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. 9165624

BMW E93 Air Module Control Unit Module ECU 9165624

PLN 61.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 1722094

Battery Cable BMW E36 E46 M43 M57 Starter Alternator Wiring Harness 1722094

PLN 94.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 6915327-1

BMW E46 E60 E81 E87 E90 E91 F10 F20 F30 2x Relay Make Contact Sky Blue 6915327

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 9118611

BMW Z4 E86 Hifi Audio Sound AMP Amplifier Module 9118611

PLN 2,374.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9231283-AZB

BMW E70 F10 F11 PDC Parking Sensor Ultrasonic Sensor Azurit Black - S34 9231283

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 7550975

BMW 1 3 Series E81 E82 E87N E88 E90 E91 E92 N43 Starter Motor

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 9313618

BMW 3 Series F30 F31 F80 M3 Front Rear Right O/S Wiring Loom Harness Cables Set

PLN 218.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9303543

BMW F20 F30 F31 Fuse Box Electrical Power Distribution 9303543

PLN 284.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 7476046

BMW F20 F21 F30 F31 Mini F55 F56 F57 Fuel Pump Module Control Unit ECU 7476046

PLN 66.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9474810

Air Module BMW G30 G31 X3 G01 X4 G02 SRS Control Unit ECU 9474810

PLN 188.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 7532878

BMW X5 E53 E60 E61 E63 E65 E70 Valvetronic VVT Control Unit Module 7532878

PLN 189.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9261614-1

BMW F20 F21 F22 Rear Bumper PDC Ultrasonic Sensor Glacier A83 Silver Set

PLN 94.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9348726

BMW F20 F21 F30 Air Module Control Unit 0285013626 9461918 9296494 6826983

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 8570442

Engine Wiring BMW F25 F26 2.0dX B47 Loom Module Harness Cable Automatic 8570442

PLN 94.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9267980

BMW F10 Fuse Location Diagram Map Fuse Grouping 9267980

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 8055326

BMW 3 4 Series F80 M3 F82 M4 LCI Fuel Tank Heat Insulation Plate 8055326

PLN 189.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9343304

BMW X5 F15 X4 F26 Antenna Aerial Diversity Trap Circuit Control Module 9343304

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 7857551

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

PLN 237.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9270491-BS

PDC Parking Sensor BMW E70 LCI F07 F25 Ultrasonic Black Sapphire 9216207

PLN 61.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 7542615

BMW 1 3 5 6 7 Z4 Series E87 E90 E60 E64 E65 E85 Power Distribution Box 7542615

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 8574352

BMW X1 E84 20d 20dX 184HP N47N Engine Control Unit ECU DDE 8574352 Automatic

PLN 1,709.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 7619250

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

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 9123739

BMW 1 3 5 7 Series E81 E87 E90 E91 E92 F01 USB USB Hub Audio Interface Module

PLN 46.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 6941445

BMW E63 E64 Bluetooth Cable Hands Free Telephone Microphone Unit 6941445

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 6989994

BMW E65 E66 E67 Control Unit Front Centre Console Module 6989994

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 9187011

BMW F01 F07 GT Console Lightning Centre LED Lamp Light Cable Wiring 9187011

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 6857300

Air Module BMW F01 F02 LCI F10 F11 F13 ICM Crash Control Unit ECU 6857300

PLN 108.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9154413-1

BMW E93 LCI Convertible GPS Antenna Aerial Unit Module 9154413

PLN 93.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 7595179

BMW E81 E87 LCI E90 E91 Petrol N43 Engine Control Unit ECU DME 7595179 Manual

PLN 332.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 7794908

Preheater System Lead BMW E87 E90 E91 Diesel 7794908

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 9128569-2

Wiring Harness BMW E81 E82 E87 LCI E88 Air Valve Air Flap Cable Wire 9128569

PLN 37.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 9389068

Fuse Box BMW F20 F21 F30 F31 F34 Power Distribution Front 9389068

PLN 94.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9252639

Parking Module BMW E81 E84 E87 E90 E91 Control Unit PDC 9252639

PLN 237.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9331207

BMW F20 CD DAB Radio Bluetooth Head Unit 9331207

PLN 113.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 7426094

BMW F83 M4 S55 Petrol Engine Fuel Pump Control Module Unit ECU 7426094

PLN 94.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 7237647

BMW E90 LCI F01 F10 F11 F20 F21 Control Unit Xenon Light 7237647

PLN 61.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 6923945

BMW 5 6 SERIES E60 E60N E61 E61N E63 B terminal point engine compartment 6923945

PLN 56.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 9351155

Control Panel BMW X3 F25 X4 F26 Radio Player High Audio Unit Module 9208591

PLN 237.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 6842986

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

PLN 56.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 6940763

BMW 7 Series E65 E66 E67 Ultra Sonic-Module 6940763

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 9367812

Active Sound Design Module BMW F20 F21 F30 Harman Becker Control Unit 9367812

PLN 284.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9196936

BMW 1 3 Series E87 E90 E91 E92 Seat Control Unit Module ECU 6926371

PLN 66.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9237085

BMW F10 F11 Cable Loom Door Passenger Side Wiring Harness 9240882

PLN 94.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9874189

BMW 1 3 Series F20 F30 MINI F56 Control Unit Air Conditioning Module 9284440

PLN 85.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 8678976

Engine Wiring Mini F56 BMW F40 Petrol B38C Valvetronic Servo Motor Harness

PLN 94.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9199305

KaFAS Camera BMW F10 F11 Rear View Control Unit Module 9199305

PLN 189.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9273630

BMW F13 Footwell Light Module Control Unit ECU FRM3 9273630

PLN 142.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 7579155

Engine Starter Motor BMW X5 E70 LCI F07 X6 E71 N55 Petrol Denso 7579155

PLN 94.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 8594489

BMW X1 F48 Mini F55 F56 F57 Battery Cable Starter-Base B+ 8594489

PLN 85.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9329704

BMW F20 F21 F30 F31 F32 Body Control Unit Module REM 9329704

PLN 85.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9148267

BMW 3 Series E93 Seat Control Unit Module FSV 7.11.0 9148267

PLN 398.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9353066

BMW F20 F21 F30 F31 Relay Cover Electric Fan Relay Cap 9353066

PLN 47.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 7127282

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

PLN 122.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9241974

Control Unit BMW F01 F02 F07 F10 F11 CAS4 Key Reading Module 9241974

PLN 189.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 3415607

BMW X3 E83 LCI Petrol N52N Cable Alternator Starter Base B+ 3415607

PLN 104.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 7115655-LMB

BMW X3 E60 E61 E83 Front PDC Parking Distance Sensor Le Mans Blau - 381

PLN 61.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 8795213

BMW F20 F21 F30 F31 Wire Cable Screen Connector Monitor Display 8795213 8795212

PLN 189.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 7843349

BMW F10 F11 LCI M5 F06 F13 M6 S63N Cable Alternator Starter Base B+ 7843349

PLN 151.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 5A70A69

BMW F40 Parking Module Comfort Control Unit ECU 5A70A69

PLN 474.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 6948182

BMW E60 E61 LCI Alarm System Unit Ultra Sonic Module

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 8644376

BMW G20 G30 F40 F45 Mini F54 F56 F60 Crankshaft Position Sensor 8644376

PLN 47.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 9175649

BMW E81 Footwell Light Module LOW PL2 FRM II 61359175649 9175649

PLN 141.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9380323

BMW 5 Series F10 Steering Column Module Electronic Control Unit ECU 9380323

PLN 265.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9210860

BMW X3 F25 Rear Fuse Box Power Distribution Control Unit Box 9210860

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 9350003

Safety Control Unit BMW F01 LCI F07 F10 F11 F25 Air Module Bag ECU 9350003

PLN 94.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 130002613-1

BMW 5 X5 7 Series E60 E61 E65 E70 Longitudinal Seat Adjusment Drive Motor

PLN 61.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 5A4A1E1

Kafas Camera BMW G20 G30 G28 G80 F40 F44 Front Assist Camera Module 5A4A1E1

PLN 712.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9263948

BMW E81 E90 LCI Business System Car Infotaiment Computer CIC 9263948

PLN 759.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 6969281

BMW 1 3 X1 Series E81 E84 E87 E90 E91 Parking Control Module Unit PDC 6969281

PLN 237.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9292945

BMW F20 F21 F22 F30 F31 F32 F36 FEM Module Control Unit 9292945

PLN 522.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9264924

BMW F01 F02 F10 F11 F13 Power Distribution Fuse Box Rear 9264924

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 6822625

Dashboard Monitor BMW X3 F25 X4 F26 Onboard Central Display Screen 8,8" 6822625

PLN 1,377.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 6989068-PS

Parking Ultrasonic Sensor Mini R50 R52 R53 PDC Unit Sensor Rear Pure Silver 900

PLN 47.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 9340998

BMW 1 2 Series F21 F22 Wiring Passenger Side Loom Front Door Left N/S 9340998

PLN 61.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9134734

BMW E93 Convertible Rollover Control Controller Module Unit 9134734

PLN 759.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9252815

BMW F01 F02 F10 F11 LCI Power Distribution Fuse Box Front 9252815

PLN 85.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9284974

BMW F10 F11 On-board Central Information Display Screen Monitor 10,25" 9284974

PLN 948.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9276064

BMW X3 F25 Antenna Aerial Diversity Amplifier Unit 868 MHZ 9276064

PLN 94.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9243667

BMW X3 F25 X4 F26 Rear Door Left Right N/O/S Wiring Loom Cables Harness 9243667

PLN 94.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9337880

BMW F20 F22 F30 Rear Electric Power Distribution Fuse Box 9337880

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 9270646

BMW E88 ECU Body Control Module H4 Junction Box PL2RR JBBFE IIIR 9270646

PLN 123.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9251488

BMW E88 Cabrio Footwell Light Module Control Unit ECU PL2 FRM3R 9251488

PLN 617.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9181453

BMW 1 X4 X5 Series F20 F21 F25 F26 Antenna Aerial Diversity Trap Circuit 9181453

PLN 18.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 7928648

BMW G30 LCI Radio Remote Control Receiver Module ECU Unit 434 Mhz 7928648

PLN 94.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 8573257-9

BMW F20 F30 F32 120d 320d 420d Diesel N47N 163HP Engine ECU DDE 8573257 Manual

PLN 142.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9118108

BMW 1 Series E81 E82 Wiring Set Door Co-driver 9118109

PLN 37.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 9177985-1

BMW E93 Cabrio ECU Body Control Module H3 Junction Box 9177985

PLN 113.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 8571084

BMW F20 F21 F30 LCI Wiring Injector Loom Harness Cable Module B47 Engine 8571084

PLN 664.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9399427

Radio Head BMW F20 F21 F22 F30 F31 Unit Basic Media Navigation Headunit 9399427

PLN 332.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9290989-2

Radio Professional BMW F30 F31 F32 CD Bluetooth Player 9290989

PLN 237.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 7811163

BMW 1 3 5 Series F10 F20 E90 LCI Wiring Harness Engine Glow Plug Module 7811163

PLN 47.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 9191408

BMW X1 Series E84 Wiring Cable Loom Set Rear Door Left Right N/O/S 9191408

PLN 56.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 9314237

BMW F20 F21 F22 F30 F31 F32 F36 Module Control Unit FEM 9314237

PLN 189.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 8585935

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

PLN 189.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 8570934

BMW F20 F21 116d ed Diesel N47N 116HP ECU Engine Control Unit DDE 8570934 Manual

PLN 664.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 8355056

BMW 5 X5 Series E53 Fuel Tank Flap Actuator 8355056

PLN 47.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 7810002-1

BMW 1 Series E81 E82 E87 LCI E88 N47S 123d ECU Kit DDE CAS 3 Key 7810002 Manual

PLN 1,519.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 8514766

BMW 1 Series F20 114d 116d ed N47N Wiring Harness Engine Glow Module 8514766

PLN 759.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9196938

BMW E93 Seat Control Module Unit ECU 9148266

PLN 142.95

Free delivery - Mon, Nov 24

If paid before 14:00

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Showing 100-198 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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