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. 9229007
BMW F10 Antenna Amplifier Diversity 868 MHZ 9229007
PLN 94.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. A2078200075
Antenna Mercedes W212 Keyless Go Comfort Access Antenna Module Unit A2078200075
PLN 47.95
Delivery - Wed, Jan 14
If paid before 14:00
Part no. 4F5035225AJ
Audi A6 C6 Aerial Antenna Amplifier Right O/S FM Booster Unit 4F5035225AJ
PLN 42.95
Delivery - Wed, Jan 14
If paid before 14:00
Part no. 4F0971765
Audi A6 C6 Wing Mirror Adjustment Switch Wiring Loom Cable 4F0971765
PLN 42.95
Delivery - Wed, Jan 14
If paid before 14:00
Part no. A6229000500
Mercedes W447 OM622.951 Engine Control Unit Module ECU Kit A6229000500 Manual
PLN 949.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 7786372
BMW X5 E53 3.0d M57 Earth Cable Battery Cable 7786372 12427786372
PLN 56.95
Delivery - Wed, Jan 14
If paid before 14:00
Part no. 6R0971226A
Volkswagen VW Polo 6R Negative Battery Terminal Cable Wiring 6R0971226A
PLN 42.95
Delivery - Wed, Jan 14
If paid before 14:00
Part no. A6519007500-13
Mercedes W212 E250 CDI 651.924 204HP Engine Unit ECU Kit A6519007500 Key Lock
PLN 1,139.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 1438941
BMW X5 E53 Ground Cable Alternator Petrol 1438941
PLN 42.95
Delivery - Wed, Jan 14
If paid before 14:00
Part no. A2055455100
Mercedes W205 W213 C238 Power Distribution Unit Busbar Connector A2055455100
PLN 142.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. A2139009406
Mercedes W213 Display Screen Information Navigation Dashboard A2139009406
PLN 332.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 5WA962133F
Audi Volkswagen Seat Keyless Entry Module Aerial Antenna 5WA962133F
PLN 94.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. A1715409606
Mercedes R171 Wiring Cable Harness Front Passenger Door Wiring Loom A1715409606
PLN 75.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. A6401500434-1
Mercedes W169 A160 CDI OM640.942 82HP Engine Unit ECU Kit A6401500434 Automatic
PLN 949.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 1K0915181H
Audi A3 8P Negative Cable Battery Terminal Wiring Loom 1K0915181H
PLN 61.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 8718207
BMW F20 F21 F22 F30 F31 LCI Head Unit Sat Nav Media Navigation 8718207
PLN 1,424.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. A2139000124
Mercedes W213 W222 C257 Amplifier Module Audio Burmester A2139000124
PLN 1,899.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 03C903024F
Alternator Audi A3 8P VW Passat B7 Engine Generator 1.4 TSI 03C903024F
PLN 237.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 9253477
BMW E92 ECU Body Control Module Junction Box L1 PL2RR JBBFE IIIR 9253477
PLN 189.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 8K0959655L
Audi A4 B8 Air Module Control Unit ECU Crash Control 8K0959655L
PLN 75.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. A4479009808
Mercedes Vito W447 Fuse Box Relay Control Unit Electric Module SAM 4479009808
PLN 664.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. A0009821923
Mercedes W205 Interior Trunk Fuse Box Automotive Pink Relay A0009821923 Red
PLN 47.95
Delivery - Wed, Jan 14
If paid before 14:00
Part no. 8W0419065D
Audi A4 B9 A5 F5 Power Steering Column Control Unit Module 8W0419065D
PLN 142.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 9229989
BMW F07 GT Cable Loom Door Rear Left Right N/O/S Wiring Harness 9210135
PLN 65.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 6936801
BMW Z4 E85 Roadster Cabrio Convertible Folding Top Roof Module
PLN 142.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 6942100
BMW E60 Air Module Control Unit Gateway Sensor B Pillar Right O/S 6942100
PLN 42.95
Delivery - Wed, Jan 14
If paid before 14:00
Part no. A2535403718
Mercedes X253 Rear Bumper Electrical Wiring Harness A2535403718
PLN 284.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 8P0907404-1
Audi RS3 8P 2.5 TFSI CEPA Quattro 340HP Engine Unit ECU Kit 8P0907404 Automatic
PLN 4,749.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 4L0971767
Audi Q7 4L Washer Bottle Reservoir Wiring Loom Harness 4L0971767
PLN 42.95
Delivery - Wed, Jan 14
If paid before 14:00
Part no. 8512499-4
BMW E87 E90 LCI N47 118d 318d Diesel ECU Kit DDE 8512499 CAS3 + Keys Automatic
PLN 949.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 9266384
BMW 5 Series F10 F11 LCI Boardmonitor Central Information Display 7" 9266384
PLN 170.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. A2225403150
Fuse Box Mercedes W205 Front Passenger Side Footwell Fuse Box A2225403150
PLN 42.95
Delivery - Wed, Jan 14
If paid before 14:00
Part no. A1668201089
Mercedes W176 Radio Aerial Antenna Amplifier Booster Unit Module A1668201089
PLN 42.95
Delivery - Wed, Jan 14
If paid before 14:00
Part no. A0045450405
Mercedes W169 W203 W639 W906 Relay 5-Pins Green Control Unit 12V A0045450405
PLN 42.95
Delivery - Wed, Jan 14
If paid before 14:00
Part no. 8W0959595E
Audi A4 B9 Rear Door Control Module ECU Left Right N/O/S 8W0959595E
PLN 94.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 7541084
Mini Cooper Cabrio R52 Battery Cable Plus Pole 7541084
PLN 61.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. A2048709426
Mercedes W204 Air Module Control Unit SRS Sensor ECU A2048709426
PLN 42.95
Delivery - Wed, Jan 14
If paid before 14:00
Part no. 8T0959795F
Audi A5 8F Window Lifter Module Control Unit Rear Left Right N/O/S 8T0959795F
PLN 42.95
Delivery - Wed, Jan 14
If paid before 14:00
Part no. A6401500734
Mercedes W169 W245 A200 B200 CDI OM640.941 140HP Engine Module ECU A6401500734
PLN 474.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 7222633-1
BMW E90 E91 LCI Flat Cable Wiring Wire CAS Start Stop ECU Loom 7222633
PLN 42.95
Delivery - Wed, Jan 14
If paid before 14:00
Part no. 7581848
BMW E81 E87 LCI E90 116i 316i N45N 116HP Engine ECU Unit DME 7581848 Manual
PLN 759.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 5Q4959593K
Seat Ateca Door Module Control Unit Front Driver's Side Door 5Q4959593K
PLN 61.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 06K907425B-19
Skoda Octavia RS 5E 2.0TSI CHHA 220HP Engine Unit ECU Kit 06K907425B Automatic
PLN 1,139.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 8606306
BMW F10 F11 F30 184 HP Petrol N20 Engine Control Unit ECU DME 8606306 Manual
PLN 1,662.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 8510591-7
BMW X1 E84 2.0d N47 177HP sDrive Engine Control Unit ECU DDE 8510591 Manual
PLN 807.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 06E911021F
Audi A5 8T A6 C7 Engine Starter Motor 3.0 TFSI Petrol 06E911021F
PLN 123.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 6822602
BMW F20 F21 F30 F31 Head Unit Basic Media Navigation Headunit 6822602
PLN 569.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. A2465404300
Mercedes W176 Door Harness Loom Cable Wiring Rear Right A2465404300
PLN 61.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. A2059051106
Mercedes W205 Antenna Aerial Amplifier Module Receiver AMP Unit A2059051106
PLN 94.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 3Q0959651
Seat Leon Mk3 5F Deployment Crash Impact Sensor Front Centre 3Q0959651
PLN 85.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. MB3G-12A650-ARB
VW Amarok Mk2 NF 3.0 TDI DXWB 241HP Engine Control ECU MB3G-12A650-ARB Automatic
PLN 1,994.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 8578945-3
BMW F20 118d F30 318d N47N 143HP ECU Engine Contol Unit DDE 8578945 Manual
PLN 569.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 8634124
BMW F40 F45 X1 F48 Mini F55 F56 F60 Alternator Generator Denso 120A 8634124
PLN 189.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 9276036
BMW 5 Series F11 Touring Antenna Aeral Amplifier Diversity 868 MHZ 9276036
PLN 142.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. A1729003106
Mercedes SLC R172 Parktronic Parking Sensor Module Unit ECU A1729003106
PLN 189.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 6C1T14A067E
Ford Transit Mk7 Fuse Box Battery Terminal Unit Module 6C1T-14A067-E
PLN 75.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 9267085
Antenna Amplifier BMW F01 F10 F13 Aeral Diversity 868 MHZ Control Unit 9267085
PLN 75.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 390203254
Seat Adjustment Motor Mercedes R171 W221 Front Seat Motor Actuator 0390203254
PLN 56.95
Delivery - Wed, Jan 14
If paid before 14:00
Part no. 7391042
BMW F10 F30 X1 F48 Mini F54 Rear Tailgate Smart Opener Top Wire Sensor 7391042
PLN 142.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 3452285
BMW X3 Series E83 Boardmonitor Central Information Display Screen 6,5"
PLN 1,234.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 9311113
Mini R55 R56 R57 LCI R60 R61 Navigation Head Unit CHAMP 2 Sat Nav DAB 9311113
PLN 712.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 3D0919473
Volkswagen Touareg 7L PDC Parking Aid System Display Panel Unit 3D0919473
PLN 94.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 9277202
Wiring Cable BMW F06 F12 F13 Electric Parking Hand Brake Handbrake Set 9277202
PLN 123.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 4H0907063GG
Audi A6 C7 A7 4G Onboard Supply BCM Body Control Module Unit ECU 4H0907063GG
PLN 807.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 6924389
BMW Z4 Series E85 E86 Battery Positive Cable Fuse Box B Base 6924389
PLN 93.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. A2219050018
Mercedes-Benz S-Class W221 Headlining Alarm Sensor Module Cover Trim A2219050018
PLN 61.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 8K0907401-1
Audi A5 8T 3.0TDI CAPA Quattro 240HP Engine ECU Kit Ignition 8K0907401 + Key
PLN 949.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 6854856
BMW F10 F11 F12 EMF Module Parking Brake Unit Electric Control 6854856
PLN 70.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 9383681-1
Mini F55 Fuse Box Front Body Control Module ECU BCM Unit 13275881
PLN 427.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. A2049005410
Mercedes W204 Sat Nav Radio CD Player Radio Head Unit A2049005410
PLN 189.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 8W0907159D
Audi RS4 B9 A5 F5 Impact Sound Module Control Unit 8W0907159D
PLN 180.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 3456478
Mini R58 Door Module Harness Wiring Loom Cable Set Driver's Side 3456478
PLN 94.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. A1669000318
Mercedes-Benz A B Class W176 W246 Front Left N/S Door Control Unit Module ECU
PLN 123.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. A2115402105
Battery Cable Mercedes W211 Starter Alternator Wiring Harness A2115402105
PLN 47.95
Delivery - Wed, Jan 14
If paid before 14:00
Part no. 95B971030FP
Porsche Macan 95B Door Wiring Harness Loom Cable 95B971030FP
PLN 284.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 6916058
Mini Cooper R50 R52 R53 Support Bracket Navigation Computer 6916058
PLN 42.95
Delivery - Wed, Jan 14
If paid before 14:00
Part no. A2319014702
Mercedes R231 Air Module Control Unit ECU SRS Module A2319014702
PLN 949.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. A2769004901
Mercedes A238 Convertible E450 M276.823 Engine ECU Unit A2769004901 Automatic
PLN 1,899.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 7543297
BMW 5 6 Series E60 E61 E63 E64 N52 Cable Alternator Starter Base B
PLN 42.95
Delivery - Wed, Jan 14
If paid before 14:00
Part no. 4H0919275-SHB
VW Golf Mk6 Audi TT 8J Parking Distance Control Sensor Shark Blue Metallic - A5Q
PLN 42.95
Delivery - Wed, Jan 14
If paid before 14:00
Part no. 8E0035111D
Audi TT 8J Radio Head Unit Navi CD DVD Player Changer 8E0035111D
PLN 42.95
Delivery - Wed, Jan 14
If paid before 14:00
Part no. 7619136
BMW E84 F25 F26 N20 Engine Sensor Module Wiring Cable Loom Harness 7619136
PLN 237.95
Free delivery - Wed, Jan 14
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
PLN 2,849.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. A0018204535
Microphone Mercedes W639 W906 Hands-Free Interior Mic Unit A0018204535
PLN 161.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. A2218705093
Mercedes W221 Door Control Module Unit ECU Rear Left Right N/O/S A2218705093
PLN 189.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. A6269000000
Mercedes W205 C 200 d 626951 626.951 136HP Engine Unit ECU A6269000000 Automatic
PLN 617.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 9297897
BMX X4 F26 X6 F16 Cental Woofer Speaker Audio Unit Left Right N/O/S 9297897
PLN 113.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. A2079052800
Mercedes-Benz E-Class W207 Cabrio A207 Anti Theft Alarm Module Control Unit ECU
PLN 94.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 6C0915181C
VW Volkswagen Polo 6R Negative Minus Earth Cable HV Battery Harness 6C0915181C
PLN 123.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. A2045458601
Mercedes W204 Fuse Box Rear Relay Control Unit Module SAM A2045458601
PLN 474.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 6821135
BMW F20 F21 F22 F30 F31 Head Unit Media DAB Navigation Business Headunit 6821135
PLN 569.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. A2189006806
Mercedes W207 Harman Control Unit Module Amplifier Premium Sound A2189006806
PLN 2,849.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 02Z911023H
Volkswagen VW Golf V 1.9 TDI Diesel Engine Starter Motor 02Z911023H
PLN 85.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 6977982-3
Mini Cooper R50 R53 R56 R57 R60 Relay No Contact Taubenblau Blue Set 4X 6977982
PLN 61.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. A1698207226
Door Module Mercedes W169 W245 Front Right O/S Control Unit A1698207226
PLN 42.95
Delivery - Wed, Jan 14
If paid before 14:00
Part no. 7610009-5
Mini Cooper S R55 R56 N14 1.6 174HP Engine Control ECU Kit DME 7610009 Manual
PLN 1,899.95
Free delivery - Wed, Jan 14
If paid before 14:00
Part no. 6944875
BMW E36 Z4 E85 Z3 Module Radar Burglar Alarm Sensor 6944875
PLN 42.95
Delivery - Wed, Jan 14
If paid before 14:00
Part no. 1K0959433BL
VW Golf MK5 Body Control Comfort Module BCM Convenience Unit ECU 1K0959433BL
PLN 42.95
Delivery - Wed, Jan 14
If paid before 14:00
Part no. 8T0971035A
Audi A5 8T Coupe Front Door Wiring Loom Harness Driver's Side 8T0971035A
PLN 61.95
Free delivery - Wed, Jan 14
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 .