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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Parktronic Module Mercedes W204 PDC Parking Sensors Control Unit A2049009201

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6950181

BMW E93 Aerial Antenna Amplifier Diversity Control Module 6950181 9187798

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6763735

BMW X5 E60 E81 E87 E90 E91 E92 Xenon Headlight Level Sensor

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 2753721

Mini R55 R56 Electric Window Lifter Actuator Motor Door Left N/S 2753721

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 3454346

Mini Cooper One R55 R56 R58 R60 R61 Airbag ECU Control Module 3454346

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7808073

BMW E90 E91 E92 E93 LCI Diesel N57 Alternator 150A 7808073 7805432

€42.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A0009057302

Windscreen Camera Mercedes W204 W212 Front Windshield Camera Unit A0009057302

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6775949

BMW E90 E91 E92 Longitudinal Dynamic Module Cruise Control 6775949

€161.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A1669056001

Battery Cable Mercedes W176 W246 Negative Lead Wiring Harness A1669056001

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 1K0937125A

Skoda Octavia II Engine Bay Fuse Box 1K0937125A

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 3416765

Mini Cooper One R56 Antenna Amplifier Aerial Diversity Module 3416765

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2059053414

Mercedes W205 Voltage Converter Regulator Control Module Unit A2059053414

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9148265

BMW E70 E87 E90 E91 E92 Seat Control Unit Module ECU 9148265

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6933242

Mini Cooper One R50 R52 R53 Side Air Module Control Unit 6933242

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A0009003101

Mercedes W204 W212 W221 Fuel Pump Module Control Unit A0009003101

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9214812

BMW E88 E93 LCI Air Module Control Unit ECU 9214812

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7316147

BMW F30 F31 F34 Headlight Module Xenon Headlamp Control Unit Lear TMS 7316147

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9226347

BMW E81 E90 LCI Business System Car Infotaiment Computer CIC 9226347

€85.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9168335

BMW X1 E84 Antenna Amplifier Diversity 868 MHZ 9168335

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A0025421119

Mercedes W163 W168 W203 W211 Relay 4-Pin Black Hella A0025421119

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9288770

BMW F20 F21 F22 Mid Range Sound Speaker Stereo HiFi 9288770

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9198302

BMW F10 F11 F20 F21 F30 F31 130A Electric Fan Motor Relay 9198302

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 8K0907063N

Audi A4 B8 Body Control Comfort Unit Module BCM Unit ECU 8K0907063N

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6843898

BMW F20 F21 F22 F30 F31 F32 Body Control Module Unit FEM ECU LR01 6843898

€66.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9279824

Body Control BMW F20 F21 F30 F31 F32 Unit Module REM 9279824

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9322120

BMW F30 F31 F32 F33 Central Information Display Screen 6,5" 9322120

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4F0035056B

Audi A6 C6 Head Unit Radio CD Player Control Unit Module 4F0035056B

€222.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9143135

BMW E87 E90 Central Bass Speaker HiFi System Professional Logic 7 L7 Left N/S

€51.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9240351

BMW X5 F20 F21 F30 E70 LCI Trunk Lid Reversing Camera Rear 9240351

€108.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9196938

BMW E93 Seat Control Module Unit ECU 9148266

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7169960

BMW E60 E63 E87 E90 Control Unit Sensor Fuel Pump ECU 7169960

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7661503

Battery Cable Relay BMW E60 E64 E82 E90 Electrical Unit 7661503

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A0009067702

Alternator Generator Mercedes W204 W207 W212 Engine Diesel 180A 14V A0009067702

€85.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7180427

Fuel Pump Module BMW E60 E81 E87 E90 E91 LCI Control Unit ECU 7180427

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A6519000601

Mercedes-Benz W906 313 CDI OM651 Diesel Engine Control Unit CRD ECU A6519000601

€123.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7614083

BMW F20 F21 F22 F30 F31 F32 LCI Earth Ground Cable Battery Wiring 7614083

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9213372

Mini Cooper One R55 R56 R58 Electrical System Fuse Distribution Box 9213372

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7521123

BMW E60 E65 X5 E70 E81 E87 E90 F20 X3 F25 F30 Starter Motor 7521123

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6858698

BMW F20 F21 F22 F30 F31 ECU ICM Plus Control Unit Module 6858698

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A0009007604

Adblue Module Mercedes W205 W213 W177 W907 SCR Control Unit EGR ECU A0009007604

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9196705-BLK

Mini Cooper R55 R56 R57 R58 R60 Rear PDC Ultrasonic Parking Sensor Black 9196705

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2129006318

Door Module Mercedes W204 W212 Front Left N/S Control Unit Module A2129006318

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2038201485

Mercedes W203 Door Control Module Front Right O/S A2038201485

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9186215

Audio Controller BMW E90 System Control Unit Module Navigation 9186215

€127.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9247472

BMW E87 LCI ECU Body Control Module Junction Box H2 PL2RR 9247472

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6943085

BMW E60 E61 Air Module ECU Control Unit Gateway Module 6943085

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7605060

BMW F20 F21 F30 LCI DENSO 170A Alternator Generator 7605060

€37.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A0009820212

Mercedes W176 W212 W246 Voltage Converter Inverter Power Distributor A0009820212

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A1715420123

PDC Display Mercedes W169 W211 Parking Distance Sensor Control Unit A1715420123

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9122500

BMW E81 E87 E90 E91 Control Unit Air Module ECU No Crash Data 9122500

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9138830

BMW E60 E61 E63 E64 LCi Fuse Box Power Distribution Rear 9138830

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9261606

BMW 1 2 F20 F21 F22 Rear Bumper PDC Ultrasonic Sensor Mineralweiss White A96

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 3453737

Mini R56 High SPEG M3 Fuse Distribution Box Electrical Control Unit 3453737

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7800167

BMW E70 LCI E90 E91 LCI F10 F11 N57 Lead Preheater Wiring System Diesel 7800167

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9210147

BMW F20 F30 Central Bass Speaker Stereo Subwoofer Left N/S 9210147

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9114135

BMW X5 X6 Series E70 E71 Power Distribution Fuse Box 9114135

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9284331-1

Mini R55 R56 R60 R61 Roof Operating Unit Light Switch 3455632

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A9079004105

Air Module Mercedes Sprinter W907 W910 Control Module ECU A9079004105

€85.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2129004014

Mercedes W204 W212 Front Door Module Control Unit Module Left N/S A2129004014

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9110258

BMW E81 E87 E90 E91 Control Unit Air Module ECU 9110258

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7592508

BMW X5 E70 E90 LCI F20 Engine Wiring N55 Valvetronic Servomotor Cable 7592508

€66.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6956746

BMW E81 E87 E90 LCI PDC Parking Ultrasonic Sensor Monaco Blue A35 6956746

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7621168

BMW F20 F21 F30 F31 Earth Cable Battery Engine N47N N13 7621168

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 3454345

Mini Cabrio R57 ECU Air Control Unit Module Controller 3454345

€85.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7796892

BMW E60 E61 X3 E83 X5 E70 X6 E71 Starter Motor Diesel 7796892

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6925330

Central Bass Speaker BMW E81 E87 E90 E91 E92 Stereo Audio Right O/S 6925330

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2125405710

Mercedes W212 PDC Wiring Parktronic Parking Sensor Cable Rear A2125405710

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7168154

Mini Clubman R55 LCI Wiper Motor Actuator Window Right Rear O/S 7168154

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9809354

Mini R55 R56 R60 R61 Air Module ECU Control Unit Module 9809354

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2129018508

Mercedes W212 Air Bag Control Unit ECU AirBag Sensor Module A2129011105

€28.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7H0907652A

Audi Q7 4L Yaw Rate Speed Sensor Module 7H0907652A

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A0055421918

Yaw Module Mercedes W204 Rotation Rate Acceleration Sensor A0055421918

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9251702

BMW 1 2 3 Series F20 F21 F22 F30 F31 F32 Connecting Wire Sat Nav Champ/Mask-CID

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6856980

BMW F01 F10 F11 F30 F31 AHK Towing Hitch Tow Bar Control Module Unit ECU 6856980

€108.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9279822

BMW F20 F21 F30 F31 F32 Rear Body Control Unit Module REM 9279822

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4G0907355G

Audi A7 4G8 3.0 TDI CZVA Adblue Control Module Unit ECU 4G0907355G

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9114342

Distance Control Sensor BMWE81 E87 E90 PDC Parking Sensor Montego Blue 9114342

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9134483

BMW E92 ECU Body Control Module Junction Box L1 PL2 JBBFE 9134483

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6962678

BMW E81 E87 E91 Switch Cluster Steering Column Wiper Stalk 6962678

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 5Q0971250N

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

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7490465

BMW F10 F20 F30 F31 Mini F55 F56 Seat Heating Module Control Unit ECU 7490465

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6G9T-14B192-AA-1

Ford Mondeo Transit Relay 4-Pin Black FoMoCo Unit 6G9T-14B192-AA SET X2

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 4F0915519

Volkswagen Polo Touareg Audi A4 A6 A7 A8 Battery Overload Protection 4F0915519

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9276099

BMW F01 F10 Diversity Aerial Antenna Amplifier Module DAB 9276099

€35.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 7587465-1

IBS Cable Mini R55 R56 R57 Negative Battery Lead Terminal Wiring Cable 7587465

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9229875

BMW 3 Series E90 LCI Body Control Module H1 PL2RR JBBFE IIIR 61359229875 9229875

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 3456995

Mini Cooper One R55 R56 R57 LCI R60 Radio Boost CD Player Unit Head 3456995

€237.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9177978

BMW E92 ECU Body Control Module Junction Box L1 PL2 JBBFE 9177978

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2125420018-TNG

Mercedes W204 Parking Sensor PDC Distance Front Tenorite Grey - 755 A2125420018

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A1719010100

Mercedes SLK R171 Heated Heating Seat Control Unit Module A1718201626

€47.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9185542

BMW X5 E70 CCC Radio CD Player Navigation 9185542

€237.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 6774040

BMW X3 E53 E60 E61 E64 E65 X5 E83 Power Steering Speed Sensor 6774040

€32.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9274570

BMW F20 Head Unit Navigation GPS Sat Nav Infotainment DAB High F10 F30 9274570

€113.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9276064

BMW X3 F25 Antenna Aerial Diversity Amplifier Unit 868 MHZ 9276064

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2048204697

Mercedes W204 Dashboard Dash Navigation Central Display Screen Monitor

€142.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9350995

BMW F10 F20 F30 Reversing Camera Rear View Control Unit 9350995

€51.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. A2711540802

Mercedes W203 W211 C209 M271 Petrol Alternator A2711540802

€56.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 3428715

MINI Cooper One R56 R55 R58 R60 R61 Airbag ECU Control Module 3428715

€23.95

Free delivery: Nov 12 – 13

If paid before 14:00

Part no. 9317872

BMW F20 F21 F22 F30 F31 Alpine CD Champ 2 Radio Player Head Unit 9323784

€42.95

Free delivery: Nov 12 – 13

If paid before 14:00

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