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 F22 F30 F32 Antenna Amplifier AM FM Booster AMP 9231180

€28.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 8573257-1

BMW F20 F30 F32 120d 320d 420d Diesel N47N 184HP ECU Kit DDE 8573257 Automatic

€142.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 9273597

BMW F01 F10 F11 Audio Player Rear DVD Background ECE US Head Unit 9273597

€151.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 6960221

Airbag Module BMW E65 E66 Sensor B-pillar Left N/S Control Unit Air Bag 6960221

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 9265300

BMW 1 2 Series F20 F21 F22 F23 LCi Headlight Switch Control Element Light

€28.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 6916565

BMW 5 X5 Series E38 E39 E53 Hands-free Electronics Charging Module MOTOROLA

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 8632554

Fuse Box Cover BMW X3 G01 X4 G02 Trim Panel Lid Housing Bracket 8632554

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 1543906

BMW G30 G31 X3 G01 X4 G02 G11 G32 Control Unit SAS Module ECU 1543906

€99.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 9847111

BMW G30 SME BK2 Body Control Module Unit ECU 9847111

€189.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 6781462

BMW E60 E61 Active Steering Dynamic Drive Control Unit ECU 6781462

€275.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 8781328

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

€85.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 9282424

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

€89.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 9274023

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

€66.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 1393415

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

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 9286952

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

€61.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 7199894-3

BMW E90 E91 LCI Front Fog Light Wiring Harness Cable Plug Right O/S 7199894

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 9211840

BMW F01 Wiring Loom Cable Harness 9211840

€28.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 9265835

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

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 8585727

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

€32.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 7855481

BMW F90 M5 F92 M8 Oil Level Sensor Wiring Harness Loom Cable 7855481

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 9797876

BMW X1 U11 Battery Trim Cover Mount Bracket 9797876

€42.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 7311541

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

€23.95

Free delivery: Aug 10 – 11

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: Aug 10 – 11

If paid before 14:00

Part no. 9496820

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

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 9186571

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

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 9377149

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

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 9296981

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

€32.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 3402862

BMW X3 E83 LCi Earth Cable Flow Electric Battery Negative

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 9396830

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

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 8576333-5

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

€56.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 9797818

BMW X1 U11 High-Voltage Accumulator Control Unit 9797818

€203.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 6819653

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

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 9178791

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

€23.95

Free delivery: Aug 10 – 11

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: Aug 10 – 11

If paid before 14:00

Part no. 9145172

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

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 9396828

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

€28.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 8576333-3

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

€275.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 9459673-1

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

€94.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 8578945-2

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

€341.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 6989069-BS

BMW E53 E39 E60 E61 E83 PDC Ultrasonic Parking Sensor 4687921 Black Sapphire 475

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 8584817

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

€28.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 9323417

BMW X5 F15 Door Wiring Harness Light Package Adapter Cable 9323417

€28.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 6956748

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

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 9381086

Amplifier BMW F06 GT F10 F13 F15 Audi Control Unit Active Sound Design 9381086

€47.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 6942551

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

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 9232164

BMW X3 F25 Gateway Control Module Unit ECU 9232164

€32.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 8485064

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

€28.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 7456364

BMW F33 F83 M4 Convertible Folding Top Roof ECU Module Control Unit CTM 7456364

€66.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 6938226

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

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 9315130

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

€28.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 8571042

BMW X5 F15 Engine Wiring Harness Loom Wire Connector Cable 8571042

€332.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 7948144

BMW F40 F44 Seat Occupancy Mat Control Unit Sensor 7948144

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 9143439

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

€47.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 9261614

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

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 6839355

BMW F44 Gran Coupe Antenna Amplifier Suppresion Filter 6839355

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 9184810

BMW X6 E71 Wiring Set Wash Water Container Cable Loom 9184810

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 7401878

BMW F30 F31 LCI Front LED Headlight Vertical Actuator Left Right N/O/S 7401878

€37.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 7075944-3

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

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 8574372-2

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

€161.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 5A088E6-1

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

€731.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 9176823

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

€170.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 8509757-1

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

€237.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 9206936

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

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 8859307

BMW X1 U11 Control Module Unit ECU 8859307

€56.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 0445684-3

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

€28.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 8639595-2

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

€446.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 9112463

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

€28.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 8578945

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

€47.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 8387541

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

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 9296975

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

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 7514342-1

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

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 7641649

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

€85.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 6955116-BAQ

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

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 9251979

BMW X3 F25 Footwell Light Module Control Unit FRMIII 9251979

€61.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 9210923

BMW F10 Front Seat Wiring Loom Electrical Cable Harness 9210923 9210922

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 8515491

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

€37.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 8377658

BMW X5 SERIES E53 TV amplifier 8377658

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 6935667-1

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

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 9308369

BMW Z4 E89 Light Footwell Control Module Unit 9308369

€42.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 6928369

BMW E60 Dashboard Solar Receiver Sensor Plug Socket Wiring 6928369

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 8635808-1

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

€75.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 8517874-6

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

€218.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 9252813

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

€28.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 6942430

BMW Z4 E85 E86 Tilt Sirene Speaker Alarm With Inclination Indicator 6942430

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 5A21BF0

BMW F20 F21 F30 LCI F36 B48 184HP Engine Control ECU DME 5A21BF0 Automatic

€222.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 8600358

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

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 9291954

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

€28.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 5A374F9

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

€450.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 8736251

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

€66.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 7075944-2

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

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 9282069

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

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 6937229

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

€32.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 9189905

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

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 8620771

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

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 6911024

BMW Z4 E85 E86 Battery Mounting Bracket Part Holder 6911024

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 3451658

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

€23.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 8844293

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

€51.95

Free delivery: Aug 10 – 11

If paid before 14:00

Part no. 913463601

Seat Module BMW E65 Front Seat Control Unit Module ECU 913463601

€32.95

Free delivery: Aug 10 – 11

If paid before 14:00

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