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 W209 Radio Head Unit Media Player Navigation Screen A2098205489
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Audi A4 B7 Bluetooth Module Interface Control Unit Hands Free 8P0862335D
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Ford Transit MK7 Body Control Unit Module BCM Fuse Box CC1T14A073BD
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Starter Motor Mercedes W204 W212 W639 OM651 Diesel Engine Denso DSN967
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Mini One R50 1.6 W10 90HP Engine Control Unit ECU Kit DME 7557395 Manual
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Audi A3 8P Crash Impact Airbag Sensor Unit Module Air Bag 8E0959651B
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Audi A3 8P Central Gateway Control Unit Module Relay ECU 1K0907530D
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BMW X5 E70 Footwell ECU Light Control Unit Module FRM II Lear 9170454
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Antenna Amplifier BMW F01 F10 F13 Aeral Diversity 868 MHZ Control Unit 9267085
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Parking Module Mercedes W207 W212 PDC Distance Control Unit ECU A0009008004
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Mercedes W212 Display Screen Multifunction Navigation Dashboard A2129015706
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Airbag Module Mercedes W207 C207 Coupe Air Bag SRS Control Unit ECU A2079014200
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Mercedes Sprinter W906 Fuse Box Relay Control Unit Module A9065454301
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Air Intake Duct Peugeot 3008 Air Intake Channel Unit Duct 9683140380
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Mercedes W906 Fuse Box Relay Control Unit Electric Module SAM A9069005504
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GM Vauxhall Opel Relay 4-Pin Multi Use Glow Plug Unit Green 03447012
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Mini R50 R52 R53 Radio Boost CD Player Head Unit 9142414
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Renault Trafic II CD Radio Audio Player Stereo Head Unit 281150049RT
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Mercedes W168 Vaneo W414 Diesel Engine Speed Starter Motor A0051511601
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Mercedes-Benz A W168 CDI Battery Terminal Positive Cable Wiring A1685401130
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Seat Wiring BMW F20 F30 F31 F34 Passenger's Side Cable Loom Harness 9264625
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Audi A3 8P Steering Wheel Position Angle Sensor Control Unit Module 8P0953549B
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Radio Head Unit Ford Transit 6000 CD Media Player Unit 8C1T-18C815-AD
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Mercedes W906 311CDI OM646.985 109HP Engine Unit Module ECU A6461506378 Manual
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Mercedes W906 OM651.957 Diesel Engine ECU Kit Unit A6519002600 Key Lock Manual
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BMW 3 Series F30 F80 M3 Boot Trunk Lid Tailgate Wiring Loom Harness Cable Set
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Renault Trafic Scenic 1.9 DCI Diesel Starter Motor Valeo 8200628419
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Ford Transit Battery Cover Fuse Box Trim Panel Lid YC15-10A687-A9W
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BMW E46 Coupe Convertible Door Wiring Passenger Side Cable Harness Loom 6903096
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Mercedes Vito W639 Door Module Front Right O/S Control Unit ECU A6399003200
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Mercedes Vito W639 Door Module Front Left N/S Control Unit ECU A6399003100
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BMW X3 E83 Z4 E85 2.5i M54 192HP Engine ECU DME Control Unit 7532140 Automatic
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BMW X5 E53 Light Check Module Control Unit ECU Lear LCM IV LWR 6961142
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BMW X5 E53 Onboard Computer Navigation System Monitor Widescreen 6980246
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Mercedes W639 Fuse Box Relay Control Unit Electric Module SAM A6395450601
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Ford Transit Fuse Box Cover Housing Lid Trim Cap 6C1T14A076C
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Audi A3 8P 2.0 TDI 140HP Diesel Engine Control Unit ECU Module DSG 03G906016DT
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BMW X5 E70 Footwell ECU Light Control Unit Module Xenon FRM II Lear 9170453
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Audi A3 8P Body Control Comfort Unit Module BCM Unit 8P0907279C
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Audi A3 8P Battery Box Tray Housing Holder Bracket Cover 1K0915333B
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Gearbox Module Mercedes S203 W203 C200 Automatic Control Unit ECU A0325453232
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Mercedes W203 Kompressor M271 Positive Battery Cable A2035400330
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Ford Transit MK7 Battery Holder Bracket Mount Strap Clamp 6C1T10A721AB
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Ford Fiesta MK7 Battery Box Tray Housing Holder Bracket 8V2110718AB
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Sam Unit Mercedes S203 W203 Rear Module Fuse Box A2095450701
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PDC Display Mercedes W639 Front Parking Sensor Screen Control Unit A0015422623
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Fuse Box Mercedes CLK W203 W209 Front SAM Module Control Unit A2095451401
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Mercedes CLK W209 Convertible Fuse Box Rear SAM Module Control Unit A2095450901
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BMW F10 Tailgate Module Rear Boot Trunk Lid Control Unit ECU 7317512
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Mercedes ML W164 Window Windscreen Rain Light Sensor A1648203085
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Ford Fiesta MK7 Display Screen Multifunction Radio Dashboard 8A6118B955BL
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BMW E93 ECU Body Control Module Unit PL2RR JBBFE IIIR H3 Junction Box 9227186
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Mercedes W205 W213 10Ah 170A Auxiliary Additional Generator Battery A0009829508
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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 .