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 Q5 8R Rear Door Control Module Unit ECU Left Right N/O/S 8K0959795G
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Audi A4 B7 1.9 TDI Engine Control Unit Module ECU 03G906016JA Manual Gearbox
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AUDI A8 4E S8 D3 CD Changer Control Module 6 CD unit 4E0057110C
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Audi Q5 FY Front Windscreen Windshield Lane Assist Camera 80A907217A
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Audi A3 8V Air Module Control Sensor SRS System ECU Unit 5Q0959655BT
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Audi A5 8T Onboard Comfort Supply BCM Control Module Unit ECU 8K0907063DD
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Audi A4 B9 Power Distribution Fuse Box Battery 8W0941823F
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Audi Q5 8R Front Bumper PDC Parking Sensor Wiring Harness Loom 8R0971095D
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Audi RSQ3 F3 2.5 TFSI Quattro 400HP DNWA Engine Unit ECU 07K907309F Automatic
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Audi Q7 4L Front Memory Adjustment Module Control Left Right N/O/S 4L0959760
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Audi RS4 B8 Front Bumper PDC Wiring Park Assist Sensor Harness 8K0971095G
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AUDI A8 S8 D3 Reversing Camera Control Module Rear View Unit ECU 4E0910441
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Audi A4 B7 Air Module Control Unit ECU Impact Sensor 8H0959655G
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Audi A8 4E S8 D3 Adaptive Air Suspension Control Module 4E0910553L
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Audi A4 B8 Door Module Front Drive Side Control Unit ECU 8K0959793E
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Audi A4 B9 Voltage Converter Module Auxiliary Battery Unit 8W0915101A
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Audi A8 4E S8 D3 Head Unit Interface Control Module 4E0910732A
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Audi Q5 8R 2.0 TDI Quattro Alternator Generator 03L903017B
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Audi A6 C6 Front Windscreen Rain Light Solar Sensor Unit 4E0955559C
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Audi A3 8P Body Control Comfort Unit Module BCM Convenience Unit 8P0959433
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Audi A1 8X 1.4 TSI CAXA Alternator 03C903023S
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Audi A4 B8 A5 8T Onboard Comfort Supply Control Module Unit ECU 8K0907063L
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Audi S8 D3 Multimedia Display MMI Mechanism Carbon Fiber Look 4E0919603K
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Audi A3 8V 1.4 TFSI Petrol Starter Motor Engine Actuator Unit 0AM911023N
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Audi A1 8X Mulitmedia MMI Player Audio Stereo Radio Head Unit 8XA035192C
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Audi A1 8X 1.6 TDI CXMA 115HP Engine ECU Kit 04L907309E Ignition + Key Manual
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Audi A8 D4 Dynamic Air Suspension Control Unit Module ECU WABCO 4G0907553G
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Audi A6 C6 Battery Negative Terminal Cable Wiring Wire 8K0915181C
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Audi S3 8P 2.0 TFSI BHZ 265HP Engine Control Module ECU 8P0907115H Manual
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Audi A4 B7 Harman Becker Bluetooth Module Interface Control Unit 8P0862335Q
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Audi A6 C6 Electric Parking Hand Brake Module Control Unit ECU 4F0907801B
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Audi A4 B9 Front Door Control Module Unit Driver's Side 8W0959593E
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Audi A5 8T Parktronic Parking Sensor Module Unit ECU 8K0919475
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Audi Q3 8U PDC Parking Distance Control Sensor Black - Z9Y 1S0919275D
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Audi A8L 4H Front Door Control Module Left N/S Unit ECU 4H0959792G
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Audi A4 B8 Body Control Comfort Unit Module BCM ECU 8K0907063AH
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Audi A1 8X Multimedia MMI Radio SD Player Stereo Sat Nav Head Unit 8X0035182K
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Audi A3 8P Yaw Sensor ESP Rotation Rate Control Unit Module 1K0907655A
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Audi TT Mk3 8S 2.0 TDI CUNA 184HP Engine Control Unit ECU 04L907309A Manual
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Audi A4 B9 2.0 TDI DTNA 163HP Engine Control Unit ECU 05L907309 Automatic
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Audi A3 8P Front Seat Occupation Sensor Left Right N/O/S 8P4963553
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Audi A3 8V Park Parking Assist PDC Distance Control Unit Module 5QA919283E
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Audi A1 8X Body Control Module Unit ECU 8X0907063K
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Audi A8L 4H Head Up Display Hud Project Screen Control Unit Module 4H0919604G
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Audi A5 8T Stereo DAB CD Player Radio Receiver Head Unit 4G0035061N
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Audi Q5 8R Body Control Comfort Unit Module Unit 8K0907063DG
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Audi A5 8T Speaker Amplifier AMP Bang & Olufsen 8T1035223A
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Audi Q3 S Line Multimedia Radio Sat Nav Screen Display Head Unit 8U0857273E
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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 A6 C7 Ignition Smart Key Fob Lock Remote Alarm Button Control 4G0959754K
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Audi S3 8Y 2.0 TFSI Starter Motor Engine Petrol 02E911022H
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Audi A4 S4 B6 A7 4B Crash Impact Sensor 8E0959651
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Audi S6 C6 Steering Wheel Multifunction Wiring Loom 4F0971589A
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Audi A1 8X Fuse Relay Box Electrical Control Unit Module 8X0937124
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Part no. 8T0907468F
Audi A5 8T Gateway Control Module Unit ECU 8T0907468F
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Audi A4 B9 8W TDI Diesel Adblue Dosing Module Control Unit 4M0907355E
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Audi Q7 4L 3.0 TDI BUG 233HP Quattro Engine ECU Kit 4L0910401M Lock + Key
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Audi A3 8P Air Module ECU Sensor Control Unit 8P0959655C
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Audi A5 8T 2.0 TFSI CDNB 180HP Engine ECU Kit 8K2907115Q 2 Keys + Ignition
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Part no. 4F0907289N
Audi A6 C6 Body Control Comfort Unit Module BCM Unit ECU 4F0907289G
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Part no. 4H0919475L
Audi A6 C7 PDC Parking Distance Control Module Unit ECU 4H0919475L
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Part no. 4M0971228CH
Audi Q7 4M Alternator Mass Cable Wiring Harness Loom 4M0971228CH
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Audi Q3 8U Tailgate Lift Boot Lid Control Unit Module Trunk 8U0959107A
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Audi S4 B8 3.0 TFSI CGWC 333HP Quattro Engine Control Module ECU Kit 8K5907551B
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Part no. 8P0035152E
Audi A3 8P Stereo Radio Audio CD Player Head Unit 8P0035152E
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Part no. 4H4907357E
Audi A6 C7 Front Lamp Headlight Control Module Unit ECU Controller 4H4907357E
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Part no. 8H0959655E
Audi A4 S4 B7 Cabrio Air Module Control Unit ECU Impact Sensor 8H0959655E
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Audi A5 F5 Camera Control Module Unit ECU 4M0907428F
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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 A8L 4H Rear View Backup Camera Control Unit Module 4H0907441A
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Audi A3 8P Central Gateway Control Unit Module Relay ECU 1K0907530K
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Audi A6 C6 6-Disc CD Changer Magazine Head Unit MMI 6946989
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Audi TT FV Stereo Radio Sound System Speaker Amp Amplifier 8S0035465B
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Audi TT FV Air Module ECU Control Unit Crash Sensor 5Q0959655P
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Audi A5 8T Door Module Control Unit ECU Front Driver's Side 8T0959793J
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Audi TT 8N 1.8T AUQ 180HP Petrol Engine Control Unit ECU 8N0906018CN Automatic
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Audi RS6 C7 4G Air Suspension Module Regulation Control Unit WABCO 4G0907553F
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Audi A3 8P Control Unit Gateway Module ECU 8P0907530C
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Audi TT 8J Audio Amplifier Radio Sound BOSE Unit 8J0035223D
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Audi A6 C6 3.0 TDI 240HP CDYA Quattro Engine ECU Kit 4F9910402A Ignition + Keys
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Audi A3 8P Body Control Comfort Unit Module BCM Unit ECU 8P0907063N
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Audi S6 C6 Steering Column Wiper Switch Stalk Cruize Control 4F0953549A
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Audi A6 C6 Hifi Audio Sound Speakers Amplifier Control Unit ECU 4F0910223C
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Audi A3 8P Multimedia Interface Unit Module Bracket Mount 8P0035785
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Audi A4 B9 Q5 FY Body Control Comfort Unit Module BCM Unit ECU 8W0907063CH
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Audi A6 C6 Parking Brake Handbrake Module Control Unit 4F0907801A
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Audi A3 8V Cabrio Folding Top Roof ECU Module Control Unit 8V7959255
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Audi A3 8P Volkswagen Touran Mk1 Skoda Yeti Engine Fuse Box 2.0 TDI 1K0937125D
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Audi A7 4G Q7 4L 3.0 TDI Glow Plug Pre Heat 651 Relay Unit 9 Pins 4L0907282A
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Audi A4 B7 Door Wiring Harness Loom Front Cabling 8E1971029AA
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Audi Q3 8U A1 8X SD Card Map Pilot Navigation Europe 2013 8X0919884E
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Audi A3 8V 30 TDI DGTE Diesel Fuel Pump Module Control Unit ECU 3Q0906121B
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Audi A5 8T 2.0 TDI CAHA 170HP Engine Control Module ECU 03L906022RM Manual
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Audi Q7 4L Diagnostic Interface Gateway Control Module Unit ECU 4F0907468N
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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 .