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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BMW F20 F21 F30 F31 Diesel Alternator Generator 180A 8578608 8578609
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Mercedes C E Class W203 W211 Bluetooth Control Unit Module ECU A2118702726
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Head Unit BMW F10 F20 F22 F30 Navigation Sat Nav GPS Unit High 9387565
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Audi A7 4G Q7 4L 3.0 TDI Glow Plug Pre Heat 651 Relay Unit 9 Pins 4L0907282A
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BMW 1 3 Series F20 F21 F30 LCI Starter Motor Engine 8621840
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Battery Cover Mercedes C118 W177 W247 Upper Trim Housing Lid A2475400025
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Mini Cooper S R55 R56 R57 N14 1.6 ECU Basic Control Unit DME 7587548 Manual
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Mini Cooper S R56 N14 1.6 174HP ECU Kit DME CAS 3 Key 7610009 Manual
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BMW 5 6 7 E60 E61 E63 E64 E65 PDC Parking Control Module Unit ECU 6922785
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BMW E85 Roadster Cabrio Safety Information Air Module 6939811
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BMW E81 E87 LCI 116i 1.6 Petrol N43 122HP ECU Kit DME 7599881 CAS3 Key Manual
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BMW E81 E87 E90 LCI Professional Navigation Car Radio Player CIC 9273188
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Mini Cooper R50 R52 W10 116HP Engine ECU Kit DME 7557395 + EWS + Key Manual
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BMW X5 E53 X3 E83 Control Unit Xenon Adaptive Headlight Ballast 6939069
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Mercedes CLK C209 Fuse Box Relay SAM Module Control Unit A2095452001
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BMW X3 F25 X4 F26 Dashboard Monitor Onboard Central Display Screen 6,5" 9269020
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Mercedes W203 W204 Diesel Engine Starter Motor A0061512501
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Mini Cooper R56 Footwell Light Module High EKS ECU PL3 FRM3R 3456051
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Voltage Converter Mercedes W213 S213 Module Auxiliary Battery Unit A2059052809
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Mercedes W203 W204 W211 Automatic Gearbox Transmission Control Unit A0034464110
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BMW 5 6 Series E60 E63 E64 Body Control Module ECU Control Unit 6957140
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Mercedes-Benz X156 Front Bumper Pressure Crash Impact Sensor A1569056800
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BMW E60 E81 E87 E90 Snap-in Adapter Basic Telephone NOKIA 6230I
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BMW E60 E61 E63 E64 6-disc Compact CD Changer with Magazine 6956939
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Mini Cooper F55 F56 F57 Visual Boost Surround Central Cover Instrument 9367673
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BMW F20 F21 F22 Rear Bumper PDC Ultrasonic Sensor Estoril Blue 2
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Audi A6 C7 Voltage Converter Stabilizer Control Module Unit ECU 8K0959663F
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Mercedes W204 Front Fuse Box Relay Module Sam Control A2129005712
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Mercedes W205 Head Unit Radio CD Player Audio Sat Nav Multimedia A2059003729
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Head Unit BMW F20 F21 F30 Radio Professional CD Player Control Module 9341078
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BMW 7 F01 LCI On-Board Central Information Display Screen Monitor 10,25" 9284970
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BMW 3 Series E90 E91 LCI 325i N53 218HP ECU Kit DME CAS3 Key 7592080 Manual
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Mercedes W176 W246 Comfort Module Central Gateway Control Unit VST A1769001101
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BMW F45 F46 Mini F60 Sensor For Pedestrian Protection PTS Control Unit 9354289
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BMW F20 F30 116i 316i N13 136HP Engine Control Unit ECU DME 8603352 Manual
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BMW X3 X5 Z4 E53 E83 E85 6-Disc CD Changer Multichanger With Magazine 6913389
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BMW Mini Cooper One R52 Body Control Unit Basic Module BCM 6968827
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BMW E60 E61 Rear PDC Parking Sensor Mysticblau Mystic Blau Blue 7115654
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Dashboard Monitor BMW X3 F25 X4 F26 Onboard Central Display Screen 8,8" 6822625
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BMW F22 F23 Active Front Bumper Sensor Pedestrian Protection Unit 9196020
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Part no. 7823343
Alternator BMW F20 F21 F30 F31 F32 N47N Diesel Generator 180A 7823343
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BMW E60 LCI E90 E92 330d 530d M57N2 Engine Control Unit ECU DDE 7810950 Manual
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BMW 7 Series E65 E66 Positive Battery Cable Plus Pole Petrol 6904903
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Mini Cooper S R56 LCI N18 184HP ECU Kit Control Unit DME 7613226 CAS Key Manual
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Part no. 7532988
BMW X3 Series E83 3.0i M54 Automatic Gearbox Basic Control Unit EGS 7532988
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Fuse Box Mercedes W212 Control Unit Power Distribution Electrical A2125407050
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BMW E90 E91 E92 E93 LCI Diesel N57 Alternator 150A 7808073 7805432
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BMW E90 Max Brose Footwell Light Module Control Unit FRM3R 9263803
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Mini Cooper R55 R56 LCI Cable Set EPS Power Steering Wiring Harness 9137405
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Mercedes-Benz CLC-Class CL203 Antenna Amplifier Rear Right O/S A2038270642
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BMW 3 X3 X5 Series E46 E53 E83 Towing Hitch Trailer Hook Module Control Unit
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Mini Cooper One R50 R53 Body Control Unit Basic Module BCM 6961363
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BMW 3 Series F30 F80 Boot Trunk Lid Tailgate Wiring Loom Harness Cable 9260012
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BMW E92 LCI Max Brose Footwell Light Module Control Unit ECU FRM3R PL2 6827064
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Mini Cooper R55 R56 N12 1.6 120HP ECU Kit DME 7600020 CAS3 Key Manual
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BMW E60 E63 E90 E91 LCI Dashboard Dash Monitor Display Screen 6,5 6938109
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BMW X5 E53 Onboard Computer Navigation System Monitor Widescreen 6934413
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BMW Mini Cooper S R55 R56 Automatic Gearbox ECU Control Unit EGS Module 7600562
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Mercedes Vito W639 Sprinter W906 CD Audio Stereo Radio Head Unit A9068200886
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BMW Z4 E85 E86 Battery Mounting Bracket Part Holder 6911024
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Exide Battery AGM EK700 70Ah 760A Accumulator
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Air Module Sensor BMW Z4 E64 E85 B Pillar Right O/S 6962888
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Mercedes Vito Viano W639 Fuse Box Cover Trim Panel Lid Housing A6395450403
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BMW 3 X1 SERIES E84 E90 E91 E92 Petrol Instrument Cluster Speedo Clocks 9166853
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BMW 1 3 Series E81 E87N 123d N47S Wiring Harness Loom Engine 7803799 7802164
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Air Suspension Module BMW X5 F15 F85 X6 F16 F86 Regulation Control Unit 6860387
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BMW E90 Xenon Footwell Light Control Module LCM PL2 FRM II 9166708
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Mercedes-Benz W169 W204 W207 Auxiliary Additional Backup Battery A2115410001
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BMW E60 Hands Free Electronics Charging MULF 6946393 84216946393
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Bowden Cable Mercedes W639 Rear Right O/S Sliding Door Handle Catch A6397602004
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BMW Mini Cooper One R56 LCI High PL3 SPEG H4 Fuse Distribution Box 3457163
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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 .