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. A0015423723

Mercedes A E Class W169 W211 Parking Sensor Display Control PDC A0015423723

PLN 47.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. A1729008206

Interface Module Mercedes W176 W204 W212 Multimedia Control Unit A1729008206

PLN 85.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2215408445

Mercedes W221 Radar Distronic Adaptive Cruise Control Sensor A2215408445

PLN 1,614.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2079011700

Airbag Module Mercedes W204 W207 Air Bag SRS Control Unit ECU A2079011700

PLN 66.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A1718600205

Mercedes R171 Passenger Seat Air Module Control Unit Module A1718600205

PLN 189.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A1715400107

Mercedes SLK R171 Window Lifter Lift Switch Cable Wiring Harness A1715400107

PLN 42.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. A1695450001

Mercedes-Benz A B Class W169 W245 Fuse Box Relay Module Unit A1695450001

PLN 47.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. A2215402062

Fuel Pump Module Mercedes ML W164 W204 Petrol Control Unit ECU A2215402062

PLN 85.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A0141541102

Alternator Generator Mercedes W204 W207 Diesel Engine Valeo 150A A0141541102

PLN 379.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A6394405009

Wiring Loom Mercedes W639 Vito Cable Door Wiring Cable A6394405009

PLN 37.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. A2125406105

Mercedes W212 Rear LED Wiring Cable Harness Loom A2125406105

PLN 123.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2215400850

Mercedes W221 Fuse Box Relay Control Unit Module A2215400850

PLN 142.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A1728202989

Mercedes SLK R172 Roadster Antenna Amplifier Control Module A1728202989

PLN 85.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2479003506

Mercedes W177 Front Seat Module Control Unit Memory Driver's Side A2479003506

PLN 807.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 283930431R

Roof Microphone Mercedes Citan W415 Interior Mic Unit Wiring Cable 283930431R

PLN 61.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A1645403572-1

Mercedes W164 W251 Fuse Box Relay Module Control Unit A1645403572

PLN 664.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A0009004802

Air Module Mercedes W639 W906 ECU Control Unit Crash Impact A0009004802

PLN 42.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. A2139005213

Mercedes W213 Door Control ECU Module Front Left N/S A2139005213

PLN 142.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2129014606-1

Mercedes W212 Display Screen Information Navigation Dashboard A2129014606

PLN 332.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A1664409735

Mercedes ML W166 Battery Cable Alternator Starter Motor Wiring A1664409735

PLN 142.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2045452647

Mercedes W204 Aerial Antenna Control Unit Bracket Holder Mount A2045452647

PLN 61.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2118703385

Mercedes W211 Door Module Rear Left N/S Control Unit ECU A2118703385

PLN 66.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2479001306

Mercedes W177 W247 SAM Module Body Comfort Control Unit A2479001306

PLN 427.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A0005400764

Mercedes W205 Battery Negative Ground Bonding Line Wire Earth Cable A0005400764

PLN 132.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2129000217

Mercedes W212 Radio Head Unit Navi CD Player Control Unit A2129000217

PLN 949.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2539008007

Mercedes X253 Rain And Light Sensor Control Unit Module ECU A2539008007

PLN 61.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2479005707

Mercedes W177 Front Seat Left N/S Module Control Unit ECU A2479005707

PLN 474.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2035407308

Mercedes-Benz C-Class W203 Rear Left Right Door Wiring Loom Harness A2035407308

PLN 42.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. A2535401001

Battery Cable Mercedes C238 C253 Starter Alternator Wiring Harness A2535401001

PLN 142.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2128201789

Mercedes W212 Antenna Amplifier Aerial Module C Pillar Left N/S A2128201789

PLN 42.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. A2049000300

Mercedes W212 Media Interface Control Unit Module Communication A2049000300

PLN 42.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. A2055451500

Power Connection Mercedes W205 W213 C238 X253 Battery Starter Alternator Wiring

PLN 123.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2469002616

Mercedes W176 W246 PDC Parking Distance Sensor Control Unit Module A2469002616

PLN 142.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2469009112

Control Unit Mercedes W176 W246 Body Control Module BCM ECU A2469009112

PLN 161.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2229001408

Module Mercedes S205 Trunk Rear Tuner Digital Radio DAB Control Unit A2229001408

PLN 93.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2139007436

Mercedes W177 W213 Gearbox Transmission Control Module Unit ECU A2139007436

PLN 379.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2749062100

Starter Motor Mercedes W213 C238 C253 Engine A2749062100

PLN 142.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2465407632

Battery Cable Mercedes W176 W246 Positive Wiring Starter Harness A2465407632

PLN 474.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A0009008905

Windscreen Camera Mercedes W207 W212 W246 Front Control Unit Module A0009008905

PLN 189.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2059003222

Door Module Mercedes W205 W253 Control Unit Module Front Right O/S A2059003222

PLN 94.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2059006651

Mercedes C205 GLC C253 Body Control Comfort Module Unit SAM BCM A2059006651

PLN 949.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A1765406708

Mercedes W176 Door Harness Loom Cable Wiring Rear Left Right N/O/S A1765406708

PLN 85.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2115454840

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

PLN 42.95

Delivery - Tue, Jan 13

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 - Tue, Jan 13

If paid before 14:00

Part no. A2139003617

Telematics Module Mercedes W176 W207 W205 Bluetooth Control Unit A2139003617

PLN 61.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2045420623

Mercedes W204 Warning Device Parktronic Display Rear Sound Signal A2045420623

PLN 85.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2049006009

Mercedes W204 Navigation CD Player Radio Stereo Sat Nav Head Unit A2049006009

PLN 569.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2769004901

Mercedes A238 Convertible E450 M276.823 Engine ECU Unit A2769004901 Automatic

PLN 1,899.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A0131541702

Alternator Mercedes W638 OM611 Engine Alternator Generator A0131541702

PLN 283.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A1569057900

Mercedes W176 Aerial Antenna Amplifier A1569057900

PLN 37.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. A2045451047

Control Unit Bracket Mercedes W204 W212 Audio Module Holder Mount A2045451047

PLN 42.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. A2469016002-1

Display Screen Mercedes W176 W246 Central Information Dashboard Dash A2469016002

PLN 332.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A6421509777-1

Mercedes W221 S320 CDI 232HP Engine Control Module ECU Set A6421509777 Automatic

PLN 1,139.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A9075402087

Mercedes W907 Starter Wiring Battery Alternator Cable Harness Loom A9075401305

PLN 227.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2139005613

Mercedes W213 Front Door Module Right O/S Control Unit A2139005613

PLN 94.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2711508033

Mercedes W204 Engine Wiring Harness Cable Loom A2711508033

PLN 1,234.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2055455100

Mercedes W205 W213 C238 Power Distribution Unit Busbar Connector A2055455100

PLN 142.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2059007539

Fuse Box Mercedes S205 Interior Front Relay Fuse Box Sam Module A2059007539

PLN 474.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A1669008606

Seat Module Mercedes W176 W246 Front Left N/S Memory Control Unit A1669008606

PLN 332.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2059006047

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

PLN 474.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A1635403110

Mercedes-Benz M ML W163 Rear Left Right Door Wiring Loom Harness A1635403233

PLN 42.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. A2218207502

Mercedes W221 Front Centre Dashboard Speaker Logic 7 A2218207502

PLN 142.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A1645407901

Mercedes V251 Gateway Module Control Unit ECU A1645407901

PLN 332.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2045458401

Mercedes W204 Fuse Box Terminal Connection Unit A2115452301

PLN 854.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A1725400035

Electrical Cable Mercedes R172 Transmission To Body Wiring Harness A1725400035

PLN 47.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. A2059009643

Mercedes W205 Telematics Bluetooth Module Control Unit ECU A2059009643

PLN 189.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. rhd-A1185407902

Mercedes C118 Front Door Left Right N/O/S Electrical Wiring Harness A1185407902

PLN 113.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A1729006609-2

Mercedes SLK R172 Radio CD Player Sat Nav Comand Head Unit A1729006609

PLN 617.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A1775405801

Mercedes W177 W247 Door Wiring Rear Left Right Cable Harness A1775405801

PLN 47.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. A2049001506

Mercedes W204 Coupe Door Module Front Right O/S Control Unit A2049001506

PLN 75.95

Free delivery - Tue, Jan 13

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 - Tue, Jan 13

If paid before 14:00

Part no. A2479002613

Mercedes CLA C118 W177 W205 W213 Telematics Control Unit Module A2479002613

PLN 151.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A0009061705

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

PLN 522.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2469060093

Fuse Box Mercedes W176 OM607 Front Relay Control Unit Module A2469060093

PLN 94.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A0009827723

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

PLN 42.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. A2139005009

Mercedes W213 Door Module Rear Right O/S Control Unit A2139005009

PLN 66.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A6519000601-3

Mercedes Sprinter W906 313 CDI 651.955 129HP Engine ECU Kit A6519000601 Manual

PLN 854.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2059006615

Mercedes W205 Windscreen Rain Sensor Front Control Unit A2059006615

PLN 42.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. A2079052800

Mercedes-Benz E-Class W207 Cabrio A207 Anti Theft Alarm Module Control Unit ECU

PLN 94.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2048704626

Door Module Mercedes W204 Rear Right O/S Control Unit Module A2048704626

PLN 47.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. A2059008118

Telematics Module Mercedes W176 W205 W218 Communication Control Unit A2059008118

PLN 47.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. A2075403434

PDC Wiring Mercedes W204 W207 Parktronic Parking Sensor Cable Rear A2075403434

PLN 75.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A6396890279

Mercedes Viano Vito W639 Radio Fan Adapter Control Unit Module A6396890279

PLN 42.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. A2749000800-5

Mercedes W205 C200 274.920 184HP Engine ECU Kit A2749000800 Key Lock Automatic

PLN 1,092.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2034404432

PDC Wiring Mercedes CL203 Front Bumper Parking Sensor Loom Cable A2034404432

PLN 284.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A4475400600

Mercedes Vito W447 Battery Cable Alternator Wiring Diesel OM651 A4475400600

PLN 142.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A1693300907-1

Mercedes A B W169 W245 Front Left N/S Suspension Control Track Arm A1693300907

PLN 42.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. A2215450601

Mercedes W221 Dashboard Fuse Box Front Left N/S Control Module A2215450601

PLN 75.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A1679004511

Door Module Mercedes W205 W213 C253 Rear Left N/S Control Unit ECU A1679004511

PLN 265.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A1779005509

Door Module Mercedes C118 W177 H243 Rear Left N/S Door Control A1779005509

PLN 284.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A0045428718-1

Mercedes W203 W211 Parking Distance Sensor PDC Iridium Bright Silver

PLN 94.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2055409750

Door Harness Mercedes W205 Rear Left N/S Door Wiring Loom A2055409750

PLN 94.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A1779061102

Fuse Box Mercedes W177 Relay Fuse Box COntrol Module Unit A1779061102

PLN 284.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2661538979-1

Mercedes W169 A150 W245 B150 Engine Control ECU Kit A2661538979 + Key Automatic

PLN 1,101.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2229005914

Mercedes W205 Rear SAM Module Control Unit A2229005914

PLN 237.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2059001611

Mercedes W205 Door Module Front Right O/S Control Unit ECU A2059001611

PLN 85.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A4475406453

Battery Cable Mercedes Vito W447 Diesel OM651 Alternator Wiring A4475406453

PLN 94.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2129004206

Door Module Mercedes W212 E-Class Rear Right O/S Control Unit A2129004206

PLN 42.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. A2518703390

Mercedes W251 Rear Passengers Entertainment Control Unit A2518703390

PLN 331.95

Free delivery - Tue, Jan 13

If paid before 14:00

...

Showing 496-594 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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