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 Air Module Sensor Control Unit ECU A4479001000
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Audi Q2 GA NAV Multimedia Navigation Display Screen MMI 8,25" 81A919605B
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BMW F20 F30 Air Duct Front Slam Panel Flap Control Motor Drive Unit C11492-104
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Mercedes W118 W177 W247 Front Radar Distance Control Unit Module A0009056121
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Mercedes Sprinter W907 Parking Control Unit Module Sensor Parktronic A0009002720
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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 3 Series E46 Valvetronic Valve VVT Control Unit Module ECU 7516809
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Volkswagen Golf Sportsvan Fuse Box Engine Compartment Relay Unit 5Q0937125B
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Renault Trafic III Opel Vivaro B Air Module Control Unit ECU 93868139 985101902R
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Audi S5 F5 Blind Spot Radar Distance Control Module Right O/S Master 4M0907566D
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BMW F30 F31 F32 Control Unit Module Active Sound Design 6820696
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Mercedes W177 Automatic Gearbox Wiring Loom Harness Cable A2517253714
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Alternator Generator Peugeot 207 Diesel 12V Electrical Unit 9646321780
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Module Land Rover Freelander 2 ECU Front Door Window Control Unit 6G9T-14B533-KL
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VW Volkswagen LT 35 Glow Plug Module Relay Control Unit Black 2D0911253
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Volkswagen T-Roc Golf Mk8 USB-C Port Socket Double Rear Centre Console 2G6035954
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BMW E81 E87 E90 LCI Professional Navigation System Car Computer CIC 9198826
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BMW E82 E90 E92 Aerial Antenna Amplifier Diversity DAB Control Unit 6928935
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BMW E81 E87 LCI 116i 2.0 Engine Petrol N43 ECU Kit DME 7599881 CAS3 Key Manual
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Audi S4 B8 Alarm Siren Body Sound Impact Actuator Speaker 4H0907601A
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Mercedes W177 W247 Battery Fuse Box Positive Distribution Terminal A2479061803
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BMW 3 X3 Series E46 E83 1 Fuse Distribution Box 8364540
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Audi A4 B7 Audio Sound System Amplifier Bose 355013 5631B6
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Mini Countryman R60 Light Module Footwell Module PL3 FRM3R Lear ECU 3457587
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Alternator Mercedes ML W164 GL X164 Diesel OM629 Bosch 14V 220A A6291500450
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Ford Mondeo Mk4 Positive Plus Battery Wiring Harness Cable 8G9T-14A280-PAF
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BMW X3 F25 20dX Diesel N47N 184HP Engine Module ECU Kit DDE 8513184 2 Keys CAS4
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Starter Motor Renault Trafic II Opel Vivaro A Diesel 2.5 dCi 8200106788
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Mercedes Universal Fuse Relay Electrical Unit Set Bag N000000 003996
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BMW 5 6 Series E60 E61 E63 Passenger Side Door Airbag Control Module 6939712
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Mercedes-Benz E W210 Estate CDI Gearbox Control Module Unit ECU A0305454932
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BMW E65 E66 Dashboard Control Display Screen 8,8" 6986301 9137123
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Xenon Adaptive Headlight Module BMW F22 F23 Control Unit Driver Module 7363090
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VW Volkswagen Golf Mk7 Multimedia MMI Sat Nav Radio Display Screen 3G0919605D
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Porsche Macan 95B Headlight Control Module Unit Hella 7PP907357L
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Mini R55 R56 LCI R60 R61 D N47N Engine Injector Module Wiring Harness Cable
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Mercedes W906 311 CDI 646.985 109HP Engine Unit Module ECU A6461500477 Manual
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Mini Cooper R55 R56 R57 LCI Radio Boost CD USB Bluetooth Head Unit 3456515
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Audi A4 B7 Sat Navi Stereo Radio Audio Head Unit CD Player 8E0035192T
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BMW 3 Series E90 E91 E92 E93 Engine Starter Motor 0 986 021 230
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Mini Cooper R56 Footwell Light Control Unit Module LOW ECU PL3 FRM II 3452093
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Mercedes W176 A200 CDI OM651.930 136HP Engine Module ECU A6519009502 Automatic
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Cassette Player Citroen Berlingo Peugeot 206 Audio Head Unit 964544367700
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Mini Cooper One R60 Footwell Light Module AHL EKS ECU LEAR PL3 FRM3R 3456988
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BMW X3 X5 Series E53 E83 PDC Parking Distance Control Unit Active Module 6921414
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Air Module BMW E60 E61 E63 Gateway High Control Unit ECU 6960383
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Chrysler Grand Voyager Alternator Mounting Bracket Carrier LRA02830
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Audi A6 C6 3.0 TDI 240HP CDYA Quattro Engine ECU Kit 4F9910402A Ignition + Keys
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3X Relay BMW E60 E87 E90 F10 F30 4 Pin Tyco Set Black 6901469
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Ford B-Max Front Door Module Control Unit Driver's Side CV1T-14B531-AE
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BMW F40 MINI F56 F57 F60 Control Unit Box Cover Trim Bracket 8581370
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Mercedes W906 Fuse Box Relay Control Unit Electric Module A9065454701
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Kia Ceed Sportage Hyundai Relay Unit 5 Pins 30/20A Blue 95225-1F100
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BMW X3 F25 Tailgate Trunk Lid Wiring Harness Rubber Cover Right O/S 9285768
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Alternator Generator BMW E90 E91 E92 E93 LCI E84 F25 Diesel N47N 8507624
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BMW E90 LCI Max Brose Footwell Light Module Control Unit ECU FRM3R PL2 6827064
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Door Module Mercedes W169 W245 Front Left N/S Control Unit A1698206926
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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 .