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. 8K0971228B
Audi A5 8T Battery Starter Alternator Harness Wiring Cable 8K0971228B
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Audi A3 8P Starter Motor Engine Diesel Actuator Unit 02A911023 LRS00791
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Audi A4 B9 Rear Hatch Boot Lid Tailgate Opening Control Module Unit 3G0962243D
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Audi Q2 GA Air Module Control Unit 5QF959655BQ
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Audi A4 B9 8W Q5 FY Audio External Connector AUX USB Port 8W0035708
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Audi A4 B7 2.7 TDI BPP Diesel Engine Alternator Generator 059903023BX
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Audi A3 RS3 8V AMR Module Rear Suspension Damper Control Unit 8V0907376E
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Audi A3 8P Engine Starter Motor Actuator 2.0 TDI Diesel 02E911023Q
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Audi Q5 8R Rear Bumper PDC Parking Sensor Wiring Harness Loom 8R0971104CC
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Audi Q5 8R Negative Battery Terminal Cable Wiring Battery 8R0915181C
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Audi A3 8V Gateway Control Module Unit ECU 5Q0907530S
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Part no. 8K0915181L
Audi A1 8X Negative Battery Terminal 8K0915181L
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Audi A3 8P 1.6 MPI Ignition Wiring Loom Harness Set 06A905409P
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Audi A6 C7 3.0 TDI CLAA Alternator Generator Engine Unit Hitachi 059903018R
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Audi A3 8P Multimedia Stereo Sat Nav CD Player Radio Head Unit 8P0057186SX
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Audi Q5 8R Negative Battery Terminal Cable Wiring Battery 8R0915181
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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 C7 Multimedia Radio CD Player Head Unit 4G0035192H
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Audi A3 8P 1.6 TDI 5 Speed Manual Diesel Engine Starter Motor 02Z911024A
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Audi Q7 4L Positive Battery Terminal Cable 4L0971225D
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Part no. 8J0057186JX
Audi TT 8J Radio Head Unit CD Audio Player Control Unit 8J0035186J
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Audi A4 A5 A6 Q5 Q7 Radio Control Head Unit Harman Becker 4F0035053B
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Audi A4 B7 Petrol Engine Alternator Generator Electric Unit 14V 140A 06B903016AB
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Audi A3 S3 8P Radio Media GPS Sat Audi Navigation Plus Unit 8P0035192H
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Audi TT 8J Volkswagen Golf Mk5 Gateway Control Unit Module ECU 1K0907530L
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Audi A3 8P Side Air Module Control Unit ECU 8P0959655N
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Part no. 06L903018H
Audi A4 B9 A5 F5 Alternator Generator Valeo 2.0 TFSI DDWA 06L903018H
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Part no. 5Q0907361C
Audi A3 8V Fuse Box Control Module Relay Box 5Q0907361C
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Audi A7 4G Rear Door Control Module Unit ECU Left Right N/O/S 4G8959795H
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Part no. 06H911024C
Audi A5 F5 45 TFSI QUATTRO Starter Motor Engine Denso 06H911024C
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Part no. 03G903016N
Audi A6 C6 2.0 TDI Alternator Generator 180A 14V Diesel Engine Unit 03G903016N
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Part no. 5Q0971228AC
Audi Q2 GA Volkswagen T Roc Battery Terminal Positive Cable 5Q0971228AC
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Part no. 06F903023H
Audi A4 B7 A6 C6 Alternator Generator 1.9 TDI Diesel 06F903023HX
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Part no. 057911023E
Audi Q7 4L 4.2 TDI Quattro Engine Starter Motor Actuator 057911023E
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Audi A4 B8 A5 8F 2.0 TDI Diesel Engine Alternator Generator 04L903017D
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AUDI S8 D3 Access Start Comfort Kessy Control Module 4E0907181A
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Audi Q2 GA Head Unit Navigation Multimedia Control Unit MMI 81A035043
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Audi Seat Skoda Volkswagen 1.2 TSI Petrol Starter Motor 0AH911023G
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Audi A4 B8 3.2 FSI Alternator Generator 06E903016N
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Audi A4 B9 Boot Tailgate Control Module Unit 4M0959107B
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Part no. 4H0907064BN
Audi A6 C7 Saloon CCM Comfort Control Module Onboard Unit ECU 4H0907064BN
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Part no. 8R0971228BG
Audi SQ5 8R Starter Alternator Engine Wiring Loom Cable 3.0 TDI 8R0971228BG
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Audi A7 4G PDC Sensor Wiring Loom Harness Cable Front Bumper 4G8971095C
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Audi A3 8P Battery Box Tray Housing Holder Bracket Cover 1K0915333B
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Audi A8 4E S8 D3 Comfort Module Electric Steering Column Unit 4E0907279S
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Audi A4 B7 Cabrio Folding Top Roof ECU Module Control Unit 8H0959255A
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Body Control Module Audi A4 B8 A5 8T BCM Comfort Control Unit 8K0907064CP
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Audi S7 4G8 Front Lamp Headlight Level Sensor 3C0907503
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Part no. 8P0035186AB
Audi A3 8P Multimedia Radio CD Player Head Unit 8P0035186AB
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Audi A4 B7 2.0 TFSI Starter Motor Engine Motor Actuator Petrol 03L911021E
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Audi A6 C7 Fuel Pump Control Unit Module 4G0906093F
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Audi A7 4G8 Westfalia Towing Hitch Module Control Unit 506737
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Part no. 06B903016AB
Audi A4 B7 Petrol Engine Alternator Generator Electric Unit 14V 140A 06B903016AB
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Audi S3 8P Audio Sound BOSE Amplifier Stereo System Module 8P4035223D
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Audi A5 8T 2.0 TDI CNHA Diesel Engine Motor Starter 04L911021
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Audi TT FV Engine Alternator Generator Electric 14V 150A 2.0 TFSI 06K903023G
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VW Golf Audi A3 8P 2.0 TDI Diesel Engine Starter Motor 02M911024G
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Audi A3 8P Body Control Comfort Unit Module BCM Unit 8P0907279C
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Audi A3 8L TT 8N Battery Cable Positive Wire Lead Terminal 1J0971228AE
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Part no. 8W0907064CB
Audi A4 B9 BCM Body Control Module Unit ECU 8W0907064CB
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Part no. 8T0959754
Audi A5 8T Remote Radio Alarm Key Button Control Unit Module 868 MHZ 8T0959754
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Part no. 8E0971095R
Audi A4 B7 Front Bumper Wiring Loom Harness Cable 8E0971095R
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Part no. 3AA962243
Audi A8L 4H Tailgate Lift Boot Lid Control Unit Module Trunk 3AA962243
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Part no. 04C903023K
Volkswagen Golf MK 7 Audi A3 8V 1.4 Alternator Petrol 04C903023K
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Part no. 06H903017T-1
Audi A5 8T A4 B8 2.0 TFSI Engine Alternator Generator 06H903017T
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Part no. 8K0959792N
Audi Q5 8R Door Lock Control Module Unit ECU Front Left N/S 8K0959792N
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Part no. 03G906016DT
Audi A3 8P 2.0 TDI 140HP Diesel Engine Control Unit ECU Module DSG 03G906016DT
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Part no. 89500248
Audi A5 8T Headlight Lightning Control Module LCM Unit ECU 89500248
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Part no. 8E0035192T
Audi A4 B7 Sat Navi Stereo Radio Audio Head Unit CD Player 8E0035192T
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Part no. 06F903023FX
Audi A4 B6 B7 A1 8X 1.9 TDI 2.0 TDI Engine Alternator Generator 06F903023FX
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Part no. 8K0907357
Audi A5 8T Headlight Headlamp Module Control Unit 8K0907357
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Part no. 4E0907801B
Audi A8 S8 D3 Electric Parking Brake Module Handbrake Control Unit 4E0907801B
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Part no. 8Y0959760
Audi S3 8Y Front Seat Control Module Unit Left N/S 8Y0959760
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Part no. 8S0915459A
Audi TT FV 2.0 TFSI CHHC HV Battery Power Central Distribution Point 8S0915459A
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Part no. 079911023D
Audi A5 8T 2.0 TFSI Starter Motor Engine 079911023D
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Part no. 8J0971349CF
Audi TT 8N Alternator Main Cable Wiring Harness Loom 8J0971349CF
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Audi A4 B8 2.0 TDI 143HP CAGA Diesel Engine Control Unit ECU 03L906022JM
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Part no. 1K0971920
Audi A3 8P Battery Clamp Positive Plus Pole Cable Protection Panel 1K0971920
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Audi Q5 8R 2.0 TDI Alternator Generator 14V 180A Valeo 03L903016A
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Part no. 4L0959651
Audi A5 Q7 A6 Front Crash Impact Sensor Control Unit 4L0959651
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Audi S8 D3 Valve Block Air Suspension Control Unit Module 4F0616013
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Audi A6 C7 PDC Parking Distance Sensor Module Control Unit ECU 4H0919475Q
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Audi A4 B7 Bluetooth Module Interface Control Unit Hands Free 8P0862335D
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Audi Q2 GA Door Module Control Unit Front Passenger Side 5Q0959592K
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Audi Q2 GA Online Services Control Module ECU Control Unit 5WA035282
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Audi A6 C6 Display Screen Multimedia Navigation Dashboard Unit 4F0919603
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Part no. 06E911021D
Audi S5 8T A6 C7 Engine Starter Motor 3.0 TFSI Petrol CGWC 06E911021D
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Audi A3 8P Steering Wheel Position Angle Sensor Control Unit Module 8P0953549B
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Part no. 4F0915459
Audi A6 C6 Battery Positive Plus Pole Terminal Lead Overload 4F0915459
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Part no. 4H0907064GB
Audi A7 4G8 Body Comfort Control Module Unit BCM V2 4H0907064GB
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Part no. 4B0955531A
Audi VW Volkswagen Seat Relay Unit Module 9 Pins 12V UH2 4B0955531A
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Part no. 4L0035382B
Audi Q7 4L Boot Trunk Subwoofer Rear Bass Speaker 4L0035382B
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Part no. 8K0953568B
Audi A5 8T Wiper Switch Stalk Steering Column Wheel 8K0953502C
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Part no. 059911024P
Audi A6 C7 A7 4G 2.0 TDI Starter Motor Diesel Engine Denso 059911024P
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Part no. 07K903023J
Audi RS3 8V 2.5 TFSI Alternator 14V 180A 07K903023J
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Part no. 4L0907290A
Audi Q7 4L Door Control Unit Module ECU Front Right O/S 4L0907290A
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Part no. 81A955559A
Volkswagen Audi Skoda Windscreen Rain Sensor Control Unit 81A955559A
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Part no. 04L911021B
Audi A4 B9 Engine Starter Motor Actuator Starter 04L911021B
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Part no. 8R0959655E
Audi Q5 8R Air Module SRS System Control Sensor ECU Unit 8R0959655E
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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 .