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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Part no. 6857314

Crash Module BMW F01 F02 LCI F10 F11 F13 ICM Control Unit ECU

PLN 61.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9204842

BMW X5 Series E70 Individual Audio System Amplifier Top-hifi Lear PL5 9204842

PLN 1,423.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9382418

BMW F45 X1 F48 G30 Telematics Module Bluetooth Telephone Control Unit 9382418

PLN 94.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9159332

BMW F01 F10 F11 Heater Fan Blower Unit Motor Wiring Cable Harness 9159332

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 8574095

BMW F20 F21 F30 F31 116d 316d 118d 318d Diesel N47N Engine ECU 8574095 Manual

PLN 170.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 6865298

BMW F20 F21 F30 F31 ECU ICM Plus Control Unit Module Airbag 6865298

PLN 43.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 8517862-5

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

PLN 94.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 1709317

BMW X5 E53 E60 E61 E63 E64 Petrol Engine Ping Knock Sensor 1709317

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 9134661

BMW E87 E90 E91 E92 Seat Control Unit Module ECU 9134661

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 8678968

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

PLN 474.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 8517862-3

BMW F20 F30 F32 120d 320d 420d Diesel N47N 184HP ECU Kit DDE 8517862 + Key + FEM

PLN 1,044.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 6958525

BMW X5 X6 E60 E61 E70 E71 F07 F10 F11 Seat Adjustment Switch Left N/S 6958525

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 8582279

BMW F30 320d ed Diesel N47N 184HP Engine Control Unit ECU DDE 8582279

PLN 237.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 8518268

BMW E90 E91 LCI N47N 318d Diesel Engine Control Unit DDE ECU Manual 8518268

PLN 237.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9382401

BMW F30 LCI 330e Hybrid High Voltage Electronics Unit Holder Support 9382401

PLN 94.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 6913896

BMW Z4 E85 E86 Aerial Antenna Amplifier Module Rod 6913896

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 9335289

BMW F20 Door Cable Harness Wiring Front Right O/S 9335289

PLN 75.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 7374942

BMW F20 F21 F30 F31 Fuel Pump Control Unit Module 7374942

PLN 61.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 3448250

BMW X3 E83 Front Door Window Lifter Regulator Motor Right O/S 3448250

PLN 142.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 6960225

BMW E65 E66 E67 Sensor Vehicle Centre Air Control Unit Module 6960225

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 6835155

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

PLN 66.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 8671504-1

Starter BMW G20 G21 G30 G32GT G01 G05 Starter Motor Valeo 8671504

PLN 237.95

Free delivery - Mon, Nov 24

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 - Mon, Nov 24

If paid before 14:00

Part no. 6863389

BMW F20 F21 F30 F31 ECU ICM Plus Control Unit Module Airbag 6863389

PLN 75.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9216459

BMW 1 3 5 E60 E81 E87 E90 E91 Mini R55 R56 DAB Radio Tuner Module 9216459

PLN 142.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 6931987

BMW 7 Series E65 E66 E67 Control Unit Voice Input System Module 6931987

PLN 55.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 8576333-1

BMW F10 F11 520d X3 F25 20dX N47N 184HP ECU Kit DDE 8576333 Key CAS4 Automatic

PLN 902.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9145350

BMW X3 E83 LCI EWS IV 4.4 Control Unit Module ECU 9145350

PLN 260.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9312768

BMW F06 F07 F10 F11 Comfort Module Body Control Unit Module BCM Unit ECU 9312768

PLN 189.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 8512499-1

BMW E81 E87 E90 E91 LCI N47 143HP Diesel ECU Kit DDE 8512499 Manual

PLN 569.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 7795021

BMW E60 E61 E63 LCI Earth Cable Electrical Battery Wiring 7789757

PLN 61.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 8590102

Alternator Cable BMW 5 G30 G31 G12 B57 Battery Wiring Alternator B+ 8590102

PLN 141.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 8506281

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

PLN 94.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 6980177-3

BMW E81 E87 E90 E91 F10 F11 X5 E70 Relay Unit Green Set TYCO 5 Pins 6980177

PLN 61.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 2284105

Parking Brake Module BMW F10 M5 F12 F13 M6 Control Unit Lock Module 2284105

PLN 313.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 1702103

Battery Terminal Cover BMW E39 Mini R50 R52 R53 Trim Base B + Positive 1702103

PLN 61.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9252549

BMW F12 Front Seat Control Unit Module Memory ECU 9252549

PLN 237.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9380322

BMW F01 F02 F03 F10 F11 F13 Central Gateway Control Lear Module Unit ECU 9380322

PLN 142.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9231179

Antenna Amplifier BMW F30 F80 M3 F82 M4 Rear Aerial Booster AM/FM DAB 9231179

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 6980177

BMW X1 X3 X5 X6 Z4 Z8 Relay Changeover Function Green 6980177

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 9330952

BMW F13 F12 Air Control Module Control Unit ACSM4 9330952

PLN 94.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9231283-IBB

PDC Parking Sensor BMW X5 E70 F10 Ultrasonic Sensor Imperial Blue A899231283

PLN 61.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 7799855-2

BMW 1 3 5 Series E60 E87 E90 M47N2 120d 320d 520d ECU Kit DDE CAS2 Key 7799855

PLN 1,139.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 8507880

BMW 1 3 Series F20 F21 F30 F31 N47N Wiring Loom Harness Engine Gearbox Module

PLN 93.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9347470

BMW 1 3 Series F20 F21 F30 Control Unit Controller Touch 9347470

PLN 275.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 2992478-3

Plug Socket BMW X1 E84 Rear Light In The Side Panel Right O/S Wiring 6984754

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 9298961

BMW F20 F21 F30 F31 F32 Body Control Unit Module REM 9298961

PLN 75.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 8632554

Fuse Box Cover BMW X3 G01 X4 G02 Trim Panel Lid Housing Bracket 8632554

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 9348726-1

BMW F20 F21 F30 F31 Air Module Control Unit ECU 9348726 0285012518

PLN 123.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9231466

BMW 2 3 4 Series F22 F30 F32 Antenna Amplifier Module Trap Circuit 9231466

PLN 37.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 6929554

BMW E65 E66 Door Air Module Sensor Control Unit Front Right O/S 6929554

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 7624617-1

BMW F20 F21 F30 F31 F32 Cable Alternator Starter Base B 7624617

PLN 47.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 9329339

BMW F32 Telematics Telephone Control Unit Module Bluetooth TCB ECE 9329339

PLN 75.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9126106

BMW Mini R55 R56 R57 Cabrio Adapter Lead Outside Temperature Sensor 9126106

PLN 28.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 7561834-13

BMW E87 E90 120i 320i N46 150HP Engine Control DME Module 7561834 Automatic

PLN 664.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9177754

BMW E60 E87 E90 Telematics Bluetooth Control Unit Module 9177754

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 9271216

BMW X3 F25 Rear Bumper PDC Wiring Loom Parking Sensor Cable Harness 9271216

PLN 189.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9279823

BMW F30 REM Rear Electronic Module Fuse Box Control 9279823

PLN 61.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9301522

BMW F01 F02 F07 F10 F11 CAS4 Control Unit Key Reading Module 9301522

PLN 284.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9350003-1

Safety Control Unit BMW F01 LCI F07 F10 F11 F25 Air Module Bag ECU 9350003

PLN 94.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 8380944-1

BMW E46 E65 E66 E67 Aerial Antenna Amplifier Radio Signal Trap Circuit 8380944

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 8362063

BMW X5 Z4 E46 E53 E85 Drive Window Lifter Motor Left N/S Front 8362063

PLN 42.95

Delivery - Mon, Nov 24

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 - Mon, Nov 24

If paid before 14:00

Part no. 8482313

BMW G30 Engine Wiring Loom Harness Ignition Module 8482313

PLN 284.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 8574351-2

BMW X1 E84 18dX Diesel N47N Engine Unit ECU Kit DDE 8574351 Manual

PLN 569.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 6928461

BMW E46 E60 E61 E63 E81 E87 E90 E91 X3 E83 X5 E53 E70 Bluetooth Antenna 6928461

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 9193748

BMW E60 E63 On-board Navigation Display Monitor Screen 6,5" 9193748

PLN 61.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 8574024

Engine Wiring BMW F30 F31 335dX N57Z Automatic Gearbox Cable Harness 8574024

PLN 151.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9216128

BMW 3 4 5 Series E92 F32 E61 LCPA Seat Belt Module ECU 9216128

PLN 94.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 6982402-1

Parking Control Module BMW E81 E84 E87 E90 E91 E92 E93 Unit PDC 6982402

PLN 237.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9140179

BMW F10 Radio Antenna Amplifier Suppression Filter 9140179

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 8577839-1

BMW F32 F33 430d N57N 258HP Engine ECU DDE Kit 8577839 FEM + Key Automatic

PLN 949.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9118468

BMW X5 X6 Series E70 E71 Seat Backrest Adjustment Adapter Lead Cable 9118468

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 8633997

Ground Line BMW G11 G12 G20 G30 G31 Battery Earth Cable Wire 8633997

PLN 61.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 8379941

BMW X5 Series E53 Interior Roof Trim Cover Ultra Sonic Module Alarm 8379941

PLN 37.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 9266383

Display Screen BMW F12 F13 Central Information Monitor 10" Multimedia 9266383

PLN 607.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9267205

BMW E91 Touring LCI ECU Body Control Module Junction Box H2 9267205

PLN 61.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 8602994

BMW 1 X1 X2 Series F39 F40 F48 Mini Cooper One F55 F56 Earth Cable Wire 8602994

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 9365837

BMW F20 F21 F22 F30 F31 Head Unit Basic Media Headunit 9365837

PLN 664.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9327318

BMW 1 2 3 4 5 F10 F20 F22 F30 F32 Navigation Sat Nav DAB Head Unit High 9327318

PLN 1,472.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 1388911-2

BMW E36 E38 E85 Mini R52 R57 4x Change-Over Contact Relay Violet Set 1388911

PLN 56.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 9171925

BMW E88 Convertible Air Module Sensor ECU Control Unit Module 9171925

PLN 94.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9383182

BMW F20 F21 F22 F30 F31 F32 F36 Body Control Module Unit FEM LR01 9383182

PLN 854.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9282285

BMW X3 F25 Central Gateway Module Control Unit ECU 9282285

PLN 94.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9124585-SED

BMW E87 E90 PDC Parking Sensors Ultrasonic Set x2 Sedonarot - A79 9124585

PLN 61.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 7638192

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

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 6945387

BMW X3 X5 Series E53 E83 E87 Hands-free Electronics Charging Module MULF 6945387

PLN 94.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 8634244

Engine Wiring BMW F45 Mini F60 B38 Loom Harness Injection Valve Ignition 8634244

PLN 94.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 7810000

BMW E60 E81 E87 LCI E90 120d 320d 520d N47 Engine Control Unit ECU DDE 7810000

PLN 284.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9177784

BMW X5 E70 X6 E71 X6 E72 Map Fuse Box Grouping Diagram Card 9177784

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 6794618

EMF Actuator BMW F10 F12 Brake Caliper Parking Brake Unit Electric 6794618

PLN 94.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 7638005

BMW F20 F30 F32 Earth Ground Cable Negative Battery Lead Wiring 7638005

PLN 94.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 6771182

BMW E90 E91 E92 E93 Longitudinal Dynamic Module Cruise Control 6771182

PLN 42.95

Delivery - Mon, Nov 24

If paid before 14:00

Part no. 7615305

Engine Wiring BMW F20 F21 F30 F31 N13 Loom Module Harness Cable 7615305

PLN 189.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 6875997

ICM Control Unit BMW F01 F02 LCI F06 F10 F11 F13 ECU Module 6875997

PLN 113.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9305736

BMW X1 E84 ECU Body Control Module Junction Box H2 PL2RR JBBFE IIIR 9305736

PLN 189.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 9240077

BMW E93 Cabrio Convertible Folding Top Roof ECU Module CTM 9240077

PLN 94.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 8639595-2

BMW F30 320i F32 420i N20 184HP Engine ECU Control Unit DME 8639595 Automatic

PLN 1,709.95

Free delivery - Mon, Nov 24

If paid before 14:00

Part no. 8381020

BMW X5 Series E53 Drive For Window Lifter Front Right O/S 8381020

PLN 66.95

Free delivery - Mon, Nov 24

If paid before 14:00

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Showing 1288-1386 of 4686 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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