F21 116d ed Diesel N47N 116HP ECU Kit DDE 8573260 + Key + FEM Manual

€227.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 7488140

BMW F10 F20 F21 F30 F31 LCI SCR Control Module ECU Unit 7488140

€42.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9891437

BMW F40 F44 G20 LED Ambient Light Module Control Unit Violet 9891437

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8380944-1

BMW E46 E65 E66 E67 Aerial Antenna Amplifier Radio Signal Trap Circuit 8380944

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8362064

BMW E39 X5 E53 Z4 E85 Drive For Window Lifter Motor Right O/S 8362064

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9267200-1

BMW E92 ECU Body Control Module Junction Box L1 PL2RR JBBFE 9267200

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9346799

BMW F01 F02 LCI F10 Diversity Aerial Antenna Amplifier DAB 9346799

€47.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6981142

Window Lifter Motor BMW E60 E61 Drive Actuator Front Right O/S 6981142

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6907329

BMW E65 Door Cable Guide Rear Left N/S Wiring Loom Bracket Trim Cover 6907329

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 7542615

BMW 1 3 5 6 7 Z4 Series E87 E90 E60 E64 E65 E85 Power Distribution Box 7542615

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6826201

Junction Point BMW X5 F15 X6 F16 B + Battery Power Distributor 6826201

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6823589

BMW F10 Xenon Footwell Light Module Control Unit ECU FRM III 9126314

€94.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6826326

BMW F40 G05 G20 G30 Shark Roof Fin Antenna Aerial Module Unit 6826326

€56.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 1388911-2

BMW E36 E38 E85 Mini R52 R57 4x Change-Over Contact Relay Violet Set 1388911

€28.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6841692

BMW F20 Head Unit Navigation GPS Sat Nav Infotainment DAB High F10 F30 6841692

€332.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9159795

BMW X5 X6 E70 E71 Control Unit Air Module Bag ECU Unit Bosch 9159795

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9380883

BMW F20 F21 F30 F31 Control Unit Air Conditioning A/C Module 9380883

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6927786

BMW X5 Series E53 Amplifier Compensator Holder Catch Bracket 6927786

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 7266666

BMW F11 Touring Control Unit Rear Tailgate Boot Lid Function Module 7266666

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6850783

BMW F01 F02 LCI F06 F10 F11 F13 ECU ICM Control Unit Module Airbag 6850783

€28.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9118263

BMW F01 F02 F03 F10 Antenna Amplifier Module Trap Circuit 9118263

€37.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6911584

BMW E65 E66 Steering Wheel MFL Phone Switch Buttons Left N/S 6911584

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8592700

Glow Plug Wiring BMW F48 Mini F57 Wiring Harness Engine Module 8592700

€37.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 5A61AA3

BMW X1 U11 Radio Remote Control Car Key Wireless BDC ECE ROW 5A61AA3

€7,599.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6982652

BMW 1 Series E82 E88 Positive Battery Lead Cable Wire 61126982652 6982652

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9380933

BMW F45 Front Door Wiring Driver's Door Cable Wiring Loom Harness 9380933

€28.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 7944003

BMW G30 G31 G11 G32 GT PDC Module Parking Assist Distance Control Unit 7944003

€32.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6968649

BMW E93 Convertible Aerial Antenna Amplifier FM/AM Left N/S 6968649

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6801454

BMW X5 F15 Wiring Harness Loom Cable 6801327

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6948182

BMW E60 E61 LCI Alarm System Unit Ultra Sonic Module

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6964139

BMW 7 Series E65 E66 E67 Front Control Unit Door Passenger Side 6964139

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6934011

BMW 7 Series E65 E66 Cable Harness Loom Front Door Wiring Left N/S 6934010

€32.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8585379

ECU BMW F30 330d N57N 258HP Diesel Engine Control Unit Automatic 8585379

€51.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6950364

BMW E65 E66 Front Right Door O/S Wiring Harness Carrier 6950364

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6837092

BMW G30 G12 Fuse Relay Box Rear Trunk Power Distribution B + Box Basis 6837092

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9316568

BMW X5 F15 X6 F16 Front Fuse Box Relay Module Control Unit 9316568

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8570673-2

Alternator Generator BMW F07 F10 F11 FN57N N57Z Diesel Engine Valeo 8570673

€70.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6943835

BMW E90 E91 E60 E61 E64 CAS3 Module Control Unit 6943835

€66.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9162930-WB1

BMW E81 E82 E87 E90 E91 Parking Sensor PDC Ultrasonic Bluewater - 896 SET X2

€28.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9323554

BMW 1 3 Series F20 F21 F30 Operating Unit Audio FBM Control Unit Panel 9323554

€32.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9337205

BMW F32 Door Wiring Front Door Right Loom Cable Wiring Harness 9337205

€28.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6938211

BMW 3 Series E90 E91 M3 Wiring Loom Front Door Right Driver's Side 6938211

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9252819

BMW F01 F07 F10 F11 F12 Camera Module Based Assist Systems Control Unit 9252819

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9390396

Audio Amplifier BMW F20 F21 F22 Harman Kardon Active Sound Design Unit 9390396

€94.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9377150

BMW 1 Series F20 Bluetooth Control Module Unit TCB ECE 9377150

€28.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8576333-10

BMW F20 F21 Engine Control Unit Diesel N47N 184HP ECU DDE Set 8517862 Automatic

€132.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9239323

BMW E81 E90 LCI Business System Car Infotaiment Computer CIC 9239323

€113.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9296975

BMW X5 F15 Control Unit Bracket Boot Trunk Module Unit Mount Holder 9296975

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8619095

BMW i3 I01 Hybrid Electric Earth Ground Cable Negative Battery Lead 8619095

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 7259883

Stop Lamp Cover BMW F30 F80 M3 Rear Third Stop Brake Lamp Trim 7259883

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9315080

BMW X3 F25 Window Lifter Switch Driver's Side Wiring Harness Loom Cable 9315080

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8582280-13

BMW F20 Engine Control ECU 117HP 116d N47N N47D20C 2.0 Diesel 8582280 Manual

€284.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8513559

BMW X3 F25 30dX N57N Engine Module Injector Wiring Cable Loom Harness 8513559

€284.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. P0148459-IB1

Mini Cooper One 1 R50 Fuel Filler Cover Fill In Flap Indi Blue Metallic 862

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8573260-4

ECU Kit BMW F20 F21 116d ed Diesel N47N 116HP DDE 8573260 Key FEM Lock Manual

€284.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 7207150

BMW F10 F11 Plug Bumper Front Trim Dummy Plug Right O/S Panel 7207150

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6906070

BMW X5 E53 Roof Antenna Amplifier Trap Circuit 6906070

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9380940

BMW F45 Front Door Wiring Passenger Door Cable Wiring Loom Harness 9380940

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6910719

BMW Z4 E85 E86 CD-Changer Bracket Left N/S Holder Mount Carrier 6910719

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

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