What is a car electrical system?

This is a set of components responsible for powering and controlling all electrical functions in the car – from engine starting to multimedia.

What is an alternator for in a car?

The alternator generates electrical current when the engine is running and charges the battery.

What is the difference between a starter and an alternator?

The starter motor is used solely to start the engine, while the alternator is responsible for generating energy while driving.

How to check if the battery is working?

Just measure its voltage – a healthy battery should have approximately 12.6 V at rest and maintain a voltage above 10 V during cranking.

What are the most common symptoms of car electrical failure?

Problems starting the engine, flashing warning lights, power windows not working or dimming lights.

Do electrical parts from one model fit another?

Sometimes yes, but the key is to match it by VIN or OEM number – this guarantees compatibility.

How often should you check your electrical system?

It is worth performing basic diagnostics (battery, alternator) at least once a year or before a long trip.

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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Products in promotion

Part no. 8574372

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

PLN 759.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9266410

BMW X3 F25 X4 F26 Central Gateway Module Control Unit Lear ZGW-02 9266410

PLN 142.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9324779

BMW F20 F21 F22 F30 F31 F32 F36 Module Control Unit FEM LR-01 9324779

PLN 474.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9296981

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

PLN 61.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9177978

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

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 8635811-1

BMW F20 F30 LCI 118i 318i B38 Engine Wiring Loom Harness Cables 8635811

PLN 332.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 6819334

BMW F20 F21 F30 F31 REM Rear Electronic Module Fuse Box Control Unit V3 6819334

PLN 142.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9222874

BMW E60 E61 Professional Navigation System CIC Sat Nav Controller 9222874

PLN 1,899.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 8506444-3

BMW E90 E91 LCI E92 330d Diesel N57 245HP ECU Engine Kit DDE 8506444 CAS3 + Key

PLN 1,044.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 6949226-1

2 x BMW E63 E64 DWA Door Alarm System Module Control Unit Set 6949226

PLN 47.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 8267406

Headrest Adjustment BMW E46 E64 Front Right O/S Seat Actuator 8267406

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 6961134

BMW 3 Series E90 Xenon Footwell Light Module Control Unit ECU PL2 FRMFA 6961134

PLN 379.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 6951629

BMW Z4 X3 E83 E85 Mini R50 DVD GPS Navigation System Computer 6951629

PLN 854.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9374508

BMW F20 F21 F30 F31 REM Rear Electronic Module Fuse Box Control Unit V3 9374508

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 6964263

BMW 3 Series E93 E93N Cabrio Module Bracket Holder CTM 6964263

PLN 46.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 6854856

BMW F10 F11 F12 EMF Module Parking Brake Unit Electric Control 6854856

PLN 70.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 7615308

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

PLN 85.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 7801711-1

BMW X3 E83 2.0d M47N2 Engine Control Unit Module ECU DDE 7801711 Manual

PLN 949.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9252813

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

PLN 47.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 6864208

BMW F20 F21 F22 F30 F31 Air Module ECU ICM Control Unit 6864208

PLN 61.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 6993311

Seat Module BMW F20 F32 F33 Control Unit Front Left Right N/O/S 6993311

PLN 522.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9339274

CAS4 Module BMW F01 F07 F10 F11 F12 X3 F25 Key Reading Control Unit 9339274

PLN 284.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9116542

BMW E39 X5 E53 X3 E83 PDC Parking Distance Control Unit Active Module 9116542

PLN 94.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 7794911

BMW E87 E90 E91 Cable Alternator Starter Base B 7794911

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 9119446

BMW E81 X1 E84 E87 E90 E91 E92 Fuse Box Power Distribution Unit Front 9119446

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 9321879

BMW F10 LCI Body Control Module Gateway ECU 9321879

PLN 94.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 8512499-12

BMW X1 E84 xDrive 18d N47 143HP Engine Unit ECU DDE 8512499

PLN 189.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9194824

BMW Z4 E89 Convertible Roadster Air Module ECU Control Unit 9194824

PLN 332.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 8578946-3

BMW F20 F30 F32 120d 320d 420d 184HP N47N Engine ECU Kit DDE 8578946 Automatic

PLN 569.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 7570254

Plus Cable BMW X1 E81 E87 E90 E91 N45 N46 Alternator Starter Wiring 7570254

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 8473167

BMW F30 F31 F32 LCI 330dX N57N Engine Gearbox Module Wiring Cable Loom 8578498

PLN 142.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 6772102

BMW X5 X6 E70 E71 Holder Bracket Actuator Unit 6772102

PLN 47.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 7605076

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

PLN 313.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9196937

BMW E93 Convertible Seat Control Unit Module ECU 9196937 FSV 7.14.0

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 6905950

BMW X5 Series E53 Spoiler Dualband Antenna Amplifier Aerial 6905950

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 8518569-5

BMW F20 F21 F30 F31 N47N 118d 318d 143HP Engine Control ECU DDE 8518569 Manual

PLN 332.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9205930

BMW E92 Telematics Bluetooth Control Unit Module 9205930

PLN 61.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 7516404

BMW E60 Cable Starter Generator Alternator B+ Base Wire Harness 7516404

PLN 94.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 7199997

BMW Z4 E85 Roadster Cabrio Convertible Roof Folding Top Module Unit 7199997

PLN 237.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 6985748

BMW 5 Series E60 E61 Centre Console Switch Centre DTC PDC 6985748

PLN 28.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 6926358

BMW E87 E90 E91 E92 Front Seat Module Control Unit ECU 6926358

PLN 75.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9257366

BMW 5 7 Series F01 F10 LCI Aerial Antenna Amplifier Diversity 868 MHZ 9257366

PLN 170.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9348358

BMW E60 Body Comfort Control Unit DDE Module ECU 9348358

PLN 427.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 3427743

BMW X3 Series E83 Wiring Drivers Side Loom Front Door Cables Right O/S 3427743

PLN 47.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 6882969

BMW F20 F21 F30 F31 ECU ICM Plus Control Unit Module Air Module 6882969

PLN 142.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 7641659

Engine Wiring BMW F10 F20 F30 N20 125i 328i 528i N20 Harness Module 7641659

PLN 427.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 6944104

BMW X5 E53 Receiver Heating Remote Control 6944104 70545B

PLN 61.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 6956744

BMW 1 3 Series E81 E82 E87 E88 E90 E91 Ultrasonic Sensor PDC Sydney Blue 6956744

PLN 27.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 9247067

BMW X3 F25 Footwell Light Module Control Unit ECU FRM3 9247067

PLN 379.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 6964139

BMW 7 Series E65 E66 E67 Front Control Unit Door Passenger Side 6964139

PLN 94.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 8574102

BMW F20 F21 F30 F31 F32 Starter Motor Engine Actuator N47N Diesel 8574102

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 9296494

BMW F20 F21 F22 F30 F31 F32 Control Unit Airbag Ecu 9296494

PLN 179.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9315897

BMW 3 4 Series F30 F31 F32 Rear Bumper PDC Cables Wiring Loom Set 9315897

PLN 189.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 6939287

BMW E60 E61 E63 Air Module ECU Control Unit Centre Vehicle Sensor 6939287

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 9359799

BMW i3 I01 F10 F20 F30 LCI KaFAS Camera Speed Control ECU Module Unit 9359799

PLN 112.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 7631587

BMW 1 3 X5 Series E53 E81 E87 E90 LCI Battery Mounting Bracket Clamp Bolt Holder

PLN 61.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9286156

BMW X3 F25 Footwell Light Module Control Unit ECU FRM3 9286156

PLN 61.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 6980078

BMW E88 Antenna Amplifier Aerial Diversity Module AMP 6980078

PLN 113.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 6935597-TS1

BMW E81 E87 Front Rear Parking Sensor PDC Titansilber Silver 354 6935597

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 1440315

BMW X5 Series E53 Wiring Loom Harness Engine Gearbox Module Petrol M62 Automatic

PLN 208.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 8586572

Engine Wiring BMW F20 LCI F30 F31 B47 Automatic Gearbox Loom Harness 8586572

PLN 142.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 6807487

Fuse Box BMW G20 X3 G01 Power Distribution Control Unit Module Front 6807487

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 9861558-1

Rain Sensor BMW F20 F21 F30 F31 Windscreen Light Solar Condensation Unit 9861558

PLN 189.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9142218

BMW X3 E83 LCI PDC Parking Ultrasonic Sensor Silver Grey 9142218 9139866

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 9187536

BMW 3 Series E90N E90 LCI ECU Body Control Module H1 61359187536 9187536

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 7789225

BMW E65 E66 730d M57N Diesel Cable Starter-Base B+ 7789225

PLN 66.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9214812

BMW E88 E93 LCI Air Module Control Unit ECU 9214812

PLN 142.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9350313

BMW F90 M5 G11 G30 Fuse Box Power Distribution Unit Front Right O/S 9350313

PLN 142.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9237055

Antenna Diversity BMW F07 GT Control Unit Module Aeral Amplifier 868 MHZ 9237055

PLN 170.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9134646

Seat Module BMW E65 E66 Front Seat Control Unit Module ECU 9134646

PLN 180.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 7856771

Injection Wiring BMW F90 M5 F91 M8 S63M Cyl. 1-4 Loom Valve Ignition 7856771

PLN 284.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9329702

BMW F20 F30 F31 REM Rear Electronic Module Fuse Box Control Unit V3 9329702

PLN 65.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 6858698

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

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 9805524-LW

Mini R60 Rear PDC Ultrasonic Parking Sensor Light White 9805524

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 8573257-7

BMW F30 F31 320d ed Diesel N47N 163HP ECU Kit DDE 8573257 + Key + FEM Automatic

PLN 522.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 6989112-SCH

BMW E60 E61 E83 Front PDC Parking Sensor Schwarz 2 Black 668

PLN 61.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9257160

Bluetooth Combox BMW E81 E87 E90 E91 LCI Telematics Module 9257160

PLN 246.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 6931687

BMW X5 E70 X6 E71 Fuse Box Power Distribution Electrical Unit Rear 6931687

PLN 61.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9299592

BMW F10 F11 Central Gateway Module ECU Control Unit Lear ZGW-02 4SK 9299592

PLN 142.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 8802918

BMW F20 F30 Mini F55 F56 Radio Remote Control Receiver 434 MHZ 8802918

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 8579478-4

BMW F20 F30 120d 320d Diesel N47N 184HP ECU Unit DDE 8579478 Automatic

PLN 189.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9181411

BMW F07 GT F10 F11 Hands Free Telephone Microphone Black 9181411

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 6821206

BMW F45 F46 F48 Battery Cable IBS Negative Battery Lead 6821206

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 6936655

BMW 1 3 X1 Series E81 E82 E84 E87 E90 E91 E92 Power Distribution Box 6936655

PLN 75.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 8519009

BMW X1 E84 20d 20dX Diesel N47N Engine Control Unit ECU DDE 8519009 Manual

PLN 379.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9312764

Body Control Module BMW F10 LCI ECU Junction Box PL6 JBBFE III V2 9312764

PLN 180.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9168336

BMW X1 E84 Diversity Aerial Antenna Amplifier DAB 9168336

PLN 94.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 6977427

BMW E87 E90 E91 Mini Cooper R50 R52 R53 Air Module Control Unit ECU 6977427

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 3412336

BMW X3 E83 Battery Cable Negative Wiring 3412336

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 9262871

BMW F01 Front Door Wiring Loom Cable Harness 9262871

PLN 142.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9218330

BMW E81 E87 E90 LCI E92 Navigation System Car Computer CIC 9218330

PLN 949.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9113355

BMW E87N E90 E91 Mini Cooper R56 DC/DC Torque Converter Wandler 9113355

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 9259800

BMW F10 F12 F13 F20 F30 F06 Mini F55 F56 F57 DVD CD Changer Control Unit 9259800

PLN 284.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 8574091-6

BMW F10 F11 520d N47N 184HP Engine ECU Kit Unit DDE 8574091 CAS4 + Key Manual

PLN 712.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 6934648

BMW X5 E70 E91 LCI Touring Tailgate Trap Circuit Aerial Amplifier 6934648

PLN 85.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 7567776

Starter Cable BMW E81 X1 E84 E87 E90 N52 Alternator Battery Wire B 7567776

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 7301554

BMW F10 F20 F30 F32 Control Unit For Fuel Pump 7301554

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 9361589

BMW 2 F45 Active Tourer Door Wiring Loom Harness Cable Driver's Side 9361600

PLN 142.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 6807395

Interface Control Module BMW F10 F20 F30 Bus Unit 120 OHM 6807395

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

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Showing 1090-1188 of 4686 products

Key components of vehicle electrical systems

Original electrical parts for popular car brands

A car's electrical system is a complex system responsible for many key functions—from engine starting to lighting and on-board electronics. Modern cars are equipped with increasingly advanced electrical solutions that not only improve driving comfort but also enhance safety. At the Global Parts automotive store you will find a wide range of used car parts , such as alternators, starters, batteries, control modules and other automotive electrical systems that perfectly fit BMW , Audi , Mercedes , Volkswagen , Mini and many others.

How does a car's electrical system work?

A car's electrical system is a complex system that consists of several key components that work together to ensure the vehicle's reliable operation:

Battery accessories – Includes clamps, cables, holders and other components necessary for battery installation and maintenance.

Electronic control modules and controllers – They control and manage the operation of various vehicle systems, such as the engine, air conditioning and ABS.
Alternators and generators – Responsible for generating electricity and charging the battery while the engine is running.
Parts for alternators and generators – Including voltage regulators, brushes and bearings that ensure proper operation of the alternator.
Starters – Key components of the starting system that enable the engine to be started.
Starter parts – Including bendixes, rotors and solenoids necessary for the proper operation of the starter.
Batteries – They store the electrical energy necessary to start the engine and power on-board systems.
Wires, harnesses and connectors – They transmit energy and electrical signals between various vehicle systems.
Fuses and fuse boxes – Protect the electrical system against overloads and short circuits.
Relays – They control the flow of current in individual electrical circuits of the vehicle. A functioning electrical system is the basis for the reliability of your car, regardless of operating conditions.

Key technical parameters of electrical systems

Each of these components has specific technical parameters that determine its compatibility with the vehicle. For example, alternators installed in mid-range cars (e.g., Volkswagen Passat B6) typically have a capacity of 90 A to 140 A, while luxury vehicles (e.g., Mercedes S-Class) require alternators with a capacity exceeding 180 A. Starter motors vary in torque and operating voltage – the standard is 12 V, while 24 V starters are used in heavy-duty vehicles.

Why is it worth taking care of your car's electrical system?

Regular maintenance and replacement of electrical system components is key to reliability and road safety. Faulty components can lead to:

Problems starting the engine.
Failure of safety systems such as ABS or airbags.
Decreased efficiency of on-board equipment, e.g. lighting or air conditioning. At the Global Parts store we offer original used car parts , which have undergone detailed quality tests, ensuring their full functionality.

Symptoms of electrical system disruptions

In practice, electrical faults manifest themselves in a variety of ways. Drivers most often notice: dimming lights when parked, difficulty starting the engine, a voltage drop on the on-board computer, or air conditioning malfunctions. The table below presents typical correlations:

Symptom	Possible cause	Item to check
Difficulty starting the engine	Worn out starter or battery	Starter motor, battery
Dimming the lights	Inefficient alternator	Alternator, voltage regulator
Electric windows not working	Damaged relays or harness	Relays, wires

How to choose the right parts for your electrical system?

When choosing parts for the electrical system, such as alternators, starters or control modules, it is worth paying attention to:

Vehicle-specific fit – Every car make and model requires specific specifications. At Global Parts, you'll find parts that perfectly fit BMW , Audi , Mercedes , Volkswagen , Mini, and many more .
Technical condition – All used parts we offer are thoroughly checked to ensure their reliability.
Technical parameters – For example, alternators should have appropriate current output, adapted to the needs of your vehicle.

Compatibility and fit

The selection of electrical parts is based primarily on OEM part numbers, but matching them to specific parameters is equally important, including current, voltage, and the number of connector pins. For example, the 120A alternator used in the Audi A4 B7 differs significantly from the 150A version installed in the Audi A6 C6 . Therefore, using manufacturer catalogs or providing the VIN makes finding the right component much easier.

Why choose used electrical parts?

Purchase of used car parts This solution allows you to combine savings with quality. Why choose it?

Lower costs – Used alternators, starters and other parts are cheaper than new ones, but offer the same high quality.
Ecology – You support recycling and reduce waste by choosing used car parts .
Wide range – We offer electrical parts for the most popular car brands, so you can easily find what you need.

How to take care of your car's electrical system?

To ensure your electrical system operates reliably for years, it is worth remembering a few rules:

Regularly check the battery condition and charge level.
Take care of your cables and connectors – corrosion or damage can lead to voltage drops and failures.
Monitor the operation of the alternator and starter – early detection of problems will help avoid more serious breakdowns. If you have any problems, you will find the right car parts at Global Parts that will help restore your vehicle to full working order.

Step-by-step control procedures

Measure the battery voltage with a multimeter – the resting value should be approximately 12.6 V.
Check the charging voltage with the engine running – the correct range is 13.8–14.5 V.
Assess the condition of the wires and terminals – lack of corrosion and a firm seat are essential.
If in doubt, check the quiescent current consumption – it should not exceed 0.05–0.08 A.

FAQ - Frequently asked questions about electrical systems in cars

Question	Answer
What is a car electrical system?	This is a set of components responsible for powering and controlling all electrical functions in the car – from engine starting to multimedia.
What is an alternator for in a car?	The alternator generates electrical current when the engine is running and charges the battery.
What is the difference between a starter and an alternator?	The starter motor is used solely to start the engine, while the alternator is responsible for generating energy while driving.
How to check if the battery is working?	Just measure its voltage – a healthy battery should have approximately 12.6 V at rest and maintain a voltage above 10 V during cranking.
What are the most common symptoms of car electrical failure?	Problems starting the engine, flashing warning lights, power windows not working or dimming lights.
Do electrical parts from one model fit another?	Sometimes yes, but the key is to match it by VIN or OEM number – this guarantees compatibility.
How often should you check your electrical system?	It is worth performing basic diagnostics (battery, alternator) at least once a year or before a long trip.

Summary: Automotive electrical systems at Global Parts Automotive Store

Automotive electrical systems are the foundation of the reliability and comfort of every modern vehicle. By choosing the right parts, such as alternators, batteries, and control modules, you can ensure your car's full operational efficiency. The Global Parts automotive store invites you to browse our wide selection of original used car parts . Whether you're looking for car parts for BMW , Audi , Volkswagen , Mercedes, Mini , or others, you'll find them at competitive prices. We strive to ensure every customer finds the right parts for their car, and if you have any questions or concerns about selecting the right components, we're happy to help! Please contact us – we're here to help! For more information and interesting facts, visit our automotive blog .

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