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 A6 C6 Diagnostic Interface Gateway Control Module Unit ECU 4F0907468D
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Audi A4 B8 A5 8T Front Lamp Headlight Range Control Module 8K5907357B
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Audi Q3 8U Petrol Alternator Generator 14V 140A 06J903023B
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Audi A6 S6 C6 Body Comfort Module Convenience Control Unit 4F0907289J
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Audi A4 B7 Aerial Antenna Amplifier Module 8H0035225R
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Audi TT 8S Module BCM Body Control Unit Module ECU 5Q0937084BR
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Audi Q5 8R Multimedia Radio Control Module Head Unit 4G0035061Q
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Audi Q5 FY Rear Door Wiring Harness Loom Cable Left Right N/O/S 80A971687H
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Audi A1 8X 1.4 TSI CAXA 122HP Engine Control Unit ECU Kit 03C906016BG BCM + Key
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Audi A5 8T Headlight Headlamp Module Control Unit 8K0907357
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Audi TT FV A/C Air Condition Climate Control Module Unit ECU 8S0820043
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Audi A5 8T Coupe Driver's Door Module Control Unit 8K0959793A
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Audi A5 8T 2.0 TDI CNHA 190HP Engine Control Unit ECU 04L906021BG Automatic
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Audi S4 B8 3.0 TFSI CGWC 333HP Quattro Engine Control Module ECU Kit 8K5907551B
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Audi S3 8Y 2.0 TFSI Starter Motor Engine Petrol 02E911022H
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BCM Module Audi Q7 4L A6 C7 A8 4H Body Control Unit ECU 4L0919475A
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Audi A5 8T Display Screen Dashboard Multifunction Monitor Unit 8T0919604A
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Audi A4 7B 2.0 TFSi D6G519 Engine Starter Motor 06D911023
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Audi A3 8P Control Unit Gateway Module ECU 8P0907530C
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Audi A4 B9 TDI Diesel Adblue Dosing Module Control Unit 4M0907355B
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Audi A3 8P Body Control Comfort Unit Module BCM Unit 8P0907279C
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Audi A4 B8 A5 8F 2.0 TDI Diesel Engine Alternator Generator 04L903017D
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Audi A4 B8 Bluetooth Multimedia Interface Control Module Unit ECU 8T0862335B
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Audi A6 C6 2.0 TFSI BPJ 170HP Engine ECU Kit 4F2910115B Ignition + Key Manual
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Audi A3 8P Alternator Main Cable Wiring Harness Loom 1K0971349FL
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Audi Q3 8U Display Screen Multimedia Navigation Sat 8U0857273B
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Audi A3 8P 1.6 TDI 105HP CAYC Diesel Engine ECU Kit 03L906023M 2 Keys Manual
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Audi A4 B8 A5 8T A6 C6 Battery Negative Terminal Cable Wiring Wire 8K0915181B
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Audi A4 B7 Window Antenna Amplifier Module 8E5035225D
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Audi S1 8X 2.0 TFSI CWZA 231HP Quattro Engine Control Unit ECU 06K907425C
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Audi A3 8P Air Module Control Sensor SRS System ECU Unit 8P0959655H
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Audi TT 8J Audio Amplifier Premium Sound Booster Control Unit Bose 8J0035223C
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Audi A4 B8 Body Control Module BCM Comfort Control Unit 8K0907064DP
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Audi A7 4G A6 C7 Daytime Running Lights DRL LED Headlight Module Unit 4G0907697J
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Audi A4 B7 4.2 FSI V8 Petrol Engine Alternator Generator 079903018X
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Audi A3 S3 Q2 RS3 Multimedia Navigation Card Reader Head Unit 8V1035035B
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Audi A3 8V 2.0 TDI CRLB Diesel Alternator 03F903023D
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Audi A5 F5 Sat Navi MMI Multimedia Radio SD Reader Head Unit Harman 8W5035035C
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Audi A5 8T Body Control Comfort Unit Module BCM Unit ECU 8K0907064EB
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Audi A5 8T Towbar Trailer Hitch Control Module Unit ECU HELLA 8K0907383B
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Audi A3 8V Negative Battery Terminal Cable Harness Wiring Loom 5Q0915181H
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Audi A5 8T Park Parking Assist PDC Distance Control Unit Module 8K0919475B
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Audi Q7 4L 4.2 TDI Quattro Positive HV Battery Terminal Cable Harness 7L0971225
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Audi TT 8J Audio Amplifier Radio Sound BOSE Unit 8J0035223D
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Audi TT 8J Tyre Pressure Control Module Unit 8J0907274
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Audi A6 C6 Body Control Comfort Unit Module BCM Unit ECU 4F0907289G
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Audi A6 C7 PDC Parking Distance Sensor Module Control Unit ECU 4H0919475Q
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Audi A5 F5 Camera Control Module Unit ECU 4M0907428F
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Audi A3 8V Door Wiring Harness Loom Rear Left N/S 8V5971687K
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Audi A4 B9 2.0 TDI DTNA 163HP Engine Control Unit ECU 05L907309 Automatic
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Audi Q3 8U Boot Tailgate Control module Unit 8U0959107
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Audi Q7 4L Air Suspension Module Regulation Control Unit 4L0910553H
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Audi A5 8T Headlight Range Headlamp Control Unit Module ECU 8K0907357A
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Audi A3 8P 1.9 TDI BLS 105HP Engine Control Module Unit ECU 03G906056S Manual
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Audi Q5 8R Body Control Module ECU Control Unit 8K0907064KG
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Audi A6 C6 Bluetooth Multimedia Interface Control Module Unit ECU 4E0910336MX
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Audi A4 A5 A6 Q5 Q7 Radio Control Head Unit Harman Becker 4F0035061D
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Audi A3 8P Air Module Control Sensor SRS System ECU Unit 8P0959655S
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Audi A1 8X 1.2 TFSI CBZA Petrol Engine Alternator Generator 04C903023L
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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 TT 8J Audio Amplifier Radio Lear Sound Unit 8J0035223B
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Audi A5 8T 2.0 TFSI Petrol Fuel Injectors Wiring Cable Harness 06H971627
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Audi S3 8P Audio Sound BOSE Amplifier Stereo System Module 8P4035223D
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Audi A6 C6 Display Screen Multimedia Navigation Dashboard Unit 4F0919603
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Audi A4 B8 2.0 TDI 143HP CAGA Diesel Engine Control Unit ECU Kit 03L906022JM
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Volkswagen Golf Mk8 Audi Q2 GA A3 8V 8Y 1.5 TSI Alternator 14V 140A 05E903026K
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Audi A7 S7 4G 4.0 TFSI Petrol Engine Alternator Generator 079903015P
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Audi TT FV Impact Body Sound Accoustic Control Module ECU 8S0907159
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Audi A5 8T MMI Multimedia Navigation Radio Control Head Unit 4G0035061S
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Audi Q3 8U 2.0 TDI Fuel Pump Sender Control Relay Module Unit ECU 5Q0906121F
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Audi TT FV Stereo Radio Sound System Speaker Amp Amplifier 8S0035465B
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Audi Q7 4L CD Player Changer Multimedia Module Control Unit 4L0910110B
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Audi S3 8Y Diagnostic Interface Data Bus Gateway Control Unit 5QS907530A
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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 .