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 F20 LCI F36 120d 420d B47 190HP Engine ECU Control Unit 8589141 Automatic
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Mercedes Sprinter W910 Battery Box Cover Panel Lid Housing A9106165700
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VW Volkswagen Eos Golf 6 Steering Wheel Column Control Module 1K0953549CP
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Mercedes W177 Multimedia Radio Sat Nav Screen Display Head Unit A1679005925
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Peugeot 308 Citroen C3 C4 1.6 HDI Diesel Engine Alternator Generator 9665617780
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Mercedes W205 Radio Audio Navi GPS Head Unit A2059007815
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BMW F20 Body Control Unit Module REM Fuse Box 9866980
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Mercedes W164 Front Fuse Box Relay Control Unit SAM Module A1645407562
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Alternator Generator Mercedes W204 W212 Diesel Engine Valeo 180A 14V A0009067500
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BMW 5 Series E60 E61 530d M57N 218HP ECU Kit DDE 7796637 + CAS2 + Key Automatic
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Mercedes-Benz A-Class W176 Brake ABS Pump Holder Bracket Mount A2464300210
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BMW F82 M4 S55 431HP Engine Control Unit ECU Kit FEM + Key 8679840 Drivelogic
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Mercedes W205 Display Screen Instrument Cluster Speedo Meter A2059004842
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Gearbox Wiring BMW F07 530d 535d N57 N57S Engine Loom Harness Cables 8506084
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Front Subwoofer BMW F90 M5 G11 G30 Central Right O/S Bass Speaker HiFi 6801076
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BMW E90 E91 E92 330d M57N2 231HP Engine Control Unit ECU DDE 7809944 Automatic
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Mercedes W168 Alternator Generator A0121544502
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Citroen Relay Peugeot Boxer Fiat Ducato Fuse Relay Box Module 1376610080
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Volkswagen Golf Mk5 1K GTI 2.0 TFSI BWA 200HP Engine Unit ECU 1K0907115J Manual
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BMW E60 LCI E90 E91 325d 525d M57N2 197HP Engine ECU KIT DDE 7805288 CAS3 Key
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Mercedes R171 SLK200 M271.944 Engine Control Unit ECU Kit A2710106644 Key Lock
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Mercedes ML W164 Audio Stereo Radio CD Player Head Unit A1648705094
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Mercedes SLK R172 Dashboard Screen Multimedia Display Monitor A1729011402
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Ford Transit MK7 Fuse Box Body Control Module ECU BCM Unit 8C1T-14A073-CG
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Mercedes W212 E220CDI OM651 Engine Unit Module ECU Kit Key Lock A6519005301
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BMW X3 F25 20dX Diesel N47N 184HP Engine Module ECU Kit DDE 8517862 Key CAS4
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Air Module Sensor Mini R57 Cabrio Convertible Crash Control Unit ECU 9807168
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BMW F25 F26 Head Unit Basis Media Navigation System Controller DAB 6821164
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Mercedes ML W164 Diesel Engine Starter Motor A0061516101
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Mercedes Viano W639 3.0 CDI OM642.990 204HP Engine ECU Kit A6421503277 Automatic
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BMW X3 F25 Wiring Loom Cable Seat Passenger's Side Set Memory 9267324
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Adblue Module BMW F40 F44 F45 X1 F48 Control Unit ECU SCR 5A0E219
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Mercedes W211 SAM Module Fuse Box Relay Control Unit A2115456101
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BMW E87 Footwell Light Control Unit Module ECU Lear FRM3R PL2 9230450
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Audi A4 B9 Connector AUX USB Adapter Port Socket 8W0035736
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Dashboard Monitor BMW G30 G31 Onboard Central Display Screen 10,25" 6810511
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Mercedes W447 Glow Plug Relay A622900130
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BMW X5 E38 E39 E46 E53 GPS Navigation System Computer Unit 6922720
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Audi RS4 B8 Body Control Unit Module ECU BCM 8K0907063DJ
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BMW 1 Series e87 ECU BODY CONTROL MODULE H2 61359131778 9131778
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Volkswagen Polo Mk5 6R Radio Multimedia Display Navigation Unit 6C0919603B
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VARTA RAC Accumulator Battery 85Ah 800A 12V RAC004
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Mercedes W203 W211 C209 M271 Petrol Alternator A2711540802
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BMW E82 Footwell Light Control Unit Module ECU FRM3R PL2 Lear 9224590
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Mini Cooper D R56 Diesel W16 1.6 109HP ECU Kit DDE 7809794 CAS3 Key Automatic
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Audi A4 B7 Stereo Radio Audio Head Unit CD Player 8E0035186AK
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BMW E88 Footwell Light Module Control Unit ECU NSW PL2 FRM II 9175652
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Mercedes AGM Accumulator Battery 92Ah 850A 12V Varta A0019828208
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Audi A5 8T Body Control Comfort Unit Module BCM Convenience Unit ECU 8K0907064CQ
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BMW 5 7 Series E61 E65 Module Control Unit Trunk Lid Rear Tailgate Lift 6939481
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Positive Cable BMW Z4 E89 Convertible Battery Plus Pole Power Red 9249103
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BMW E60 M5 Light Control Module Unit Lear LM E6X Lear 9112629
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Mercedes W212 Fuse Box Rear SAM Relay Control Unit Module A2129003922
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Dashboard Monitor BMW F90 M5 G30 Onboard Central Display Screen 10,25" 9825936
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Audi A3 8P Door Wiring Front Right O/S Harness Loom Cable 8P4971029E
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Ford Transit MK7 CD Player Radio Stereo Audio Head Unit 8C1T18C815AD
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BMW 5 Series E60 E61 Wiring Loom Cable Seat Passenger's Side Left N/S 6939061
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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 .