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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Part no. 5Q0937084AA
Audi A3 8V Module BCM Body Control Unit Module ECU 5Q0937084AA
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Audi Q7 4L Radio Head Unit Navi CD DVD Player Changer 4L0910110A
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Audi A4 B8 A5 8T 2.0 TDI CGLD Engine Control Unit ECU 03L906018JH Manual
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Audi A6 C7 Fuel Pump Control Unit Module 4G0906093F
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Audi A3 8P Body Control Module Unit 8P0907063G
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Audi A5 Q7 A6 Front Crash Impact Sensor Control Unit 4L0959651
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Audi A5 8T BCM Body Comfort Convenience Module Unit ECU 8K0907289C
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Audi Q7 4L Diagnostic Interface Gateway Control Module Unit ECU 4F0907468N
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Audi A4 B8 2.0 TDI CNHC Diesel Alternator Generator 04L903017A
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Audi A3 8V Headlight Range Cornering Adjustment Control Module 8V0907357A
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Audi A1 S1 8X Fuse Relay Box Module Unit 6C0941824D
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Audi TT 8N Alternator Main Cable Wiring Harness Loom 8J0971349CF
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Audi Q3 S Line BCM Body Control Module Unit ECU 8X0907063AF
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Parking Distance Audi A3 8V TT Mk3 Seat Leon MK3 Control Module 5Q0919283E
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Audi A3 8P TT 8J A4 B7 Ipod Interface Multimedia Storage Compartment 8E0857925B
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Audi TT FV 8S 2.0 TFSI CHHC 230HP Quattro Engine ECU Kit 06K907425B BCM Key
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Audi A3 8V Air Module Control Sensor SRS System ECU Unit 5Q0959655BT
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Audi A8 D4 Dynamic Air Suspension Control Unit Module ECU WABCO 4G0907553G
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Audi A6 C6 Amplifier Audio Sound Control Unit Module Controller 4F0910223M
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Audi TT 8J Gateway Control Unit Module 7N0907530AL
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Audi TT Mk2 8J 2.0 TFSI BWA 200HP Engine ECU Kit Ignition + Key 8J0907115N
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Audi A3 8V Negative Battery Terminal Cable Harness Wiring Loom 5Q0915181H
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Audi Q7 4L Tyre Pressure Sensor Control Module Unit ECU 4F0910274C
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Audi Q7 4L A1 8X Negative Battery Cable Lead Monitoring Module 8K0915181D
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Audi A4 B8 Headlight Headlamp Range Control Unit Module 8K5907357
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Audi A4 B7 Body Comfort Control Body Power Supply Module Unit BCM ECU 8E0907279J
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Audi TT 8J Radio Head Unit CD Audio Player Control Unit 8J0035186J
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Audi TT FV Entry Keyless Kessy Control Module Unit ECU 3Q0959435B
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Audi A3 8P Door Window Lifter Regulator Motor Front Left N/S 8P0959802K
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Audi TT FV Central Gateway Control Unit Module ECU 8S0907468B
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Audi TT FV Air Module ECU Control Unit Crash Sensor 5Q0959655P
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Audi S8 D3 Digital Radio DAB Tuner Receiver Module Kenwood 4E0035583C
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Audi A3 8P BCM Body Control Unit Comfort Module 8P0907063A
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Audi A6 C6 Door Module Front Driver's Side Control Unit ECU 4F0959793R
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Audi A3 8P Multimedia Stereo Sat Nav CD Player Radio Head Unit 8P0057186SX
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Part no. 02E911023S
Audi TT 8J 2.0 TFSI CESA Petrol Engine Starter Motor 02E911023S
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Audi A8 D3 PDC Parking Distance Sensor Control Unit Module Rear 4E0919283C
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Audi A5 8T 5 Door Rear Bumper PDC Parking Sensor Wiring Harness Loom 8K0971104AF
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Audi A4 B7 Door Wiring Harness Loom Front Cabling 8E1971029AA
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Audi Q2 GA A3 8V Front Door Control Module Unit Right O/S 5Q0959393K
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Audi A8 4E S8 D3 Battery Voltage Control Module 4E0910181C 4E0915181C
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Audi Universal SD Card Map Pilot Navigation Europe 2016 8X0919884J
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Audi A3 8V Door Wiring Harness Loom Rear Left N/S 8V5971687K
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Audi A6 C7 3.0 TDI CLAA Alternator Generator Engine Unit Hitachi 059903018R
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Audi Q3 8U Display Screen Multimedia Navigation Sat 8U0857273B
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Audi A4 B8 A5 8T Connector AUX Adapter Port Socket Plug 8K0035474B
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Remote Key Audi A4 S4 B7 8E Radio Alarm Key Fob Opener Button 8E0837220Q
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Audi A1 8X Multimedia Radio CD Player Navigation Head Unit 8X0035183
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Audi A6 C7 PDC Parking Distance Control Module Unit ECU 4H0919475L
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Audi TT 8J 2.0 TDI 170HP CFGB Engine ECU Unit Kit 03L906018DT Manual
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Audi A3 8P CCM Covenience Control Module Unit Relay Board ECU HELLA 8P0959433F
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Audi A4 B8 2.0TDI CAHA 170HP Quattro Engine ECU Kit Ignition + 2 Key 03L906022RM
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AUDI Q5 8R Quattro 3.0 TDI Diesel CCWA CCWB Starter Motor 059911022
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Audi TT 8J Volkswagen Golf Mk5 Gateway Control Unit Module ECU 1K0907530L
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Audi A6 C6 CD DVD Navigation Sat Nav Head Unit 4F0035769B
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Part no. 8K0959663F
Audi A6 C7 Voltage Converter Stabilizer Control Module Unit ECU 8K0959663F
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Audi Volkswagen Seat Skoda Petrol Alternator Generator 14V 140A 06J903023A
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Audi Q7 4L 3.0 TDI Automatic Gearbox Module Control Unit ECU Diesel 0C8927750AL
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Audi TT 8J Body Comfort Control BCM Module Unit ECU 8P0907063AD
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Audi A5 8T 2.0 TFSI CDNB Automatic Gearbox Module Control Unit 8K0927155AA
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Part no. 6R0971228S
Negative Battery Cable Audi A1 8X Volkswagen Polo Mk5 6R Cable 6R0971228S
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Part no. 4G0035061B
Audi A5 8T Navigation System Car Sat Nav Computer Head Unit CIC 4G0035061B
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Part no. 04L907309AB
Audi Q3 8U 2.0 TDI DFUA 184HP Quattro Engine Control ECU 04L907309AB Automatic
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Part no. 06E903016S
Audi A4 B8 3.2 FSI Alternator Generator 06E903016S
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Audi A4 B7 Window Antenna Amplifier Module 8E5035225D
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Audi A4 A5 A6 Q5 Q7 Radio Control Head Unit Harman Becker 4F0035061D
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Audi A3 8P PDC Parking Distance Control Sensor Module Unit ECU 8P0919283D
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Audi A4 B9 Rear Hatch Boot Lid Tailgate Opening Control Module Unit 3G0962243D
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Audi TT 8J 2.0 TDI 170HP CBBB Quattro Engine Module Unit ECU 03L906022DH Manual
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Gateway Module Audi A3 8P Volkswagen Golf Mk6 Control Unit ECU 1K0907530AF
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Audi A1 8X Body Control Module Unit ECU 8X0907063K
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Part no. 4L0910655D
Audi Q7 4L Air Module ECU Sensor Control Unit 4L0910655D
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Audi A5 8T PDC Parking Distance Control Module Unit Valeo 8K0919475T
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Audi A4 B8 8K A5 8T 2.7 TDI 190HP CGKA Engine Control ECU 8K1907401K Automatic
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Audi A4 7B 2.0 TFSi D6G519 Engine Starter Motor 06D911023
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Audi Q3 8U 2.0 TDI Fuel Pump Sender Control Relay Module Unit ECU 5Q0906121F
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Audi A4 B9 2.0 TFSI CVKB Petrol Engine Starter Motor 06L911021A
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Audi A7 S7 4G8 A8 D4 4.0 TFSI Starter Motor Denso Petrol Engine 079911024
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Audi A4 B8 A5 8F 2.0 TDI Diesel Engine Alternator Generator 04L903017D
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Audi A4 B8 PDC Assistance Parking Distance Control Module Unit ECU 8K0919475AA
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Audi A5 8T 2.0 TDI CNHA Diesel Engine Motor Starter 04L911021
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Audi A3 8V 2.0 TDI CRLB Diesel Alternator 03F903023D
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Audi A4 B9 8W Q5 FY Audio External Connector AUX USB Port 8W0035708
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Audi A4 B8 Avant 2.0 TDI Quattro Alternator Generator 03L903017
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Audi A3 8P Central Gateway Control Unit Module Relay ECU 1K0907530D
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Part no. 4L0910401T
Audi Q7 4L 3.0 TDI BUG 233HP Engine Contol Unit ECU 4L0910401T Automatic
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Part no. 8P0035186G
Audi A3 8P Multimedia Radio CD Player Head Unit 8P0035186G
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Part no. 04C903023L
Audi A1 8X 1.2 TFSI CBZA Petrol Engine Alternator Generator 04C903023L
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Part no. 8J0959433
Audi TT 8J Body Control Comfort Unit Module BCM Unit 8J0959433
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Part no. 8K0959793M
Audi Q5 8R Front Door Module Control Unit ECU Driver's Side 8K0959793M
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Audi Q7 4L Positive Battery Terminal Cable 4L0971225D
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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 .