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. 9222071

BMW F07 BCM Body Control Module Unit Controller 9222071

PLN 142.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 6948054

BMW Z4 E85 Front Door Wiring Loom Cable Harness Left N/S 6948054

PLN 123.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9142092

Bluetooth Antenna BMW X1 X3 Z4 E84 E89 F01 F02 F03 F25 Amplifier AMP 9142092

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 9459673-1

Seat Module BMW X4 F26 F20 F30 Front Driver Side Control Unit ECU 9250421

PLN 313.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 3455305-1

2 x Mini R57 R58 R59 DWA Door Alarm System Module Control Unit Set 3455305

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 1K0971391ES

VW Golf Mk5 Seat Well Cable Front Left N/S Wiring Loom Harness 1K0971391ES

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 9257152

Telematics Bluetooth BMW F10 F20 F22 F30 Combox GPS Control Unit Module 9257152

PLN 241.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. A1698206726

Mercedes-Benz W245 ECU Control Unit Sensor Module Airbag A1698206726

PLN 56.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 7317408

BMW F10 F11 LCI F30 F31 Xenon Headlight Ballast Control Unit 7317408

PLN 142.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9186655

BMW 3 Series E92 Front Right O/S Driver Side Door Wire Wiring Loom 9186655

PLN 47.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 6934096

BMW 7 Series E65 Cable Harness Door Rear Right Left N/O/S Wiring Loom 6923713

PLN 47.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. A2218210197

Mercedes W221 Cover Wiring Cable Front Door Protection Seal Sleeve A2218210197

PLN 47.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 3C0907376A

Volkswagen VW Golf Scirocco Mk3 Electric Damping Control Module 3C0907376A

PLN 94.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. B67824524

Mercedes W164 Media Interface Connection Cable MI AUX Wiring B67824524

PLN 104.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9286785

BMW X1 E84 ECU Body Control Module Junction Box H2 PL2RR JBBFE IIIR 9286785

PLN 113.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 6958525-1

BMW 5 X5 X6 Series 1 E60 E61 E70 F07 F10 F11 Seat Adjustment Switch Left N/S

PLN 47.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 02E911023Q

Audi A3 8P Engine Starter Motor Actuator 2.0 TDI Diesel 02E911023Q

PLN 94.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9289637

BMW F10 Rear Window Parcel Shelf Loudspeaker Speaker Left Right N/O/S 9289637

PLN 47.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. A9067601304

Mercedes-Benz Sprinter W906 Front Right Door O/S Handle Bowden Pull Cable

PLN 37.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 8W0907063CG

Audi Q5 FY 2.0 TFSI DAXB Petrol Supply Body Control Module Unit 8W0907063CG

PLN 332.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. A9105400805

Mercedes Sprinter W910 Fuel Tank Wiring Loom Cable Harness A9105400805

PLN 47.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 9151979

BMW E60 E90 Dashboard Dash Onboard Monitor Display Screen 8.8" CCC

PLN 142.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 8K0971228AH

Audi A5 8T Positive Battery Lead Terminal Cable Wiring 2.0 TFSI 8K0971228AH

PLN 275.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9259469

BMW X3 F25 Fuse Box Power Distribution Control Unit Module Rear 9259469

PLN 46.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 9221861

BMW E90 E91 E93 LCI Front Left Right N/O/S Seat Control Module ECU 9221861

PLN 151.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 8573779-1

BMW F30 330dX 258HP N57N Control Unit Module ECU DDE 8573779 Key FEM Automatic

PLN 1,329.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 1K0971250AH

VW Golf Mk5 V Negative Battery Terminal Cable Wiring 1K0971250AH

PLN 47.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 9387626-1

MINI Cooper One F55 F56 Rain / Light / Solar HUD Sensor Windshield 9387626

PLN 61.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 8K0951253-1

Audi VW Volkswagen Seat Relay 643 Unit Module 4 Pins Set X2 8K0951253

PLN 61.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9346799

BMW F01 F02 LCI F10 Diversity Aerial Antenna Amplifier DAB 9346799

PLN 189.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. A2219006303

Mercedes W221 Radio Multimedia Head Unit A2219006303

PLN 2,849.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 7111904

BMW X5 E53 Front Driver Seat Memory Electric Wiring Loom Harness 7111904

PLN 161.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9270495-1

BMW X5 E70 X6 E71 F10 F11 F12 Parking Sensor PDC Ultrasonic Black 9251944 SET X4

PLN 161.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. LHD-HC-8613-R56

LHD-HC-8613-R56

PLN 1,424.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9313992

BMW F13 Front Seat Control Module Unit ECU Left Right N/O/S 9313992

PLN 379.95

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. 03C971612BR

Audi A1 8X 1.4 TSI Engine Wiring Loom Harnes 03C971612BR

PLN 332.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. A1776203400

Mercedes W177 W247 Battery Bracket Mount Holder Support A1776265300

PLN 56.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 079903805J

Audi A4 B6 B7 4.2 V8 FSI Alternator Bracket Mount Holder 079903805J

PLN 189.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. A2059007037

Mercedes W205 W213 Fuse Box Rear SAM Module Electrical Fuse Unit A2059007037

PLN 427.95

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. A0009822923-1

Mercedes W177 W205 W247 Relay Fuse Unit Module 4 Pins Grey SET X2 A0009822923

PLN 75.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. A0038207726

Mercedes W212 Siren Alarm Horn Signal Module Unit A0038207726

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 9364638

Mini Cooper One F54 F55 F56 F60 ECU Body Domain Controller BDC Module 9364638

PLN 522.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. H2862N-P

Mini R56 R57 R58 R60 Display Screen 9 inch Android Surround Panel H2862N-P

PLN 1,234.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. A0009055504-TNG1

Mercedes W166 C207 Front Rear PDC Parking Distance Sensor Tenorite Grey - 755

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 9225825

BMW E81 E84 E87 E90 E91 PDC Module Parking Control Unit 9225825

PLN 237.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. A2059001811

Mercedes W205 Rear Door Control Module Unit Left N/S ECU A2059001811

PLN 61.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9365833

Business Navigation BMW F20 F21 F30 F31 Sat Nav Head Unit Player 9365833

PLN 284.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 8W1907063AG

Audi A4 B9 Body Control Comfort Unit Module BCM Unit ECU 8W1907063AG

PLN 1,139.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 3413934-2

BMW X3 E83 Rear Bumper Wiring Loom PDC Harness 1452049

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 6868251

Air Module BMW F01 F02 LCI F07 GT F10 F11 F13 ECU ICM Control Unit 6868251

PLN 123.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. A2115454840

Mercedes E-Class S211 W211 Battery Tray Holder Mounting Bracket A2115454840

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 3449417

BMW Mini Cooper R55 R55N R56 R56N LCi Ultra Sonic Module Alarm System 3449417

PLN 93.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9143121-1

BMW E81 E87 E90 E91 E92 E60 E61 Loudspeaker Speaker Logic7 L7 HiFi Audio 9143121

PLN 142.95

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. 8571036

Mini F54 F55 F56 F57 Wiring Harness Engine Supply Module 8571036

PLN 61.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. A6399003000

Door Module Mercedes Vito W639 Front Right O/S Control Unit ECU A6399003000

PLN 189.95

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. 4G2907311C-1

Audi A7 4G8 3.0 TDI CRTE 218HP Quattro Engine ECU Kit 4G2907311C BCM2 + 2 Keys

PLN 2,849.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 8510249

Engine Wiring BMW E90 E91 LCI N47N Loom Harness Cable Automatic Gearbox 8510249

PLN 94.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. DT1T14B321AG

Ford Transit Connect Mk2 II Air Module Control Unit ECU DT1T14B321AG

PLN 237.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 8W9971104A

Audi S4 B9 Wiring Loom Set PDC Rear Complete Harness Parking Sensor 8W9971104A

PLN 237.95

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

Part no. 8509757-1

BMW F07 530d F01 730d N57 245HP Engine ECU Kit DDE 8509757 CAS4 Key Automatic

PLN 949.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9170452

BMW X5 Series E70 Footwell Light Control Module Unit LEAR FRM II NSW 9170452

PLN 569.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. A0009062103

Mercedes W205 Alternator Generator Petrol Engine Valeo 150A 14V A0009062103

PLN 474.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. A1245401850

Mercedes W124 M103.940 Engine Fuse Box Module Unit A1245401850

PLN 332.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. A0009009114

Mercedes W205 Air Conditioning Climate Control Module ECU A0009009114

PLN 104.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 6990109

BMW X3 E83 LCI Front Door Speaker Tweeter 6990109

PLN 61.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 6R0919433

VW Volkswagen Audi Seat Skoda Glow Plug Relay Unit Black 505 7 Pins 6R0919433

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 9257090

Mini Navigation Head Unit R55 R56 R57 LCI R60 R61 CHAMP 2 Sat Nav DAB 9257090

PLN 1,329.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9231518

BMW F31 Antenna Aerial Diversity Trap Circuit 9231518

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 9144846

Mini Cooper R57 Cabrio Convertible Wiring Loom Harness Rear Trunk Lid 9144846

PLN 61.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. A0009003500

Mercedes W204 W212 Fuel Pump Module Control Unit ECU AMG C63 A0009003500

PLN 123.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9207846

BMW X5 Series E70 Driver Side Front Right O/S Door Cable Harness Wiring 9207841

PLN 75.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 4F0907637A

Audi A6 C6 Yaw ESP Rate Sensor Module Unit Control ECU 4F0907637A

PLN 61.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 6911038

BMW 3 X5 Series E46 E53 Airbag Side Impact Crash Sensor Bosch 6911038

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 1440105280

Citroen Jumpy MK2 Peugeot Expert 1.6 HDI Alternator Wiring Loom 1440105280

PLN 85.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 6784961

BMW E81E88 E90 E92 Speed Sensor Yaw Rotary Rate Sensor Adaptive Steering 6784961

PLN 123.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 307873750AA

Mercedes W176 Steering Wheel Wiring Loom Harness 307873750AA

PLN 93.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9178962

BMW X5 X6 E70 E71 Power Distribution Fuse Box Battery 9178959

PLN 61.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 059903143K

Audi A4 B7 A6 C6 Alternator Bracket Pulley Mount Holder 2.7 3.0 TDI 059903143K

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. A2465401350

Fuse Box Mercedes W156 W176 W246 Front Relay Control Unit Module A2465401350

PLN 47.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. A0015453916

Mercedes CL 203 Automatic Gearbox Control Unit Module ECU A0015453916

PLN 142.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 6777641-1

Air Module Wiring BMW X5 E70 E81 E87 E90 E91 E92 E93 Steering Wheel Loom

PLN 93.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 0AD927755BE

VW Volkswagen Touareg 7L Transfer Box Control Unit Module ECU 0AD927755BE

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 9341546

BMW F40 G20 G30 Accelerating Sensor 9341546

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. A0009007604

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

PLN 94.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 7634063

Gearbox Wiring BMW F10 F11 520i 528i N20 Automatic Engine Loom Harness 7634063

PLN 474.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 3457402

Mini Cooper R58 Coupé Footwell Light Module High EKS PL3 FRM3R 3457402

PLN 949.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 09G927750CA

Audi TT 8N Automatic Gearbox Module Control Unit ECU 09G927750CA

PLN 569.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 03L903023L

Audi A3 8V Diesel Engine Starter Alternator Electrical 14V 140A 03L903023L

PLN 189.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9231179

Antenna Amplifier BMW F30 F80 M3 F82 M4 Rear Aerial Booster AM/FM DAB 9231179

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 9118931

BMW E60 E61 LCI Airbag ECU Control Unit Module 9118931

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. N000000003996

Mercedes Universal Fuse Relay Electrical Unit Set Bag N000000 003996

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 6929347

BMW 1 3 Series E82 E90 E92 Roof Antenna Aerial Shark Fin 6929347 6950704

PLN 75.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. A0035420219

Relay Mercedes W639 W906 5-Pin Black 12A A0035420219

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. A2218705687

Mercedes W221 Linguatronic Control Module Unit ECU English Version A2218705687

PLN 360.95

Free delivery - Mon, Nov 24

If paid before 14:00

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Showing 199-297 of 11489 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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