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. 8E0971687L
Audi A4 B7 Door Harness Loom Cable Wiring Rear Left Right N/O/S 8E0971687L
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Audi Q2 GA Rear Centre Loudspeaker Subwoofer 81A035382
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Audi Q2 GA Door Module Control Unit Front Passenger Side 5Q0959592K
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Audi A8 4E S8 D3 Comfort Unit Control Module 4E0907289E
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Audi A3 8P Multimedia Concert Radio CD Player Head Unit 8P0035186S
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Audi A3 8P Speaker Tweeter Front Left Right N/O/S Pillar A 8P0035399B
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Audi A3 8P Stereo Radio Audio CD Player Head Unit 8P0035152E
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Audi A4 B8 A5 8T Body Control Comfort Unit Module Unit ECU 8K0907063M
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Audi A3 8P Door Window Lifter Regulator Motor Front Left N/S 8P0959802K
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Audi A4 B7 2.0 TDI Negative Battery Terminal Earth Cable Lead 8E1971235L
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Audi A1 S1 8X Fuse Box Relay Top Upper Cover Cap Flap 6C0937132C
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Audi A5 8T Audio Amplifier Sound Booster Control Unit Module Unit 8T0035223S
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Audi Q7 4L Headlight Level Range Adjustment Module Control Unit 4L0907357
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Audi A3 8P Gateway Module Diagnostic Interface Control Unit ECU 1K0907530G
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Audi A4 B7 2.0 TDI Starter Motor Engine Diesel 03G911023A
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Audi Q7 4L S8 D3 Interface Control Unit Module 4E0035785B
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Audi Q5 8R 2.0 TDI CJCA Diesel Engine Alternator Generator 03G903016G
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Audi A4 B7 Audio Sound System Amplifier Bose 355013 5631B6
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Audi S8 D3 Petrol BSM 5.2 FSI Fuel Pump Control Module 4E0906093B
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Audi A4 B9 2.0 TFSI CVKB Petrol Engine Starter Motor 06L911021
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Audi A5 8T Alternator Generator Rack Mount Bracket 04L903141B
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Audi A6 C6 Battery Positive Plus Pole Terminal Lead Overload 4F0915459
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Audi Q3 8U Amplifier BOSE Premium Audio Sound System Module 8X0035223D
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Audi TT 8N Air Module Control Module Unit ECU 8N0959655B
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Audi A8 4E S8 D3 Comfort Module Electric Steering Column Unit 4E0907279S
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Fuel Pump Control Audi TT FV A3 8V Petrol Engine Unit Module 5Q0906093
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Audi A1 8X 1.4 TFSI CAVG 185HP Petrol Engine ECU Kit Ignition + Key 03C906027CF
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Audi Q7 4L On Board Onboard Supply Module Control Unit ECU 4F0907280B
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Audi A6 C6 2.0 TDI Alternator Generator 180A 14V 03G903016A
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Audi TT 8J 3.2 V6 BUB Ignition Wiring Harness Guide Trim 022971615B
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Audi A8L 4H Front Door Control Module Left N/S Unit ECU 4H0959792G
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Audi A5 8T Onboard Comfort Supply BCM Control Module Unit ECU 8K0907063DD
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Audi A6 C6 6-disc Compact CD Changer 4E0035111A
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Audi A5 8T 2.0 TFSI CNCD Quattro 224HP Engine ECU Kit 8T2907115 Key Ignition
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Parking Brake Control Audi A4 B8 A5 8T Q5 8R Electric Brake Module 8K0907801E
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Audi A4 B8 Radiator Fan Relay Radiator Electrical Module Control Unit 8K0959501E
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Audi Q5 FY Gateway Control Module Unit ECU 8W5907468F
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Audi A3 8P CCM Covenience Control Module Unit Relay Board ECU HELLA 8P0959433F
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Audi A3 S3 8Y Engine Alternator Generator Electric Unit 14V 140A 06K903026C
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VW Volkswagen Audi Glow Plug Relay Unit Bosch 11 Pins 4E0907282A 0281003029
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Audi TT 8J 2.0 TFSI CESA Petrol Engine Starter Motor 02E911023S
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Audi TT 8N Amplifier BOSE Premium Audio Sound System Module 8N8035223A
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Part no. 4M8962239
Audi Q7 4M Rear Boot Lid Tailgate Opening Module Cable Wiring Line 4M8962239
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Audi A3 8P Control Unit Gateway Module ECU 8P0907530C
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Audi Q7 4L Air Module ECU Sensor Control Unit 4L0910655D
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Audi A6 C6 Antenna Amplifier Control Unit Module ECU 4F9035225H
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Audi A4 B7 Front Bumper Wiring Loom Harness Cable 8E0971095R
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Audi A4 B8 Rear Bumper PDC Parking Sensor Wiring Harness Loom 8K0971104C
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Audi A4 B7 2.0 TDI Diesel Engine Control Unit ECU Module Manual 03G906016JD
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Audi Q7 4L A1 8X Negative Battery Cable Lead Monitoring Module 8K0915181D
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Part no. 8W0959655P
Audi A4 B9 Air Module System Control Sensor ECU Unit 8W0959655P
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Part no. 8K0907566H
Audi A5 8T Module Lane Assist Control Unit Rear Right O/S 8K0907566H
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Audi Q3 8U Air Module Crash Impact Sensor Control Unit 8U0959651
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AUDI S8 D3 Access Start Comfort Kessy Control Module 4E0907181A
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Audi Q7 4L Door Control Unit Module ECU Front Right O/S 4L0907290A
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Audi A3 8V Fuse Box Control Module Relay Box 5Q0907361C
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Audi Q2 GA Online Services Control Module ECU Control Unit 5WA035282
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Audi A4 B8 PDC Assistance Parking Distance Control Module Unit ECU 8K0919475J
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Audi A4 B9 A5 F5 2.0 Diesel Starter Motor Engine Valeo 05L911021 0001174006
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Audi S4 B8 Alarm Siren Body Sound Impact Actuator Speaker 4H0907601A
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Part no. 1K0907530D
Audi A3 8P Central Gateway Control Unit Module Relay ECU 1K0907530D
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Part no. 1K0971920
Audi A3 8P Battery Clamp Positive Plus Pole Cable Protection Panel 1K0971920
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Part no. 89500248
Audi A5 8T Headlight Lightning Control Module LCM Unit ECU 89500248
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Part no. 4K0941823J
Audi A6 C8 Fuse Box Power Distribution Module 4K0941823J
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Part no. 5Q0906121G
Audi A3 8V 1.6 TDI Fuel Pump Sender Control Relay Module Unit ECU 5Q0906121G
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Audi A4 A5 A6 Q5 Q7 Radio Control Head Unit Harman Becker 4F0035053B
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Audi A5 S5 F5 Interior Door Panel Courtesy Light LED Wiring Harness 8W0947356E
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Part no. 8K0915181C
Audi A6 C6 Battery Negative Terminal Cable Wiring Wire 8K0915181C
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Part no. 8W0907063DG
Audi A5 F5 45 TFSI DKNA Body Control Module BCM Unit ECU 8W0907063DG
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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. 8P0919475G
Audi S3 8P Control Unit PDC Parking Sensor Module 8P0919475G
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Part no. 8U0035193CX
Audi Q3 8U Head Unit Navigation Multimedia Control Unit 8U0035193CX
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Part no. 06Q911024
Audi A4 B8 B9 A6 C8 Engine Starter Motor Denso 2.0 TFSI Petrol 06Q911024
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Part no. 02A911023
Audi A3 8P Starter Motor Engine Diesel Actuator Unit 02A911023 LRS00791
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Volkswagen Golf MK 7 Audi A3 8V 1.4 Alternator Petrol 04C903023K
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Part no. 4H0907601E
Audi S3 8Y 2.0 TFSI DNFF Petrol Engine Sound Noise Actuator 4H0907601E
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Audi Q7 4M Alternator Mass Cable Wiring Harness Loom 4M0971228CH
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Audi A4 B8 Body Control Comfort Unit Module BCM Unit ECU 8W1907063AC
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Audi A4 B7 Stereo Radio Sound Audio Amplifier Module Harman Becker 8E5035223D
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Part no. 8T0035223M
Audi A5 8T Sound System Audio Amplifier Amp Unit Bang & Olufsen 8T0035223M
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Audi A5 8T 3.0 TDI CCWA Diesel Alternator 059903016J
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Audi A5 F5 Xenon Headlight Resistor Ballast Relay Module Unit 7PP941572AC
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Audi A7 4G8 Tailgate Lift Boot Lid Control Unit Module Trunk 4G8959107N
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Audi A7 4G8 Westfalia Towing Hitch Module Control Unit 506737
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Audi Q3 S Line BCM Body Control Module Unit ECU 8X0907063AF
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Audi A5 8T Body Control Comfort Unit Module BCM Convenience Unit ECU 8K0907064CQ
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Audi Q7 4L Amplifier BOSE Premium Audio Sound System Module 4L0035223J
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Parking Distance Audi A3 8V TT Mk3 Seat Leon MK3 Control Module 5Q0919283F
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Part no. 5Q0915181H
Audi A3 8V Negative Battery Terminal Cable Harness Wiring Loom 5Q0915181H
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Audi Q3 8U Battery Positive Terminal Cable Plus Pole Wiring Harness 5N0971228F
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Starter Motor Audi S8 D3 4E VW Touareg Starter Motor Bosch 1.7KW 07C911023H
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Audi A3 8P Multimedia Stereo Sat Nav CD Player Radio Head Unit 8P0057186SX
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Part no. 80A971104A
Audi Q2 GA Rear Bumper PDC Parking Sensor Wiring Harness Loom Cable 80A971104A
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Part no. 8H0959255A
Audi A4 B7 Cabrio Folding Top Roof ECU Module Control Unit 8H0959255A
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Audi Q7 4L Front Seat Memory Control Module Unit ECU Left Right N/O/S 4F0959760D
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Part no. 8K0906093D
Audi A5 8T 2.0 TFSI CDNC Fuel Pump Control Module Unit ECU 8K0906093D
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Part no. 02M911022F
Audi Q2 GA 35 TFSI DXDB Petrol Starter Motor Manual 02M911022F
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Part no. 8E0880201DH
Audi A5 8T Steering Wheel Air Module Driver's Side 8E0880201DH
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Audi Q5 FY 2.0 TFSI DAXB 252HP Quattro Engine ECU Kit Gateway + Key 06L907425C
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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 .