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. 8W0915181A

Audi A5 F5 HV Battery Negative Cable Terminal 8W0915181A

PLN 123.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. A2059007521

Module Mercedes W205 Air Conditioning A/C System Control Module A2059007521

PLN 61.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. A2038301613

Mercedes C CLK Class W203 C209 Engine Bay Fuse Box Right O/S Cover A2038301613

PLN 56.95

Delivery - Tue, Nov 25

If paid before 14:00

Part no. 6921857

BMW X5 E39 E46 E53 Motorola Hands-free Electronics Control Unit ECU 6921857

PLN 42.95

Delivery - Tue, Nov 25

If paid before 14:00

Part no. A0009821012

Mercedes W166 W213 C238 Power Distribution Plate Control Unit Module A0009821012

PLN 42.95

Delivery - Tue, Nov 25

If paid before 14:00

Part no. 9352750

BMW X6 F16 F86 Camera Kafas Front Windscreen Camera Module 9352750

PLN 113.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. 6907520

BMW 5 X5 Series E39 E53 Dual Band Cable Compensator Hands Free Phone 6907520

PLN 75.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. 5TRK0200UK

BMW X5 E53 GPS Vehicle Location Tracker Control Unit Module ECU 5TRK0200UK

PLN 47.95

Delivery - Tue, Nov 25

If paid before 14:00

Part no. 9335289

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

PLN 75.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. A0003427200

Mercedes EQA350 H243 4matic Electric Voltage Converter Module A0003427200

PLN 1,614.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. 5Q0962131

Antenna Control Module Audi Q3 RSQ3 F3 Line Keyless Entry 5Q0962131

PLN 42.95

Delivery - Tue, Nov 25

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, Nov 25

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Part no. 8K0959754H

Audi A5 8T Remote Button Smart Key Fob Unit 8K0959754H

PLN 42.95

Delivery - Tue, Nov 25

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Part no. 8Y0971693D

Audi S3 8Y Sportback Rear Door Wiring Harness Loom Left Right N/O/S 8Y0971693D

PLN 94.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. 7604782

Mini R55 R56 LCI R60 Alternator Generator Bosch 150A Petrol 7604782

PLN 66.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. 9337879

BMW 1 3 4 Series F20 F21 F30 F31 F34 Power Distribution Fuse Box Front 9337879

PLN 85.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. A1679008812

Seat Module Mercedes W167 W177 W247 Control Unit ECU A1679008812

PLN 161.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. 3414469

BMW X3 E83 Fuse Grouping Front Stick-on Label Diagram 9267980

PLN 42.95

Delivery - Tue, Nov 25

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Part no. 9353066

BMW F20 F21 F30 F31 Relay Cover Electric Fan Relay Cap 9353066

PLN 47.95

Delivery - Tue, Nov 25

If paid before 14:00

Part no. 9274428

Mini Cooper F54 F55 F56 F57 F60 PDC Parking Sensor Ultrasonic Black 9274428

PLN 61.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. A6541400155

Mercedes-Benz W213 Genuine Gas Filter Pressure Line Sensor Dpf A6541400155

PLN 85.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. A2044401705

Mercedes S204 Door Wiring Loom Cable Rear Left Right N/O/S A2044401705

PLN 46.95

Delivery - Tue, Nov 25

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, Nov 25

If paid before 14:00

Part no. 7404880

Fuel Pump Module BMW F20 F21 F30 F31 Control Unit ECU 7404880

PLN 61.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. 8E0909518AQ-1

Audi A4 B7 1.8T BZB 163HP Engine Control Unit Module ECU Set 8E0909518AQ

PLN 807.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. 6882963

Air Module BMW F01 F02 LCI F07 GT F10 F11 F13 ECU ICM Control Unit 6882963

PLN 142.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. 8510137

BMW F10 F11 520d Diesel N47N 184HP Engine ECU Control Unit DDE 8510137 Automatic

PLN 474.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. 079903021JX

Audi S8 D3 S6 C6 Alternator Water Cooled 190A 14V 5.2 FSI V10 079903021J

PLN 474.95

Free delivery - Tue, Nov 25

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, Nov 25

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 - Tue, Nov 25

If paid before 14:00

Part no. 8366625

BMW 259 259R 259 R22 Connection Plug Relay Pink Tyco 8366625

PLN 42.95

Delivery - Tue, Nov 25

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Part no. A2469017000

Mercedes W176 Windscreen Rain Sensor Unit Module A2469017000

PLN 99.95

Free delivery - Tue, Nov 25

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 - Tue, Nov 25

If paid before 14:00

Part no. A2129004910

Radio Head Unit Mercedes W212 CD Audio Player Head Control Unit A2129004910

PLN 284.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. 9218380

Steering Wheel Module BMW F10 F11 F20 F21 F30 F31 Heating Control Unit 9218380

PLN 189.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. 8580061

BMW F40 F48 Mini F55 F56 Battery Starter Cable Wiring Loom B47B B47D 8580061

PLN 42.95

Delivery - Tue, Nov 25

If paid before 14:00

Part no. 6926460

AUC Sensor BMW E60 E61 E65 X5 E70 X6 E71 Mini R56 R57 Air Control 9136607

PLN 94.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. 8K0959793J

Audi A4 B8 Door Module Front Right O/S Control Unit Module ECU 8K0959793J

PLN 47.95

Delivery - Tue, Nov 25

If paid before 14:00

Part no. 8582279-8

BMW F30 F32 F34 GT 320d 420d N47N 184HP Engine Module Unit ECU DDE 8582279

PLN 189.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. A1725403405

Mercedes R172 OM651 Diesel Alternator Wiring Harness Cable Loom A1725403405

PLN 94.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. A2469066600

Fuse Box Mercedes W156 W176 W246 Front Relay Control Unit Module A2469066600

PLN 113.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. 6956746

BMW E81 E87 E90 LCI PDC Parking Ultrasonic Sensor Monaco Blue A35 6956746

PLN 42.95

Delivery - Tue, Nov 25

If paid before 14:00

Part no. 6858698

BMW F20 F21 F22 F30 F31 ECU ICM Plus Control Unit Module 6858698

PLN 42.95

Delivery - Tue, Nov 25

If paid before 14:00

Part no. 8585380-1

BMW F30 330d F32 430d N57N 258HP Control Unit ECU Kit DDE 8585380 FEM Key

PLN 1,234.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. 3456946

Mini Cooper R55 R56 R57 LCI R58 R59 CHAMP 2 Navigation 9270726

PLN 949.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. 8573257-1

BMW F20 F30 F32 120d 320d 420d Diesel N47N 184HP ECU Kit DDE 8573257 Automatic

PLN 474.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. 6953424-3

BMW Z4 E85 E86 Positive Battery Cable Plus Pole Lead 6953424

PLN 123.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. 9240077

BMW E93 Cabrio Convertible Folding Top Roof ECU Module CTM 9240077

PLN 94.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. 7601799

Earth Ground Cable BMW X3 F25 Battery Cable Engine Wiring 7601799

PLN 94.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. A0005400502

Mercedes W212 W221 W447 W906 Adblue Injector Wiring Cable Loom A0005400502

PLN 70.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. A2059006213

Mercedes W205 Rear Door Module Control Unit ECU Left N/S A2059006213

PLN 94.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. 4H0971224BA

Audi A8 D4 Alternator Starter Motor Wiring Harness Cable Loom 4H0971224BA

PLN 427.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. 9270356-2

Fuse Carrier BMW F40 Mini F55 F56 F57 F60 Distribution Box 9270356

Product currently unavailable

Part no. 7168153

BMW MINI Cooper One Clubman R55 R55N LCI Wiper Motor Window Left Rear N/S 716815

PLN 47.95

Delivery - Tue, Nov 25

If paid before 14:00

Part no. 9298945

BMW X1 E84 ECU Body Control Module Junction Box H2 PL2RR JBBFE IIIR 9298945

PLN 474.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. 9164355

Battery Cable BMW E81 X1 E84 E87 Lead Negative 9123571

PLN 94.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. A2039000000-1

Mercedes CL203 Head Unit CD Player Radio Audio Controller Unit A2039000000

PLN 379.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. 9243896

Central Information Display BMW F10 F11 LCI Boardmonitor Screen 7" 9243896

PLN 94.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. 6821206

BMW F45 F46 F48 Battery Cable IBS Negative Battery Lead 6821206

PLN 42.95

Delivery - Tue, Nov 25

If paid before 14:00

Part no. 167859

BMW X5 Series E53 Widescreen Motorway and Trunk Road Unit Module 167859

PLN 93.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. 8635816

Engine Wiring BMW F20 F30 F31 LCI B38 Automatic Gearbox Loom Harness 8635816

PLN 237.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. 9226882

BMW F20 F21 Rear Antenna Aerial Amplifier AM/FM DAB 9226882

PLN 75.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. A2208203226

Seat Heating Sensor Mercedes W209 W211 W220 Left N/S Control Unit A2208203226

PLN 56.95

Delivery - Tue, Nov 25

If paid before 14:00

Part no. A2118700726

Mercedes W211 Seat Memory Control Unit Module Front Right O/S A2118700726

PLN 118.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. 1K0915181H

Audi A3 8P Negative Cable Battery Terminal Wiring Loom 1K0915181H

PLN 61.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. 6970889

BMW 7 Series E65 E66 E67 Sensor Vehicle Centre Airbag 6970889

PLN 75.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. 7P6907357B

Volkswagen Golf Mk7 Headlight Head Lamp Range Control Unit Module ECU 7P6907357D

PLN 189.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. 8W0947356E

Audi A5 S5 F5 Interior Door Panel Courtesy Light LED Wiring Harness 8W0947356E

PLN 42.95

Delivery - Tue, Nov 25

If paid before 14:00

Part no. 9876796

Telematics Module Mini F55 LCI 4g Bluetooth Control Module Unit Ecu 9876796

PLN 284.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. A1698705894

Mercedes W169 W245 CD Player Radio Stereo Head Unit A1698705894

PLN 284.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. 8R0867749A

Porsche Macan 95B Battery Holder Strap Mounting Bracket Clamp 8R0867749A

PLN 94.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. A4479060400

Mercedes W447 Fuse Relay Box Module Control Unit A4479060400

PLN 263.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. A2048205189

Mercedes-Benz C-Class W204 Aerial Antenna Amplifier Unit A2048205189

PLN 75.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. 9142218

BMW X3 E83 LCI PDC Parking Ultrasonic Sensor Silver Grey 9142218 9139866

PLN 42.95

Delivery - Tue, Nov 25

If paid before 14:00

Part no. 8639595-9

BMW F30 320iX N20 163HP Engine Unit ECU Kit DME 8639595 FEM + Key Automatic

PLN 1,899.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. 6927311

BMW E60 Front Seat Control Unit Module Controller ECU 6927311

PLN 61.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. 382327

Ultrasonic Module Mini Countryman Paceman R60 R61 Alarm System Sensor 0382327

PLN 42.95

Delivery - Tue, Nov 25

If paid before 14:00

Part no. 3450847

BMW X3 E83 LCI Cable Loom Door Passenger Side Wiring Harness 3450838

PLN 100.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. A2048702426

Mercedes W204 Door Module Rear Left N/S Control Unit Module A2048702426

PLN 42.95

Delivery - Tue, Nov 25

If paid before 14:00

Part no. 5Q0937084AE

Audi A3 8V Module BCM Body Control Unit Module ECU 5Q0937084AE

PLN 142.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. 2100493N

Audi A5 8T Seat Cable Front Left Right N/O/S Wiring Loom Harness 2100493N

PLN 42.95

Delivery - Tue, Nov 25

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Part no. A1695457740

Mercedes-Benz A B W169 W245 Bracket Starter Alternator Control Unit A1695457740

PLN 28.95

Delivery - Tue, Nov 25

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Part no. A2469064201

Antenna Amplifier Mercedes X117 W176 W205 Rear Aerial Module A2469064201

PLN 127.95

Free delivery - Tue, Nov 25

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Part no. 6842527

BMW G20 Battery Terminal Voltage Distribution Box 400W MID 6842527

PLN 132.95

Free delivery - Tue, Nov 25

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Part no. A2128204185

Mercedes W204 W212 Door Module Control Unit Module Rear Right O/S A2128204185

PLN 42.95

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Part no. 8K0907279

Audi A5 8T Gateway Convenience Body Module Control Unit ECU 8K0907279C

PLN 42.95

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Part no. 9117877

BMW F20 F21 F30 F31 F32 F33 Negative Minus Pole IBS Battery Lead Cable 9117877

PLN 42.95

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Part no. 9264973-1

BMW X5 E70 Seat Control Unit Module ECU 9264973

PLN 332.95

Free delivery - Tue, Nov 25

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Part no. 8P4035223B

Audi S3 8P Audio Sound BOSE Amplifier Stereo System Module 8P4035223B

PLN 284.95

Free delivery - Tue, Nov 25

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Part no. 8507912

BMW F30 F31 Engine Wiring Loom N47N Harness Automatic Gearbox 7549282

PLN 189.95

Free delivery - Tue, Nov 25

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Part no. A1679001520

Mercedes C118 W167 W177 W247 Ignition Control Module Unit ECU A1679001520

PLN 522.95

Free delivery - Tue, Nov 25

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Part no. 7L0937401

Volkswagen Touareg 7L Positive Cable Battery Point Box Jump Unit 7L0937401

PLN 42.95

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Part no. A2118201526

Mercedes S211 Rear Door Control Module Left N/S A2118201526

PLN 42.95

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Part no. 9308373

BMW X6 E71 Footwell Light Control Unit Module FRM3R LEAR 9308373

PLN 379.95

Free delivery - Tue, Nov 25

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Part no. A1179001802

Mercedes W176 Air Module Belt Locking System Control Unit Module ECU

PLN 113.95

Free delivery - Tue, Nov 25

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Part no. A2059005222

Seat Module Mercedes W205 W253 Memory Control Unit Passenger's Side A2059005222

PLN 161.95

Free delivery - Tue, Nov 25

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Part no. 9339192

BMW F45 F46 Battery Cable Positive Wire Lead Terminal 9339192

PLN 66.95

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Part no. A1725401450

Mercedes SLK R172 Fuse Box Power Distribution Control Module Unit A1725401450

PLN 94.95

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Part no. A2469006816

Mercedes W176 W231 W246 Electric Parking Brake Control Unit Module A2469006816

PLN 42.95

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...

Showing 1387-1485 of 11506 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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