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. A2129005200

Seat Module Mercedes W204 W212 Memory Control Unit Driver's Side A2129005200

PLN 189.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A1729060005

Mercedes R172 Rear SAM Fuse Relay Box A1729060005

PLN 379.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A1644400937

Mercedes ML W164 Rear Bumper PDC Wiring Parking Sensor Loom Harness A1644400937

PLN 151.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A1645451840

Mercedes W164 ECU Control Unit Bracket Holder A1645451840

PLN 42.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. A9079003207

Mercedes W907 Air Suspension Level Control Unit Module Airmatic A9079003207

PLN 617.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A6261500075

Mercedes W205 Alternator Protective Cover Metal Sheet A6261500075

PLN 47.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. A2465400140

Mercedes-Benz A-Class W176 Equipment Electrical Cover Fuse Box A2465400140

PLN 46.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. A2079059702

Mercedes-Benz W207 A207 Radio Aerial Antenna Amplifier Module Unit Right O/S

PLN 47.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. A2198203526

Mercedes CLS W219 Door Module Rear Left N/S Control Unit A2198203526

PLN 42.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. A2319009106

Door Module Mercedes R231 Front Door Right O/S Control Module A2319009106

PLN 189.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A0009067702

Alternator Generator Mercedes W204 W207 W212 Engine Diesel 180A 14V A0009067702

PLN 379.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2125409110-1

Console Lightning Mercedes W212 Centre LED Selector Cable Wiring A2125409110

PLN 42.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. A0009050254

Mercedes W212 Negative Battery Cable Terminal Wiring A0009050254

PLN 61.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A1698208026

Mercedes W169 Door Control Module Right Front O/S A1698208026

PLN 42.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. A2129008825

Mercedes C204 Fuse Box Control Unit SAM Module Relay A2129008825

PLN 474.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A6398200642

Mercedes Viano Vito W639 Radio Fan Adapter Control Unit Module A6398200642

PLN 85.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A1031550435

Mercedes W124 M103 Bracket Alternator Mount Holder Support A1031550435

PLN 94.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2045409907

Mercedes W204 Battery Wiring Cable Harness Loom A2045409907

PLN 104.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2049002002

Mercedes W204 C207 Air Suspension Dynamic Level Control Unit Module A2049002002

PLN 161.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A6229000700

Mercedes W447 Bosch Glow Plug Relay Controller Unit Control Module A6229000700

PLN 332.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A0009004839

Mercedes C118 W177 C247 Battery Control Module Unit ECU A0009004839

PLN 1,519.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A9075401205

Mercedes W907 Starter Wiring Battery Alternator Cable Harness Loom A9075401205

PLN 113.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A9075409482

Fuse Box Mercedes Sprinter W907 Prefuse Box Module Relay Holder A9075409482

PLN 142.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2079012500

Air Module Mercedes C204 C207 Sensor Control Unit ECU A2079012500

PLN 142.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A6401500100

Mercedes W169 A160 CDI OM640.942 82HP Engine Control ECU A6401500100 Automatic

PLN 474.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. lhd-A2215403310

Mercedes W221 Battery Electrical Ground Line Wire Earth Cable A2215403310

PLN 94.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A0009009639

Mercedes EQA350 H243 4matic DC Current Charge Connection Module OBL + BR293

PLN 3,799.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A1698209226

Door Control Module Mercedes W169 W245 Relay Unit Right Rear O/S A1698209226

PLN 61.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 8589948

BMW G20 G21 Positive Battery Cable Wiring Loom 8589948

PLN 94.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A4475400082

Mercedes Vito W447 Fuse Box Cover Trim Panel Lid Housing A4475400082

PLN 237.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A1648209385

Mercedes ML W164 Door Module Front Left N/S Control Unit Module A1648209385

PLN 142.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2135409616

Mercedes Sprinter W910 Battery Sensor Negative Terminal Cable Wiring A2135409616

PLN 61.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2465400340-2

Mercedes W176 Fuse Relay Box Control Unit A2465400340 A2465400140

PLN 65.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2229005118

Mercedes W205 Ambient Color Light Module ECU A2229005118

PLN 70.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A0009008718

Climate Control Module Mercedes W205 W213 Air Conditioning A/C Unit A0009008718

PLN 94.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2075451740

Mercedes-Benz A207 W207 Cabrio Control Unit Module Bracket Holder A2075451740

PLN 66.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2135452840

Mercedes W213 ECU Bracket Control Unit Module Holder Mount A2135452840

PLN 56.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. A2469009212

Mercedes X117 Tailgate Boot Control Rear Module Unit A2469009212

PLN 189.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2045400150

Mercedes-Benz C E Class W204 W207 Fuse Distribution Box Interior A2045400150

PLN 113.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A6681530979

Mercedes W168 A 160 CDI OM668 Engine Control Module A6681530979

PLN 108.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2059006013

Door Module Mercedes W205 Front Right O/S Door Control Module Unit A2059006013

PLN 56.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. A2709000900-8

Mercedes W246 B180 270.910 122HP ECU Wiring Loom Harness Cable Plug A2709000900

PLN 94.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A1729007313

Mercedes SLC R172 PDC Parking Sensor Module Unit ECU A1729007313

PLN 379.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2710106644-2

Mercedes R171 SLK200 M271.944 163HP Engine Control ECU Kit A2710106644 Key Lock

PLN 1,044.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2038700326

Mercedes CLC CL203 Front Left N/S Door Control Module Unit A2038700126

PLN 66.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A1668203426

Mercedes W166 C292 Front Seat Adjuster Module Unit Left Right N/O/S A1668203426

PLN 189.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A4475408347

Mercedes Vito W447 OM622 Engine Starter Wiring Harness A4475408347

PLN 61.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2079011800

Mercedes W204 W207 Control Unit ECU Sensor Module Air SRS Bag A2079011800

PLN 237.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A1175401205

Mercedes C117 Drivers Door Wiring Harness A1175401205

PLN 61.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2054402834

Mercedes W205 Parking Sensor Wiring Rear Bumper PDC Loom Cable A2054402834

PLN 189.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2535409530

Mercedes X253 Hybrid Engine Wiring Harness Loom Cable A2535409530

PLN 142.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2579005100

Mercedes Sprinter W907 Telematics Services Communication Module A2579005100

PLN 474.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2219005404

Mercedes R231 Seat Memory Control Unit Module Front Right A2219005404

PLN 1,662.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2045420323

PDC Display Mercedes W204 Front Parking Sensor Screen Control Unit A2045420323

PLN 61.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2469067100-1

Mercedes W176 W246 C117 Fuse Relay Box Unit Cables Wiring Loom A2469067100

PLN 61.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2215406562

Mercedes W204 Petrol Fuel Pump Control Unit Module A2215406562

PLN 142.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2034400033

Mercedes CLC CL203 Wiring Loom Cable Door Front Left Right N/O/S A2034400033

PLN 47.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. A2049007508

Mercedes W204 Display Screen Monitor Radio Sat Nav Navigation Unit A2049007508

PLN 94.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A6549009600-3

Mercedes GLC 220d X253 654.920 194HP 4Matic Engine Control Unit A6549009600

PLN 854.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A1645403230

Mercedes ML W164 Positive Battery Terminal Cable Lead Wiring A1645403230

PLN 123.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2469066600

Fuse Box Mercedes W156 W176 W246 Front Relay Control Unit Module A2469066600

PLN 113.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2229000905

Mercedes W205 PDC Park Assist Control Module Ecu A2229000905

PLN 94.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A0038201926

Mercedes W221 Door Crash Impact Sensor Rear Left Right N/O/S A0038201926

PLN 61.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2475400600

Mercedes W177 Rear Axle Wheel RPM Speed Right Sensor Wire Harness A2475400600

PLN 85.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2215460935

Mercedes W221 W216 Fuse Box Cover Control Unit Trim Panel Lid A2215460935

PLN 42.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. A0035420219-3

Mercedes W639 W906 Relay 5-Pin Control Unit 12A Blue A0035420219

PLN 61.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A6394460446

Mercedes Vito W639 PDC Parking Distance Control Unit Module ECU A6394460446

PLN 123.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2139008430

Mercedes W910 Gearbox Control Module A2139008430

PLN 113.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2129002216

Mercedes W212 Display Screen Information Navigation Dashboard A2129002216

PLN 436.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2215408507

Mercedes W221 Door Wiring Harness Cable Front Left Right N/O/S A2215408507

PLN 94.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2038202285

Mercedes-Benz C-Class W203 Door Control Module Right Rear O/S A2038202285

PLN 42.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. A2075844181

Mercedes C207 Fuse Box Grouping Fuse Placement Map Card Diagram A2075844181

PLN 94.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2469004313

Gearbox Module Mercedes W176 Automatic Transmission Unit ECU A2469004313

PLN 61.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2710106644-1

Mercedes R171 SLK200 M271.944 163HP Engine Control ECU A2710106644 Automatic

PLN 617.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2129004407

Display Screen Mercedes W204 W212 Information Navigation Dashboard A2129018103

PLN 237.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2218200210

Mercedes W221 Seat Occupancy Mat Control Unit Sensor A2218200210

PLN 142.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2129069900

Player Audio Mercedes C207 W212 Head Unit CD Media Radio Controller A2129069900

PLN 142.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2055403706

Mercedes W205 Front Axle Damper Adjustment Left N/S Wiring Harness A2055403706

PLN 123.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A1648205685

Air Module Mercedes ML W164 W251 SRS Control Unit ECU A1648205685

PLN 104.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A6399001001

Mercedes W639 PDC Parking Park Sensor Distance Control Module A9064460046

PLN 142.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A1635400441

Mercedes-Benz M-Class ML W163 Ground Cable Right O/S Wheel Arch A1635400441

PLN 93.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2781506020

Cable Beam Mercedes W166 W212 W221 Engine Wiring Harness Loom A2781506020

PLN 94.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2385452700

Mercedes C238 Rear Control Unit Module Bracket Holder Trim Panel A2385452700

PLN 66.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A0009001705

Mercedes C117 PDC Parking Sensor Control Module Unit ECU A0009001705

PLN 265.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A4475402231

Mercedes W447 Sliding Door Wiring Loom Harness Right O/S A4475402231

PLN 113.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2469003014

Mercedes W176 W231 W246 Electric Parking Brake Control Unit Module A2469003014

PLN 47.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. A1679007012

Mercedes C118 W177 W247 Keyless Go Module ECU Entry Control Unit A1679007012

PLN 218.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2661534079

Mercedes W169 A170 266.940 116HP Engine Control Unit ECU A2661534079 Automatic

PLN 474.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2044407441

Earth Ground Cable Mercedes W204 W207 W212 W218 Battery Wiring Loom A2044407441

PLN 42.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. A2123200358

Mercedes-Benz S W221 Valve Block Air Suspension Control Unit Module A2123200358

PLN 474.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A0035420419

Mercedes W177 W205 W247 Relay Fuse Unit Module 4 Pins Black A0035420419

PLN 42.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. A1715400506

Mercedes SLK R171 Rear Bumper PDC Wiring Parking Sensor Loom Harness A1715400506

PLN 170.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2465453740

Mercedes-Benz A B Class W176 W246 Rear Fuel Pump Control Unit Bracket Holder

PLN 42.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. A2469000717

Mercedes C117 X156 All Wheel Drive Control Unit Module ECU MFA A2469000717

PLN 142.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2465405933

Battery Cable Mercedes W176 W246 Terminal Starter Wiring Harness A2465405933

PLN 42.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. A2239053002

Mercedes Vito W447 Aerial Antenna Amplifier Control Unit Module A2239053002

PLN 237.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A1695406945

Mercedes SLK R171 Gateway Control Unit Gateway Module ECU A1715405145

PLN 142.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2199001100

Mercedes W219 Head Unit CD Player Navigation COMAND Radio Audio Unit A2199001100

PLN 1,139.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2513200158-1

Valve Block Mercedes W251 W906 Air Suspension Control Unit Module A2513200158

PLN 142.95

Free delivery - Tue, Jan 13

If paid before 14:00

...

Showing 1090-1188 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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