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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Audi A3 8V Gateway Module Control ECU Unit 5Q0907530M
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Audi A5 8T Gateway Control Module Unit ECU 8T0907468F
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BMW 1 Series F20 F21 116d N47N 116HP ECU Kit DDE 8517874 + Key + FEM Manual
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BMW F10 F11 535d F13 640d N57Z 313HP ECU Kit DDE 8578115 Key CAS4 Automatic
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Air Module BMW X5 F15 X6 F16 ECU ICM Control Unit 6870277
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Mini Cooper One R50 R52 W10 Petrol Alternator Generator 110A 7550997 7515426
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Mercedes Vito W447 Fuse Box Relay Control Unit Electric Module SAM A4479005807
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BMW F10 F11 F12 ECU ICM Control Unit Module 6856874
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Mercedes W140 Seat Heated Heating Control Unit Module ECU A1408201526
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Mercedes W906 Fuse Box Control Unit Module ZGS Temic A9069006303
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BMW F20 F21 F30 F32 LCI Headlight Ballast Control Unit Module FLE2 LOW 8494840
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Mini Cooper R57 Wiring Loom Harness Rear Trunk Lid 9278356
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Audi A4 B7 Aerial Antenna Amplifier Module 8H0035225R
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Peugeot 3008 PDC Module Parking Distance Control Unit ECU 9666663780
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Audi A4 B7 Body Comfort Control BCM Supply Module Unit ECU 8E0959433CQ
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Mercedes W203 W209 W221 Windscreen Rain Sensor Control Module A2218702826
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Mini One D R50 Diesel W17 88HP Engine ECU Kit DDE 7792544 + EWS + Keys Manual
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Volkswagen Golf Mk6 VI Air Module Control Unit ECU 5C0959655B
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Mini Cooper S R55 R56 R57 N14 1.6 174HP ECU Kit DME CAS 3 + Key 7587548 Manual
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Alternator Generator Mercedes R171 W209 W211 M272 Petrol Engine 150A A2721540002
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Vauxhall Corsa D 1.3 CDTI Z13DTH Diesel Engine Control Unit Module ECU 55568385
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BMW E87 E90 E91 E92 CCC CD Professional Navigation System 9138448
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Mercedes W169 W245 Petrol Engine Starter Motor A0061510301
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Audi Q7 4L Radio Multimedia Receiver Control Module Unit 4E0035541S
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Audi S5 8T A6 C7 Engine Starter Motor 3.0 TFSI Petrol CGWC 06E911021D
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Airbag Module BMW F20 F21 F30 F31 F32 ECU ICM Control Unit Air Bag 6858700
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Audi A3 8P Gateway Interface Onboard Supply Control Module Unit ECU 8P0907279P
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BMW E87 LCI E90 118i 318i N43 Petrol ECU Engine Control Unit DME 7579142 Manual
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Engine Control Unit BMW F10 F30 320d 520d N47N 184HP ECU DDE 8518423 Manual
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Integrated Supply Module BMW F40 X1 F48 Mini F55 F56 Control Unit Z11 8642761
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BMW 1 3 F20 F21 F30 F31 Parking Assistant PDC Control Unit Module 6851822
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BMW E30 E31 F01 F02 F10 F11 Top View Mirror Camera 9240274
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BMW Mini Cooper One R55 R56 1 Multifuse B Battery Power Distributor 9136726
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Mini R55 R56 R60 R61 Engine Starter Motor Mitsubishi 7645594
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BMW F20 F21 F30 F31 REM Rear Electronic Module Fuse Box Control Unit V 19317173
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Audi A7 S7 4G8 A8 D4 4.0 TFSI Starter Motor Denso Petrol Engine 079911024
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Audi A6 C7 Central Gateway Control Unit Module Relay ECU 4G0907468AC
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BMW 5 Series E60 E61 Cable Loom Driver's Door Wiring Harness 6972569 6972564
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BMW E81 E87 LCI E90 116i 316i 1.6 N43 ECU Kit DME 7583225 CAS3 Key Manual
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Mini R55 R56 Engine N14 1.6 174HP ECU Kit DME 7610081 CAS3 + Key Manual
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BMW E92 ECU Body Control Module Junction Box L1 PL2 JBBFE 9150718
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BMW X5 E70 CD Player Head Unit CIC DAB Professional Navigation Sat Nav 9257200
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Skoda Octavia 5E Sat Navi Stereo Radio Audio Head Unit Player Screen 5E0919605J
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BMW X5 E38 E39 E46 E53 GPS Navigation System Computer Unit 6922720
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Mercedes C207 W212 Fuse Box Relay Control Unit SAM Module A2129004500
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Mini R57 Convertible ECU Footwell Light Module High EKS PL3 FRM3R 3455896
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Head Unit BMW F20 F21 F22 F30 F31 LCI Sat Nav Radio Media Navigation 8708257
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Alternator Generator BMW F10 F20 F30 LCI Diesel Engine Unit Denso 180A 7640875
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Relay Box BMW E60 E61 E63 E64 Rear Power Distribution Fuse 6906558
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Renault Master III DCI Alternator Support Bracket Mount 117103585R
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Mercedes Sprinter W906 Fuse Box Relay Module Control Unit A9065454401
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Audi A5 8T 2.0 CNCD Petrol Starter Motor 06H911024B
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Radio Player BMW F20 F21 F22 F30 F31 CD Bluetooth Head Unit Control 9310461
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Audi Q2 GA Wireless Charger Centre Console Phone Charging Module Unit 4N0035502B
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Audi A4 B8 2.0TDI CAHA 170HP Quattro Engine ECU Kit Ignition + 2 Key 03L906022RM
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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 .