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. A2045408735

Mercedes W204 Front Seat Air Module Wiring Cable Front Right A2045408735

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. A2129004025

Mercedes W212 Fuse Box Relay Control Unit Module SAM A2129004025

PLN 474.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. A2048207885

Mercedes-Benz C-Class W204 Rear Right Door O/S Control Unit Module A2048207885

PLN 18.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. A2129009128

Door Module Mercedes W207 W212 CLS W218 Front Left N/S Control Unit A2129009128

PLN 75.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. A6519007500-17

Mercedes C207 E220 CDI OM651.911 BE Engine Unit Module ECU A6519007500 Automatic

PLN 118.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. A1728200815

Mercedes W204 C207 Centre Console Aux Port Socket Plug Terminal A1728200815

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. A1669051702

Mercedes-Benz A C M W166 W176 W205 Aerial Antenna Amplifier Unit A1669051702

PLN 47.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. A0035421619-1

Mercedes W177 Relay 052 Fuse Box Relay Slot B D E 70A Tyco SET X2 A0035421619

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. A0009061705

Mercedes W205 C63 Petrol Engine 14V 200A Alternator Generator Unit A0009061705

PLN 522.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. A9065450003

Fuse Cover Mercedes Sprinter W906 Box Trim Panel Lid Grey A6395450003

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. A0015424623

Mercedes A207 W204 W212 Front Parking PDC Display Panel A0015424623

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. A2469009312-1

Mercedes W176 Radio Stereo Head Unit Media Player Navigation A2469009312

PLN 379.95

Free delivery - Mon, Nov 24

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Part no. A1695406945

Mercedes SLK R171 Gateway Control Unit Gateway Module ECU A1715405145

PLN 142.95

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Part no. A0025427219

Mercedes W169 W245 W204 W212 Relay 4-Pin Black Hella A0025427219

PLN 42.95

Delivery - Mon, Nov 24

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Part no. A2468200526

Seat Module Mercedes W176 W246 Control Unit Front Left Right N/O/S A2468200526

PLN 189.95

Free delivery - Mon, Nov 24

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Part no. A1636801080

Mercedes ML W163 Cover Footwell Fuse Box Trim Right A1636801080

PLN 61.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. A1718300272

Mercedes A B ML Class W166 W169 W245 Interior Temperature Sensor A1718300272

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. A1775402811

Mercedes W177 W243 W247 Rear Door Wiring Harness Cable Left N/S A1775402811

PLN 142.95

Free delivery - Mon, Nov 24

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Part no. A2044401001

Parktronic Module Mercedes W204 PDC Parking Sensors Control Unit A2044401001

PLN 61.95

Free delivery - Mon, Nov 24

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Part no. A2229002109

Mercedes W205 W222 Door Module Control Unit Rear Right O/S A2229002109

PLN 94.95

Free delivery - Mon, Nov 24

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Part no. A2465400335

Mercedes W176 W246 Negative Earth Cable Battery Terminal Wiring A2465400335

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. A0009051600

Mercedes W207 W212 W221 Front Windscreen Windshield Camera A0009051600

PLN 85.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. A2075404207

Mercedes W204 M276 NOX Sensor Adapter Right O/S Harness Wiring Cable A2075404207

PLN 142.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. A2465400512

Seat Wiring Mercedes C117 Front Seat Left Wiring Harness a2465400512

PLN 94.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. A9075401805

Mercedes Sprinter W907 Battery Terminal Unit Connection Box A9075401805

PLN 123.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. A2539000100

Rain Light Sensor Mercedes X253 Windschield Sensor Module Unit A2539000100

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. A2229003210

Mercedes W205 Head Unit Audio Player Radio Sat Nav Module A2229003210

PLN 189.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. A1775408312

Door Wiring Mercedes W177 W247 Driver Side Cable Harness Loom A1775408312

PLN 94.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. A6396641914

Mount Support Mercedes Vito W639 Battery Bracket Holder Mounting A6396641914

PLN 37.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. A2059008218

Telematics Module Mercedes W176 W205 W218 Communication Control Unit A2059008218

PLN 94.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. A2229001414

Module Mercedes C205 Front Door Left N/S Control Module Unit A2229001414

PLN 75.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. A2649001200-4

Mercedes W177 A35 AMG 306HP 260.920 4Matic Engine ECU Control Unit A2649001200

PLN 664.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. A2465400308-1

Mercedes W176 W246 OM651 Alternator Cable Battery Prefuse Box A2465400308

PLN 75.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. A2108207626

Mercedes-Benz C E W202 W210 Front Right Door O/S Control Module A2108207626

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. A2139002422

Mercedes W213 Front Door Module Control Module Unit Right O/S A2139002422

PLN 237.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. A1669005612

Door Module Mercedes ML W166 Rear Right O/S Door Control Unit A1669005612

PLN 61.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. A2059004021

Mercedes W205 GLC X253 Door Module Control Unit Front Left N/S A2059004021

PLN 61.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. A0025421119-1

Relay Unit Mercedes W163 W168 W203 W211 4-Pin Black Hella A0025421119 Set 2x

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. A1679006613

Mercedes W177 Sliding Roof Module Sunroof Panoramic Control Unit A1679006613

PLN 379.95

Free delivery - Mon, Nov 24

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Part no. A6229001000

Mercedes W447 114CDI OM622.851 136HP Engine Control Unit Manual A6229001000

PLN 1,424.95

Free delivery - Mon, Nov 24

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Part no. A0045467740

Mercedes W447 Drive Train Sensor Can Distributor A0045467740

PLN 94.95

Free delivery - Mon, Nov 24

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Part no. A1649100075

Mercedes ML W164 Lumbar Module Front Seat Lumbar Control Unit A1649100075

PLN 218.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. A2078202910

Seat Control Module Mercedes A207 W207 Cabrio Rear Control Unit ECU A2078202910

PLN 56.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. A0009003806

Mercedes W205 Park Parking Assist PDC Distance Control Unit Module A0009003806

PLN 365.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. A2044404732

Mercedes W204 Estate PDC Wiring Rear Bumper Parking Sensor Cable A2044404732

PLN 94.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. A0009001810

Windshield Camera Mercedes W166 R172 Driver Assist Front Camera A0009001810

PLN 379.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. A1695405645

Mercedes W169 SAM Control Module Fuse Box Unit A1695405645

PLN 94.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. A0025450601

Mercedes W906 Fuse Relay Box Module Control Unit A0025450601

PLN 123.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. A2078202810

Mercedes W207 Convertible Anti Theft Roof ITS TPS Sensor Module Unit A2078202810

PLN 61.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. A6519007500-16

Mercedes W204 C220 CDI 651.911 Engine Control Unit ECU A6519007500 Automatic

PLN 142.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. A6541592200

Mercedes X253 Engine Wiring Cable Cover Duct Bracket Channel OM654 A6541592200

PLN 189.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. A1725401450

Mercedes SLK R172 Fuse Box Power Distribution Control Module Unit A1725401450

PLN 94.95

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. A0045423918

Yaw Sensor Mercedes ML W164 W221 W251 ESP Rotation Rate Unit Module A0045423918

PLN 75.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. A0038206326

Mercedes W221 Door Module Front Door Left N/S Control Module A0038206326

PLN 75.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. A0003427200

Mercedes EQA350 H243 4matic Electric Voltage Converter Module A0003427200

PLN 1,614.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. A1179005800

Mercedes W176 Airbag Belts System Control Unit Module ECU Bosch A1179005800

PLN 189.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. A2129005300

Seat Module Mercedes W204 W212 Control Unit Front Left Right N/O/S A2129005300

PLN 237.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. A1779005409

Door Module Mercedes C118 W177 H243 Front Right O/S Door Control A1779005409

PLN 284.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. A6421509478-3

Mercedes W164 ML320 OM642.940 224 HP 4Matic Engine ECU Kit A6421509478 Automatic

PLN 1,139.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. A6394404906

Mercedes-Benz Vito W639 Loudspeaker Cable Wiring Loom Harness A6394404906

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. A2215403110

Mercedes W221 Positive Battery Cable Wire A2215403110

PLN 94.95

Free delivery - Mon, Nov 24

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Part no. A0005468502

Battery Cover Mercedes W205 W212 Battery Positive Pole Cover Red A0005468502

PLN 47.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. A2039000000-1

Mercedes CL203 Head Unit CD Player Radio Audio Controller Unit A2039000000

PLN 379.95

Free delivery - Mon, Nov 24

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Part no. A2059006047

SAM Module Mercedes W205 GLC X253 Rear Comfort Control Unit ECU A2059006047

PLN 474.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. A2709000900-4

Mercedes W176 A45 4Matic M133.980 381HP Engine Control ECU A2709000900 Automatic

PLN 2,374.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. A0009820912

Mercedes W176 W222 W246 Voltage Converter Power Distributor Fuse A0009820912

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. A1775401629-1

Mercedes W177 Rear Bumper PDC Wiring Loom Parking Sensor A1775401629

PLN 94.95

Free delivery - Mon, Nov 24

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Part no. A2229063202-1

Fuse Box Mercedes W205 W222 Electrical Relay Box Module Unit A2229063202

PLN 94.95

Free delivery - Mon, Nov 24

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Part no. A2129009505

Mercedes W212 PDC Parking Distance Control Unit Module Sensor A2129009505

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. A1645453047

Mercedes ML W164 Trunk Tailgate Foam Control Unit Module Bracket A1645453047

PLN 61.95

Free delivery - Mon, Nov 24

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Part no. A1729058300

Mercedes SLK R172 Pedestrian Protection Impact Crash Sensor Module A1729058300

PLN 142.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. A2218207389

Mercedes W221 Seat Headrest Display Monitor Rear Entertainment Unit A2218207389

PLN 902.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. A2535401401

Mercedes X253 Battery Wiring Harness Cable Tray Clamp A2535401401

PLN 94.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. A0009058112

Mercedes C118 W177 W247 Negative Battery Terminal Cable Lead A0009058112

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. A6519005301-5

Mercedes W212 E220CDI BlueEFFI OM651.924 170HP Engine ECU A6519005301 Automatic

PLN 427.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. A1679001420

Central Locking Module Mercedes C118 W177 Door Lock Control Unit A1679001420

PLN 379.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. A1729006503

Mercedes SLK R172 Roadster Folding Roof Module Vario Control Unit A1729006503

PLN 237.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. A1669000318

Mercedes-Benz A B Class W176 W246 Front Left N/S Door Control Unit Module ECU

PLN 123.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. A0025428819-1

Mercedes W176 W246 Relay Current 4 Pin 12V Hella A0025428819 Set x2

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. A2048704426

Door Module Mercedes W204 S204 Front Right O/S Control Unit A2048704426

PLN 75.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. A4209003305

Mercedes Sprinter W907 W910 Radio Stereo Player Head Unit Module A4209003305

PLN 759.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. A2035409213

Mercedes W203 Door Wiring Harness Front Left Right N/O/S Wiring Loom A2035409213

PLN 70.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. A2075454440

Mercedes-Benz E-Class A207 Convertible Control Unit Module Bracket Trunk

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. A0009827723

Fuse Relay Mercedes W176 W204 W246 4-Pin Unit Black Hella A0009827723

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. A2219000804

Parking Module Mercedes W221 W216 Sensor PDC Distance Control Unit A2219000804

PLN 94.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. A1636801080-1

Mercedes-Benz M-Class ML W163 1 Cover Footwell Fuse Box Trim Right A1636801080

PLN 65.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. A2661540902

Alternator Generator Mercedes W169 W245 Engine 115A 14V A2661540902

PLN 284.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. A2045409533

Mercedes W204 Door Wiring Front Right O/S Door Cable Harness A2045409533

PLN 75.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. A2036901430

Mercedes C CLC Class CL203 W203 Rear SAM Unit Fuse Box Trim Cover A2036901430

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. A2135403839

Mercedes W213 C238 Power Relay Fuse Box Unit Cover A2135403839

PLN 237.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. A1669003309

Mercedes W176 W204 W246 Headlight Headlamp Range Control Unit Module A1669003309

PLN 179.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. A0325453132

Gearbox Module Mercedes SLK R171 Automatic Transmission Unit EGS A0325453132

PLN 61.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. A2139008822

Air Module Mercedes W213 C238 Control Unit Module ECU A2139008822

PLN 142.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. A2215408045

TPM Module Mercedes W221 S500 C216 Tire Pressure System Module RDK A2215408045

PLN 42.95

Delivery - Mon, Nov 24

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 - Mon, Nov 24

If paid before 14:00

Part no. A2124406207

Negative Cable Mercedes W212 Battery Earth Wiring Loom A2124406207

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. A1649100075-1

Mercedes ML W164 Lumbar Module Front Seat Lumbar Control Unit A1649100075

PLN 237.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. A2118206185

Mercedes E S Class W211 W220 Telephone Hands Free Control Module A2118206185

PLN 47.95

Delivery - Mon, Nov 24

If paid before 14:00

...

Showing 298-396 of 3165 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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