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 A8L 4H Front Door Control Module Left N/S Unit ECU 4H0959792G
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Audi A5 F5 Central Body Control Module BCM Unit ECU 8W0907064GC
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Vauxhall Combo D 1.3 Cdti Fiat Lancia Alternator Engine Genarator 95511910
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Relay Mercedes W203 W204 W212 W639 W906 4-Pin Grey Hella 12V A0025422619
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Mini Cooper One R50 Radio Remote Alarm Key Fob Button 433 MHz 6919270
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Mercedes W245 B200 CDI OM640.941 140HP Engine ECU Kit A6401508334 Key
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Alternator Mercedes W212 S212 Diesel OM651 Alternator 220A Valeo A0009063705
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Audi A4 B8 Petrol Engine Starter Motor Actuator 1.8 2.0 TFSI 06H911021D
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Body Control Unit BMW E46 Z8 E52 E83 Module GM5 Star12 LIN High 6963338
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Mercedes Sprinter W906 Fuse Box Relay Control Unit Module A9065454301
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Citroen Berlingo ECU Bracket Control Unit Module Holder Mount 9808674780
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Mini Cooper R50 R53 R56 R57 R58 Fuel Tank Heat Insulation Plate 2757771
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VW Volkswagen Polo 4 9N Radio CD Player Stereo Audio Head Unit 6Q0035152D
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BMW X3 SERIES E83 LCI Cable Alternator Starter Base B 3419273
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BMW 1 Series E87 ECU Body Control Module Unit PL2 JBBFE 31656951537 6951537
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BMW X5 Series E70 Individual Audio System Amplifier Top-hifi Lear PL5 9166075
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Land Rover Range Rover L322 3.0d M57 Engine Alternator Generator YLE500180
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Audi Q7 4L Air Module ECU Sensor Control Unit 4L0910655D
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Mini Cooper R56 LCI R60 N47N 122HP Diesel Engine ECU Kit DDE 8519663 CAS 3 Key
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Mini Cooper F54 F55 F56 F60 HSD Line Cable Wire HU - CID 9314634
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Mini Cooper One R56 Alternator Generator Bosch 150A 7553009
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BMW E60 Front Seat Control Unit Module ECU Right Temic 9148256
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Audi A8 4E S8 D3 Adaptive Air Suspension Control Module 4E0910553L
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BMW E87 LCI 116i E90 316i N43 122HP Engine Control Unit ECU DME 7579142 Manual
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Mercedes W202 C208 Roof Alarm Motion Sensor Cover Trim Grey A2086900028
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Mercedes S212 Fuse Box Rear Relay Control Unit Electric Module SAM A2129001606
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Rear View Mirror Cable Mercedes W169 W245 Wiring Loom Harness A1695400706
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Engine Wiring Mercedes W212 Diesel OM651 Cable Loom Harness A6511505933
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BMW F80 M3 F82 M4 LCI Cable Wheel Acceleration Sensor 7850609
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Radio Player Mercedes W204 COMAND Navi CD Head Unit A2048700196
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Mercedes W164 W204 Fuel Pump Module Control Unit ECU A2124400314
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Mercedes W169 SAM Module Control Fuse Box Unit A1695405645
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Mini Cooper R50 W10 116HP Engine ECU Kit DME 7520019 + EWS 3 + Key Manual
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BMW 5 6 Series E60 E61 LCI E63 E64 M5 M6 Earth Cable Starter Battery 7835548
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Mercedes ML W164 Cable Loom Wiring Parking Sensors Rear Bumper A1645402405
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BMW 3 Series E92 Front Right O/S Driver Side Door Wire Wiring Loom 6957111
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BMW E65 E66 Battery Cable Positive Plus Pole 6904905
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Audi A3 8P Fusebox Body Control Comfort Module BCM Unit ECU 8P0907279F
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Volkswagen Golf Mk5 2.0 TFSI Petrol Alternator Generator 06F903023HX
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Audi A8 4E S8 D3 Comfort Module Electric Steering Column Unit 4E0907279S
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Alternator Mercedes W204 W207 OM651 14V 150A Engine Start/Stop A0009060401
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BMW Z4 E85 E86 Positive Battery Cable Plus Pole Lead 6953424
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Mercedes S204 Module Control Unit Trunk Lid Rear Tailgate Lift A2048702826
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BMW F20 F21 F23 F30 F31 F32 Telematics Control Unit Module ATM ECE 4G 2622598
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Ford Transit Connect Mk2 II Air Module Control Unit ECU DT1T14B321AG
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Alternator BMW F20 LCI F30 Mini F56 F60 Alternator Generator DENSO 180A 7640132
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Mercedes W211 W219 Earth Ground Cable Battery Wiring Loom Engine A2115420518
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Mercedes Vito W639 Rear Left Right Sliding Door Lock Bowden Cable Wiring
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Mercedes W168 OM668 Diesel Alternator Generator A6681540102
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Radio Player BMW F20 F21 F22 F30 F31 CD Bluetooth Head Unit Control 9310461
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BMW X6 Series E71 Aerial Antenna Amplifier Diversity 868 MHZ 9130157
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VW Polo 9N Seat Body Control Comfort Unit Module BCM Convenience Unit 6Q1937049B
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BMW E60 E61 525d Diesel M57N 177HP Engine Control ECU Kit Module DDE 7794650
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BMW X1 E84 Radio Stereo CD Player Navigation Nav Head Unit 9283247
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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 .