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 Volkswagen New Beetle 1.6 BFS Petrol Starter Generator Motor 02A911023L
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Land Rover Range Sport L320 Diesel Engine Alternator Generator AH22-10300-AB
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Mercedes W204 Becker Map Pilot Navigation Module Sat Nav Navi Europe
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Audi S4 B7 Steering Wheel Air Module Driver's Side 8E0880201DH
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BMW X3 F25 20dX Diesel N47N 184HP Engine Module ECU Kit DDE 8513184 2 Keys CAS4
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BMW F20 LCI 116d B37 Engine Control Unit Module ECU DDE 8589145 Automatic
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BMW E60 Rear Handle Carrier Door Comfort Access Module Right O/S 191588
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Wiring Mini R55 R57 LCI R58 R60 Petrol N18 Injection Ignition Harness 7620625
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Footwell Light Module Mini R60 Unit Low EKS ECU PL3 FRM3R 3456587
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Audi TT 8N Headlight Range Control Module Unit ECU 4B0907357
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Mini Cooper S R56 N14 1.6 174HP ECU Kit Unit DME + CAS3 + 2 Keys 7586134 Manual
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Mini Navigation Head Unit R55 R56 R57 LCI R60 R61 CHAMP 2 Sat Nav DAB 9286640
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BMW 5 6 Series E60 E61 E63 Driver Side Door Airbag Control Unit Module 6963013
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Fuse Box Mercedes W212 Central Fuse Relay Control Unit Module A2129000122
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Steering Column Mercedes W205 C253 Switch Cluster Wiper Cruise Control Automatic
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FEM Module BMW F20 F21 F22 F30 F32 ECU Control Unit Fuse Box 8733505
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BMW Mini One R56 Petrol N12 1.4 N12B14A 95HP ECU Kit DME + CAS3 + 2 Keys 7600019
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Mercedes W169 A180 266.940 Engine Control ECU Kit A2669000200 Key Lock Automatic
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Volkswagen Passat B7 PDC sensor Wiring Loom Harness Cable Rear Bumper 3AF971104L
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BMW X3 G01 Headlamp LED AHL Adaptive Headlights Control Module FLM 01 7472765
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Battery Cable Volkswagen VW Golf Mk6 VI Positive Plus Pole Lead 3C0971228K
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BMW F10 PDC Rear View Backup Camera Control Module Unit ECU 9288002
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Navigation Head Unit BMW E81 E87 E90 LCI Car Computer Sat Nav MID 9226345
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Mercedes W906 Door Module Front Left Right N/O/S Control Unit ECU A9069000501
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Mercedes W203 Kompressor M271 Positive Battery Cable A2035400330
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Starter Motor Mercedes W203 W210 W211 Diesel Engine Actuator A0051511301
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Mercedes W176 Multimedia Box Wiring Loom Electrical Harness A1765401201
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Audi A5 8F Cabriolet Door Card Wiring Harness Front Driver's Side 8F0971035H
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Mini Cooper R50 W10 116HP Engine ECU Kit DME 7513981 + EWS + Key Manual
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Ford Transit Connect Radio CD Player Stereo Head Unit F1BT18C815HE
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BMW 1 Series E88 Footwell Light Control Module ECU PL2 FRM II Lear 9197178
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BMW 1 3 Series E87 E90 E91 Mini R56 R57 Seat Control Unit Module Heating 6926433
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Mercedes W204 COMAND Navigation CD Player Radio Sat Nav Head Unit A2048703390
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Mini Cooper S R55 R56 R57 N14 1.6 174HP ECU Kit DME 7641003 CAS3 + Key Manual
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Audi A6 C6 2.0 TDI Alternator Generator 180A 14V Diesel Engine Unit 03G903016N
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Mercedes Vito W639 2.2 CDI 651.940 4-Matic ECU Kit Engine A6511501879 Key Lock
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MINI Cooper One R50 R52 Petrol W10 Alternator Generator 110A 7550997 7550319
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BMW E88 Xenon Footwell Light Control Module Unit PL2 FRM II Lear 9175653
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Mercedes CLK W209 Radio CD Player Stereo Audio Head Unit A2098202689
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Mercedes W212 Transmission Control Unit Module VDO EGS 722.646 A0015452616
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BMW 1 3 Series E81 E87 E90 E91 E92 E93 Parking Control Module Unit PDC
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Mini R56 Disc High Navigation DVD 2009-2 Road Map Europe T1000-14848
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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 .