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. 02Z911024H
Volkswagen Passat B7 Starter Motor Actuator TDI Diesel Engine 02Z911024H
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VW Golf Mk5 Fuse Box Control Unit Relay Power Distribution Module 1K2941824
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Volkswagen Passat B7 Central Gateway Control Unit Module Relay ECU 7N0907530AN
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VW Transporter T5 Engine Cooling Radiator Fan Control Unit Module 7H0919506D
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VW Volkswagen Golf Mk7 Battery Tray Holder Mounting Bracket Support 5Q0915321H
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Volkswagen New Beetle 1.9 TDI BSW Engine Starter Motor 02A911024D
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Volkswagen Golf Mk7 Audi A3 8V Alternator 14V 140A 1.5 TSI 05E903026B
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Radio CD Player VW Volkswagen Caddy 2K Touran Head Unit 1K0057186AN
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Volkswagen Polo 6R 1.2 MPI CGPB 60HP Engine Control ECU 03E906023AL Manual
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Volkswagen Golf Sportsvan 1.5 TSI DADA 150HP Engine ECU Key + Lock 05E907309 DSG
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Alternator Audi A6 C6 3.0 TDI Diesel Engine Generator 059903015R 1068673
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Chrysler Voyager 2.8 CRD ENR Engine Alternator Generator 4868429AD
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VW Golf Mk5 Seat Well Cable Front Left N/S Wiring Loom Harness 1K0971391ES
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VW Volkswagen Polo 6R Engine Wiring Harness Cable Loom 1.2 CGPA Petrol 03F971612
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Volkswagen New Beetle Air Module Control Unit Sensor ECU 6Q0909605AL
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VW Volkswagen Transporter T5 Magnetic Clutch Relay Unit Black 454 7E0919506
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Volkswagen Touareg 3.0 TDI BKS 225HP Engine Control Unit ECU Kit 7L0907401F Key
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Volkswagen Sharan 7N Head Air Module Roof Side Curtain Right O/S 7N0880742
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Starter Volkswagen Crafter Diesel 2.5 TDi Starter Motor Bosch 076911023A
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Volkswagen New Beetle Convertible Roof Control Module Control Unit 1Y0959255C
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VW Volkswagen Touareg 7L Automatic Gearbox Module Control Unit ECU 09D927750EE
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Volkswagen Golf 5 GTI 1K 2.0 TFSI 200HP Engine Ecu Kit 1K0907115F Key Ignition
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Volkswagen Golf Mk7 5G Headlight Ballast Module Left Right N/O/S 7P5941572A
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Volkswagen VW Golf IV Body Control Module BCM Comfort Control Unit 5DK008214
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Volkswagen Passat B7 PDC Parking Assistant Module Control Unit 3AA919475N
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VW Caddy 1.9 TDI BLS 105HP Engine Control Unit Module ECU 03G906021PD Manual
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Volkswagen Polo 5 6R 1.2 TSI CJZC 90HP ECU Engine Control 04E907309AF
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VW Volkswagen Polo 9N 1.4 TDI Alternator Bracket Mount Carrier 045903143E
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Part no. 06F903023HX
Volkswagen Golf Mk5 2.0 TFSI Petrol Alternator Generator 06F903023HX
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Audi Volkswagen Seat Skoda Petrol Alternator Generator 14V 140A 06J903023D
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VW Volkswagen Polo 1.2 TSI CBZB Engine Wiring Harness Cable Loom 03F971612
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VW Volkswagen Golf 5 Radio CD Player Stereo Head Unit 1K0035186AD
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VW Volkswagen Sharan 7N Gateway Control Unit Module ECU 7N0907530S
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Volkswagen Touareg 7L 3.0 TDI Diesel Engine Starter Motor 059911024J
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Volkswagen Golf Sportsvan 1.5 TSI Alternator Valeo 14V 140A 04C903021A
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VW Volkswagen Polo 6R Negative Minus Earth Cable HV Battery Harness 6C0915181C
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VW Volkswagen Touran 1T 1.4 TSI Starter Motor Petrol Engine Unit 02Z911023G
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Volkswagen Sharan 7N Fuse Box Module Comfort BCM Control Unit ECU 5K0937084H
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VW Volkswagen Touran 1T 1.2 TFSI CBZB Starter Motor 0AH911023A
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Volkswagen New Beetle 1.4 TSI Petrol Engine Starter Motor 02Z911023E
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Volkswagen Phaeton 3D Engine Alternator Generator 14V 190A 5.0 Diesel 07Z903021F
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Volkswagen VW Golf Mk7 Negative Battery Terminal Cable Wiring 5Q0915181G
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Fuel Pump Module VW Volkswagen Sharan 7N Fuel Sender Control Unit ECU 7N0906093
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Volkswagen VW Passat B5 TDI Diesel Engine Starter Motor Actuator 068911024G
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VW Volkswagen Touareg 2.5 TDI BPE Engine Control Unit ECU Kit 070906016BT Key
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VW Golf Mk7 Wiring Loom PDC Front Parking Distance System Harness 5G0971095N
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Volkswagen VW Crafter Battery Lead Positive Cable Plus Pole Wiring VW9065400105
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Seat Ibiza Volkswagen Polo Mk5 6R 1.2 Petrol Alternator Generator 03D903025J
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Battery Cable Volkswagen VW Golf Mk6 VI Positive Plus Pole Lead 3C0971228K
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Volkswagen VW Golf Mk6 1.6 TDI Alternator Cable Wiring Harness Loom 1K0971349GA
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Volkswagen TOURAN 1T Body Control Comfort Unit Module BCM Unit ECU 1K0959433AR
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Volkswagen Fox 1.2 Petrol CHFB 55HP Engine Control ECU Manual 03D906023Q
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Volkswagen Touareg 7L Alternator Mounting Bracket Carrier Holder 070903143C
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Volkswagen Touran 1T 1.4 TSI CTHC 140HP Engine ECU 03C907309Q Automatic
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Volkswagen Sharan 7N Air Module ECU Sensor Control Unit 7N0959655C
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VW Volkswagen Tiguan 5N Bluetooth Interface Control Module ECU 3C8035730
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Part no. 2K0971557AG
Volkswagen VW Caddy Door Harness Loom Cable Wiring Front Left 2K0971557AG
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Volkswagen VW Touran Door Harness Loom Cable Wiring Front Left N/S 1T0971557AJ
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Part no. 7L6907160C
Volkswagen VW Touareg 7L Relay Unit Servotronic Module 9 Pins 7L6907160C
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Part no. 03C903023F
Volkswagen New Beetle 1.4 TSI Petrol Engine Alternator Motor 14V 110A 03C903023F
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Volkswagen Golf VI Passat B6 Tiguan Starter Motor Diesel Engine 02M911024Q
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Part no. 1K0953549CA
VW Golf 5 Steering Angle Steering Wheel Column Control Module 1K0953549CA
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Part no. 1K0959433AJ
Volkswagen Golf Mk5 V Body Control Comfort Unit Module 1K0959433AJ
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Part no. 028903028C
Volkswagen Golf Mk4 Alternator Generator BOSCH 14V 70A 028903028C
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Part no. 6R0937085B
Volkswagen Polo 6R BCM Body Comfort Control Module Unit ECU 6R0937085B
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VW Golf MK5 1.9 TDI BKC Engine Alternator Mount Support Bracket 03G903143A
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VW Golf MK6 Body Control Comfort Unit Module BCM 1K0937085
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Part no. 3C0953549A
VW Passat B6 Steering Wheel Steering Column Control Module 3C0953549A
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Part no. 5N0971228D
Volkswagen Tiguan 5N Battery Lead Positive Cable Plus Pole Wiring 5N0971228D
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VW Volkswagen Touareg 7L Radio Player Navigation Sat Nav Head Unit 7L6035191R
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Volkswagen Polo 6R Engine Starter Motor Assembly Unit 0AM911023F
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Volkswagen New Beetle Earth Ground Cable Negative Battery Lead Wiring 1C0971235A
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Volkswagen Polo 6R Audi A1 8X Alternator Generator 14V 110A 04E903015A
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Volkswagen Touareg 7L Front Impact Crash Sensor Right Left N/O/S 7L0909606C
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Volkswagen Transporter T5 Minus Negative Battery Cable Wiring Mass 7H0971793B
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Volkswagen VW Golf Mk7 Audi A1 8X Alternator Generator 14V 110A 04E903015
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VW Volkswagen LT 35 2.5 TDI AVR 109HP Engine ECU Kit 074906018BK Manual Gearbox
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Volkswagen Touareg 7L Power Supply Control Module Unit ECU 7L6937049AF
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VW Volkswagen Polo 4 9N Radio CD Player Stereo Audio Head Unit 6Q0035152D
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VW Volkswagen Touran 1T Golf Mk7 Fuel Pump Control Unit Module 1T0906093G
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Part no. 6R0971349AH
VW Polo MK5 1.2 TDI CFWA Alternator Wiring Starter Motor Harness 6R0971349AH
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Alternator Volkswagen LT35 2.5 TDI Diesel Engine Alternator 90A Bosch 074903025K
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Volkswagen Polo Mk5 Alternator Generator 140A Diesel Engine 04B903023D
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Audi Seat Skoda Volkswagen 1.4 TSI Petrol Alternator Generator 110A 03C903023G
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Volkswagen VW Golf Mk7 Front Radar Distance Control Unit Module 3QF907561D
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Volkswagen Golf Mk7 Audi A3 8V Engine Starter Motor Start Stop Denso 02E911024D
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Part no. 03L903023P-1
Volkswagen Crafter 2E 2.0 TDI Diesel Engine Alternator 03L903023P
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Part no. 070903024B
Volkswagen Touareg Transporter 2.5 TDI Alternator Generator 14V 180A 070903024B
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Part no. 1K0971121CN
VW Volkswagen Golf 1K 5D Front Door Wiring Loom Harness Left N/S 1K0971121CN
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Part no. 1J0035505A
Volkswagen Polo 6N Aerial Roof Antenna Base Antenna Unit 1J0035505A
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Part no. 06J903023G-1
VW Volkswagen Polo Gti 6R Golf Mk7 Alternator Generator 14V 140A 6J903023G
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Part no. 02Z911021C
Volkswagen Polo 6C Starter Motor Actuator 1.4 TDI Diesel Engine 02Z911021C
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Volkswagen Polo MK5 6R 1.2 TDI CFWA Engine Unit Module ECU 03P906021A
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Volkswagen VW Polo 9N Negative Battery Terminal Ground Cable Wiring 6Q0971235
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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 .