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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Navigation System BMW E90 E91 E92 Professional CCC Sat Nav Controller 9150961
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Mini Cooper One R55 High SPEG DC/DC M3 Fuse Distribution Box 3451925
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ECU Mercedes C205 C250d Diesel OM651.921 204HP Engine Control Unit Automatic
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Audi A5 8T 2.0 TFSI Starter Motor Engine 079911023D
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Engine Wiring Mercedes W212 Diesel OM651 Cable Loom Harness A6511505933
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Driver Seat ECU Mercedes W203 A209 W211 Memory Control Unit Module A2118704626
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BMW Mini Cooper One R50 R53 Body Control Unit Basic Module BCM 6935645
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Alternator BMW F20 LCI F30 Mini F56 F60 Alternator Generator DENSO 180A 7640132
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BMW E61 Body Control Module Unit ECU BCM KBM High 6957529
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Mercedes-Benz W202 C208 W208 Parking Sensor Wiring Cable Rear PDC A2085403508
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BMW Z4 E85 MINI Cooper One R50 R52 R53 Speed Sensor
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Mini Cooper R55 R56 IBS Negative Battery Lead Cable
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BMW X5 X6 Series E70 E71 Navigation System Car Computer CIC 9222855
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BMW 3 Series E46 Petrol Cable Alternator Starter Base B+ Wire 7511320
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BMW X5 E70 Head Unit CIC DAB Professional Navigation System Controller 9239226
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Ford Transit MK7 CD Player Radio Stereo Audio Head Unit 8C1T18C815AD
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Mercedes W221 Fuse Box Control Unit SAM Module Relay A2215403250
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Mercedes Sprinter W906 Radio CD Player Audio Stereo Head Unit A9069000103
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Chrysler Grand Voyager Diesel Engine 2.8 CRD Starter Motor 04868860AA
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BMW F10 F20 F30 VDC Rear M Sport Suspension Control Unit Module 6870360
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Skoda Fabia 5J Roomster Body Comfort Module Control Unit 5J0959433A
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Volkswagen Tiguan 5N Air Module Control Unit ECU Module 5N0959655A
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BMW G11 G12 G30 G32 G14 Starter Cable Alternator Cable Starter-Base B+ 8595355
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Footwell Light Module Mini R60 Unit Low EKS ECU PL3 FRM3R 3456587
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BMW E60 LCI E90 E91 325d 525d M57N2 Engine ECU Kit DDE 7811151 CAS3 Keys Manual
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Mercedes Sprinter W906 Door Module Front Right Control Unit A9068203926
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Mercedes W176 W246 Comfort Module Central Gateway Control Unit VST A1769001101
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Mercedes W212 Front Fuse Box SAM Relay Control Unit Module A2129008507
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BMW E65 E66 E67 Sport Driver's Side Air Module Steering Wheel Grey 6761952
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BMW E81 E87 E90 LCI 118d 318d N47 ECU Engine Control Kit DDE 8518167 Manual
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BMW E60 LCI Light Control Module Unit Controller Lear LME6X AHL 9154944
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Audi A5 F5 45 TFSI QUATTRO Starter Motor Engine Denso 06H911024C
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Mini Cooper F54 F56 F60 JCW B48E 306HP Engine ECU Kit DME 5A4C367 BDC Key
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Mercedes C219 Rear Bumper PDC Wiring Parking Sensor Loom Harness A2195404605
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Engine Wiring Mercedes W204 OM651 Diesel Harness Loom DDE A6511503233
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Mercedes C117 CLA45 AMG M133.980 4-Matic Engine Control ECU Kit A2709002100 Key
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Mercedes Sprinter W907 W910 Front SAM Body Control Module Unit ECU A9079000806
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Fuse Box Mercedes CLK W203 W209 Front SAM Module Control Unit A2095451401
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Starter Motor BMW E46 E60 E83 E53 M57N Diesel Engine Starting Unit 2KW 7788680
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Head Unit Mercedes GLA X156 Radio Media Player Navigation Switch A2469000816
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Alternator Mini Cooper R55 R56 R57 R57 R58 Generator Petrol 7575650
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Mercedes W166 C292 Fuse Relay Box Cover Trim Panel Lid Housing A1665400224
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Mercedes W204 Fuse Box Relay Control Unit Electric Module SAM A2045453901
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BMW X3 F25 X4 F26 Head Unit Basis Media Navigation System Controller DAB 9399454
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BMW X5 E38 E39 E46 E53 GPS Navigation System Computer Unit 6922720
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Mercedes C209 Engine Kompressor 5 Speed Gearbox GSG Module Control A0015453716
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CAS2 Module BMW E87 E90 CAS2 ECU Comfort Control Unit 61356964051 6964051
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Audi A4 B7 Harman Becker Bluetooth Module Interface Control Unit 8P0862335Q
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Volkswagen VW Touran 1T Alternator Main Cable Wiring Harness Loom 1K0971349EM
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Mini Cooper SD R56 LCI R60 143HP N47N Engine ECU Kit DDE 8517727 + CAS3 + Key
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Mercedes W204 Fuse Box Rear SAM Module Electrical Fuse Unit A2049067702
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BMW 5 X5 Series E53 Fuel Tank Flap Actuator 8355056
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BMW X5 E53 3.0d Diesel M57 Alternator 150V 7792092
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Audi S6 C6 Steering Column Wiper Switch Stalk Cruize Control 4F0953549A
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Audi A6 C6 6-Disc CD Changer Magazine Head Unit MMI 6946989
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VW Volkswagen Golf 6 Polo Radio Head Unit RNS 310 Media Player Unit 3C0035270
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Mercedes R171 Air Module SRS Control Unit Crash Sensor ECU A1718207326
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Audi TT 8J Driver's Side Door Wiring Harness Loom 8J0971029AD
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Ford Transit Mk7 Radio CD Player Head Unit Autoradio 6000 CD 8C1T-18C815-AA
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Mini Cooper R56 LCI ECU Footwell Light Module FRM3R LOW EKS Lear 3456394
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BMW Z4 E89 Roadster Cabrio Convertible Top Module CTM 09264978
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Mini Cooper SD R55 R56 LCI R60 N47N 143Hp Diesel ECU Kit DDE 8519663 CAS3 Keys
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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 .