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. 8573258-7

BMW F20 F21 F30 116d 316d N47N 116HP Engine ECU Kit DDE 8573258 Manual Key FEM

PLN 569.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 9244426

BMW X5 E70 Rear Bumper PDC Cables Wiring Loom Set 9219647

PLN 218.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 9153136

BMW F01 F02 F03 LCI Holder Bracket Control Telematics Unit 9153136

PLN 47.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. 8485065

BMW G11 G12 G14 G15 G16 G30 G31 G32 G38 Positive Battery Cable Wire 8485065

PLN 189.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 9211840

BMW F01 Wiring Loom Cable Harness 9211840

PLN 123.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 9360372

BMW X6 F16 Fuse Box Power Distribution Relay Control Unit Box Rear 9360372

PLN 61.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 8512047-7

BMW E90 E91 LCI N47N 320d 163HP ECU Module KIT DDE 8512047 Automatic

PLN 759.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 9488417

Mini F60 BMW F48 SCR AdBlue Module Control Unit 9488417

PLN 142.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 7120204

BMW E93 Cable Wiring Loom Harness Hydraulic Pump 7120204 7191362

PLN 142.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 6820931

Telematics Module BMW X1 F48 F20 F30 Bluetooth GPS Control Unit ECU 6820931

PLN 161.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 9119355

BMW E60 E61 E63 E81 E87 E90 E91 DAB Radio Tuner Module 9119355

PLN 123.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 8517874-8

BMW F20 118d F30 318d N47N 143HP Engine ECU Kit DDE 8517874 + Key + FEM + Lock

PLN 854.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 9118611

BMW Z4 E86 Hifi Audio Sound AMP Amplifier Module 9118611

PLN 2,374.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 9133913

BMW Z4 E89 Roadster Convertible HiFi Speaker System Amplifier 9133913

PLN 283.95

Free delivery - Tue, Jan 13

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 - Tue, Jan 13

If paid before 14:00

Part no. 6825541

BMW F20 F21 F22 F30 F32 Front Electronic Module Control Unit FEM 6825541

PLN 474.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 7220891

BMW E91 LCI Control Unit Module Support Plate Bracket Carrier Holder 7220891

PLN 94.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 7195768

BMW 7 Series E65 E66 E67 Battery Holder Hold Down Strap Bracket 7195768

PLN 18.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. 8510284

Engine Wiring Loom BMW F30 F31 F32 330d 430d N57N Gearbox Module Harness 8510284

PLN 218.95

Free delivery - Tue, Jan 13

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 - Tue, Jan 13

If paid before 14:00

Part no. 1421295

Mini EGS Control Unit Module ECU Programmed 5 Pins 1421295

PLN 47.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. 9229880

BMW E88 Cabrio ECU Body Control Module H3 Junction Box 9229880

PLN 189.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 9277818

Antenna Amplifier BMW F23 Cabrio FM Radio Booster Unit Module 9277818

PLN 51.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. 6960221

Airbag Module BMW E65 E66 Sensor B-pillar Left N/S Control Unit Air Bag 6960221

PLN 42.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. 7514342-1

BMW 5 Z4 Series 1 E34 E85 Base B Terminal Point Engine Compartment 7514342

PLN 75.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 9289590

BMW X5 X6 E70 E71 Antenna Amplifier Module Trap Circuit 9289590

PLN 42.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. 7543297

BMW 5 6 Series E60 E61 E63 E64 N52 Cable Alternator Starter Base B

PLN 42.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. 9491591-2

BMW F22 F87 F23 LCI Rear Tail Light Lamp Left N/S LED Wiring Loom 9491591

PLN 61.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 9289679

BMW X5 F15 X6 F16 Antenna Amplifier Control Unit Module 9289679

PLN 42.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. 7618677

Battery Lead Cable BMW E81 E84 E87 RR1 RR2 RR3 Negative IBS 7618677

PLN 94.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 9167202

BMW E60 E61 LCI E63 E64 Body Gateway Module ECU Control Unit 9167202

PLN 42.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. 9150883

BMW 3 E93 Convertible Boot Trunk Lid Tailgate Wiring Loom Harness Cables 9150883

PLN 189.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 3413934-2

BMW X3 E83 Rear Bumper Wiring Loom PDC Harness 1452049

PLN 42.95

Delivery - Tue, Jan 13

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 - Tue, Jan 13

If paid before 14:00

Part no. 9314234

BMW F20 F21 F22 F30 F31 F32 Body Control Module Unit FEM ECU LR01 9314234

PLN 379.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 5A149A9

BMW F40 116d B37B B37C15A 116HP Engine Control Unit Module ECU DME 5A149A9

PLN 1,282.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 9113064

BMW 5 Series E60 E61 LCI Centre Console Switch Cluster Control Unit ECU 9113064

PLN 43.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. 8636069

BMW F20 F30 LCI B48 Engine Gearbox Module Wiring Cable Loom Harness 8636069

PLN 332.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 8584817

BMW G20 G21 G01 G02 Wiring Harness Engine Glow Plug Module 8584817

PLN 142.95

Free delivery - Tue, Jan 13

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 - Tue, Jan 13

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 - Tue, Jan 13

If paid before 14:00

Part no. 9296975

BMW X5 F15 Control Unit Bracket Boot Trunk Module Unit Mount Holder 9296975

PLN 42.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. 6943085

BMW E60 E61 Air Module ECU Control Unit Gateway Module 6943085

PLN 61.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 9153137

BMW F01 F02 F03 Holder Bracket Control Unit Top Rear Side View 9153137

PLN 42.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. 8507912

BMW F30 F31 Engine Wiring Loom N47N Harness Automatic Gearbox 7549282

PLN 189.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 6865245

BMW X5 F15 X6 F16 Power Steering Column Control Unit Module 6865245

PLN 85.95

Free delivery - Tue, Jan 13

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 - Tue, Jan 13

If paid before 14:00

Part no. 9437208

BMW F45 F48 F49 Mini Countryman F60 Ground Earth Cable Adapter Mass 9437208

PLN 113.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 6919113-1

BMW E81 E82 E87 E88 E90 E91 E92 E93 F10 F11 F12 Black Relays 5 Pin Set 6919113

PLN 42.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. 6940588

BMW 5 Series E60 E61 Alarm System Unit Ultra Sonic Module 6940588

PLN 47.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. 9362445

BMW F20 F21 F22 Audio Amplifier Harman Kardon Active Sound Design Unit 9362445

PLN 379.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 6857124

Crash Module BMW F01 F02 LCI F10 F11 F13 ICM Control Unit ECU 6857124

PLN 42.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. 9231518

BMW F31 Antenna Aerial Diversity Trap Circuit 9231518

PLN 42.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. 7488140

BMW F10 F20 F21 F30 F31 LCI SCR Control Module ECU Unit 7488140

PLN 142.95

Free delivery - Tue, Jan 13

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 - Tue, Jan 13

If paid before 14:00

Part no. 8579478

BMW F20 F30 F32 120dX 320dX 420dX Diesel N47N 184HP ECU Unit DDE 8579478 Manual

PLN 379.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 9253209

BMW E81 E87 LCI E90 E91 N43 DC/DC Wandler Torque Converter Module ECU 9253209

PLN 42.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. 9330952

BMW F13 F12 Air Control Module Control Unit ACSM4 9330952

PLN 94.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 8408783

BMW X5 E53 Flap Radio Partition Mounting Part Cover Dashboard 8408783

PLN 47.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. 3419515

BMW E83 LCI Valvetronic Starter Cable Wire Loom 3419515

PLN 75.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 7634063

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

PLN 389.95

Free delivery - Tue, Jan 13

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 - Tue, Jan 13

If paid before 14:00

Part no. 6911908

On Board Monitor BMW X5 E70 X6 E71 Sat Nav System Screen Display 8,8" 6911908

PLN 284.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 8494948

BMW F40 F44 F48 Mini F54 Rear Tailgate Smart Opener Top Wire Sensor 8494948

PLN 94.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 6955116-BAQ

BMW 1 3 Series E81 E82 E87 E88 E90 E91 Ultrasonic Sensor PDC Barriquerot 6955116

PLN 47.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. 9304728

PDC Wiring BMW X3 F25 Front Bumper Loom Cable Harness Parking Sensors 9304728

PLN 427.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 8506442

BMW E81 E82 E87 LCI E88 123d Petrol N47S 204HP ECU Engine DDE 8506442 Manual

PLN 664.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 7939168

Rain Sensor BMW F20 F21 F30 F31 Windscreen Light Solar Condensation Unit 7939168

PLN 189.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 8626172-8

BMW F10 LCI 520i N20 184HP Engine Control ECU Kit DDE 8626172 Automatic

PLN 1,329.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 7199885

BMW E93 Cabrio Convertible Folding Top Roof ECU Module CTM 7199885 7199882

PLN 61.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 969713

BMW F01 F07 Boot Trunk Lid Tailgate Lock Wiring Harness Loom Cable 969713

PLN 42.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. 9225792

BMW Z4 E89 Wiring Loom Passenger Side Door Cables Cable Harness 9225792

PLN 61.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 8506444-1

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

PLN 1,139.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 8630125-4

BMW F20 F21 F30 116i 316i N13 136HP Engine Control ECU Kit DME 8630125 Automatic

PLN 2,137.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 9293309

BMW F20 F21 F30 F31 F32 Body Control Unit Module REM 9293309

PLN 61.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 8577834

BMW F30 X3 F25 N57N 330d 30dX 258HP Engine Control Unit ECU 8577834 Automatic

PLN 617.95

Free delivery - Tue, Jan 13

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 - Tue, Jan 13

If paid before 14:00

Part no. 9150889

BMW E81 E87 LCI Front PDC Parking Distance Control Loom Wiring 9150889

PLN 189.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 6820235

BMW F20 F30 Mini F55 F56 Control Unit Air Conditioning Module 6820235

PLN 61.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 8589168

Alternator Harness BMW X3 G01 X4 G02 30dX 40dX B57 Cable Base B+ Loom 8589168

PLN 237.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 9318579

BMW F20 F21 F30 F31 Bluetooth Teleservices GPS Telematics Module 9318579

PLN 142.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 7266666

BMW F11 Touring Control Unit Rear Tailgate Boot Lid Function Module 7266666

PLN 42.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. 6803169

Air Con Module BMW F20 F30 F31 Mini F55 F56 Air Conditioning A/C Unit 6803169

PLN 113.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 8582279-3

BMW F20 F30 F32 120d 320d 420d Diesel N47N 184HP ECU Kit DDE 8582279 Keys FEM

PLN 949.95

Free delivery - Tue, Jan 13

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 - Tue, Jan 13

If paid before 14:00

Part no. 6824110

BMW 3 F30 LCI 330e Hybrid High Voltage Battery Wiring Loom Harness 6821420

PLN 284.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 8649179

BMW X5 F15 Positive Wiring Harness Cable Battery 8649179

PLN 379.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 6857701

BMW 1 2 3 F20 F21 F22 F30 F31 ECU ICM Plus Control Unit Module 6857701

PLN 75.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 5A18364

BMW F40 Heater Air Conditioning System Control Unit Module ECU 5A18364

PLN 142.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 6986987

BMW Z4 Series E85 Cable Loom Passenger's Door Wiring Harness 6986987 6986982

PLN 142.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 8792148

Navigation Headunit BMW F20 F22 F30 Mini F55 F56 Head Unit Basic Media

PLN 569.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 9281518

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

PLN 569.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 6970904

BMW 7 Series E65 E66 E67 Sensor Rear Seat Airbag 65776970904 6970904

PLN 46.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. 7187221

BMW F01 F02 F03 LCI Rear Third Stoplamp Stop Lamp Brake Light 7187221

PLN 42.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. 7857786

BMW F09 F10 F12 F13 Differential Locking Module Control Unit ECU 7857786

PLN 189.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 8590102

Alternator Cable BMW 5 G30 G31 G12 B57 Battery Wiring Alternator B+ 8590102

PLN 141.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 6791131

BMW F01 ICM Module Integrated Chassis Management QL ES Control Unit 6791131

PLN 142.95

Free delivery - Tue, Jan 13

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 - Tue, Jan 13

If paid before 14:00

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Showing 1189-1287 of 4791 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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