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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SRC Module Mercedes W213 Air Safety Module SRS Control Unit ECU A2139009022
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Peugeot 508 5008 2.0 HDI Galaxy MK3 2.0 TDCI Alternator Bracket Mount 9688628680
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BMW E81 E82 E87 LCI E88 123d Engine N47S ECU Kit DDE 8518168 CAS3 + Key Manual
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Parking Control Module Mercedes C118 W177 W247 PDC Bluetooth Unit A0009004434
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Audi A4 7B 2.0 TFSi D6G519 Engine Starter Motor 06D911023
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BMW E93 Hifi System Amplifier Sound System Amp 9145162
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VW Caddy 1.9 TDI BLS 105HP Engine Control Unit Module ECU 03G906021PD Manual
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Audi A7 4G8 Westfalia Towing Hitch Module Control Unit 506737
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Engine Harness Mini F56 F60 BMW F40 F46 Sensor System Module 2 Wiring 8678972
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BMW E81 E87 E90 E91 E92 6-disc CD Changer Without Magazine 9119707
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BMW E60 E61 Body Gateway Module KGM HIGH 9118729
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Mercedes-Benz A B Class W169 W245 Alternator Generator Petrol 90A A2661541202
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Mercedes C CLK Class W203 C209 Sam Control Module Fuse Box Rear A2035453401
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Mercedes ML W163 Window Windscreen Rain Light Sensor Module A1638200726
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Mercedes W176 W242 W246 Alternator Generator Bosch A180 Petrol A0009061903
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Mercedes ML W164 Rear SAM Module Control Unit Fuse Box A1645400701
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BMW X3 E83 Light Control Unit Module LEAR LM II LWR 3451625
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Mercedes C207 Stereo Radio CD Player Head Unit A2129004008
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Volkswagen Touran Engine Starter Motor 02M911023N
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Diversity Antenna Amplifier Mini F57 Convertible DAB Module Unit 9309991
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BMW 1 3 5 6 7 X1 X3 X5 X6 Series E81 E87 E90 Cable Audio Aux In Socket 178cm
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Heater Resistor Volkswagen VW Touran 1T Blower Motor Fan Resistor 3C0907521
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Mercedes W213 Door Module Front Right O/S Control Unit A2139004409
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Audi A7 4G8 Tailgate Lift Boot Lid Control Unit Module Trunk 4G8959107N
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Seat Wiring BMW X3 F25 X4 F26 Driver's Side Loom Cable 9316654
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BMW E60 E63 E64 On-board Navigation Monitor Display Screen 6,5"
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Mercedes W203 Gearbox Transmission Control A0325451232
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Audi RSQ3 F3 2.5 TFSI Quattro 400HP DNWA Engine Unit ECU 07K907309F Automatic
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Battery Cable BMW X3 F25 X4 F26 Underfloor Positive Plus Lead Harness 9321002
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BMW E88 ECU Body Control Module H4 Junction Box PL2RR JBBFE IIIR 9270385
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Mini R50 R52 Alternator Generator 110A Benzin 7550997 7550319
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BMW 3 X3 Series E46 E83 Fuse Distribution Box 8364530
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BMW E60 LCI E90 M57N2 325d 525d 197HP ECU Kit DME CAS3 + Key 7809941 Automatic
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BMW Z4 F20 F30 E89 Petrol Alternator Generator 170A 7605478
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Front Fuse Box Mercedes W204 C207 Relay Control Unit SAM Module A2129000206
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Mini Cooper R55 R56 N12 1.6 120HP ECU Kit Engine DME 7640005 CAS3 + Key Manual
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Starter BMW E81 E82 E87N E88 E90 E91 E92 N43 Starter Motor 7550975
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Mini Cooper R55 R56 R57 Petrol N12 DME 7640005 Engine Control Unit ECU
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Volkswagen Touareg 7L Entry Module Keyless Go Control Unit ECU 3D0909139B
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BMW 1 Series 1 E87 6-disc CD Changer Without Magazine 6958198
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BMW E85 Roadster Cabrio Safety Information Air Module 6939811
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Land Rover Freelander Ford Mondeo Focus Airbag Crash Impact Sensor 3M5T14B342AB
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Mini Cooper One R55 R56 R57 Engine Alternator Generator Petrol 120A
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Mini Cooper R56 LCI Footwell Light Module High EKS ECU PL3 FRM3R 3456987
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Body Control Module Mercedes W117 W176 W242 W246 Fuse Box Sam A2469008510
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Alternator Generator BMW F07 F10 N57N N57Z Diesel Engine 230A Valeo 8570672
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Mercedes Sprinter W906 Fuse Box Relay Module Control Unit A9065454401
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BMW E81 E87 E90 LCI Professional Navigation Car Radio Player CIC 9273188
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BMW X3 Series E83 E83N LCI Support Bracket Navigation Computer 3405141
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BMW 1 3 Series E81 E90 LCI Business System Car Infotaiment Computer CIC
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IBS Cable BMW E93 Negative Battery Lead Wiring Harness Control Unit 7587465
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Audi TT FV Stereo Radio Sound System Speaker Amp Amplifier 8S0035465B
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BMW 3 Series E93 Xenon Footwell Light Module Control Unit ECU PL2 FRM3R 9224593
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Sam Module Mercedes S205 Relay Fuse Box Rear Control Module In Trunk A2059007437
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Mini Cooper One R56 High SPEG Fuse Distribution Box H1 3450824
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Audi S5 8T Quattro 4.2 FSI Petrol V8 CAUA Alternator Genarator Valeo 079903015F
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Mercedes Vito W639 Fuse Box Relay Control Unit Electric Module SAM A6399005400
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BMW E60 M-Audio CD Radio Player Head Unit Professional 9131710
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BMW E90 E91 LCI N47N 320ed 320d ed 163HP ECU Engine Control DDE 8510829 Manual
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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 .