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. 1T0971235A

Volkswagen Golf MK5 6 Audi A3 8P Negative Battery Terminal Cable 1T0971235A

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 1K0951253

VW Volkswagen Audi Seat Relay 449 Unit Module 4 Pins 1K0951253

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 1K0971228L

VW Golf MK5 6 Audi A3 8P Positive Battery Terminal Cable 1K0971228L

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 1K0959433BT

VW Golf 5 Body Control Comfort Unit Module BCM Convenience Unit ECU 1K0959433BT

PLN 61.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 038907281D

Genuine VW Audi Seat Skoda Diesel Glow Plug Relay Unit Black 9 Pins 038907281D

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 1K0971250AH

VW Golf Mk5 V Negative Battery Terminal Cable Wiring 1K0971250AH

PLN 47.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 02Z911024H

Volkswagen Passat B7 Starter Motor Actuator TDI Diesel Engine 02Z911024H

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 141951253B-1

VW Volkswagen Audi Seat Skoda Relay Unit 4 Pins 12V 40A 141951253B

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 6R0919433

VW Volkswagen Audi Seat Skoda Glow Plug Relay Unit Black 505 7 Pins 6R0919433

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 02M911024

Starter Motor Volkswagen VW Golf VI Passat B6 Tiguan Diesel Engine 02M911024

PLN 94.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 4H0955557

Volkswagen VW Polo 6R 5 Audi A6 C7 Air Module Crash Impact Sensor 4H0955557

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 191937503

VAG VW Volkswagen Audi Seat Skoda Relay Unit 4 Pins 12V 40A 191937503

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 5M0035186AA

Radio CD Player VW Volkswagen Golf Polo Passat B6 Head Unit RCD310 5M0035186AA

PLN 75.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 1K0955557A

VW Volkswagen Audi Seat Skoda Airbag Crash Impact Sensor SRC 1K0955557A

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 7L0959772D

VW Touareg Phaeton Heated Seat Control Module Unit 7L0959772D

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. VW-Remote-Key

VW Passat Radio Remote Control Alarm Key Fob Control Unit Module

PLN 47.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 7M0951253C

Volkswagen T5 Audi Seat Skoda Relay Black Control Unit 5 Pin 12V 7M0951253C

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 443937105A

VW Volkswagen Audi Skoda Seat Little Fuse Amp 30A 12V 443937105A

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 1T0909606

VW Volkswagen Touran 1T Air Module Control Unit Crash Impact Sensor 1T0909606

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 1K0951253-1

VW Volkswagen Audi Seat Relay 449 12V 30A Unit Module 4 Pins 1K0951253

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 1K0951253A

VW Audi Seat Skoda Glow Plug Relay Unit Engine Supply Black 4 Pins 1K0951253A

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 1K0907655D

VW Touran 1T Yaw Sensor ESP Rotation Rate Control Unit Module 1K0907655D

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 2K5951172

VW Volkswagen Caddy Maxi Interior Roof Alarm Sensor Module Unit 2K5951172

PLN 427.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 09G927750FD

VW Volkswagen Tiguan 5N Automatic Gearbox Module Control Unit ECU 09G927750FD

PLN 189.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 5M0907357C

Volkswagen VW Tiguan 5N Headlight Range Control Unit Module ECU 5M0907357C

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 5N0971228

VW Volkswagen Tiguan 5N Positive Battery Terminal Cable Lead Wiring 5N0971228

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 4F0959793E

VW Volkswagen Tiguan 5N Front Right O/S Door ECU Module Control Unit 4F0959793E

PLN 66.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 6R0959655K

VW Volkswagen Polo 6R Air Module Bag Control Unit 6R0959655K

PLN 123.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 5N0035342G

VW Volskwagen Polo 6R Multimedia Electronic ECU Control Unit Module 5N0035342G

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 3AA919041

VW Sharan 7N Voltage Stabilizer Converter Electric Control Unit Module 3AA919041

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 4H0951253A

Seat Skoda Audi VW Polo 6R Multi Use Control Module Relay 4 Pin 645 4H0951253A

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 4H0951253C

Seat Skoda Audi VW Polo 6R Multi Use Control Module Relay 4 Pin 646 4H0951253C

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 1H0953227

Audi Seat Volkswagen Polo 6N Turn Signal Hazard Light Relay 191 1H0953227

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 09D927750EE

VW Volkswagen Touareg 7L Automatic Gearbox Module Control Unit ECU 09D927750EE

PLN 75.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 7L0909606D

Volkswagen Touareg 7L Front Impact Crash Sensor Right Left N/O/S 7L0909606D

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 7L0907719A

Volkswagen Touareg Anti Theft Alarm System Control Module Unit ECU 7L0907719A

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 1J6035111

VW Volkswagen Touareg 7L Golf 4 CD Changer 1J6035111

PLN 94.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 1K3959857B

Volkswagen Polo 6R Golf Mk6 3-Door Window Lifter Switch Driver's Side 1K3959857A

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 0AD927755BE

VW Volkswagen Touareg 7L Transfer Box Control Unit Module ECU 0AD927755BE

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 6R0971839A

VW Volkswagen Polo 6R 1.2 TSI Petrol Fuel Sender Pump Cover Panel 6R0971839A

PLN 47.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 5H0963554

Volkswagen Golf Mk8 Rear Seat Bench Couch Occupancy Sensor Unit 5H0963554

PLN 123.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 5H0971385F

Volkswagen Golf Mk8 CD1 Rear Seat Couch Wiring Harness Cable Loom 5H0971385F

PLN 284.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 5Q0951605B

Audi Seat Skoda Volkswagen Golf Mk8 Anti Theft Alarm Siren 5Q0951605B

PLN 47.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 5WA915343B

Battery Bracket VW Golf 8 CD1 Audi A3 8Y Battery Clamp Holder 5WA915343B

PLN 47.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 5WA962132

Volkswagen Golf Mk8 Antenna Amplifier Transmitter Receiver Module ECU 5WA962132

PLN 94.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 5H0971104P

Volkswagen Golf Mk8 CD1 Parking Sensor Wiring Rear Bumper Loom Cable 5H0971104P

PLN 142.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 0AM911022C

Volkswagen Golf Mk8 Engine Starter Motor Assembly Unit 0AM911022C

PLN 94.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 5Q0955559C

Volkswagen Golf 8 Rain Sensor Front Windscreen 5Q0955559C

PLN 61.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 5WA907007AC

Volkswagen Golf Mk8 Air Conditioning A/C Control Unit Module 5WA907007AB

PLN 474.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 5WA959436P

Volkswagen Golf CD1 Keyless Go Module ECU Entry Control Unit 5WA959436P

PLN 47.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 5WA980653D

Volkswagen Golf CD1 Camera Lane Assist Control ECU Module Unit 5WA980653D

PLN 379.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 5Q0959592L

Volkswagen Golf Mk8 Front Door Passenger Side Module Control Unit 5Q0959592L

PLN 75.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 5WA959354

VW Volkswagen Golf Mk8 Air Module Control Unit Crash Impact Sensor 5WA959354

PLN 61.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 7M0951253C-1

VW Volkswagen T5 Audi Seat Skoda Relay Black Control Unit 5 Pin 12V 7M0951253C

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 6C0959653

VW Polo 6R Seat Ibiza 6J Clock Spring Steering Column Squib Ring 6C0959653

PLN 94.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 5WA971794R

VW Golf 8 1.5 eTSI HV Battery Positive Terminal Harness Cable Wiring 5WA971794R

PLN 104.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 3C0937125A

Volkswagen Tiguan 5N Engine Bay Fuse Relay Box Terminal 3C0937125A

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 5N0035552K

VW Tiguan 5N Antenna Amplifier Module Control Right O/S Unit 5N0035552K

PLN 61.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 03E971815A

Volkswagen Polo 6R Cover Wiring Loom Guide Bracket Trim 03E971815A

PLN 94.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 02M911023M

Volkswagen VW Golf Mk5 1.6 2.0 GTI Petrol Engine Starter Motor 02M911023M

PLN 61.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 8Y0963554B

Volkswagen Golf 8 Rear Seat Couch Occupancy Sensor Unit 8Y0963554B

PLN 104.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 5Q0959593F

Volkswagen Golf Mk8 Door Module Front Right O/S ECU Control Unit 5Q0959593F

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 0AM911023T

Volkswagen Touran 1T 1.4 TSI Petrol Engine Starter Motor 0AM911023T

PLN 94.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 03C906027DA-1

VW Volkswagen Touran 1T 1.4 TSI CAVC Engine ECU Kit Ignition 03C906027DA + Keys

PLN 949.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 5G0035820A

Volkswagen Golf Mk7 Infotainment Multimedia Head Unit 5G0035820A

PLN 189.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 5G0919605

VW Volkswagen Golf Mk7 Radio Control Head Unit CD Player 5G0919605

PLN 237.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 02M911024J

Volkswagen Golf 7 Audi A1 A3 Seat Ibiza Petrol Engine Starter Motor 02M911024J

PLN 94.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 03C972619CG

VW Passat B7 Engine Wiring Loom Cable Harness Injector Module Petrol 03C972619CG

PLN 379.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 5Q0959392D

VW Volkswagen Golf 7 Front Door Control Module Passenger Side Unit 5Q0959392D

PLN 75.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 2Q0980653G

Audi Q2 GA Front Camera Module Lane Assist Control Unit 2Q0980653G

PLN 284.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 1J0919506M

Volkswagen Skoda Seat Audi Radiator Cooling Fan Relay Control Unit 1J0919506M

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 1Y0951177

VW Volkswagen New Beetle Alarm Motion Detector Sensor Module Unit 1Y0951177

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 5Q0035570-1

Volkswagen Golf 5G Radio Antenna Noise Signal Disturbance Suppressor 5Q0035570

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 5Q0937086BK-1

Volkswagen Golf Sportsvan Body Control Comfort Unit Module BCM Unit 5Q0937086BK

PLN 237.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 3Q0907530L

VW Volkswagen Golf SV Gateway Control Unit Module ECU GW MQB High 3Q0907530L

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 510971693J

Volkswagen Golf Sportsvan Door Harness Rear Left N/S Door Wiring Loom 510971693J

PLN 94.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 05E907309

Volkswagen Golf Sportsvan 1.5 TSI DADA 150HP Engine ECU Key + Lock 05E907309 DSG

PLN 474.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 070903327C

Volkswagen Touareg Transporter 2.5TDI Alternator Coupling Sleeve Belt 070903327C

PLN 70.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 02E911024B

Starter Motor VW Golf GTI Audi Seat Skoda Petrol CJX CHHA Bosch 1.1KW 02E911024B

PLN 61.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 4H0951253A-2

Seat Skoda Audi VW Polo 6R Multi Use Control Relay 4 Pin 645 4H0951253A SET X3

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 4H0951253C-1

Volkswagen Polo 6R Tiguan 1T Multi Use Control Module Relay SET 4H0951253C

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 3D0941329E

Volkswagen Golf Mk7 Headlight Cornering Module Control Unit 3D0941329E

PLN 170.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 5WA962133F

Audi Volkswagen Seat Keyless Entry Module Aerial Antenna 5WA962133F

PLN 94.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 6965046-1

CD Player BMW E60 E61 E63 M-ASK M-Audio Radio System Controller 6965046

PLN 427.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 5Q0959435A

Volkswagen Golf CD1 Keyless Go Module ECU Entry Control Unit 5Q0959435A

PLN 61.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 5WA962133E

Volkswagen Golf 5G Keyless Entry Module Aerial Antenna 5WA962133E

PLN 75.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 7L0959655

Volkswagen Touareg 7L Air Module Control Unit Crash Impact Sensor 7L0959655

PLN 61.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 06J903023D

Audi Volkswagen Seat Skoda Petrol Alternator Generator 14V 140A 06J903023D

PLN 237.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 05E972627B

Volkswagen Golf SV 1.5 TSI DADA Automatic Engine Wiring Harness 05E972627B

PLN 379.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 1K0971235J

Audi A3 Volkswagen Golf Battery Wire Cable Negative Earth Lead 1K0971235J

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 7L0941824B

Volkswagen Touareg 7L Fuse Box Module Electrical Relay Control Unit 7L0941824B

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 5Q0907530Q

Gateway Control Module Audi A3 8V Volkswagen MK7 ECU Unit 5Q0907530Q

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 5M0035724

Volkswagen VW Golf Mk6 1K Aux Socket Port Switch 5M0035724

PLN 61.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 3C0907651

Volkswagen VW Golf Mk6 1K Acceleration Sensor 3C0907651

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 5Q0937125A

Fuse Relay Box Volkswagen Audi Skoda Seat Engine Bay Supply Unit 5Q0937125A

PLN 94.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 02M911024S

VW Golf MK7 5G Audi A3 8V Engine Starter Motor Valeo 2.0 TDI Diesel 02M911024S

PLN 75.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 6C0959655J

Control Unit Seat Ibiza 6J VW Polo 6C 6R Air Module Unit ECU Bosch 6C0959655J

PLN 189.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 028903025G

Volkswagen Polo 6N Alternator Generator BOSCH 14V 70A 028903025G

PLN 260.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 4H0919275-SHB

VW Golf Mk6 Audi TT 8J Parking Distance Control Sensor Shark Blue Metallic - A5Q

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Showing 1-99 of 390 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