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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VW TOURAN 1T Steering Angle Steering Wheel Column Control Module ECU 1K0953549AF
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Audi A3 8P CCM Covenience Control Module Unit Relay Board ECU HELLA 8P0959433F
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BMW E83 E83N E85 E86 Top-hifi System Amplifier 9125751
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BMW F20 F21 F22 F30 F31 F32 F36 Front Electronic Module Control Unit FEM 8733500
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Citroen Relay III Body Control Module BCM BSI Unit Fuse Box 46862934
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BMW E60 E87 E90 Telematics Bluetooth Control Unit Module 9231093
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BMW F20 F21 Air Conditioning A/C Climate Control Unit Module ECU 9311849
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Vauxhall Corsa D 1.3 CDTI Z13DTH Diesel Engine Control Unit Module ECU 55568385
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BMW E60 E90 330d 530d M57N2 ECU Engine Kit DDE 7803369 CAS3 + Key Automatic
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Mercedes W211 Battery Fuse Box Control Unit Module A2115460641
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VW Polo 6N Immobilizer Control Unit Module ECU 6H0953257B
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BMW Countryman R60 R61 Centre Console Retaining Bracket Rail Rear 9801622
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Audi A3 S3 8V Head Unit MIB High Multimedia Player CD SD Card Sat Nav 8V1035035A
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Fuse Box Mercedes W203 W209 Front Relay Control Unit Module SAM A2095451101
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Mercedes W906 313 CDI OM646.986 129HP Engine Unit Module ECU Manual A6461506272
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Mercedes W205 C253 Control Unit Module Bracket Mount Holder Support A1771502073
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Mini Countryman R60 Fuse Distribution Box PL3 SPEG H7 DC/DC 9809590
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Mercedes Citan W415 109 CDI OM607.951 Engine Control Unit ECU 237104376R Manual
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BMW i3 I01 94Ah Battery Management Electronic Control Unit Module 8648060
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Dashboard Monitor BMW Z4 E85 E86 Central Information Display Screen 9137034
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Mercedes-Benz Vito Viano W639 Alternator Generator Diesel 200A A0131541002
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BMW G32 VDP Low Adaptive Suspension Control Module Unit ECU 6896421
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Audi A4 B7 Aerial Antenna Amplifier Module 8H0035225R
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BMW 3 Series E90 E91 E92 325D M57N2 Diesel Manual Engine Wiring Loom Harness
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Volkswagen Touareg 7L Body Comfort Module Control Unit ECU 7L0959933F
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Mercedes W177 Instrument Cluster Navi Sat Display Screen Multimedia A2479001617
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Audi A4 B7 2.0 TFSI BGB Quattro 200HP Engine ECU Kit Ignition 8E0910115H + Keys
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Mercedes R171 M272.942 SLK300 231HP Engine Module ECU Kit A2729000300 Key
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Mercedes W207 Head Unit Navigation Media Cable Wiring Harness A2074402805
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BMW F30 335d F32 F36 435d N57 313HP Engine Unit ECU Kit DDE 8578082 Key FEM
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Citroen Berlingo Peugeot Partner BCM Module Body Control Module 981218858002
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Ford Transit Custom Stereo Audio Control Module Head Unit JK2T18D832DL
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Mercedes C207 Battery Cable Starter Alternator Wiring Harness Loom A2044403354
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BMW F10 M5 S63N 560HP ECU Engine Control Unit Module DME 7640373 Dual Clutch
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Mercedes W221 Air Conditioning Climate Heater Control Unit Module A2218709987
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Fuse Box Mercedes W212 CLS W218 Control Unit Relay Module A1645456340
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Bosch S4 002 Accumulator Battery 52Ah 470A 12V
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Ford Transit Antenna Amplifier Control Unit Module Controller 6C1T15K602AE
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Audi A4 S4 B9 A5 A5 F5 3.0 Petrol Alternator Generator 14V 150A 06E903024L
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Audi A6 C6 Panel Radio Multimedia Switch Control 4F2864261AP
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Mini Cooper S R55 R56 N14 1.6 174HP ECU Kit DME 7587548 + CAS3 + Key Manual
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Mini Cooper R56 Fuse Box SPEG High DC/DC H4 3455235
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BMW X1 E84 18dX 143HP Diesel N47N Engine Control Unit ECU DDE 8574351 Manual
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Citroen Dispatch Peugeot Expert Display Screen Dashboard Monitor Unit 9664222280
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Audi A4 B9 BCM Body Control Module Unit ECU 8W0907064CB
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Ford Transit Mk8 Starter Motor Engine Actuator Diesel 2.2 TDCi CC1T-11000-BB
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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 .