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 R50 R52 Petrol Alternator Generator 100A 7523897
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Ford Transit Custom 2.0 EcoBlue 130HP FWD Engine ECU GK21-12A650-CA Manual
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Head Unit Mercedes C205 Radio Player USB Sat Nav Harman A2059008430
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BMW E90 E91 LCI E92 330d Diesel N57 245HP ECU Engine Module DDE 8510221 Manual
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BMW X5 E53 3.0d M57 184HP ECU Kit Control Unit DDE 7789376 EWS3 + Key Automatic
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BMW E60 LCI E63 CHAMP Business System Controller CD Player 9165837
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Mercedes W415 Fuse Box Relay Control Unit Module 284B68764R
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Control Unit BMW F10 F11 X3 F25 CAS4 Key Reading Module 9268750
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Mercedes W204 Sound Audio Amplifier Unit Harman Becker A2049007806
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Mini Cooper S R55 R56 N14 1.6 174HP ECU Kit DME 7587548 CAS 3 + Key Manual
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BMW E53 E60 E63 E65 545i 645Ci 735i 4.4i N62 Engine Control Unit DME 7540600
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Head Unit Retrofit BMW X5 E70 X6 E71 Apple CarPlay Android Auto CIC Set
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BMW 5 Series E60 Light Control Module Unit Lear LME6X MAN. LWR (LCM) 6983535
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Mini One R56 N12 1.4 95HP Petrol ECU Control Unit Kit DME 7589971 + CAS3 + Keys
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Tailgate Module BMW F01 F10 Rear Boot Trunk Lid Control Unit ECU 7304629
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BMW 6 Series E63 E63N E64 LCI Negative Battery Cable Minus Pole IBS 6944685
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BMW F30 LCI F15 F45 G30 Mini F60 Accumulator Battery Unit High Voltage 8612163
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Mercedes Sprinter W906 Central Lock Locking Control Unit Module A9069003903
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BMW X3 SERIES E83 2.5i 3.0i M54 Wiring Loom Harness Engine Automatic Gearbox
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BMW X1 E84 Max Brose Footwell Light Module Control Unit ECU FRM3R PL2 9340339
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MINI Cooper One D R55 R56 Alternator Generator Diesel 150A 7794970
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Mercedes Vito W639 Front Left Door N/S Lock Bowden Pull Cable A6397600704
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Audi S6 C6 Steering Column Wiper Switch Stalk Cruize Control 4F0953549A
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MINI Cooper R50 R52 1.6i W10 116HP Engine ECU Kit DME 7539808 EWS Key Manual
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Mercedes W204 W221 Distributor Box Block Control Unit Relay A0045467540
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BMW E60 E87 E90 120d 320d 520d N47 ECU Kit DDE 7809000 CAS3 + Key Automatic
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Engine Wiring Harness Mercedes W203 W211 M271 Loom Wiring Cable A2711502433
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Mini Cooper S R56 JCW Coolant Thermostat Adapter Wiring Cable 8611289
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Air Module BMW F45 X1 F48 Mini F54 F55 F56 Air Module Control Unit ECU 6998485
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BMW F11 LCI Body Control Module Unit V7 PL6 JBBFE III 9353421
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BMW 1 3 E87 E90 E91 M47N2 Engine Injector Module Wiring Harness Cable 7796828
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BMW E81 E87 E90 LCI 118d 318d N47 143HP ECU Kit DDE 8510592 CAS3 Key Manual
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Mercedes W212 Display Screen Information Navigation Dashboard A2129014606
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Mercedes W169 W211 6 Disc CD Changer Player Glove Box A2118275542
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Mercedes-Benz E W211 Radio Aerial Antenna Amplifier Module Unit A2118200089
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Mini One R50 W10 90HP Engine Control Unit ECU DME 7545789 Manual Transmission
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BMW F20 F30 116i 316i N13 Engine ECU KIT DME 8603352 + FEM + Key Automatic
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Mercedes SLK R171 Stereo Radio CD Player Head Unit A1718200386
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Air Module Sensor BMW Z4 E85 E64 B-Pillar Left N/S Crash Module ECU 6962887
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Audi TT 8J BCM Body Control Module Unit ECU 8P0907063R
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Audi TT 8J Volkswagen Golf Mk5 Gateway Control Unit Module ECU 1K0907530L
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Mercedes W245 ECU Control Unit Sensor Air Module A1698201085
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BMW 1 Series E87 ECU Footwell Light Module Control Unit PL2 FRMFA 6955491
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On-Board Screen BMW F20 F30 LCI Information Display Touch Monitor 8,8" 8709338
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BMW E60 E90 E91 330i 530i Engine N52 ECU Kit DME 7559178 CAS2 + 2 Keys Manual
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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 .