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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Mercedes Vito W447 Battery Cable Alternator Wiring Diesel OM651 A4475400600
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BMW F20 LCI 116d B47 Engine ECU Kit DDE 8591073 + FEM + Key + Lock Manual
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BMW i4 G26 Fuse Box Front Body Control Module ECU BCM Unit 5B31359
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Mercedes GLC X253 Relay Battery Control Cut Off Out Relay A0009825323
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Mercedes Vito W447 Battery Cable Alternator Wiring Diesel OM651 A4475400010
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Volkswagen Touran 1T Scirocco III BCM Body Control Module Unit ECU 5K0937087AD
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BMW F20 F21 116d ed Diesel N47N 116HP ECU Kit DDE 8573260 + Key + FEM Manual
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BMW F30 Fuse Box Relay Control Unit Module 9314235
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Ford Transit Mk8 Airbag Module ECU Control Unit Air Bag BK3T-14B321-AD
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Mercedes-Benz C E W203 W210 200 220 CDI Transmission Control Unit Module ECU
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Mercedes-Benz C-Class W203 M111 C 180 Bosch Alternator Generator 0124515056
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Audi A4 B8 Body Control Comfort Unit Module BCM Convenience Unit 8K0907064EC
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Alternator BMW G11 G12 LCI G20 G21 G30 G31 Alternator 250A Denso 8634167
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BMW E90 Max Brose Footwell Light Module Control Unit ECU FRM3R 9241008
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Airbag Module Mercedes C118 W177 W247 Front Air Bag Control Unit ECU A1779005513
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Earth Ground Cable BMW E90 E91 E92 Negative Battery Lead Wiring 7549396
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Audi A3 8Y Engine Injector Module Wiring Harness Cable 2.0 TFSI 06N971627B
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Seat Ibiza FR KJ1 Fuse Distribution Box Electrical Control Unit 2Q0937548D
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BMW E90 E91 LCI Flat Cable Wiring Wire CAS Start Stop ECU Loom 7222633
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Display Screen Citroen Berlingo Peugeot Partner Dashboard Monitor 9803399680
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Renault Trafic II Control Unit Sat Nav Navigation Module Unit 280380655R
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Ford Mondeo MK3 2.0 TDDi Diesel Engine Starter Motor 2S7T-11000-DC
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Mercedes Sprinter W901 W638 Fuse Box Relay Control Unit Module A0005400650
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BMW E87 E90 E91 E60 E61 E63 N52 Alternator Generator 155A 7542529
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Mercedes-Benz E-Class W210 S210 Battery Cable Box Connector Right A2105460241
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BMW E60 E90 325i 525i N52 218HP ECU Module Kit DME 7567178 CAS3 Key Automatic
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Mercedes W168 Battery Support Holder Front Mount Bracket A1686100336
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Varta Accumulator Battery 80Ah 800A 12V Silver Dynamic AGM F21
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Mercedes W177 A200 M282.914 163HP Engine Control Unit Module ECU A2829003200
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VW Touareg 7L Body Control Comfort Unit Module STG Convenience ECU 7L0959933H
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Mercedes W207 Connection Media Interface Cable iPod Wiring Lead A0018276804
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Audi A4 B9 Fuel Pump Control Unit Module ECU 8W0906093D
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Jaguar XF X250 3.0 D AJV6D Engine Control Unit ECU 9X2Q12A650PAD Automatic
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Mercedes-Benz W210 S210 Alarm Anti Theft System Control Module Unit A2108208726
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BMW X3 F25 Tailgate Trunk Lid Wiring Harness Rubber Cover Left N/S 9285767
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BMW F30 F32 LCI N57N N57Z Diesel Engine Alternator Generator 230A Valeo 8570675
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BMW F30 320d ed Diesel N47N 163HP Engine Control ECU Kit DDE 8518568 FEM Key
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Starter Motor BMW E46 E60 E83 E53 M57N Diesel Engine Starting Unit 2KW 7788680
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Mini R56 LCI One 55kW N16 1.6 75HP Engine ECU Kit DME 8617050 CAS 3 + Key
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Seat Module Mercedes W213 C238 Memory Control Unit Left Right N/O/S A2139008409
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BMW Mini Cooper R55 LCI PL3 SPEG H5 Fuse Distribution Box 3456855
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Mercedes C207 Rear Radio Amp Sound Amplifier Audio Getaway Becker A2078205289
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Mini Cooper F55 F56 Dual Clutch Transmission Gearbox Control Unit Module 8486547
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Mercedes W204 Sound Audio Amplifier Unit Harman Becker A2048705190
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BMW E38 Basic Body Control Unit Module General Junction Box ECU GM III 8378633
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BMW G20 G21 Positive Battery Cable Wiring Loom 8589948
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BMW X5 E53 X3 E83 M57N2 Alternator Generator Diesel Engine Power 150A 7797661
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Peugeot 207 Fuse Box BSI Control Unit Module 9663798380
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Alternator Mercedes W212 W447 X253 C238 Petrol M274 150A Bosch A0009060922
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Audi A3 8P Starter Motor Engine Diesel Actuator Unit 02A911023 LRS00791
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BMW E81 E82 E87 LCI E88 N47S 123d ECU Kit DDE 7812502 + CAS3 + Key Automatic
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Vauxhall Combo Fiat Punto 1.3 Diesel Starter Motor 51810307A152
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Mercedes-Benz C CLK W202 W208 Electrical Fuse Relay Box Storage A2085400150
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Audi Q2 GA Online Services Control Module ECU Control Unit 5WA035282
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BMW F80 M3 F82 F83 M4 S55 431HP Engine Unit Module ECU DME 8642252 Drivelogic
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Engine Wiring Mini F56 Cooper S B46 B48 Valvetronic Cable Loom Harness 8617703
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Ford Transit Mk8 Alternator Generator Unit 220A 2.0 Diesel Engine 6CIT-10300-BC
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Mercedes R231 Electronic Control Unit Module A2319003705
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BMW F30 LCI B48X 330e Hybrid Electric High Voltage Battery 8677631
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Audi A3 8V Multimedia Display Screen Radio Sat Nav Head Unit 8V0857273H
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Radio Head Unit Mercedes C117 W176 W246 Navi CD Player Navigation A2469000112
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Mercedes-Benz Vito Viano W639 Engine Control Unit Module ECU A6111534979 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 .