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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Wiring Mercedes X164 Dashboard Lower Control Panels Switch Harness A1645403706
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BMW F10 F11 520d Diesel N47N 184HP Engine ECU Kit DDE 8513242 CAS4 Key
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Audi A6 C6 Electric Parking Hand Brake Module Control Unit ECU 4F0907801B
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ECU Mercedes W124 E280 M103.940 Engine Control Unit Automatic Jetronic
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Radio Player Mercedes W204 COMAND Navi CD Head Unit A2048700196
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BMW F20 F21 F22 F30 F31 F32 F36 Front Electronic Module Control Unit FEM 9292656
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Audi S8 D3 Valve Block Air Suspension Control Unit Module 4F0616013
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BMW X1 F48 Differential Lock Module Rear Axle Control Unit ECU 8655341
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Vauxhall Opel Astra G Display Screen Multifunction Unit Dashboard 009133265
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Engine Wiring Mercedes W212 Diesel OM651 Cable Loom Harness A6511505933
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BMW E60 E90 330d 530d M57N2 ECU Engine KIT DDE 7803369 CAS3 + Key
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BMW X5 E70 X6 E71 Side View Camera Top Rear Control Unit Module 9291387
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Mercedes W221 Bluetooth Module Multimedia Control Unit ECU A2168206526
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Volkswagen Golf Mk7 Audi A3 8V Alternator 14V 140A 1.5 TSI 05E903026B
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Mercedes ML W164 PDC Module Parking Distance Control Unit Sensor A1645450216
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Ford Fiesta MK7 1.6 TDCI Diesel Engine Control Unit ECU 8V2112A650KE Manual
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Mercedes Vito Viano W639 Side Sliding Door Control Unit Module ECU A6399000300
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BMW F10 F11 Rear Bumper PDC Wiring Loom Cable Harness F01 F12 9336380
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BMW 3 6 X3 Series E46 E63 E83 MINI R50 R53 Control Unit Xenon Light 1307329074
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Audi A1 8X 1.4 TFSI CZCA Alternator Generator 04C903023T
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Mercedes W212 Fuse Box Rear SAM Relay Control Unit Module A2129001306
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Mercedes W140 ABS Control Unit ASR + PML Module ECU A0185459132
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BMW F20 F21 F30 F31 F32 F34 LCI Starter Motor Bosch B48 Petrol 8621838
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Audi A5 8T Head Unit Multimedia Screen Display CarPlay Infotainment Unit
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BMW F20 F21 F22 F30 Radio Professional CD Bluetooth Player 9281517
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Audi A3 8P Rear Bumper PDC Wiring Parking Sensor Loom Harness 8P3971085
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Mercedes W447 OM622 Diesel Engine Alternator Generator A0009064022
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Audi Q7 4L Air Suspension Level Height Adjustment Compressor Pump 4L0698007A
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Engine Starter BMW F20 F21 F22 F30 F32 N47N Diesel Motor Apec 0986024980
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Mercedes W221 Prefuse Fuse Distribution Box Unit Front A2215401250
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BMW 1 Series E87 LCI Footwell Light Control Module ECU LOW PL2 FRM II 9204524
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BMW E90 Xenon Footwell Light Module Control Unit ECU PL2 FRMFA 9128184
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Tailgate Lift Module BMW F31 F36 Mini F60 Trunk Control Unit Rear ECU 7481616
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Mercedes-Benz E-Class A207 W207 Convertible Air Module System Control Unit
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Ford Fiesta MK7 Battery Box Tray Housing Holder Bracket 8V2110723BC
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BMW F10 F30 330d 530d 258HP Engine Control Unit N57N ECU DDE 8577835 Automatic
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Mini Cabrio R57 Roof Operating Unit Light Switch Panel 3450545
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Alternator BMW F87 M2 F80 M3 F82 F83 M4 S55 Engine Generator 250A Denso 7848603
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Mini Countryman R60 Fuse Distribution Box SPEG High DC/DC H7 9809382
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Starter Motor Land Rover Freelander 2 Diesel Engine Actuator LR003468
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Mercedes W176 W204 Digital Audio DAB Receiver Control Unit Module A1669003407
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Mini One R56 N12 1.4 95HP Petrol ECU Control Unit Kit DME 7589971 + CAS3 + Keys
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BMW E90 M-Audio Controller System Control Unit Module Navigation 9186215
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Footwell Module Mini R56 LCI Light Low EKS ECU PL3 FRM3R Lear 3457426
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Light Module Mini R57 LCI Cooper ECU Footwell FRM3R PL3 High EKS Lear 3457586
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Parking Sensor Mercedes W169 W245 PDC Distance Control Unit Module A1699007400
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Mercedes W245 B180 CDI 640.940 Engine Control Unit ECU A6409004600 Automatic
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Electronics Charging BMW E81 E87 E90 E91 Hands Free MULF2 9195246
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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 .