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. A6229001000

Mercedes W447 114CDI OM622.851 136HP Engine Control Unit Manual A6229001000

€393.95

Free delivery - Wed, Dec 24

If paid before 14:00

Part no. A1695451440

Mercedes W169 W245 Central Gateway Module Bracket Holder Mount A1695451440

€23.95

Free delivery - Wed, Dec 24

If paid before 14:00

Part no. 0148459-BRG

Mini Cooper One R50 Fuel Filler Cover Flap British Racing Green A67 0148459

€23.95

Free delivery - Wed, Dec 24

If paid before 14:00

Part no. A2215450801-1

Mercedes W221 Fuse Box Control Unit SAM Module Relay A2215450801

€227.95

Free delivery - Wed, Dec 24

If paid before 14:00

Part no. 7634058

BMW F20 F30 Engine Automatic Gearbox Module Wiring Cable Loom Harness 7634058

€42.95

Free delivery - Wed, Dec 24

If paid before 14:00

Part no. 8589170

Starter Harness BMW X3 G01 X4 G02 30dX 40dX B57 Cable Base B+ Loom 8589170

€61.95

Free delivery - Wed, Dec 24

If paid before 14:00

Part no. 9226888

BMW 1 Series F20 F21 Antenna Aerial Noise Suppression Filter 9226888

€23.95

Free delivery - Wed, Dec 24

If paid before 14:00

Part no. 6921980

BMW 7 Series E65 E66 Control Unit Door Rear Passenger Side

€23.95

Free delivery - Wed, Dec 24

If paid before 14:00

Part no. 9225182

Rear Bumper Antenna BMW E93 E93N LCI Aerial Telephone 6970701

€28.95

Free delivery - Wed, Dec 24

If paid before 14:00

Part no. 8519663-14

Mini Cooper D R56 LCI R60 N47N 112HP Diesel Engine Unit ECU DDE 8519663 Manual

€56.95

Free delivery - Wed, Dec 24

If paid before 14:00

Part no. A2128201789

Mercedes W212 Antenna Amplifier Aerial Module C Pillar Left N/S A2128201789

€23.95

Free delivery - Wed, Dec 24

If paid before 14:00

Part no. A2048701126

Mercedes S204 Door Module Rear Left N/S Control Unit ECU A2048701126

€32.95

Free delivery - Wed, Dec 24

If paid before 14:00

Part no. A2059009643

Mercedes W205 Telematics Bluetooth Module Control Unit ECU A2059009643

€61.95

Free delivery - Wed, Dec 24

If paid before 14:00

Part no. 4G2971228DQ

Audi A6 A7 4G 3.0 TDI Starter Alternator Wiring Harness 4G2971228DQ

€28.95

Free delivery - Wed, Dec 24

If paid before 14:00

Part no. A1729060105

Mercedes SLK R172 Rear Fuse Box SAM Relay Control Unit Module A1729060105

€89.95

Free delivery - Wed, Dec 24

If paid before 14:00

Part no. 6866990

Airbag Module BMW F01 F02 LCI F10 F11 F13 Air Bag ECU ICM Control Unit 6866990

€56.95

Free delivery - Wed, Dec 24

If paid before 14:00

Part no. A2389009000

Air Module Mercedes A205 A238 A217 SRS Protection Control Unit A2389009000

€113.95

Free delivery - Wed, Dec 24

If paid before 14:00

Part no. 8385164-2

BMW 7 Series 2 E65 E66 Battery B Engine Compartment Terminal Point 8385164

€23.95

Free delivery - Wed, Dec 24

If paid before 14:00

Part no. A2049009004

Parking Module Mercedes W204 S204 PDC Distance Control Unit Sensor A2049009004

€23.95

Free delivery - Wed, Dec 24

If paid before 14:00

Part no. 03L906022FL

Audi A6 C6 3.0 TDI 233HP Diesel Engine Control Unit ECU Kit Module 03L906022FL

€189.95

Free delivery - Wed, Dec 24

If paid before 14:00

Part no. 8K0907064CC

Audi A4 B8 Body Control Comfort Unit Module BCM Unit ECU 8K0907064CC

€23.95

Free delivery - Wed, Dec 24

If paid before 14:00

Part no. A2218705687

Mercedes W221 Linguatronic Control Module Unit ECU English Version A2218705687

€85.95

Free delivery - Wed, Dec 24

If paid before 14:00

Part no. 5WA907007AC

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

€113.95

Free delivery - Wed, Dec 24

If paid before 14:00

Part no. A2034404532

Mercedes CLC-Class CL203 Rear Parking Sensor Wiring Loom Cable PDC A2034404532

€23.95

Free delivery - Wed, Dec 24

If paid before 14:00

Part no. E92-PDC-WIRING-LOOM-HARNESS-REAR-BUMPER-2

BMW E92 E92N LCI PDC Wiring Loom Harness Rear Bumper

€23.95

Free delivery - Wed, Dec 24

If paid before 14:00

Part no. A1645400641

Mercedes-Benz M-Class W164 Battery Ground Earth Strap Cable Wiring A1645400641

€28.95

Free delivery - Wed, Dec 24

If paid before 14:00

Part no. 6921979

Door Module BMW E65 E66 E67 Front Door Control Unit Passenger Side 6921979

€23.95

Free delivery - Wed, Dec 24

If paid before 14:00

Part no. 5K0962132B

Seat Ibiza V KJ1 Keyless Entry Amplifier Aerial Antenna Module Inner 5K0962132B

€23.95

Free delivery - Wed, Dec 24

If paid before 14:00

Part no. 8580061

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

€23.95

Free delivery - Wed, Dec 24

If paid before 14:00

Part no. 6906347-1

BMW X5 E53 Rear Bumper PDC Plug Socket Loom Cable 6906347

€23.95

Free delivery - Wed, Dec 24

If paid before 14:00

Part no. A2135401217

Mercedes W213 OM642 Diesel Engine Alternator Wiring Loom Harness A2135401217

€47.95

Free delivery - Wed, Dec 24

If paid before 14:00

Part no. 8576341-1

BMW F20 F30 F31 116d 316d 116HP N47N Engine ECU Control Unit DDE 8576341 Manual

€61.95

Free delivery - Wed, Dec 24

If paid before 14:00

Part no. 1722094

Battery Cable BMW E36 E46 M43 M57 Starter Alternator Wiring Harness 1722094

€28.95

Free delivery - Wed, Dec 24

If paid before 14:00

Part no. 9298961

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

€23.95

Free delivery - Wed, Dec 24

If paid before 14:00

Part no. 9270495-1

BMW X5 E70 X6 E71 F10 F11 F12 Parking Sensor PDC Ultrasonic Black 9251944 SET X4

€37.95

Free delivery - Wed, Dec 24

If paid before 14:00

Part no. A9075400500

Mercedes W907 Battery Cable Wiring Loom Harness Cabling A9075400500

€75.95

Free delivery - Wed, Dec 24

If paid before 14:00

Part no. 8507918

BMW F20 F21 N47S1 Engine Wiring Harness Injector Module Loom Cable 8507918

€104.95

Free delivery - Wed, Dec 24

If paid before 14:00

Part no. A6549061600

Starter Motor Mercedes W205 W213 W238 W447 OM654 Engine Diesel A6549061600

€47.95

Free delivery - Wed, Dec 24

If paid before 14:00

Part no. 2Q0915181B

Seat Ibiza Mk5 Negative Battery Terminal Cable Lead 2Q0915181B

€23.95

Free delivery - Wed, Dec 24

If paid before 14:00

Part no. GK3T-14A120-AC

Ford Transit Positive Battery Lead Harness Wiring Cable Loom GK3T-14A120-AC

€51.95

Free delivery - Wed, Dec 24

If paid before 14:00

Part no. 6966551

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

€37.95

Free delivery - Wed, Dec 24

If paid before 14:00

Part no. 6935597-2

4 x BMW 1 3 E81 E87 E90 E91 PDC Set Parking Sensor Front Rear Titansilber Silver

€28.95

Free delivery - Wed, Dec 24

If paid before 14:00

Part no. 6788716

BMW 7 Series E65 E66 E67 Steering Column Control Unit CIM Module

€23.95

Free delivery - Wed, Dec 24

If paid before 14:00

Part no. PEO118811

Mazda 6 GJ Relay 4-Pin Electrical Unit Multi-Purpose Relay Black ACVN51212

€23.95

Free delivery - Wed, Dec 24

If paid before 14:00

Part no. 9110878

BMW E81 E87 E91 Switch Cluster Steering Column Cruise Control 9110878

€180.95

Free delivery - Wed, Dec 24

If paid before 14:00

Part no. A4159064900-1

Mercedes Citan W415 Alternator Generator OM607 Diesel Engine 150A 14V 231000026R

€56.95

Free delivery - Wed, Dec 24

If paid before 14:00

Part no. 7559811

Earth Ground Cable BMW E60 E61 E63 N62N 540i 550i 650i Battery Starter Wiring

€23.95

Free delivery - Wed, Dec 24

If paid before 14:00

Part no. A1775403131

Mercedes w177 Sensor Wiring Harness Cable Front A1775403131

€28.95

Free delivery - Wed, Dec 24

If paid before 14:00

Part no. 1K2941824

VW Golf 5 V 1K Fuse Box Control Unit Relay Power Distribution Module 1K2941824

€28.95

Free delivery - Wed, Dec 24

If paid before 14:00

Part no. 4H0955557A

Porsche Macan 95B Front Crash Impact Sensor Air Module Control Unit 4H0955557A

€23.95

Free delivery - Wed, Dec 24

If paid before 14:00

Part no. 6948692

BMW E60 E61 E63 Passenger Side Door Airbag Control Module 6948692

€23.95

Free delivery - Wed, Dec 24

If paid before 14:00

Part no. A1718204326

Mercedes SLK R171 Front Air Module SRS Control Unit ECU A1718204326

€332.95

Free delivery - Wed, Dec 24

If paid before 14:00

Part no. 1K0971349CR

Skoda Octavia 1Z Audi A3 8P Alternator Wiring Harness Loom Cable 1K0971349CR

€56.95

Free delivery - Wed, Dec 24

If paid before 14:00

Part no. 8518268

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

€66.95

Free delivery - Wed, Dec 24

If paid before 14:00

Part no. 9177118

CD Changer BMW X5 E70 X6 E71 Mini R55 R56 R57 6 Disc Changer Unit 9177118

€37.95

Free delivery - Wed, Dec 24

If paid before 14:00

Part no. 2371741

Mini F55 F56 Battery Cable Positive Battery Alternator Starter Wiring 2371741

€23.95

Free delivery - Wed, Dec 24

If paid before 14:00

Part no. 9281722

BMW E93 Cabrio Convertible Folding Top Roof ECU Module CTM 9281722

€23.95

Free delivery - Wed, Dec 24

If paid before 14:00

Part no. 9374508

BMW F20 F21 F30 F31 REM Rear Electronic Module Fuse Box Control Unit V3 9374508

€23.95

Free delivery - Wed, Dec 24

If paid before 14:00

Mercedes W205 W213 C238 C253 Relay Fuse Box Top Cover Lid Cap A2055400182

-5%

Part no. A2055400182

Mercedes W205 W213 C238 C253 Relay Fuse Box Top Cover Lid Cap A2055400182

Promo price

€23.95

€22.75

Free delivery - Wed, Dec 24

If paid before 14:00

Part no. A1645400762

Mercedes W164 W211 C219 Tyre Pressure Monitor Control Unit Module A1645400762

€28.95

Free delivery - Wed, Dec 24

If paid before 14:00

Part no. A6429000500

Mercedes W204 C320 CDI OM.652.960 Engine Control Unit ECU A6429000500 Automatic

€85.95

Free delivery - Wed, Dec 24

If paid before 14:00

Mercedes W221 Dashboard Instrument Cluster Panel Switch A2218202910

-5%

Part no. A2218202910

Mercedes W221 Dashboard Instrument Cluster Panel Switch A2218202910

Promo price

€23.95

€22.75

Free delivery - Wed, Dec 24

If paid before 14:00

Part no. 8585729

BMW 3 Series F30 320d N47N Engine Gearbox Module Wiring Loom Harness Cables Set

€56.95

Free delivery - Wed, Dec 24

If paid before 14:00

Part no. 8589168

Alternator Harness BMW X3 G01 X4 G02 30dX 40dX B57 Cable Base B+ Loom 8589168

€56.95

Free delivery - Wed, Dec 24

If paid before 14:00

Part no. 9359248

BMW MINI Cooper One F55 Cable Harness Door Right O/S Loom Driver Side 9359246

€23.95

Free delivery - Wed, Dec 24

If paid before 14:00

Mercedes W221 Brake Pad Wear Indicator Sensor Front Left Right N/O/S A2215400205

-5%

Part no. A2215400205

Mercedes W221 Brake Pad Wear Indicator Sensor Front Left Right N/O/S A2215400205

Promo price

€23.95

€22.75

Free delivery - Wed, Dec 24

If paid before 14:00

Part no. 9364818

BMW Z4 E89 ECU Body Control Module Junction Box H2 PL2RR JBBFE IIIR 9364818

€218.95

Free delivery - Wed, Dec 24

If paid before 14:00

Part no. 9662854180

Citroen C4 Starter Motor Diesel Engine 1.6 HDI Actuator Unit 9662854180

€56.95

Free delivery - Wed, Dec 24

If paid before 14:00

Part no. A2038219751

Mercedes C-Class W203 Roof Alarm Motion Sensor Cover Trim Grey A2038219751

€23.95

Free delivery - Wed, Dec 24

If paid before 14:00

Part no. 7948147

BMW F40 F44 Rear Seat Bench Occupancy Mat Control Unit Sensor 7948147

€23.95

Free delivery - Wed, Dec 24

If paid before 14:00

Part no. 3Q0907530BF

VW Polo Mk6 Seat Ibiza Mk5 Central Gateway Control Unit Relay ECU 3Q0907530BF

€85.95

Free delivery - Wed, Dec 24

If paid before 14:00

Part no. 7H0919506D

VW Transporter T5 Engine Cooling Radiator Fan Control Unit Module 7H0919506D

€51.95

Free delivery - Wed, Dec 24

If paid before 14:00

Part no. 5QA919283B

Skoda Octavia 5E III Park Parking Assist PDC Distance Control Module 5QA919283B

€23.95

Free delivery - Wed, Dec 24

If paid before 14:00

Part no. 9286640

Mini Navigation Head Unit R55 R56 R57 LCI R60 R61 CHAMP 2 Sat Nav DAB 9286640

€237.95

Free delivery - Wed, Dec 24

If paid before 14:00

Part no. 9119058

BMW E81 E87 E90 E91 Airbag Control Unit ECU NO CRASH DATA 9119058

€23.95

Free delivery - Wed, Dec 24

If paid before 14:00

Part no. A2139002422

Mercedes W213 Front Door Module Control Module Unit Right O/S A2139002422

€85.95

Free delivery - Wed, Dec 24

If paid before 14:00

Part no. 8573260-1

BMW F20 F21 116d ed Diesel N47N 116HP Engine Control ECU DDE 8573260 Manual

€71.95

Free delivery - Wed, Dec 24

If paid before 14:00

Battery Cover Mercedes W205 W212 Battery Positive Pole Cover Red A0005468502

-5%

Part no. A0005468502

Battery Cover Mercedes W205 W212 Battery Positive Pole Cover Red A0005468502

Promo price

€23.95

€22.75

Free delivery - Wed, Dec 24

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Audi A3 8V Door Control Module Unit ECU Rear Left Right N/O/S 5Q0959595E

-5%

Part no. 5Q0959595E

Audi A3 8V Door Control Module Unit ECU Rear Left Right N/O/S 5Q0959595E

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€23.95

€22.75

Free delivery - Wed, Dec 24

If paid before 14:00

Part no. A1698702210

Mercedes-Benz A B W169 W245 Tow Protection Switch Button Control Unit Module

€23.95

Free delivery - Wed, Dec 24

If paid before 14:00

Part no. 1K0907530G

Audi A3 8P Gateway Module Diagnostic Interface Control Unit ECU 1K0907530G

€23.95

Free delivery - Wed, Dec 24

If paid before 14:00

Mercedes W176 Door Harness Loom Cable Wiring Front Left Right N/O/S A2465402705

-5%

Part no. A2465402705

Mercedes W176 Door Harness Loom Cable Wiring Front Left Right N/O/S A2465402705

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€23.95

€22.75

Free delivery - Wed, Dec 24

If paid before 14:00

Part no. 9171900

BMW X5 E70 X6 E71 Computer Control Unit DVD Player RSE MID PLUS PL4 9171900

€360.95

Free delivery - Wed, Dec 24

If paid before 14:00

Mercedes W211 Door Module Rear Right O/S Control Unit ECU A2118703285

-5%

Part no. A2118703285

Mercedes W211 Door Module Rear Right O/S Control Unit ECU A2118703285

Promo price

€23.95

€22.75

Free delivery - Wed, Dec 24

If paid before 14:00

Part no. A0005454516

Mercedes W204 Automatic Gearbox EGS Control Module Unit ECU A0005454516

€31.95

Free delivery - Wed, Dec 24

If paid before 14:00

Part no. 9229989

BMW F07 GT Cable Loom Door Rear Left Right N/O/S Wiring Harness 9210135

€23.95

Free delivery - Wed, Dec 24

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Part no. A2105400230

Mercedes-Benz E-Class W210 Battery Positive Plus Cable Loom Harness A2105400230

€23.95

Free delivery - Wed, Dec 24

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Part no. 7558911

BMW 1 Series E81 E82 E87N E88 NOx Cable Wiring Petrol 7558911 12517558911

€23.95

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Part no. 9368387

BMW F07 F10 F11 X6 F16 Rear Cabin Entertainment Audio CD DVD Player 9368387

€222.95

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Part no. A2125407605

Door Wiring Mercedes W212 Loom Cable Rear Left Right N/O/S A2125407605

€23.95

Free delivery - Wed, Dec 24

If paid before 14:00

Part no. 9381581

BMW i3 I01 IBS Cable Negative Battery Lead Wiring Harness Control Unit 9381581

€42.95

Free delivery - Wed, Dec 24

If paid before 14:00

Part no. 3Q0907338

Audi S3 8V Front Headlight Lamp Range Control Module ECU 3Q0907338

€23.95

Free delivery - Wed, Dec 24

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BMW E39 Battery Clamp Fuse Cable Positive 1744987

-5%

Part no. 1744987

BMW E39 Battery Clamp Fuse Cable Positive 1744987

Promo price

€23.95

€22.75

Free delivery - Wed, Dec 24

If paid before 14:00

Part no. A2059003740

Mercedes A205 Convertible Comfort Control Unit Module A2059003740

€85.95

Free delivery - Wed, Dec 24

If paid before 14:00

Part no. 7624621

BMW X1 F84 Starter Wiring Battery Alternator Cable Harness Loom 7624621

€32.95

Free delivery - Wed, Dec 24

If paid before 14:00

BMW X6 F16 Fuse Relay Box Control Unit Power Distribution 9360371

-5%

Part no. 9360371

BMW X6 F16 Fuse Relay Box Control Unit Power Distribution 9360371

Promo price

€23.95

€22.75

Free delivery - Wed, Dec 24

If paid before 14:00

Part no. 8634246

Mini F54 F60 B42 B46 B48 Ignition Injection Valve Wiring Harness Loom 8634246

€47.95

Free delivery - Wed, Dec 24

If paid before 14:00

Part no. A2129008816

Mercedes X218 Radio Comand Navigation Seat Control Unit Module A2129008816

€256.95

Free delivery - Wed, Dec 24

If paid before 14:00

Part no. 9389310

BMW F45 Door Wiring Front Driver's Door Loom Cable Wiring Harness 9389310

€23.95

Free delivery - Wed, Dec 24

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...

Showing 1981-2079 of 12041 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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