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. 8R2907115-1
Audi Q5 8R 2.0 TFSI CNCD 224HP Engine Unit ECU Kit 8R2907115 Key Ignition Manual
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Audi A5 8T Sportback Front Door Module Control Unit Driver's Side 8T0959793B
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Audi Volkswagen Varta Car Battery AGM 92Ah 850A 7P0915105C
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Audi A4 B7 Engine Alternator Mount Support Bracket 1.9 2.0 TDI 03G903143D
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Audi A4 B9 Front Door Module Control Unit Passenger Side 8W0959592G
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Audi A4 B7 Convertible Front Driver Side Door Wiring Harness 8H1971035CN
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Audi A5 8T A4 B8 8K 2.0 TFSI CDNC 211HP Engine ECU Kit 8K2907115P Key + Ignition
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Audi A4 B7 Convertible Front Driver Side Door Wiring Harness Cable 8H1971029AL
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Audi A6 C6 Hifi Audio Sound Speakers Amplifier Control Unit ECU 4F0910223C
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Audi A4 B9 Rear Bumper PDC Parking Sensor Harness Wiring Loom Cable 8W9971104M
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Audi A6 C6 Amplifier Audio Sound Control Unit Module Controller 4F0910223M
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Audi A6 C6 2.0 TDI Relay Condenser 4FO903291
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Part no. 06F903023H
Audi A4 B7 A6 C6 Alternator Generator 1.9 TDI Diesel 06F903023HX
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Audi A5 8T Seat Cable Front Left Right N/O/S Wiring Loom Harness 8T0971365C
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Audi Q5 8R Air Module SRS System Control Sensor ECU Unit 8R0959655E
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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 A1 8X Negative Battery Terminal Cable Wiring 8K0915181N
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Audi RS3 8V 2.5 TFSI Alternator 14V 180A 07K903023J
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Audi TT 8J Alternator Main Cable Wiring Harness Loom 8J0971349A
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Audi A3 8P Gateway Control Unit Module ECU 8P0907530B
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Audi A6 C7 Front Door Control Module Unit ECU Driver's Side 4G8959793E
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Audi Q7 4M Fuse Box Power Distribution Unit Control Module 4M0941824AP
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Audi A5 8T Onboard Comfort Supply Control Module Unit ECU 8K0907063AC
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Audi A4 S4 B8 Body Control Comfort Unit Module BCM2 Unit ECU 8K0907064FF
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Audi A4 B8 A6 C7 A7 C7 4G Fuel Injector Wiring Cable 3.0 TFSI 06E971627N
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Audi A6 C6 Antenna Amplifier Control Unit Module ECU 4F9035225H
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Skoda Octavia 1Z Audi A3 8P Alternator Wiring Harness Loom Cable 1K0971349CR
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Audi TT FV Starter Motor Engine Diesel 02M911021S
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Audi A4 B7 Aerial Antenna Amplifier Module Left N/S 8H0035225S
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Audi Q7 4M Impact Sensor Unit Wiring Loom Harness Connector 4M0971677B
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CD Changer Audi S6 C6 A8 D3 6-Disc Magazine Head Unit MMI 4E0910110A
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Audi Q7 4L Front Memory Adjustment Module Control Left Right N/O/S 4L0959760
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Audi Q7 4L VW Touareg MK2 3.0 TDI Diesel Starter Motor 059911024E
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Audi A6 4F C6 3.0 TDI Diesel Starter Motor Bosch 0001109319 059911024D
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Audi Q2 GA Q3 F3 Rear Boot Trunk Lid Tailgate Control Unit Module 5Q0959107AB
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Audi A1 8X 1.4 TSI Engine Wiring Loom Harnes 03C971612BR
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Audi Q2 GA NAV Multimedia Navigation Display Screen MMI 8,25" 81A919605B
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Audi A5 S5 F5 Headlight Module LED Headlamp Control Unit 000330028P
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Audi A4 B8 A5 S5 8T Gateway Control Unit Module ECU 8T0907468L
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Audi Q7 4M Positive Battery Terminal Distribution Box 4M0941823E
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Audi A3 S3 8Y PDC Parking Distance Sensor 5WA919275C Kyalami Green - Z6A
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Audi A4 B8 3.0 TDI CAPA Diesel Alternator 04L903017A
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Audi TT 8N Alternator Main Cable Wiring Harness Loom 8J0971349CF
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Audi A4 B9 Rear Right O/S Door Wiring Loom Harness 8W0971687BR
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Audi A1 8X Headlight LED Module Daytime Light Lamp Control Unit 8X0998475
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Audi A6 C6 Alternator Main Cable Wiring Harness Loom 4K0971349L
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Audi A6 C7 CD Player Radio Stereo Head Unit MMI NAVI 4G0035193C
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Audi Q7 4L Air Suspension Level Height Adjustment Compressor Pump 4L0698007C
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Audi A3 8V Door Wiring Harness Loom Rear Left Right N/O/S 8V5971687Q
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Audi Q2 GA Rear Centre Loudspeaker Subwoofer 81A035382
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AUDI A8 4E S8 D3 CD Changer Control Module 6 CD unit 4E0057110C
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Audi A6 C6 Parking Brake Handbrake Module Control Unit 4F0907801
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Audi A4 B8 3.2 FSI Alternator Generator 06E903016S
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Audi Q7 4L Automatic Transmission Gearbox Control Unit Module 09D927750HT
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Volkswagen Passat B5 Audi A8 D3 A4 B6 Fuse Box Control Unit Module 8D1941824
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Volkswagen Passat B7 Engine Starter Motor Actuator Starter 0AM911024A
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Audi A1 8X Multimedia Radio CD Player Navigation Head Unit 8X0035183
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Part no. 8K5945095AA-1
Audi A4 B8 Saloon Rear Lamp Tail Light Wiring Harness Plug Left N/S 8K0973706
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Audi A3 8P Cable Door Harness Wiring Loom Passenger Front Left N/S 8P4971030K
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Part no. 04L911021B
Audi A4 B9 Engine Starter Motor Actuator Starter 04L911021B
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Audi A5 8T Seat Module Control Unit ECU Front Left Right N/O/S 8T0959760
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Audi A4 B7 Window Antenna Amplifier Module 8E5035225D
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Part no. 4H0907064FN
Audi A6 C7 Gateway Convenience Module Unit Body Control ECU 4H0907064FN
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Audi A5 F5 Camera Control Module Unit ECU 4M0907428F
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Audi A4 B7 Bluetooth Module Interface Control Unit Hands Free 8P0862335D
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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 8V Door Wiring Harness Loom Rear Left N/S 8V5971687K
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Part no. 4K0915181
Audi A6 C8 Negative Minus Earth Cable Battery Wiring Harness 4K0915181
£56.95
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Part no. 03L906018KL-1
Audi A5 8T 2.0 TDI Quattro CGLC 177HP Engine Control ECU 03L906018KL Automatic
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Audi A4 B8 2.0TDI CAHA 170HP Quattro Engine ECU Kit Ignition + 2 Key 03L906022RM
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Audi A5 8T 2.0 TFSI CDNC Fuel Pump Control Module Unit ECU 8K0906093D
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Audi A3 8P Multimedia Stereo Sat Nav CD Player Radio Head Unit 8P0057186SX
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Audi TT FV Driver's Seat Cable Seat Belt Warning Wiring Loom Harness 8S0971365F
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Audi A1 8X Q3 8U Front Door Module Driver's Side Control Unit ECU 8X0959793E
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Negative Battery Cable Audi A1 8X Volkswagen Polo Mk5 6R Cable 6R0971228S
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Audi A4 B6 B7 4.2 V8 FSI Alternator Bracket Mount Holder 079903805J
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Audi A3 8P VW Scirocco Mk3 Starter Motor Engine Valeo 1.4 TSI Petrol 02Z911024P
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Audi A5 F5 BCM Body Comfort Module Onboard Control Unit ECU 8W0907064EC
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Audi A5 F5 Seat Module Control Unit ECU Front Left Right N/O/S 4M0959760A
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Audi A6 C7 Front Door Wiring Harness Loom Left N/S Passenger's Side 4G5971030DJ
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Audi A6 C8 Alternator Earth Line Ground Wiring Harness Cable 4K0971238
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Part no. 8K0971687S
Audi A4 B8 Door Wiring Harness Loom Rear Left N/S Cabling 8K0971687S
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Audi A6 C7 A7 4G Engine Starter Motor 3.0 TFSI Petrol CGWD 06E911024A
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AUDI A8 S8 D3 Reversing Camera Control Module Rear View Unit ECU 4E0910441
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Audi A3 S3 8V Parking Assist PDC Control Module 5QA919283
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Part no. 4F0959793P
Audi A6 C6 Door Module Front Driver's Side Control Unit ECU 4F0959793P
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Part no. 420919275-1
Rear Bumper PDC Audi A5 Sensor Parking Distance Control 420919275 1706091849
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Part no. 8K0971030M
Audi A4 B8 Door Wiring Harness Loom Front Left N/S Cabling 8K0971030M
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Audi Q3 8U 2.0 TDI CUWA Fuel Pump Relay Control Unit Module ECU 5Q0906121M
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Audi A3 8P Yaw Sensor ESP Rotation Rate Control Unit Module 1K0907655A
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Audi A7 4G8 Central Gateway Control Lear Module Unit ECU 4G0907468G
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Part no. 8W9971104T
Audi A4 B9 Rear Bumper PDC Wiring Parking Sensor Loom Harness 8W9971104T
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Part no. 059903019N
Audi A5 8T Alternator Generator Electrical Unit 150A 14V 3.0 TDI 059903019N
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Audi A8 4E S8 D3 Head Unit Interface Control Module 4E0910732A
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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 .