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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Mini Cooper One R56 LCI Footwell Light Module Low EKS ECU PL3 FRM3R 3456587
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Mini Cooper One R50 DME Petrol Engine Control Unit ECU 7514587 Manual
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BMW 1 3 Series E87 E90 E91 Petrol N52 Wiring Loom Harness Engine Manual
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Audi A5 8T 1.8 TFSI CABD 170HP Engine Control Unit ECU 8T0907115A Manual
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BMW E87 LCI E90 E91 120i 320i Petrol N43 170HP ECU KIT DME 7575665 CAS3 + Key
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Alternator Generator Mercedes W203 W209 M271 Engine Valeo 120A 14V A2711540902
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BMW X3 E83 LCI 2.0d N47 177HP Engine Control Unit ECU Kit DDE 8506373 EWS Key
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Mercedes W203 C180 Kompressor M271.946 Engine ECU A2711532291 Automatic
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Starter Motor Mercedes Sprinter W204 W211 W212 OM646 Diesel Engine A0061516201
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Audi A3 8P 1.9 TDI BLS 105HP Engine Control Unit ECU Kit 03G906056S Manual
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Starter Motor Audi Q3 8U Volkswagen Passat B7 Engine Starter Actuator 02E911024C
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BMW E60 E90 330i 530i N53 272HP ECU Kit Control DME 7588620 CAS3 Key Automatic
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Wiring Bracket BMW E60 E61 X3 E83 Diesel Engine Harness Cable Loom Mount 7799470
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Mercedes SLK R171 Door Module Front Left N/S Control Unit ECU A1718207126
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Mercedes W203 W210 W211 Starter Motor Diesel Engine Remy A0051511301
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BMW F30 F31 F32 Top Hifi Audio System AMP Amplifier Harman Kardon 9320213
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Mercedes-Benz E-Class W210 Battery Positive Plus Cable Loom Harness A2105400230
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BMW F20 F21 F30 F31 F32 Body Control Unit Module REM 9329700
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Ford Transit Connect Rear Door Wiring Cable Harness Loom FT1T14027LLC
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BMW F20 F21 LCI 118i B38 136HP Engine Control Unit ECU DME 9895416 Automatic
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Mini R60 Amplifier Control Unit HiFi Audio Harman Kardon R57 R58 R61 9239605
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Mercedes W164 W251 Air Suspension Level Control Unit Module Airmatic A2515454132
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BMW E81 E87 E90 Hands Free Electronics Charging Bluetooth Module MULF 6950089
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BMW F30 F31 Car Stereo Apple Car Play Display Screen NBT 6G + 128G NBT-6G128G
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Mini Cooper One R50 R53 Body Control Unit Basic Module BCM 6961364
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BMW AGM 12V Accumulator Battery 90Ah 9343747
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MINI Cooper S R53 W11 170HP Engine Control Unit Module ECU DME 7527610 Automatic
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Audi A1 8X Fuse Relay Box Electrical Control Unit Module 8X0937124
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Ford Transit Mk7 2.2 TDCi Diesel Engine Alternator Generator Unit CC1T-10300-BC
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Mini Cooper Paceman R61 Wiring Loom Harness Front Cable 9811783
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Audi A3 8P Steering Wheel Position Angle Sensor Control Unit Module 1K0953549DB
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Audi A3 8V Negative Battery Terminal Cable Harness Wiring Loom 5Q0915181H
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BMW E81 E87 LCI E90 E91 120d 320d Diesel N47 ECU Kit DDE 7810000 CAS3 + Key
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Headlights Control Module BMW E81 E82 E87 Adaptive Xenon Unit ALC 7171789
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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 .