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 E87 ECU Body Control Module L2 ECU Junction Box 6971961

€23.95

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Part no. 9153802

BMW X5 E70 Footwell Light Module Control Unit ECU FRM II NSW Lear 9153802

€146.95

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Part no. 6901469

BMW E60 E87 E90 F10 F30 Relay Electrical Unit Black 4 Pin Tyco 6901469

€23.95

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BMW F20 F21 F22 F30 F32 LCI Integrated Supply Module Unit 8638551

€23.95

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BMW X3 Z4 E83 E85 E86 Radio Business CD Player Control Unit 9146710

€94.95

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Mini Cooper One R55 R56 Electrical System Fuse Distribution Box 3449504

€23.95

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BMW 1 3 X1 SERIES E81 E87 E90 Control Unit Airbag ECU NO CRASH DATA 6964607

€23.95

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Part no. A6394460446

Mercedes Vito W639 PDC Parking Distance Control Unit Module ECU A6394460446

€32.95

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Part no. 9244426

BMW X5 E70 Rear Bumper PDC Cables Wiring Loom Set 9219647

€56.95

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Part no. 9807169

Mini Cooper One R56 R55 R58 R60 R61 Air Module Control Unit ECU 9807169

€23.95

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Part no. 9387262

FEM Module BMW F20 F21 F22 F30 F31 F32 F36 Body Control Unit ECU LR01 9387262

€94.95

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Part no. 9177975

BMW Mini Cooper One R55 R56 R57 Power Folding Wing Mirror Module ECU Control

€23.95

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Part no. 7P0907652

Yaw Sensor Audi Q7 4L Rotation Rate Unit Module 7P0907652

€23.95

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Part no. 5Q0971250N

Audi A3 8V Volkswagen VW Golf Mk7 Negative Cable Ground Wire Harness 5Q0971250N

€23.95

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Part no. 7793201

BMW 3 X5 X6 Series E70 E71 E90 E91 E92 E93 Lead Preheater System 7793201 Diesel

€23.95

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Part no. 1K0907530AA

Audi A3 8P Body Gateway Module ECU Control Unit 1K0907530AA

€23.95

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Part no. 1504536

Pressure Hose Mini Cooper One Cabrio R50 R52 R53 Compressor Condenser 1504536

€23.95

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Part no. 6858017

BMW F10 F11 LCI Control Unit EMF Module 6858017

€23.95

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Part no. 6C1T-14B056-AE

Ford Transit MK7 Air Module ECU Control Unit 6C1T14B056AE

€23.95

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Part no. 6927572

BMW X3 E83 Z4 E85 Wiring Seat Occupancy Cable 6927572

€23.95

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Part no. 4H0951253A-1

Seat Skoda Audi VW Polo Multi Use Control Relay 4 Pin 645 4H0951253A SET X2

€23.95

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Part no. 6R0959655K

VW Volkswagen Polo 6R Air Module Control Unit 6R0959655K

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Part no. A1719010100

Mercedes SLK R171 Heated Heating Seat Control Unit Module A1718201626

€47.95

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Part no. A2469009413-1

Mercedes W176 W246 Control Unit Body Control Module ECU A2469009413

€23.95

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Part no. 2755516

Battery Mounting Bracket Mini Cooper R55 R56 R57 R60 R61 Clamp Bolt Holder

€23.95

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Part no. 9381305

Radio Professional BMW F20 F21 F30 F31 CD Player DAB Bluetooth 9381305

€51.95

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Part no. 7127282

BMW X5 Series E70 Rear Trunk Battery Cover Tray Storage Box 7127282 51477127282

€23.95

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Body Control Unit BMW F20 F21 F30 F31 F32 Module REM 9374506

€32.95

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Part no. 9381104

FEM Module BMW F20 F21 F22 F30 F32 ECU Control Unit Fuse Box 9381104

€66.95

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Part no. A2038700026

Mercedes W203 ECU Control Unit Crash Impact Sensor Air Module A2038700026

€23.95

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Part no. 1472984-3

Mini R50 R52 R53 R55 R56 R57 R58 R59 R60 5-Pin Black Relay Wiper Set 1472984

€23.95

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Part no. A0038207726

Mercedes W212 Siren Alarm Horn Signal Module Unit A0038207726

€23.95

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Part no. 3C0937125A

Volkswagen Tiguan 5N Engine Bay Fuse Relay Box Terminal 3C0937125A

€23.95

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Part no. 9352864

FEM Module BMW F20 F21 F22 F30 F32 ECU Control Unit Fuse Box 9352864

€42.95

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Part no. 9278279

Mini R55 R56 LCI Instrument Cluster Speedo Navigation Display Screen 9278279

€99.95

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Part no. A0365457032

Mercedes C209 W211 CLS C219 Steering Wheel Module Control Unit A0365457032

€23.95

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Part no. 8200308271

Fuse Pink Mercedes W415 Citroen Renault Kangoo Trafic Relay 4-Pin 8200308271

€23.95

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Air Module BMW F01 F02 LCI F06 F10 F11 F13 ECU Control Unit ECU 9248096

€28.95

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Audi A4 B7 Door Speaker Tweeter Front Left Right N/O/S 8E0035411B

€23.95

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BMW E60 E87 E90 CAS 3 ECU Control Unit Key Reading Module 9237047

€23.95

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BMW 1 3 SERIES E81 E82 E87 E90 E91 E92 E93 Flat Cable Wiring Wire CAS Start Stop

€23.95

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Part no. 5Q0959593B

Audi A3 8V Door Module Control Unit Front Driver Side 5Q0959593B

€23.95

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Cable Wire BMW E60 E61 E81 E87 E90 Tubing For Clamp 7537365

€23.95

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BMW X3 F25 Central Gateway Module Control Unit Lear ZGW-02 4SK 9380334

€42.95

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Part no. 1K0907530Q

Gateway Module Audi A3 8P Volkswagen Golf Mk5 Control Unit 1K0907530Q

€23.95

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Part no. 1508927-1

Mini Cooper S R52 R53 Positive Battery Fuse Box Module B 6911180

€23.95

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Headlight Control Unit BMW F20 F21 F30 LCI Module FLE2 7492026

€23.95

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Part no. 9134666

Seat Module BMW E87 E90 E91 E92 Control Unit ECU 9134666

€23.95

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Part no. 7H0907655A

Audi TT 8J Yaw Rotary Rate Sensor Speed Cluster Sensor 7H0907655A

€23.95

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Part no. 8586540

BMW F30 F32 LCI 330d 430d N57N 258HP Engine Control Unit Module ECU DDE 8586540

€94.95

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Part no. 6977982

Mini Cooper R50 R56 R57 R60 Relay No Contact Taubenblau 6977982

€23.95

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Part no. 6981416

BMW E87 E90 E91 CAS 2 Control Unit ECU Key Reading Module 6981416

€23.95

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Part no. 9240943

Mini Cooper R55 R56 LCI R60 Electrical System Fuse Distribution Box 9240943

€23.95

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Part no. 9362395

BMW F20 F30 F31 F34 Electrical Body Control Unit Module REM V2 9362395

€42.95

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Part no. 9231175

Diversity Antenna Amplifier BMW F30 F32 Rear Window DAB Module Unit 9231175

€28.95

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Part no. 6988555

Light Control Panel BMW E60 E61 E70 E70 E71 LCi Light Switch 6988555

€23.95

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Part no. 3453954

Mini Cooper One R57 R58 Aerial Antenna Amplifier Diversity Module 3453954

€23.95

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Part no. 8583653

BMW F10 F30 F31 LCI N57N Wiring Harness Engine Glow Module 8583653

€23.95

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Part no. 9177773

BMW F01 F07 F10 F11 Battery Power B+ Distribution Box Rear 9177773

€23.95

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Part no. A2129004402

Door Module Mercedes W212 E-Class Front Left N/S Control Unit A2129004402

€23.95

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Part no. A2048706826

Mercedes W204 ECU Control Unit Sensor Module Air Unit A2048706826

€23.95

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Part no. A0009003704

Mercedes W204 W212 Tyre Pressure Check Monitor Control Unit Module A0009003704

€23.95

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Part no. 9337880

BMW F20 F22 F30 Rear Electric Power Distribution Fuse Box 9337880

€23.95

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Part no. A2059007218

Automatic Closing Motor Mercedes S205 Estate X253 Trunk Lid A2059007218

€28.95

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Part no. 9270035

Antenna Aerial Amplifier Mini F55 F56 F60 Rear AM/FM DAB 9270035

€23.95

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Part no. 7808074

BMW E70 LCI F10 Alternator Generator Engine 180A Valeo N57 Diesel 7803724

€94.95

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Part no. 7510738

Mini Cooper One R50 R52 R53 Ignition Coil Pack and Leads Set 2122435

€28.95

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Part no. 9306085

BMW F30 F31 Seat Module Control Unit Memory Front Left Right N/O/S 9306085

€47.95

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Part no. 9381445

Mini Cooper F55 F56 F57 IBS Negative Battery Lead Cable 9381445

€23.95

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Part no. 8V0035874B

Audi A3 8V Multimedia Radio Sat Nav CD Player Head Unit 8V0035874B

€237.95

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Part no. 9264923

BMW F01 F02 F10 F11 F13 Power Distribution Fuse Box Rear 9264923

€23.95

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Part no. 7515200

Mini Cooper R50 R52 R53 Battery Wire Cable Negative Earth Lead 7515200

€23.95

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Part no. 9346799

BMW F01 F02 LCI F10 Diversity Aerial Antenna Amplifier DAB 9346799

€23.95

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Part no. 4H0907601E

Audi S3 8Y 2.0 TFSI DNFF Petrol Engine Sound Noise Actuator 4H0907601E

€23.95

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Part no. A9075450100

Fuse Box Mercedes Sprinter W907 W910 Relay Box Fuse Box Module A9075450100

€37.95

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Part no. 6972678

BMW 1 3 Series E81 E87 E90 Hands-free Electronics Charging Module MULF 6972678

€23.95

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Part no. 9264573

BMW 3 Series E91 LCI ECU Body Control Module Junction Box H2 9264573

€37.95

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Part no. 4F0959793T

Audi Q7 4L Door Module Front Driver's Side Control Unit ECU 4F0959793T

€23.95

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Part no. 9254025

BMW 5 7 X3 X5 X6 Series F10 F11 E70 E71 F01 F02 F25 Rain Light Solar Sensor

€23.95

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Part no. 9251984

BMW F10 F11 F20 F21 F30 Control Unit Module Voltage Transformer VSU180 9233143

€23.95

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Part no. 7599881-9

BMW E87 LCI E90 118i 318i Petrol N43 143HP ECU Control Unit DME 7599881

€66.95

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Part no. 9233034-SCG

PDC Parking Sensor BMW X5 E70 F10 F11 F12 Ultrasonic Sensor Space Grey 9231283

€32.95

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Part no. A2229055804

Mercedes CLA C117 W176 W205 Aerial Antenna Amplifier Unit A2229055804

€23.95

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Part no. A0009063000

Alternator Generator Mercedes W204 W212 M271 Engine Valeo 150A 14V A0009063000

€94.95

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Part no. A6519062300

Starter Motor Mercedes W204 W212 OM651 Diesel Engine Starter A6519062300

€23.95

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Part no. 9462613

Camera Speed Control BMW i3 I01 F10 F20 F30 LCI KaFAS ECU Module Unit 9462613

€23.95

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Part no. 8570849

BMW F20 F21 F30 F31 LCI 116i 118i 318i B38 Petrol Engine Starter Motor 8570849

€23.95

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Mercedes W176 W246 W166 Windscreen Windshield Rain Sensor Unit A2469002603

€23.95

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BMW E60 E81 E87 E90 E91 X3 E83 Relay Changer Make Contact Salmon Red Set 1742690

€23.95

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Part no. A0009067500

Alternator Generator Mercedes W204 W212 Diesel Engine Valeo 180A 14V A0009067500

€66.95

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Part no. A2059007705

Module Mercedes C205 Transmission Drivetrain Control Module Unit A2059007705

€23.95

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Part no. 6943585

BMW E65 E66 E67 Control Electronics Seat Occupancy 6943585

€23.95

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Part no. 7592511

BMW E88 E90 E91 E92 LCI F20 F21 F30 Ignition Wiring N55 Engine Harness 7592511

€32.95

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Part no. 9304728

PDC Wiring BMW X3 F25 Front Bumper Loom Cable Harness Parking Sensors 9304728

€89.95

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Part no. A2465400340-1

Mercedes W176 Fuse Relay Box Unit A2465400340 A2469067200

€23.95

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Part no. 9317173

BMW F20 F21 F30 F31 REM Rear Electronic Module Fuse Box Control Unit V1 9317173

€32.95

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BMW 1 3 Series E87 E90 E91 E92 N43 Air Condition Con Pipe Hose Coolant 9119000

€23.95

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Audi A3 8V VW Volkswagen Golf VII PDC Park Assist Control Module Unit 5QA919294B

€23.95

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Mercedes W204 Air Module Impact Crash Sensor Door A2048210651

€23.95

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