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. 9261614

BMW 1 2 Series F20 F21 F22 Rear Bumper PDC Ultrasonic Sensor Glacier Silver

€23.95

Free delivery - Wed, Jan 14

If paid before 14:00

Part no. 3414473

BMW X3 E83 Transmission DXC Transfer Box Wiring Cable Loom Harness 3414473

€56.95

Free delivery - Wed, Jan 14

If paid before 14:00

Part no. 9193110

BMW X5 Series E70 ECU Body Control Module Junction Box PL4 JBBFEII High 9193110

€132.95

Free delivery - Wed, Jan 14

If paid before 14:00

Part no. 6960227

BMW E65 E66 Sensor Air Bag Front Left Door N/S Module Airbag 6960227

€23.95

Free delivery - Wed, Jan 14

If paid before 14:00

Part no. E87-E90-PLUG-SOCKET-LOOM-PDC

BMW E81 E82 E87 E88 E90 E91 E92 Plug Socket Loom PDC Parking Sensor

€23.95

Free delivery - Wed, Jan 14

If paid before 14:00

Part no. 7192742

BMW Z4 Series E89 Battery Holder Hold Down Strap Bracket 7192742

€24.95

Free delivery - Wed, Jan 14

If paid before 14:00

Part no. 3403208

BMW X3 Series E83 Ultrasonic Alarm System Module Control Unit 3403208

€33.95

Free delivery - Wed, Jan 14

If paid before 14:00

Part no. 6957343

BMW 3 5 Series E60 E90 Dashboard Onboard Monitor Display Screen 8.8 CCC 6957343

€47.95

Free delivery - Wed, Jan 14

If paid before 14:00

Part no. 7561834-14

BMW E87 E90 E91 120i 320i N46 150HP ECU KIT DME 7561834 CAS2 + Key Automatic

€517.95

Free delivery - Wed, Jan 14

If paid before 14:00

Part no. 8510221-18

BMW E90 E91 E92 LCI 325d N57 204HP ECU Engine Module DDE 8510221 Automatic

€42.95

Free delivery - Wed, Jan 14

If paid before 14:00

Part no. 9176682

BMW E60 E61 E63 E64 Parking Control Module Unit PDC 9176682

€113.95

Free delivery - Wed, Jan 14

If paid before 14:00

Part no. 8267408

BMW E46 E64 Front Seat Backrest Adjustment Drive Right O/S 8267408

€23.95

Free delivery - Wed, Jan 14

If paid before 14:00

Part no. 9166782

BMW X5 X6 Series E70 E71 Board Monitor Sat Nav System Screen 8,8" 9166782

€113.95

Free delivery - Wed, Jan 14

If paid before 14:00

Part no. 8620771

BMW F20 F21 F30 F32 N55 Power Distribution Module Bracket Cover Carrier 8620771

€23.95

Free delivery - Wed, Jan 14

If paid before 14:00

Part no. 6781575-1

YAW Rate Sensor BMW E81 E87 E90 E91 Accelerator Speed Module 6781575

€23.95

Free delivery - Wed, Jan 14

If paid before 14:00

Part no. 8067511

BMW F98 Adapter Cable Wiring RBS Rear Axle 8067511

€23.95

Free delivery - Wed, Jan 14

If paid before 14:00

Part no. 9211494

BMW E88 Cabrio Convertible Folding Top Roof ECU Module CVM6 9211494

€23.95

Free delivery - Wed, Jan 14

If paid before 14:00

Part no. 7933357

Headlight Module BMW F40 LED Headlamp Control Unit Lear FLM 2 LOW 7933357

€56.95

Free delivery - Wed, Jan 14

If paid before 14:00

Part no. 6943085

BMW E60 E61 Air Module ECU Control Unit Gateway Module 6943085

€23.95

Free delivery - Wed, Jan 14

If paid before 14:00

Part no. 8678968

Engine Wiring Mini F56 F60 BMW F45 F46 Petrol Sensor Module 1 Harness 8678968

€189.95

Free delivery - Wed, Jan 14

If paid before 14:00

Part no. 6974373-1

BMW E81 E84 E87 E88 E90 Ultra Sonic Module Alarm System 9149671

€23.95

Free delivery - Wed, Jan 14

If paid before 14:00

Part no. 9237655-2

BMW E60 E61 E81 E87 E90 F10 Audio Aux In Socket Plug 9237655

€23.95

Free delivery - Wed, Jan 14

If paid before 14:00

Part no. 9197354

BMW X1 X3 E84 F25 Cigarette Lighter Socket With Cable 9197354

€23.95

Free delivery - Wed, Jan 14

If paid before 14:00

Part no. 8647255

BMW F20 LCI F21 F22 Integrated Supply Control Module Unit 8647255

€28.95

Free delivery - Wed, Jan 14

If paid before 14:00

Part no. 9217234

Module Bracket BMW X3 F25 X4 F26 Control Unit Holder Carrier 9217234

€23.95

Free delivery - Wed, Jan 14

If paid before 14:00

Part no. 9324781

BMW F20 F21 F22 F30 F31 F32 F36 Module Control Unit FEM 9324781

€94.95

Free delivery - Wed, Jan 14

If paid before 14:00

Part no. 9241974

Control Unit BMW F01 F02 F07 F10 F11 CAS4 Key Reading Module 9241974

€80.95

Free delivery - Wed, Jan 14

If paid before 14:00

Part no. 8582279-3

BMW F20 F30 F32 120d 320d 420d Diesel N47N 184HP ECU Kit DDE 8582279 Keys FEM

€222.95

Free delivery - Wed, Jan 14

If paid before 14:00

Part no. 6980078

BMW E88 Antenna Amplifier Aerial Diversity Module AMP 6980078

€28.95

Free delivery - Wed, Jan 14

If paid before 14:00

Part no. 7835131

BMW E60 E61 LCI M5 E63 M6 Fuel Injection System Adapter Lead 7835131

€23.95

Free delivery - Wed, Jan 14

If paid before 14:00

Part no. 7601799

Earth Ground Cable BMW X3 F25 Battery Cable Engine Wiring 7601799

€23.95

Free delivery - Wed, Jan 14

If paid before 14:00

Part no. 6957759

BMW E60 E61 E63 Driver Side Door Air Module Control Unit Module 6957759

€23.95

Free delivery - Wed, Jan 14

If paid before 14:00

Part no. 7604347

BMW F20 F30 F31 F32 Bracket Holder Power Distribution Control Unit 7604347

€23.95

Free delivery - Wed, Jan 14

If paid before 14:00

Part no. 8573257

BMW F20 F30 F32 120d 320d 420d N47N 184HP Engine Module ECU DDE 8573257 Manual

€113.95

Free delivery - Wed, Jan 14

If paid before 14:00

Part no. 5A243F5

BMW F70 G60 U06 Rear Ultrasonic Sensor Parking PDC Portimao Blue C31 5A243F5

€32.95

Free delivery - Wed, Jan 14

If paid before 14:00

Part no. 9268710-1

BMW F01 Display Screen On-Board Central Information Monitor 10,25" 9241819

€32.95

Free delivery - Wed, Jan 14

If paid before 14:00

Part no. 7188557

BMW F10 S63N Control Unit Fuel Pump 7188557

€360.95

Free delivery - Wed, Jan 14

If paid before 14:00

Part no. 8588448

BMW 1 3 Series F20 F21 F30 LCI Wiring Harness Engine Glow Plug Module 8588448

€23.95

Free delivery - Wed, Jan 14

If paid before 14:00

Part no. 9286156

BMW X3 F25 Footwell Light Module Control Unit ECU FRM3 9286156

€23.95

Free delivery - Wed, Jan 14

If paid before 14:00

Part no. 6796503

BMW F07 GT ICM Integrated Module Chassis Management QL ES Control Unit 6796503

€28.95

Free delivery - Wed, Jan 14

If paid before 14:00

Part no. 6822582

BMW 3 Series F30 Head Unit Basic Media Navigation Headunit 6822582

€75.95

Free delivery - Wed, Jan 14

If paid before 14:00

Part no. 9240083

BMW X5 E70 X6 E71 Safety Control Unit Air Module Bag ECU Bosch 9240083

€23.95

Free delivery - Wed, Jan 14

If paid before 14:00

Part no. 5A323C8

BMW F40 Fuse Relay Power Distribution Box Unit 5A323C8

€23.95

Free delivery - Wed, Jan 14

If paid before 14:00

Part no. 7550468-3

BMW E81 E87 LCI E90 E91 Petrol N43 Alternator Generator 170A Denso 7550468

€28.95

Free delivery - Wed, Jan 14

If paid before 14:00

Part no. 6932452

BMW 5 6 Series E60 E61 E63 E64 Power Distribution Electrical Fuse Box 6932452

€23.95

Free delivery - Wed, Jan 14

If paid before 14:00

Part no. 7181313

BMW X1 E84 E90 E91 Door Handle LED Light Lighting Left N/S 7181313

€23.95

Free delivery - Wed, Jan 14

If paid before 14:00

Part no. 9315152

BMW X3 F25 Fuse Box Grouping Map Diagram Location 9315152

€23.95

Free delivery - Wed, Jan 14

If paid before 14:00

Part no. 4030026

BMW Z4 E85 Xenon Headlight Resistor Ballast Relay Module Unit 4030026

€23.95

Free delivery - Wed, Jan 14

If paid before 14:00

Part no. 9123605

BMW X5 Series E70 Cable Glove Compartment Wiring Loom Harness 9123605

€33.95

Free delivery - Wed, Jan 14

If paid before 14:00

Part no. 8580389

BMW F40 F45 X1 F48 Mini F55 F56 F57 F60 Diesel Engine Starter Motor 8580389

€61.95

Free delivery - Wed, Jan 14

If paid before 14:00

Part no. 6960259

BMW 1 3 SERIES E81 E82 E87 E90 E91 E92 E93 Flat Cable Wiring Wire CAS Start Stop

€23.95

Free delivery - Wed, Jan 14

If paid before 14:00

Part no. 9251702

BMW 1 2 3 Series F20 F21 F22 F30 F31 F32 Connecting Wire Sat Nav Champ/Mask-CID

€32.95

Free delivery - Wed, Jan 14

If paid before 14:00

Part no. 8631634

BMW X5 F15 Earth Ground Cable Negative Battery Lead Wiring 8631634

€32.95

Free delivery - Wed, Jan 14

If paid before 14:00

Part no. 9261614-1

BMW F20 F21 F22 Rear Bumper PDC Ultrasonic Sensor Glacier A83 Silver Set

€28.95

Free delivery - Wed, Jan 14

If paid before 14:00

Part no. 411033

iPod Most Interface BMW E60 E65 E81 E87 E90 Module Alpine 0411033

€23.95

Free delivery - Wed, Jan 14

If paid before 14:00

Part no. 6918567

BMW 7 Series E65 E66 E67 Seat Control Unit Module Heating 6918567

€23.95

Free delivery - Wed, Jan 14

If paid before 14:00

Part no. 9290014

BMW X3 F25 Light Module Control Footwell ECU Unit FRM3 9290014

€108.95

Free delivery - Wed, Jan 14

If paid before 14:00

Part no. 6939287

BMW E60 E61 E63 Air Module ECU Control Unit Centre Vehicle Sensor 6939287

€23.95

Free delivery - Wed, Jan 14

If paid before 14:00

Part no. 3415607

BMW X3 E83 LCI Petrol N52N Cable Alternator Starter Base B+ 3415607

€23.95

Free delivery - Wed, Jan 14

If paid before 14:00

Part no. 6947817

BMW E65 E66 IDrive Control Unit Front Centre Console Module ECU 6947817

€23.95

Free delivery - Wed, Jan 14

If paid before 14:00

Part no. 9133913

BMW Z4 E89 Roadster Convertible HiFi Speaker System Amplifier 9133913

€75.95

Free delivery - Wed, Jan 14

If paid before 14:00

Part no. 1393415

BMW 3 5 7 Series E36 E38 E90 E91 F10 F11 Change-Over Contact Relay Grey 1393415

€23.95

Free delivery - Wed, Jan 14

If paid before 14:00

Part no. 6900582

BMW 7 Series E65 E66 Fuse Board Power Distribution Box

€23.95

Free delivery - Wed, Jan 14

If paid before 14:00

Part no. 8510221-3

BMW E90 E91 LCI E92 325d Diesel N57 204HP ECU Engine Kit DDE 8510221 CAS3 + Key

€151.95

Free delivery - Wed, Jan 14

If paid before 14:00

Part no. 8594489

BMW X1 F48 Mini F55 F56 F57 Battery Cable Starter-Base B+ 8594489

€23.95

Free delivery - Wed, Jan 14

If paid before 14:00

Part no. 8678974

Engine Cable BMW F40 X1 F48 Mini F55 F56 Injector Wiring Loom Harness 8678974

€56.95

Free delivery - Wed, Jan 14

If paid before 14:00

Part no. 9240524-1

BMW E82 Footwell Light Module Control Unit ECU BASIS PL2 FRM3R 9240524

€94.95

Free delivery - Wed, Jan 14

If paid before 14:00

Part no. 6913389

BMW X3 X5 Z4 E53 E83 E85 6 Disc CD Changer Multichanger Without Magazine

€37.95

Free delivery - Wed, Jan 14

If paid before 14:00

Part no. 9187541

BMW Z4 E89 ECU Body Control Module H3 Junction Box 9187541

€37.95

Free delivery - Wed, Jan 14

If paid before 14:00

Part no. 8514577

BMW X3 F25 Diesel N47N Engine Gearbox Wiring Loom Harness 8514577

€42.95

Free delivery - Wed, Jan 14

If paid before 14:00

Part no. 9193745

BMW 3 5 E60 E61 E90 LCI Display Screen 8.8" Monitor Sat Nav 9193745

€94.95

Free delivery - Wed, Jan 14

If paid before 14:00

Part no. 9287756

Loudspeaker Centre BMW F25 F15 Central Woofer Audio Speaker 9287756

€23.95

Free delivery - Wed, Jan 14

If paid before 14:00

Part no. 130002613

BMW 5 X5 7 Series E60 E60N E61 E65 E66 E67 E70 Drive Longitudinal Seat Adjust

€23.95

Free delivery - Wed, Jan 14

If paid before 14:00

Part no. 8506281

BMW E81 E87 E90 LCI 116d 316d 118d 318d N47 Engine ECU DDE 8506281 Manual

€28.95

Free delivery - Wed, Jan 14

If paid before 14:00

Part no. 3452285

BMW X3 Series E83 Boardmonitor Central Information Display Screen 6,5"

€265.95

Free delivery - Wed, Jan 14

If paid before 14:00

Part no. 7521116

Starter BMW E90 Petrol N52 N53 Engine Starter Motor Unit 7521116

€23.95

Free delivery - Wed, Jan 14

If paid before 14:00

Part no. 9257150

BMW F01 F02 F03 F10 F11 F20 F21 F30 F31 Bluetooth Module Combox Media 9257150

€23.95

Free delivery - Wed, Jan 14

If paid before 14:00

Part no. 6958446

BMW E65 E66 E67 Control Unit Door Front Passenger Side Module ECU 6958446

€23.95

Free delivery - Wed, Jan 14

If paid before 14:00

Part no. 8377654

BMW X5 E53 AmplifIer Trap Circuit Antenna Booster Diversity 8377654

€23.95

Free delivery - Wed, Jan 14

If paid before 14:00

Part no. 7543297

BMW 5 6 Series E60 E61 E63 E64 N52 Cable Alternator Starter Base B

€23.95

Free delivery - Wed, Jan 14

If paid before 14:00

Part no. 8485065

BMW G11 G12 G14 G15 G16 G30 G31 G32 G38 Positive Battery Cable Wire 8485065

€47.95

Free delivery - Wed, Jan 14

If paid before 14:00

Part no. 6952914

Wiring Loom BMW E65 E66 Cables Rear Bumper PDC 6952914

€23.95

Free delivery - Wed, Jan 14

If paid before 14:00

Part no. 9226881

BMW 1 Series F20 F20N F21 F21N LCI Radio Aerial Antenna Amplifier AM/FM 9226881

€23.95

Free delivery - Wed, Jan 14

If paid before 14:00

Part no. 6902285

BMW E39 E87 E90 E91 Trigger Contact PDC Sensor Tweeter Gong 6902285

€23.95

Free delivery - Wed, Jan 14

If paid before 14:00

Part no. 9387262

FEM Module BMW F20 F21 F22 F30 F31 F32 F36 Body Control Unit ECU LR01 9387262

€113.95

Free delivery - Wed, Jan 14

If paid before 14:00

Part no. 6812250

BMW X1 F48 Door Wiring Loom Harness Cable Front Passenger Side N/O/S 6812250

€42.95

Free delivery - Wed, Jan 14

If paid before 14:00

Part no. 9149673

BMW 5 Series E60 E61 LCI Alarm System Unit Ultra Sonic Module 9149673

€23.95

Free delivery - Wed, Jan 14

If paid before 14:00

Part no. 9153418

BMW F10 F11 B Plus Distributor Front Battery Cable 9153418

€23.95

Free delivery - Wed, Jan 14

If paid before 14:00

Part no. 6835155

BMW 1 2 3 Series F40 F44 G20 Radio Antenna Amplifier Suppression Filter 6835155

€23.95

Free delivery - Wed, Jan 14

If paid before 14:00

Part no. 9226331

BMW E87 LCI ECU Body Control Module Unit H2 9226331

€23.95

Free delivery - Wed, Jan 14

If paid before 14:00

Part no. 8058634

Engine Wiring BMW X3 M F97 X4 M F98 Loom Harness Ignition Module 8058634

€237.95

Free delivery - Wed, Jan 14

If paid before 14:00

Part no. 6960428

BMW 3 5 6 Series E60 E61 E63 E64 E90 E91 FBAS Analog Video Module Unit 6960428

€225.95

Free delivery - Wed, Jan 14

If paid before 14:00

Part no. 8516753-1

BMW F01 730d F07 530d N57 245HP Engine Unit ECU Kit DDE 8516753 Automatic

€180.95

Free delivery - Wed, Jan 14

If paid before 14:00

Part no. 9387145

BMW F30 LCI 330e B48X Negative Earth Cable Battery 9387145

€23.95

Free delivery - Wed, Jan 14

If paid before 14:00

Part no. 8517862-5

BMW F10 F20 F30 520d 120d 320d N47N 184HP Engine Unit ECU DDE 8517862 Automatic

€56.95

Free delivery - Wed, Jan 14

If paid before 14:00

Part no. 9128569-1

BMW 1 Series E81 E82 E87 LCI E88 Wiring Harness Air Valve Air Flap 9128564

€23.95

Free delivery - Wed, Jan 14

If paid before 14:00

Part no. 9197316

BMW E60 E61 LCI E63 E64 Body Gateway Module ECU Control Unit

€23.95

Free delivery - Wed, Jan 14

If paid before 14:00

Part no. 9280186

BMW 5 7 Series F10 F11 F01 F02 F03 LCI Airbag Control Module ECU Unit 9280186

€23.95

Free delivery - Wed, Jan 14

If paid before 14:00

Part no. 7254970

BMW E92 LCI Grille Trim Panel Chrome Frame Front Right O/S 7254970

€23.95

Free delivery - Wed, Jan 14

If paid before 14:00

...

Showing 595-693 of 5105 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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