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 F10 F11 Body Control Comfort Module Unit Junction Box ECU 9353419

€23.95

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

€23.95

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€28.95

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€47.95

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

€23.95

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BMW X3 F25 Fuse Box Grouping Map Diagram Location 9315152

€23.95

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

€275.95

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

€56.95

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

€23.95

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

€23.95

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

€23.95

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

€61.95

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BMW E88 Cabrio ECU Body Control Module H3 Junction Box 9226333

€51.95

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BMW E93 Head Unit Radio Player Navigation Control Module 5A2BF31

€80.95

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

€23.95

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

€313.95

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BMW G20 LCI Positive Plus Battery Wiring Cable Loom 8711311

€32.95

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

€23.95

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BMW E60 E61 Centre Console Switch Centre DSC PDC 6944962

€23.95

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

€23.95

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

€23.95

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

€189.95

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

€37.95

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BMW 5 Series E61 Touring Diversity Aerial Antenna Suppression Filter 6953191

€23.95

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

€23.95

Part no. 9315685-1

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

€42.95

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

€32.95

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

€23.95

Part no. 6960218

BMW E65 Passenger Seat Air Module Sensor Control Unit SRS 6960218

€23.95

Part no. 8573258-12

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

€56.95

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

€28.95

Part no. 8582803-1

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

€218.95

Part no. 8844292

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

€51.95

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

€28.95

Part no. 8672514-1

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

€1,139.95

Part no. 9282285

BMW X3 F25 Central Gateway Module Control Unit ECU 9282285

€47.95

Part no. 9389658

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

€56.95

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

€23.95

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

€23.95

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

€23.95

Part no. 8585933

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

€113.95

Part no. 5A02362

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

€32.95

Part no. 6922262

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

€23.95

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BMW 7 Series E65 E66 Control Unit Door Rear Passenger Side

€23.95

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

€23.95

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BMW G20 G30 Engine Wiring Loom Harness Cable B48B20A 8482370

€56.95

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BMW 3 Series E90 E91 Bowden Cable Hood Mechanism 7060552

€23.95

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BMW F20 Front Electronic Module Body Control Unit FEM ECU 9314229

€284.95

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

€23.95

Part no. 9353743

Junction Box Terminal BMW G11 G12 G30 Power Battery Distribution 9353743

€28.95

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

€28.95

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

€37.95

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

€23.95

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

€23.95

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

€23.95

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

€165.95

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

€583.95

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

€28.95

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

€28.95

Part no. 8577839-1

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

€180.95

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

€32.95

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

€23.95

Part no. 6839769

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

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BMW E81 E87 E91 Switch Cluster Cruise Control Stalk Unit 9123038

€194.95

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

€23.95

Part no. 8517015-1

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

€446.95

Part no. 6962720

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

€23.95

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BMW X3 F25 Footwell Light Module Control Unit ECU FRM3 9247066

€66.95

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BMW E81 E84 E87 E88 E90 Ultra Sonic Module Alarm System 9149671

€23.95

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BMW F20 F21 F30 F31 Parking Distance Control Wiring Loom Harness 9357962

€47.95

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BMW E88 Cabrio Convertible Folding Hydraulic Hose Cylinders Left N/S 7190675

€113.95

Part no. 9313656-1

BMW 3 Series F30 F80 Boot Trunk Lid Tailgate Wiring Loom Harness Cable 9260012

€28.95

Part no. 8573260-5

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

€308.95

Part no. 9845632

BMW U06 X1 U11 F74 Ping Sensor Knock Sensor 220i B38N B38A15P Petrol 9845632

€23.95

Part no. 8506434-4

BMW E81 E84 E87 E90 LCI 18d 118d 318d N47 ECU Kit DDE 8506434 CAS3 Key Automatic

€251.95

Part no. 8638742

BMW G11 G12 G20 G30 Ground Line Battery Earth Cable Wire Cable 8638742

€32.95

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BMW F07 GT F10 F11 Hands Free Telephone Microphone Unit Black 9181411

€23.95

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BMW F25 Footwell Light Control Module ECU Unit FRM3 TEMIC 6992955

€113.95

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BMW F20 F21 F30 F31 F32 F45 Body Control Unit Module REM 9362398

€37.95

Part no. 9153418

BMW F10 F11 B Plus Distributor Front Battery Cable 9153418

€23.95

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BMW E65 Fuse Box Relay Unit Control Module Connector Box 8367094

€28.95

Part no. 8507921

BMW F20 F30 Engine Wiring Loom Harness Gearbox Module Manual N47S1 8507921

€241.95

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BMW 1 3 Series E81 E87 E90 E91 E92 Ultra Sonic Alarm System Module 9200943

€23.95

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BMW E90 E91 E92 LCI 325d Diesel N57 204HP ECU Engine Module DDE 8510221 Manual

€70.95

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BMW X3 E83 LCI 1.8d N47 Engine Control Unit ECU Kit Module DDE 8506373 EWS Key

€284.95

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BMW G30 G31 Fuse Distribution Box Holder Control Unit Bracket Carrier 9330542

€23.95

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BMW F10 F12 F20 F30 F31 F36 Telematics Communication Box Cover Lid 9267244

€32.95

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BMW E82 LCI Body Control Module Unit PL2RR JBBFE IIIR L1 9264568

€23.95

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BMW F01 F02 F04 F06 F07 F10 Front Power Distribution Fuse Box 9234421

€23.95

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BMW X5 X6 E70 E71 Rear Seat Console Entertainment DVD Display Screen 9166783

€284.95

Part no. 7565300-22

BMW E91 320i N46 Engine Control Unit ECU 150HP 2.0 Petrol Automatic 7565300

€332.95

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BMW F20 F21 125i N20 218HP ECU Control Unit Kit DDE 8617551 Key FEM Automatic

€474.95

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BMW E92 Seat Covering Panel Sports Left Right Thigh Support Cover Black Leather

€23.95

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BMW 1 3 Series E81 E82 E87N E88 E90 E91 E92 N43 Starter Motor

€28.95

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BMW F20 Front Right O/S Wiring Loom Harness Door O/S 9251711

€23.95

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Bmw X1 U11 Low Voltage Wiring Harness Cable Loom 8865048

€80.95

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BMW G11 G16 Z4 G29 Wireless Charger Charging Device Module Unit 5A0E550

€70.95

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BMW F20 F21 F30 116d 316d Diesel N47N Engine ECU DDE 8574095 Key Lock FEM Manual

€227.95

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BMW 3 Series F30 LCI 330e B48X High Voltage Cable Harness Loom Wiring 8649866

€85.95

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