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. 9361589

BMW 2 F45 Active Tourer Door Wiring Loom Harness Cable Driver's Side 9361600

€32.95

Free delivery - Tue, Dec 23

If paid before 14:00

Part no. 8489325

BMW i3 I01 94Ah Rex Hybrid Basic Control Unit Module ECU 8489325

€51.95

Free delivery - Tue, Dec 23

If paid before 14:00

Part no. 7549393

Negative Cable BMW E81 X1 E84 E87 E90 E91 E92 E93 Ground Earth Battery 7549393

€23.95

Free delivery - Tue, Dec 23

If paid before 14:00

Part no. 6956672

BMW E63 E63N LCI Centre Console Switch Centre DTC PDC 6956672

€23.95

Free delivery - Tue, Dec 23

If paid before 14:00

Part no. 6932644

BMW 3 5 Series E60 E71 E90 E92 Suppression Filter Aerial Module Antenna 6932644

€23.95

Free delivery - Tue, Dec 23

If paid before 14:00

Part no. 7951069

KaFAS Camera BMW F45 Front Camera Control Unit Module 9384688

€28.95

Free delivery - Tue, Dec 23

If paid before 14:00

VW Volkswagen New Beetle Alarm Motion Detector Sensor Module Unit 1Y0951177

-5%

Part no. 1Y0951177

VW Volkswagen New Beetle Alarm Motion Detector Sensor Module Unit 1Y0951177

Promo price

€23.95

€22.75

Free delivery - Tue, Dec 23

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Part no. 6970676

BMW X5 E70 Rear Bumper PDC Cables Wiring Loom Set 6970676

€56.95

Free delivery - Tue, Dec 23

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Part no. 8W0947355M

Audi A4 B9 LED Module Light Unit Wiring Harness Right Rear O/S 8W0947355M

€23.95

Free delivery - Tue, Dec 23

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Part no. 1K0937517-1

Audi A3 RS3 8V Potential Power Distribution Junction Box Jump Point 1K0937517

€23.95

Free delivery - Tue, Dec 23

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Part no. 8P0862335S

Audi S3 8P Interface Bluetooth Control Module Harman Becker ECU 8P0862335S

€23.95

Free delivery - Tue, Dec 23

If paid before 14:00

Part no. 8518568

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

€37.95

Free delivery - Tue, Dec 23

If paid before 14:00

Part no. 6832062

BMW F10 F13 X3 F25 Wireless Charger Centre Console Phone Charging Module 6832062

€75.95

Free delivery - Tue, Dec 23

If paid before 14:00

Part no. A2139002210

Mercedes-Benz W176 W205 W207 W213 Bluetooth Control Unit Module ECU A2139002210

€23.95

Free delivery - Tue, Dec 23

If paid before 14:00

Part no. 9365819

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

€28.95

Free delivery - Tue, Dec 23

If paid before 14:00

Part no. rhd-A1185407902

Mercedes C118 Front Door Left Right N/O/S Electrical Wiring Harness A1185407902

€28.95

Free delivery - Tue, Dec 23

If paid before 14:00

Part no. A2059007134

Mercedes C205 Sam Control Module Body Comfort ECU A2059007134

€47.95

Free delivery - Tue, Dec 23

If paid before 14:00

Part no. 8573260-8

BMW F20 F21 116d ed Diesel N47N 116HP ECU Kit DDE 8573260 + Key + FEM Manual

€417.95

Free delivery - Tue, Dec 23

If paid before 14:00

Part no. A2661503033

Mercedes W169 W245 M266 Petrol Engine Wiring Harness Loom A2661503033

€47.95

Free delivery - Tue, Dec 23

If paid before 14:00

Part no. 6948182

BMW E60 E61 LCI Alarm System Unit Ultra Sonic Module

€23.95

Free delivery - Tue, Dec 23

If paid before 14:00

Part no. 8379567

BMW X5 Series E53 Loudspeaker Stereo Left Front Door N/S 8379567

€23.95

Free delivery - Tue, Dec 23

If paid before 14:00

Part no. 7614585

Power Supply Module BMW F20 F21 F30 F31 i3 I01 Integrated Relay 7614585

€23.95

Free delivery - Tue, Dec 23

If paid before 14:00

Part no. A1775401758

Mercedes W118 W177 W247 Starter Alternator Wiring Loom Harness Cable A1775401758

€80.95

Free delivery - Tue, Dec 23

If paid before 14:00

Part no. 9132254

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

€199.95

Free delivery - Tue, Dec 23

If paid before 14:00

Part no. 8590045

BMW G20 G21 G01 G02 B47B B47D Engine Injector Module Wiring Harness 8590045

€37.95

Free delivery - Tue, Dec 23

If paid before 14:00

Part no. A1648202715

Electrical Wiring Cable Mercedes W164 W251 Radio Media Interface A1648202715

€28.95

Free delivery - Tue, Dec 23

If paid before 14:00

Part no. 3C0919275S-CGR

Audi TT 8J PDC Parking Distance Sensor Control Condor Grey - Y7E 3C0919275S

€23.95

Free delivery - Tue, Dec 23

If paid before 14:00

Part no. A2465452840

Mercedes-Benz A B W176 W246 Control Module Housing Bracket Mount A2465452840

€23.95

Free delivery - Tue, Dec 23

If paid before 14:00

Part no. A2125403005

Mercedes W212 M271 Wiring Battery Alternator Starter Harness Cable A2125403005

€113.95

Free delivery - Tue, Dec 23

If paid before 14:00

Part no. A2134400200

Mercedes GLC 300e X253 Electric Drive Ground Earth Line Wire A2134400200

€28.95

Free delivery - Tue, Dec 23

If paid before 14:00

Part no. 3456625

Mini R56 MMI Multimedia Switch Button Panel Radio Reader Boost CD Player 3456625

€332.95

Free delivery - Tue, Dec 23

If paid before 14:00

Part no. 03L906018JR-1

Audi A4 B8 2.0 TDI CJCB Engine Control Unit Module ECU Kit 03L906018JR Manual

€284.95

Free delivery - Tue, Dec 23

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Part no. 8624382

BMW 1 3 Series F20 F30 F31 LCI Line Cable Power Distribution Module 8624382

€23.95

Free delivery - Tue, Dec 23

If paid before 14:00

Part no. 2754241

Mini Cooper R55 R56 R57 R60 R61 Engine Computer Mount Support Bracket Holder

€23.95

Free delivery - Tue, Dec 23

If paid before 14:00

Part no. 5G6867657

Volkswagen Golf 5G Mk7 Rear Lamp Light Bulb Cover Left N/S 5G6867657

€23.95

Free delivery - Tue, Dec 23

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Part no. 9166542

BMW E92 HDD Navigation Reader System Module Unit ZB CE3 Navi JAPAN 9166542

€47.95

Free delivery - Tue, Dec 23

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Part no. 9141446

BMW E93 Cabrio Convertible Hydraulic Pump Power Supply Cable 9141446

€23.95

Free delivery - Tue, Dec 23

If paid before 14:00

Part no. A1679001520

Mercedes C118 W167 W177 W247 Ignition Control Module Unit ECU A1679001520

€132.95

Free delivery - Tue, Dec 23

If paid before 14:00

Part no. 8506281-5

BMW E87 E90 LCI 116d 316d Diesel N47 ECU KIT Engine DDE 8506281 CAS3 Key Manual

€94.95

Free delivery - Tue, Dec 23

If paid before 14:00

Audi A3 8V Antenna Amplifier Rear Right O/S 8V7035225B

-5%

Part no. 8V7035225B

Audi A3 8V Antenna Amplifier Rear Right O/S 8V7035225B

Promo price

€23.95

€22.75

Free delivery - Tue, Dec 23

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Part no. 4H0035446A

Audi A7 4G Antenna Signal Amplifier Control Unit ECU 4H0035446A

€23.95

Free delivery - Tue, Dec 23

If paid before 14:00

Part no. A0131541702

Alternator Mercedes W638 OM611 Engine Alternator Generator A0131541702

€85.95

Free delivery - Tue, Dec 23

If paid before 14:00

Part no. A9075407160

Mercedes W907 W910 Battery Electrical Wiring Harness Ground Line A9075407160

€28.95

Free delivery - Tue, Dec 23

If paid before 14:00

Volkswagen Skoda Seat Audi Seat Pressure Sensor Front Passenger Side 8S0963553D

-5%

Part no. 8S0963553D

Volkswagen Skoda Seat Audi Seat Pressure Sensor Front Passenger Side 8S0963553D

Promo price

€23.95

€22.75

Free delivery - Tue, Dec 23

If paid before 14:00

Part no. 9153418

BMW F10 F11 B Plus Distributor Front Battery Cable 9153418

€23.95

Free delivery - Tue, Dec 23

If paid before 14:00

Part no. 4H0971104J

Audi A8L 4H Rear Bumper PDC Parking Sensor Wiring Harness Loom Cable 4H0971104J

€32.95

Free delivery - Tue, Dec 23

If paid before 14:00

Part no. A0025428019

Relay Mercedes W176 W246 4-Pin Black Hella 12V A0025428019

€23.95

Free delivery - Tue, Dec 23

If paid before 14:00

Part no. A2049012704

Mercedes W204 ECU Control Unit Crash Impact Sensor Air Module A2049012704

€23.95

Free delivery - Tue, Dec 23

If paid before 14:00

Part no. 3WA959595A

Audi A3 RS3 8V Door Control Unit ECU Module Front Driver's Side 3WA959595A

€56.95

Free delivery - Tue, Dec 23

If paid before 14:00

Part no. 420919275-PHB1

Audi A5 8T Parking Distance PDC Rear Ultra Sonic Sensor Phantom Black - Z9Y

€23.95

Free delivery - Tue, Dec 23

If paid before 14:00

Part no. 079903805J

Audi A4 B6 B7 4.2 V8 FSI Alternator Bracket Mount Holder 079903805J

€51.95

Free delivery - Tue, Dec 23

If paid before 14:00

Part no. 8736682

BMW i3 I01 Body Domain Comfort Control Unit BDC Module ECU 8736682

€313.95

Free delivery - Tue, Dec 23

If paid before 14:00

Mercedes W203 Door Wiring Harness Front Left Right N/O/S Wiring Loom A2035409213

-5%

Part no. A2035409213

Mercedes W203 Door Wiring Harness Front Left Right N/O/S Wiring Loom A2035409213

Promo price

€27.95

€26.55

Free delivery - Tue, Dec 23

If paid before 14:00

Part no. 03L911021E

Audi A4 B8 Starter Motor Engine Motor Actuator Diesel Bosch 03L911021E

€75.95

Free delivery - Tue, Dec 23

If paid before 14:00

Part no. 914014H161

Hyundai H-1 Fuse Box Front Relay Engine Control Unit Module ECU 91401-4H161

€28.95

Free delivery - Tue, Dec 23

If paid before 14:00

Part no. 7514610

Injection Valve Wiring BMW E60 E61 E65 N62 N62N Ignition Loom Harness 7514610

€23.95

Free delivery - Tue, Dec 23

If paid before 14:00

Part no. 7542615

BMW 1 3 5 6 7 Z4 Series E87 E90 E60 E64 E65 E85 Power Distribution Box 7542615

€23.95

Free delivery - Tue, Dec 23

If paid before 14:00

Part no. 6920469

BMW E65 E66 E67 Sensor A-pillar Right Airbag 65776920469 6920469

€23.95

Free delivery - Tue, Dec 23

If paid before 14:00

Audi Q7 4L Door Control Unit Module ECU Passenger Side 4L0959792B

-5%

Part no. 4L0959792B

Audi Q7 4L Door Control Unit Module ECU Passenger Side 4L0959792B

Promo price

€23.95

€22.75

Free delivery - Tue, Dec 23

If paid before 14:00

Part no. 4L0907468B

Audi Q7 4L Gateway Module Central Control Unit 4L0907468B

€23.95

Free delivery - Tue, Dec 23

If paid before 14:00

Part no. 6925945

BMW 5 Series E60 E61 Rear Left Right Door N/O/S Wiring Cable Harness Loom

€23.95

Free delivery - Tue, Dec 23

If paid before 14:00

Part no. 9875929

BMW F20 F21 F22 F23 LCI DAB Navigation Head Control Unit Module Business 9875929

€170.95

Free delivery - Tue, Dec 23

If paid before 14:00

Part no. A0005455916

Mercedes W204 Automatic Gearbox Transmission Module Unit ECU A0005455916

€28.95

Free delivery - Tue, Dec 23

If paid before 14:00

Part no. 8K0907064C

Audi A4 B8 Body Control Comfort Unit Module BCM Unit ECU 8K0907064C

€23.95

Free delivery - Tue, Dec 23

If paid before 14:00

Part no. 06M907309H-1

Audi RS5 F5 2.9 TFSI DECA Quattro 450HP Engine Unit ECU Kit 06M907309H Automatic

€788.95

Free delivery - Tue, Dec 23

If paid before 14:00

Part no. 6834091

BMW F87 F80 F82 Audio Amplifier Harman Becker Active Sound Design System 6834091

€99.95

Free delivery - Tue, Dec 23

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Part no. MB3T-14B060-ABE-1

VW Volkswagen Amarok NF Engine Wiring Loom Harness Cable MB3T-14B060-ABE

€94.95

Free delivery - Tue, Dec 23

If paid before 14:00

Part no. 80A959655N

Audi Q5 FY Air Module Control Unit SRS System ECU 80A959655N

€208.95

Free delivery - Tue, Dec 23

If paid before 14:00

Part no. 9259467

Fuse Box BMW X3 F25 Power Distribution Control Unit Module Front 9259467

€23.95

Free delivery - Tue, Dec 23

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Part no. 9304728

PDC Wiring BMW X3 F25 Front Bumper Loom Cable Harness Parking Sensors 9304728

€89.95

Free delivery - Tue, Dec 23

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Part no. A2059008118

Telematics Module Mercedes W176 W205 W218 Communication Control Unit A2059008118

€23.95

Free delivery - Tue, Dec 23

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Part no. A2469064201

Antenna Amplifier Mercedes X117 W176 W205 Rear Aerial Module A2469064201

€32.95

Free delivery - Tue, Dec 23

If paid before 14:00

Part no. A6519007500-13

Mercedes W212 E250 CDI 651.924 204HP Engine Unit ECU Kit A6519007500 Key Lock

€313.95

Free delivery - Tue, Dec 23

If paid before 14:00

Part no. GK2T-11000-DB

Ford Transit Custom Engine Starter Motor 2.0 EcoBlue GK2T-11000-DB

€94.95

Free delivery - Tue, Dec 23

If paid before 14:00

Part no. 7641659

Engine Wiring BMW F10 F20 F30 N20 125i 328i 528i N20 Harness Module 7641659

€99.95

Free delivery - Tue, Dec 23

If paid before 14:00

Part no. 7615308

BMW F20 F21 F30 Petrol N13 Wiring Loom Harness Engine Gearbox Manual 7615308

€23.95

Free delivery - Tue, Dec 23

If paid before 14:00

Crash Sensor Mercedes ML W164 W221 Front Rear Impact Airbag Unit A0038208426

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Part no. A0038208426

Crash Sensor Mercedes ML W164 W221 Front Rear Impact Airbag Unit A0038208426

Promo price

€23.95

€22.75

Free delivery - Tue, Dec 23

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Part no. 9111165-PB2

PDC Sensor BMW E81 E82 E87 E88 E90 E91 Ultrasonic Parking SET X4 Platinbronze

€51.95

Free delivery - Tue, Dec 23

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Part no. 7807827-1

BMW 1 3 Series E87 E90 LCI 120d 320d N47 Diesel ECU Kit DDE 7807827 CAS3 Key

€170.95

Free delivery - Tue, Dec 23

If paid before 14:00

Part no. 9141048

BMW E60 E87 E90 E91 Hands-Free Electronics Charging MULF2 9141048

€71.95

Free delivery - Tue, Dec 23

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Part no. 8408783

BMW X5 E53 Flap Radio Partition Mounting Part Cover Dashboard 8408783

€23.95

Free delivery - Tue, Dec 23

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Part no. 8594489

BMW X1 F48 Mini F55 F56 F57 Battery Cable Starter-Base B+ 8594489

€23.95

Free delivery - Tue, Dec 23

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Part no. A0015424623

Mercedes A207 W204 W212 Front Parking PDC Display Panel A0015424623

€23.95

Free delivery - Tue, Dec 23

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Part no. A1679003504

Ignition Switch Mercedes W177 Electronic Anti Theft Control Module A1679003504

€56.95

Free delivery - Tue, Dec 23

If paid before 14:00

Part no. A0009001017

Mercedes S205 W205 Air Conditioning Control Module A/C ECU Unit A0009001017

€33.95

Free delivery - Tue, Dec 23

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Part no. 4F0919813E

Audi A4 B8 Chip Card Reader for Road Toll ETC Japan Module Unit 4F0919813E

€37.95

Free delivery - Tue, Dec 23

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Audi A1 8X Front Passenger Side Door Module Unit Control ECU 8X0959792D

-5%

Part no. 8X0959792D

Audi A1 8X Front Passenger Side Door Module Unit Control ECU 8X0959792D

Promo price

€23.95

€22.75

Free delivery - Tue, Dec 23

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Mercedes W205 Diesel OM651 Engine Starter Motor Actuator Bosch A6519064300

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Part no. A6519064300

Mercedes W205 Diesel OM651 Engine Starter Motor Actuator Bosch A6519064300

Promo price

€23.95

€22.75

Free delivery - Tue, Dec 23

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Part no. A2075403332

Convertible Cable Mercedes A207 C207 Roof Rail Wiring Harness A2075403332

€32.95

Free delivery - Tue, Dec 23

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Part no. A2749000800-1

Mercedes W205 C200 274.920 184HP Engine ECU Kit A2749000800 Key Lock Automatic

€222.95

Free delivery - Tue, Dec 23

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Part no. 8578946-3

BMW F20 F30 F32 120d 320d 420d 184HP N47N Engine ECU Kit DDE 8578946 Automatic

€142.95

Free delivery - Tue, Dec 23

If paid before 14:00

Mini One D R50 W17 Base B+ Battery Terminal Point Engine Compartment 7790996

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Part no. 7790996

Mini One D R50 W17 Base B+ Battery Terminal Point Engine Compartment 7790996

Promo price

€23.95

€22.75

Free delivery - Tue, Dec 23

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Part no. 7792130

BMW Mini Cooper One R50 R52 R53 R55 R56 R57 Earth Ground Cable 7792130

€23.95

Free delivery - Tue, Dec 23

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Part no. 2755095

Mini Clubman R55 Amplifier Holder System HiFi Stereo Audio 2755095

€23.95

Free delivery - Tue, Dec 23

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Part no. A2078205489

Mercedes-Benz W207 A207 Left Right A-Pillar Radio Aerial Antenna Amplifier Unit

€23.95

Free delivery - Tue, Dec 23

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Part no. 7948144

BMW F40 F44 Seat Occupancy Mat Control Unit Sensor 7948144

€23.95

Free delivery - Tue, Dec 23

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Part no. 7P6971121H

VW Volkswagen Touareg 7P Door Wiring Loom Harness Front Left N/S 7P6971121C

€28.95

Free delivery - Tue, Dec 23

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Part no. 8T0035223L

Audi A4 B8 A5 8T Audio Amplifier Sound Booster Control Unit Module 8T0035223L

€185.95

Free delivery - Tue, Dec 23

If paid before 14:00

Air Module BMW F01 F02 LCI F07 GT F10 F11 F13 ECU Control Unit 6864923

-5%

Part no. 6864923

Air Module BMW F01 F02 LCI F07 GT F10 F11 F13 ECU Control Unit 6864923

Promo price

€23.95

€22.75

Free delivery - Tue, Dec 23

If paid before 14:00

...

Showing 3268-3366 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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