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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Audi TT 8J Speaker Loudspeaker Front Door Left Right N/O/S 4F0035411E
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Mercedes W140 Electric Seat Adjustment Control Unit Module ECU A1408205126
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Mercedes W140 Seat Heated Heating Control Unit Module ECU A1408201526
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VW Volkswagen New Beetle 1.6 BFS Petrol Starter Generator Motor 02A911023L
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Alternator Generator Mercedes W203 W204 M271 Engine Valeo 120A 14V A2711541402
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Volkswagen Golf MK6 Parking Sensor Wiring Rear Bumper Loom Cable 03L972619BA
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Mercedes C140 Seat Belt Module Control Unit ECU A1408202526
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Mercedes C140 Brake Pump Relay Electrical Fuse Module Control Unit A0015426519
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Mercedes C140 W210 Multifunctional Purpose Relay Fuse Unit Module A0015427419
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Mercedes C140 Headlight Module Ballast Relay Control Unit LCM A1405420732
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BMW E81 E82 E83 E84 E85 E87 E90 Petrol Denso Starter Motor 7524843
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Mercedes C140 Body Control Comfort Unit Module BCM Unit ECU A0185458332
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Mercedes C140 W202 Engine Cooling Radiator Fan Control Unit Module A0165459632
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Mercedes C140 Gearbox Module Transmission Basic Control Unit A0175450632
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Mercedes C140 Fuse Box Relay Cover Lid Control Unit Bracket Trim A1405400282
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Head Unit BMW F20 F21 F32 F36 LCI Radio Media GPS Sat Navigation Unit 6809244
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Mercedes C140 Comfort Convenience Control Module Unit ECU A1408206026
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Mercedes C140 Battery Box Boot Storage Cover A1406934633
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Vespa Piaggio 125 GTS CDI Ignition Module Control Unit 58053R
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Volkswagen Polo 5 6R 1.2 TSI CJZC 90HP ECU Engine Control 04E907309AF
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BMW X3 E83 LCI Fuse Box Grouping Map Diagram Location 3428544
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BMW 3 5 7 Series F30 LCI 330e G11 G30 Fuel Pump Control Unit Module 7439743
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Mercedes SL63 R231 Roadster Fuse Box Passenger Footwell Fuse Box A2315401050
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Volkswagen Touareg Diesel Engine Starter Motor Actuator Starter 070911023C
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Audi A1 8X Rear Door Module Left N/S Control Unit ECU 8X0959795D
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Piaggio X8 X9 Vespa Granturismo Immobilizer Module Control Unit CDI 58054R
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BMW E90 E91 325i E60 LCI 525i N53 218HP ECU Kit DME 7586940 CAS3 + Key Manual
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Audi Q7 4L 4.2 TDI Quattro Positive HV Battery Terminal Cable Harness 7L0971225
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Audi Q7 4L Power Supply Battery Control Module Unit 4L0915181
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Audi A6 A8 Q7 CAN Bus Jumper Contact Bridge Connector 4E0941817
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Audi Q7 4L Radio Head Unit Navi CD DVD Player Changer 4L0910110A
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Audi Q7 4L Bluetooth Module Multimedia Control Unit ECU 4E0035729A
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Audi Q7 4L Steering Column Lock Mechanism Control Unit Module ECU 4F0905852B
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Audi Q7 4L Fuse Box Relay Control Unit Module 7L0937503D
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Audi Q7 4L Air Suspension Level Height Adjustment Compressor Pump 4L0698007A
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Audi A1 8X Door Module Front Driver's Side Control Unit ECU 8X0959793H
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Audi Q7 4L Parking Control Unit ECU Module Sensor PDC 4F0919283H
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Audi Q7 4L Radio Multimedia Receiver Control Module Unit 4E0035541S
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Audi Q7 4L Quattro Audio Sound BOSE Amplifier Stereo System Module 4L0035223D
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Audi Q7 4L Quattro S Line Keyless Entry Antenna Control Module 4L0907335
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Audi Q7 4L Quattro S Line Comfort Module Convinience Control Unit 4L0907289C
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Audi A1 8X Body Control Module Unit ECU 8X0907063K
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Audi Q7 4L Boot Trunk Subwoofer Rear Bass Speaker 4L0035382B
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Mercedes W207 Telematic Communication Control Unit Module A1669005517
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Mercedes X218 CLS 350CDI OM642.853 Engine Control Unit ECU Kit A6421508900 Key
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Mercedes C238 E53 Coupe Window Lifter Comfort Module Unit Rear A2389000401
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Mini F55 F56 F57 Integrated Supply Module Electrical Control Unit Module 8486997
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Mercedes X218 CLS350 Airmatic Suspension Self Leveling Module A2189008903
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Fuel Pump Module BMW F10 M5 F80 M3 Fuel Pump Control Unit 7398495
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Air Module BMW F20 F23 F30 F32 F36 Domain Control Module ICM Plus Unit 6879835
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BMW F80 M3 LCI Telematic Control module Comunication Unit ATM ECE 4G 6820726
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Head Unit BMW F20 F21 F30 F31 LCI Radio Media Player Sat Nav High 2 6829104
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BMW M3 F80 LCI VDC Controler Adaptive M Suspension Mode Control Module 6881597
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Alternator Generator Mercedes W176 W246 OM651 Diesel Engine 175A A0009063322
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BMW X1 E84 18dX Diesel N47N Engine Unit ECU Kit DDE 8574351 CAS3 Key Automatic
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Volkswagen Golf CD1 Front Door Right O/S Loom Wiring Cable Harness 5H4971162MP
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BMW F20 F30 F32 F33 F34 B38 B48 Petrol Engine Alternator Generator 180A 8645325
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VW Volkswagen Golf Mk8 Online Services Module Control Unit ECU 5WA035284F
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Volkswagen Golf CD1 Park Parking Assist PDC Distance Control Module 5R3919294
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Volkswagen Golf CD1 Antenna Amplifier Transmitter Receiver Module ECU 5WA035741B
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Audi A3 8V Headlight Range Cornering Adjustment Control Module 8V0907357A
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Audi A3 8V Multimedia Display Screen Radio Sat Nav Head Unit 8V0857273P
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Audi A5 F5 Xenon Headlight Resistor Ballast Relay Module Unit 7PP941572AC
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Volkswagen Golf 8 CD1 Wireless Phone Charging Center Console Module 5NA980611A
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Battery Clamp VW Golf 8 CD1 Audi A3 8Y Battery Base Bracket Holder 5Q0803219C
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Mini F55 LCI N16 Petrol Oil Pump Adapter Solenoid Valve Wiring Harness 8626763
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Mercedes W204 Display Screen Information Navigation Dashboard A2049007408
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VW Polo 6R Seat Ibiza Mk4 Starter Motor Bosch 1.2 Petrol CGPB 02T911023R
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BMW X3 F25 20dX 190HP B47 Engine Control Unit ECU Kit DDE 8588946 Key CAS4
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VW Volskwagen Polo 6R Multimedia Electronic Control Interface Module 5N0035342F
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Control Unit BMW F07 F10 F11 F12 F13 F25 Air Module ECU Unit Continental 9385025
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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 .