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 A5 8T Park Parking Assist PDC Distance Control Unit Module 8K0919475B
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Audi A4 B8 A5 8F 2.0 TDI Diesel Engine Alternator Generator 04L903017D
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Audi A6 C6 Diagnostic Interface Gateway Module ECU Control Unit 4F0907468M
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Audi A6 C8 MIB2 Multimedia Navigation Radio Control Head Unit 4K0035063D
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Audi A5 8T Remote Radio Alarm Key Button Control Unit Module 868 MHZ 8T0959754
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Audi S3 8V Starter Alternator Wiring Harness 5Q0971230HH
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Audi A5 8T 2.0 TDI CAHA 170HP Engine Control Module ECU 03L906022RM Manual
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Audi A4 B8 Sat Nav Multimedia DAB Radio Control Head Unit 4G0035056
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Audi RS4 B8 Front Bumper PDC Wiring Park Assist Sensor Harness 8K0971095G
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Audi A5 F5 Sat Navi MMI Multimedia Radio SD Reader Head Unit Harman 8W5035035C
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Audi A3 8P Battery Box Tray Housing Holder Bracket Cover 1K0915333B
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Audi A4 B7 Harman Becker Bluetooth Module Interface Control Unit 8P0862335Q
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Audi TT 8N Relay Unit Module 431951253D
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Audi A5 8T Headlight Range Headlamp Control Unit Module ECU 8K0907357A
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Audi A6 C6 Display Screen Multimedia Navigation Dashboard Unit 4F0919603
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Audi A4 B7 4.2 FSI V8 Petrol Engine Alternator Generator 079903018X
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Audi A3 8P Gateway Interface Onboard Supply Control Module Unit ECU 8P0907279P
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Audi A3 8V 2.0 TDI CRLB Diesel Alternator 03F903023D
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Audi A6 C6 Safety Ultra Sonic Alarm Movement Detector Module Unit 4F0910177
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Audi A4 B8 A5 8T Front Lamp Headlight Range Control Module 8K5907357B
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Audi A3 8P Alternator Main Cable Wiring Harness Loom 1K0971349FL
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Audi Q3 S Line Multimedia Radio Sat Nav Screen Display Head Unit 8U0857273E
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Audi A4 B9 Dashboard Loudspeakers Tweeter Speaker Front 4M0035454B
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Audi S8 D3 Multimedia Display MMI Mechanism Carbon Fiber Look 4E0919603K
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Audi A4 B9 A5 F5 Door Module Rear Right Left N/O/S Control Unit 8W0959595M
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Audi A6 C7 2.0 TDI SRS Air Module Control Unit Sensor ECU 4H0959655C
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Skoda Fabia 5J Roomster Body Comfort Module Control Unit 5J0959433A
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Audi A3 8V 2.0 TDI DFGA Diesel Starter Motor 02E911022C
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Yaw Sensor Audi A4 B8 A5 8T ESP Rotation Rate Unit Module 8K0907637D
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Audi Q7 4L Air Suspension Module Regulation Control Unit 4L0910553H
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Audi A4 B7 1.8T BZB 163HP Engine Control Unit Module ECU Set 8E0909518AQ
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Audi TT 8J BCM Body Control Module Unit ECU 8P0907063R
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Audi A3 8P Steering Angle Steering Wheel Column Control Module ECU 8P0953549K
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Audi A4 B9 Gateway Control Module Unit ECU 4M1907468D
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Audi A3 8V Multimedia Radio Sat Nav CD Player Head Unit 8V0035874C
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Audi Q7 4L Headlight Module Ballast Control Unit 89393773
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Audi A1 8X 1.4 TFSI CAXA Alternator Wiring Harness Cable Loom 6R0971349BK
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Audi TT FV Stereo Radio Sound System Speaker Amp Amplifier 8S0035465B
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Audi Q7 4L Positive Battery Terminal Cable 4L0971225D
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Audi Q7 4L CD Player Changer Multimedia Module Control Unit 4L0910110B
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Audi A5 F5 Camera Control Module Unit ECU 4M0907428F
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Audi A4 B8 Door Wiring Harness Loom Front Left N/S Cabling 8K0971030M
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Audi TT 8J Audio Amplifier Radio Lear Sound Unit 8J0035223B
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Audi A4 B8 A5 8T Diesel 2.0 TDI Starter Motor Manual 03L911024
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Audi Q7 4L Power Distribution Box Control Unit Plus Housing Cover 7L0937401B
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Audi Q3 8U Sat Navi Stereo Radio Audio Head Unit CD Player 8U1035192A
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Audi A3 8P Air Module Control Sensor SRS System ECU Unit 8P0959655H
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Audi Q3 8U Alternator Generator Unit 14V 140A 06J903023R
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Audi S3 8P Audio Sound BOSE Amplifier Stereo System Module 8P4035223D
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Audi A4 B9 Wireless Charger Centre Console Phone Charging Module 8W0035502C
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Part no. 04C903023L
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 A4 B7 Aerial Antenna Amplifier Module Left N/S 8H0035225S
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Audi A5 8T Front Seat Control Module Unit Left Right N/O/S 8T0959760C
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Audi A3 8V A-Pillar Speaker Tweeter Front Left Right N/O/S 8V0035399C
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Audi S3 8Y Sportback Rear Door Wiring Harness Loom Left Right N/O/S 8Y0971693D
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Door Module Audi A3 8V VW Golf 7 Seat Leon 3 Front Right O/S 5Q0959592D
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Audi A4 S4 B9 3.0 TFSI 355HP CWGD Quattro Engine Control Unit ECU 06M907309D
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Audi A3 8V VW Golf 5G Central Gateway Control Unit Module Relay ECU 5Q0907530AL
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Audi A4 B8 8K A5 8T Sound System Audio Amplifier Amp Unit 8T0035223AB
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Audi A5 8T 2.0 TDI CNHA 190HP Engine Control Unit ECU 04L906021BG Automatic
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Audi A5 8T 2.0 TFSI CDNB Automatic Gearbox Module Control Unit 8K0927155AA
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Audi Q7 4L Engine Starter Motor Actuator Starter 079911021D
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Part no. 8P0035186G
Audi A3 8P Multimedia Radio CD Player Head Unit 8P0035186G
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Part no. 5QS907530A
Audi S3 8Y Diagnostic Interface Data Bus Gateway Control Unit 5QS907530A
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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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Audi A5 8T Audio Amplifier Sound Booster Control Unit Module 8T0035223
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Audi A7 S7 4G 4.0 TFSI Petrol Engine Alternator Generator 079903015P
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Part no. 4E0035541S
Audi Q7 4L Radio Multimedia Receiver Control Module Unit 4E0035541S
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Audi A3 8V Multimedia Display Screen Radio Sat Nav Head Unit 8V0857273P
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AUDI Q7 4L Quattro 3.0 TDI BUS Diagnostic Gateway Interface Module 4F0907468R
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Audi A5 8T Display Screen Dashboard Multifunction Monitor Unit 8T0919604A
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Audi A3 8V 1.6 TDI DGTE 115 HP Engine ECU Kit Ignition + Key 04L907445G Manual
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Audi A3 8V Door Wiring Harness Loom Rear Left N/S 8V5971687K
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Audi A5 8T Front Driver Site Module Control Unit Seat Adjustment Seat 8K0959760D
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Gateway Module Audi A3 8P Volkswagen Golf Mk6 Control Unit ECU 1K0907530AF
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Audi Q2 GA Gateway Diagnostics Interface Control Module 3Q0907530AC
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Audi Q7 4L PDC Parking Distance Sensor Control Module Unit ECU 4L0919283E
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Audi A3 8V MMI Multimedia CD Player Head Unit Infotainment 8V0035020H
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Audi A3 8P 2.0 TDI CBAB 140HP Engine ECU Kit Ignition + Key 03L906022BQ Manual
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Audi S8 D3 S6 C6 Alternator Water Cooled 190A 14V 5.2 FSI V10 079903021J
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Audi A3 8V Wireless Charger Centre Console Phone Charging Module Unit 81A035502
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Audi A6 C6 Electric Parking Hand Brake Module Control Unit ECU 4F0907801B
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Audi A6 C7 PDC Parking Distance Sensor Module Control Unit ECU 4H0919475Q
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Audi A1 8X 1.4 TSI Engine Wiring Loom Harnes 03C971612BR
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Part no. 4H0907163A
Audi A7 4G S-Tronic NSK Automatic Gearbox Control Module Unit 4H0907163A
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Audi Q2 GA Sat Nav Multimedia Control Unit Module SD SIM MIB2 HIGH 81A035035G
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Audi A5 8T 2.0 TFSI Petrol Fuel Injectors Wiring Cable Harness 06H971627
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Part no. 8P0953549B
Audi A3 8P Steering Wheel Position Angle Sensor Control Unit Module 8P0953549B
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Part no. 8K0907144E
Audi A5 8T Dynamic Active Steering Module ECU 8K0907144E
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Audi S3 8V Module BCM Body Control Unit Module ECU 5Q0937084CP
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Part no. 4E0955559C-1
Audi A6 C6 Front Windscreen Rain Light Solar Sensor Unit 4E0955559C
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Part no. 4F0971589A
Audi S6 C6 Steering Wheel Multifunction Wiring Loom 4F0971589A
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Part no. 4G8959793E
Audi A6 C7 Front Door Control Module Unit ECU Driver's Side 4G8959793E
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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 .