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. 7589971-10
BMW Mini One R56 N12 1.4 N12B14A 95HP Petrol ECU Kit DME 7589971 + CAS3 + 2 Keys
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Audi A4 B9 Communication Telematics Control Module Unit ECU 4KE035282H
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BMW E60 E90 E91 N52 325i 525i 218HP ECU Kit DME 7567178 CAS3 + Key Automatic
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Audi A5 F5 45 TFSI DKNA Body Control Module BCM Unit ECU 8W0907063DG
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Audi A4 B8 A5 8T Parking Distance Control Module Unit ECU 8K0919475H
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BMW Z4 E89 Professional Navigation System Computer CIC 9218337
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Mini Cooper D F55 F56 B37 116HP Diesel ECU Engine Unit DDE 8587952 Manual
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Audi S3 8P 2.0 TFSI BHZ 265HP Engine Control Module ECU 8P0907115H Manual
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BMW X5 F15 Wiring Front Right O/S Door Harness Loom 9365780
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Audi A4 B9 2.0 TDI DTNA 163HP Engine Control Unit ECU 05L907309 Automatic
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Mercedes C253 Body Control Module Temic A2539005906
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Glow Plug Relay Mercedes W213 C238 Diesel OM654 Preglow Module A6549001300
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BMW F40 F45 X1 F48 Mini F55 F56 F60 Alternator Generator Denso 120A 8634124
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BMW E90 E90N E91 E91N LCI Wiring Loom Set PDC Rear Set Complete
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Skoda Octavia II Crash Thrust Air Module Sensor 1K0955557B
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Audi A6 C6 Power Supply Module Comfort Control Unit ECU 7591534
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BMW 3 E36 316i M43 Engine Automatic Gearbox Control Unit EGS 1423079 1423000
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Mercedes-Benz M-Class ML W163 Pressure Regulation Valve Fuel A6110780149
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Seat Module BMW F10 F11 Front Left N/S Control Unit SM MF/M - HL 9248565
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Mercedes W166 Hatch Tailgate Central Module Locking Control ECU A1669003708
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BMW 5 6 Series E60 E61 E63 Driver Side Door Airbag Control Unit Module 6945144
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Iveco Eurocargo F4AE0481 Engine Module ECU 4898111
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Ford Transit Mk7 Diesel Engine Alternator Generator Unit 6C1T-10300-CC
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VW Golf 5 Steering Angle Steering Wheel Column Control Module 1K0953549CA
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BMW E39 E46 E81 E87 E90 Hands-Free Electronics Charging Module MULF 9133329
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Part no. 7803373-10
BMW E87 E90 E60 120d 320d 520d M47N2 163HP Engine Unit ECU DDE 7803373 Manual
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BMW E60 E90 N52 325i 525i ECU Kit Control Unit DME 7577968 CAS2 Key Automatic
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Part no. 420295
Mini R55 R56 R57 Halogen Headlights Control Unit Module ECE 0420295
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Oil Pump Control Audi Q7 4L Volkswagen Touareg 7P Module Unit ECU 7P0927601
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Audi A3 8P Air Module SRS System Control Sensor ECU Unit 8P7959655
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Audi A5 8T Gateway Control Module Unit ECU 8T0907468F
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BMW 1 2 Series 1 F20 F21 F22 Central Information Display Screen 6,5" 9237539
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BMW F06 Electric Wiring Cable Loom Harness 9269983
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Mercedes W639 W906 Battery Terminal Fuse Box Control Unit Module A6385454440
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Suspension Module BMW F82 Rear Axle Dynamic Suspension Control Module 6895714
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Mercedes W205 C 220d BlueEFFICIENCY 651.921 170HP Engine ECU Unit A6519005203
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Volkswagen Golf Mk5 V Body Control Comfort Unit Module 1K0959433AJ
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BMW 3 Series E91 ECU Body Control Module H4 Electronic Box 61359176886 9176886
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Mercedes W639 3.0CDI OM642.990 Engine Control Unit ECU Kit A6421501500 Key Lock
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BMW 3 Series E87 LCI Footwell Light Module ECU Control Unit LED XE FRM 9204536
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Radio Player BMW F20 F21 F30 F31 CD DAB Bluetooth Head Unit Audio Player 9326010
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Mini One F56 B38 102HP Petrol Engine ECU Control Unit DDE 8642704 Manual
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BMW E81 E87 E90 E91 E92 6-disc CD Changer 9133083
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Mercedes-Benz E-Class A207 W207 Convertible Air Module System Control Unit
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Mercedes-Benz C CLK W202 W208 Left N/S Parking System Warning Display Screen
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Audi Q2 GA 35 TFSI DXDB Petrol Starter Motor Manual 02M911022F
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BMW X5 E53 E81 E87 E90 LCI Battery Mounting Bracket Bolt Holder
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Audi A4 B9 2.0 TDI DETA Quattro Engine Control Unit ECU 04L907309L Automatic
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Airbag Module BMW F45 X1 F48 Mini F54 F55 F56 Air Bag Control Unit ECU 9495909
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Mercedes W209 Radio Head Unit Media Player Navigation Screen A2098205489
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Mercedes-Benz A B Class W169 W245 Sam Control Module Fuse Box Unit A1695454332
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Mini Cooper Countryman R60 Fuse Distribution Box Module 9812535
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Mini Countryman R60 Footwell Light Control Module LOW ECU PL3 FRM III 3456986
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Body Gateway Module BMW E60 E61 LCI E63 E64 ECU Control Unit 9157156
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Mercedes W906 OM646.985 109HP Engine Unit Module ECU Kit Key A6461506378
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BMW X3 E83 Z4 E85 E86 Radio Sat Nav Control Unit CD Player Control Unit 9146714
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Mercedes ML W164 Front Right Control Unit Module Door A1648203885
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Mercedes W245 Front Bumper PDC Parking Distance Sensor Comet Grey - 748
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Mercedes-Benz C CLK Class W203 C209 ESP Yaw Rotation Rate Sensor A0045420418
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Audi Volkswagen Seat Skoda Engine Alternator Generator 2.0 TDI CAGA 06F903023P
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Mercedes-Benz A W168 CDI Battery Terminal Positive Cable Wiring A1685401130
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BMW E90 Radio CD Player Professional 6975013
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BMW 3 Series E92 ECU Body Control Module Junction Box L1 PL2 JBBFE II 9176877
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Pioneer SPH-DA120 Head Unit Apple Carplay Android Auto Bluetooth Media Player
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BMW E81 NSW ECU Light Module Footwell Module PL2 FRM II 6135 9197159
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BMW 3 Series E90 E92 M3 Throttle Body Position Hall Sensor Unit 7841706 7841704
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Mercedes SLK R171 Rear Bumper PDC Wiring Parking Sensor Loom Harness A1715400506
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Part no. 3457050-1
Mini Cooper R55 R56 R57 LCI Radio Boost CD USB Bluetooth Head Unit 3457050
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Part no. A6511501488
Mercedes Vito W639 OM651.940 Diesel Engine Wiring Cable Loom Harness A6511501488
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BMW 3 5 Series E39 E46 Touring Ultrasonic Roof Alarm Sensor Module ECU 6938049
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Part no. 9374507-1
BMW F23 REM Rear Electronic Module Fuse Box Control Unit V2 9374507
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Part no. 028903028C
Volkswagen Golf Mk4 Alternator Generator BOSCH 14V 70A 028903028C
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Mercedes Sprinter W906 OM651 Engine Wiring Harness Cable Loom A9065402727
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Audi Q7 4L Headlight Module Ballast Control Unit 89393773
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BMW Z4 E89 Roadster HiFi Speaker Sound System Amplifier AMP Unit 9118032
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AUDI Q7 4L Quattro 3.0 TDI BUS Diagnostic Gateway Interface Module 4F0907468R
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BMW E93 Footwell Light Control Module FRM3R PL2 Lear 9249081
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Part no. 6860962
BMW X3 F25 ECU ICM Control Unit Air Module Bag Safety 6860962 0265020494
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Blind Spot Sensor BMW F40 G20 G21 G30 G31 Radar Range Module SRR-01 Rear 7915643
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Mercedes W169 W245 Airbag System Control Unit Module ECU A1698206626
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Audio Amplifier BMW F20 F21 LCI Mini F56 Top Hifi Harman Kardon Unit 6836346
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BMW E60 E61 E63 E64 Micro Power Control Module MPM ECU 6939655
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BMW 3 Series E90 E91 LCI N47N 320d 184HP ECU KIT DDE CAS 3 Key 8512291 Manual
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BMW E60 E87 E90 120d 320d 520d M47N2 Engine Control ECU Kit DDE 7803373 CAS3
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Mini Cooper One R55 R56 R58 Petrol Engine Starter Motor N12 7540897
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Mercedes Vito W447 Fuse Relay Box Control Module A4475404326
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VW Golf MK5 1.9 TDI BKC Engine Alternator Mount Support Bracket 03G903143A
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Audi A7 4G A4 B8 A6 C7 Q5 8R Sat Navi Stereo Radio Audio Unit Player 4G0035061J
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BMW F20 F21 F22 F30 F31 F32 Control Unit Airbag Ecu 9296494
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Mercedes S204 Module Control Unit Trunk Lid Rear Tailgate Lift A2048702826
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Audi A5 F5 Sat Navi MMI Multimedia Radio SD Reader Head Unit Harman 8W5035035C
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Mercedes-Benz A-Class W168 Sensor Mat Seat Occupation Recognition A1688207310
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CAS4 Module BMW F01 F10 F11 Key Reading Control Unit 9257036
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BMW E46 Control Unit Module Mirror Memory 6913364
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CD Player BMW E60 E61 LCI E63 E64 Radio Stereo CHAMP Business Head Unit 9187903
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Part no. 7556131
Starter BMW F10 F07GT F13 F03 X5 E70 Petrol N63 Starter Motor 1.6 KW 7556131
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Engine Wiring BMW F10 F31 F32 N20 Loom Module Harness Cable 7641652
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BMW F30 F33 Rear PDC Sensors Wiring Loom Cable 2295873
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Mercedes W204 Front Fuse Box Relay Control Unit SAM Module A2129005622
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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 .