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 Q7 4L CD Player Changer Multimedia Module Control Unit 4L0910110B
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Audi A6 C6 Comfort Body Module Fuse Relay Box Control Unit 4F0907289J
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Audi A3 8V Body Control Comfort Unit Module BCM Unit ECU 5Q0937084AJ
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Audi Q3 8U PDC Assistance Parking Distance Control Module Unit ECU 8X0919475N
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Audi A8L 4H TV Tuner Digital Video Control Module 4G0919129C
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Audi Q7 4L 3.0 TDI Quattro Engine Starter Motor Actuator Starter 059911024H
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Audi SQ5 FY Starter Motor Engine Diesel Bosch 06M911021A
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Audi A3 S3 8L Headlight Module Ballast Relay Control Unit HELLA 4B0919471
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Audi Q2 GA Door Module Control Unit Front Passenger Side 5Q0959592K
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Audi Q7 4L Quattro S Line Comfort Module Convinience Control Unit 4L0907289C
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Audi A5 8T Seat Module Control Unit ECU Front Left Right N/O/S 8T0959760
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Audi A7 4G8 ESP Yaw Rate Module Control Unit Sensor ECU 4G0907637H
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Audi A5 8T Park Parking Assist PDC Distance Control Unit Module 8K0919475B
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Audi Q2 GA Online Services Control Module ECU Control Unit 5WA035282
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Audi A4 S4 B6 A7 4B Crash Impact Sensor 8E0959651
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Audi A4 B7 Bluetooth Module Interface Control Unit Hands Free 8P0862335D
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Audi Q7 4L Quattro S Line Keyless Entry Antenna Control Module 4L0907335
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Audi A6 C6 CD Player Changer Multimedia Module Control Unit 4F0035110A
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Audi A6 C7 4G A5 8T Garage Door Opening Module Controller Unit 4G0907410
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Antenna Control Module Audi Q3 RSQ3 F3 Line Keyless Entry 5Q0962131
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Audi Q5 8R 2.0 TDI CJCA Diesel Engine Alternator Generator 03G903016G
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Audi Q3 8U Petrol Alternator Generator 14V 140A 06J903023B
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Audi A4 B9 A5 F5 Q7 4M Q5 FY VW Volkswagen Touareg Mk3 Starter Motor 057911024
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Audi A6 C6 MMI Multimedia Sat Nav Navigation Control Head Unit 4E0035652A
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Audi A4 B7 Body Comfort Control BCM Supply Module Unit ECU 8E0959433CQ
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Audi TT FV Impact Body Sound Accoustic Control Module ECU 8S0907159
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Audi A1 8X A3 8P Q3 Mk1 Diesel Engine Starter Motor 02M911024P
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Audi A3 8V Front Impact Sensor Crash Detection Module Unit 5Q0959651B
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Audi A6 C7 Board Supply Comfort BCM Body Control Module Unit ECU 4H0907063CF
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Gateway Module Audi A3 8P Volkswagen Golf Mk5 Control Unit 1K0907530Q
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Audi A4 S4 B9 3.0 TFSI 355HP CWGD Quattro Engine Control Unit ECU 06M907309D
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Audi A3 8V 1.6 TDI 110HP DBKA Engine ECU 04L907309R Manual
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Audi A3 8V Cabrio Folding Top Roof ECU Module Control Unit 8V7959255
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Audi A6 C6 Display Screen Multimedia Navigation Dashboard Unit 4F0919603B
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Audi A6 C6 Display Screen Multimedia Navigation Dashboard Unit 4F0919603
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Audi A3 8P Convertible Folding Roof Module Control Unit ECU 8P7959255B
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Audi A6 C6 FL CAGB Diesel Engine Alternator Generator Bosch 14V 180A 03G903016L
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Audi A3 8P 2.0 TDI 170HP BMN Engine Control Unit ECU 03G906018DN Automatic
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Audi Q3 8U Headlight Module Ballast Relay Control Unit LCM 4G0907397Q
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Audi A4 B9 A5 F5 Alternator Generator Valeo 2.0 TFSI DDWA 06L903018H
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Audi Q7 4L PDC Parking Distance Sensor Control Module Unit ECU 4L0919283E
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Audi A3 8V VW Golf Mk7 Alternator Generator 14V 140A 2.0 TFSI 06J903023A
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Audi A4 B9 TDI Diesel Adblue Dosing Module Control Unit 4M0907355B
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Part no. 4L0035223J
Audi Q7 4L Amplifier BOSE Premium Audio Sound System Module 4L0035223J
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Audi A4 B9 8W TDI Diesel Adblue Dosing Module Control Unit 4M0907355E
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Audi A4 B7 Starter Motor Engine Diesel Bosch 0001125053
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Audi A5 8T A4 B8 8K 2.0 TFSI CDNC 211HP Engine ECU Kit 8K2907115P Key + Ignition
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Audi A8 D4 Reader Radio CD System Audio MMI Multimedia Head Unit 4H0035670T
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Audi A3 8P Yaw Sensor ESP Rotation Rate Control Unit Module 1K0907655A
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Audi Q7 4L Quattro Audio Sound BOSE Amplifier Stereo System Module 4L0035223D
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Volkswagen Seat Skoda Audi 2.0 TDI Diesel Engine Starter Motor Valeo 02E911024H
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Audi A8L 4H Tailgate Lift Boot Lid Control Unit Module Trunk 4H0959107AB
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Audi A3 8P 1.6 MPI Petrol Starter Motor Engine 02T911023M
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Part no. 4F0907289N
Audi A6 C6 Body Control Comfort Unit Module BCM Unit ECU 4F0907289G
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Audi A7 4G Seat Cable Front Left Right N/O/S Wiring Loom Harness 4G8971365
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Audi A5 8T CD Player Radio Multimedia MMI Head Unit ECU 8T2035666D
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Audi A3 8P 1.6 TDI 105HP CAYC Diesel Engine ECU Kit 03L906023M 2 Keys Manual
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Audi A6 C7 Central Gateway Control Unit Module Relay ECU 4G0907468AC
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Part no. 5Q0959655N
Audi A3 8V Air Module Control Sensor SRS System ECU Unit 5Q0959655N
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Motor Starter Audi A7 4G Q5 8R 3.0TDI Diesel Engine Starter Unit 059911021G
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Part no. 4L0915181
Audi Q7 4L Power Supply Battery Control Module Unit 4L0915181
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Part no. 4G8971095C
Audi A7 4G PDC Sensor Wiring Loom Harness Cable Front Bumper 4G8971095C
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Part no. 8J0951177
Audi TT 8J Interior Roof Alarm Motion Ultrasonic Sensor 8J0951177
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Part no. 4E0035541S
Audi Q7 4L Radio Multimedia Receiver Control Module Unit 4E0035541S
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Part no. 4F0910289N-1
Audi A6 S6 RS6 C6 4F Convienience Comfort Module Unit ECU 4F0910289N
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Audi Q7 4L Air Suspension Adjustment Module Control Unit 4L0907553E
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Audi A4 B9 Tow Bar Trailer Towing Control Module Unit 4E0907383J
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Audi Q7 4L Blind Spot Monitoring Radar Unit 4L0907568A
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Part no. 8W0907064EB
Audi A4 B9 2.0 TFSI DEMA BCM Body Control Module Unit ECU 8W0907064EB
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Body Control Module Audi A4 B8 A5 8T BCM Comfort Control Unit 8K0907064CP
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Audi A5 F5 Rear Bumper PDC Parking Sensor Wiring Harness Loom Cable 8W6971104A
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Audi A3 8L TT 8N Battery Cable Positive Wire Lead Terminal 1J0971228AE
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Audi S3 8Y 2.0 TFSI Starter Motor Engine Petrol 02E911022H
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Audi A6 C6 4F Control Unit Air Module ECU Bosch 4F0959655G
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Audi A5 8T Remote Button Smart Key Fob Unit 8K0959754H
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Audi A4 B8 Body Control Module BCM Comfort Control Unit 8K0907064DP
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Audi Q2 GA Impact Crash Control Sensor Module ECU 3WA959354
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Audi Q5 8R Multimedia Radio Control Module Head Unit 4G0035061Q
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Starter Motor Audi S8 D3 4E VW Touareg Starter Motor Bosch 1.7KW 07C911023H
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Audi A5 S5 8T Door Module Control Unit Front Passenger Side 8T0959792J
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Audi A4 B9 Front Centre Dashboard Tweeter Speaker 8W0035454A
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AUDI Q7 4L Lane Assist Module Blind Spot 4L0907566A
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Part no. 02M911023P
Audi Volkswagen Seat Skoda 2.0 TDI Diesel Starter Motor Engine Bosch 02M911023P
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Part no. 03L903016A
Audi Q5 8R 2.0 TDI Alternator Generator 14V 180A Valeo 03L903016A
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Part no. 06B903016AB
Audi A4 B7 Petrol Engine Alternator Generator Electric Unit 14V 140A 06B903016AB
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Part no. 8X0035223D
Audi Q3 8U Amplifier BOSE Premium Audio Sound System Module 8X0035223D
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Part no. 8R0907468F
Audi A5 8T Diagnostic Interface Gateway Control Module Unit ECU 8R0907468F
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Part no. 80A962243
Audi Q7 4M Rear Hatch Boot Lid Tailgate Opening Control Module Unit 80A962243
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Part no. 06K903023G
Audi TT FV Engine Alternator Generator Electric 14V 150A 2.0 TFSI 06K903023G
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Part no. 8Y4971104AL
Audi S3 8Y Electric Rear Bumper Wiring Harness PDC Loom Cable 8Y4971104AL
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Stereo DAB Radio Audi A4 B8 Q5 8R CD Player Radio Receiver Head Unit 4G0035083
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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 .