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 C118 W177 W247 Front Door Module Control Unit Right O/S A1779007616
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Audi Q7 4L Positive Battery Terminal Cable 4L0971225D
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Engine Wiring BMW F30 F31 F32 F36 LCI 330d 430d N57N Loom Harness Cable 8514831
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Mercedes Sprinter W906 Parking Control Unit Module Sensor PDC A9069001002
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Audi Q2 GA Q3 F3 Rear Boot Trunk Lid Tailgate Control Unit Module 5Q0959107AB
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BMW 1 Series E81 Footwell ECU Light Control Module LOW PL2 FRM II Lear 9197162
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Opel Zafira Insignia 2.0 A20dth Cdti Glow Plug Wiring Loom Harness 55567591
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Audi SQ5 8R Starter Alternator Engine Wiring Loom Cable 3.0 TDI 8R0971228BG
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BMW F30 F31 F32 F33 Central Information Display Screen 6,5" 9322120
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BMW MINI Cooper S R56 Rear Bumper PDC Cables Wiring Loom Set 9140177
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Mini R55 R56 LCI R60 Alternator Generator Bosch 150A Petrol 7604782
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BMW Z4 Series E85 E86 Aerial Antenna Amplifier Module Rod
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Mercedes Vito W639 Fuse Box Relay Control Unit Front SAM Module A6399000800
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Mercedes C216 W221 Distronic Radar Sensor Control Unit Module A2165402545
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Volkswagen Touareg Yaw ESP Rate Sensor Module Unit Control ECU 7H0907652
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Mercedes-Benz A-Class W168 Fuse Box Unit Holder Bracket Frame A1685453340
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Mercedes-Benz CLK W208 E W210 Xenon Headlight Level Control Unit Module LWR
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BMW E60 E61 E65 Compact Alternator Generator Valeo 170A 7792072
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BMW F10 F11 520d ed N47N 184HP Engine ECU Kit DDE 8517862 Key CAS4 Manual
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BMW 3 Series E90 E91 E92 M3 Engine Alternator Generator Valeo 180A 7838656
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BMW E87 E90 E91 118i 318i N46 ECU Kit DME 7565300 CAS3 + Key Manual
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Mercedes ML W164 C209 W211 C219 AMG Fuel Pump Control Module A0355400145
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BMW 7 Series E65 E66 E67 PDC Parking Ultrasonic Sensor Toledoblau 6989163
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Bowden Cable Mercedes W906 Rear Sliding Door Opener Cable Wire A9067600404
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Audi Q2 GA NAV Multimedia Navigation Display Screen MMI 8,25" 81A919605B
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Audi A6 C7 PDC Parking Distance Sensor Module Control Unit ECU 4H0919475Q
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Mercedes R171 SLK 200K 163HP 271.944 Engine ECU Kit A2711535391 Keys Lock
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Mercedes SLK R172 W212 Rear Fuse Box SAM Relay Control Unit Module A2129004830
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REM Control Unit BMW F20 F30 F31 F34 Electrical Body Control Module V2 9362395
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Transmission Module Mercedes C117 AMG Petrol OM133 Gearbox Control A0009002010
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Mercedes GLC X253 220d OM651.921 170HP Engine Unit ECU Kit A6519006401 Automatic
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Mercedes Sprinter W906 Diesel Starter Motor Engine Valeo A0061517401
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Mercedes ML164 Alternator Wiring Starter Motor Harness OM642 A1645400436
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BMW E60 Rear Lamp Light Bulb Left N/S Carrier For White Turn Indicator Cover
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Mercedes W213 Front Left N/S Door Electrical Wiring Harness A2135407144
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BMW 1 Series E82 E88 Rear Bumper Wiring Loom PDC Harness 9182571
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BMW 3 5 Series Mini Cooper E60 E93 R55 R56 R60 IBS Negative Battery Lead
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BMW E61 Light Control Unit Module LEAR LM E6X MIT AHI 6983539
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Mercedes CLA C117 W166 Head Unit Sat Nav Navigation Display Screen A1669001420
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Engine Control Unit Peugeot Partner B9 Module ECU 9HN 1.6 Diesel 9807885980
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Radio Boost Mini R50 R53 Dolby Cassette Tape Player Control Unit Module 6918529
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Audi A6 C7 Audio Sound System Amplifier Bose 4G0035223C
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Mini F54 F55 F56 F60 Navigation Media Radio Sat Nav Head Unit 5A4F856
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Door Module Mercedes W205 W213 C253 Control Unit Rear Right O/S A1679003718
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Wiring Harness Mercedes Vito W639 Boot Tailgate License Plate Lamp A6394401613
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Mercedes W177 Automatic Gearbox Wiring Loom Harness Cable A2517253714
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BMW F20 F30 125d 325d N47S1 218HP Engine Control Unit ECU DDE 8579785 Manual
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Starter Ford Transit MK8 Custom V363 2,2 Tdci Starter Motor BK3T-11000-CB
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ECU Kit BMW F20 F21 114d Diesel N47N 95HP DDE 8573260 + Key + FEM + Lock Manual
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BMW X3 E83 2.0i N46 150HP Engine ECU DME 7561834 Manual
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Audio Amplifier BMW F30 F31 LCI F32 Top Hifi Harman Kardon Control Unit 9393186
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Mercedes R171 SLK350 Kompressor M272.963 Engine Control Unit ECU A2721533279
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Alternator BMW G11 G12 LCI G20 G21 G30 G31 Alternator 250A Bosch 8571358
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Radio CD Player VW Volkswagen Caddy 2K Touran Head Unit 1K0057186AN
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Ford Mondeo Mk4 Battery Terminal Cable Wiring Connecting 8G9T-14A280
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Mercedes C140 W210 Multifunctional Purpose Relay Fuse Unit Module A0015427419
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BMW 3 5 7 X3 Series E46 E60 E65 E83 M54 Alternator Generator 7541694 155A BOSCH
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BMW F30 F36 G11 Telematics Module Bluetooth Telematik Control Unit ECU 6809300
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Mini Cooper R56 N12 W16 Alternator Generator Napa 7575650
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Part no. 059911021D
Audi A5 8T Starter Motor 3.0 TDI CCWA Diesel 059911021D
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Mercedes Vito W447 Negative Battery IBS Cable Wiring A4479050004
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Part no. 9251975
BMW F10 Light Control Footwell Module ECU Unit FRM3 9251975
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Skoda Octavia 5E Air Module Control Unit ECU Module Sensor 3Q0959655AC
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Audi A4 B9 Power Distribution Fuse Box Battery 8W0941823F
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BMW E39 Cruise Control Unit Module 8375497
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Part no. A6519005301-3
Mercedes W212 E220CDI OM651.924 Engine Unit Module ECU Kit Key Lock A6519005301
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Part no. A1645402305
PDC Wiring Mercedes ML W164 Front Bumper Parking Sensor Loom Cable A1645402305
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Engine Wiring Mercedes W176 W246 Diesel OM607 Loom Harness Cable A6071500233
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Part no. 3Q0907338C
Audi VW Seat Skoda Headlight Aim Range Control Unit Module ECU Xenon 3Q0907338C
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BMW E60 E81 E82 E87 E90 E91 E92 ECU Key Reading Module Control Unit CAS3 9147220
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Part no. 3457153
Mini R55 R56 R57 LCI R58 R59 R60 MINI CD Radio Audio Player Head Unit 3456805
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Mercedes C209 CLK220 CDI 646.966 Engine ECU Kit A6461505091 Keys Lock Automatic
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Mercedes A B Class W169 W245 Rain Light Sensor Control Unit Module A1718203926
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Mercedes-Benz A C W169 W204 Battery Negative Earth Cable Wiring A2045421418
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BMW F20 F21 F30 F31 Telematics Module Bluetooth Combox 9257151
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Radio Head Unit Mercedes W207 W212 COMAND Navi CD Player Navigation A2189005607
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BMW E87 Junction Box ECU Body Control Module Unit H2 PL2RR JBBFE IIIR 9253482
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2X Relay BMW E60 E87 E90 F10 F30 4 Pin Tyco Set Black 6901469
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Mercedes C140 Brake Pump Relay Electrical Fuse Module Control Unit A0015426519
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Mini Cooper One R55 R56 N12 120HP DME 7573701 Engine Control Unit ECU Automatic
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Mini Cooper S F55 F56 F57 Petrol Injector Wiring Cable Loom Harness 8678962
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Volkswagen Polo MK5 6R 1.2 TDI CFWA Engine Unit Module ECU 03P906021A
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BMW 5 7 X5 E34 E38 E39 E53 Petrol Engine Starter Motor 1729981
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Mini Cooper S R55 R56 R57 LCI N18 1.6 184HP ECU Control Unit DME 7613226 Manual
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VW Golf 5 V 1K Fuse Box Control Unit Relay Power Distribution Module 1K2941824
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Head Unit BMW F10 F20 F22 F30 Navigation Sat Nav GPS Unit High 9387565
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BMW E39 Saloon Rear Third Stoplamp Stop Lamp Brake Light 8360568
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Mercedes A238 Tailgate Boot ECU Control Unit Module A1679050200
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BMW F10 F11 Rear Bumper PDC Wiring Loom Cable Harness F01 F12 9336380
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BMW G01 G02 B47D Wiring Harness Engine Recuperation System Supply Module 8477121
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Relay Mercedes W124 E280 Fuse Box Light Control Relay A1265420332
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Mercedes-Benz A B Class W169 W245 SAM Control Module Fuse Box A1699004800
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Audi A3 8V MMI Multimedia CD Player Head Unit Infotainment 8V0035020H
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BMW F20 F30 120d 320d 184HP Engine Control Unit N47N ECU DDE 8574093 Manual
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Ford Transit Airbag Module Air Bag Control Unit ECU 6C1T14B056
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Cassette Player Citroen Berlingo Peugeot 206 Audio Head Unit 964544367700
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Mercedes-Benz W245 Front Bumper Parking Distance Sensor Parktronic Kosmos Black
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Telemetics Control Unit BMW E61 E65 E70 Bluetooth Control Unit Module 9149615
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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 .