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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Volkswagen Transporter T5 T30 Fuse And Relay Box Wiring Cable 7H0937617
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VW Volkswagen Crafter 2.0 TDI CKTB 109HP Engine ECU Kit 03L907309 Manual Gearbox
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VW Volkswagen Sharan 7N Gateway Control Unit Module ECU 7N0907530S
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Volkswagen Touran 1T Parking Control Unit Module Sensor 1K0919283A
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VW Golf Mk8 Antenna Amplifier Rear Booster Boot Lid Tailgate Left N/S 5H6035577B
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VW EOS 2.0 TDI CBAB 140HP Diesel Engine Control ECU Bosch 03L906022PM Manual
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Volkswagen Polo 6R 1.4 TDI CR 75HP CUSA Engine ECU Kit 04B907445 Key BCM Manual
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Volkswagen Touareg 7L Control Comfort Unit Module Unit ECU 7L6959933
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Volkswagen Golf CD1 Park Parking Assist PDC Distance Control Module 5R3919294
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Volkswagen Scirocco Mk3 Fuse Box Module Comfort BCM Control Unit ECU 5K0937084F
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Volkswagen VW Golf V 1.9 TDI Diesel Engine Starter Motor 02Z911023H
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Volkswagen Transporter T5 T30 Fuse And Relay Box 7H0937617
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Volkswagen Polo 5 6R 1.2 TSI CJZC 90HP ECU Engine Control 04E907309AF
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Volkswagen Touran 1T Front Centre Dashboard Tweeter Speaker 1T0035411P
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Volkswagen Polo AW GTI 2.0 TSI 207HP DNND Engine ECU Unit 06Q907309B Automatic
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VW Volkswagen Golf Mk8 Online Services Module Control Unit ECU 5WA035284F
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Volkswagen Touareg 3.0 TDI BKS 225HP Engine Control ECU 7L0907401F Automatic
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VW Golf Mk5 Engine Wiring Loom Cable Harness Injector Module Diesel 03G971826A
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Volkswagen Touran 1T Body Gateway Module ECU Control Unit 7N0907530D
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VW Volkswagen Golf Mk7 1.6 TDI CLHA Diesel Engine Starter Motor 02Z911024L
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Volkswagen Golf CD1 Camera Lane Assist Control ECU Module Unit 5WA980653D
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VW Volkswagen Golf Mk7 Multimedia MMI Sat Nav Radio Display Screen 3G0919605D
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Volkswagen Polo 6R 1.2 MPI CGPB 60HP Engine Control ECU 03E906023AL Manual
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VW Volkswagen Caddy Maxi 2K BCM Body Control Module Unit 5K0937085R
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Volkswagen Polo 6R Fuse Box Module Comfort BCM Body Control Unit ECU 6R0937087P
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VW Volkswagen Polo 6R Battery Fuse Distribution Terminal Unit 6R0937550A
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Volkswagen Touareg 7L Control Comfort Unit Module Unit ECU 7L6959933A
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Volkswagen New Beetle Yaw Sensor Rate Acceletarion Control Module 1J2907637G
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Starter Motor VW Golf GTI Audi Seat Skoda Petrol CJX CHHA Bosch 1.1KW 02E911024B
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VW Volkswagen Eos Golf 6 Steering Wheel Column Control Module 1K0953549CP
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Volkswagen Golf Mk5 1K GTI 2.0 TFSI BWA 200HP Engine Unit ECU 1K0907115J Manual
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VW Volkswagen Crafter 2.0 TDI CKTB Engine Unit Module ECU Manual 03L906012A
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Volkswagen Polo Mk5 6R Radio Multimedia Display Navigation Unit 6C0919603B
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Volkswagen Golf Mk7 PDC Parking Distance Control Module Unit ECU 5Q0919294E
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Volkswagen Touareg Yaw ESP Rate Sensor Module Unit Control ECU 7H0907652
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Volkswagen Golf Mk7 5G Headlight Ballast Module Left Right N/O/S 7P5941591AJ
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VW Volkswagen Golf SV Online Services Module Control Unit ECU 5NA035284C
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VW Amarok Mk2 Automatic Gearbox Transmission Control Module Unit MP3P-14F106-AA
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Control Unit VW Volkswagen Polo 6C 6R Air Module Unit ECU SRS Bosch 6C0959655
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Volkswagen Golf Mk7 Gateway Control Unit Module 5Q0907530L
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VW Volkswagen Transporter T5 Comfort Convenience Body Module BCM 7H0937049T
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Volkswagen Polo Mk5 V 6R Body Control Module BCM Unit 6R0937085A
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Volkswagen Golf 1K Door Wiring Harness Loom Cable Front Drivers Side 1K0971120CH
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Volkswagen Golf 8 1.5 eTSI Engine DFYA Voltage Converter Module 5WA959663A
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Volkswagen VW Passat B6 Door Harness Loom Cable Wiring Rear Left N/S 3C4971693KJ
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Volkswagen VW Passat B7 Module BCM Body Control Unit Module ECU 3AA937087Q
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Volkswagen Golf 5 1.9 TDI 105HP BKC Engine Control Unit ECU Manual 03G906016B
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Volkswagen Golf Mk5 Fuel Pump Control Relay Module Unit ECU 12V 1K0906093D
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VW Golf MK6 Body Control Comfort Unit Module BCM 1K0937085
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Volkswagen Touareg 7L Display Screen Multimedia Navigation Unit 7L6035177E
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Part no. 09D927750BN
VW Volkswagen Touareg 7L Automatic Transmission Module Control Unit 09D927750BN
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Part no. 7N0907530AS
VW Volkswagen Passat B7 Gateway Control Module Unit ECU 7N0907530AS
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Volkswagen VW Golf VI Engine Starter Motor 1.6TDI 2.0 TDI Diesel 02Z911023N
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VW Volkswagen Sharan Front Door Left Right N/O/S Speaker Loudspeaker 7N0035454A
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VW Volkswagen Golf CD1 Front Door Left N/S Loom Wiring Cable Harness 5H4971161LQ
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VW Volkswagen Golf 5 Rain Sensor Front Windscreen Control Unit Module 1K0955559K
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Volkswagen Golf CD1 Front Door Right O/S Loom Wiring Cable Harness 5H4971162MP
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Volkswagen Touran 1T Air Module Control Unit ECU Module 1T0909605E
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Volkswagen Golf Sportsvan 1.5 TSI DADA 150HP Engine ECU 05E907309 Automatic
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Volkswagen Golf Mk8 A-Pillar Speaker Tweeter Sound Left Right N/O/S 5H0035411
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VW Volkswagen New Beetle 1.6 BFS Petrol Starter Generator Motor 02A911023L
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Volkswagen Transporter T6.1 Engine Bay Cover Main Fuse Box 7H0907300
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VW Volkswagen Touareg 7L Transfer Case Box Control Unit Module ECU 0AD927755AR
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Volkswagen VW Crafter Front Distance Radar Sensor 2Q907561C
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VW Polo 6R V GTI 1.4 TSI CAVE 180HP Engine Control ECU Kit 03C906027AR Automatic
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Volkswagen Touran 1T Safety SRS Air Control Module Unit 1T0909605C
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VW Volkswagen Polo 6N Air Safety Bag Control Unit Module 1J0909603
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Volkswagen Tiguan 5N Module BCM Body Control Unit Module ECU 3C0937049E
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Volkswagen VW Golf VI Passat B6 Tiguan Starter Motor Diesel Engine 02M911024A
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VW Volkswagen Polo 6R BCM Body Comfort Control Module Unit ECU 6R0937085C
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VW TOURAN 1T Steering Angle Steering Wheel Column Control Module ECU 1K0953549AF
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Volkswagen Golf Mk7 Gateway Control Unit Module 5Q0907530AA
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VW Polo 6N Immobilizer Control Unit Module ECU 6H0953257B
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Volkswagen Caddy Maxi 2K Front Door Panel Cable Harness Driver's Side 2K5971120B
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Volkswagen Golf Mk5 1K V 2.0 TFSI BWA 200HP Engine Unit ECU 1K0907115J Automatic
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VW Volkswagen Tiguan 5N Automatic Gearbox Module Control Unit ECU 09G927750FD
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VW Volkswagen Touran Body Control Comfort Unit Module BCM 3C8937049D
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Volkswagen Tiguan 5N Air Module Crash Control Module Unit ECU 5N0959655A
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Volkswagen Polo 6R 3D Front Right O/S Door Wiring Harness Cable Loom 6R2971121GS
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Audi Volkswagen Seat Relay Unit Module 6 Pins 12V 191955531
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Volkswagen GOLF CD1 Multimedia Display Screen Radio Sat Nav Head Unit 5H0919605B
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Volkswagen Polo 6R 3D Front Left N/S Door Wiring Harness Cable Loom 6R2971121GS
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Volkswagen Transporter T5 Engine Bay Cover For Main Fuse Box 7H0907300
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VW Volkswagen Polo 6R Passenger's Side Door Wiring Harness Loom 6R2971121JD
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Volkswagen Passat B7 Starter Motor Actuator TDI Diesel Engine 02Z911024H
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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 .