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 X3 F25 Central Gateway Module Control Unit Lear ZGW-02 4SK 8781328

€47.95

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BMW X5 E70 X6 F16 E71 X5 F15 Wiring Harness Seal Rubber Gasket 7171793

€23.95

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BMW 3 5 Series F10 F30 Control Unit Module Top Rear Side View Camera 9282424

€89.95

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BMW F20 F21 F30 F31 REM Rear Electronic Module Fuse Box Control Unit V3 9274023

€66.95

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BMW X1 E84 18dX Diesel N47N Engine Control Unit ECU Kit DDE 8519005 CAS3 Key

€85.95

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BMW 3 5 7 Series E36 E38 E90 E91 F10 F11 Change-Over Contact Relay Grey 1393415

€23.95

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BMW X3 F25 X4 F26 Central Gateway Control Module ECU Unit 9286952

€61.95

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BMW X5 E70 X6 E71 X6 E72 Map Fuse Box Grouping Diagram Card 9177784

€23.95

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BMW E60 E61 E63 Air Module ECU Control Unit Centre Vehicle Sensor 6946113

€37.95

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BMW F01 Wiring Loom Cable Harness 9211840

€28.95

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BMW F30 F31 F80 M3 F82 M4 Positive Battery Cable Plus Pole 9259425

€23.95

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BMW E60 E61 E87 LCI E81 E82 X1 E84 E90 E91 N47 Diesel Starter Motor 7798006

€23.95

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Fuse Box Holder BMW X5 F15 X6 F16 Control Unit Module Bracket Carrier 9265835

€23.95

Part no. 8585727

Wiring BMW F21 F30 F34 F36 Diesel N47N Engine Gearbox Module Harness 8585727

€32.95

Part no. 9797876

BMW X1 U11 Battery Trim Cover Mount Bracket 9797876

€42.95

Part no. 7311541

BMW 2 Series F22 F87 M2 Rear Third Stoplamp Stop Lamp Brake Light White 7311541

€23.95

Part no. 9167202

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

€23.95

Part no. 9496820

Crash Sensor BMW G20 G26 G80 Front Door Left Right N/O/S Air Impact Unit 9496820

€23.95

Part no. 8470176-8

BMW F30 320d ed B47 Engine Control Unit ECU 2.0 Diesel 163HP Manual 8470176 Set

€151.95

Part no. 8574352-3

BMW X1 E84 20d 20dX Diesel N47N Engine Control Unit ECU Kit DDE 8574352 CAS3 Key

€142.95

Part no. 9186571

BMW E90 LCI Wiring Loom Front Door Cable Wiring Harness Driver's Side 9186571

€23.95

Part no. 9377149

BMW 1 3 Series F20 F21 F30 F31 Telematic Control Unit Module 9377149

€23.95

Part no. 9296981

Battery Cable Mini F55 F56 BMW X2 F39 Diesel B37 Positive Cable Wiring 9296981

€32.95

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BMW X3 E83 LCi Earth Cable Flow Electric Battery Negative

€23.95

Part no. 9396830

BMW F06 F12 F13 E63 Antenna Module Multi band Antenna GPS TEL Left N/S 9396830

€23.95

Part no. 8576333-5

BMW F20 F30 120d 320d N47N 163HP Engine Control Unit ECU DDE 8576333 Manual

€56.95

Part no. 8509036-10

BMW E92 Engine Control Unit ECU Kit 3.0 Diesel M57N2 285HP Automatic 8509036

€450.95

Part no. A2055408012

Mercedes W205 Battery Lead Negative Wire Earth Cable A2055408012

€23.95

Part no. 9797818

BMW X1 U11 High-Voltage Accumulator Control Unit 9797818

€203.95

Part no. 8635811-1

BMW F20 F30 LCI 118i 318i B38 Engine Wiring Loom Harness Cables 8635811

€89.95

Part no. 6819653

BMW X5 F15 Fuse Box Front Body Control Module ECU BCM Unit 6819653

€23.95

Part no. 9178791

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

€23.95

Part no. 5A3AF30

BMW F40 F44 DAB Audio Receiver Module Harman Becker 5A3AF30

€108.95

Part no. 6803169

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

€23.95

Part no. 9145172

BMW E90 E91 E92 E93 LCI Battery Bracket Lower Section Box 9145172

€23.95

Part no. 9396828

Antenna Module BMW F06 F12 F13 E63 Rear Multi-band Antenna GPS TEL Right 9396828

€28.95

Part no. 8576333-3

BMW F20 F30 F32 120dX 320dX 420dX Diesel N47N 184HP ECU Kit DDE 8576333 Key FEM

€275.95

Part no. 9459673-1

Seat Module BMW X4 F26 F20 F30 Front Driver Side Control Unit ECU 9250421

€94.95

Part no. 8578945-2

BMW F20 F21 F30 F31 116d 316d N47N 116HP ECU Kit DDE 8578945 Key FEM Lock Manual

€341.95

Part no. 8584817

BMW G20 G21 G01 G02 Wiring Harness Engine Glow Plug Module 8584817

€28.95

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BMW X5 F15 Door Wiring Harness Light Package Adapter Cable 9323417

€28.95

Part no. 7541335-8

BMW X3 E83 M54 2.5i 192HP Engine Control Unit ECU DME 7541335 Manual

€237.95

Part no. 6956748

BMW E87 E90 E91 LCI PDC Ultrasonic Parking Sensor Tiefgruen Green A43 6956748

€23.95

Part no. 6942551

BMW E87 E90 E91 Front Left N/S Seat Lordosis Pad Adapter Lead Wiring

€23.95

Part no. 9232164

BMW X3 F25 Gateway Control Module Unit ECU 9232164

€32.95

Part no. 8485064

BMW G20 LCI Starter Motor Positive Battery Cable B48B20A Petrol 8485064G20

€23.95

Part no. 6938226

BMW 3 Series E90 E91 Cable Wiring Loom Rear Door Left Right 61126938226 6938249

€23.95

Part no. 9315130

Door Wiring Harness BMW F25 Rear Left Right Door N/O/S Wiring Loom 9315130

€28.95

Part no. 8571042

BMW X5 F15 Engine Wiring Harness Loom Wire Connector Cable 8571042

€332.95

Part no. 7948144

BMW F40 F44 Seat Occupancy Mat Control Unit Sensor 7948144

€23.95

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BMW E81 E87 E90 E91 E92 6-disc CD Changer without Magazine 9143439

€37.95

Part no. 9261614

BMW 1 2 Series F20 F21 F22 Rear Bumper PDC Ultrasonic Sensor Glacier Silver

€23.95

Part no. 6839355

BMW F44 Gran Coupe Antenna Amplifier Suppresion Filter 6839355

€23.95

Part no. 9184810

BMW X6 E71 Wiring Set Wash Water Container Cable Loom 9184810

€23.95

Part no. 6899320

BMW F40 F44 Steering Column Lock Control Module 6899320

€42.95

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BMW E60 E65 E70 Front Right Seat O/S Height Adjustment Drive 7075944

€23.95

Part no. 8574372-2

BMW F30 F32 330d 430d N57N Engine Control Unit ECU Kit DDE 8574372 Automatic

€161.95

Part no. 5A088E6-1

BMW F40 M135i xD B48 306HP Engine Control Unit ECU Kit DME 5A088E6 BDC Key

€731.95

Part no. 9176823

BMW X5 E70 Footwell Light Control Module Unit LEAR PL4 FRM II 9176823

€170.95

Part no. 8509757-1

BMW F07 530d F01 730d N57 245HP Engine ECU Kit DDE 8509757 CAS4 Key Automatic

€237.95

Part no. 9206936

BMW F12 Antenna Aerial Noise Suppression Filter Control Unit Right O/S 9206936

€23.95

Part no. 8859307

BMW X1 U11 Control Module Unit ECU 8859307

€56.95

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HiFi Audio Retrofit BMW E81 E87 E90 E91 E92 Connector Cable Wire

€28.95

Part no. 5A1CE34

BMW G20 330e B48X ECU Engine Control Unit Module 292HP 2.0 B48B20A 5A1CE34

€137.95

Part no. 8639595-2

BMW F30 320i F32 420i N20 184HP Engine ECU Control Unit DME 8639595 Automatic

€446.95

Part no. 9112463

BMW Z4 E46 E89 Mini R50 R52 Parking Control Module Unit PDC 9112463

€28.95

Part no. 8578945

BMW F20 F30 116d 316d N47N 116HP ECU Engine Contol Unit DDE 8578945 Automatic

€47.95

Part no. 8387541

BMW X5 E39 E53 Fuse Box Housing 8 Fold Voltage Regulator Boot 8387541

€23.95

Part no. 9296975

BMW X5 F15 Control Unit Bracket Boot Trunk Module Unit Mount Holder 9296975

€23.95

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BMW 5 Z4 Series 1 E34 E85 Base B Terminal Point Engine Compartment 7514342

€23.95

Part no. 9344677

BMW 2 3 Series F22 F80 M3 F82 M4 Wiring Loom Harness Rear Trunk Lid 9344677

€23.95

Part no. 7641649

BMW F10 F20 F30 N20 125i 328i 528i N20 Wiring Harness Engine Module 1 7641649

€85.95

Part no. 6955116-BAQ

BMW 1 3 Series E81 E82 E87 E88 E90 E91 Ultrasonic Sensor PDC Barriquerot 6955116

€23.95

Part no. 9251979

BMW X3 F25 Footwell Light Module Control Unit FRMIII 9251979

€61.95

Part no. 9210923

BMW F10 Front Seat Wiring Loom Electrical Cable Harness 9210923 9210922

€23.95

Part no. 8515491

BMW X3 F25 Battery Cable 30dX 35dX Wiring Alternator Starter Cable B+ 8515491

€37.95

Part no. 8377658

BMW X5 SERIES E53 TV amplifier 8377658

€23.95

Part no. 6935667-1

BMW Z4 Series E85 Roadster Battery Lead Positive Cable Plus Pole 6935667

€23.95

Part no. 6928369

BMW E60 Dashboard Solar Receiver Sensor Plug Socket Wiring 6928369

€23.95

Part no. 8635808-1

Engine Wiring BMW F20 F30 F31 LCI B38 Loom Module 2 Harness Cable 8635808

€75.95

Part no. 8517874-6

BMW F20 F21 116d N47N 116HP ECU Kit DDE 8517874 + Key + FEM + Lock Manual

€218.95

Part no. 9252813

BMW 5 7 Series F01 F02 F10 F11 Power Distribution Fuse Box Rear 9252813

€23.95

Part no. 5A57FC9-1

BMW F01 F06 F12 F12 LCI Radio Remote Control Car Key 868 MHZ 5A57FC9

€47.95

Part no. 7555185

E-Box Fan BMW X5 E70 X6 E71 Sunon Cooler PSD1205PIBX-A 13.5V 7555185

€23.95

Part no. 9137716-2

BMW E60 LCI E61 LCI Camera Lane Departure Warning Unit Module 9137716 5WK43789

€23.95

Part no. 8600358

BMW F20 F30 LCI MINI F55 F56 Integrated Relay Supply Module 8600358

€23.95

Part no. 9291954

BMW F20 F21 Front Door Wiring Harness Cable Right O/S 9291954

€28.95

Part no. 5A374F9

BMW F40 Radio CD Player Head Unit Navigation Sat Nav CIC Alpine 5A374F9

€450.95

Part no. 8736251

BMW X4M F98 X4 G02 X3 G01 Rear Fuse Box Power Distribution Fuse Box 8736251

€66.95

Part no. 7075944-2

BMW E60 E65 E70 Front Right Seat O/S Height Adjustment Drive 7075944

€23.95

Part no. 9282069

BMW 5 Series F10 F11 Cable Loom Front Driver's Door Wiring Harness 9255986

€23.95

Part no. 6937229

BMW E65 E66 Light Module Control Unit Left N/S 6937229

€32.95

Part no. 7290242-2

BMW E84 Bi-Xenon Headlight Light Lamp Front Right O/S Harness Loom Wire 7290242

€23.95

Part no. 9189905

BMW X5 E70 X6 E71 Safety Control Unit Air Module Bag ECU Bosch 9189905

€23.95

Part no. 6873418

BMW 1 2 Series F20 F21 F30 Brake Disc Protection Plate Front Right O/S 6873418

€23.95

Part no. 8578995-1

BMW F10 520d F20 320d N47N 184HP Engine Module Unit ECU DDE Kit 8578995 Key CAS4

€170.95

Part no. 8620771

BMW F20 F21 F30 F32 N55 Power Distribution Module Bracket Cover Carrier 8620771

€23.95

Part no. 6911024

BMW Z4 E85 E86 Battery Mounting Bracket Part Holder 6911024

€23.95

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BMW 3 X3 Series E46 E83 LCI Earth Cable Flow Electric Battery Negative 6919584

€23.95

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