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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Light Control Module BMW E87 Footwell Control Module Unit 6961131
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Head Unit BMW F20 F21 F30 Radio Professional CD Player Control Module 9272368
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BMW F10 F20 F30 Bus Interface Control Module Unit 60 OHM 6807396
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Mercedes W211 Rain Light Sensor Control Unit Wiring Loom Cable A2115409605
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BMW Z4 E89 Audio Amplifier Sound System Top Hifi Unit Module 9232424
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Ford Galaxy MK3 2.0 TDCI DW10C Engine Unit Module ECU BG91-12A650-NJ
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Mercedes W176 PDC Parking Distance Sensor Module Control Unit ECU A2469008311
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VW Transporter T5 2.0 TDI CAAA Engine Unit Module ECU Manual 03L907309K
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Audi A8 S8 D3 Electric Parking Brake Module Handbrake Control Unit 4E0907801B
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Mercedes W205 W213 C253 Battery Cable Negative Lead Wiring Harness A0009058912
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Audi A3 8P Convertible Roof Control Module ECU 8P7959255
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Distronic Radar BMW F20 F21 F22 F30 F34 GT Sensor Control Unit Module 6885585
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Mercedes W177 Door Control Module ECU Front Right O/S A1779008803
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Engine Wiring BMW F20 F30 LCI 118d 318d 120d 320d B47 Loom Harness Cable 8595284
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BMW X3 E83 3.0d M57N2 218HP ECU Control Unit Kit DME 7801217 EWS3 Keys Automatic
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Mercedes C205 W213 USB SD Card Module Multimedia Reader Port Socket A2138200400
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BMW i4 G26 High Voltage Battery Cable Wiring Harness Loom EDH Kit Set 5A2DB33
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Iveco Eurocargo 75E15 Body Control Module Unit ECU 504041124
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Audi Q5 8R Negative Battery Terminal Cable Wiring Battery 8R0915181C
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Mercedes-Benz E-Class A207 W207 Convertible Air Module System Control Unit
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BMW F20 F21 F22 F30 F31 F32 F36 Front Electronic Module Control Unit FEM 8709211
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Door Module Mercedes W169 W245 Front Left N/S Control Unit A1699000300
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BMW 5 6 Series E60 E61 E63 Passenger Side Door Airbag Control Module 6944501
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Mercedes Sprinter W906 OM651 Battery Wiring Harness Loom Cable A9065403815
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VW Golf VII Skoda Octavia Fabia III Front Windscreen Rain Sensor 5Q0955547A
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Reversing Camera BMW G11 G12 G30 F90 Rear View Trunk Lid Tailgate 9495896
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BMW E87 E90 E91 118i 318i N46 129HP ECU Kit DME 7565300 + CAS2 + Key Automatic
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Ford Transit Connect CD Player Radio Stereo Audio Head Unit RDS EON 97AP18C815HA
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Mini Cooper D F55 F56 B37 116HP Engine Control Unit ECU DDE 8582719 Manual
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Audi A5 8F Radio Stereo CD Player Reader Head Unit MMI Multimedia 8R2035186G
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Audi TTS Mk2 8J 2.0TFSI CDLB 272HP Engine Control Unit ECU 8J0907115AJ Automatic
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Mercedes W212 Rear Suspension Shock Left N/S Sensor Wiring Cable A2125402605
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Audi TT 8N Air Module Control Module Unit ECU 8N0959655A
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Audi A4 B9 A5 F5 Air Module Pedestrian Protection Crash Sensor 8W0959121A
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Door Module Mercedes W177 W247 Rear Left Right N/O/S Control Unit A1779008511
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Mercedes W211 E220 CDI OM646.961 150HP Engine Unit ECU Kit A6461532079 Key Lock
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Audio Amplifier BMW F10 F11 F12 F13 Harman Kardon Top HIFI System Unit 9366159
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Fiat Alfa 159 Maserati Quattroporte Windscreen Rain Sensor Module Unit 60684944
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Engine Starter BMW F20 F21 F22 F30 F32 N47N Diesel Motor Apec 0986024980
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Audi Q7 4L Disc CD Changer Player Reader System Head Unit 4L0035111
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Audi A4 S4 B6 A7 4B Crash Impact Sensor 8E0959651
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BMW F31 F34 328i N20 245HP Engine Control Unit Module ECU DME 8610635 Automatic
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ConWys AG CFC Towing Hitch Trailer Hook Module Control Unit ECU LED 52024501C
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BMW i4 G26 High Voltage Battery Controller SME Module Control Unit ECU 8854038
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Volkswagen Touran 1T Parking Control Unit Module Sensor 1K0919283A
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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 .