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. 6857701

BMW 1 2 3 F20 F21 F22 F30 F31 ECU ICM Plus Control Unit Module 6857701

PLN 75.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 5A18364

BMW F40 Heater Air Conditioning System Control Unit Module ECU 5A18364

PLN 142.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 6986987

BMW Z4 Series E85 Cable Loom Passenger's Door Wiring Harness 6986987 6986982

PLN 142.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 8792148

Navigation Headunit BMW F20 F22 F30 Mini F55 F56 Head Unit Basic Media

PLN 569.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 9281518

BMW F20 F21 F22 F30 Radio Professional CD Bluetooth Headunit Control 9281518

PLN 569.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 6970904

BMW 7 Series E65 E66 E67 Sensor Rear Seat Airbag 65776970904 6970904

PLN 46.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. 7187221

BMW F01 F02 F03 LCI Rear Third Stoplamp Stop Lamp Brake Light 7187221

PLN 42.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. 7857786

BMW F09 F10 F12 F13 Differential Locking Module Control Unit ECU 7857786

PLN 189.95

Free delivery - Tue, Jan 13

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 - Tue, Jan 13

If paid before 14:00

Part no. 6791131

BMW F01 ICM Module Integrated Chassis Management QL ES Control Unit 6791131

PLN 142.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 8510221-13

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

PLN 759.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 6966551

BMW 5 Series E60 E61 Front Door Wiring Loom Harness Passengers Side 6966549

PLN 104.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 9234942

Telematics Module BMW E81 E87 E90 E91 E92 LCI Combox Navigation 9234942

PLN 474.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 9393144

BMW G11 G30 Fuse Box Power Distribution Electrical Control Unit Box Rear 9393144

PLN 142.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 9290357

BMW F10 F20 F22 F30 Navigation Head Unit Harman Sat Nav Unit High 9290357

PLN 1,899.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 6952477

BMW 5 Series E60 E61 Centre Console Switch Centre DTC PDC 6952477

PLN 85.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 9206936

BMW F12 Antenna Aerial Noise Suppression Filter Control Unit Right O/S 9206936

PLN 61.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 7595179-2

BMW 1 Series E81 E87 LCI N43 116i 2.0 Petrol ECU Kit 7595179 DME CAS3 Key

PLN 759.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 9326452

Door Wiring Harness BMW F34 Rear Left Right Door N/O/S Wiring Loom 9326452

PLN 142.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 9267511

BMW X5 E70 Body Control Module Main Primary ECU Unit JBBFEIII R LP 9267511

PLN 664.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 3417586

Electronic Box BMW X3 E83 LCI 2.5si 3.0si N52N Control Unit Mount Holder 3417586

PLN 61.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 9231280-TS

BMW F07 Parking Module PDC Distance Control Unit Sensor Titan Silver - 354

PLN 94.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 9365819

BMW X5 F15 Wiring Rear Right O/S Door Harness Loom 9365819

PLN 75.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 9337205

BMW F32 Door Wiring Front Door Right Loom Cable Wiring Harness 9337205

PLN 94.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 9329339

BMW F32 Telematics Telephone Control Unit Module Bluetooth TCB ECE 9329339

PLN 75.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 6886185

ICM Module BMW F20 F21 F30 F31 Crash Control Unit Airbag ECU 6886185 0265020864

PLN 56.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. 6989713-1

BMW E88 E89 E93 Convertible Cabrio DWA-Alarm System Module Set Of 2 6989713

PLN 61.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 8511372-2

BMW F01 F07 530d 730d N57 Engine Control ECU Kit DDE 8511372 CAS4 Key Automatic Gearbox

PLN 1,187.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 9241825

Central Information Display BMW F10 F11 LCI Boardmonitor Screen 7" 9241825

PLN 61.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 9798377-1

BMW F45 LCI 225xe B38X B38A15A 224HP Engine ECU DME Kit 9798377 BDC + Key

PLN 1,424.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 6885215

BMW F90 M5 F91 M8 G05 G11 G30 Steering Column Control Unit Module 6885215

PLN 42.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. 9288770

BMW F20 F21 F22 Mid Range Sound Speaker Stereo HiFi 9288770

PLN 42.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. 9232896

Dashboard Monitor BMW X5 X6 E70 E71 Onboard Display Screen 8,8" 9232896

PLN 474.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 8650701-1

BMW F80 M3 F82 F83 M4 S55 431HP Engine Module ECU DME Kit 8650701 Automatic

PLN 4,749.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 9224588

BMW E81 Footwell Light Module Control Unit ECU BASIS PL2 FRM3R 9224588

PLN 617.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 7516404

BMW E60 Cable Starter Generator Alternator B+ Base Wire Harness 7516404

PLN 94.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 9258350

Air Module BMW F20 F21 F22 F30 F31 F32 Control Unit ECU 9258350

PLN 61.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 8518568

BMW F20 F30 F32 120d 320d 420d Diesel N47N 184HP Engine Control ECU DDE 8518568

PLN 142.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 9194824

BMW Z4 E89 Convertible Roadster Air Module ECU Control Unit 9194824

PLN 332.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 9193110

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

PLN 332.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 9288304

FEM Module BMW F20 F21 F22 F30 F31 F32 F36 Control Unit 9288304

PLN 360.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 9267205-2

Junction Box BMW X1 E84 ECU Body Control Module H2 PL2RR JBBFE IIIR 9267205

PLN 94.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 8368167

BMW E38 Inclination Indicator Alarm Tilt Sensor Control Module 8368167

PLN 47.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. 6944875

BMW E36 Z4 E85 Z3 Module Radar Burglar Alarm Sensor 6944875

PLN 42.95

Delivery - Tue, Jan 13

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 - Tue, Jan 13

If paid before 14:00

Part no. 8582280-3

BMW F20 F21 116d N47N 116HP ECU Kit DDE 8582280 + Key + Lock + FEM Manual

PLN 1,234.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 6960803

BMW E65 E66 E67 Control Unit Voice Input System Module 6960803

PLN 42.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. 5A08530

Fuel Pump Control BMW G30 G12 Mini F60 Tank Function Module Unit ECU 5A08530

PLN 113.95

Free delivery - Tue, Jan 13

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 - Tue, Jan 13

If paid before 14:00

Part no. 6766003

BMW X3 E83 Z4 E85 E86 Fuel Pump Module Control Unit 6766003

PLN 42.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. 1742690-1

BMW E60 E81 E87 E90 E91 X3 E83 Relay Changer Make Contact Salmon Red Set 1742690

PLN 42.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. 9394665

BMW F10 Footwell Light Module Control Unit ECU 9394665

PLN 474.95

Free delivery - Tue, Jan 13

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 - Tue, Jan 13

If paid before 14:00

Part no. 6936801

BMW Z4 E85 Roadster Cabrio Convertible Folding Top Roof Module

PLN 142.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 9286110

BMW F20 F21 F30 F31 F32 Body Control Comfort Module Unit FEM ECU LR01 9286110

PLN 379.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 9335350

BMW F30 F31 F34 GT Radio Professional DAB CD Player 9335350

PLN 949.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 8574091

BMW F10 F11 520d N47N 184HP Engine Control Unit ECU DDE 8574091 Automatic

PLN 284.95

Free delivery - Tue, Jan 13

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 - Tue, Jan 13

If paid before 14:00

Part no. 9265835

Fuse Box Holder BMW X5 F15 X6 F16 Control Unit Module Bracket Carrier 9265835

PLN 42.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. 8506374-3

BMW E81 E87 E90 LCI 120d 320d N47 ECU Kit DDE 8506374 CAS3 + Key Manual

PLN 949.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 6926961-1

BMW E60 E61 X5 E70 X6 E71 F07 F10 F11 Seat Adjustment Switch Left N/S 6926961

PLN 42.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. 9267467

BMW F13 Body Control Module Electronic Junction Box JBBFE 3 PL6 V3 9267467

PLN 284.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 9252651

BMW 1 2 3 Series F20 F21 F22 F30 Radio Remote Control Receiver 868 MHZ 9252651

PLN 47.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. 9176884

BMW E93 ECU Body Control Module H3 Junction Box 61359176884 9176884

PLN 75.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 7843338

Engine Wiring BMW F10 M5 F13 M6 Valvetronic Servomotor Cable Loom 7843338

PLN 142.95

Free delivery - Tue, Jan 13

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 - Tue, Jan 13

If paid before 14:00

Part no. 7624619

BMW F10 Cable Generator Alternator Starter Base B+ 7624619

PLN 113.95

Free delivery - Tue, Jan 13

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 - Tue, Jan 13

If paid before 14:00

Part no. 9154413

BMW E93 Convertible GPS Aerial Antenna Unit Module 9154413

PLN 61.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 8510591-7

BMW X1 E84 2.0d N47 177HP sDrive Engine Control Unit ECU DDE 8510591 Manual

PLN 807.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 7839665

BMW E90 E92 E93 LCI M3 S65 Cable Alternator Starter Wiring 7839665

PLN 284.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 8606306

BMW F10 F11 F30 184 HP Petrol N20 Engine Control Unit ECU DME 8606306 Manual

PLN 1,662.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 6826201

Junction Point BMW X5 F15 X6 F16 B + Battery Power Distributor 6826201

PLN 94.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 8576341

BMW F20 F21 F30 F31 118d 318d 143HP N47N Engine Control ECU DDE 8576341 Manual

PLN 189.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 9354457

BMW F20 F30 F31 F32 Front Seat Control Unit Module ECU 9354457

PLN 189.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 3412574

BMW X3 Series E83 Rear Left Right Door N/O/S Wiring Loom Cables 3412574

PLN 42.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. 6824116

BMW 3 F30 LCI 330e Hybrid High Voltage Battery Wiring Inverter Cable 6824116

PLN 379.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 8058634

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

PLN 474.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 9337807

Door Speaker BMW F15 F16 Front Rear Loudspeaker HiFi Audio Speaker 9337807

PLN 61.95

Free delivery - Tue, Jan 13

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 - Tue, Jan 13

If paid before 14:00

Part no. 6871062

BMW F01 F07 F10 F12 VDC Module Rear Suspension Level Control Unit 6871062

PLN 142.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 7853357

Engine Wiring BMW F87 M2 N55 Petrol Loom Module 1 Harness Cable 7853357

PLN 664.95

Free delivery - Tue, Jan 13

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 - Tue, Jan 13

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 - Tue, Jan 13

If paid before 14:00

Part no. 9186655

BMW 3 Series E92 Front Right O/S Driver Side Door Wire Wiring Loom 9186655

PLN 47.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. 9270354-1

Mini F55 F56 BMW F45 X1 F48 Rear Electric Power Distribution Fuse Box 9270354

PLN 42.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. 6929701

BMW 7 Series E65 E66 Alarm System Ultra Sonic Module 65756929701 6929701

PLN 42.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. 6789514

BMW X6 E71 ICM Integrated Chassis Management Control Unit Brakes 6789514

PLN 237.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 3421562

Engine Wiring Harness BMW X3 E83 2.0i N46 Wiring Loom Manual Gearbox 3421562

PLN 142.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 9301309

Air Conditioning Unit BMW F20 F21 F30 F31 Control Unit A/C Module 9301309

PLN 94.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 9117801

Battery Bracket BMW X3 G01 X4 G02 Rear Holder Mount Carrier Support 9117801

PLN 75.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 8574351-3

BMW X1 E84 18d 18dX Diesel N47N 143HP Engine Unit ECU DDE 8574351 Automatic

PLN 379.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 9231283-AZB

BMW E70 F10 F11 PDC Parking Sensor Ultrasonic Sensor Azurit Black - S34 9231283

PLN 42.95

Delivery - Tue, Jan 13

If paid before 14:00

Part no. 7855481

BMW F90 M5 F92 M8 Oil Level Sensor Wiring Harness Loom Cable 7855481

PLN 218.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 9279823

BMW F30 REM Rear Electronic Module Fuse Box Control 9279823

PLN 61.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 9365764

Head Unit BMW F10 F20 F22 F30 Navigation Sat Nav High Control Module 9365764

PLN 949.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 8513161-1

BMW F10 F11 530d N57 245HP Engine Control Unit ECU Kit DDE 8513161 CAS4 2 Keys

PLN 997.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 9132254

BMW Z4 E85 E86 CID Control Unit CD Player Radio Audio System 9132254

PLN 807.95

Free delivery - Tue, Jan 13

If paid before 14:00

Part no. 9128602

Cables Wiring BMW E81 E87 LCI Front Bumper PDC Loom Set 9128602

PLN 123.95

Free delivery - Tue, Jan 13

If paid before 14:00

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Showing 1288-1386 of 4791 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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