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.

More information

Make

Category

Subcategory

Condition

In Stock

Price

Products in promotion

Part no. 7638192

BMW F20 F21 F30 F31 N13 Petrol Engine Starter Motor Bosch 7638192

PLN 42.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. 7533100

Mini Cooper One R50 Petrol W10 Engine Wiring Loom Harness Module 7533100

PLN 180.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 9384214

BMW F10 ECU Body Control Module V2 PL6 JBBFE III Junction Box 9384214

PLN 208.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 8386708

BMW X5 Series E53 Xenon Headlight Ballast Control Unit Module Hella 8386708

PLN 94.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2118703126

Headlight Module Mercedes C209 W211 CLS C219 Level Control Unit ECU A2118703126

PLN 42.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. 5Q0937084DB

VW Golf MK7 Body Control Module BCM Control Unit ECU Power Supply 5Q0937084DB

PLN 61.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2038206626

Mercedes-Benz C-Class W203 Door Control Module Unit Rear Right O/S A2038206626

PLN 42.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. A2229009708

Mercedes W205 Body Control Comfort Unit Module BCM Unit ECU A2229009708

PLN 142.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A0065422618

ESP Sensor Mercedes W166 Electronic Yaw Rate Sensor Module A0065422618

PLN 42.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. 7798482

BMW E60 E61 Battery Alternator Cable Lead For Preheater System 7798482

PLN 47.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. 9361654

Radio Player Mini F55 F56 CD Bluetooth DAB Control Unit Module 9361654

PLN 427.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A0025428419

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

PLN 42.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. 9211494

BMW E88 Cabrio Convertible Folding Top Roof ECU Module CVM6 9211494

PLN 42.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. 8510221

BMW E90 E91 LCI E92 330d Diesel N57 Engine Control Unit DDE 8510221 Automatic

PLN 237.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 7580334

Earth Ground Cable BMW F10 F11 F13 F01 Battery Cable Engine Wiring 7580334

PLN 61.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2048205015

Mercedes W204 W207 Wiring Loom Cable Harness AUX Jack A2048205015

PLN 61.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A9065450003

Fuse Cover Mercedes Sprinter W906 Box Trim Panel Lid Grey A6395450003

PLN 42.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. A0009055504-TNG

Mercedes W205 W212 Front Rear PDC Parking Distance Sensor Tenorite Grey - 755

PLN 42.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. 9196938

BMW E93 Seat Control Module Unit ECU 9148266

PLN 142.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 9259469

BMW X3 F25 Fuse Box Power Distribution Control Unit Module Rear 9259469

PLN 46.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. 9253780

Boot Release Switch BMW F01 F02 F10 F11 LCI Auto Tailgate 9253780

PLN 42.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. 8200568535-1

Renault Master 3 Vauxhall Movano B 2.3 DCI Diesel Starter Motor 8200568535

PLN 142.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 7525696

BMW X5 E53 Ground Battery Cable Alternator Starter 7525696

PLN 66.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 9154128

BMW Mini Cooper One R56 Front Left Passenger's Door Wiring Harness N/S 9154128

PLN 46.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. 7599881-1

BMW E87 LCI E90 E91 118i 318i Petrol N43 143HP ECU KIT DME 7599881 CAS3 + Key

PLN 332.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 9393675

BMW X3 F25 Body Control Module ECU Junction Box JBBFE III 3 V8 Lear 9393675

PLN 94.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2229009910

Mercedes W205 W213 C238 Seat Heating Heater Module Control Unit ECU A2229009910

PLN 284.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 7835735

BMW E46 M3 Z4 E85 M3.2 Engine Starter Motor Valeo 7834214

PLN 237.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 9873895

BMW F40 Crash Control Unit Air Module ECU Continental 9873895

PLN 474.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 1508927-1

Mini Cooper S R52 R53 Positive Battery Cable Fuse Box Module B 6911180

PLN 85.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 9285504

Distributor BMW X5 F15 X6 F16 B + Battery Power Distributor 9285504

PLN 42.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. A0465456628

Mercedes W203 W204 W218 Front Seat Wiring Loom Plug Connector A0465456628

PLN 75.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A1779004106

Door Module Mercedes C118 W177 W247 Front Right O/S Control Unit A1779004106

PLN 42.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. 5Q0907530AJ

Audi RS3 8V Gateway Control Module GCM Unit ECU 5Q0907530AJ

PLN 142.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 7608801

Valve Cable BMW F20 F21 F30 F31 Petrol N13 Valve Tronic Wiring Harness 7608801

PLN 42.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. 9380334

BMW X3 F25 Central Gateway Module Control Unit Lear ZGW-02 4SK 9380334

PLN 151.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A0015452616

Mercedes W212 Transmission Control Unit Module VDO EGS 722.646 A0015452616

PLN 94.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 8C113C190AB

Ford Transit Mk7 Yaw Rate Speed Control Unit Sensor Meter 8C113C190AB

PLN 42.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. 8J0915459

Audi A4 B8 A5 8T TT MK2 Positive Battery Terminal Cable Overload Fuse 8J0915459

PLN 42.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. 9362848-1

Telematics Module BMW F20 F21 F30 F31 Bluetooth Teleservices GPS Unit 9342881

PLN 142.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A1779001304

Door Module Mercedes C118 W177 W247 Front Left N/S Control Unit A1779001304

PLN 94.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 9399247

BMW F20 F30 F31 F32 ECU Camera Module Based Drive Support

PLN 112.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 9171948

BMW X5 X6 E70 E71 Air Module Control ECU Unit Module 9171948 0285010250

PLN 42.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. 7516376

BMW E65 E66 E67 Electric Valve 735i 745i 735Li 745Li 745LiS 7516376

PLN 42.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. 8K0959655N

Audi A4 B8 A5 8T Air Module Control Unit ECU 8K0959655N

PLN 61.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A6397600104

Bowden Cable Mercedes W639 Vito Door Handle Catch Top Rear Left Wire A6397600104

PLN 47.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. 9393780

BMW F45 F46 Mini F55 F56 F57 KaFAS Camera Front Lane Assist ECU Module 9393780

PLN 113.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 9362848

BMW 1 3 Series F20 F21 F30 F31 Bluetooth Teleservices GPS Telematics Module

PLN 275.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 8589907

Supply Module BMW F40 F48 Mini F55 F56 F57 Integrated Z11 Control Unit 8589907

PLN 61.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 3453791

BMW X3 E83 LCI Crash System Control Unit Module ECU 3453791

PLN 189.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A0009002414

Module Fuel Pump Mercedes W205 C253 Control Module Unit A0009002414

PLN 75.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2035451303

Mercedes CL203 W203 Fuse Box Cover Engine Bay Relay A2035451303

PLN 42.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. 8617707

BMW Mini Cooper F55 F56 Wiring Harness Engine Supply Module Cable Loom 8617707

PLN 42.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. 8E0035456C

Audi A4 B7 Telephone Aerial Antenna Signal Amplifier Module 8E0035456C

PLN 42.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. 7823314

Mini Cooper R55 R56 R57 LCI N47N 1.6 Diesel Engine Starter Motor 7823314

PLN 94.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 8T0907468AB

Audi A4 B8 2.0 TDI CAGA Gateway Interface Control Module Unit ECU 8T0907468H

PLN 42.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. 7799470-1

Wiring Bracket BMW E60 E61 X3 E83 Diesel Engine Harness Cable Loom Mount 7799470

PLN 42.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. 7540203

BMW X5 Series E70 Control Unit DME Module Emergency Release Lock 7582630

PLN 142.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A0045467540

Mercedes W204 W221 Distributor Box Block Control Unit Relay A0045467540

PLN 61.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 1439559

BMW X5 Series E53 Battery Cable Plus Pole 1439559

PLN 42.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. A6395406209

Wiring Loom Mercedes W639 Vito Cable Door Wiring Cable A6395406209

PLN 47.95

Delivery - Tue, Jan 13

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

PLN 75.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2045405609

Video Wiring Cable Mercedes W204 Video Unit Harness Cable Wire A2045405609

PLN 42.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. 8387568-1

BMW E65 Battery B Engine Compartment Terminal Point Cover 8387568

PLN 42.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. 9808713

Mini Cooper S Cabrio R57 R57N LCI Air Module ECU Control Unit Module 9808713

PLN 427.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 9381837

BMW X1 F48 Mini F55 F56 Air Module Control Unit ECU 9381837

PLN 360.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 9226333

BMW E93 ECU Body Control Module H3 Junction Box PL2RR JBBFE IIIR 9226333

PLN 332.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2601503100

Mercedes W177 M260 Petrol Engine Wiring Cable Loom Harness A2601503100

PLN 332.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 6826985

BMW F22 F23 F30 F34 LCI Control Unit Air Module ECU 6826985

PLN 142.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 24435922

GM Vauxhall Opel Relay 4-Pin Multi Use Glow Plug Unit Black Set 24435922

PLN 56.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. 7515197-2

MINI Cooper One R50 W10 Battery Cable Plus Pole 7515197

PLN 47.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. 9254025

BMW 5 7 X3 X5 X6 Series F10 F11 E70 E71 F01 F02 F25 Rain Light Solar Sensor

PLN 42.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. 1K0971349GA

Volkswagen VW Golf Mk6 1.6 TDI Alternator Cable Wiring Harness Loom 1K0971349GA

PLN 61.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A6395420018

Mercedes Vito W639 Steering Wheel Angle Sensor Ring Squib A6395420018

PLN 61.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A1698705894

Mercedes W169 W245 CD Player Radio Stereo Head Unit A1698705894

PLN 284.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 6859714-1

BMW X5 E70 X6 E71 Air Suspension Supply Compressor Valve Control Unit 6859714

PLN 142.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 7641003

Mini Cooper S R55 R56 R57 N14 1.6 174HP ECU Kit DME 7641003 CAS3 + Key Manual

PLN 1,709.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A1775402111

Mercedes W177 Door Harness Loom Cable Wiring Rear Left Right N/O/S A1775402111

PLN 85.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. A2139008530

Mercedes W213 W447 Transmission Gearbox Control Unit Module ECU A2139008530

PLN 189.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 3C1T14A120AA

Ford Transit Mk6 Starter Motor Battery Cable Loom Wiring Harness 3C1T-14A120-AA

PLN 42.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. 8T0959792Q

Audi A5 8T Front Door Control Module Passenger Side 8T0959792Q

PLN 42.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. 4F0971687A

Audi A6 C6 Door Window Motor Wiring Cable Loom Front Right O/S 4F0971687A

PLN 42.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. 6989080-OLI

BMW E65 E66 E67 PDC Rear Parking Sensor Ultrasonic Olivin Metallic

PLN 155.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 9119058

BMW E81 E87 E90 E91 Airbag Control Unit ECU NO CRASH DATA 9119058

PLN 66.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. DV6T14B533BD

Ford Transit Connect Door Module Front Left N/S Control Unit ECU DV6T14B533BD

PLN 142.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 9343687

BMW F01 LCI F07 F10 F11 F25 Safety Control Unit Air Module Bag ECU 9343687

PLN 94.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 9136726-2

BMW Mini Cooper R55 R56 Multifuse B Battery Power Distributor Cable 9136726

PLN 18.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. A0015424523

Parktronic Display Mercedes W207 W212 PDC System Parking Sensor A0015424523

PLN 42.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. 7627023

BMW F20 F21 F30 Petrol N13 Automatic Gearbox Engine Sensor Module 1 Wiring

PLN 113.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 7791352

BMW X5 Series E53 3.0d M57N Cable Starter Base B 7791352 12427791352

PLN 47.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. 8383551

Mini R50 R53 Headlight Aim Range Control Unit Module ECU Xenon 8383551

PLN 42.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. 6970890

BMW 7 Series E65 E66 E67 Sensor B-pillar Left Airbag N/S 6970890

PLN 28.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. A0025428719

Mercedes W176 W204 W207 W166 Relay 4 Pin Grey Hella A0025428719

PLN 42.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. 6906614-1

Mini Cooper One R50 R52 R53 Power Distribution Fuse Box Front 6906614

PLN 47.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. A4478200087

Mercedes Sprinter W906 Connector AUX USB Adapter Port Socket A4478200087

PLN 61.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 9383695

BMW F10 Footwell Light Module Control Unit ECU FRM III TEMIC 9383695

PLN 303.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 9140942-BAR

BMW 1 3 Series E87 E90 E91 LCI Rear PDC Ultrasonic Parking Sensor Barbera Red

PLN 75.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 9309997

Mini F57 Cabrio Aerial Base Antenna Rod Unit AM / FM / TEL / GPS / DAB-L 9309997

PLN 427.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 8K0959792R

Audi Q5 8R Door Module Control Unit Front Passenger Side 8K0959792R

PLN 75.95

Free delivery - Tue, Jan 13

If paid before 14:00

...

Showing 1288-1386 of 12186 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 .

used parts volkswagen car parts mercedes used car parts cheap car parts audi auto parts spare parts genuine used audi parts bmw starters, alternators, ecus & wiring mercedes starters, alternators, ecus & wiring mini starters, alternators, ecus & wiring audi starters, alternators, ecus & wiring volkswagen starters, alternators, ecus & wiring