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.
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Part no. 8K0862401
Audi A3 8P A4 B8 A5 8T Telephone Holder Connection Adapter Module 8K0862401
£13.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 8K0971687AG
Audi A4 B8 Door Harness Loom Cable Wire Rear Left N/S 8K0971687AG
£13.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 4F0971547
Audi A6 C6 Cable Wiring Loom Heater Matrix Air Conditioning Cable 4F0971547
£13.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 4F0907280E
Audi Q7 4L On Board Power Supply Control Module Unit ECU 4F0907280E
£13.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 4L0959795B
Audi Q7 4L Door Control Module Unit ECU Rear Left N/S 4L0959795B
£13.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 3Q0907338C
Audi VW Seat Skoda Headlight Aim Range Control Unit Module ECU Xenon 3Q0907338C
£13.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 8E9035223
Audi A4 B7 Audio Radio Aerial Amplifier Control Unit Harman Becker 8E9035223
£13.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 03L906018AB-2
Audi A3 8P 2.0 TDI 140HP CFFB Diesel Engine Control ECU Kit 03L906018AB Manual
£123.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 8K0907383E
Audi A5 8T Towbar Trailer Hitch Control Module Unit ECU HELLA 8K0907383B
£47.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 4E0035061G
Audi A8 D4 Multimedia CD Player Audio Stereo Radio Head Unit 4E0035061G
£123.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 3AA962243H-1
Volkswagen VW Audi Tailgate Opening Boot Control Unit Module 3AA962243H
£23.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 5Q0959393B
Audi A3 8V Front Door Control Module Unit Right O/S 5Q0959393B
£18.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 3Q0959435L
Entry Keyless Audi A3 S3 RS3 8V Kessy Control Module Unit ECU 3Q0959435L
£18.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 4H0907401M
Audi A8 4H 3.0 TDI CTBA Quattro 258HP Engine Control ECU 4H0907401M
£379.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 8W0906121B
Audi A4 B9 A5 F5 2.0 TDI Engine Fuel Pump Control Unit Module 8W0906121B
£13.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 06K907425B-15
Audi S3 8V 2.0 TFSI DJHA 310HP Quattro Engine Unit ECU Kit 06K907425B Automatic
£265.95
Free delivery - Tue, Dec 02
If paid before 14:00
Part no. 03L911024B
Audi A6 C7 2.0 TDI CGLC Diesel Starter Motor 03L911024B
£13.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. A3-8P-SCREEN
Audi A3 8P Head Unit Display Screen Sat Nav Navigation Dashboard Unit
£113.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 8P0907279P
Audi A3 8P Gateway Interface Onboard Supply Control Module Unit ECU 8P0907279P
£189.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 4H0909131
Audi A8L 4H Ignition Keyless Entry Reader Coil Module 4H0909131
£13.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 4H0971160A
Audi A8 D4 Door Card Wiring Harness Loom Front Passenger Side 4H0971160A
£13.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. RHD-8Y2971029AG
Audi A3 8Y Front Door Wiring Loom Harness Cable Driver's Side 8Y2971029AG
£70.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 4G5971030EF
Audi RS6 C7 Door Wiring Front Left N/S Door Harness Loom 4G5971030EF
£18.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 6C0915441
Audi A1 8X Volkswagen Polo GTI 6C Battery Positive Terminal Jump Cover 6C0915441
£13.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 8W0035192E
Audi A4 B9 Multimedia Stereo Sat Nav SD CD Player Radio Head Unit 8W0035192E
£142.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 8V3971036
Audi A3 S3 8V Front Door Card Wiring Harness Passenger Left N/S 8V3971036
£18.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 4H0881073B
Audi A8L 4H Front Seat Air Pump Control Module Unit 4H0881073B
£13.95
Free delivery - Mon, Dec 01
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
£237.95
Free delivery - Tue, Dec 02
If paid before 14:00
Part no. 4H0919275-DGR
Audi TT 8J PDC Parking Distance Sensor Control Daytona Grey Pearl Z7S 4H0919275
£13.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 4H0907063DB
Audi A5 8T Body Control Comfort Unit Convenience Module BCM1 ECU 4H0907063DB
£123.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 03L906018KD-2
Audi A4 B8 2.0 TDI Quattro CGLC 177HP Engine Control ECU Kit 03L906018KD Manual
£170.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 1S0919275-PHB
Audi A3 8P PDC Parking Distance Control Sensor Module Unit ECU Phantom Black Z9Y
£13.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 7H0907655A
Audi TT 8J Yaw Rotary Rate Sensor Speed Cluster Sensor 7H0907655A
£18.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 4H0907145
Audi A6 C7 Air Suspension Level Height Adjustment Module Control Unit 4H0907145
£23.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 8W0907159J
Audi A4 B9 A5 F5 Impact Sound Actuator Control Module 8W0907159J
£37.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 8K2907115AE
Audi A4 B8 A5 8T 2.0TFSI CDNB Quattro 180HP Engine Unit ECU 8K2907115AE Manual
£66.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 8K0959793
Audi A5 8T Door Module Control Unit ECU Front Driver's Side 8K0959793
£23.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 8J0971036F
Audi TT Mk2 8J Door Wiring Harness Cable Loom Passenger Side 8J0971036D
£13.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 06A906033JL
Audi A3 8P 1.6 Petrol MPI 102HP BSE Engine ECU Kit 06A906033JL Ignition + Key
£75.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 8E0035456C
Audi A4 B7 Telephone Aerial Antenna Signal Amplifier Module 8E0035456C
£13.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 8V0906259F-1
Audi A3 S3 8V 2.0 TFSI CJXC 300HP Quattro Engine ECU Kit 8V0906259F BCM + Key
£189.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 5DS010161
Audi A8 D4 Trailer Hook Tow Bar Control Module Unit 5DS010161
£108.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 4H0035666L
Audi A8 D4 4H Multimedia Radio Sat Nav CD Player SD SIM Head Unit 4H0035666L
£94.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 8R0919604
Audi A5 8T Multimedia Radio Sat Nav Screen Display Head Unit 8R0919604
£23.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 03L906018PH
Audi Q3 8U 2.0 TDI CFGC 177HP Quattro Engine Control Unit ECU 03L906018PH
£151.95
Free delivery - Tue, Dec 02
If paid before 14:00
Part no. 1J0971235R
Audi TT 8N Negative Battery Terminal Cable Wiring 1J0971235R
£13.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 8K9035225M
Audi S4 B8 Antenna Amplifier Aerial Module Control Unit Left N/S 8K9035225M
£13.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 4H0919475H
Audi A6 C7 PDC Parking Distance Control Module Unit ECU Valeo 4H0919475H
£42.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 3WA959592A
Audi A3 8Y Door Control Unit ECU Module Front Left N/S Side 3WA959595A
£56.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 06F971082F
Audi TT 8J 2.0 TFSI Petrol Fuel Injectors Wiring Harness 06F971082F
£18.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 4H0959107AC
Audi A8 4D Tailgate Lift Boot Lid Control Unit Module Trunk 4H0959107AC
£37.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 059903019H
Audi A8 D4 Alternator Generator Electrical Unit 3.0 TDI Diesel Engine 059903019H
£94.95
Free delivery - Tue, Dec 02
If paid before 14:00
Part no. 4H4907357D
Audi A6 C7 Headlight Head Light Lamp Range Control Unit Module ECU 4H4907357D
£142.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 4H0959107F
Audi A8 D4 Tailgate Lift Trunk Boot Lid Control Unit Module 4H0959107F
£70.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 4F0915181B
Audi A6 C6 Battery Monitoring Module Control Unit 4F0915181B
£23.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 1K0971920
Audi A3 8P Battery Clamp Positive Plus Pole Cable Protection Panel 1K0971920
£13.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 8V0971104
Audi A3 S3 8V Sportback Wiring Harness PDC Parking Sensor Rear Bumper 8V0971104
£32.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 03L906018RC-1
Audi Q3 8U 2.0 TDI CFGC Quattro Engine ECU Kit 03L906018RC Ignition + Key Manual
£151.95
Free delivery - Tue, Dec 02
If paid before 14:00
Part no. 5Q0959393
Audi A3 8V Control Unit Central Door Locking Module ECU 5Q0959393
£23.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 5Q0959592B
Audi A3 8V Door Module Control Unit Front Passenger Side 5Q0959592B
£13.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 8T0959795N
Audi A4 B8 Rear Door Control Module Unit Left Right N/O/S 8T0959795N
£13.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 8P3907357B-1
Headlight Range Module Audi A3 S3 8P Xenon Lamp Control Unit ECU 8P3907357B
£13.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 4G1919129
Audi A1 8X A4 B8 A6 C7 A7 4G TV Tuner Module Control Unit 4G1919129
£127.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 4H0907247
Audi A6 4G Keyless Entry Aerial Antenna Control Unit Module 4H0907247
£13.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 4L2035670L
Audi Q7 4L Harman Becker Head Unit Radio Player Sat Navigation Module 4L2035670L
£469.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 8T0907468P
Audi S5 8T Gateway Control Unit Module ECU 8T0907468P
£18.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 4L0971104S
Audi Q7 4L Rear Bumper Wiring Loom PDC Harness Parking Sensor 4L0971104
£23.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 8W0971687AQ
Audi A4 B9 Rear Left Right N/O/S Door Wiring Loom Harness 8W0971687AQ
£28.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 8K0959792E
Audi A4 B8 A5 8T Front Door Module Control Unit Module ECU Left N/S 8K0959792E
£13.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 8S0971035A
Audi TT 8S Door Harness Loom Cable Wiring Front Right O/S 88S0971035A
£23.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 4H0907064EN
Audi A7 4G BCM Body Comfort Convenience Module Unit ECU 4H0907064EN
£37.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 8K0959792R
Audi Q5 8R Door Module Control Unit Front Passenger Side 8K0959792R
£18.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 1EA907376C
Audi S3 8Y Rear Suspension Damper Module Control Unit 1EA907376C
£94.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 8P3907357B
Audi S3 8P Xenon Headlight Range Control Module Unit ECU 8P3907357B
Product currently unavailable
Part no. 8W0919620
Audi A5 F5 Display Screen Radio Multimedia Navigation Sat Nav 4G2919601P
£284.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 8H0919475AB
AUDI A7 4G8 Parking Assist Sensors Distance Control Module 8H0919475AB
£61.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 4F0903291
Audi A6 C6 3.0 TDI Suppression Condenser Noise Filter 4F0903291
£13.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 4L0907468B
Audi Q7 4L Gateway Module Central Control Unit 4L0907468B
£13.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 443937105B-1
Volkswagen Audi Skoda Seat Thermal Fuse Relay Amp 15A 12V 443937105B
£18.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 8X0907159C
Audi A1 8X Impact Sound Actuator Control Module 8X0907159C
£28.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 06K907425B-6
Audi S3 8V 2.0 TFSI DJHA 310HP Quattro Engine ECU Kit 06K907425B 2 Key Lock
£227.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 8P0959802K
Audi A3 8P Door Window Lifter Regulator Motor Front Left N/S 8P0959802K
£18.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 057911023EX-1
Audi Q7 4L Engine Starter Motor Actuator Starter 057911023EX
£47.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 4M0959793H
Audi A5 F5 A4 B9 Front Door Control Module Unit ECU Driver's Side 4M0959793H
£23.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 4F1971030AD
Audi A6 S6 C6 Front Passenger Door Wiring Harness Loom Left N/S 4F1971030AD
£13.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 8Y0035465A
Audi Q2 GA Harman Speaker Amplifier Booster Sound System 8Y0035465A
£123.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 4G0035056
Audi A4 B8 Sat Nav Multimedia DAB Radio Control Head Unit 4G0035056
£189.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 8K0907063M
Audi A4 B8 A5 8T Body Control Comfort Unit Module Unit ECU 8K0907063M
£13.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 8K0907401F-1
Audi A4 B8 3.0 TDI 240HP Engine ECU Kit Ignition + Key 8K0907401F Manual
£132.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 8W0907063CF
Audi A4 B9 Body Control Comfort Unit Module BCM Unit ECU 8W0907063CF
£51.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 8T0959792H
Door Module Audi A5 8T A4 B8 Control Front Left N/S Unit 8T0959792H
£13.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 5WA980653E
Audi A3 S3 8Y Front Camera FAS Lane Assistance Control Unit 5WA980653E
£94.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 03L906018AK
Audi A3 8P 2.0 TDI CFGB 170HP Diesel Engine Control ECU 03L906018AK Automatic
£56.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. RHD-8K2971228F
Audi A5 8T 2.0 TFSI Alternator HV Battery Earth Cable Terminal Wiring 8K2971228F
£18.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 8T0959793F
Door Module Audi A5 8T A4 B8 Control Front Right O/S Unit 8T0959793F
£13.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 5WA937548H
Audi A3 8Y Main Fuse Socket 5WA937548H
£32.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 4M0959592N
Audi Q7 4M Front Door Module Control Unit ECU Passenger Side 4M0959592N
£56.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 4H0907357
Audi A7 4G A8 D4 Headlight Head Light Lamp Range Control Unit Module 4H0907357
£13.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 5Q0937084CJ
Audi A3 8V 1.6 TDI DBKA BCM Body Control Module Unit ECU 5Q0937084CJ
£28.95
Free delivery - Mon, Dec 01
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 .