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 E92 LCI Grille Trim Panel Chrome Frame Front Right O/S 7254970

€23.95

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Part no. A2465400950-1

Mercedes C117 W176 W246 Fuse Box Power Distribution Box A2465400950

€23.95

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Windscreen Camera Mercedes W204 W212 Front Windshield Camera Unit A0009050438

€23.95

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Mercedes CL203 M271 Automatic Gearbox EGS Control Module Unit ECU A0015454416

€37.95

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Mercedes W169 W245 Distributor Box Front Control Unit Module A0055461240

€23.95

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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. A2049005601

Mercedes W204 S204 Estate SAM Control Unit Module Rear A2049005601

€28.95

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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. 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

€66.95

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Part no. 9393186

Audio Amplifier BMW F30 F31 LCI F32 Top Hifi Harman Kardon Control Unit 9393186

€531.95

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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. 5QA919294G

Volkswagen Golf Mk7 PDC Parking Assist Distance Module Control Unit 5QA919294G

€23.95

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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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Part no. A9060034199

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

€23.95

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Part no. 7804110

BMW 5 Series F10 F11 LCI Earth Cable Battery Cable 7804110

€23.95

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Part no. 6983075

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

€23.95

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Part no. 4L0035382B

Audi Q7 4L Boot Trunk Subwoofer Rear Bass Speaker 4L0035382B

€23.95

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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

€54.95

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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. 7610011

BMW Mini Cooper S 1 R55 R56 R57 N14 1.6 ECU Kit DME CAS 3 Key 7610011 Manual

€379.95

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Part no. 9348361

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

€104.95

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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

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

€23.95

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Part no. A6269000000

Mercedes W205 C 200 d 626951 626.951 136HP Engine Unit ECU A6269000000 Automatic

€170.95

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

€32.95

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Audi A5 8T Stereo DAB CD Player Radio Receiver Head Unit 4G0035061N

€284.95

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

€28.95

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Part no. 8384525

BMW X5 Series E53 Electrical Power Distribution Fuse Box 8384525 6920648

€23.95

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Part no. 6799659

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

€23.95

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Part no. 9244161

BMW F01 F02 F03 F04 Head Unit Radio Media Player Navigation 9244161

€165.95

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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

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Part no. 8K0959663D

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

€23.95

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Part no. 02E911022H

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

€32.95

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Part no. A2115400008

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

€23.95

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Part no. 7576921

Mini Cooper R55 R56 R57 Mitsubishi Engine Alternator Generator Petrol 7576921

€28.95

Free delivery: Sep 14 – 15

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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: Sep 14 – 15

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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: Sep 14 – 15

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Part no. 2755095

Mini Clubman R55 Amplifier Holder System HiFi Stereo Audio 2755095

€23.95

Free delivery: Sep 14 – 15

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Part no. A9078200301

Mercedes W907 Radio Professional System Controller Head Unit A9078200301

€94.95

Free delivery: Sep 14 – 15

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Part no. A2229002014

Mercedes X253 Door Module Rear Right Control Unit A2229002014

€32.95

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Land Rover Freelander 2 L359 2.2 Alternator Support Bracket Mount 9661310080

€23.95

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BMW 7 Series E65 E66 E67 Steering Column Control Unit CIM Module

€23.95

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Part no. A0025428919

Relay Mercedes W176 W246 5-Pin Yellow Hella 12V A0025428919

€23.95

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Part no. 9348763

BMW 3 4 Series F30 F80 M3 F82 M4 Battery Cable Lead Positive Underfloor 9348763

€113.95

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Part no. 8510829-3

BMW E90 E91 LCI 320d N47N Engine Basic DDE 8510829 Control Unit Manual

€47.95

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Part no. 4G0971845A

Audi A6 C7 Fuse Relay Box Sam Control Module 4G0971845A

€23.95

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Part no. 9146651

BMW X5 X6 E70 E71 Board Monitor Sat Nav System Screen 8,8" 9146651

€66.95

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Part no. 3G0962243C

Volkswagen Seat Skoda Audi Tailgate Module Controller 3G0962243C

€32.95

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Part no. 9195956

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

€284.95

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Part no. 5QA919283B

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

€23.95

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Part no. 7M0951253A

Audi VW Volkswagen Seat Relay Unit Module 4 Pins 7M0951253A

€23.95

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Part no. A0009002126

AdBlue SCR Module Mercedes W907 W910 W447 Exhaust Gas Cleaning A0009002126

€56.95

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Part no. A1695420018-HBL

Parking Sensor Mercedes W169 Front Bumper Distance Parktronic Horizon Blue 391

€23.95

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Part no. A1635403110

Mercedes-Benz M ML W163 Rear Left Right Door Wiring Loom Harness A1635403233

€23.95

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Part no. 7857551

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

€23.95

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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

Free delivery: Sep 14 – 15

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Part no. 7615308

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

€23.95

Free delivery: Sep 14 – 15

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Part no. A2038700326

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

€28.95

Free delivery: Sep 14 – 15

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Part no. 8506199-2

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

€284.95

Free delivery: Sep 14 – 15

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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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Part no. 141951253B

Audi VW Volkswagen Seat Relay Unit Module 4 Pins 141951253B

€23.95

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Part no. 8T2035186P

Audi A4 B8 Radio Media Player Audio CD Head Unit Player Concert 8T2035186P

€42.95

Free delivery: Sep 14 – 15

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Part no. FX23-189E2-AC

Land Rover Discovery Sport L550 Auxiliary Heater Control Unit FX23-189E2-AC

€23.95

Free delivery: Sep 14 – 15

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

€23.95

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Part no. 6945145

BMW E60 E61 E63 Air Control Module Passenger Side Door 6945145

€23.95

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Part no. 6978265

BMW Z4 E85 E86 Roadster Interior Fuse Box 6978265

€23.95

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Part no. BK3112A650BB

Ford Transit MK8 2.2 TDCI Diesel Engine Control Unit Module ECU BK31-12A650-BB

€446.95

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SAM Module Mercedes W204 Control Unit Electrical Fuse Box Unit A2049060305

€23.95

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

€75.95

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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. 06H971627

Audi A5 8T 2.0 TFSI Petrol Fuel Injectors Wiring Cable Harness 06H971627

€32.95

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Part no. 8X0915181

Audi A4 B8 A5 8T TT Mk2 Negative Battery Terminal Cable Lead 8X0915181

€23.95

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Part no. 8T0919611-1

Audi A4 B8 Head Unit Media Player Controller Knob Switch Panel 8T0919611

€66.95

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Part no. 9267205-1

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

€23.95

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Part no. A0009063701

Mercedes W205 Alternator 14V/200A Valeo Diesel Engine M626 A0009063701

€161.95

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Part no. A2128203542

Tailgate Module Mercedes W204 W212 Boot Lid Locking ECU Control Unit A2128203542

€23.95

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Part no. 9267511

BMW X5 E70 Body Control Module Main Primary ECU Unit JBBFEIII R LP 9267511

€127.95

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BMW E65 E66 E67 Earth Ground Battery Strap Cable 7518610

€23.95

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