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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Mercedes W176 Fuse Box Allocation Fuse Placement Map Card Diagram A2465840971
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Mercedes W212 E300 Hybrid 651.924 204HP Engine ECU Kit A6519009102 Keys Lock
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Audi A1 S1 8X Heated Seat Control Unit Module 6R0959772D
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BMW 7 Series E66 Long Version Battery Cable Wiring Positive Plus Pole 6909216
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Audi SQ5 FY Distronic Radar Sensor Control Unit Module Right O/S 80A907561
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Mercedes W176 W246 Radio Head Unit COMAND Navi Player Control Unit A2469000012
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BMW F20 F21 LCI 114d 95HP N47 Diesel Engine ECU Control Unit DDE 8596362 Manual
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Mercedes W169 A180 CDI OM640.940 109HP Engine Control Unit ECU A6409004900
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Mercedes W906 Rear Bumper Blind Spot Radar Sensor Left Right Module A9069006002
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Mercedes W176 180 CDI OM607.951 Blue Efficiency ECU Kit A6079002300 Keys Lock
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BMW 1 Series E81 LOW Light control footwell module ECU PL2 FRM II 9197154
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Mercedes Vito W639 SAM Module Electric Control Unit A6395450601
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Mini R60 Countryman High PL3 SPEG H6 Fuse Distribution Box 9809589
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Audi A3 8P Stereo Radio Audio CD Player Head Unit 8P0035152E
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BMW F20 F30 116i 316i N13 136HP Engine ECU Kit DME 8625241 FEM Key Lock Manual
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BMW 3 5 Series E60 LCI E90 M57N2 325d 525d 197HP ECU Kit DME CAS3 Key 7809941
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Battery Cable Mercedes W169 W211 Negative Lead Wiring Pole Harness A1665420318
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Mercedes ML W166 Head Unit Radio Player Sat Nav Tel SD Card Unit A1669009808
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Mini R57 Cabrio Convertible Wiring Set Loom Harness PDC Rear Bumper 7212916
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BMW 5 6 Series E60 E61 E63 E64 Battery Lead Negative Adapter IBS 9123572
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Mercedes W176 A180 CDI OM607.951 BlueEFFI Engine ECU Kit Lock + Key A6079000700
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BMW E65 E66 On-board Navigation Display Monitor Screen 8,8" 6933162
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BMW Mini Cooper R55 R56 R57 CCC Navigation Navi Sat Nav Head Unit 9195956
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Audi Q7 4L Quattro S Line Comfort Module Convinience Control Unit 4L0907289C
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Mercedes W906 314CDI OM651.955 143HP Engine Unit Module ECU Kit A6519003403
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BMW E83 3.0d M57N2 Engine Control Unit Module DDE 7801712 Automatic
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BMW 1 3 4 F20 F21 F30 F31 F32 N47N Diesel Alternator 180A 7823343 7823344
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BMW E81 E82 E87 LCI E88 N47S 123d ECU Kit DDE CAS 3 Key 7811702 Manual
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Mercedes A209 CLK200 K M271.955 Engine Control Unit ECU Kit A2710107344 Key
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Audi A3 8P Central Gateway Control Unit Module Relay ECU 1K0907530D
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KaFAS Camera BMW X3 F25 Line Assist Control Unit Module 9281716
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Basic Navigation Unit Mini F54 F60 Countryman Sat Nav Head Unit 8705958
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BMW F20 F21 F22 F30 F32 Front Electronic Module Control Unit FEM 9868386
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Audi A3 8V Multimedia CD Player Head Unit Audio Player Panasonic 8V0035864
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Audio Amplifier BMW F40 G05 G20 G30 Top Hifi Harman Kardon Control Unit 9832609
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Mercedes W211 Battery Module Trunk Relay Control Module Unit A2115403845
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Volkswagen Golf Mk8 Front Door Passenger Side Module Control Unit 5Q0959592L
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Mercedes W203 W209 Fuse Box Rear SAM Module Relay Control Unit A2035453801
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Mercedes W221 Rear SAM Fuse Box Power Distribution Control Unit A2215403050
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Mercedes ML W164 Air Module System Control Unit A1648209585
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Mini Cooper S R53 W11 170HP Petrol Engine ECU Kit DME 7542310 EWS3 + Key Manual
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BMW E87 E90 E91 120d 320d M47N2 163HP ECU Kit DDE 7795845 CAS2 + Key Automatic
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Screen Vauxhall VIVARO A Dashboard Monitor Clock Screen 565412769
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BMW E81 Footwell Light Module Control Unit ECU PL2 FRM3R 9263797
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Audi A4 B8 Navi CD Player Radio Sat Harman Head Unit Switch Panel 8R2035666G
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BMW 3 E93 LCI ECU Body Control Module M Junction Box PL2RR JBBFE IIIR 9364819
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BMW F30 F31 320i Petrol N20 184HP Engine Control Module ECU DME 8617551 Manual
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Mercedes W205 Body Control Module Control Unit BCM ECU Module A0009002008
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BMW E60 LCI E90 M57N2 325d 525d 197HP ECU Kit DME CAS3 Key 7809941 Automatic
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BMW E39 Radio Business Cassette Player 6958566 8377005
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BMW F45 Air Duct Front Slam Panel Flap Control Motor Drive Unit C47829-102
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BMW X5 F15 40eX N20 313HP Engine Control Unit ECU Unit DME 8664617 Automatic
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Mini Cooper Cabrio R57 Footwell Light Module High EKS ECU PL3 FRM II 3452677
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BMW F20 F30 LCI Diesel B37 B47 ECU DDE Engine Control Unit 8598759 Automatic
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BMW E90 E91 E92 335d M57N2 286HP Engine ECU DDE Kit CAS3 + Key 8509036 Automatic
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Mercedes Citan W415 Renault Kangoo Master Radio CD Player Head Unit 281156606R
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Mercedes CLA C118 W177 W247 M260 Inerting System Gas Generator A1778685200
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BMW E60 E90 E91 LCI 325i 525i N53 218HP ECU Kit DME 7594305 CAS3 + Key Manual
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Mini One D F56 B37 95HP Diesel Engine ECU Kit DDE 8576522 BDC-LR01 Key Lock
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Hybrid Voltage Battery Audi Q7 Q8 4M Front Top Cooling Radiator 4N0915105B
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Mercedes W169 A160 266.920 95HP Engine Control Unit ECU Kit A2661531491 Key Lock
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BMW E88 Footwell ECU Light Control Unit Module MAX Kuester FRM3R PL2 9224599
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Radio Media Headunit Mercedes C117 W176 Sat Navigation Control Panel A2469008313
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Mercedes W204 C220CDI BlueEFFICIENCY OM651.911 Engine ECU Kit A6519007500 Key
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Wiring Harness BMW F20 F21 F30 Motor Sensor System Module 2 7622980
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Volkswagen Beetle Golf Mk5 Radio Stereo Head Unit 3C8035195H
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BMW 5 6 Series E60 E61 E63 E64 Power Steering Speed Sensor 6774039
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Part no. A1718207326
Mercedes R171 Air Module SRS Control Unit Crash Sensor ECU A1718207326
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BMW Z4 E89 ECU Body Control Module H4 Junction Box PL2RR JBBFE IIIR 9286789
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Mercedes W163 Battery Ground Earth Strap Cable Wiring A1635400841
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BMW F20 F21 F30 F31 LCI G30 G31 G11 Navigation Head Unit Sat Nav High 9877375
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MIni Cooper R50 R52 R53 Display Screen Multimedia Navigation Sat Nav 6953547
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BMW E88 Cabrio ECU Body Control Module H3 Junction Box 9226333
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BMW X3 E83 1.8d 2.0d N47 Engine Wiring Loom Harness 3452217 3452220
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BMW F10 520d 184HP N47N Engine Unit ECU Kit DDE 8518477 + Key + CAS4 Manual
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VW Volkswagen Touran 1T 1.4 TSI CAVC Engine ECU Kit Ignition 03C906027DA + Keys
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Mercedes S205 X253 Center Console Wiring Loom Electrical Harness A2055402224
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Air Module BMW F20 F21 F30 F31 F32 F36 ECU ICM Plus SRS Control Unit 6867170
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Mini Cooper One R50 R52 Fresh Air Recirculating Actuator 1167294 6NN007626
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BMW E91 Max Brose Footwell Light Module Control Unit ECU FRM3R PL2 6827064
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Telematics Module BMW F40 Telephone Control Unit ATM ECE 4G 5A083A6
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BMW G30 Telematics System Control Unit Module Navigation ATM ECE 4G WLAN 9843935
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Mercedes GLA X156 Tailgate Lift Boot Lid Control Unit Module A2469003615
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Mercedes W176 Bumper PDC Wiring Parking Sensor Loom Harness Plug A0225452426
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Renault Trafic F83 M9R 2.0 DCI Engine Control Unit Module ECU 8200935115 Manual
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Audi A5 8T Audio Amplifier Sound Booster Control Unit Module Unit 8T0035223S
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Mini Cooper One R56 Footwell Light Module High EKS PL3 FRM3R Lear 3457527
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Airbag Module Mercedes W203 W209 SRS Control Unit Crash Sensor ECU A2038204585
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Audi A3 8V MMI Multimedia CD Player Head Unit Infotainment 8V0035020H
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Seat module BMW G11 G20 G30 G01 G02 Seat Control Unit Module ECU 9891562
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Battery Wiring Mercedes ML W166 Battery Negative Terminal Cable Wire A1665420518
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Seat Wiring BMW E60 E61 LCI Front Left Loom Harness Passenger Side 6969214
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Mercedes CLC CL203 Automatic Gearbox Control Unit Module ECU A0015454516
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BMW 5 6 7 Series F01 F02 F10 F11 F12 Battery Earth Cable Wiring 330MM 7620950
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Tailgate Trunk Mercedes X117 X156 W205 Boot Rear Control Module Unit A2389053301
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BMW 1 3 Series E81 E87 E90 E91 E92 E93 LCI Radio CD Professional 9226395
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BMW X3 F25 20d N47N 184HP ECU Kit Control Unit DDE 8574091 CAS4 Key Automatic
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BMW E81 E87 LCI E90 120d 320d N47 177HP ECU KIT DDE 7811700 CAS3 Keys Automatic
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BMW 1 3 Series E87 E90 E91 N46 118i 318i 120i 320i ECU DME Control Unit 7545042
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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 .