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. 6950525-1

2 x BMW E63 E64 E93 Alarm System Module Sensor DWA Control Unit Set 6950525

PLN 47.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 9111165-PB

BMW E81 E82 E87 E88 E90 E91 Ultrasonic Sensor PDC Platinbronze A53 9111165

PLN 61.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 6882780

BMW X5 F15 X6 F16 Power Steering Column Control Unit Module 6882780

PLN 61.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 7550469-2

BMW E60 E61 E81 E87 LCI E90 E91 E92 E93 Alternator Petrol 180A 7550469

PLN 61.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9200503

BMW E60 LCI F01 F07 F10 ECU USB Hub Control Unit Module 9200503

PLN 61.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 8506373-1

BMW X3 E83 LCI 1.8d N47 Engine Control Unit ECU Kit Module DDE 8506373 EWS Key

PLN 1,139.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9226880

BMW F20 F21 Radio Aerial Antenna Amplifier AM/FM Control Unit Module 9226880

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 9294309

Dashboard Monitor BMW X3 F25 X4 F26 Onboard Central Display Screen 6,5" 9294309

PLN 474.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 6927705

BMW 5 Series E60 E60N E61 E61N Battery lead positive underfloor 80 MM² AL petro

PLN 284.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 8507924

Gearbox Wiring BMW F20 F30 125d 325d N47S1 Engine Loom Harness Cables 8507924

PLN 360.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9261111

BMW 1 3 4 Series F20 F21 F30 F31 F32 Power Distribution Fuse Box Rear 9261111

PLN 89.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9371789

BMW F20 F21 F30 F31 Bluetooth Teleservices GPS Telematics Module 9371789

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 7537612-1

BMW X5 E53 E60 E81 E87 E90 Engine Vacuum Control Electric Valve 7537612

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 9381581

BMW i3 I01 IBS Cable Negative Battery Lead Wiring Harness Control Unit 9381581

PLN 142.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 6799712

BMW F10 F11 ICM Management Control Unit Module DSC Brakes 6799712

PLN 42.95

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. 8610635-3

BMW F20 F30 F31 120i 320i N20 184HP Engine Control Unit ECU DME 8610635 Manual

PLN 949.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 6957759

BMW E60 E61 E63 Driver Side Door Air Module Control Unit Module 6957759

PLN 85.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 6957123

BMW 3 Series E92 Front Left N/S Door Wiring Cables Harness Loom 6957123

PLN 66.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9270020

BMW F06 F12 F13 Front Wiring Loom PDC Harness Parking Sensor 9270020

PLN 332.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9377149

BMW 1 3 Series F20 F21 F30 F31 Telematic Control Unit Module 9377149

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 6950525

BMW 3 6 Series E63 E64 E93 DWA Alarm System Module Unit 65756950525 6950525

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 9226357-1

Loudspeaker BMW F20 F30 Top-HiFi Door Speaker Tweeter Set Harman Kardon 9226357

PLN 94.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 6858017

BMW F10 F11 LCI Control Unit EMF Module 6858017

PLN 112.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9166711

BMW E90 Light Control Module ECU LCM NSW Footwell PL2FRMFA 9166711

PLN 142.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 7805349-1

BMW X3 Series E83 LCI M47N2 2.0d 150HP ECU Kit DDE + EWS4 + Key 7805349 Manual

PLN 948.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 6915943

BMW 7 X3 Z4 Series E65 E66 E83 E85 E86 Interface Japan Luggage Module 6915943

PLN 284.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9281518

BMW F20 F21 F22 F30 Radio Professional CD Bluetooth Headunit Control 9281518

PLN 949.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9296495

BMW F20 F21 F22 F30 F31 F33 F34 Air Module Control Unit ECU 9296495

PLN 94.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 6943285

BMW E65 Xenon Headlight Control Module LM E6X LWR 6943285

PLN 189.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9122276

BMW 5 Series E60 E61 LCI Rear Bumper PDC Cables Wiring Loom Set 9122276

PLN 75.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 8507912

BMW F30 F31 Engine Wiring Loom N47N Harness Automatic Gearbox 7549282

PLN 189.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 8510221-13

BMW E90 E91 LCI E92 325d Diesel N57 204HP ECU Engine Kit DDE 8510221 Automatic

PLN 759.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 6958414

BMW E60 E61 Alarm System Unit Ultra Sonic Module 9149673

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 9231443

BMW 3 Series F30 F80 M3 Radio Antenna Amplifier Suppression Filter 9231443

PLN 47.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 9302937

BMW F01 LCI Cable Door Rear Left Right N/O/S Wiring Harness 9262882

PLN 142.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 6821407

High Voltage Cable BMW F45 Mini F60 Hybrid Harnes EDH 6821407

PLN 142.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 6927548

BMW Z4 E85 Drive For Window Lifter Motor Front Right O/S 6927548 9116626

PLN 189.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9125224

BMW 1 3 SERIES E87 E90 E91 Control Unit Airbag ECU NO CRASH DATA 9125224

PLN 75.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9116978

BMW X5 Series E70 Cable Loom Door Rear Left Right N/O/S Wiring Harness 9116978

PLN 75.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9153418-2

BMW F10 F11 B Plus Distributor Box Front Battery Cable Unit 9153418

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 8736682

BMW i3 I01 Body Domain Comfort Control Unit BDC Module ECU 8736682

PLN 1,139.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9270500-SCH

BMW X3 Series E83 LCI Front PDC Ultrasonic Parking Sensor Black 9270500

PLN 37.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 7521122

BMW E60 E65 E70 E87 E90 F10 F20 F30 N52 N53 Petrol Engine Starter Motor 7521122

PLN 94.95

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. 6966551

BMW 5 Series E60 E61 Front Door Wiring Loom Harness Passengers Side 6966549

PLN 104.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9286863

BMW X5 Z4 Series E70 E89 Active Sound Harman Becker Amplifier Design 9286863

PLN 189.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9374506

Body Control Unit BMW F20 F21 F30 F31 F32 Module REM 9374506

PLN 123.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 1393415

BMW 3 5 7 Series E36 E38 E90 E91 F10 F11 Change-Over Contact Relay Grey 1393415

PLN 18.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 3454167-1

BMW X3 E83 Shark Roof Fin Antenna Aerial Module Unit 3454167 3436613

PLN 37.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 6818814

Airbag Module Mini F55 F56 F60 BMW X1 F48 F45 ECU Control Unit Air Bag 6818814

PLN 522.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 1439674

BMW X5 E53 Base B Positive Battery Terminal Cable Cover Compartment

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 9393667

BMW F10 LCI Body Control Module ECU Unit JBBFEIII V2 PL6 9393667

PLN 237.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 6820526

Head Unit BMW F20 F21 Radio Media GPS Sat Navigation Unit 6820526

PLN 569.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 7316216

Headlight Ballast Control BMW F06 F12 F13 F15 F16 LED Adaptive Module 7316210

PLN 522.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 8512499

Engine Control Unit BMW E81 E87 E90 E91 LCI N47 Diesel ECU DDE 8512499

PLN 113.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9117877

BMW F20 F21 F30 F31 F32 F33 Negative Minus Pole IBS Battery Lead Cable 9117877

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 6907329

BMW E65 Door Cable Guide Rear Left N/S Wiring Loom Bracket Trim Cover 6907329

PLN 47.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 6933410

BMW E85 Fuses Electrical Fuse Set 6933410

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 8510221-6

BMW E90 E91 LCI E92 325d Diesel N57 204HP ECU Engine Kit DDE 8510221 CAS3 + Key

PLN 902.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 6866990

Airbag Module BMW F01 F02 LCI F10 F11 F13 Air Bag ECU ICM Control Unit 6866990

PLN 132.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9325656

BMW F20 F21 F22 F30 F31 F32 Body Control Module Unit FEM ECU LR01 9325656

PLN 237.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 6919812

BMW E60 E65 E66 E67 Front Seat Sensor Mat 6919812

PLN 113.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 7852630

Differential Lock Module BMW F10 M5 F80 M3 Rear Axle Control Unit ECU 7852630

PLN 237.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 8585727

Wiring BMW F21 F30 F34 F36 Diesel N47N Engine Gearbox Module Harness 8585727

PLN 123.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9262752-1

BMW F20 F21 F22 Central Information Display Screen 6,5" Control Unit 9262752

PLN 123.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 7810863

Battery Cable BMW X3 F25 Wire Lead Positive Alternator Starter B+ 7810863

PLN 94.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 8509910

BMW X3 F25 X4 F26 Engine Electronics Control Unit Box Cover Trim 8509910

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 8576333-3

BMW F20 F30 F32 120dX 320dX 420dX Diesel N47N 184HP ECU Kit DDE 8576333 Key FEM

PLN 902.95

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. 8665279

BMW F20 M135i N55 326HP Engine Control Unit ECU DME 8665279 Manual

PLN 1,614.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 6906070

BMW X5 E53 Roof Antenna Amplifier Trap Circuit 6906070

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 7531992

BMW X5 E53 3.0i M54 Wiring Loom Harness Engine Automatic Gearbox 7531992

PLN 142.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9229989

BMW F07 GT Cable Loom Door Rear Left Right N/O/S Wiring Harness 9210135

PLN 65.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 6906624

BMW E87 E90 E91 Power Distribution Fuse Box Front 6906624

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 6861026

BMW I01 F45 F46 Mini F55 F56 Parking Assistant PDC Control Unit Module 6861026

PLN 61.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 7516376

BMW E65 E66 E67 Electric Valve 735i 745i 735Li 745Li 745LiS 7516376

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 9231178

BMW F22 F30 F80 M3 F32 Radio Antenna Amplifier AM FM 9231178

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 6968836-1

BMW 1 Series E87 BODY CONTROL MODULE L2 61356968836 6968836

PLN 56.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 6960259

BMW 1 3 SERIES E81 E82 E87 E90 E91 E92 E93 Flat Cable Wiring Wire CAS Start Stop

PLN 75.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 8578504

BMW F30 LCI 335dX N57Z Engine Gearbox Module Wiring Cable Loom Harness 8578504

PLN 142.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 8506281-5

BMW E87 E90 LCI 116d 316d Diesel N47 ECU KIT Engine DDE 8506281 CAS3 Key Manual

PLN 379.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9347878

Dashboard Monitor BMW X5 F15 Onboard Central Display Screen 10,25" 9347878

PLN 949.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 6982652

BMW 1 Series E82 E88 Positive Battery Lead Cable Wire 61126982652 6982652

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 3450192

BMW X3 E83 LCI Light Module Control Unit ECU Lights LM II LWR 3450192

PLN 569.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9345322

BMW F10 LCI ECU Body Control Module V2 Junction Box PL6 JBBFE III 9345322

PLN 61.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9267085

Antenna Amplifier BMW F01 F10 F13 Aeral Diversity 868 MHZ Control Unit 9267085

PLN 75.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9122432

BMW E60 E61 LCI X5 E70 X6 E71 X3 F25 Rain Light Solar Sensor 9122432

PLN 75.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 8636596

BMW 1 3 Series F20 F21 F30 F31 Line Cable Power Distribution Module 8636596

PLN 56.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 8649179

BMW X5 F15 Positive Wiring Harness Cable Battery 8649179

PLN 379.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 7164820-2

BMW E88 E93 Convertible Rollover Bar Protection System Sensor Unit Module 800137

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 6838610

BMW 1 Series F40 Aerial probe AM/FM Antenna 6838610

PLN 56.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 9286945

Comfort Control Unit BMW F06 F10 F11 F12 F13 Junction Box 9286945

PLN 189.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 7645837

BMW i3 I01 Electric Gearbox Gear Shifting Actuator Module Unit 7645837

PLN 474.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 6777641

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

PLN 61.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 6964142

BMW 7 Series E65 E66 E67 Control Unit Door Rear Driver-Side 6933266

PLN 18.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 9488417

Mini F60 BMW F48 SCR AdBlue Module Control Unit 9488417

PLN 142.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 7638194

BMW F20 F21 F22 F30 F31 Engine Starter Motor N20 N26 N55 Petrol 7638194

PLN 61.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 7835123

BMW E60 E61 LCI M5 E63 M6 Wiring Harness Air Conditioning Compressor

PLN 94.95

Free delivery - Mon, Nov 24

If paid before 14:00

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Showing 1-99 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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