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 F30 F32 Harman Kardon Audio Amplifier Booster Module Unit 5A081D5

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Free delivery: Nov 12 – 13

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Part no. 6944875

BMW E36 Z4 E85 Z3 Module Radar Burglar Alarm Sensor 6944875

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Part no. 9367693

BMW M5 F90 G11 G12 Power Distribution Relay Fuse Box Make Contact 9367693

€23.95

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Part no. 8511409

BMW F10 F11 N57N Control Unit Module Box Cover Bracket Carrier Mount 8511409

€23.95

Free delivery: Nov 12 – 13

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Part no. 8639595-16

BMW F30 320i N20 Engine Control Unit ECU DME 2.0 Petrol 184HP Manual 8639595 Kit

€332.95

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Part no. 21367510

BMW X2 F39 Antenna Amplifier AMP Control Module Unit 21367510

€23.95

Free delivery: Nov 12 – 13

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

€23.95

Free delivery: Nov 12 – 13

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

€23.95

Free delivery: Nov 12 – 13

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Part no. 8578504

BMW F30 LCI 335dX N57Z Engine Gearbox Module Wiring Cable Loom Harness 8578504

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6820234

Air Conditioning Module BMW F20 F21 F30 F31 A/C Control Unit 6820234

€23.95

Free delivery: Nov 12 – 13

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Part no. 9339339

BMW 1 3 F20 F21 F30 F31 Driver Side Seat Wiring Loom Cable Harness 9339339

€23.95

Free delivery: Nov 12 – 13

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Part no. 9237968

BMW F07 GT Central Gateway Module ECU Control Unit Lear ZGW-01 High 9237968

€66.95

Free delivery: Nov 12 – 13

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Part no. 7928690

BMW F74 Gran Coupé Radio Audio Remote Control Receiver 7928690

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7798875

BMW X5 Series E70 LCI Ventilation Grommet Unit Box Cover 7798875

€23.95

Free delivery: Nov 12 – 13

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Part no. 6956505-1

BMW 5 6 Series E60 E61 E63 E64 1 Power Distribution Fuse Relay Box Rear 6956505

€23.95

Free delivery: Nov 12 – 13

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Part no. 5A4CFA9

BMW G20 LCI Fuse Box Control Module Unit 5A4CFA9

€165.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8662411-7

BMW F20 LCI 118i B38 136HP Engine Control ECU Kit DME 8662411 Manual

€569.95

Free delivery: Nov 12 – 13

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Part no. 9371790

BMW 1 Series F20 Telematics Control Unit Module Bluetooth 9371790

€56.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8676222

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

€56.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9184560

BMW E65 E66 Seat Control Module Unit ECU 9134633 9184560

€47.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9134642

BMW E60 LCI Front Seat Control Module Unit ECU Left Right N/O/S 9134642

€51.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9124585

BMW 1 3 Series E87 E90 Front Rear PDC Ultrasonic Parking Sensor Sedonarot Red

€26.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 1380701080

Peugeot Boxer Bluetooth Aerial Antenna Control Unit Module Mopar 1380701080

€47.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9323477

BMW X5 F15 X5 M F85 Rear Door Wiring Harness Left Right N/O/S 9323477

€42.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7645837

BMW i3 I01 Electric Gearbox Gear Shifting Actuator Module Unit 7645837

€113.95

Free delivery: Nov 12 – 13

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Part no. 7612860

BMW F20 F21 F30 F31 F32 Battery Holder Bracket Supporting Rail 7612860

€23.95

Free delivery: Nov 12 – 13

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Part no. 6915327

BMW E46 E39 E60 E81 E87 E90 E91 F10 F20 F30 Relay Make Contact Sky Blue 6915327

€23.95

Free delivery: Nov 12 – 13

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Part no. 9337200

BMW 4 Series F32 F32N LCI Cable Loom Door Driver's Side Wiring Harness 9337200

€23.95

Free delivery: Nov 12 – 13

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Part no. 8490136

BMW F20 F21 F30 LCI B47 Wiring Loom Harness Engine Module 8490136

€37.95

Free delivery: Nov 12 – 13

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Part no. 8716575

BMW G20 G21 G21 LCI Door Wiring Harness Loom Front Driver's Side 8716575

€42.95

Free delivery: Nov 12 – 13

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Part no. 9353419

BMW F10 F11 Body Control Comfort Module Unit Junction Box ECU 9353419

€23.95

Free delivery: Nov 12 – 13

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Part no. 9253209

BMW E81 E87 LCI E90 E91 N43 DC/DC Wandler Torque Converter Module ECU 9253209

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8806980

BMW i3 I01 LCI Door Wiring Cable Loom Harness Rear Left Right N/O/S 8806980

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6955469

BMW E64 Air Module ECU Control Unit Centre Vehicle Sensor 6955469

€47.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9387151-1

BMW F30 Hybrid 330e B48X Positive Battery Lead Cable Starter Unit Wiring 9387151

€23.95

Free delivery: Nov 12 – 13

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Part no. 9315152

BMW X3 F25 Fuse Box Grouping Map Diagram Location 9315152

€23.95

Free delivery: Nov 12 – 13

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Part no. 8579479-6

BMW F20 F21 F30 F31 116HP N47N Engine Control Unit ECU Kit DDE 8579479 Manual

€275.95

Free delivery: Nov 12 – 13

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Part no. 8580192

Glow Plug Cable BMW G20 X3 G01 B47 Wiring Harness Engine Glow Module 8580192

€56.95

Free delivery: Nov 12 – 13

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Part no. 7798141

BMW E87 E90 Control Unit Box Closed Lid Cover Trim Bracket Diesel 7798141

€23.95

Free delivery: Nov 12 – 13

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Part no. 130002613-1

BMW 5 X5 7 Series E60 E61 E65 E70 Longitudinal Seat Adjusment Drive Motor

€23.95

Free delivery: Nov 12 – 13

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Part no. 8387568

BMW 7 Series E65 E66 Battery B Engine Compartment Terminal Point 8387568

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9436256

BMW G20 G21 Front Passenger Door Cable Harness Wiring Control Unit 9436256

€61.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9226333-1

BMW E88 Cabrio ECU Body Control Module H3 Junction Box 9226333

€51.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. E93-RADIO

BMW E93 Head Unit Radio Player Navigation Control Module 5A2BF31

€80.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 130002618

BMW X3 X5 E53 E83 Front Seat Adjustment Actuator Drive CRH 1-1968-01

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5B5FF36

BMW F70 F74 G60 X1 U11 Front Windscreen Camera Control Unit Module 5B5FF36

€313.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8711311

BMW G20 LCI Positive Plus Battery Wiring Cable Loom 8711311

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7601305

BMW F10 F11 LCI F13 N63 N63N Petrol Water Pump Adapter Lead Cable Wiring 7601305

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6944962

BMW E60 E61 Centre Console Switch Centre DSC PDC 6944962

€23.95

Free delivery: Nov 12 – 13

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: Nov 12 – 13

If paid before 14:00

Part no. 9113348

BMW E81 E87 LCI E90 E91 DC/DC Wandler Torque Converter Module 9113348

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9263944

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

€189.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7811701-2

BMW 1 3 Series E87 LCI E90 E91 N47 DDE 7811701 Engine Control Unit Diesel ECU

€37.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6953191

BMW 5 Series E61 Touring Diversity Aerial Antenna Suppression Filter 6953191

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 3418539

BMW X3 E83 Door Crash Sensor Bracked Mount Front Left Right N/O/S 3418539

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9315685-1

BMW 1 2 3 4 F20 F21 F22 F30 F31 F32 F36 Module Body Control Unit FEM 9315685

€42.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8585729

BMW 3 Series F30 320d N47N Engine Gearbox Module Wiring Loom Harness Cables Set

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6957348

BMW 6 Series E63 E64 F06 F12 F13 Aerial Antenna Amplifier Module Right O/S

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6960218

BMW E65 Passenger Seat Air Module Sensor Control Unit SRS 6960218

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8573258-12

BMW F20 F30 F31 118d 318d N47N 143HP Engine Control ECU DDE 8573258 Automatic

€56.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8576333-7

BMW F30 F31 F32 320dX 420dX N47N 184HP Engine ECU Kit DDE 8576333 Automatic

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8582803-1

BMW F10 530d N57N 258HP Engine Control Unit Module ECU DDE 8582803 Automatic

€218.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8844292

BMW X1 U11 High-Voltage Battery Module Connector Wiring Cable 8844292

€51.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8796289

BMW X3 G01 X4 G02 X5 G05 Battery Terminal Negative Cable Wire Wiring 8796289

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8672514-1

BMW F80 M3 F82 F83 M4 431HP Engine Control ECU Kit DME 8672514 + FEM Module Key

€1,139.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9282285

BMW X3 F25 Central Gateway Module Control Unit ECU 9282285

€47.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9389658

BMW F20 F21 F22 Telematics Bluetooth Control Module Unit TCB ECE GPS 9389658

€51.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9181453

BMW 1 X4 X5 Series F20 F21 F25 F26 Antenna Aerial Diversity Trap Circuit 9181453

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9389068

Fuse Box BMW F20 F21 F30 F31 F34 Power Distribution Front 9389068

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9363780

BMW F45 Seat Wiring Loom Harness Cable Rear Left N/S 9363780

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8585933

Wiring Loom Harness BMW F20 F30 F36 LCI B47 Engine Gearbox Module 8585933

€113.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5A02362

BMW G20 G26 G28 F44 F90 PDC Parking Sensor Control Module Unit 5A02362

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6922262

BMW 7 Series E65 E66 E67 Control Unit Door Front Passenger Side 6922262

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6921980

BMW 7 Series E65 E66 Control Unit Door Rear Passenger Side

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9288373

BMW X5 F15 Door Storage Pocket Compartment Fiber Optic Front Left N/S 9288373

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8482370

BMW G20 G30 Engine Wiring Loom Harness Cable B48B20A 8482370

€56.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7060552

BMW 3 Series E90 E91 Bowden Cable Hood Mechanism 7060552

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A1669006405

Mercedes W166 Control Unit Bracket Boot Trunk Module Unit Mount A1669006405

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9314229

BMW F20 Front Electronic Module Body Control Unit FEM ECU 9314229

€284.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5A0FAD6

BMW i4 G26 Hybrid Electric Earth Ground Cable Negative Battery Lead 5A0FAD6

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9353743

Junction Box Terminal BMW G11 G12 G30 Power Battery Distribution 9353743

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9234606

BMW X5 E70 X6 E71 Camera Based System Control Unit Module 9234606

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8645325-1

BMW F20 F30 F32 F33 F34 B38 B48 Petrol Engine Alternator Generator 180A 8645325

€37.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5A3BC98-1

BMW G20 LCI Rear Outer Light Lamp Side Panel Wiring Cable Right O/S 5A3BC98

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6996955

BMW G05 G20 G21 Plus Line B+ Jump Start Terminal Power Distribution 6996955

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7614084

BMW F20 F21 F22 F30 F31 F32 F33 Negative Battery Cable Lead Ground 7614084

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7561380

BMW X3 E83 3.0iX M54 231HP xDrive Engine Control Module ECU 7561380 Automatic

€165.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8475125-2

BMW X1 F48 Engine Control Unit ECU Kit 2.0 Diesel B47C20B 150HP Manual 8475125

€583.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9128982

BMW F20 F30 F31 LCI Mini F55 F56 Compensator LTE UK Control Unit Module 9128982

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7843335

BMW F10 M5 F12 M6 Engine Wiring Harness Valvetronic Servomotor Cyl.1-4 7843335

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8577839-1

BMW F32 F33 430d N57N 258HP Engine ECU DDE Kit 8577839 FEM + Key Automatic

€180.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9254766

BMW F12 F13 Front Bumper PDC Wiring Harness Loom Cable Adapter 9254766

€99.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5A22699

BMW F74 Gran Coupé Engine Computer Module Unit Mount Holder Bracket 5A22699

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8601245

Earth Ground Cable BMW i3 I01 Hybrid Rex Electric Engine Wiring 8601245

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6839769

KaFAS Module BMW F10 F20 F30 Mini F55 F56 Assist Camera Control Unit 6839769

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9123038-1

BMW E81 E87 E91 Switch Cluster Cruise Control Stalk Unit 9123038

€194.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8642652

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

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8517015-1

BMW X5 E70 X6 E71 30dX Diesel N57 245HP ECU Kit DDE 8517015 CAS3 Key Automatic

€446.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6962720

BMW 7 Series E65 Light Control Module Unit Lear LM E6X DYN. LWR (LCM) 6962720

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

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