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 F22 F30 F31 Negative Minus Pole IBS Battery Lead Cable 9322900

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8621019

BMW G01 G11 G12 G20 G30 Battery Cell Module Connector Harness Loom Cable 8621019

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6963651

Alarm Module BMW E81 E84 E87 E90 Ultra Sonic System Sensor 6963651

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8844293

BMW X1 U11 High-Voltage Battery Module Connector Wiring Harness Cable 8844293

€51.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 7678321

BMW X4 F26 Harness Wiring Cable Loom 7678321 767832-113

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9474776

KaFAS Camera BMW F10 F20 LCI F30 Mini F55 F56 Control Unit ECU Module 9474776

€32.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9211840

BMW F01 Wiring Loom Cable Harness 9211840

€28.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9178791

BMW F01 F02 F10 F11 Cable Wiring Set ARS Valve Block 9178791

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9167202

BMW E60 E61 LCI E63 E64 Body Gateway Module ECU Control Unit 9167202

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9248361

Radio Player BMW F10 F11 F20 F21 F25 F30 F31 Alpine CD Champ 2 Head Unit 9248361

€56.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9210135

BMW F07 GT Rear Door Wiring Loom Cable Harness 9210135

€28.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9377155

BMW F20 F23 F34 F82 Telematics Module Bluetooth Telematik Control Unit 9377155

€142.95

Free delivery: Jul 29 – Aug 3

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: Jul 29 – Aug 3

If paid before 14:00

Part no. 9356156

External Ignition Base BMW F20 F30 F32 F33 Power Terminal Distribution 9356156

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 7640875

Alternator Generator BMW F10 F20 F30 LCI Diesel Engine Unit Denso 180A 7640875

€32.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 7233914

BMW E90 E91 Central Locking Lock Immobilizer Control Unit Module ECU 7233914

€37.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6999950

LED Module BMW G11 G12 G20 F90 Dashboard Illumination Control Unit 6999950

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9294912-2

BMW F10 X5 F15 Rear Seat Compartment Screen Display 9,2" Surround Trim 9294912

€32.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9216128

BMW 3 4 5 Series E92 F32 E61 LCPA Seat Belt Module ECU 9216128

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9215184

BMW E60 E87 E90 E91 Hands Free Electronics Charging Module MULF2 9215184

€75.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6856747

BMW F10 F20 F30 Tow Bar Trailer Towing Control Module Unit AHM 4 6856747

€137.95

Free delivery: Jul 29 – Aug 3

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: Jul 29 – Aug 3

If paid before 14:00

Part no. 6886185

ICM Module BMW F20 F21 F30 F31 Crash Control Unit Airbag ECU 6886185 0265020864

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8689723-3

BMW F20 M140i B58 340 HP ECU DDE Key Kit Petrol 8689723 6843898 Automatic

€560.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 3404568

BMW X3 Series E83 2.5i 3.0i Engine Starter Motor Positive Battery Cable 3404568

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8373901

BMW 5 7 X5 E38 E39 E53 Steering Column Adjuster Switch Stalk 8373901

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 7583526-1

BMW X3 Series E83 2.5si N52N 218HP Engine ECU Kit DME + Key 7583526 Manual

€332.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8582280-4

BMW F20 116d N47N 116HP Engine Control ECU DDE 8582280 Automatic Transmission

€47.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6803169

Air Con Module BMW F20 F30 F31 Mini F55 F56 Air Conditioning A/C Unit 6803169

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6956672

BMW E63 E63N LCI Centre Console Switch Centre DTC PDC 6956672

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9145401

BMW 5 Series E60 E60N E61 E61N LCI Airbag ECU Control Unit Module

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8607569

BMW X5 F15 40eX N20 Hybrid Starter Motor Automatic Transmission 8607569

€170.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6843898

BMW F20 F21 F22 F30 F31 F32 Body Control Module Unit FEM ECU LR01 6843898

€94.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6932399

BMW X5 E53 Cable Loom Plug Socket Connector Wiring Harness 6932399 6932396

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9225830

BMW F07 Right O/S Central Bass Loud Speaker Stereo System Unit 9164582

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9341000

BMW F21 LCI Door Wiring Cables Harness Loom Front 9341000

€28.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9261606

BMW 1 2 F20 F21 F22 Rear Bumper PDC Ultrasonic Sensor Mineralweiss White A96

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 5A47298

BMW F74 Gran Coupé Power Distribution Box LIN Module 5A47298

€37.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 5B39BC7

BMW U06 Active Tourer U11 Parking Assistance Module Control PDC Unit 5B39BC7

€32.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6935600

BMW E81 E82 E87 E90 E91 PDC Parking Ultrasonic Sensor Sonora Metallic 6935600

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9319918

Adapter Lead Wire BMW F45 F46 X1 F48 Cable Active Air Flap Control 9319918

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8635816

Engine Wiring BMW F20 F30 F31 LCI B38 Automatic Gearbox Loom Harness 8635816

€61.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 7571510-5

BMW Z4 E85 Roadster 2.5i N52 177HP Engine Control Unit ECU DME 7571510 Manual

€284.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 7520902

BMW 3 5 E60 E90 E92 Carrier Bracket Holder Engine Control Module Unit 7520902

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8678976

Engine Wiring Mini F56 BMW F40 Petrol B38C Valvetronic Servo Motor Harness

€37.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9218331

BMW E93 Radio Head Unit Comand CD DVD Player Changer 9218331

€617.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8580308-2

BMW X1 E84 20dX N47N 184HP Engine Control Module ECU DDE Kit 8580308 Automatic

€237.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9361116

BMW F10 LCI Body Control Module ECU Unit JBBFEIII V2 PL6 9361116

€89.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6856283

BMW F30 F31 Lane Change Wiring Sensor Module Master Right O/S HC-2 6856283

€104.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8473167

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

€28.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8514291

Battery Cable BMW X3 F25 X4 F26 B47 Alternator Starter Base B Cable 8514291

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6926961-1

BMW E60 E61 X5 E70 X6 E71 F07 F10 F11 Seat Adjustment Switch Left N/S 6926961

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9261612

Ultrasonic Parking Sensor BMW F20 F21 F23 F87 PDC Black 9261612

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 7075907

BMW Z4 E85 Left N/S Contact Bush 7075907

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6921309

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

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9302937

BMW F01 LCI Cable Door Rear Left Right N/O/S Wiring Harness 9262882

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9234424

BMW F10 F11 Fuse Box Power Distribution Control Unit Box Rear 9234424

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9259800

BMW F10 F12 F13 F20 F30 F06 Mini F55 F56 F57 DVD CD Changer Control Unit 9259800

€66.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 7555193

BMW F10 Control Unit Box F07 F11 Engine Ventilation Housing Box 7555193

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 1388911

BMW E36 E38 E21 E85 R52 R57 Change-Over Contact Relay Violet 1388911

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9294912-1

BMW F10 F11 X5 F15 X6 F16 Rear Seat Compartment Screen Display 9294912

€284.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6940624

BMW E81 E87 E90 E91 E92 Ultrasonic-sensor PDC Arktis Metallic A34 6940624

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6957807

BMW X3 E83 Amplifier For Stereo System Harman/Becker AMP 6957807

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9374507-1

BMW F23 REM Rear Electronic Module Fuse Box Control Unit V2 9374507

€28.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 7823310

BMW 3 Series F30 F31 330d 330dX N57N Diesel Alternator Starter Cable B+ 7823310

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9261110

BMW F20 F21 F30 F31 Fuse Box Power Distribution Control Unit Box Rear 9261110

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9259467

Fuse Box BMW X3 F25 Power Distribution Control Unit Module Front 9259467

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8610006-1

Mini Cooper S R56 LCI N18 1.6 184HP Engine ECU Kit DME 8610006 CAS3 Key Manual

€493.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9378071

BMW F12 F12 LCI Convertible Top Module 9378071

€66.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8809737

PDC Wiring BMW X4M F98 G02 Rear Bumper Parking Assistance Sensor Harness 8809737

€89.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6927311

BMW E60 Front Seat Control Unit Module Controller ECU 6927311

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6905950

BMW X5 Series E53 Spoiler Dualband Antenna Amplifier Aerial 6905950

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9261598

BMW F20 F21 F22 Rear Bumper PDC Ultrasonic Sensor Valencia Orange Metallic B44

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8676222

BMW 3 F30 LCI Hybrid 330e Battery Starter Connecting Lead Cable Wiring 8676222

€113.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8518802

BMW F30 F31 330dX N57N Engine Gearbox Module Wiring Cable Loom Harness 8518802

€70.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 5B3E981

BMW F70 F74 F78 Battery Negative Minus - Earth Lead Cable Wiring 5B3E981

€104.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6941445

BMW E63 E64 Bluetooth Cable Hands Free Telephone Microphone Unit 6941445

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8595355

BMW G11 G12 G30 G32 G14 Starter Cable Alternator Cable Starter-Base B+ 8595355

€29.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9345321

BMW F01 F02 Body Control Module Junction Box ECU 9345321

€42.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6861026

BMW I01 F45 F46 Mini F55 F56 Parking Assistant PDC Control Unit Module 6861026

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 7253188-1

BMW 3 Series E92 Sports Seat Left Right Thigh Support Cover Trim Leather Dakota

€47.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6809316

BMW F10 F20 F23 F30 Telematics Module Bluetooth Communications Control 6809316

€85.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9365837

BMW F20 F21 F22 F30 F31 Head Unit Basic Media Headunit 9365837

€218.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9383069

Head Unit BMW F10 F20 F22 F30 Navigation Sat Nav High Control Module 9383069

€142.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9210863

BMW X3 F25 Fuse Box Power Distribution Module Relay Unit 9210863

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8517862-15

BMW F10 F20 F30 F32 Engine Control Unit Diesel N47N 184HP xDrive ECU DDE 8517862

€56.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 7220891

BMW E91 LCI Control Unit Module Support Plate Bracket Carrier Holder 7220891

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9185542-1

BMW X5 E70 Radio Navigation CCC Professional CD Player Head Unit 9185542

€332.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8570673

BMW F07 F10 Alternator Generator 221A Valeo N57N N57Z Diesel Engine 8570672

€94.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8379941

BMW X5 Series E53 Interior Roof Trim Cover Ultra Sonic Module Alarm 8379941

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6910542

BMW 3 X3 Series E46 E83 Battery Cable Plus Pole Power Positive 6910542

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9339825

BMW G11 G30 G31 Power Supply Module High Voltage Battery Terminal Point 9339825

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 7796127

BMW X5 X6 Series E70 E71 Diesel Battery Cable Starter-Base B+ 7796127

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 7804127

BMW E60 E61 LCI 520d Cable Alternator Starter Base B 7804127

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 8586568

BMW F20 F22 F23 Gearbox Transmission Module Harness Wiring Loom Cable 8586568

€56.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 9212916

BMW 5 7 X5 E70 F01 F02 F10 F11 Rain / Light / Solar Fogging Sensor 9212916

€28.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 7810860-1

BMW 3 Series E90 E91 E92 E93 LCI N47N Engine Alternator Starter Cable B 7810860

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 6968652

BMW 3 Series E93 E93N LCI Aerial Antenna AM / FM Right O/S 6968652

€23.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

Part no. 7805349-2

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

€265.95

Free delivery: Jul 29 – Aug 3

If paid before 14:00

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