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. 4L0035223D
Audi Q7 4L Quattro Audio Sound BOSE Amplifier Stereo System Module 4L0035223D
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Batery Cover Audi Q7 4L VW Touareg 7P Porsche Cayenn 9PA Top Cap 7L0864643B
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Audi A3 8V Front Impact Sensor Crash Detection Module Unit 5Q0959651B
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Audi Q7 4L Quattro S Line Comfort Module Convinience Control Unit 4L0907289C
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Audi A3 8V Wireless Charger Centre Console Phone Charging Module Unit 81A035502
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Audi A1 8X Body Control Module Unit ECU 8X0907063K
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Audi Q7 4L Boot Trunk Subwoofer Rear Bass Speaker 4L0035382B
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Audi A3 8V Headlight Range Cornering Adjustment Control Module 8V0907357A
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Audi A3 8V A4 B9 Telephone Antenna Amplifier Module Unit Booster 4M0035507
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Audi A5 F5 Xenon Headlight Resistor Ballast Relay Module Unit 7PP941572AC
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Parking Module Audi A4 B8 A5 8T PDC Sensor Control Unit 8K0919475R
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Audi A4 B6 B7 A1 8X 1.9 TDI 2.0 TDI Engine Alternator Generator 06F903023FX
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Audi A4 B8 2.0 TDI Diesel CAGA Engine Control Unit ECU Kit 03L906022MK Key
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Audi A6 C6 Alternator Main Cable Wiring Harness Loom 8K0971228AJ
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Audi A4 B8 A5 8T 2.0 TDI Diesel Engine Starter Motor Assembly Unit 03L911024A
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Audi A4 B8 Loudspeaker Front Door Left Right N/O/S Bang&Olufsen 8T0035415B
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Audi A4 B8 PDC Assistance Parking Distance Control Module Unit ECU 8K0919475AA
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Audi A4 B8 Body Control Comfort Unit Module BCM Unit ECU 8K0907064CC
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Audi A4 B8 Air Module Control Unit ECU Crash Control 8K0959655L
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Part no. 8T0907468AD
Audi A4 B8 Gateway Interface Control Unit Module ECU 8T0907468AD
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Audi A6 C6 Door Window Motor Wiring Cable Loom Front Right O/S 4F0971687A
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Audi A6 C6 Front Passenger Side Door Left N/S Module Unit Control ECU 4F0959792E
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Part no. 4F0915459
Audi A6 C6 Battery Positive Plus Pole Terminal Lead Overload 4F0915459
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Part no. 4F0959651
Audi A6 C6 Front Impact Sensor Safety Crash Detection Module Unit 4F0959651
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Part no. 8K0915181C
Audi A6 C6 Battery Negative Terminal Cable Wiring Wire 8K0915181C
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Part no. 4F1971030BD
Audi A6 C6 Front Right O/S Door Harness Cable Loom 4F1971030BD
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Part no. 4F0910801D
Audi A6 C6 Electric Parking Brake ECU Control Unit Module 4F0910801D
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Part no. 4F0907468M
Audi A6 C6 Diagnostic Interface Gateway Module ECU Control Unit 4F0907468M
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Part no. 4L0919283B
Audi A6 C6 Parking Control Unit ECU Module Sensor PDC 4L0919283B
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Part no. 8K0955559D
Audi A6 C6 Front Windscreen Rain Light Solar Sensor Unit 8K0955559D
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Part no. 4F0907637A
Audi A6 C6 Yaw ESP Rate Sensor Module Unit Control ECU 4F0907637A
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Part no. 4F0919603B
Audi A6 C6 Display Screen Multimedia Navigation Dashboard Unit 4F0919603B
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Audi A6 C6 6-Disc CD Changer Magazine Head Unit MMI 6946989
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Part no. 4F0971845A
Audi A6 C6 Comfort Body Module Fuse Relay Box Control Unit 4F0907289J
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Part no. 4L0959651
Audi A5 Q7 A6 Front Crash Impact Sensor Control Unit 4L0959651
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Part no. 059911024G
Audi A6 C6 ASB 3.0 TDI V6 Starter Motor 059911024G
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Part no. 4E0907476
Audi A6 C6 FL Xenon Headlight Light Ballast Control Unit 4E0907476
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Part no. 8P0953549K
Audi A3 8P Steering Angle Steering Wheel Column Control Module ECU 8P0953549K
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Part no. 4F0907468D
Audi A6 C6 Diagnostic Interface Gateway Control Module Unit ECU 4F0907468D
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Part no. 4F0907289G
Audi A6 C6 Body Control Comfort Unit Module BCM Unit ECU 4F0907289G
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Part no. 4F0910223H
Audi A6 C6 Amplifier Audio Sound Control Unit Module Controller 4F0910223H
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Part no. 4F0907801A
Audi A6 C6 Parking Brake Handbrake Module Control Unit 4F0907801A
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Part no. 1K0915181H
Audi A3 8P Negative Cable Battery Terminal Wiring Loom 1K0915181H
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Part no. 8P0907063G
Audi A3 8P Body Control Module Unit 8P0907063G
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Audi A3 8P Battery Clamp Positive Plus Pole Cable Protection Panel 1K0971920
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Part no. 02M911024G
VW Golf Audi A3 8P 2.0 TDI Diesel Engine Starter Motor 02M911024G
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Audi A4 B7 Audio Sound System Amplifier Bose 355013 5631B6
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Audi A4 B7 Bluetooth Interface Phone Conectivity Control Module 8P0862335H
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Audi A4 B8 2.0 TDI Alternator Mount Tensioner Pulley Bracket Support 03L903143K
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Part no. 03G903016A
Audi A6 C6 2.0 TDI Alternator Generator 180A 14V 03G903016A
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Audi A4 B7 2.0 TDI Negative Battery Terminal Earth Cable Lead 8E1971235L
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Audi A3 8L TT 8N Battery Cable Positive Wire Lead Terminal 1J0971228AE
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Audi A3 8P Starter Motor Engine Diesel Actuator Unit 02A911023 LRS00791
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Audi A4 B7 1.9 TDI Engine Control Unit Module ECU 03G906016JA Manual Gearbox
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Audi A4 B8 Body Control Module BCM Comfort Control Unit 8K0907064DP
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Audi A4 B8 2.0 TDI 143HP CAGA Diesel Engine Control Unit ECU Module 03L906022NN
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Audi A4 B8 A5 8T Stereo Radio Sound System Speaker Amp Amplifier 8R0035223F
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Audi A4 B8 A5 8T Parking Module Electric Brake Control Unit 8K0907801H
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Audi A6 C5 Yaw Sensor ESP Rotation Rate Control Unit Module 8E0907637A
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Audi A4 B7 2.0 TDI Battery Cable Wiring Harness 8EO971824E
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Audi A4 B7 2.0 TDI Starter Motor Engine Diesel 03G911023A
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Part no. 8K0971029M
Audi A4 B8 Door Wiring Harness Loom Front Cabling 8K0971029M
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Part no. 8E1971029AA
Audi A4 B7 Door Wiring Harness Loom Front Cabling 8E1971029AA
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Part no. 8E1971687L
Audi A4 B7 Door Harness Loom Cable Wiring Rear 8E1971687L
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Part no. 8E0971687L
Audi A4 B7 Door Harness Loom Cable Wiring Rear Left Right N/O/S 8E0971687L
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Part no. 8K0971030M
Audi A4 B8 Door Wiring Harness Loom Front Left N/S Cabling 8K0971030M
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Audi A3 8P Yaw Sensor ESP Rotation Rate Control Unit Module 1K0907655A
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Audi A4 B7 Bluetooth Module Interface Control Unit Hands Free 8P0862335D
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Audi A3 8P Crash Impact Airbag Sensor Unit Module Air Bag 8E0959651B
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Audi A3 8P Central Gateway Control Unit Module Relay ECU 1K0907530D
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Audi A3 8P Steering Wheel Position Angle Sensor Control Unit Module 8P0953549B
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Audi A3 8P 2.0 TDI 140HP Diesel Engine Control Unit ECU Module DSG 03G906016DT
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Audi A3 8P Body Control Comfort Unit Module BCM Unit 8P0907279C
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Audi A3 8P Battery Box Tray Housing Holder Bracket Cover 1K0915333B
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Part no. 8E0959651A
Audi A4 B7 Front Crash Impact Air Module Sensor Unit Module 8E0959651A
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Part no. 8E1971035DF
Audi A4 Door Harness Loom Cable Wiring Front Left Right N/O/S 8E1971035DF
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Part no. 8E0919283D
Audi A4 B7 PDC Parking Distance Sensor Control Unit Module Rear 8E0919283D
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Audi A4 B7 2.0 TDI Diesel Engine Control Unit ECU Module Manual 03G906016JD
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Audi A4 B7 Body Control Module BCM Comfort Control Unit Power Supply 8E0907279N
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Audi A4 B7 Audio Radio Aerial Amplifier Control Unit Harman Becker 8E9035223D
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Audi A4 B7 Door Card Speaker Harness Loom Cable Wiring Rear 8E0971693P
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Audi A4 B7 Front Door Wiring Harness Loom Cable Left N/S 8E1971035DJ
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Part no. 02E911023H
Audi A3 Starter Motor Engine Diesel 02E911023H
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Audi A4 B7 Starter Motor Engine Diesel Bosch 0001125053
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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 .