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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Part no. A1775409141

Mercedes W177 W243 W247 Front Door Wiring Harness Cable Driver Side A1775409141

PLN 142.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A1698208526

Mercedes-Benz A B Class W169 W245 Door Control Module Left Rear N/S A1698208526

PLN 47.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. A2048704526

Door Module Mercedes W204 Rear Left N/S Control Unit Module A2048704526

PLN 56.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. A2129008707-1

Mercedes W212 Display Screen Multifunction Dashboard Control Unit A2129008707

PLN 142.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A0015453116

Mercedes W211 Automatic Gearbox Transmission Module Control Unit A0015453116

PLN 123.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A6397601804

Mercedes Vito W639 Door Handle Bowden Cable Catch Rear Wire A6397601804

PLN 42.95

Delivery - Tue, Jan 13

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 - Tue, Jan 13

If paid before 14:00

Part no. A0009008709

Mercedes W213 Tyre Pressure Control Module Unit A0009008709

PLN 94.95

Free delivery - Tue, Jan 13

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Part no. A2218709987

Mercedes W221 Air Conditioning Climate Heater Control Unit Module A2218709987

PLN 42.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. A2075404107

Mercedes W204 M276 NOX Sensor Adapter Left N/S Harness Wiring Cable A2075404107

PLN 161.95

Free delivery - Tue, Jan 13

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Part no. A1775404507

Mercedes V177 C118 W247 Fuse Box Relay Control Unit Module A1775404507

PLN 189.95

Free delivery - Tue, Jan 13

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Part no. A2048702126

Mercedes W204 Door Module Control Unit Module Front Right O/S A2048702126

PLN 42.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. A2469050201

Mercedes C117 X156 Antenna Amplifier Control Unit Module A2469050201

PLN 132.95

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Part no. A2479002513

Telematic Control Module Mercedes W447 W907 W910 Telematics Unit A2479002513

PLN 474.95

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Part no. A1695408033

Mercedes-Benz A W169 Front Driver's Side Door Wiring Loom Harness A1695408033

PLN 94.95

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Part no. A2465405733

Wiring Harness Mercedes X156 W176 Petrol Battery To Starter Cable A2465405733

PLN 75.95

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Part no. A2048702626

Door Module Mercedes W204 Rear Right O/S Control Unit Module A2048702626

PLN 47.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. A2229004213-1

Keyless Go Mercedes GLC X253 Keyless Entry Control Module A2229004213

PLN 80.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A1729008500-3

Mercedes W166 W204 Display Screen Information Navigation Dashboard A1729008500

PLN 142.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A1729008500-2

Mercedes W166 W204 Display Screen Information Navigation Dashboard A1729008500

PLN 427.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2661536679-2

Mercedes W169 A170 M166.940 116HP Engine Unit Module ECU A2661536679 Automatic

PLN 237.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2058201201

Sunroof Wiring Mercedes C205 C238 Panoramic Motor Cable Harness A2058201201

PLN 75.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A1729002601

Mercedes SLK R172 Door Control Unit Module Front Right O/S A1729002601

PLN 142.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2055404596

Mercedes W205 Electrical Ground Line Wire Earth Cable A2055404596

PLN 94.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A0009051910

Battery Cable Mercedes W177 W247 Negative Lead Terminal Harness A0009051910

PLN 75.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2049009907-2

Mercedes W204 Navigation Radio Player Head Unit Computer A2049009907

PLN 664.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2049005410

Mercedes W204 Sat Nav Radio CD Player Radio Head Unit A2049005410

PLN 189.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2048200189

Mercedes-Benz C E Class W204 W207 Aerial Antenna Amplifier Unit A2048200189

PLN 42.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. A2229002112

Door Module Mercedes W205 GLC C253 Control Unit Rear Right O/S A2229002112

PLN 61.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A0045452905

Mercedes Relay Fuse Unit Module 4 Pins Grey A0045452905

PLN 42.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. A2049005601

Mercedes W204 S204 Estate SAM Control Unit Module Rear A2049005601

PLN 123.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A1775405501

Mercedes W177 Door Harness Loom Cable Wiring Rear Left Right N/O/S A1775405501

PLN 42.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. A1645403572-2

Mercedes W164 W251 Fuse Box Relay Module Control Unit A1645403572

PLN 902.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2469009312-1

Mercedes W176 Radio Stereo Head Unit Media Player Navigation A2469009312

PLN 379.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A9068203526

Door Module Mercedes Sprinter W906 Front Right O/S Control Unit ECU A9068203526

PLN 94.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2055405203

Mercedes W205 Negative Cable Battery Lead Minus Pole Wiring A2055405203

PLN 104.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2055400182

Mercedes W205 W213 C238 C253 Relay Fuse Box Top Cover Lid Cap A2055400182

PLN 47.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. A2098200326

Mercedes C209 Body Control Module Unit Temic 376 800 GZ A2098200326

PLN 42.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. A0009000716

Mercedes Vito W447 Diesel Adblue Module Control Unit ECU A0009000716

PLN 427.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2118700526

Driver Seat Module Mercedes R171 W203 W211 Memory Control Unit A2118700526

PLN 142.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A4475402105

Mercedes Vito W447 Battery Cable Starter Alternator Wiring Harness A4475402105

PLN 132.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A0038212751

Mercedes-Benz M S W221 ML W164 Airbag Impact Crash Sensor Door A0038212751

PLN 47.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. A2048701226

Mercedes S204 Door Module Rear Right O/S Control Unit ECU A2048701226

PLN 94.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2761509875

Mercedes W213 W222 A238 M276 Starter Screening Plate Shield A2761509875

PLN 61.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2056186000

Mercedes W205 W238 Rear Battery Holder Bracket Mount Strap Clamp A2056186000

PLN 47.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. A2098209610

Mercedes CLK W209 Convertible Alarm Anti Theft System Control Unit A2098209610

PLN 42.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. A2475457300

Mercedes W177 Fuse Box Relay Cover Lid Control Unit Bracket Trim A2475457300

PLN 70.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A1635409008

Mercedes-Benz M ML W163 Radio Aerial Antenna Amplifier Wiring Loom A1635409008

PLN 42.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. A6079002200-2

Mercedes W176 A180 CDI OM607 109HP BlueEFFICIENCY Engine Unit ECU A6079002200

PLN 379.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A0009821923-1

Mercedes W205 Interior Trunk Fuse Box Automotive Pink Relays Set A0009821923

PLN 94.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2519061100

Mercedes W251 Central Multimedia Navi GPS Control Head Unit ECU A2519061100

PLN 1,329.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A0131547002

Mercedes W211 CLS C219 Alternator Generator OM642 Diesel 14V 180A A0131547002

PLN 360.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2129004901

Fuse Box Mercedes W212 Rear SAM Relay Control Unit Module A2129004901

PLN 42.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. A1679006613

Mercedes W177 Sliding Roof Module Sunroof Panoramic Control Unit A1679006613

PLN 379.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2045409813

Battery Cable Mercedes W204 W207 Positive Wiring Harness Loom A2045409813

PLN 56.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. A2078201089

Mercedes W207 A207 Radio Aerial Antenna Amplifier Module Unit A2078201089

PLN 47.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. A2129007024

Mercedes CLS C218 Front Fuse Relay Box On Board Supply A2129007024

PLN 322.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2139003029

Mercedes A238 Fuse Box Control Unit SAM Module Relay A2139003029

PLN 379.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A0005455916

Mercedes W204 Automatic Gearbox Transmission Module Unit ECU A0005455916

PLN 94.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2215450801-1

Mercedes W221 Fuse Box Control Unit SAM Module Relay A2215450801

PLN 854.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A6401500434-1

Mercedes W169 A160 CDI OM640.942 82HP Engine Unit ECU Kit A6401500434 Automatic

PLN 949.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A9075407160

Mercedes W907 W910 Battery Electrical Wiring Harness Ground Line A9075407160

PLN 123.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2115452301

Mercedes-Benz E-Class S211 W211 Fuse Box Terminal Connection Unit A2115452301

PLN 42.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. A1669063901

Mercedes ML W166 Relay Module Box Under Rear Right Seat F4 A1669063901

PLN 85.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A4479002405

Head Unit Mercedes W447 Radio Navigation Audio 15 Control Unit A4479002405

PLN 474.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2229007109

SAM Module Mercedes C205 GLC X253 Coupe Rear Control Unit A2229007109

PLN 120.95

Free delivery - Tue, Jan 13

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 - Tue, Jan 13

If paid before 14:00

Part no. A2208205042

Mercedes-Benz S W220 Front Seat Adjustment Left Motor Actuator N/S A2208205042

PLN 42.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. A2215457832

Mercedes W221 Steering Column Wheel Angle Sensor Control Unit A2215457832

PLN 284.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2219004704

Mercedes-Benz S W221 Comand 6-Changer CD Radio Head Unit DVD Navi A2219004704

PLN 2,849.95

Free delivery - Tue, Jan 13

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Part no. A0009002308

Mercedes W447 W906 Adblue Module Exhaust Gas Control Unit ECU A0009002308

PLN 189.95

Free delivery - Tue, Jan 13

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Part no. A9065400341

Battery Cable Mercedes Sprinter W906 Negative Lead Wiring Harness A9065400341

PLN 51.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. A9078209400

Mercedes Sprinter W907 W910 Radio Stereo Player Head Unit A9078209400

PLN 427.95

Free delivery - Tue, Jan 13

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Part no. A1769980001

Door Wiring Plug Mercedes W176 W246 Cable Lead Connector A1769980001

PLN 47.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. A0035455005

Mercedes W202 W210 Kick Down Kickdown Relay Electrical Module Unit A0035455005

PLN 47.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. A0009006302

Mercedes W176 Automatic Gearbox Transmission Module Control Unit ECU A0009006302

PLN 142.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2059001240

Mercedes GLC 220d X253 Air Conditioning Climat A/C Control Module A2059001240

PLN 142.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2049005205

Mercedes W204 Dashboard Stereo Display Screen Sat Nav Multimedia A2049005205

PLN 94.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A1694710141

Mercedes W169 W245 Fuel Pump Cable Harness Bracket Mount Trim A1694710141

PLN 42.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. A2469004512

Mercedes-Benz A M Class W166 W176 Parking Brake Control Unit Module ECU

PLN 70.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A0035420219

Relay Mercedes W639 W906 5-Pin Black 12A A0035420219

PLN 42.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. A0009062822-1

Mercedes W207 W212 W906 Engine Diesel 200A 14V Alternator Generator LRA03818

PLN 436.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2045402610

Mercedes W204 Cable Harness Rear Door Panel Card Wiring Loom A2045402610

PLN 42.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. A2198202426

Mercedes CLS W219 Door Module Front Right O/S Control Unit A2198202426

PLN 42.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. A2213201058

Mercedes R231 Valve Block Air Suspension Control Unit A2123200358

PLN 854.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2075405105

Mercedes W204 C207 W212 Panoramic Sunroof Wiring Cable Harness A2075405105

PLN 94.95

Free delivery - Tue, Jan 13

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Part no. A9064407353

VW Crafter I Mercedes Sprinter W906 Fuel Tank Wiring Loom Cable A9064407353

PLN 42.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. A2038219751-1

Mercedes-Benz C-Class W203 Alarm Sensor Module Unit A2038219751

PLN 65.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A1715409245

Mercedes SLK R171 Gateway Control Unit Gateway Module ECU A1715409245

PLN 75.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2129018508

Mercedes W212 Air Bag Control Unit ECU AirBag Sensor Module A2129011105

PLN 151.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A0009004434-2

Parking Control Module Mercedes C118 W177 W247 PDC Bluetooth Unit A0009004434

PLN 427.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2059006213

Mercedes W205 Rear Door Module Control Unit ECU Left N/S A2059006213

PLN 94.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2535400701

Mercedes A238 M276 Engine Alternator Wiring Loom Harness A2535400701

PLN 189.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2048708626

Mercedes W212 Media Interface Control Module Unit ECU A2048708626

PLN 42.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. A2045400708

Mercedes-Benz W204 Parking Sensor Wiring Cable Harness Rear PDC A2045400708

PLN 94.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A6561593100

Mercedes W213 OM656 Diesel Engine Wiring Guide Cable Duct A6561593100

PLN 94.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A1698200611

Mercedes W245 Bluetooth Module Telephone Control Unit A1698200611

PLN 379.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2074405433

Mercedes-Benz E W207 Cabrio A207 AdBlue Additive Fuel Tank Wiring Adapter Cable

PLN 42.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. A2741501802

Mercedes W213 Engine Wiring Harness Cable Loom A2741501802

PLN 759.95

Free delivery - Tue, Jan 13

If paid before 14:00

...

Showing 694-792 of 3212 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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