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 E87 LCI E90 N43 118i 318i ECU Control Unit Kit DME 7595179 CAS3 + Key
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Volkswagen Polo 6N Alternator Generator BOSCH 14V 70A 028903025G
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BMW F30 335i F32 F33 435i N55 306HP Engine Control Unit ECU 8639582 Automatic
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BMW 5 Series E60 E61 PDC Parking Ultrasonic Sensor 6070190091
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Earth Ground Cable Mercedes W204 W207 W212 W218 Battery Wiring Loom A2044407441
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Mercedes ML W166 GLE C292 SAM Module Control Unit ECU A1669006120
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Mercedes ML W164 Radio Player Audio Stereo CD Player Head Unit A1648202679
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BMW Z4 E89 Convertible Top Roof Module Control Unit ECU 7206761
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CD Player BMW E60 E61 LCI E63 E64 Radio Stereo CHAMP Business Head Unit 9187903
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Skoda Yeti 5L Octavia Mk2 Parking Distance Control Unit Module PDC 1Z0919475B
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MINI Cooper D One R50 Alternator Generator 7790879
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BMW X5 Series E53 4.4i Petrol M62 B44 448S2 Engine Wiring Loom Harness 1438902
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Audi S5 8T Front Seat Control Module Unit ECU Left Right N/O/S 8T0959760B
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Mercedes W204 ECU Control Unit Crash Impact Sensor Air Module A2049012704
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Audi A3 8V 2.0 TFSI DJHA Starter Motor 12V 02E911024M
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Audi A4 S4 B8 Body Control Comfort Unit Module BCM2 Unit ECU 8K0907064FF
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Mini F54 F55 F56 Operating Unit Audio Radio Control Switch Panel 6820386
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BMW X3 X5 Series E53 E83 PDC Parking Distance Control Unit Active Module 6921414
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Seat Ibiza FR Double USB C Charging Port Socket Connection 575035736A
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Citroen Berlingo Peugeot Partner CD Player Radio Stereo Head Unit 98053736XT00
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BMW E87 LCI E90 E91 120i 320i N43 170HP ECU Kit DME 7583225 CAS3 + Key Manual
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Mercedes C204 Sound Audio Amplifier Unit Harman Becker A2129005213
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PDC Wiring Mercedes R172 Parktronic Parking Sensor Cable Rear A1725407805
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Volkswagen Polo 6R Fuse Box Module Comfort BCM Body Control Unit ECU 6R0937087P
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VW Volkswagen Sharan 7N Rear Left Right Door ECU Module Control Unit 7N0959794G
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Mercedes W221 Fuse Box Control Unit SAM Module Relay A2215403250
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BMW E60 E63 E90 N52 330i 530i 630i Engine Control Unit ECU DME 7553166 Automatic
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Mercedes W164 Front Fuse Box SAM Relay Control Unit Module A1645402401
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BMW E81 E87 E90 LCI 118d 318d N47 ECU Kit DDE CAS 3 Key 8506434
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Trunk Lid Module BMW X5 E70 X6 E71 Control Unit Rear Tailgate Lift 7230669
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BMW E82 E90 E92 Aerial Antenna Amplifier Diversity DAB Control Unit 6928935
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BMW Mini Cooper R58 R59 Bracket Safety Belt Front Right O/S 2758980
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VW Volkswagen Golf Mk5 Rear Tailgate Wiring Harness Cable Left N/S 1K6971147Q
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Display Mercedes C205 Dashboard Central Multimedia Car System Screen A2059002211
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BMW F20 F21 F30 F31 N55 326HP M135i 335i Engine Control ECU DME 8616314 Manual
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Audi TT FV Stereo Radio Sound System Speaker Amp Amplifier 8S0035465B
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Mercedes W205 C 220d BlueEFFICIENCY 651.921 170HP Engine ECU Unit A6519005203
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Trunk Lid Module BMW F40 F90 M5 G20 G30 Power Tailgate Control Unit 9451484
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Audi S3 8V Starter Alternator Wiring Harness 5Q0971230HH
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Ford Focus Mk3 Antenna Amplifier Antenna Aerial Booster Unit 6G9T-15K602-BB
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Roof Wiring Mercedes SLK R171 Covertible Roof Opening Wring Harness A1715404209
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Mini R55 R56 LCI Instrument Cluster Speedo Navigation Display Screen 9278279
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Renault Trafic Scenic 1.9 DCI Diesel Starter Motor Valeo 8200628419
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BMW F30 F32 LCI 335dX 435dX N57Z 313HP Control Unit ECU Kit DDE 8586536 FEM Key
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BMW E60 525i E90 E91 325i N52 Engine ECU Kit DME 7559178 CAS2 + Key Automatic
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BMW 1 Series E87 ECU Body Control Module Junction Box H2 6962284
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Audi A5 8T Speaker Amplifier AMP Bang & Olufsen 8T1035223A
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Audi TT FV Air Module ECU Control Unit Crash Sensor 5Q0959655P
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Audi A3 8P Air Module Control Sensor SRS System ECU Unit 8P0959655H
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Audi A3 8V Diesel Engine Starter Alternator Electrical 14V 140A 03L903023
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Mercedes W204 W212 W251 Starter Motor 642872 Diesel Engine Starter A0061519801
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BMW F30 Door Wiring Front Passenger Door Loom Cables Harness F31 9286238
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Mercedes W213 Mechatronic Automatic Gearbox Control Unit Module A7252701905
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Mercedes W205 Front Door Module Right O/S Control Unit ECU A1679008711
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BMW E60 E81 E87 E90 E91 LCI Fuel Pump Module Control Unit ECU 6765705
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BMW X3 E83 LCi AMPLIFIER HIFI SYSTEM LEAR PL2 6990098 65126990098
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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 .