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 F45 F48 F49 Mini Countryman F60 Ground Earth Cable Adapter Mass 9437208

€28.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 9226888

BMW 1 Series F20 F21 Antenna Aerial Noise Suppression Filter 9226888

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 6940778

BMW E65 E66 Front Seat Wiring Loom Harness Right O/S 6940778

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 3426159

BMW X3 E83 2.5i 3.0i M54 Wiring Loom Harness Engine Automatic Gearbox 3426159

€85.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 6980008

BMW E61 E65 E66 Tailgate Trunk Lift Control Module 6980008

€56.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 9263803-4

BMW E90 Max Brose Footwell Light Module Control Unit FRM3R 9263803

€189.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 9128570

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

€28.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 9225619

BMW F10 Electronic Front Seat Memory Module Control Unit ECU 9225619

€70.95

Free delivery: Aug 10 – 11

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: Aug 10 – 11

If paid before 14:00

Part no. 7561834-22

BMW E87 E90 120i 320i N46 150HP Engine Control DME Module 7561834 Automatic

€284.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 9354226

BMW X5 F15 F20 F21 F23 F30 F31 Rain Light Solar Sensor Windscreen 9354226

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 5A4A9D6

BMW G20 Front Door Wiring Harness Cable Driver Side 5A4A9D6

€37.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 9159311

BMW 5 Series F10 F11 Mini R55 R56 R57 Door Sensor Airbag 9159311

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 6946073

BMW E46 Battery Cable Positive Plus Lead Wire 6946073

€113.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 8586573

BMW F20 F30 LCI Wiring Harness Engine Gearbox Module 120dX 320dX B47 8586573

€156.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 9436289

BMW G20 G21 Rear Door Wiring Loom Cable Control Unit Left Right N/O/S 8718245

€32.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 7802929

BMW 5 7 E60 E61 E65 M57N M57N2 Compact Alternator Generator VALEO 170A 7802929

€161.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 6798872-1

BMW F10 F11 F30 F31 Wheel Module Tire Pressure Control RDC 433MHZ Unit 6798872

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 6868724

BMW X5 F15 F85 X6 F16 F86 ICM Control Unit ACC Support V-5.7 6868724

€332.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 7560377

Cable Alternator BMW E81 E82 E87 E88 E90 E91 LCI Starter B+ 7560377

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 5A7A0B5

BMW F70 F74 X1 U11 X2 U10 Engine Wiring Loom Harness Cable B38 Petrol 5A7A0B5

€146.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 6851242

ICM Module BMW F01 F02 Integrated Chassis Management QL ES Control Unit 6851242

€28.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 7634059

BMW F30 F31 F32 N20 Engine Gearbox Module Wiring Cable Loom Harness 7634059

€32.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 9391253

BMW F10 F11 Wiring Cable Loom 9391253 9391252

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 8621016-1

BMW G20 G30 Accumulator Battery Negative Ground Cable Wiring Plug 8621016

€23.95

Free delivery: Aug 10 – 11

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: Aug 10 – 11

If paid before 14:00

Part no. 8576341-13

BMW F20 F21 116d 116HP N47N Engine ECU Control Unit DDE Kit 8576341 Manual

€165.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 8612576

BMW X1 F30 F31 LCI Starter Motor Engine 8612576

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 9890599

BMW F90 M5 G11 G30 Air Module Crash Control Unit 9890599

€142.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 7619136

BMW E84 F25 F26 N20 Engine Sensor Module Wiring Cable Loom Harness 7619136

€56.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 6949080

BMW E90 E91 E92 E93 Seat Cross Member Wiring Cable Channel Duct 6949080

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 8643126

BMW F06 F12 F13 M6 F10 M5 S63N 560HP Engine Control Module 8643126 Automatic

€541.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 9218697

BMW X6 E71 Central Woofer Bass Speaker Stereo Subwoofer N/S 9218697

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 8574380-1

BMW F10 520d N47N 184HP Engine Control Unit ECU DDE 8574380 Automatic

€165.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 8654466-1

BMW F45 225i 231HP B48 Engine ECU Kit Unit DME 8654466 BDC Key Automatic

€664.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 6921309

BMW E65 E66 Centre Console Front Armrest Tray Cables Wiring Set 6921309

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 9388183

BMW F45 Active Tourer Body Control Module ECU 9388183

€132.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 5A7A0B8

Bmw U06 U10 F70 Engine Wiring Wire Harness Loom Servotronic Cable 5A7A0B8

€94.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 7624617-1

BMW F20 F21 F30 F31 F32 Cable Alternator Starter Base B 7624617

€37.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 6797031

BMW F25 Shock Absorber Sensor Adapter Wiring Loom Cable Front Axle 6797031

€28.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 7579155-1

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

€32.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 6949226-2

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

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 9346566

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

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 8606777-4

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

€455.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 6949226-1

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

€23.95

Free delivery: Aug 10 – 11

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: Aug 10 – 11

If paid before 14:00

Part no. 8507202-2

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

€218.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 7580334

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

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 9344785

BMW F33 F83 M4 Convertible Folding Top Roof ECU Control Unit CTM 9344785

€56.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 9277818

Antenna Amplifier BMW F23 Cabrio FM Radio Booster Unit Module 9277818

€61.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 8576341-6

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

€237.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 9205477

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

€94.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 6819652

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

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 8513184-2

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

€123.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 7570287

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

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 9148016-3

BMW E90 E91 E92 Professional CCC DVD Navigation Controller Plate 9148016

€66.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 9274347

BMW F32 Front Door Wiring Loom Cable Passenger Side 9274347

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 9268438

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

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 8507908

BMW F20 Gearbox Transmission Harness Wiring Loom Manual 8507908

€56.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 8577870

BMW X5 F15 Engine Control Module Unit ECU Diesel 8577870

€664.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 8582279-8

BMW F30 F32 F34 GT 320d 420d N47N 184HP Engine Module Unit ECU DDE 8582279

€51.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 5B3A404

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

€474.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 9252549

BMW F12 Front Seat Control Unit Module Memory ECU 9252549

€66.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 8387551

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

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 8606447

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

€37.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 7822015

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

€80.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 9488417

Mini F60 BMW F48 SCR AdBlue Module Control Unit 9488417

€47.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 9252651

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

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 9297118

BMW F23 Electric Alarm Siren System Control Unit 12V 9297118

€51.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 6940588

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

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 8514293

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

€42.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 8591075

BMW X5 F15 Engine Control Unit 231HP ECU Kit Automatic Gearbox 25dX B47 8591075

€759.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 1421295

Mini EGS Control Unit Module ECU Programmed 5 Pins 1421295

€28.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 8639595-12

BMW F30 F31 F32 328i 428i N20 245HP Engine Control ECU DME 8639595 Automatic

€222.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 8570931

BMW F10 F20 F30 F32 Engine ECU Control Module Unit 184HP N47N Manual 8570931

€28.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 9242523

BMW X5 E70 Footwell Light Control Module Unit 9242523

€175.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 6920478

BMW 7 Series E65 E66 E67 Sensor Front Right Door Airbag 65776920478 6920478

€23.95

Free delivery: Aug 10 – 11

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: Aug 10 – 11

If paid before 14:00

Part no. 8573260-2

BMW F20 F21 116d ed Diesel N47N 116HP Engine Control Unit DDE 8573260 Manual

€47.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 8510137-3

BMW F10 F11 520d N47N 184HP Engine Control Module ECU DDE 8513242 Manual

€113.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 7516376

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

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 7540369

BMW E46 N46 Wiring Harness Engine Gearbox Module Loom Cable 7540369

€94.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 7634056

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

€28.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 9243667

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

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 9259469

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

€32.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 6934096

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

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 8576333-1

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

€218.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 8576484

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

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 6938221

BMW 3 Series E90 E91 Wiring Loom Front Door Left Passenger Side 6938221

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 7510646

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

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 6980089

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

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 9354290-1

BMW X1 F48 Pedestrian Protection Impact Crash Sensor Module PTS 9354290

€28.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 6826983

BMW F20 F21 F30 F31 Air Module Control Unit ECU Controller 6826983 0 285 013 626

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 9227179

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

€28.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 8510221

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

€113.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 9166542

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

€47.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 6943525

BMW E90 E91 E92 E93 Wiring Loom Cable Harness 6943525

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 8510221-2

BMW E90 E91 LCI E92 330d Diesel N57 245HP ECU Engine Kit DDE 8510221 CAS3 + Key

€199.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 6938226-2

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

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

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