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 F32 Cable Alternator Starter Base B 7624617

€37.95

Part no. 6822680

Camera Kafas BMW F20 F21 F22 F87 LCI Front Windscreen Camera 6822680

€94.95

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€28.95

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Starter Motor BMW X5 E70 LCI X6 E71 Z4 E89 N20 N55 Petrol Engine 7579155

€32.95

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4 x BMW E63 E64 DWA Door Alarm System Module Control Unit Set 6949226

€23.95

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BMW F45 F46 X1 F48 X2 F39 Negative Battery Cable Terminal Wiring 9346566

€23.95

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BMW X3 F25 Engine Wiring Loom Harness Cables 2.0d N47N Diesel 7811157

€113.95

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BMW F30 F31 320iX N20 184HP Engine Control Unit ECU DME 8606777 Manual

€455.95

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2 x BMW E63 E64 DWA Door Alarm System Module Control Unit Set 6949226

€23.95

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

€23.95

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BMW 3 Series E90 E91 LCI 318d N47N 143HP ECU Kit DDE 8507202 CAS3 Key Automatic

€218.95

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Earth Ground Cable BMW F10 F11 F13 F01 Battery Cable Engine Wiring 7580334

€23.95

Part no. 9277818

Antenna Amplifier BMW F23 Cabrio FM Radio Booster Unit Module 9277818

€61.95

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BMW G11 G20 G23 G26 F30 LCI F90 F96 Fuel Pump Control FPC Module Unit 7482455

€23.95

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

€237.95

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BMW E82 E88 120i N43 Positive Battery Lead Cable Wiring Petrol 9205477

€94.95

Part no. 6819652

Map Fuse Box BMW F15 F16 F85 F86 Grouping Diagram Card 6819652

€23.95

Part no. 8513184-2

BMW X3 F25 20dX Diesel N47N 184HP Engine Module ECU Kit DDE 8513184 Automatic

€123.95

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BMW Mini Cooper One R55 R56 R57 Earth Ground Battery Strap Cable 7570287

€23.95

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BMW F87 M2 370HP N55 Engine Control Unit Module ECU DME 8693361 Manual

€560.95

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BMW E90 E91 E92 Professional CCC DVD Navigation Controller Plate 9148016

€66.95

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BMW F32 Front Door Wiring Loom Cable Passenger Side 9274347

€23.95

Part no. 9268438

BMW F10 F11 F01 F02 F03 Crash Impact Air Module Central Sensor Unit 9268438

€23.95

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BMW F30 F31 Front Bi-Xenon Headlight Headlamp Wiring Adapter Left N/S 7338703

€23.95

Part no. 8507908

BMW F20 Gearbox Transmission Harness Wiring Loom Manual 8507908

€47.95

Part no. 8577870

BMW X5 F15 Engine Control Module Unit ECU Diesel 8577870

€664.95

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BMW X1 U11 High Voltage HV Cable Harness Wire Loom Charging Electronics 5B3A404

€474.95

Part no. 9252549

BMW F12 Front Seat Control Unit Module Memory ECU 9252549

€37.95

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BMW 3 Series E46 Battery Positive Cable Fuse Box Base B 8387551

€23.95

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BMW F20 F21 LCI Wiring Harness Motor Sensor System Module N13 8606447

€37.95

Part no. 9367650

BMW F15 Radio Audio Professional Player Head Unit Multimedia 9367650

€189.95

Part no. 7822015

BMW G20 G21 G26 330d 430d B57P Diesel Starter Cable Wiring B+ 7822015

€80.95

Part no. 9488417

Mini F60 BMW F48 SCR AdBlue Module Control Unit 9488417

€47.95

Part no. 9252651

BMW 1 2 3 Series F20 F21 F22 F30 Radio Remote Control Receiver 868 MHZ 9252651

€23.95

Part no. 9297118

BMW F23 Electric Alarm Siren System Control Unit 12V 9297118

€51.95

Part no. 6940588

BMW 5 Series E60 E61 Alarm System Unit Ultra Sonic Module 6940588

€23.95

Part no. 8514293

BMW F15 Alternator Starter Motor Battery Cable Wiire Harness Loom B+ 8514293

€42.95

Part no. 1421295

Mini EGS Control Unit Module ECU Programmed 5 Pins 1421295

€28.95

Part no. 9242523

BMW X5 E70 Footwell Light Control Module Unit 9242523

€175.95

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

€23.95

Part no. 6937465-3

BMW E92 E93 Front Bumper Fog Lights Light Lamp Wiring Cable Left N/S 6937465

€23.95

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BMW E65 E66 E67 Electric Valve 735i 745i 735Li 745Li 745LiS 7516376

€23.95

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BMW E46 N46 Wiring Harness Engine Gearbox Module Loom Cable 7540369

€94.95

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Engine Wiring BMW F20 F21 F30 F31 N20 Cable Loom Harness 7634056

€23.95

Part no. 9243667

BMW X3 F25 X4 F26 Rear Door Left Right N/O/S Wiring Loom Cables Harness 9243667

€23.95

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BMW X3 F25 Fuse Box Power Distribution Control Unit Module Rear 9259469

€32.95

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BMW 7 Series E65 Cable Harness Door Rear Right Left N/O/S Wiring Loom 6923713

€23.95

Part no. 8603352-8

BMW F20 Engine Control Unit ECU Key 136HP 1.6 Petrol N13B16A Manual 8603352 Kit

€445.95

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BMW E90 LCI N47N 320d ed 163HP Engine Unit ECU KIT DDE FEM Key 8512047 Manual

€151.95

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BMW F10 F11 520d X3 F25 20dX N47N 184HP ECU Kit DDE 8576333 Key CAS4 Automatic

€218.95

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BMW X3 G01 G20 G21 G30 G31 Starter Acoustic Vibration Plug 8576484 8588900

€23.95

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BMW 7 Series E65 E66 E67 Ventilation Hose E-Box Fan 7510646 12907510646

€23.95

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BMW 5 Series E60 E61 Alarm System Unit Ultra Sonic Module 6980089

€23.95

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BMW X1 F48 Pedestrian Protection Impact Crash Sensor Module PTS 9354290

€23.95

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BMW E90 E91 E92 N52N 325i 218HP Engine ECU Kit DME 7577068 CAS3 Key Automatic

€427.95

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BMW 1 Series E81 Body Control Module ECU L2 PL2RR JBBFE Junction Box 9227179

€28.95

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BMW E90 E91 LCI E92 330d Diesel N57 Engine Control Unit DDE 8510221 Automatic

€23.95

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BMW E92 HDD Navigation Reader System Module Unit ZB CE3 Navi JAPAN 9166542

€28.95

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BMW F74 Gran Coupé Battery Positive Plus Cable Underfloor Wiring Harness 5A90877

€142.95

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BMW F74 X1 U11 X2 U10 Battery Tray Plate Mount Bracket 5A54F89

€37.95

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BMW 3 Series 2 E90 E91 LCI M3 Wiring Loom Rear Door Left Right 6938226

€23.95

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BMW 6 X3 Series E63 E83 Radio Antenna Amplifier Suppression Filter

€23.95

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BMW X3 F25 Fuse Box Power Distribution Control Unit Box Rear 9259468

€37.95

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BMW X5 F15 X6 F16 Antenna Amplifier Control Unit Module 9289679

€23.95

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BMW 1 3 X1 SERIES 3 E81 E82 E84 E87 E88 E90 E91 E92 Power distribution box

€28.95

Part no. 9423398

BMW X1 F48 X2 F39 B47 AdBlue SCR Control Unit Module ECU 9423398

€80.95

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BMW X3 E83 Boardmonitor Central Information Display Screen 6.5" 3452285

€237.95

Part no. 8582190-2

BMW F10 LCI 535d N57Z 313HP Engine Module ECU DDE Kit CAS4 Key 8582190 Automatic

€237.95

Part no. 9164350

BMW E63 E64 Negative Battery Cable Minus Pole IBS 9164350

€80.95

Part no. 9231399

Camera Module BMW F01 F07 F10 F11 F12 Based Assist Systems Control Unit 9231399

€23.95

Part no. 8574100-3

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

€218.95

Part no. 8780797

BMW X3 G01 X4 G02 Battery Housing Battery Bracket Holder Box 8780797

€28.95

Part no. 9204849

BMW X5 X6 Series E70 E71 Airbag Control Module ECU Unit 9204849

€23.95

Part no. 8574095-3

BMW F20 F21 F30 118d 318d Diesel N47N Engine ECU DDE 8574095 +Key +FEM Automatic

€222.95

Part no. 8616811

BMW F20 F22 F32 Positive Battery Cable Battery Plus Lead Loom Wire 8616811

€23.95

Part no. 9321014

BMW F01 Display Screen On Board Sat Nav Central Information Monitor 9321014

€137.95

Part no. 9260600

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

€23.95

Part no. 9367807-1

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

€23.95

Part no. 9281714

BMW F83 Camera Kafas Front Windscreen Camera 9281714

€42.95

Part no. 9247103

BMW X5 E70 Audio Sound Amplifier Booster HiFi Module 9247103

€23.95

Part no. 7277002-2

BMW F25 Front Headlight Light Lamp Xenon Right O/S Wire Loom Harness 7217300

€23.95

Part no. 7606628

BMW F10 M5 F06 F12 F13 M6 S63N Engine Alternator Generator 14V 210A 7606628

€75.95

Part no. 7838113

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

€51.95

Part no. 6834171

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

€165.95

Part no. 9360372

BMW X6 F16 Fuse Box Power Distribution Relay Control Unit Box Rear 9360372

€23.95

Part no. 9325657-1

BMW F30 F20 F22 BCM Body Control Module Fuse Relay Box 9325657

€37.95

Part no. 8783805

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

€42.95

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

€32.95

Part no. 9337231

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

€94.95

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BMW E87 E90 E91 Cable Alternator Starter Base B 7794911

€23.95

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BMW F20 F30 120d 320d N47N 163HP Engine ECU Kit DDE 8576333 Lock FEM Key Manual

€113.95

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BMW F20 F30 Mini F56 Alternator Generator 150A Denso 7640131

€28.95

Part no. 9380883

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

€23.95

Part no. 9353217

BMW X6 F16 Antenna Amplifier Aerial Diversity Booster Control Unit 9353217

€47.95

Part no. 8582886-2

BMW X3 F25 20dX B47 190HP Engine Control ECU Kit DDE 8574100 Automatic

€218.95

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BMW F20 F31 LCI F32 Telematics Control Unit Module ATM ECE 4G WLAN 2622602

€161.95

Part no. 6935625

BMW X3 E83 Z4 E85 E86 Radio Business CD Player 65126935625 6935625

€180.95

Part no. 9119444-1

BMW E81 E87 LCI E90 E91 E92 Front Fuse Box Power Distribution 9119444

€23.95

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BMW F20 F21 F22 F23 F30 F31 F32 F33 F34 F36 Cover Electronics Box 8509914

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