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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Audi Universal SD Card Map Pilot Navigation Europe 2016 8X0919884J
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Driver Seat ECU Mercedes W203 A209 W211 Memory Control Unit Module A2118704626
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Audi Q3 8U Petrol Alternator Generator 14V 140A 06J903023B
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Mercedes X156 GLA200 M270.910 156HP Engine Control Unit ECU Kit A2709002900 Key
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Mercedes-Benz M-Class ML W163 Fuel Pressure Sensor A0041537528
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Citroen C4 Peugeot 407 3008 Alarm Anti-Theft Siren Module Unit 9657384680
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Mercedes ML W163 Yaw Rate Sensor Turn Rate Speed Module A1635422318
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Mercedes Vito W447 Front Passenger Side Fuse Box Control Unit Module A4475407880
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Mercedes SL400 R231 276.825 333HP Engine Control Unit ECU A2769007300 Automatic
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Audi A6 4F C6 3.0 TDI Diesel Starter Motor Bosch 0001109319 059911024D
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Fuse Box Mini Cooper R57 Cabrio High SPEG PL3 DC/DC H4 Distribution 3457579
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Mercedes-Benz CL S C215 W220 ESP PML BAS Control Unit Module ECU A2205451832
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Mini Cooper SD R56 LCI R60 143HP N47N Engine ECU Kit DDE 8517727 + CAS3 + Key
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Ford Transit Custom Mk1 Fuel Tank Sender Wiring Harness Loom GK2T-14A069-AB
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BMW E46 Led Indicator Side Light Signal 7165845
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Audi S3 8V Module BCM Body Control Unit Module ECU 5Q0937084CP
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BMW F20 F21 F30 F31 Mini F56 Air Conditioning Module A/C Control Unit 9462542
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Mini F57 Cabrio Antenna Aerial Amplifier AM / FM Rear Unit Module FM2 9309990
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Mercedes Vito W639 OM646 Diesel Engine Wiring Cable Loom Harness A6395407735
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BMW F12 F13 F20 F21 Alternator Generator 14V 210A N55 Petrol Engine 7591529
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Alternator Generator BMW X5 E53 E60 E61 E63 E65 N62 Petrol Engine 180A 7540992
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Alternator Mini R55 R56 R57 R57 R58 LCI Generator Petrol 7574365
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Mercedes ML W164 Rear Control Unit Module Fuse Box SAM A1645401801
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Audi TT FV Starter Motor Engine Diesel 02M911021S
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Audi A3 8P Door Window Lifter Regulator Motor Front Left N/S 8P0959802K
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BMW 3 E92 ECU Body Control Module Junction Box L1 PL2RR JBBFE IIIR 9229872
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BMW 7 Series E65 E66 Driver Seat Airbag Sensor Control Unit Module 6946107
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Mercedes-Benz E W210 Battery Starter Alternator Positive Plus Cable A2105401530
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VW Volkswagen LT 35 Glow Plug Module Relay Control Unit Black 2D0911253
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Mercedes W176 Head Unit Radio Cd Player Bluetooth Multimedia A2469009412
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Alternator Generator BMW F10 F30 N20 Diesel Electrical Unit Denso 210A 7605061
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Dashboard Monitor BMW F30 F31 Display Central Information Screen 6,5" 9270393
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Mini Cooper F56 136HP Petrol B38 Engine ECU Kit DME 8638785 + BDC + Key
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BMW 5 Series E60 E61 LCI CCC CD Sat Nav Head Player System Controller 9170702
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Alternator Generator Mercedes W203 M111 Petrol Engine Valeo 120A A0111548402
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Wiring Harness Mercedes W203 M271 Kompressor Petrol Engine Camshaft A2711502733
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Mercedes R171 SLK 200K 163HP 271.944 Engine ECU Kit A2711535391 Keys Lock
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BMW 5 6 Series E60 E60N E61 E61N E63 Terminal B Point Engine Compartment 6923945
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Mercedes S212 Estate Roof Antenna Cover Shark Cosmos Black Metallic - 303
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BMW Mini Cooper R50 R53 Cable Door Right Wiring Harness Loom 6915575 6944249
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BMW E81 E82 E87 E88 Boardmonitor Central Information Display Screen 6954165
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Mercedes W204 Display Screen Multimedia Navigation Dashboard Unit A1729008600
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Volkswagen Golf 5 1K 2.0 TDI BMN 170HP Engine ECU Kit 03G906018FC 2 Key Ignition
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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 .