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. 8P0959433J
Audi A3 8P Body Control Comfort Unit Module BCM Convenience Unit ECU 8P0959433J
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Audi A3 8P Side Air Module Control Unit ECU 8P0959655N
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VW Volkswagen Audi Glow Plug Relay Unit Bosch 11 Pins 4E0907282A 0281003029
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Audi A5 8T Head Unit Radio Player Navigation Control Module 4G0035061H
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Audi A4 B8 2.0 TDI CAGA Diesel Engine Starter Motor Bosch Unit 03L911021C
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Audi A5 8T Seat Module Control Unit ECU Front Left Right N/O/S 8T0959760
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Audi Q3 8U 2.0 TDI CFGC Fuel Sender Pump Control Module Unit ECU 5Q0906121D
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Audi A3 8V A4 A5 B8 Alternator Generator Electrical Unit Diesel 03L903023K
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Audi A5 Q7 A6 Front Crash Impact Sensor Control Unit 4L0959651
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Audi A3 8V Air Module Control Unit SRS System ECU 5Q0959655A
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Audi Q5 FY Gateway Control Module Unit ECU 8W5907468F
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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 A5 8T Sound System Audio Amplifier Amp Unit Bang & Olufsen 8T0035223M
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Audi A6 C7 Gateway Convenience Module Unit Body Control ECU 4H0907064FN
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Part no. 06D903016AB
Audi A4 B7 1.8 T BFB Petrol Engine Alternator Generator 06D903016AB
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Part no. 4E0941817
Audi A6 A8 Q7 CAN Bus Jumper Contact Bridge Connector 4E0941817
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Part no. 4G0035061S
Audi A5 8T MMI Multimedia Navigation Radio Control Head Unit 4G0035061S
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Part no. 4H0907441A
Audi A8L 4H Rear View Backup Camera Control Unit Module 4H0907441A
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Audi A4 B7 Aerial Antenna Amplifier Module Left N/S 8H0035225S
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Part no. 8P0035192SX
Audi A3 S3 8P Radio Media GPS Sat Audi Navigation Plus Unit 8P0035192QX
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Audi A3 8Y Rear Door Control Module Unit ECU Driver's Side Right O/S 5Q0959595L
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Part no. 8K0907357A
Audi A5 8T Headlight Range Headlamp Control Unit Module ECU 8K0907357A
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Audi S5 8T Amplifier Speaker Bang & Olufsen Control Module Unit 8T0035223AN
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Audi A3 8V Body Control Comfort Unit Module BCM Unit ECU 5Q0937084AJ
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Part no. 03L911021G
Audi A4 B8 A5 8T A6 C7 Starter Motor Actuator Bosch Diesel Engine 03L911021G
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Part no. 03G903016F
Audi A4 B8 2.0 TDI Alternator Generator 150A Diesel Engine Unit 03G903016F
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Audi A6 C7 Board Supply Comfort BCM Body Control Module Unit ECU 4H0907063CF
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Audi Q5 FY Rear Boot Trunk Lid Tailgate Control Unit Module ECU 8W8959107B
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Part no. 8E0959651
Audi A4 S4 B6 A7 4B Crash Impact Sensor 8E0959651
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Part no. 8P0959433C
Audi S3 8P Body Control Comfort Unit Module BCM Convenience Unit 8P0959433C
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Part no. 06A905409P
Audi A3 8P 1.6 MPI Ignition Wiring Loom Harness Set 06A905409P
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Part no. 04L911024A
Audi A4 B9 2.0 TDI DETA Engine Starter Motor Actuator Starter 04L911024A
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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. 03L903017B
Audi Q5 8R 2.0 TDI Quattro Alternator Generator 03L903017B
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Part no. 4F0915459
Audi A6 C6 Battery Positive Plus Pole Terminal Lead Overload 4F0915459
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Audi TT 8J 2.0 TFSI Petrol Fuel Injectors Wiring Harness 06F971082F
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Part no. 5Q0959592K
Audi Q2 GA Door Module Control Unit Front Passenger Side 5Q0959592K
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Part no. 04E903023K
Audi Seat Skoda Volkswagen 1.4 TSI Petrol Alternator Generator Valeo 04E903023K
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Audi Q7 4L CD Player Changer Multimedia Module Control Unit 4L0910110B
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Audi Q2 GA Online Services Control Module ECU Control Unit 5WA035282
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Part no. 8K0907289C
Audi A5 8T BCM Body Comfort Convenience Module Unit ECU 8K0907289C
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Audi Q3 8U PDC Parking Distance Control Sensor Black - Z9Y 1S0919275D
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Audi A6 C6 Front Windscreen Rain Light Solar Sensor Unit 4E0955559C
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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. 4L0907289C
Audi Q7 4L Quattro S Line Comfort Module Convinience Control Unit 4L0907289C
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Audi Q3 8U Headlight Module Ballast Relay Control Unit LCM 4G0907397Q
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Audi A6 C6 CD Player Changer Multimedia Module Control Unit 4F0035110A
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Audi A8 D3 Amplifier BOSE Audio Sound System Module 4E0035223N
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Audi A7 4G8 ESP Yaw Rate Module Control Unit Sensor ECU 4G0907637H
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Audi A1 8X Negative Battery Terminal Earth Cable Lead 6C0915181B
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Audi Q3 8U Headlight Module LED Headlamp Control Unit 8U0998572A
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Part no. 8V7959255
Audi A3 8V Cabrio Folding Top Roof ECU Module Control Unit 8V7959255
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Part no. 4G0919129C
Audi A8L 4H TV Tuner Digital Video Control Module 4G0919129C
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Audi Q7 4L Quattro S Line Keyless Entry Antenna Control Module 4L0907335
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Part no. 4E0035652A
Audi A6 C6 MMI Multimedia Sat Nav Navigation Control Head Unit 4E0035652A
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Part no. 4G0907410
Audi A6 C7 4G A5 8T Garage Door Opening Module Controller Unit 4G0907410
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Audi Q7 4L 3.0 TDI Quattro Engine Starter Motor Actuator Starter 059911024H
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Antenna Control Module Audi Q3 RSQ3 F3 Line Keyless Entry 5Q0962131
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Part no. 04L907309R-2
Audi A3 8V 1.6 TDI 110HP DBKA Engine ECU 04L907309R Manual
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Part no. 4G0907468AC
Audi A6 C7 Central Gateway Control Unit Module Relay ECU 4G0907468AC
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Part no. 8K0919475B
Audi A5 8T Park Parking Assist PDC Distance Control Unit Module 8K0919475B
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Part no. 06M911021A
Audi SQ5 FY Starter Motor Engine Diesel Bosch 06M911021A
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Part no. 8S0907159
Audi TT FV Impact Body Sound Accoustic Control Module ECU 8S0907159
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Part no. 03G903016G
Audi Q5 8R 2.0 TDI CJCA Diesel Engine Alternator Generator 03G903016G
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Part no. 1K0907530Q
Gateway Module Audi A3 8P Volkswagen Golf Mk5 Control Unit 1K0907530Q
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Part no. 8E0959433CR
Audi A4 B7 Body Comfort Control BCM Supply Module Unit ECU 8E0959433CQ
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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. 06J903023B
Audi Q3 8U Petrol Alternator Generator 14V 140A 06J903023B
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Part no. 4F0919129C
Audi A8 D4 A6 C6 TV Tuner Digital Video Control Module 4F0919129C
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Part no. 8XA959655A
Audi A1 8X Air Module Control Sensor SRS System ECU Unit 8XA959655A
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Part no. 8K0971104C
Audi A4 B8 Rear Bumper PDC Parking Sensor Wiring Harness Loom 8K0971104C
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Part no. 4M0907355B
Audi A4 B9 TDI Diesel Adblue Dosing Module Control Unit 4M0907355B
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Part no. 4M0907355E
Audi A4 B9 8W TDI Diesel Adblue Dosing Module Control Unit 4M0907355E
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Part no. 4F0919603
Audi A6 C6 Display Screen Multimedia Navigation Dashboard Unit 4F0919603
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Part no. 4F0919603B-1
Audi A6 C6 Display Screen Multimedia Navigation Dashboard Unit 4F0919603B
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Part no. 06M907309D
Audi A4 S4 B9 3.0 TFSI 355HP CWGD Quattro Engine Control Unit ECU 06M907309D
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Audi A3 8P Starter Motor Engine Diesel Actuator Unit 02A911023 LRS00791
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Audi Q7 4L Engine Starter Motor Actuator Starter 079911021D
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Part no. 4F0907468N
Audi Q7 4L Diagnostic Interface Gateway Control Module Unit ECU 4F0907468N
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Part no. 4H0035670T
Audi A8 D4 Reader Radio CD System Audio MMI Multimedia Head Unit 4H0035670T
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Audi Q7 4L Amplifier BOSE Premium Audio Sound System Module 4L0035223J
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Audi A4 B7 Audio Sound System Amplifier Bose 355013 5631B6
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Audi Q7 4L Quattro Audio Sound BOSE Amplifier Stereo System Module 4L0035223D
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Audi Q7 4L Front Seat Memory Control Module Unit ECU Left Right N/O/S 4F0959760D
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Volkswagen Seat Skoda Audi 2.0 TDI Diesel Engine Starter Motor Valeo 02E911024H
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Part no. 8K0907063DD
Audi A5 8T Onboard Comfort Supply BCM Control Module Unit ECU 8K0907063DD
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Part no. 5Q0959655N
Audi A3 8V Air Module Control Sensor SRS System ECU Unit 5Q0959655N
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Part no. 4L0919283E
Audi Q7 4L PDC Parking Distance Sensor Control Module Unit ECU 4L0919283E
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Audi A3 8Y A4 B9 A6 C8 Alternator Bracket Mount Holder 2.0 TDI 05L903143
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Part no. 3WA959354
Audi Q2 GA Impact Crash Control Sensor Module ECU 3WA959354
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Part no. 05E903026K
Volkswagen Golf Mk8 Audi Q2 GA A3 8V 8Y 1.5 TSI Alternator 14V 140A 05E903026K
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Part no. 059911021G
Motor Starter Audi A7 4G Q5 8R 3.0TDI Diesel Engine Starter Unit 059911021G
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Part no. 8K2907115P-1
Audi A5 8T A4 B8 8K 2.0 TFSI CDNC 211HP Engine ECU Kit 8K2907115P Key + Ignition
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Part no. 02T911023M
Audi A3 8P 1.6 MPI Petrol Starter Motor Engine 02T911023M
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Part no. 8R0907468F
Audi A5 8T Diagnostic Interface Gateway Control Module Unit ECU 8R0907468F
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Part no. 8V0907357A
Audi A3 8V Headlight Range Cornering Adjustment Control Module 8V0907357A
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Part no. 4L0915181
Audi Q7 4L Power Supply Battery Control Module Unit 4L0915181
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Part no. 8Y0035282B
Audi A3 S3 RS3 8Y Online Service Control Module Unit 8Y0035282B
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Part no. 07C911023H
Starter Motor Audi S8 D3 4E VW Touareg Starter Motor Bosch 1.7KW 07C911023H
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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 .