Automotive electrical systems
More informationAt 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.
Make
Category
Subcategory
Condition
In Stock
Price
Part no. 8P0959802K
Audi A3 8P Door Window Lifter Regulator Motor Front Left N/S 8P0959802K
€23.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 8V0035398A
Audi A3 8V A-Pillar Speaker Tweeter Front Left Right N/O/S 8V0035398A
€23.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 5QS959655A
Audi A3 S3 8Y Air Module Crash Impact Sensor Unit Control ECU 5QS959655A
€303.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 4L0907335
Audi Q7 4L Quattro S Line Keyless Entry Antenna Control Module 4L0907335
€23.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 5Q0906121M
Audi Q3 8U 2.0 TDI CUWA Fuel Pump Relay Control Unit Module ECU 5Q0906121M
€37.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 8K0959663F
Audi A6 C7 Voltage Converter Stabilizer Control Module Unit ECU 8K0959663F
€23.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 4H0907637K
Audi A8L 4H Yaw Rate Domain Control Module Unit ECU 4H0907637K
€222.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 8W9971104A
Audi S4 B9 Wiring Loom Set PDC Rear Complete Harness Parking Sensor 8W9971104A
€32.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 5Q0959595B
Audi A3 8V Rear Door Control Module Unit ECU Left Right N/O/S 5Q0959595B
€23.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 059903016JX
Audi A5 8T 3.0 TDI CCWA Diesel Alternator 059903016J
€56.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 1K0907719B
Audi A3 8P Anti Theft Alarm System Control Module Unit ECU 1K0907719B
€23.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 8W0035192E
Audi A4 B9 Multimedia Stereo Sat Nav SD CD Player Radio Head Unit 8W0035192E
€284.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 059911021G
Motor Starter Audi A7 4G Q5 8R 3.0TDI Diesel Engine Starter Unit 059911021G
€47.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 8W9971104M
Audi A4 B9 Rear Bumper PDC Parking Sensor Harness Wiring Loom Cable 8W9971104M
€47.95
Free delivery - Tue, Nov 04
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, Nov 04
If paid before 14:00
Part no. 03G903016F
Audi A4 B8 2.0 TDI Alternator Generator 150A Diesel Engine Unit 03G903016F
€94.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 06N971627B
Audi A3 8Y Engine Injector Module Wiring Harness Cable 2.0 TFSI 06N971627B
€47.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 8K0955557C
Audi A4 B8 Crash Impact Sensor Unit Air Module 8K0955557C
€23.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 8K0907279
Audi A5 8T Gateway Convenience Body Module Control Unit ECU 8K0907279C
€23.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 8W0907468J
Audi A4 B9 Gateway Control Unit Module ECU 8W0907468J
€341.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 5Q0906093
Fuel Pump Control Audi TT FV A3 8V Petrol Engine Unit Module 5Q0906093
€23.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 8K0907064DC
Body Control Module Audi A4 B8 A5 8T BCM Comfort Control Unit 8K0907064DC
€23.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 4H0959793R
Audi A8 D4 4H Front Door Control Module Unit ECU Driver's Side 4H0959793R
€23.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 8D0951253A
Audi A6 C6 Multi Use Relay Unit Module 4 Pins 373 8D0951253A
€23.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 4L0907290
Audi Q7 4L Gateway Convenience Module Unit Control ECU 4L0907290
€23.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 8P4971693P
Audi A3 8P Door Wiring Harness Loom Rear Left Right N/O/S Cabling 8P4971693P
€23.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 8R0907468AE
Audi A5 8T 2.0 TDI Gateway Control Module Unit ECU 8R0907468AE
€99.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 5Q0971230FP
Battery Cable Audi A3 8V Starter Alternator Wiring Harness 5Q0971230FP
€23.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 8T8035570-1
Audi A4 B8 Radio Antenna Noise Signal Disturbance Suppressor 8T8035570
€23.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 7L0864643B
Batery Cover Audi Q7 4L VW Touareg 7P Porsche Cayenn 9PA Top Cap 7L0864643B
€23.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 8K0907063M
Audi A4 B8 A5 8T Body Control Comfort Unit Module Unit ECU 8K0907063M
€28.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 8W0906093G
Audi A4 B9 A5 F5 Petrol Engine Fuel Pump Control Unit Module 8W0906093G
€23.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 4G2907311C-1
Audi A7 4G8 3.0 TDI CRTE 218HP Quattro Engine ECU Kit 4G2907311C BCM2 + 2 Keys
€664.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 83F971104F
Audi Q3 F3 Rear Bumper PDC Wiring Loom Cabling Parking Sensor 83F971104F
€56.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 3Q0907530AC-1
Audi Q2 GA Gateway Diagnostics Interface Control Module 3Q0907530AC
€23.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 8X0959793K
Audi A1 8X Door Module Front Right O/S Driver's Side Control Unit ECU 8X0959793K
€23.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 4FO903291
Audi A6 C6 2.0 TDI Relay Condenser 4FO903291
€23.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 4G8959792G
Audi A6 C7 Front Left N/S Door Lock Control Module Unit ECU 4F0959792T
€23.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 4H0907658B
Audi A3 8V A5 A6 A7 Air Quality Sensor Unit 4H09076588
€23.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 8K0959663
Audi A4 B8 A5 8T Voltage Stabilizer Converter Control Unit Module 8K0959663
€23.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 8T0959795N
Audi A4 B8 Rear Door Control Module Unit Left Right N/O/S 8T0959795N
€23.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 4G8959795J
Audi A7 4G8 Rear Door Module Control Module Unit Left Right N/O/S 4G8959795J
€23.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 1J0971235S
Audi TT 8N HV Battery Negative Earth Terminal Harness Wiring Cable 1J0971235S
€23.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 06L971627A
Audi S1 8X S3 8V VW Golf R Mk7 2.0 TFSI Fuel Injectors Wiring Harness 06L971627A
€23.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 8Y0035465
Audi A3 8Y A4 B9 Q5 FY Harman Speaker Amplifier Booster Sound System 8Y0035465
€47.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 8E0907637
Audi A4 B7 YAW Sensor ESP Rotation Rate Acceleration Control Unit 8E0907637
€32.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 8T0959795F
Audi A5 8F Window Lifter Module Control Unit Rear Left Right N/O/S 8T0959795F
€23.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 8U0971104E
Audi Q3 8U Rear Bumper PDC Parking Sensor Wiring Harness Loom Cable 8U0971104E
€47.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 4M0907247
Audi A4 B9 A5 F5 Keyless Entry Amplifier Control Box Module Antenna 4M0907247
€23.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 4H0907401M
Audi A8 4H 3.0 TDI CTBA Quattro 258HP Engine Control ECU 4H0907401M
€446.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 8W0907063CF
Audi A4 B9 Body Control Comfort Unit Module BCM Unit ECU 8W0907063CF
€80.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 5Q0915181E
Audi A3 8V Negative Battery Terminal Cable Harness Wiring Loom 5Q0915181E
€23.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 8V0857273P
Audi A3 8V Multimedia Display Screen Radio Sat Nav Head Unit 8V0857273P
€56.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 8K0937517A
Audi A4 B8 A5 8T Battery Postive Terminal Distribution Power Board 8K0937517A
€23.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 8U0907468AC
Audi A1 8X Q3 8U Central Gateway Control Unit Module Relay ECU 8U0907468AC
€23.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 5LA907357H
Audi A6 C6 Front Lamp Headlight Range Control Module Unit ECU 5LA907357H
€23.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 05L907309
Audi A4 B9 A5 F5 30 TDI DTNB 136HP Engine Control Unit ECU 05L907309 Automatic
€284.95
Free delivery - Tue, Nov 04
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 - Tue, Nov 04
If paid before 14:00
Part no. 8W0915181A
Audi A5 F5 HV Battery Negative Cable Terminal 8W0915181A
€28.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 4H0881073B
Audi A8L 4H Front Seat Air Pump Control Module Unit 4H0881073B
€23.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 4L0971767
Audi Q7 4L Washer Bottle Reservoir Wiring Loom Harness 4L0971767
€23.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 8K0971104C
Audi A4 B8 Rear Bumper PDC Parking Sensor Wiring Harness Loom 8K0971104C
€23.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 8K0971095E
Audi A4 B8 Front Bumper PDC Wiring Park Assist Sensor Harness 8K0971095E
€47.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 4E0910217C
Audi Q7 4L Front Camera FAS Lane Assistance Control Unit 4E0910217D
€56.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 3Q0941329
Volkswagen Skoda Seat Audi Diesel Engine Adblue Module Control Unit 3Q0941329
€23.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 4H0959795E
Audi A8 4H Rear Door Module Control Unit Left Right N/O/S 4H0959795E
€23.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 8E0035111D
Audi TT 8J Radio Head Unit Navi CD DVD Player Changer 8E0035111D
€23.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 4F0959795M
Audi A6 C6 Rear Door Left Right N/O/S Module Unit Control ECU 4F0959795M
€23.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 079903021JX
Audi S8 D3 S6 C6 Alternator Water Cooled 190A 14V 5.2 FSI V10 079903021J
€108.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 8K0915181H
Audi A1 8X Negative Minus Battery Terminal Cable 1.4 TFSI CAXA Petrol 8K0915181H
€23.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 8H0035411D
Audi A3 8P Door Card Speaker Rear Left Right N/O/S Audio Speaker 8H0035411
€23.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 8W0915459E
Audi A4 B9 Battery Positive Terminal Cable Plus Pole Wiring Harness 8W0915459E
€28.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 4F0959760D
Audi Q7 4L Front Seat Memory Control Module Unit ECU Left Right N/O/S 4F0959760D
€118.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 8X0971693
Audi A1 8X Door Wiring Harness Loom Rear Left Right N/O/S Cabling 8X0971693
€23.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 8Y0035042C
Audi S3 8Y Body Control Comfort Module ECU Unit Bluetooth 8Y0035042C
€1,139.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 4H0959107AC
Audi A8 4D Tailgate Lift Boot Lid Control Unit Module Trunk 4H0959107AC
€42.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 8E0035456C
Audi A4 B7 Telephone Aerial Antenna Signal Amplifier Module 8E0035456C
€23.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 04E907309AC-1
Audi A1 8X 1.4 TFSI CZCA 125HP Engine ECU Kit BCM Lock + Key 04E907309AC Manual
€161.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 4H0951223
Audi A6 C7 Single Horn Alarm Siren High Tone Control Unit Module 4H0951223
€23.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 05E903026K
Volkswagen Golf Mk8 Audi Q2 GA A3 8V 8Y 1.5 TSI Alternator 14V 140A 05E903026K
€56.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 8K0907063N
Audi A4 B8 Body Control Comfort Unit Module BCM Unit ECU 8K0907063N
€51.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 5Q0907530AJ
Audi RS3 8V Gateway Control Module GCM Unit ECU 5Q0907530AJ
€32.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 4G0907401F-1
Audi A7 4G 3.0 TDI CDUC Quattro Engine ECU Kit BCM + Ignition + Key 04L907445F
€398.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 4L0919614B
Audi Q7 4L Navigation Multimedia Control Panel Knob Unit 4L0919614B
€550.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 8W8959107D
Audi A5 F5 Rear Hatch Tailgate Boot Lid Control Module Unit ECU 8W8959107D
€23.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 8V0907451
Audi A3 8V Sun Light Solar Sensor Control Detector 8V0907451
€23.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 8K0959792J
Audi A4 B8 Door Module Front Left N/S Control Unit Module ECU 8K0959792J
€23.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 03L903023K
Audi A3 8V A4 A5 B8 Alternator Generator Electrical Unit Diesel 03L903023K
€61.95
Free delivery - Tue, Nov 04
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, Nov 04
If paid before 14:00
Part no. 8P0907063A
Audi A3 8P BCM Body Control Unit Comfort Module 8P0907063A
€94.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 4G2971228DQ
Audi A6 A7 4G 3.0 TDI Starter Alternator Wiring Harness 4G2971228DQ
€28.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 8T0959792H
Door Module Audi A5 8T A4 B8 Control Front Left N/S Unit 8T0959792H
€23.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 4F0910274C
Audi Q7 4L Tyre Pressure Sensor Control Module Unit ECU 4F0910274C
€23.95
Free delivery - Tue, Nov 04
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, Nov 04
If paid before 14:00
Part no. 8P0959655J
Audi A3 E 104 T Air Module ECU Sensor Control Unit 8P0959655J
€23.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 8T0907468AB
Audi A4 B8 2.0 TDI CAGA Gateway Interface Control Module Unit ECU 8T0907468H
€23.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 8T0959793F
Door Module Audi A5 8T A4 B8 Control Front Right O/S Unit 8T0959793F
€23.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 8W0959595N
Audi A4 B9 Door Module Rear Right Left N/O/S Control Unit 8W0959595N
€47.95
Free delivery - Tue, Nov 04
If paid before 14:00
Part no. 06M911021A
Audi SQ5 FY Starter Motor Engine Diesel Bosch 06M911021A
€23.95
Free delivery - Tue, Nov 04
If paid before 14:00
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 .