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. 8J0971029AE
Audi TT 8J Driver's Side Door Wiring Harness Loom 8J0971029AD
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Parking Brake Control Audi A4 B8 A5 8T Q5 8R Electric Brake Module 8K0907801E
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Audi A1 8X Mulitmedia MMI Player Audio Stereo Radio Head Unit 8XA035192C
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Audi TT 8J Coupe Roadster Convertible Roof Control Module ECU 8J7959255B
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Audi TT 8J Front Left N/S Door Wiring Harness Cable Lom 8J0971030AE 8J0971030AB
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Headlight Module Audi A6 C7 A7 A8 Headlamp Range Control Unit 4H4907357C
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Audi A4 B9 Gateway Control Module Unit ECU 4M1907468D
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Audi A1 8X 1.6 TDI CXMA 115HP Engine ECU Kit 04L907309E Ignition + Key Manual
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Audi A5 8T 2.0 TFSI CDNB 180HP Engine ECU Kit 8K2907115Q 2 Keys + Ignition
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Audi A5 8T Engine Alternator Generator 14V 140A Bosch 2.0 TFSI 06H903016L
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Audi A6 C6 Parking Brake Handbrake Module Control Unit 4F0907801A
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Audi A8 D4 Boot Trunk Lid Tailgate Lift Control Unit Module ECU 3AA962243D
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Audi Q3 8U Battery Positive Terminal Cable Plus Pole Wiring Harness 5N0971228F
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Audi A3 8P 2.0 TDI 170HP CBBB Engine ECU Unit Kit 03L906022FD Key + Ignition
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Audi A7 4G8 3.0 TDI CZVA Adblue Control Module Unit ECU 4G0907355G
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Audi A4 B8 Body Control Comfort Unit Module BCM Convenience Unit 8K0907063AD
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Audi TT 8J Parking Distance Sensor Control Unit Module Rear 8P0919475F
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Audi A4 B7 A6 C6 Alternator Generator 1.9 TDI Diesel 06F903023HX
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Audi A5 8T Parking Brake Handbrake Module Control Unit 8K0907801C
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Audi A6 C6 Front Seat Control Memory Module Front Left N/S 4F0959760
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Audi TT 8J Radio CD Player Professional Audio Concern Head Unit 9199439
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Audi A5 8T Steering Wheel Air Module Driver's Side 8E0880201DH
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Audi A6 4F C6 3.0 TDI Diesel Starter Motor Bosch 0001109319 059911024D
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Audi A4 B8 Starter Alternator Wiring Loom Cable Harness 8K0971228F
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Audi A4 B8 Body Control Comfort Unit Module BCM Unit ECU 8K0907063K
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Audi Q3 8U Boot Tailgate Control module Unit 8U0959107
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Audi S8 D3 Petrol BSM 5.2 FSI Fuel Pump Control Module 4E0906093B
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Audi A5 8T 2.0 TFSI CDNC Fuel Pump Control Module Unit ECU 8K0906093D
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Audi A3 8V 1.6 TDI CLHA 105HP Engine Unit ECU Kit 04L907309B Key Ignition
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Part no. 03L911024B
Audi A6 C7 2.0 TDI CGLC Diesel Starter Motor 03L911024B
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Part no. 4G0907697F
Audi TT FV LED Headlight Ballast Module Daytime Running Lights Unit 4G0907697F
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Audi A3 8P A4 A5 B8 Q5 Alternator Generator Diesel Electrical Unit 03L903023K
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Audi A3 S3 Q2 RS3 Multimedia Navigation Card Reader Head Unit 8V1035035B
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Part no. 06E911021D
Audi S5 8T A6 C7 Engine Starter Motor 3.0 TFSI Petrol CGWC 06E911021D
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Volkswagen Touareg Audi Q7 Water Cooled Alternator 190A 059903015P
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Part no. 4M0959107B
Audi A4 B9 Boot Tailgate Control Module Unit 4M0959107B
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Audi A5 8T Remote Radio Alarm Key Button Control Unit Module 868 MHZ 8T0959754
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Audi A8 D4 4H Rear View Reverse Parking Camera Module Control Unit 4S0907441B
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Audi A4 B8 8K A5 8T Sound System Audio Amplifier Amp Unit 8T0035223AB
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Audi A4 B7 Cabriolet Roof Motor Wiring Harness Wiring Loom 8H0972387
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Audi A3 8P Multimedia Interface Unit Module Bracket Mount 8P0035785
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Audi S3 8V Module BCM Body Control Unit Module ECU 5Q0937084CP
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Audi Q3 8U A1 8X SD Card Map Pilot Navigation Europe 2013 8X0919884E
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Audi A4 B9 Wireless Charger Centre Console Phone Charging Module 8W0035502B
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Audi A4 B7 Fuel Pump Sender Control Relay Module Unit ECU 4F0906093G
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Speaker Amplifier Audi A4 B8 A5 8T Stereo Radio Sound System Amp 8R0035223G
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Gateway Control Module Audi A3 8V Volkswagen MK7 ECU Unit 5Q0907530Q
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Audi TT 8J Tyre Pressure Control Module Unit 8J0907274
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Audi A3 8P PDC Parking Assistance Distance Control Module Unit ECU 8P0919475M
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Part no. 8K0959795A
Audi A4 B8 Rear Door Module Control Unit ECU Left N/S 8K0959795A
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Part no. 8K0907064EC
Audi A4 B8 Body Control Comfort Unit Module BCM Convenience Unit 8K0907064EC
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Part no. MMI2G-CARPLAY-A1
Audi A1 8X Bluetooth Interface CarPlay MMI Retrofit Multimedia Unit Set MMI2G
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Part no. 02E911023H
Audi A3 Starter Motor Engine Diesel 02E911023H
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Part no. 8K0971688S
Audi A4 B8 Door Harness Loom Cable Wiring Rear 8K0971688S
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Audi A3 8V Multimedia Display Screen Radio Sat Nav Head Unit 8V0857273H
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Audi Q5 8R Negative Battery Terminal Cable Wiring Battery 8R0915181C
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Audi Q3 8U Air Module Crash Impact Sensor Control Unit 8U0959651
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Part no. 4H0907063DH
Audi A7 4G8 BCM Body Control Module Unit ECU 4H0907063DH
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Part no. 8T0035223
Audi A5 8T Audio Amplifier Sound Booster Control Unit Module 8T0035223
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Audi A3 8V Engine Starter Motor Actuator Starter 0AM911023G
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Part no. 8P0035192H
Audi A3 S3 8P Radio Media GPS Sat Audi Navigation Plus Unit 8P0035192H
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Part no. 8P0862335K
Bluetooth Interface Audi TT 8J A3 8P Multimedia Steuergerät ECU 8P0862335K
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Part no. 8W9035382B
Audi A4 S4 B9 Boot Trunk Subwoofer Rear Bass Speaker Audio Unit 8W9035382B
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Part no. 8K0907063C
Audi S5 8T Body Comfort Control BCM Supply Module Unit ECU 8K0907063C
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Part no. 4F0919603B
Audi A6 C6 Display Screen Multimedia Navigation Dashboard Unit 4F0919603B
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Part no. 8K0955557B
Audi A5 8T Crash Impact Sensor Unit Module Air Unit 8K0955557B
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Part no. 3Q0907530AC
Audi A3 8V Gateway Diagnostics Interface Control Module 3Q0907530AC
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Audi S3 8V 2.0 TFSI 300HP DNUE Quattro Engine Module ECU 06K907425J Automatic
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Audi TT 8N Radio Stereo Player Head Unit Chorus 4B0057186PX
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Part no. 06H911024B
Audi A5 8T 2.0 CNCD Petrol Starter Motor 06H911024B
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Part no. 8X0907063R
Audi A1 8X Central Gateway Control Unit Module Relay Supply ECU 8X0907063R
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Part no. 81A955559A
Volkswagen Audi Skoda Windscreen Rain Sensor Control Unit 81A955559A
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Part no. 8T0907468P
Audi S5 8T Gateway Control Unit Module ECU 8T0907468P
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Part no. 8P0035186S
Audi A3 8P Multimedia Concert Radio CD Player Head Unit 8P0035186S
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Audi A7 4G Fuse Box Relay Control Unit Module 4G0907355F
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Part no. 8F0959255
Audi A5 8F Convertible Folding Roof Module Control Unit 8F0959255
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Part no. 81A035382
Audi Q2 GA Rear Centre Loudspeaker Subwoofer 81A035382
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Part no. 420919275-IWH
Audi A4 A5 Q7 Rear Bumper PDC Parking Sensor Ibis White - Y9C 420919275
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Part no. 4E0919887M
Sat Nav Audi S8 D3 A6 C6 DVD Drive Navigation Control Unit 4E0919887M
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Audi A3 8V Park Parking Assist PDC Distance Control Unit Module 5QA919283E
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Audi A3 8P Volkswagen Touran Mk1 Skoda Yeti Engine Fuse Box 2.0 TDI 1K0937125D
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Part no. 8P3035382E
Audi A3 8P Boot Trunk Subwoofer Rear Bass Speaker 8P3035382E
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Part no. 03L911024
Audi A4 B8 A5 8T Diesel 2.0 TDI Starter Motor Manual 03L911024
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Audi A4 B9 Camera Control Module Unit ECU 8W0907428C
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Audi A6 C6 Amplifier Audio Sound Control Unit Module Controller 4F0910223H
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Audi S7 4G8 Front Lamp Headlight Level Sensor 3C0907503
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Audi TT 8J 2.0 TFSI BWA 200HP Engine Control Module ECU Manual 8J0907115N
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Audi A4 B7 Audio Radio Aerial Amplifier Control Unit Harman Becker 8E9035223D
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Audi A6 C6 Safety Ultra Sonic Alarm Movement Detector Module Unit 4F0910177
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Part no. 8W0907468C
Audi A4 B9 Body Gateway Module ECU Control Unit 8W0907468C
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Part no. 04L903017E
Audi A4 8K 2.0 TDI Diesel Engine Alternator Generator 04L903017E
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Part no. 06F903023FX
Audi A4 B6 B7 A1 8X 1.9 TDI 2.0 TDI Engine Alternator Generator 06F903023FX
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Part no. 8T2035186C
Audi A4 B8 A5 8T Radio Media Player Audio CD Head Unit Player Concert 8T2035186C
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Part no. 8XA959655
Audi A1 8X Air Module Control Sensor SRS System ECU Unit 8XA959655
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Part no. 4L0907290A
Audi Q7 4L Door Control Unit Module ECU Front Right O/S 4L0907290A
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Part no. 8T0862335F
Audi A4 B8 Bluetooth Multimedia Interface Control Module Unit ECU 8T0862335B
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Part no. 03L906022JM-1
Audi A4 B8 2.0 TDI 143HP CAGA Diesel Engine Control Unit ECU Kit 03L906022JM
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Part no. 03G906056S
Audi A3 8P 1.9 TDI BLS 105HP Engine Control Module Unit ECU 03G906056S Manual
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Part no. 80A971104A
Audi Q2 GA Rear Bumper PDC Parking Sensor Wiring Harness Loom Cable 80A971104A
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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 .