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. 3C1T14A120AA
Ford Transit Mk6 Starter Motor Battery Cable Loom Wiring Harness 3C1T-14A120-AA
PLN 42.95
Delivery - Tue, Jan 13
If paid before 14:00

Part no. 8T0959792Q
Audi A5 8T Front Door Control Module Passenger Side 8T0959792Q
PLN 42.95
Delivery - Tue, Jan 13
If paid before 14:00

Part no. 4F0971687A
Audi A6 C6 Door Window Motor Wiring Cable Loom Front Right O/S 4F0971687A
PLN 42.95
Delivery - Tue, Jan 13
If paid before 14:00

Part no. 6989080-OLI
BMW E65 E66 E67 PDC Rear Parking Sensor Ultrasonic Olivin Metallic
PLN 155.95
Free delivery - Tue, Jan 13
If paid before 14:00

Part no. 7120204
BMW E93 Cable Wiring Loom Harness Hydraulic Pump 7120204 7191362
PLN 142.95
Free delivery - Tue, Jan 13
If paid before 14:00

Part no. A6511501879
Mercedes W639 OM651.940 113 CDI 136HP Engine Unit Module ECU A6511501879 Manual
PLN 474.95
Free delivery - Tue, Jan 13
If paid before 14:00

Part no. 4H0881073B
Audi A8L 4H Front Seat Air Pump Control Module Unit 4H0881073B
PLN 94.95
Free delivery - Tue, Jan 13
If paid before 14:00

Part no. A2661503133
Engine Wiring Mercedes W169 W245 M266 Petrol Cable Loom Harness A2661503133
PLN 474.95
Free delivery - Tue, Jan 13
If paid before 14:00

Part no. A2129005200
Seat Module Mercedes W204 W212 Memory Control Unit Driver's Side A2129005200
PLN 189.95
Free delivery - Tue, Jan 13
If paid before 14:00

Part no. 7948144
BMW F40 F44 Seat Occupancy Mat Control Unit Sensor 7948144
PLN 104.95
Free delivery - Tue, Jan 13
If paid before 14:00

Part no. G2412-154530-B
VW Amarok Mk2 Headlight Headlamp Control Unit Module Sensor G2412-154530-B
PLN 142.95
Free delivery - Tue, Jan 13
If paid before 14:00

Part no. AV6Q6M0
Ford Transit Connect Mk2 Glow Plug Wiring Harness Engine AV6Q6M0
PLN 94.95
Free delivery - Tue, Jan 13
If paid before 14:00

Part no. 8574351
BMW X1 E84 16d 18d 18dX Diesel N47N Engine Control Unit ECU DDE 8574351 Manual
PLN 379.95
Free delivery - Tue, Jan 13
If paid before 14:00

Part no. 6974373-1
BMW E81 E84 E87 E88 E90 Ultra Sonic Module Alarm System 9149671
PLN 42.95
Delivery - Tue, Jan 13
If paid before 14:00

Part no. 8693361
BMW F87 M2 Engine Control ECU Kit DME 8693361 N55 370HP Key Dual Clutch
PLN 3,324.95
Free delivery - Tue, Jan 13
If paid before 14:00

Part no. 8571350
BMW 1 5 Series F10 F11 F20 F21 LCI B47 Starter Acoustic Vibration Plug 8571350
PLN 42.95
Delivery - Tue, Jan 13
If paid before 14:00

Part no. A6395450301-2
Mercedes W639 Fuse Box Relay Control Unit Electric Module SAM A6395450301
PLN 712.95
Free delivery - Tue, Jan 13
If paid before 14:00

Part no. A2048702626
Door Module Mercedes W204 Rear Right O/S Control Unit Module A2048702626
PLN 47.95
Delivery - Tue, Jan 13
If paid before 14:00

Part no. A2789060600
Mercedes W166 R172 W205 C207 W212 C216 Engine Starter Motor 12V A2789060600
PLN 237.95
Free delivery - Tue, Jan 13
If paid before 14:00

Part no. 6960220
Airbag Module BMW E65 E66 Airbag A-Pillar Sensor Right O/S Control Unit 6960220
PLN 42.95
Delivery - Tue, Jan 13
If paid before 14:00

Part no. CVS-012-5
CVS-012-5 Expansion Module Electrical Unit Light Control Module
PLN 113.95
Free delivery - Tue, Jan 13
If paid before 14:00

Part no. 7515197-1
Mini Cooper One R50 W10 Battery Cable Wiring Plus Pole 7515197
PLN 42.95
Delivery - Tue, Jan 13
If paid before 14:00

Part no. A2048701826
Mercedes S204 Door Module Front Left N/S Control Unit ECU A2048701826
PLN 94.95
Free delivery - Tue, Jan 13
If paid before 14:00

Part no. A9078209600
Mercedes W907 L2H2 Electric Radio Player Head Unit A9078209600
PLN 474.95
Free delivery - Tue, Jan 13
If paid before 14:00

Part no. 8T0959792K
Audi A5 S5 8T Door Module Control Unit Front Passenger Side 8T0959792K
PLN 42.95
Delivery - Tue, Jan 13
If paid before 14:00

Part no. 9876796
Telematics Module Mini F55 LCI 4g Bluetooth Control Module Unit Ecu 9876796
PLN 284.95
Free delivery - Tue, Jan 13
If paid before 14:00

Part no. 7L0959655A
VW Volkswagen Touareg 7L Air Module Control Unit Crash Impact Sensor 7L0959655A
PLN 75.95
Free delivery - Tue, Jan 13
If paid before 14:00

Part no. 9371789
BMW F20 F21 F30 F31 Bluetooth Teleservices GPS Telematics Module 9371789
PLN 42.95
Delivery - Tue, Jan 13
If paid before 14:00

Part no. 3415607
BMW X3 E83 LCI Petrol N52N Cable Alternator Starter Base B+ 3415607
PLN 104.95
Free delivery - Tue, Jan 13
If paid before 14:00

Part no. 6851242
ICM Module BMW F01 F02 Integrated Chassis Management QL ES Control Unit 6851242
PLN 123.95
Free delivery - Tue, Jan 13
If paid before 14:00

Part no. 9187541
BMW Z4 E89 ECU Body Control Module H3 Junction Box 9187541
PLN 142.95
Free delivery - Tue, Jan 13
If paid before 14:00

Part no. 03L906018KD-1
Audi A4 B8 All Road 2.0 TDI CGLC 177HP Quattro Engine ECU Kit 03L906018KD Manual
PLN 949.95
Free delivery - Tue, Jan 13
If paid before 14:00

Part no. A6511590246
Wiring Cable Cover Mercedes W204 W212 W906 OM651 Engine Duct Bracket A6511590246
PLN 42.95
Delivery - Tue, Jan 13
If paid before 14:00

Part no. 9381020
BMW F33 F83 M4 Convertible Folding Top Roof ECU Module Control Unit CTM 9381020
PLN 617.95
Free delivery - Tue, Jan 13
If paid before 14:00

Part no. 2T1T-15K600-BD
Ford Transit Connect Central Lock Control Unit Alarm Module ECU 2T1T-15K600-BD
PLN 142.95
Free delivery - Tue, Jan 13
If paid before 14:00

Part no. A2710106644-2
Mercedes R171 SLK200 M271.944 163HP Engine Control ECU Kit A2710106644 Key Lock
PLN 1,044.95
Free delivery - Tue, Jan 13
If paid before 14:00

Part no. 80A915181A
Audi Q5 8R Battery Earth Negative Terminal Cable Lead 80A915181A
PLN 61.95
Free delivery - Tue, Jan 13
If paid before 14:00

Part no. 9194824
BMW Z4 E89 Convertible Roadster Air Module ECU Control Unit 9194824
PLN 332.95
Free delivery - Tue, Jan 13
If paid before 14:00

Part no. 6922262
BMW 7 Series E65 E66 E67 Control Unit Door Front Passenger Side 6922262
PLN 37.95
Delivery - Tue, Jan 13
If paid before 14:00

Part no. 8574352
BMW X1 E84 20d 20dX 184HP N47N Engine Control Unit ECU DDE 8574352 Automatic
PLN 1,709.95
Free delivery - Tue, Jan 13
If paid before 14:00

Part no. 06H911021A
Audi A5 8T 2.0 TFSI Petrol Engine Starter Motor Actuator 06H911021A
PLN 75.95
Free delivery - Tue, Jan 13
If paid before 14:00

Part no. 5C0937819R
Volkswagen Beetle 5C Fuse Box Relay Module Unit 5C0937819R
PLN 237.95
Free delivery - Tue, Jan 13
If paid before 14:00

Part no. A6519007500-1
Mercedes W204 C220CDI BlueEFFICIENCY OM651.911 Engine ECU A6519007500 Automatic
PLN 237.95
Free delivery - Tue, Jan 13
If paid before 14:00

Part no. 9244426
BMW X5 E70 Rear Bumper PDC Cables Wiring Loom Set 9219647
PLN 218.95
Free delivery - Tue, Jan 13
If paid before 14:00

Part no. 8512499-8
BMW E87 E90 LCI N47 118d 318d 143HP Diesel ECU Kit DDE 8512499 CAS3 + Key Manual
PLN 949.95
Free delivery - Tue, Jan 13
If paid before 14:00

Part no. 6834091
BMW F87 F80 F82 Audio Amplifier Harman Becker Active Sound Design System 6834091
PLN 332.95
Free delivery - Tue, Jan 13
If paid before 14:00

Part no. A1715405045-1
Mercedes SLK R171 Central Gateway Module ECU Control Unit A1715405045
PLN 61.95
Free delivery - Tue, Jan 13
If paid before 14:00

Part no. 6887753
BMW F20 F21 F22 F30 F31 F32 ICM Control Unit Module ECU 6868599
PLN 284.95
Free delivery - Tue, Jan 13
If paid before 14:00

Part no. A0009062822
Alternator Generator Mercedes W207 W212 W906 Engine Diesel 200A 14V LRA03818
PLN 379.95
Free delivery - Tue, Jan 13
If paid before 14:00

Part no. XS7U-11000-C4A
Ford Focus Mondeo Escort 1.8 Petrol Engine Motor Starter XS7U11000C4A
PLN 61.95
Free delivery - Tue, Jan 13
If paid before 14:00

Part no. 5Q0959651
Audi A3 8V Front Impact Sensor Crash Detection Module Unit 5Q0959651
PLN 94.95
Free delivery - Tue, Jan 13
If paid before 14:00

Part no. 5QS959655A
Audi A3 S3 8Y Air Module Crash Impact Sensor Unit Control ECU 5QS959655A
PLN 1,044.95
Free delivery - Tue, Jan 13
If paid before 14:00

Part no. 8642682
BMW 3 Series F30 LCI 330e Negative Earth Cable High Voltage Battery 8642682
PLN 142.95
Free delivery - Tue, Jan 13
If paid before 14:00

Part no. 9297787
BMW F10 F20 F30 Battery For Telematics Control Unit Module 9297787
PLN 61.95
Free delivery - Tue, Jan 13
If paid before 14:00

Part no. 8W1907064BC
Audi A4 B9 Body Control Module BCM Comfort Control Unit Power Supply 8W1907064BC
PLN 474.95
Free delivery - Tue, Jan 13
If paid before 14:00

Part no. 8685853
BMW F40 X1 F48 Mini F55 F56 F60 Engine Injector Wiring Loom Harness 8685853
PLN 284.95
Free delivery - Tue, Jan 13
If paid before 14:00

Part no. A2518204426
Mercedes V251 W164 Front Lamp Headlight Control Module Unit HELLA A2518204426
PLN 42.95
Delivery - Tue, Jan 13
If paid before 14:00

Part no. 6466R1001
Smart ForTwo C453 Front Air Flap Sensor Module Control Unit 6466R1001
PLN 89.95
Free delivery - Tue, Jan 13
If paid before 14:00

Part no. 9329339
BMW F32 Telematics Telephone Control Unit Module Bluetooth TCB ECE 9329339
PLN 75.95
Free delivery - Tue, Jan 13
If paid before 14:00

Part no. A1725400035
Electrical Cable Mercedes R172 Transmission To Body Wiring Harness A1725400035
PLN 47.95
Delivery - Tue, Jan 13
If paid before 14:00

Part no. 1371248
Ford Transit Mk7 Minus Negative Battery Mass Cable Wiring Loom 6C1T-14303-DA
PLN 94.95
Free delivery - Tue, Jan 13
If paid before 14:00

Part no. 9824925
Mini F55 F56 F60 LCI Navigation Touch Screen 8.8" Display Nav Head Unit 9824925
PLN 2,849.95
Free delivery - Tue, Jan 13
If paid before 14:00

Part no. 0AM911022C
Volkswagen Golf Mk8 Engine Starter Motor Assembly Unit 0AM911022C
PLN 94.95
Free delivery - Tue, Jan 13
If paid before 14:00

Part no. 4H0911075B
Audi A8L 4H Power Positive Distribution Junction Jumper Box Housing 4H0911075B
PLN 94.95
Free delivery - Tue, Jan 13
If paid before 14:00

Part no. 9236519
BMW 1 Series E81 E87 LCI Front PDC Parking Distance Control Loom Wiring 9236519
PLN 189.95
Free delivery - Tue, Jan 13
If paid before 14:00

Part no. 9231283-AZB
BMW E70 F10 F11 PDC Parking Sensor Ultrasonic Sensor Azurit Black - S34 9231283
PLN 42.95
Delivery - Tue, Jan 13
If paid before 14:00

Part no. 8P3907357B
Audi S3 8P Xenon Headlight Range Control Module Unit ECU 8P3907357B
PLN 42.95
Delivery - Tue, Jan 13
If paid before 14:00

Part no. 8510592-1
BMW E81 E87 E90 LCI 118d 318d N47 ECU Kit DDE CAS3 Key 8510592
PLN 284.95
Free delivery - Tue, Jan 13
If paid before 14:00

Part no. A1179006000
Camera Module Mercedes W156 W176 Reversing Rear View Control Unit A1179006000
PLN 237.95
Free delivery - Tue, Jan 13
If paid before 14:00

Part no. 8T8035225C
Audi A5 8T Audio Radio Aerial Amplifier Control Unit 8T8035225C
PLN 42.95
Delivery - Tue, Jan 13
If paid before 14:00

Part no. A2075403434
PDC Wiring Mercedes W204 W207 Parktronic Parking Sensor Cable Rear A2075403434
PLN 75.95
Free delivery - Tue, Jan 13
If paid before 14:00

Part no. A1685453532-2
Mercedes W168 A140 ESP + HBA Electronic Stability Control Module A1685453532
PLN 61.95
Free delivery - Tue, Jan 13
If paid before 14:00

Part no. A1725400433
Electric Wire Mercedes SLK R172 M271 Alternator Prefuse Box Wiring A1725400433
PLN 93.95
Free delivery - Tue, Jan 13
If paid before 14:00

Part no. 9266383
Display Screen BMW F12 F13 Central Information Monitor 10" Multimedia 9266383
PLN 607.95
Free delivery - Tue, Jan 13
If paid before 14:00

Part no. 9240236
BMW F01 LCI F10 F12 High Voltage Battery Charging Unit Module BCU 150 9240236
PLN 284.95
Free delivery - Tue, Jan 13
If paid before 14:00

Part no. MB3T-14C574-PFB
Volkswagen Amarok NF Ford Ranger T9 Body Cable Wire Harness MB3T-14C574-PFB
PLN 189.95
Free delivery - Tue, Jan 13
If paid before 14:00

Part no. A0055422618
Rate Sensor Mercedes W212 ESP Yaw Rotation Control Unit Module A0055422618
PLN 46.95
Delivery - Tue, Jan 13
If paid before 14:00

Part no. 8580389
BMW F40 F45 X1 F48 Mini F55 F56 F57 F60 Diesel Engine Starter Motor 8580389
PLN 237.95
Free delivery - Tue, Jan 13
If paid before 14:00

Part no. 9366413
FEM Module BMW F20 F21 F22 F30 F32 ECU Control Unit Fuse Box 9366413
PLN 379.95
Free delivery - Tue, Jan 13
If paid before 14:00

Part no. 8721882
BMW F20 F21 F22 F30 F31 LCI Head Unit Media DAB Navigation Professional 8721882
PLN 1,899.95
Free delivery - Tue, Jan 13
If paid before 14:00

Part no. 9247081
BMW X1 E84 Wiring Loom Harness Passenger Side 9247081
PLN 94.95
Free delivery - Tue, Jan 13
If paid before 14:00

Part no. 3457490
Mini Cooper Paceman R61 High SPEG Fuse Distribution Box H4 3457490
PLN 712.95
Free delivery - Tue, Jan 13
If paid before 14:00

Part no. A2513200158-1
Valve Block Mercedes W251 W906 Air Suspension Control Unit Module A2513200158
PLN 142.95
Free delivery - Tue, Jan 13
If paid before 14:00

Part no. A1648205389
Mercedes ML W164 Aerial Antenna Amplifier Unit Module A1648205389
PLN 94.95
Free delivery - Tue, Jan 13
If paid before 14:00

Part no. 7807802-1
BMW X5 E70 LCI X6 E71 N57 N57S Cable Alternator Starter Base B Wiring 7807802
PLN 85.95
Free delivery - Tue, Jan 13
If paid before 14:00

Part no. 9250456
BMW F12 Footwell Light Module Control Unit ECU FRM3 9250456
PLN 569.95
Free delivery - Tue, Jan 13
If paid before 14:00

Part no. 3Q0959655AQ
Skoda Octavia 5E Air Module Control Unit ECU Module Sensor 3Q0959655AQ
PLN 360.95
Free delivery - Tue, Jan 13
If paid before 14:00

Part no. 7605478
BMW 1 3 Z4 Series F20 F30 E89 Petrol Alternator 170A 7605478
PLN 123.95
Free delivery - Tue, Jan 13
If paid before 14:00

Part no. A2709000900-8
Mercedes W246 B180 270.910 122HP ECU Wiring Loom Harness Cable Plug A2709000900
PLN 94.95
Free delivery - Tue, Jan 13
If paid before 14:00

Part no. 3456365
Roof Security Alarm Mini R55 R56 One Ultra Sonic Module 3456365
PLN 94.95
Free delivery - Tue, Jan 13
If paid before 14:00

Part no. 6860936
BMW i3 I01 F45 F46 Control Unit SAS Module ECU 6860936
PLN 1,139.95
Free delivery - Tue, Jan 13
If paid before 14:00

Part no. 9163173
BMW E60 E61 LCi Right Left Rear Door Wiring Loom N/O/S 9120797
PLN 42.95
Delivery - Tue, Jan 13
If paid before 14:00

Part no. 8W2035043E
Audi A4 B9 MMI Multimedia Sat Nav Navigation Control Head Unit 8W2035043E
PLN 1,899.95
Free delivery - Tue, Jan 13
If paid before 14:00

Part no. 5M5T-14B192-EA-1
Ford Transit Custom Relay 4-Pin Black 12V 40A FOMOCO Set X2 5M5T-14B192-EA
PLN 61.95
Free delivery - Tue, Jan 13
If paid before 14:00

Part no. 7220891
BMW E91 LCI Control Unit Module Support Plate Bracket Carrier Holder 7220891
PLN 94.95
Free delivery - Tue, Jan 13
If paid before 14:00

Part no. 8K0907551
Audi A4 S4 B8 3.0 TFSI 333HP CAKA Quattro Engine Control Unit ECU 8K0907551
PLN 759.95
Free delivery - Tue, Jan 13
If paid before 14:00

Part no. A1635401230
Mercedes W163 Negative Battery Minus Terminal Lead Cable A1635401230
PLN 94.95
Free delivery - Tue, Jan 13
If paid before 14:00

Part no. 9474776
KaFAS Camera BMW F10 F20 LCI F30 Mini F55 F56 Control Unit ECU Module 9474776
PLN 189.95
Free delivery - Tue, Jan 13
If paid before 14:00

Part no. 95B919294C
Porsche Macan 95B PDC Parking Sensor Control Module Unit 95B919294C
PLN 702.95
Free delivery - Tue, Jan 13
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 .