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 F30 LCI High-Voltage Battery Cover Support Housing Mount 8647296

€23.95

Part no. 8519671

BMW E90 E90 LCI E91 LCI E92 LCI N47D20C DDE Control Unit 2.0 Diesel 8512291

€42.95

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BMW F45 F46 Door Interior Lighting Wiring Harness Cable Front Left N/S 9354069

€28.95

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BMW F30 Door Wiring Loom Harness Cable Front Passenger's Side N/S 9259999

€28.95

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BMW X5 F15 40dX N57 313HP Engine Control Module ECU DDE Kit 8577862 FEM Key

€522.95

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BMW X5 F15 F85 Front Seat Wiring Loom Harness Cable 9364999

€80.95

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BMW F10 F11 Rear Bumper PDC Wiring Loom Cable Harness 9232527

€37.95

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BMW F20 F21 F30 F31 ECU ICM Plus Control Unit Module Airbag 6863389

€23.95

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BMW E63 E64 Start Stop Switch Wiring Harness Cable Loom Connector 6970090

€23.95

Part no. 5A17B00

BMW G20 Body Control Module BDC BDC-03 330i B48D B48B20B 2.0 Petrol 5A17B00

€180.95

Part no. 8654977

BMW X5 F15 N20 Petrol Sensor System Engine Wiring Harness Cable Loom 8654977

€175.95

Part no. 7604347

BMW F20 F30 F31 F32 Bracket Holder Power Distribution Control Unit 7604347

€23.95

Part no. 8589145-12

BMW F20 120d F30 LCI 320d B47 190HP Engine Unit ECU Kit DDE 8589145 Key + FEM

€336.95

Part no. 7182509

BMW E92 E93 Plug Socket Wire Bi-Xenon Headlight Headlamp Lamp Front Left N/S

€23.95

Part no. 5A2D553

Audio Receiver BMW F40 G22 G30 G31 X3 G01 DAB ECE Control Unit Module 5A2D553

€73.95

Part no. 9315080

BMW X3 F25 Window Lifter Switch Driver's Side Wiring Harness Loom Cable 9315080

€23.95

Part no. 9181454

BMW X1 E84 Aerial Antenna Noise Suppression Filter 9181454

€23.95

Part no. 6821407

High Voltage Cable BMW F45 Mini F60 Hybrid Harnes EDH 6821407

€37.95

Part no. 8619095

BMW i3 I01 Hybrid Electric Earth Ground Cable Negative Battery Lead 8619095

€23.95

Part no. 7311030-2

BMW F45 Rear Light Lamp Trim In The Side Panel Wiring Cable Right O/S 7311030

€23.95

Part no. 8585731

Engine Wiring BMW F30 F31 F36 N47N xDrive Automatic Gearbox Loom Harness 8585731

€75.95

Part no. 5B5D979

BMW F74 M235iX B48R 300HP Engine Control Unit ECU Set DME 5B5D979 Automatic

€731.95

Part no. 8517874-8

BMW F20 118d F30 318d N47N 143HP Engine ECU Kit DDE 8517874 + Key + FEM + Lock

€222.95

Part no. 9496815

Front Impact Sensor BMW F70 G05 G14 G15 G29 Safety Crash Module Unit 9496815

€23.95

Part no. 8689722-2

BMW F32 Engine ECU Control Unit 184 HP 420iX B48 2.0 Petrol B48 8689722 KIT

€550.95

Part no. 8835156

BMW U06 X1 U11 High-Voltage Battery Radiator Cooler Line Hose Tube Pipe 8835156

€560.95

Part no. 6928366-1

BMW E60 E61 Rear Bumper PDC Wiring Loom Cables Set 6928366

€23.95

Part no. 8727997

BMW F44 Gran Coupe Door Wiring Harness Rear Door Right Left N/O/S 8727996

€32.95

Part no. 9153137

BMW F01 F02 F03 Holder Bracket Control Unit Top Rear Side View 9153137

€23.95

Part no. 8632692

BMW X5 F15 N20 Petrol Wiring Harness Transmission Gearbox Module Cable 8632692

€175.95

Part no. 6926333

Door Cable BMW E93 Convertible Wiring Loom Front Cables Passenger Side 6926332

€23.95

Part no. 9366407

BMW F20 F21 F30 F31 F32 Body Comfort Module FEM ECU LR01 Control Unit 9366407

€161.95

Part no. 7639661

BMW F20 Alternator Engine Alternator Generator Denso 170A Petrol N55 7639661

€42.95

Part no. 7110854

BMW Z4 Series E85 Roadster Head Lamp Cleaning Device Container 7110854

€37.95

Part no. 9346258

BMW F10 F20 F30 F32 Anti Theft Alarm Siren Horn System 9346258

€23.95

Part no. 6960225

BMW E65 E66 E67 Sensor Vehicle Centre Air Control Unit Module 6960225

€23.95

Part no. 6956750

BMW E87 Control Unit PDC Parking Sensor Module Nautikblau Blue - A21 6956750

€23.95

Part no. 6825519

BMW X2 F39 F45 X1 F48 High Voltage Cable Cover Duct Bracket Channel 6825519

€28.95

Part no. 9284442

BMW F20 F30 Mini F56 Air Conditioning Module Control Unit 9284442

€32.95

Part no. 9211493

BMW E88 Convertible Roof Folding Top Control Module Unit 9211493

€23.95

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BMW Z4 E86 Alarm System Ultrasonic Roof Control Module 3428557

€42.95

Part no. 7640015-7

BMW E81 E82 E88 N43 118i 143HP Engine ECU DME Kit CAS3 Key 7640015 Automatic

€237.95

Part no. 5B7AB40

BMW F74 Gran Coupe Central Bass Speaker Right O/S 5B7AB40

€142.95

Part no. 8509035-1

BMW E60 LCI 530d X5 E70 3.0d M57N2 235HP Engine ECU KIT DDE 8509035 CAS3 + Key

€379.95

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BMW F06 F07 GT F11 F12 F13 Air Control Module Unit Controller 6866988

€99.95

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BMW X3 F25 Front Lamp Headlight Control Module Unit ECU 9387164

€113.95

Part no. 8793254

Door Wiring BMW X3 G01 F97 X4 G02 F98 Cable Harness Rear Left Right N/O/S

€23.95

Part no. 9384988

BMW F20 F45 F46 Kafas Camera Control Module Unit ECU 9384988

€23.95

Part no. 9247088

BMW X1 Series E84 Wiring Loom Harness Passenger Side 9233559

€23.95

Part no. 9118611

BMW Z4 E86 Hifi Audio Sound AMP Amplifier Module 9118611

€574.95

Part no. 8647878

BMW X5 F15 N20 Petrol Sensor System Engine Wiring Harness Cable Loom 8647878

€175.95

Part no. 9224177-1

BMW F10 F11 F12 F13 F15 F16 Air Module Crash Sensor 9224177

€23.95

Part no. 9128569-2

Wiring Harness BMW E81 E82 E87 LCI E88 Air Valve Air Flap Cable Wire 9128569

€23.95

Part no. 6863385

BMW F20 F21 F30 F31 ECU ICM Plus Control Unit Module Airbag 6863385

€28.95

Part no. 9297897

BMX X4 F26 X6 F16 Cental Woofer Speaker Audio Unit Left Right N/O/S 9297897

€28.95

Part no. 8574351-10

BMW X1 E84 18dX Diesel N47N Engine Control Unit ECU Kit Set DDE 8574351 Manual

€113.95

Part no. 8507360

Automatic Gearbox Wiring BMW F10 F11 530d N57 Engine Loom Harness Cables 8513823

€127.95

Part no. 8046454

BMW E81 E82 E87 E90 PDC Ultrasonic Sensor Front Rear Melbourne Red - A75 8046453

€23.95

Part no. 7795553

BMW E60 530d M57N 218HP ECU Engine Control Unit Automatic Diesel 3.0 7795553

€108.95

Part no. 5B8E985

BMW F74 Gran Coupé Body Comfort Control Unit Module 5B8E985

€232.95

Part no. 7424109-2

BMW F32 F33 F80 F82 F83 Headlamp Headlight Xenon Wiring Cable Left N/S 7424109

€23.95

Part no. 8380118

BMW E46 Amplifier Holder Audio Catch Bracket Mount Trim 8380118

€23.95

Part no. 9335289

BMW F20 Door Cable Harness Wiring Front Right O/S 9335289

€23.95

Part no. 9377155

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

€142.95

Part no. 2959574-2

BMW F36 Gran Coupe Headlight Height Level Sensor Rear Right O/S 2959574

€28.95

Part no. 8509226

BMW F31 Diesel Engine Alternator Generator 220A Valeo N57D30A 8509226

€94.95

Part no. 5B61812

BMW X1 U11 GPS Navigation Audio Radio Infotainment Head Unit Control 5B61812

€522.95

Part no. 6927275

BMW E60 E61 E65 E66 Seat Control Module Ecu Sensor 6927275

€23.95

Part no. 5A08053

BMW F40 BDC Body Control Module Unit 1.5 Petrol B38A15A 5A08053

€132.95

Part no. 9379832

BMW X3 F25 X4 F26 Door Wiring Loom Harness Cable Driver's Side 9379820

€23.95

Part no. 8517616

Earth Ground Cable BMW F10 N47N Diesel Battery Cable Engine Wiring 8517616

€23.95

Part no. 8716588

BMW G20 G21 G28 Door Wiring Loom Front Driver's Side 8716588

€47.95

Part no. 9379845

BMW X3 F25 X4 F26 Door Wiring Loom Harness Cable Passenger's Side 9379834

€42.95

Part no. 8590019

BMW G30 G31 Engine Wiring Harness Supply Line Cable 530d B57 Diesel 8590019

€142.95

Part no. 6938664

BMW E65 E66 Control Unit Front Centre Console Module 6938664

€23.95

Part no. 6824129

Inverter Wiring BMW F45 Mini F60 Hybrid High Voltage Battery Cable Loom 6824129

€70.95

Part no. 8582280-12

BMW F20 F21 116d N47N 117HP Engine Control ECU Kit DDE 8582280 Manual

€284.95

Part no. 6957913

BMW Z4 E85 Fuse Box Modue Unit Bracket Mount Holder Retainer Support 6957913

€23.95

Part no. 9337183

BMW F32 Boot Trunk Tailgate Wiring Loom Harness Cable Wire 9337183

€51.95

Part no. 9119578-1

BMW Z4 E85 E86 Antenna Amplifier Rod Antenna Control Unit Module 9119578

€28.95

Part no. 9855653

BMW F40 F74 F78 Power Distribution Box Mount Bracket Holder 9855653

€28.95

Part no. 9200944

BMW 3 X1 E84 E91 Ultra Sonic Burglar Alarm System Sensor Module 9200944

€23.95

Part no. 8707752

BMW F20 F32 FEM Control Module Unit ECU 8707752

€203.95

Part no. 8621500

BMW F20 F21 F30 LCI Petrol N13 N20 Cable Alternator Starter Base B+ 8621500

€23.95

Part no. 5A088E1

BMW F40 Engine Control Unit Module ECU B38A15A 1.5 Petrol 140HP Manual 5A088E1

€132.95

Part no. 5A4A7B1

BMW G20 G21 LCI Rear Door Wiring Loom Harness Cable Left Right N/O/S 5A4A7B1

€23.95

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BMW X3 Series E83 E83 LCI B Terminal Point Luggage Compartment 6928945

€23.95

Part no. 6821408

High Voltage Cable BMW F45 Mini F60 Harness Wiring 6821408

€42.95

Part no. 9287265

BMW F10 M5 Active Sound Unit Control Module Design Amplifier 9287265

€89.95

Part no. 6842527

BMW G20 Battery Terminal Voltage Distribution Box 400W MID 6842527

€32.95

Part no. 2354701

BMW E60 E65 E70 E81 E87 E90 F10 Engine Starter Motor 2354701

€32.95

Part no. 7300268-2

Rear Lamp BMW F01 F02 LCI Saloon Light Side Panel Right O/S Harness Wire 7300268

€23.95

Part no. 8516753-1

BMW F01 730d F07 530d N57 245HP Engine Unit ECU Kit DDE 8516753 Automatic

€180.95

Part no. 9261095

BMW 7 Series F01 F02 LCI Antenna Aerial Noise Suppression Filter 9261095

€23.95

Part no. 8519005-2

BMW X1 E84 18dX Diesel N47N 143HP Engine Unit ECU DDE 8519005 Automatic

€94.95

Part no. 8599189

BMW G11 740d B57 xDrive 320HP Engine Control Module ECU DDE 8599189 Automatic

€256.95

Part no. 9353270

BMW G11 G12 Trunk Bracket Holder Audio Boot Amplifier Mounting Mount 9353270

€32.95

Part no. 9393951

BMW F07 GT X3 F25 Rear View Camera ECU Control Unit Module 9393951

€94.95

Part no. 8652443

BMW F45 Wiring Harness Motor Sensor System Module 8652443

€42.95

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