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. A0009050438

Windscreen Camera Mercedes W204 W212 Front Windshield Camera Unit A0009050438

€28.95

Free delivery - Fri, Nov 21

If paid before 14:00

Part no. A2048704526

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

€23.95

Free delivery - Fri, Nov 21

If paid before 14:00

Part no. A2115452601

Mercedes ML W164 Prefuse Fuse Distribution Box Front A2115452601

€23.95

Free delivery - Fri, Nov 21

If paid before 14:00

Part no. A1645460261

Mercedes W164 Front Right O/S Cable Wiring Duct A1645460261

€23.95

Free delivery - Fri, Nov 21

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Part no. A2129000217

Mercedes W212 Radio Head Unit Navi CD Player Control Unit A2129000217

€256.95

Free delivery - Fri, Nov 21

If paid before 14:00

Part no. A1698209126

Door Module Mercedes W169 W245 Rear Left N/S Control Unit A1698209126

€23.95

Free delivery - Fri, Nov 21

If paid before 14:00

Part no. A1648204326

Mercedes MLW164 Air Module Control Unit ECU Air Module Sensor A1648204326

€28.95

Free delivery - Fri, Nov 21

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Part no. A2049012704

Mercedes W204 ECU Control Unit Crash Impact Sensor Air Module A2049012704

€23.95

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Part no. A2118703226

Mercedes W245 Bluetooth Control Unit Module Hands Free A2118703226

€23.95

Free delivery - Fri, Nov 21

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Part no. A2079013700

Mercedes-Benz E-Class W207 Windscreen Windshield Rain Sensor Control Unit

€23.95

Free delivery - Fri, Nov 21

If paid before 14:00

Part no. A6396641914

Mount Support Mercedes Vito W639 Battery Bracket Holder Mounting A6396641914

€23.95

Free delivery - Fri, Nov 21

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Part no. A9065400341

Battery Cable Mercedes Sprinter W906 Negative Lead Wiring Harness A9065400341

€28.95

Free delivery - Fri, Nov 21

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Part no. A2124405833

Door Wiring Mercedes W212 Loom Cable Rear Left Right N/O/S A2124405833

€23.95

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Part no. A9068270005

Mercedes W639 W906 Voltage Stabilizer Control Unit Module A9068270005

€23.95

Free delivery - Fri, Nov 21

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Part no. A1698705894

Mercedes W169 W245 CD Player Radio Stereo Head Unit A1698705894

€75.95

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Part no. A0025428419

Relay Mercedes W176 W246 4-Pin Black Hella 12V A0025428419

€23.95

Free delivery - Fri, Nov 21

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Part no. A1669003309

Mercedes W176 W204 W246 Headlight Headlamp Range Control Unit Module A1669003309

€42.95

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Part no. A2129003922

Mercedes W212 Fuse Box Rear SAM Relay Control Unit Module A2129003922

€42.95

Free delivery - Fri, Nov 21

If paid before 14:00

Part no. A0025428019

Relay Mercedes W176 W246 4-Pin Black Hella 12V A0025428019

€23.95

Free delivery - Fri, Nov 21

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Part no. A0025428919

Relay Mercedes W176 W246 5-Pin Yellow Hella 12V A0025428919

€23.95

Free delivery - Fri, Nov 21

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Part no. A2124407038

Negative Cable Mercedes W212 Battery Earth Wiring Loom A2124407038

€23.95

Free delivery - Fri, Nov 21

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Part no. A2129004014

Mercedes W204 W212 Front Door Module Control Unit Module Left N/S A2129004014

€23.95

Free delivery - Fri, Nov 21

If paid before 14:00

Part no. A2129001711

Mercedes W212 PDC Parking Distance Control Unit Module Sensor A2129001711

€23.95

Free delivery - Fri, Nov 21

If paid before 14:00

Part no. A2129004314

Door Module Mercedes W204 W212 Front Right O/S Control Unit A2129004314

€23.95

Free delivery - Fri, Nov 21

If paid before 14:00

Part no. A2129004114

Door Module Mercedes W204 W212 Rear Left N/S Control Unit A2129004114

€23.95

Free delivery - Fri, Nov 21

If paid before 14:00

Part no. A2129004414

Door Module Mercedes W204 W212 Rear Right O/S Control Unit Module A2129004414

€23.95

Free delivery - Fri, Nov 21

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Part no. A2129004307

Display Screen Mercedes W204 W212 Information Navigation Dashboard A2129004307

€80.95

Free delivery - Fri, Nov 21

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Part no. A2125409110-1

Console Lightning Mercedes W212 Centre LED Selector Cable Wiring A2125409110

€23.95

Free delivery - Fri, Nov 21

If paid before 14:00

Part no. A2469012504

Mercedes W176 W246 Rain Sensor Light Control Unit Front Windscreen A2469012504

€23.95

Free delivery - Fri, Nov 21

If paid before 14:00

Part no. A6395400150

Mercedes Vito W639 Battery Terminal Fuse Box Control Unit Module A6395400150

€23.95

Free delivery - Fri, Nov 21

If paid before 14:00

Part no. A2075405105

Mercedes W204 C207 W212 Panoramic Sunroof Wiring Cable Harness A2075405105

€28.95

Free delivery - Fri, Nov 21

If paid before 14:00

Part no. A2129005327

Radio Head Unit Mercedes W212 COMAND Navi CD DVD Player Changer A2129005327

€277.95

Free delivery - Fri, Nov 21

If paid before 14:00

Part no. A2039000100

Mercedes CL203 CLC Head Unit CD Player Radio Audio Controller Unit A2039000100

€113.95

Free delivery - Fri, Nov 21

If paid before 14:00

Part no. A2045420323

PDC Display Mercedes W204 Front Parking Sensor Screen Control Unit A2045420323

€23.95

Free delivery - Fri, Nov 21

If paid before 14:00

Part no. A0035420219

Relay Mercedes W639 W906 5-Pin Black 12A A0035420219

€23.95

Free delivery - Fri, Nov 21

If paid before 14:00

Part no. A1669007814

Mercedes W166 W176 Navigation Screen Head Unit Sat Nav Display A1669007814

€123.95

Free delivery - Fri, Nov 21

If paid before 14:00

Part no. A9069006503

Door Module Mercedes W906 Front Left Right N/O/S Control Unit ECU A9069006503

€28.95

Free delivery - Fri, Nov 21

If paid before 14:00

Part no. A6519003403-1

Mercedes W906 314 CDI OM651 Engine Unit Module ECU Kit Key Lock A6519003403

€474.95

Free delivery - Fri, Nov 21

If paid before 14:00

Part no. A2129004407

Display Screen Mercedes W204 W212 Information Navigation Dashboard A2129018103

€56.95

Free delivery - Fri, Nov 21

If paid before 14:00

Part no. A0009004213

Adblue Module Mercedes W447 W906 Control Unit ECU A0009004213

€42.95

Free delivery - Fri, Nov 21

If paid before 14:00

Part no. A0009004802

Air Module Mercedes W639 W906 ECU Control Unit Crash Impact A0009004802

€23.95

Free delivery - Fri, Nov 21

If paid before 14:00

Part no. A2128204713

Seat Wiring Mercedes W212 Front Loom Harness Passenger Side A2128204713

€23.95

Free delivery - Fri, Nov 21

If paid before 14:00

Part no. A2469067100

Mercedes W176 W246 C117 Fuse Relay Box Control Unit Module A2469067100

€37.95

Free delivery - Fri, Nov 21

If paid before 14:00

Part no. A9065450003

Fuse Cover Mercedes Sprinter W906 Box Trim Panel Lid Grey A6395450003

€23.95

Free delivery - Fri, Nov 21

If paid before 14:00

Part no. A2045402410

Mercedes W204 Door Wiring Front Left N/S Door Cable Harness A2045402410

€23.95

Free delivery - Fri, Nov 21

If paid before 14:00

Part no. A2045409533

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

€23.95

Free delivery - Fri, Nov 21

If paid before 14:00

Part no. A9065460121

Mercedes W906 Battery Cable Negative Lead Wiring Harness A9065460121

€28.95

Free delivery - Fri, Nov 21

If paid before 14:00

Part no. A0009050338

Mercedes W212 Multi-Purpose Windscreen Camera Control Unit Module A0009050338

€23.95

Free delivery - Fri, Nov 21

If paid before 14:00

Part no. A0038207726

Mercedes W212 Siren Alarm Horn Signal Module Unit A0038207726

€23.95

Free delivery - Fri, Nov 21

If paid before 14:00

Part no. A2128202289

Mercedes W212 Aerial Antenna Module Amplifier Rear Window Top Left A2128202289

€23.95

Free delivery - Fri, Nov 21

If paid before 14:00

Part no. A2049014503

Mercedes W212 Rain Light Solar Condensation Sensor Control Unit A2049014503

€23.95

Free delivery - Fri, Nov 21

If paid before 14:00

Part no. A2124406207

Negative Cable Mercedes W212 Battery Earth Wiring Loom A2124406207

€23.95

Free delivery - Fri, Nov 21

If paid before 14:00

Part no. A9065420044

Mercedes W906 Bracket Mount Fuse Distribution Box A9065420044

€23.95

Free delivery - Fri, Nov 21

If paid before 14:00

Part no. A0035422319

Mercedes W176 W246 Relay Battery Decoupling 12V A0035422319

€23.95

Free delivery - Fri, Nov 21

If paid before 14:00

Part no. A1725420023

Mercedes W176 W204 W246 Front Parking Sensor Display Control PDC A1725420023

€23.95

Free delivery - Fri, Nov 21

If paid before 14:00

Part no. A2125458040

Bracket Holder Mercedes W204 W212 W222 Auxiliary Generator Battery A2125458040

€23.95

Free delivery - Fri, Nov 21

If paid before 14:00

Part no. A2044401001

Parktronic Module Mercedes W204 PDC Parking Sensors Control Unit A2044401001

€23.95

Free delivery - Fri, Nov 21

If paid before 14:00

Part no. A2429007001

Mercedes W176 W204 W212 Telematics Communication Control Unit Module A2429007001

€28.95

Free delivery - Fri, Nov 21

If paid before 14:00

Part no. A0009829608

Mercedes W204 W212 W222 Auxiliary Additional Generator Battery A0009829608

€165.95

Free delivery - Fri, Nov 21

If paid before 14:00

Part no. N000000004325

Mercedes W169 W204 W211 C219 Replacement Fuse Kit Set N000000004325

€23.95

Free delivery - Fri, Nov 21

If paid before 14:00

Part no. A1669004402

Door Module Mercedes W176 W246 Front Right O/S Control Unit Module A1669004402

€23.95

Free delivery - Fri, Nov 21

If paid before 14:00

Part no. A2075401650

Mercedes W204 Fuse Prefuse Box Relay Electrical Control Unit A2075401650

€61.95

Free delivery - Fri, Nov 21

If paid before 14:00

Part no. A1698201585

Mercedes W245 ECU Control Unit Sensor Air Module A1698201585

€23.95

Free delivery - Fri, Nov 21

If paid before 14:00

Part no. A2048200015

Telephone Cable Mercedes W204 C207 W212 Wiring Adapter Line A2048200015

€23.95

Free delivery - Fri, Nov 21

If paid before 14:00

Part no. A0009006102

Mercedes Vito W639 ECU Control Unit Crash Impact Module Air Module A0009006102

€56.95

Free delivery - Fri, Nov 21

If paid before 14:00

Part no. A0018204535

Microphone Mercedes W639 W906 Hands-Free Interior Mic Unit A0018204535

€37.95

Free delivery - Fri, Nov 21

If paid before 14:00

Part no. A9068203526

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

€32.95

Free delivery - Fri, Nov 21

If paid before 14:00

Part no. A6399003000

Door Module Mercedes Vito W639 Front Right O/S Control Unit ECU A6399003000

€56.95

Free delivery - Fri, Nov 21

If paid before 14:00

Part no. A1695451940

Mercedes W169 W245 Fuse Box Module Unit A1695451940

€32.95

Free delivery - Fri, Nov 21

If paid before 14:00

Part no. A2044401705

Mercedes S204 Door Wiring Loom Cable Rear Left Right N/O/S A2044401705

€23.95

Free delivery - Fri, Nov 21

If paid before 14:00

Part no. A2128203485

Door Module Mercedes W204 W212 Front Left N/S Control Unit Module A2128203485

€23.95

Free delivery - Fri, Nov 21

If paid before 14:00

Part no. A9067601304

Mercedes-Benz Sprinter W906 Front Right Door O/S Handle Bowden Pull Cable

€23.95

Free delivery - Fri, Nov 21

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Part no. A2129003614

Fuse Box Mercedes W212 Rear Relay Control Unit Electric Module SAM A2129003614

€118.95

Free delivery - Fri, Nov 21

If paid before 14:00

Part no. A0009059300

Mercedes W205 W212 W246 Parking Distance Sensor Parktronic White A0009059300

€23.95

Free delivery - Fri, Nov 21

If paid before 14:00

Part no. A2128203785

Door Module Mercedes W204 W212 Front Right O/S Control Unit VST A2128203785

€23.95

Free delivery - Fri, Nov 21

If paid before 14:00

Part no. A2129004718

Door Module Mercedes W212 Front Right Control Unit Module A2129004718

€23.95

Free delivery - Fri, Nov 21

If paid before 14:00

Part no. A2045402710

Mercedes W204 Wiring Loom Cable Door Rear Left Right N/O/S A2045402710

€23.95

Free delivery - Fri, Nov 21

If paid before 14:00

Part no. A2048702789

Aerial Antenna Amplifier Mercedes W204 Estate Left N/S Booster Unit A2048702789

€23.95

Free delivery - Fri, Nov 21

If paid before 14:00

Part no. A2125406462

Mercedes W212 Air Suspension Control Unit Module ECU A2125406462

€28.95

Free delivery - Fri, Nov 21

If paid before 14:00

Part no. A2046801231

Mercedes W204 Dashboard Navigation Central Display Screen Monitor A2046801231

€23.95

Free delivery - Fri, Nov 21

If paid before 14:00

Part no. A1698208026

Mercedes W169 Door Control Module Right Front O/S A1698208026

€23.95

Free delivery - Fri, Nov 21

If paid before 14:00

Part no. A6421508900-1

Mercedes W212 E350 CDI OM642.852 Engine Control Unit Module ECU A6421508900

€222.95

Free delivery - Fri, Nov 21

If paid before 14:00

Part no. A2124405933

Door Wiring Mercedes W212 Loom Cable Rear Left Right N/O/S A2124405933

€23.95

Free delivery - Fri, Nov 21

If paid before 14:00

Part no. A2128203589

Antenna Amplifier Mercedes W212 Aerial Module Rear Roof Frame Right A2128203589

€23.95

Free delivery - Fri, Nov 21

If paid before 14:00

Part no. A2035402206

Mercedes W203 Diesel Engine Starter Alternator Electrical Cable A2035402206

€23.95

Free delivery - Fri, Nov 21

If paid before 14:00

Part no. A2128203985

Mercedes W204 W212 Door Module Rear Left N/S Control Unit Module A2128203985

€23.95

Free delivery - Fri, Nov 21

If paid before 14:00

Part no. A2128204185

Mercedes W204 W212 Door Module Control Unit Module Rear Right O/S A2128204185

€23.95

Free delivery - Fri, Nov 21

If paid before 14:00

Part no. A1698202675-1

Mercedes W169 W245 Aerial Roof Antenna Radio Control Unit Module A1698202675

€42.95

Free delivery - Fri, Nov 21

If paid before 14:00

Part no. A1728100011

Mercedes W176 W204 W212 Navigation Control Unit Module NTG 4.5 A1728100011

€23.95

Free delivery - Fri, Nov 21

If paid before 14:00

Part no. A2129003408

Mercedes W204 W221 Fuel Pump Module Control Unit A2129003408

€23.95

Free delivery - Fri, Nov 21

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Part no. A0035423019

Power Relay Control Mercedes W176 W246 Module 4 Pin 12V 20A A0035423019

€23.95

Free delivery - Fri, Nov 21

If paid before 14:00

Part no. A2038200189

Mercedes C CLK Class W203 W209 Antenna Amplifier Radio Left N/S A2038200189

Product currently unavailable

Part no. A1695406409

Mercedes W169 W245 Battery Earth Negative Cable Wiring Loom A1695406409

€23.95

Free delivery - Fri, Nov 21

If paid before 14:00

Part no. A1728208710

Mercedes W176 W246 Roof Towing Alarm Sensor Switch Module A1728208710

€23.95

Free delivery - Fri, Nov 21

If paid before 14:00

Part no. A2076822704

Trim Panel Mercedes W212 Dashboard Module Control Unit Cover A2076822704

€23.95

Free delivery - Fri, Nov 21

If paid before 14:00

Part no. A2128205026

Mercedes W212 Impact Crash Sensor Door Left Right A2128205026

€23.95

Free delivery - Fri, Nov 21

If paid before 14:00

Part no. A2048208526

Mercedes W204 Parking Sensor Parktronic Display Control A2048208526

€23.95

Free delivery - Fri, Nov 21

If paid before 14:00

Part no. A1698206726

Mercedes-Benz W245 ECU Control Unit Sensor Module Airbag A1698206726

€23.95

Free delivery - Fri, Nov 21

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Part no. A2216890614

Mercedes W221 PDC Distance Control Holder Bracket A2216890614

€23.95

Free delivery - Fri, Nov 21

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Showing 1288-1386 of 3203 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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