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. 8639582-2
BMW F20 M135i F22 M235i F30 335i N55 Engine Unit ECU DME 8639582 Manual
£332.95
Free delivery - Thu, Dec 18
If paid before 14:00
Part no. A3-8P-ANDROID
Audi A3 8P A4 B7 Head Unit 7" Navigation Sat Nav Radio Audio Android DAB+ 2-DIN
£237.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. KK31-3F720-DC
Ford Transit Connect Mk1 Electronic Steering Rack Wiring Loom KK31-3F720-DC
£56.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 03G903016F
Audi A4 B8 2.0 TDI Alternator Generator 150A Diesel Engine Unit 03G903016F
£75.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. CPBM2022H-CIC
BMW F07 Car Play Android Auto Module Adapter CPBM2022H-CIC
£75.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 6956746-MB1
BMW E81 E87 E90 LCI PDC Parking Ultrasonic Sensor Set x4 Monaco Blau - A35
£13.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. JX61-12B533-AB
Ford Transit Mk8 Engine Glow Plug Relay Module 2.0 EcoBlue Diesel JX61-12B533-AB
£13.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. KK3T-9K499-FBE67
Ford Transit Mk8 Adblue System Harness Loom Wiring Cable KK3T-9K499-FBE67
£142.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. KK3T-18812-GA
Ford Transit Mk8 Roof Aerial Antenna Wiring Harness Cable KK3T-18812-GA
£32.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 03L906018QK
Skoda Yeti Mk1 5L 2.0 TDI CFHF 4x4 Engine Control Unit ECU 03L906018QK Manual
£123.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 070906016BL
VW Volkswagen Touareg 2.5 TDI BAC Engine Control Unit ECU 070906016BL Automatic
£75.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 300001506667
VW Touareg 7L Towing Hitch Trailer Hook Module Control Unit 300001506667
£85.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 3D0919473
Volkswagen Touareg 7L PDC Parking Aid System Display Panel Unit 3D0919473
£13.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 0AD927755AR
VW Volkswagen Touareg 7L Transfer Case Box Control Unit Module ECU 0AD927755AR
£23.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 5L0035200
Skoda Yeti 5L Radio Stereo Head Unit Navigation Display Screen STD2 5L0035200
£427.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 9381099
BMW F20 F30 F31 BCM Body Module Control Unit FEM Fuse Box 9381099
£42.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 9124585-SED1
BMW E87 E90 PDC Parking Sensor Ultrasonic Set x4 Sedona Rot - A79
£13.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 9124585-SED
BMW E87 E90 PDC Parking Sensors Ultrasonic Set x2 Sedonarot - A79 9124585
£13.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 7L0971235
Volkswagen Touareg 7L Negative Battery Terminal Cable Wiring Loom 7L0971235
£13.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 7L0971767
Volkswagen Touareg 7L Washer Reservoir Bottle Wiring Harness Loom 7L0971767
£13.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 7L6937049M-1
VW Volkswagen Touareg 7L Onboard Supply Comfort Unit Module Unit ECU 7L6937049M
£23.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 6940623-QB1
BMW E81 E82 E84 E87 E90 E91 PDC Park Sensor Ultrasonic Set x4 Quarz Blau - A18
£13.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 1P0955559A
Seat Leon Mk2 1P Altea 5P Front Window Windscreen Rain Sensor Module 1P0955559A
£85.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 7L0927841
VW Volkswagen Touareg 7L Mk1 ESP Relay Unit Grey 481 7L0927841
£13.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 7L6907160A
Volkswagen VW Touareg 7L Relay Unit Servotronic Module 6 Pins 7L6907160A
£13.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 1P0951171
Seat Leon Mk2 1P Interior Headliner Ultrasonic Motion Alarm Sensor 1P0951171
£13.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 03L906018HC
Seat Leon FR 1P 2.0 TDI CFJA 170HP Engine Control ECU Kit 03L906018HC Manual
£227.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 5P0919475C
Seat Leon Mk2 1P PDC Parking Distance Control Sensor Module Unit ECU 5P0919475C
£56.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 5Q0035874A
Skoda Rapid Spaceback NH1 Multimedia Audio Sat Nav Head Unit 5Q0035874A
£175.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 5JJ877521A
Skoda Rapid NH Anti Theft Alarm Sensor Module Control Unit Panel Grey 5Q0951172
£23.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 5JA919604A
Skoda Rapid NH1 Dashboard Radio Multifunction Media Display Unit 5JA919604A
£85.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. RHD-5JC035727
Skoda Rapid NH1 USB AUX Port Socket Connection Media Adapter 5JC035727
£23.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. RHD-8W2971111D
Audi A4 B9 A5 F5 Power Steering Rack Wiring Harness Loom Cable 8W2971111D
£32.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 6G9T-14B192-AA-1
Ford Mondeo Transit Relay 4-Pin Black FoMoCo Unit 6G9T-14B192-AA SET X2
£13.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 6G9T-14B192-EA-1
Ford Fiesta Transit Relay 4-Pin Grey FoMoCo Unit 6G9T-14B192-EA SET X2
£13.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 4M0959792N
Audi A5 F5 Door Module Control Unit Module ECU Front Passenger Side 4M0959792N
£37.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 4M0959793N
Audi A5 F5 A4 B9 Front Door Control Module Unit ECU Driver's Side 4M0959793N
£47.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 8W6971035AN
Audi A5 F5 Front Door Wiring Harness Cable Driver's Side 8W6971035R
£47.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 8W6971036G
Audi A4 B9 A5 F5 Front Door Wiring Harness Cable Passenger Side 8W6971036D
£37.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 03G906016MF
Audi A6 C6 2.0 TDI BRE 140HP Engine Control Unit ECU 03G906016MF Automatic
£28.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 5N0035341F
Volkswagen VW Scirocco Mk3 Multimedia Interface Media-In Module Box 5N0035341F
£23.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. RHD-6R2971121DK
VW Volkswagen Polo 6R Door Wiring Passenger Side Harness Loom 6R2971121DK
£32.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 4E0910110C
Audi A6 S6 C6 6-Disc CD Changer Magazine Head Unit MMI 4E0910110C
£32.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. RHD-8P7971030L
Audi A3 8P7 Convertible Door Wiring Cable Harness Driver's Side 8P7971030L
£142.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 4H0959792H
Audi A8 D4 4H Front Door Control Module Unit ECU Passenger Side 4H0959792H
£18.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 03L906022GB
Skoda Octavia RS 1Z 2.0 TDI CEGA 170HP Engine Control ECU 03L906022GB Manual
£94.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 4L0907357
Audi Q7 4L Headlight Level Range Adjustment Module Control Unit 4L0907357
£13.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 8C1112A650CC-1
Ford Transit MK7 2.2 TDCI 85HP Diesel Engine Control ECU Kit 8C1112A650CC Manual
£189.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 03C906016BA
Volkswagen Scirocco Mk3 1.4 TSI CAXA 122HP Engine Control ECU 03C906016BA Manual
£85.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 4F1862335
Audi Q7 4L Bluetooth Interface Telephone Control Module ECU Unit 4F1862335
£56.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 09D927750JJ
Audi Q7 4L 4.2 TDI Automatic Transmission Module Controller Unit 09D927750JJ
£56.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 4E0919884BD
Audi Q7 4L A8 D3 Navigation Disc DVD Europe Version 2008 4E0919884BD
£23.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 1K0909605AE
VW Volkswagen Scirocco Mk3 Air Module Control Unit ECU 1K0909605AE
£13.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 9342897
BMW X5 E70 Footwell Light Control Module Unit LEAR FRM3R VDM 9342897
£142.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 1K8955557
Volkswagen Scirocco Mk3 Door Crash Impact Pressure Sensor Unit 1K8955557
£13.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 9149835
BMW X5 E70 Front Seat Control Unit Module Driver's Side 9149835
£47.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 5K0937084F
Volkswagen Scirocco Mk3 Fuse Box Module Comfort BCM Control Unit ECU 5K0937084F
£28.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 7T11-12A650-HF
Ford Transit Connect 1.8 TDCI 75HP Engine Control ECU 7T11-12A650-HF Manual
£37.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 8573257-10
BMW F20 F30 F32 120d 320d 420d N47N 184HP Control ECU Kit DDE 8573257 Manual
£94.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 3C0035279MX
VW Volkswagen Scirocco Mk3 Radio Head Unit Media CD Player 3C0035279MX
£66.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 9325651
BMW F20 Central Body Control Module Comfort Unit BCM ECU 9325651
£56.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 03C906026AB
Volkswagen Scirocco Mk3 1.4 TSI CTHD 160HP Engine ECU 03C906026AB Automatic
£94.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 7P6907357C
Audi A3 8V VW Touareg 7P Xenon Headlight Module Control Unit 7P6907357C
£28.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. RHD-8K290612
Volkswagen VW Scirocco Mk3 Fuse Box Electrical Control Unit Module 8K290612
£23.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 5Q0919298K
Audi A3 8V PDC Parking Distance Control Sensor Module Unit ECU 5Q0919298K
£51.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 5Q0907441A
Audi A3 S3 8V Rear View Reverse Camera Module Control Unit 5Q0907441A
£123.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 4E0035785D
Audi A4 B8 A5 8T MMI Multimedia Interface Control Unit Module 4E0035785D
£85.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 8K0907064N
Audi A4 B8 A5 8T Body Control Comfort Unit Module BCM Convenience ECU 8K0907064N
£18.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. RHD-1K8971121S
Volkswagen VW Scirocco Mk3 Passenger Door Wiring Harness Loom Cable 1K8971121S
£28.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. RHD-1K8971120S
Volkswagen VW Scirocco Mk3 Driver's Door Wiring Harness Loom Cable 1K8971120S
£28.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. A1648204226
Mercedes X164 Third Seat Row Control Unit Power Folding Module FSSG A1648204226
£23.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 9381096
BMW F20 Front Electronic Body Control Module Unit FEM ECU 9381096
£75.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. A1644400040
Mercedes W164 Daytime Running Lights Wiring Harness Cable Front A1644400040
£37.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 2695675
BMW M5 E39 Tyre Pressure Control Module Unit RDC ECU 2695675
£99.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 6904246
BMW M5 E39 Door Window Mirror Wing Control Module Unit ECU 6904246
£18.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. A1648201697
Mercedes W164 Rear View Reversing Camera Control Unit Module A1648201697
£142.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. A1645450303
Mercedes W166 Junction Fuse Block Cover Trim Positive Terminal A1645450303
£18.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 7892976
BMW E46 E39 Z3 Fuel Pump Relay Control Unit 7892976
£56.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 6916406
BMW E39 PDC Parking Module Assistance Distance Control Unit 6916406
£28.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 6920848
BMW E39 Air Module Control Unit ECU 6920848
£23.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 9350336
BMW F06 F12 F13 F80 Mini F56 Radio CD Player Head Unit 9395949
£66.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 6913387
BMW E39 On Board Monitor Dashboard Wide Display Screen 6913387
£113.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 5J0035411C
Skoda Fabia 5J Front Door Bass Loudspeaker Left Right N/O/S 5J0035411C
£18.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 5J0959631A
Skoda Fabia 5J Lateral Acceleration Air Module Adaptor Relay 12V 5J0959631A
£13.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 8576341-12
BMW F20 F30 F31 116d 316d 116HP N47N Engine Control ECU DDE Kit 8576341 Manual
£208.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 8517862-13
BMW F20 F21 X3 F25 20dX N47N 184HP Diesel Engine Unit ECU DDE 8517862 Manual
£37.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 8517874-10
BMW F20 F21 F30 116d 316d N47N 143HP Engine Control ECU DDE Kit 8517874 Manual
£142.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 8513184-4
BMW X3 F25 20dX Diesel N47N 184HP Engine Control Unit ECU DDE 8513184 Automatic
£37.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 4F0035056A
Audi A5 8T Head Unit Radio CD Player Control Unit Module 4F0035056A
£108.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 6C1T-9K499-AHC
Ford Transit Mk7 2.2 TDCi Engine Wiring Harness Cable Loom 6C1T-9K499-AHC
£42.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 8K1907401H
Audi A4 B8 A5 8T 2.7 TDI 190HP CGKA Engine Control ECU 8K1907401H Automatic
£94.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 6977681
BMW E60 E61 E63 X3 E83 F25 Cigarette Lighter Power Socket 12V 6917701
£13.95
Free delivery - Wed, Dec 17
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 - Wed, Dec 17
If paid before 14:00
Part no. 2T1T-14B321-AC
Ford Transit Connect Air Module Control Unit ECU 2T1T-14B321-AC
£13.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. E93-PDC-FRONT
BMW E92 E93 Parking Sensor Wiring Front Bumper PDC Loom Wiring Cabling Set
£28.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. RHD-A2218206289
Mercedes W221 Petrol Display Instrument Cluster Speedo Automatic A2218206289
£237.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 9281830
BMW F20 Central Body Comfort Module Control Unit ECU LEAR 9281830
£66.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 9282119-1
BMW F10 F11 F25 Car Access System Control Module Unit ECU CAS4 CG+ELV 9282119
£47.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. A2218708485
Mercedes W221 Rear View Backup Camera Control Unit Module A2218708485
£32.95
Free delivery - Wed, Dec 17
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 .