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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Fuse Box Mercedes W213 S213 W238 Rear Electrical Control Unit Module A2135406200

€23.95

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Part no. 6864923

Air Module BMW F01 F02 LCI F07 GT F10 F11 F13 ECU Control Unit 6864923

€23.95

Free delivery: Nov 12 – 13

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Mercedes CLC-Class CL203 Rear Parking Sensor Wiring Loom Cable PDC A2034404532

€23.95

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Bluetooth Module Mercedes W176 W213 Control Unit Hands Free A2139008013

€23.95

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Part no. 7532966-2

BMW E81 E87 E90 E91 LCI Alternator Generator Lucas 150A 7532966

€61.95

Free delivery: Nov 12 – 13

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Door Module Mercedes W204 W212 Front Right O/S Control Unit VST A2128203785

€23.95

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Door Module Mercedes W204 W212 Rear Right O/S Control Unit Module A2129004414

€23.95

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Part no. A1779003806

Door Module Mercedes C118 W177 W247 Front Left N/S Control Unit A1779003806

€23.95

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Part no. 8518568-4

BMW F20 F30 F32 120d 320d 420d N47N 184HP Engine Unit ECU DDE 8518568 Automatic

€89.95

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EMF Actuator BMW F10 F12 Brake Caliper Parking Brake Unit Electric 6794618

€23.95

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Mercedes C117 W176 W246 Fuse Box Power Distribution Box A2465400950

€23.95

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Part no. A0009050438

Windscreen Camera Mercedes W204 W212 Front Windshield Camera Unit A0009050438

€23.95

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Part no. A0015454416

Mercedes CL203 M271 Automatic Gearbox EGS Control Module Unit ECU A0015454416

€37.95

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Part no. A2059009527

Mercedes W205 Air Module ICM SRS Control Unit ECU A2059009527

€47.95

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Mercedes W212 Media Interface Control Unit Module Communication A2049000300

€23.95

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Part no. 6933529

BMW 5 Series E60 E61 Centre Console Switch Centre DSC 6933529

€23.95

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Part no. 6842986

BMW F20 F30 F31 Mini F55 F56 F60 Control Unit Air Conditioning Module 6842986

€23.95

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Part no. 5Q0035874B

Skoda Octavia 5E MMI Multimedia SAT NAV Radio Stereo Head Unit 5Q0035874B

€270.95

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Part no. 9358302

Mini 1 2 3 Series F20 F21 F30 LCI F55 F56 Compensator LTE ECE 9358302

€23.95

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Part no. 8R0919604

Audi A5 8T Multimedia Radio Sat Nav Screen Display Head Unit 8R0919604

€23.95

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Part no. 1S0919275D-BLK

Audi Q3 8U PDC Parking Distance Control Sensor Black - Z9Y 1S0919275D

€23.95

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Part no. 9131649

Driver Seat Cable BMW E81 E82 E87 E88 Sensor Mat Wiring 9131649

€23.95

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Part no. 6949922

BMW 3 5 E46 E61 Touring Amplifier Soft Antenna Suppression Filter 6949922

€23.95

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Part no. 1Z0035111A

Skoda Octavia II Head Disc CD Changer Player Unit 1Z0035111A

€23.95

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Part no. 6799712

BMW F10 F11 ICM Management Control Unit Module DSC Brakes 6799712

€23.95

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Part no. A6549009400

Mercedes W447 W907 W910 Engine Control Unit Module ECU A6549009400

€180.95

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Part no. 8517874

BMW F20 F21 F30 116d 316d Diesel N47N Engine Control Unit ECU DDE 8517874 Manual

€32.95

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Part no. 9484301

BMW F45 X1 F48 Mini F54 F55 F56 Air Module Control Unit ECU 9484301

€42.95

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Part no. 6870277

Air Module BMW X5 F15 X6 F16 ECU ICM Control Unit 6870277

€47.95

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Mercedes-Benz Sprinter W906 Front Left N/S Door Wiring Loom Harness A9060005999

€23.95

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BMW 5 Series F10 F11 LCI Earth Cable Battery Cable 7804110

€23.95

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Mercedes W166 W176 Navigation Screen Head Unit Sat Nav Display A1669007814

€89.95

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BMW F01 F07 F10 F30 LCI Fan Motor For Amplifier Control Unit Module Controller

€23.95

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Part no. 9340339

BMW E90 Max Brose Footwell Light Module Control Unit ECU 9340339

€227.95

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Part no. 9111165-PB

BMW E81 E82 E87 E88 E90 E91 Ultrasonic Sensor PDC Platinbronze A53 9111165

€23.95

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Part no. 9313614

BMW F30 F31 F80 M3 Driver's Side Door Wiring Loom Cable 9313614

€51.95

Free delivery: Nov 12 – 13

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Part no. 9301522

BMW F01 F02 F07 F10 F11 CAS4 Control Unit Key Reading Module 9301522

€32.95

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Part no. A2045407135

Earth Ground Cable Mercedes W204 C207 Line Strap Battery Lead A2045407135

€23.95

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Part no. 8W0959595H

Audi A5 F5 Rear Door Control Module Unit ECU Left Right N/O/S 8W0959595H

€23.95

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Mercedes C292 Fuse Box Cover Trim Panel Lid Black A1665400182

€23.95

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Part no. 8580390

Engine Starter BMW F40 F46 F48 B47B B47D B48E Diesel Motor Actuator 8580390

€23.95

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Part no. A2649000700-3

Mercedes W205 C300 OM264.920 Engine Control Module ECU A2649000700 Automatic

€208.95

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Part no. 9348361

FEM Module BMW F20 F21 F22 F30 F32 ECU Control Unit Fuse Box 9348361

€61.95

Free delivery: Nov 12 – 13

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Part no. 7555188-1

BMW F01 F07 GT F10 F11 F12 F13 Control Unit Box Cover Cap 7555189

€23.95

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Part no. 9259425-1

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

€32.95

Free delivery: Nov 12 – 13

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Part no. 5Q0959592F

Door Module Audi A3 8V Volkswagen Golf 7 Control ECU Front Left N/S 5Q0959592F

€23.95

Free delivery: Nov 12 – 13

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Part no. 8625074

Engine Wiring Mini F55 F56 Cooper S Petrol B46 B48 Cable Loom Harness 8625074

€32.95

Free delivery: Nov 12 – 13

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Part no. 8K0907063DG

Audi Q5 8R Body Control Comfort Unit Module Unit 8K0907063DG

€28.95

Free delivery: Nov 12 – 13

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Part no. 8384525

BMW X5 Series E53 Electrical Power Distribution Fuse Box 8384525 6920648

€23.95

Free delivery: Nov 12 – 13

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Part no. 6799659

BMW F10 F11 ICM Module Integrated Chassis Management QL ES Control Unit 6799659

€23.95

Free delivery: Nov 12 – 13

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Part no. 8U0857273E

Audi Q3 S Line Multimedia Radio Sat Nav Screen Display Head Unit 8U0857273E

€37.95

Free delivery: Nov 12 – 13

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Part no. 8517862-5

BMW F10 F20 F30 520d 120d 320d N47N 184HP Engine Unit ECU DDE 8517862 Automatic

€56.95

Free delivery: Nov 12 – 13

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Part no. BM5T-18B955-BE

Ford Focus Mk3 Multifunction Screen Dashboard Multimedia Display BM5T-18B955-BE

€23.95

Free delivery: Nov 12 – 13

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Part no. 8K0959663D

Audi Q3 8U A3 8P A6 C7 Voltage Stabilizer Converter Control Module 8K0959663D

€23.95

Free delivery: Nov 12 – 13

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Audi S3 8Y 2.0 TFSI Starter Motor Engine Petrol 02E911022H

€32.95

Free delivery: Nov 12 – 13

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ABS Sensor Mercedes W211 C219 Front Brake Wiring Harness Right O/S A2115400006

€23.95

Free delivery: Nov 12 – 13

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Part no. 7619250

Alternator Bracket BMW F10 F20 F22 F30 F32 LCI G30 B47 Supporting Mount 7619250

€23.95

Free delivery: Nov 12 – 13

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Part no. 9296495

BMW F20 F21 F22 F30 F31 F33 F34 Air Module Control Unit ECU 9296495

€23.95

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Part no. A1718201726

Mercedes SLK R171 Seat Heated Heating Control Unit Module ECU A1718201726

€37.95

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Part no. 5M5T-14B192-BA

Land Rover Discovery 4 L319 Multi Use Control Module Relay 5M5T-14B192-BA Black

€23.95

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Part no. 9299594

Central Gateway BMW X3 F25 X4 F26 Module Control Unit Lear ZGW-02 4SK 9299594

€62.95

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Part no. A1179005800

Mercedes W176 Air Unit Module Belts System Control Unit ECU Bosch A1179005800

€42.95

Free delivery: Nov 12 – 13

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Part no. 2755095

Mini Clubman R55 Amplifier Holder System HiFi Stereo Audio 2755095

€23.95

Free delivery: Nov 12 – 13

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Part no. 1K0951605

VW Volkswagen Golf 5k Caddy 2K Alarm System Siren Anti-Theft Signal 1K0951605

€23.95

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Part no. A2229002014

Mercedes X253 Door Module Rear Right Control Unit A2229002014

€23.95

Free delivery: Nov 12 – 13

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Part no. 8K5907357

Audi A4 B8 Headlight Headlamp Range Control Unit Module 8K5907357

€23.95

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Part no. 8P0959655C

Audi A3 8P Air Module ECU Sensor Control Unit 8P0959655C

€23.95

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Part no. 6G9Q10K019AA

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€23.95

Free delivery: Nov 12 – 13

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€42.95

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Part no. A4159064900-1

Mercedes Citan W415 Alternator Generator OM607 Diesel Engine 150A 14V 231000026R

€66.95

Free delivery: Nov 12 – 13

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Audi A6 C7 Fuse Relay Box Sam Control Module 4G0971845A

€23.95

Free delivery: Nov 12 – 13

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Part no. 3G0962243C

Volkswagen Seat Skoda Audi Tailgate Module Controller 3G0962243C

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6805061

BMW F45 F46 Mini F55 F56 F57 Parking Assistant PDC Control Unit Module 6805061

€51.95

Free delivery: Nov 12 – 13

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Part no. 9195956

Mini Cooper R55 R56 R57 CCC Navigation Navi Sat Nav Head Unit 9195956

€284.95

Free delivery: Nov 12 – 13

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Part no. 9891438

BMW G20 G21 Door Interior LED Module Connector Light Rear Front 9891438

€23.95

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Part no. 5QA919283B

Skoda Octavia 5E III Park Parking Assist PDC Distance Control Module 5QA919283B

€23.95

Free delivery: Nov 12 – 13

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Part no. 7M0951253A

Audi VW Volkswagen Seat Relay Unit Module 4 Pins 7M0951253A

€23.95

Free delivery: Nov 12 – 13

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Part no. 7857551

Battery Cable BMW F80 M3 F82 M4 Wire Lead Positive Alternator Starter B+ 7857551

€23.95

Free delivery: Nov 12 – 13

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Part no. A2115458532

Mercedes W211 W219 Body Control Module Control Unit ECU A2115458532

€23.95

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Part no. 9217004-1

BMW X5 X6 E70 E71 Positive Battery Cable Wiring Plus Pole 9217004

€37.95

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Part no. 7615308

BMW F20 F21 F30 Petrol N13 Wiring Loom Harness Engine Gearbox Manual 7615308

€23.95

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Part no. 9214243

BMW F10 F11 Battery B+ Engine Compartment Terminal Point 9214243

€23.95

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Part no. A1679008711

Mercedes W205 Front Door Module Right O/S Control Unit ECU A1679008711

€23.95

Free delivery: Nov 12 – 13

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Mercedes CLC CL203 Front Left N/S Door Control Module Unit A2038700126

€28.95

Free delivery: Nov 12 – 13

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Part no. 8506199-2

BMW E60 E61 LCI 520d N47 Diesel Engine ECU Kit DDE CAS3 + Key 8506199

€284.95

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Part no. 7622980

Wiring Harness BMW F20 F21 F30 Motor Sensor System Module 2 7622980

€37.95

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Audi A3 8P Door Wiring Harness Loom Cabling Rear Left Right N/O/S 8P4971693AB

€23.95

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Part no. 141951253B

Audi VW Volkswagen Seat Relay Unit Module 4 Pins 141951253B

€23.95

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BMW 5 6 Series E60 E61 E63 E64 N52 Cable Alternator Starter Base B

€23.95

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Mini Cooper Clubman R55 R56 W16 1.6 Diesel Engine Starter Motor 7802945

€23.95

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BMW E60 E61 E63 Air Control Module Passenger Side Door 6945145

€23.95

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BMW F06 F10 F11 F12 F13 Wiring Harness Cable Engine Ignition Module N55 7605076

€61.95

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Audi A4 B9 A5 F5 Pressure Sensor Pedestrian Protection System 8W0959121B

€56.95

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BMW F10 Body Control Module Electronic Junction Box 9284272

€32.95

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Part no. 3457434-1

Mini Cooper One R55 R56 R57 LCI R60 Radio Boost CD Player Head Unit 3457434

€237.95

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€23.95

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Module BMW F10 Central Gateway Control Unit Module ZGW-01 High 9244261

€28.95

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BMW E87 LCI ECU Body Control Module Junction Box H2 PL2RR JBBFE IIIR 9267205

€23.95

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BMW F20 F23 F30 F34 F36 LCI Automatic Gearbox Wiring Loom Harness 8585935

€47.95

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