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.
GB
Make
Category
Subcategory
Condition
In Stock
Price
-40%
Part no. 8K0907063DG
Audi Q5 8R Body Control Comfort Unit Module Unit 8K0907063DG
Product currently unavailable
Part no. 4G0907697J
Audi A7 4G A6 C7 Daytime Running Lights DRL LED Headlight Module Unit 4G0907697J
Product currently unavailable
Part no. 8E1971029AF
Audi A4 B7 Front Door Card Wiring Harness Loom Cable Passenger Side 8E1971029AF
Product currently unavailable
Part no. 4F0905852D
Audi Q7 4L Steering Column Lock Mechanism Control Unit Module ECU 4F0905852D
Product currently unavailable
Part no. 4M0907594J
Audi Q5 FY Top Sunroof Opener Control Module Unit ECU 4M0907594J
Product currently unavailable
Part no. 8J0907404
Audi TTRS 8J 2.5 TFSI CEPA Quattro 340HP Engine Control ECU 8J0907404 Manual
Product currently unavailable
Part no. 4F0905852B
Audi Q7 4L Steering Column Lock Mechanism Control Unit Module ECU 4F0905852B
Product currently unavailable
Part no. 4E0910336M
Audi A6 C6 Q7 4L Bluetooth Telephone Control Module Unit ECU 4E0910336K
Product currently unavailable
Part no. 8K0907801F
Parking Brake Control Audi A4 B8 S5 8T Electric Brake Unit Module 8K0907801F
Product currently unavailable
Part no. 4H0959655C
Audi A6 C7 2.0 TDI SRS Air Module Control Unit Sensor ECU 4H0959655C
Product currently unavailable
Part no. 8T0971365J
Audi A5 8T Seat Cable Front Wiring Loom Harness Left Right N/O/S 8T0971365J
Product currently unavailable
Part no. 03C906016DM
Audi A1 8X 1.4 TSI CAXA 122hp ECU Engine Control Unit Automatic 03C906016DM
Product currently unavailable
Part no. 5Q0959592K
Audi Q2 GA Door Module Control Unit Front Passenger Side 5Q0959592K
Product currently unavailable
Part no. 8J0959433
Audi TT 8J Body Control Comfort Unit Module BCM Unit 8J0959433
Product currently unavailable
Part no. 8K0907064FE
Audi A4 B8 BCM2 Body Comfort Module Control Unit Board Power Supply 8K0907064FE
Product currently unavailable
Part no. 8K0907163
Audi S5 8T Differential Control Unit Function Module 8K0907163
Product currently unavailable
-40%
Part no. 079903015F
Audi S5 8T Quattro 4.2 FSI Petrol V8 CAUA Alternator Genarator Valeo 079903015F
Product currently unavailable
Part no. 03G903016EX
Audi A4 B8 2.0 TDI Alternator Generator 03G903016EX
Product currently unavailable
Part no. 06M907309D
Audi A4 S4 B9 3.0 TFSI 355HP CWGD Quattro Engine Control Unit ECU 06M907309D
Product currently unavailable
Part no. 8V0857273F
Audi A3 8V Display Screen Sat Nav Navigation Dashboard 8V0857273F
Product currently unavailable
Part no. 8T0919604A
Audi A5 8T Display Screen Dashboard Multifunction Monitor Unit 8T0919604A
Product currently unavailable
Part no. 5Q0907561F
Audi A3 8V VW Golf Mk7 VII Front Radar Distance Control Unit Module 5Q0907572F
Product currently unavailable
Part no. 8R0971095A
Audi Q5 8R Front Bumper PDC Parking Sensor Wiring Harness Loom 8R0971095A
Product currently unavailable
-5%
Part no. 8K0959792S
Audi A4 B8 Front Door Control Module Unit ECU Passenger Side 8K0959792S
Product currently unavailable
Part no. 4H0906093G
Audi A8 D4 Diesel Engine Fuel Pump Control Unit Module 12V 4H0906093G
Product currently unavailable
Part no. 8P0035152F
Audi A3 8P Sat Navi Stereo Radio Audio MMI Head Unit CD Bosch Unit 8P0035152F
Product currently unavailable
Part no. 04L907309A
Audi TT Mk3 8S 2.0 TDI CUNA 184HP Engine Control Unit ECU 04L907309A Manual
Product currently unavailable
Part no. 8R0907401J-2
Audi A5 8T 3.0 TDI CCWA 240HP Quattro Engine ECU Kit Ignition + 2 Key 8R0907401J
Product currently unavailable
Part no. 8V0971085G
Audi A3 8V Front Bumper Crash Impact Sensor Wiring Harness Loom Cable 8V0971085G
Product currently unavailable
Part no. 8P0862335S
Audi S3 8P Interface Bluetooth Control Module Harman Becker ECU 8P0862335S
Product currently unavailable
Part no. 8N0937550A
Audi TT 8N Battery Fuse Box Power Distribution 8N0937550A
Product currently unavailable
Part no. 4M0907355E
Audi A4 B9 8W TDI Diesel Adblue Dosing Module Control Unit 4M0907355E
Product currently unavailable
Part no. 3Q0907338C
Audi VW Seat Skoda Headlight Aim Range Control Unit Module ECU Xenon 3Q0907338C
Product currently unavailable
Part no. RHD-81C035726
Audi Q2 GA USB Adapter Port Socket Connector 81C035726
Product currently unavailable
Part no. 8X0919884J
Audi Universal SD Card Map Pilot Navigation Europe 2016 8X0919884J
Product currently unavailable
Part no. 8K0907063C
Audi S5 8T Body Comfort Control BCM Supply Module Unit ECU 8K0907063C
Product currently unavailable
Part no. 06F971082F
Audi TT 8J 2.0 TFSI Petrol Fuel Injectors Wiring Harness 06F971082F
Product currently unavailable
Part no. 03L903023-1
Audi A3 8V Diesel Engine Starter Alternator Electrical 14V 140A 03L903023
Product currently unavailable
Part no. RHD-8T2035666A
Audi Q5 8R A5 8T Sat Navi Stereo Radio Audio MMI Head Unit CD Player 8T2035666A
Product currently unavailable
Part no. 7N0907530AG
Gateway Control Skoda Seat Volkswagen Audi TT 8J Unit Module 7N0907530AG
Product currently unavailable
Part no. 8J0971029AE
Audi TT 8J Driver's Side Door Wiring Harness Loom 8J0971029AD
Product currently unavailable
Part no. 8J0971030AE
Audi TT 8J Front Left N/S Door Wiring Harness Cable Lom 8J0971030AE 8J0971030AB
Product currently unavailable
Part no. 5Q0959593A
Audi A3 8V Door Module Control Unit Front Driver's Side 5Q0959593A
Product currently unavailable
Part no. 8W9035382B
Audi A4 S4 B9 Boot Trunk Subwoofer Rear Bass Speaker Audio Unit 8W9035382B
Product currently unavailable
Part no. 8K0959792H
Door Control Module Audi S4 A4 B8 A5 8T Front Right O/S Passenger 8K0959792H
Product currently unavailable
Part no. 80A915181A
Audi Q5 8R Battery Earth Negative Terminal Cable Lead 80A915181A
Product currently unavailable
Part no. 4N0907064AM
Audi Q5 FY Body Control Unit Module BCM2 On-board Power Supply 4N0907064AH
Product currently unavailable
Part no. 8V0035020J
Audi A3 8V Dashboard Sat Nav Drive Unit Multimedia Infortaiment 8V0035020J
Product currently unavailable
Part no. 8X0060884Q
Navigation SD Card Map Audi A6 C7 A7 4G A1 8X Pilot Europa 2022 8X0060884Q
Product currently unavailable
-5%
Part no. 4F0051510K
Audi Cable Adapter iPod Connection 4F0051510K
Product currently unavailable
Part no. 4H0907064DN
Audi A6 C7 BCM Body Comfort Convenience Module Unit ECU 4H0907064DN
Product currently unavailable
-40%
Part no. 4E0035652E
Audi A6 C6 MMI Multimedia Sat Nav Navigation Control Head Unit 4E0035652E
Product currently unavailable
-40%
Part no. 5Q0937084DG
Audi S3 8V BCM Body Control Module Unit ECU 5Q0937084DG
Product currently unavailable
Part no. 8W0035736
Audi A4 B9 Connector AUX USB Adapter Port Socket 8W0035736
Product currently unavailable
Part no. 8K0907063DJ
Audi RS4 B8 Body Control Unit Module ECU BCM 8K0907063DJ
Product currently unavailable
Part no. 8E0035186AK
Audi A4 B7 Stereo Radio Audio Head Unit CD Player 8E0035186AK
Product currently unavailable
Part no. 8K0907064CQ
Audi A5 8T Body Control Comfort Unit Module BCM Convenience Unit ECU 8K0907064CQ
Product currently unavailable
Part no. 8P4971029E
Audi A3 8P Door Wiring Front Right O/S Harness Loom Cable 8P4971029E
Product currently unavailable
Part no. 06B903016AB
Audi A4 B7 Petrol Engine Alternator Generator Electric Unit 14V 140A 06B903016AB
Product currently unavailable
Part no. 04L907309P
Audi A3 8V 2.0 TDI DFGA 150HP Engine Control Unit ECU 04L907309P Automatic
Product currently unavailable
Part no. 5Q0937084DC
Audi A3 RS3 8V Body Control Module BCM Control Unit ECU Power Supply 5Q0937084DC
Product currently unavailable
Part no. 4F0907801A
Audi A6 C6 Parking Brake Handbrake Module Control Unit 4F0907801A
Product currently unavailable
Part no. RHD-8X2035711C
Audi A3 8V Microphone Cable Wiring Loom Cable Harness 8X2035711C
Product currently unavailable
Part no. 03G911023A
Audi A4 B7 2.0 TDI Starter Motor Engine Diesel 03G911023A
Product currently unavailable
Part no. 8P4971030F
Audi A3 8P Front Door Wiring Right O/S Harness Loom Cable 8P4971030F
Product currently unavailable
Part no. 05L907309B-1
Audi Q2 GA 35 TDI DTTC 150HP Quattro Engine ECU Kit 05L907309B Ignition + Key
Product currently unavailable
Part no. 8XA035192F-1
Audi A1 8X Stereo Sat Navi Navigation Radio Head Unit 8XA035192F
Product currently unavailable
Part no. 8K0907064GH
Comfort Unit Audi A4 S4 B8 Q5 8R Central Control Module BCM Unit ECU 8K0907064GH
Product currently unavailable
Part no. 4G0919158M
Audi RS6 C7 Air Condition A/C Climate Control Module Unit 4G0919158M
Product currently unavailable
Part no. 8R0907160
Audi Q5 8R Engine Noise Control Module Unit ECU 8R0907160
Product currently unavailable
Part no. 7P0915181C
Audi A1 8X HV Battery Cable Loom Harness Wiring Negative Terminal 7P0915181C
Product currently unavailable
Part no. 8K0959792P
Audi A4 S4 B8 Q5 8R Front Right Door O/S Control Unit Module ECU 8K0959792P
Product currently unavailable
Part no. 8R0907333
Audi Q5 R8 3.0 TDI CGQB Seat Heater Control Module Unit 8R0907333
Product currently unavailable
Part no. 8K0959793P
Audi A4 S4 B8 Q5 8R Front Left Door N/S Control Unit Module ECU 8K0959793P
Product currently unavailable
Part no. 4M0959795N
Audi A4 B9 Door Module Rear Left Right N/O/S Control Unit Module ECU 4M0959795N
Product currently unavailable
Part no. 5Q0937125A
Fuse Relay Box Volkswagen Audi Skoda Seat Engine Bay Supply Unit 5Q0937125A
Product currently unavailable
Part no. 8S0971029C
Audi TT FV Front Driver Side Door Wiring Loom Harness 8S0971029C
Product currently unavailable
Part no. 83A823531
Audi Q3 F3 Front Bonnet Hood Center Lock Bowden Cable 83A823531
Product currently unavailable
Part no. 8K0959655S
Audi A3 8P Air Bag Module Control Unit ECU SRS Module Unit 8K0959655S
Product currently unavailable
Part no. 8K5907311-1
Audi A5 8T 3.0 TDI CLAB 204HP Engine ECU Kit Ignition + Key 8K5907311 Automatic
Product currently unavailable
Part no. 8Y0947355H
Audi A3 S3 RS3 8Y Light LED Module Control Unit 8Y0947355H
Product currently unavailable
Part no. 4L1910401H
Audi Q7 4L 3.0 TDI Quattro Engine Control Unit Module ECU 4L1910401H Automatic
Product currently unavailable
Part no. 04L907309R-2
Audi A3 8V 1.6 TDI 110HP DBKA Engine ECU 04L907309R Manual
Product currently unavailable
Part no. 8T0907468S
Audi A4 S4 B8 Central Gateway Module ECU Control Unit Temic 8T0907468S
Product currently unavailable
Part no. 8R0907468P
Audi A4 B8 Gateway Interface Diagnostic Control Module Unit ECU 8R0907468P
Product currently unavailable
Part no. 4G0035061
Audi A5 S5 8T Multimedia Navigation Radio Control Head Unit 4G0035061
Product currently unavailable
Part no. 3WA959595A
Audi A3 RS3 8V Door Control Unit ECU Module Front Driver's Side 3WA959595A
Product currently unavailable
Part no. 4E0955559B
Audi Q7 4L Front Windscreen Rain Light Solar Sensor Unit 4E0955559B
Product currently unavailable
Part no. 1S0919275D-BLK
Audi Q3 8U PDC Parking Distance Control Sensor Black - Z9Y 1S0919275D
Product currently unavailable
Part no. 03L906018ML-1
Audi Q5 8R CGLB 2.0 TDI 170HP Quattro Engine Control ECU Kit 03L906018ML Manual
Product currently unavailable
Part no. 8W0907541
Audi SQ5 FY Distronic Radar Sensor Control Unit Module Left N/S 80A907541
Product currently unavailable
Part no. 3AA962243
Audi A8L 4H Tailgate Lift Boot Lid Control Unit Module Trunk 3AA962243
Product currently unavailable
Part no. 8P0057195GX
Audi A3 8P Symphony Multimedia Stereo CD Player Radio Head Unit 8P0057195GX
Product currently unavailable
Part no. RHD-4G2919601P
Audi RS6 C7 Display Screen Radio Multimedia Navigation Sat 4G2919601P
Product currently unavailable
Part no. 83A035382A
Audi RSQ3 F3 Boot Trunk Subwoofer Rear Bass Speaker 83A035382A
Product currently unavailable
Part no. 8P3035223
Audi S3 8P Audio Sound System Amplifier Bose 8P3035223
Product currently unavailable
Part no. 8V0035020B-1
Dashboard Sat Navigation Audi A3 S3 8V Unit System 8V0035020B
Product currently unavailable
Part no. 3Q0907590D
Lane Assist Module Audi A3 S3 RS3 8V Blindspot Control Unit Left N/S 3Q0907590D
Product currently unavailable
Part no. 8T0907566B
Audi A4 B8 Blind Spot Radar Sensor Control Module Rear Right O/S 8T0907566B
Product currently unavailable
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 .