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. 7168154

Mini Clubman R55 LCI Wiper Motor Actuator Window Right Rear O/S 7168154

PLN 42.95

Delivery - Tue, Nov 25

If paid before 14:00

Part no. 7L0941824B

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

PLN 42.95

Delivery - Tue, Nov 25

If paid before 14:00

Part no. 9286943

BMW 5 F11 Touring Body Control Module ECU Junction Box V7 PL6 JBBFE III 9286943

PLN 189.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. 9185536

BMW E90 E91 E92 Professional CCC Navigation System Controller 9185536

Product currently unavailable

Part no. A0015454416

Mercedes CL203 M271 Automatic Gearbox EGS Control Module Unit ECU A0015454416

PLN 123.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. A1685400830

Mercedes A W168 Petrol Engine Starter Alternator Electrical Cable A1685400830

PLN 123.95

Free delivery - Tue, Nov 25

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, Nov 25

If paid before 14:00

Part no. A1718701410

Mercedes SLK R171 Alarm Anti Theft System Control Module Unit Roof A1718701410

PLN 473.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. 7PP941572AB

Audi A4 B9 Volkswagen Tiguan 1T Headlight Ballast Control Module 7PP941572AB

PLN 237.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. 9857620

Door Wiring Mini F60 Cable Loom Rear Left Right N/O/S Harness 9857620

PLN 170.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. 9216286

BMW F20 F21 Socket Plug Wiring Loom Cable 9216286

PLN 42.95

Delivery - Tue, Nov 25

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, Nov 25

If paid before 14:00

Part no. 8482365

BMW G20 Installation Cable Wiring Loom 8482365

PLN 94.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. 7579136

BMW Mini Cooper S R56 Automatic Gearbox ECU Control Unit EGS Module 7579136

PLN 141.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. 8585379

ECU BMW F30 330d N57N 258HP Diesel Engine Control Unit Automatic 8585379

PLN 237.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. 2Q0980653H

Seat Ibiza KJ1 VW Polo MK6 Front Camera Lane Assist Control Unit 2Q0980653H

PLN 284.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. 8X0971365

Audi A1 8X Driver's Seat Cable Seat Belt Warning Wiring Loom Harness 8X0971365

PLN 189.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. A2229004213-1

Keyless Go Mercedes GLC X253 Keyless Entry Control Module A2229004213

PLN 80.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. 9371790

BMW 1 Series F20 Telematics Control Unit Module Bluetooth 9371790

PLN 189.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. A1729060005

Mercedes R172 Rear SAM Fuse Relay Box A1729060005

PLN 379.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. 3T1T-14301-AF

Ford Transit Connect Negative Battery Terminal Cable Wiring 3T1T-14301-AF

PLN 123.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. A2048207485

Mercedes W204 Front Door Control Unit Module Right O/S A2048207485

PLN 42.95

Delivery - Tue, Nov 25

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, Nov 25

If paid before 14:00

Part no. 918545-102

BMW F11 Wiring Cable Loom 918545-102 767832-113

PLN 85.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. A2469003114

Transmission Module Mercedes W176 W246 Control Unit ECU A2469003114

PLN 85.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. A2533402600

Mercedes X253 Hybrid GLC Battery Electrical Wiring Harness A2533402600

PLN 94.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. 8506438-1

BMW E81 E87 LCI E90 E91 120d 320d N47 177HP ECU KIT DDE 8506438 CAS 3 Key

PLN 655.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. 8Y0035465

Audi A3 8Y A4 B9 Q5 FY Harman Speaker Amplifier Booster Sound System 8Y0035465

PLN 237.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. 4G8971365

Audi A7 4G Seat Cable Front Left Right N/O/S Wiring Loom Harness 4G8971365

PLN 94.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. A6395400150

Mercedes Vito W639 Battery Terminal Fuse Box Control Unit Module A6395400150

PLN 56.95

Delivery - Tue, Nov 25

If paid before 14:00

Part no. 7928648

BMW G30 LCI Radio Remote Control Receiver Module ECU Unit 434 Mhz 7928648

PLN 94.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. A9069820109-1

Mercedes W907 Positive Battery Terminal Cover Cap Trim Red A9069820109

PLN 42.95

Delivery - Tue, Nov 25

If paid before 14:00

Part no. 6862756

BMW F20 F21 F22 F30 F31 ECU ICM Plus Control Unit Module 6862756

PLN 85.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. 8267408

BMW E46 E64 Front Seat Backrest Adjustment Drive Right O/S 8267408

PLN 94.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. 7638477

Ignition Coil BMW E81 E87N LCI E90 E91 E92 F10 F11 Bosch 7638477

PLN 42.95

Delivery - Tue, Nov 25

If paid before 14:00

Part no. A2076822704

Trim Panel Mercedes W212 Dashboard Module Control Unit Cover A2076822704

PLN 47.95

Delivery - Tue, Nov 25

If paid before 14:00

Part no. 8704090

BMW F20 F21 F30 Mini F55 F56 HSD Cable HU CID Wiring Cable 8704090

PLN 94.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. 9226881

BMW 1 Series F20 F20N F21 F21N LCI Radio Aerial Antenna Amplifier AM/FM 9226881

PLN 42.95

Delivery - Tue, Nov 25

If paid before 14:00

Part no. A2049001206

Mercedes W204 Coupe Door Module Front Left N/S Control Unit A2049001206

PLN 55.95

Delivery - Tue, Nov 25

If paid before 14:00

Part no. 4H0035061J

Audi A8L 4H Head Unit Radio CD Player Navigation GPS 4H0035061J

PLN 1,329.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. A1775401629-1

Mercedes W177 Rear Bumper PDC Wiring Loom Parking Sensor A1775401629

PLN 94.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. A1779003806

Door Module Mercedes C118 W177 W247 Front Left N/S Control Unit A1779003806

PLN 123.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. 8639582-2

BMW F20 M135i F22 M235i F30 335i N55 Engine Unit ECU DME 8639582 Manual

PLN 1,614.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. A1649100075-1

Mercedes ML W164 Lumbar Module Front Seat Lumbar Control Unit A1649100075

PLN 237.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. A2118200885

Mercedes E-Class W211 S211 Bluetooth Control Unit Module ECU A2118200885

PLN 47.95

Delivery - Tue, Nov 25

If paid before 14:00

Part no. A1569057900

Mercedes W176 Aerial Antenna Amplifier A1569057900

PLN 37.95

Delivery - Tue, Nov 25

If paid before 14:00

Part no. 8574102

BMW F20 F21 F30 F31 F32 Starter Motor Engine Actuator N47N Diesel 8574102

PLN 42.95

Delivery - Tue, Nov 25

If paid before 14:00

Part no. 9276096

BMW 5 6 7 Series F01 F10 F13 Antenna Aeral Amplifier Diversity 868 MHZ 9276096

PLN 70.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. 98661819900

Porsche Boxster 986 Sunroof Control Relay Module 98661819900

PLN 284.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. 6970701-1

BMW 3 Series E93 E93N LCI 1 Rear Bumper Antenna Aerial Telephone 6970701

PLN 94.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. 6928376

BMW 5 6 Series E60 E61 LCI E63 E64 Cable Wiring Set ARS Valve Block 6928376

PLN 113.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. 04L907309A-1

Audi A3 8V 2.0 TDI CRLB 150HP Engine ECU Kit Ignition + 2 Keys 04L907309A Manual

PLN 1,139.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. 9117831

Negative Battery Lead BMW F45 F46 X1 F48 IBS Minus Pole Cable 9117831

PLN 61.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. 8E0959651A

Audi A4 B7 Front Crash Impact Air Module Sensor Unit Module 8E0959651A

PLN 42.95

Delivery - Tue, Nov 25

If paid before 14:00

Part no. 7571142-1

Mini Cooper R55 R56 R57 Battery Cable Wiring Lead Power Positive 7571142

PLN 47.95

Delivery - Tue, Nov 25

If paid before 14:00

Part no. A0045423518

Mercedes ML W164 W204 W211 CLS C219 Acceleration Sensor Module Unit A0045423518

PLN 61.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. A2781506020

Cable Beam Mercedes W166 W212 W221 Engine Wiring Harness Loom A2781506020

PLN 94.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. 6820235

BMW F20 F30 Mini F55 F56 Control Unit Air Conditioning Module 6820235

PLN 61.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. H1BT18K811LF

Ford Transit Custom Mk1 Radio Head Unit Control Panel H1BT18K811LF

PLN 142.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. 7619143

BMW F20 F21 F30 F31 Valvetronic Servomodule Wiring Cable Loom Harness 7619143

PLN 94.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. 8512047-7

BMW E90 E91 LCI N47N 320d 163HP ECU Module KIT DDE 8512047 Automatic

PLN 759.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. 9177773

BMW F01 F07 F10 F11 Battery Power B+ Distribution Box Rear 9177773

PLN 94.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. A2049060205-3

Mercedes W204 Rear SAM Module Fuse Box Relay Control Unit A2049060205

PLN 189.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. 06H911024C

Audi A5 F5 45 TFSI QUATTRO Starter Motor Engine Denso 06H911024C

PLN 66.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. A1718600205

Mercedes R171 Passenger Seat Air Module Control Unit Module A1718600205

PLN 189.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. A9069006503

Door Module Mercedes W906 Front Left Right N/O/S Control Unit ECU A9069006503

PLN 94.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. 8X0907159B

Audi A1 8X Fuel Pump Module Control Unit ECU 8X0907159B

PLN 113.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. 8K0907637A

Audi A5 8T Acceleration Yaw Rate Sensor Module Control Unit ECU 8K0907637A

PLN 42.95

Delivery - Tue, Nov 25

If paid before 14:00

Part no. 9243637

BMW X3 F25 Rear Bumper PDC Wiring Loom Parking Sensor Cable Harness 9243637

PLN 189.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. A4475406453

Battery Cable Mercedes Vito W447 Diesel OM651 Alternator Wiring A4475406453

PLN 94.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. 9270020

BMW F06 F12 F13 Front Wiring Loom PDC Harness Parking Sensor 9270020

PLN 332.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. 7600076-2

Mini Cooper R55 R56 N12 1.6 120HP ECU Kit DME 7600076 + CAS3 + Key Manual

PLN 522.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. 9273630

BMW F13 Footwell Light Module Control Unit ECU FRM3 9273630

PLN 142.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. 7848603

Alternator BMW F87 M2 F80 M3 F82 F83 M4 S55 Engine Generator 250A Denso 7848603

PLN 474.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. A2078201989

Mercedes-Benz W207 A207 Radio Aerial Antenna Amplifier Module Unit A2078201989

PLN 94.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. A2059005713

Door Module Mercedes W205 Front Left N/S Door Control Module Unit A2059005713

PLN 56.95

Delivery - Tue, Nov 25

If paid before 14:00

Part no. A9075450100

Fuse Box Mercedes Sprinter W907 W910 Relay Box Fuse Box Module A9075450100

PLN 189.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. 6978374

Air Module Unit BMW E60 E61 Sensor Control ECU 6978374

PLN 42.95

Delivery - Tue, Nov 25

If paid before 14:00

Part no. 9315684

BMW F20 F21 F30 F31 F32 Body Control Comfort Module Unit FEM ECU LR01 9315684

PLN 379.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. P0396890

BMW 1 Series E82 Rear Bumper PDC Cables Wiring Loom Set 0396890

PLN 189.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. 04L907309AB-1

Audi Q3 8U 2.0 TDI DFTA 150HP Quattro Engine ECU Kit Ignition + Key 04L907309AB

PLN 664.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. A2044404732

Mercedes W204 Estate PDC Wiring Rear Bumper Parking Sensor Cable A2044404732

PLN 94.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. 6964141

BMW 7 Series E65 E66 E67 Control Unit Module Door Front Driver Side 6964141

PLN 94.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. A2135402870

Ground Cable Mercedes C238 Fuse Box Wire Prefuse Box Wiring A2135402870

PLN 141.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. 5Q0971250P

Audi S3 8V Battery Wire Cable Negative Earth Lead 95Q0971250P

PLN 42.95

Delivery - Tue, Nov 25

If paid before 14:00

Part no. 9874189

BMW 1 3 Series F20 F30 MINI F56 Control Unit Air Conditioning Module 9284440

PLN 85.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. 8654635

Mini Cooper S F55 F56 Petrol Positive Battery Alternator Starter Cable 8654635

PLN 61.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. 9240508

Fuse Map BMW X5 X6 E70 E71 Assignment Grouping Card 9240508

PLN 42.95

Delivery - Tue, Nov 25

If paid before 14:00

Part no. A2205401124-1

Fuse Box Unit Mercedes CL S C215 W220 1 Front Right O/S ECU A2205401124

PLN 61.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. A0025428819

Mercedes W176 W246 Relay Current 4 Pin 12V Hella A0025428819

PLN 37.95

Delivery - Tue, Nov 25

If paid before 14:00

Part no. 9223689

BMW X1 E84 Display Screen Monitor On-board CID TV Navigation System 8,8" 9223689

PLN 1,139.95

Free delivery - Tue, Nov 25

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, Nov 25

If paid before 14:00

Part no. 7570287

BMW Mini Cooper One R55 R56 R57 Earth Ground Battery Strap Cable 7570287

PLN 42.95

Delivery - Tue, Nov 25

If paid before 14:00

Part no. 8Y0035465A

Audi Q2 GA Harman Speaker Amplifier Booster Sound System 8Y0035465A

PLN 617.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. 7848469

BMW F80 M3 F82 F83 M4 Wiring Harness Engine Gearbox Module 7848469

PLN 427.95

Free delivery - Tue, Nov 25

If paid before 14:00

Part no. 8514032

BMW X3 F25 X4 F26 Diesel B47 Alternator Starter Wiring Holder Cover 8514032

PLN 42.95

Delivery - Tue, Nov 25

If paid before 14:00

Part no. A2078202910

Seat Control Module Mercedes A207 W207 Cabrio Rear Control Unit ECU A2078202910

PLN 56.95

Delivery - Tue, Nov 25

If paid before 14:00

Part no. 8K0959795F

Audi Q5 8R Rear Door Control Module Unit ECU Left Right N/O/S 8K0959795F

PLN 42.95

Delivery - Tue, Nov 25

If paid before 14:00

Part no. 6934648

BMW X5 E70 E91 LCI Touring Tailgate Trap Circuit Aerial Amplifier 6934648

PLN 85.95

Free delivery - Tue, Nov 25

If paid before 14:00

...

Showing 3763-3861 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 .

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