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. 5C0959655B
Volkswagen Golf Mk6 VI Air Module Control Unit ECU 5C0959655B
€23.95
Free delivery - Tue, Nov 04
If paid before 14:00

Part no. 5N0971228
VW Volkswagen Tiguan 5N Positive Battery Terminal Cable Lead Wiring 5N0971228
€23.95
Free delivery - Tue, Nov 04
If paid before 14:00

Part no. 2Q0971537AN
Volkswagen Polo Mk6 AW Battery Negative Cable Wiring Earth Line 2Q0971537AN
€23.95
Free delivery - Tue, Nov 04
If paid before 14:00

Part no. 1K8971104S
Volkswagen Scirocco Mk3 Rear Number Plate Wiring Harness Cable Loom 1K8971104S
€23.95
Free delivery - Tue, Nov 04
If paid before 14:00

Part no. 1T0909606
VW Volkswagen Touran 1T Air Module Control Unit Crash Impact Sensor 1T0909606
€23.95
Free delivery - Tue, Nov 04
If paid before 14:00

Part no. 3C0937125A
Volkswagen Tiguan 5N Engine Bay Fuse Relay Box Terminal 3C0937125A
€23.95
Free delivery - Tue, Nov 04
If paid before 14:00

Part no. 5Q0951605B
Audi Seat Skoda Volkswagen Golf Mk8 Anti Theft Alarm Siren 5Q0951605B
€23.95
Free delivery - Tue, Nov 04
If paid before 14:00

Part no. 02M911024C
Volkswagen Tiguan 5N Engine Starter Motor 02M911024C
€23.95
Free delivery - Tue, Nov 04
If paid before 14:00

Part no. 5H0971104P
Volkswagen Golf Mk8 CD1 Parking Sensor Wiring Rear Bumper Loom Cable 5H0971104P
€32.95
Free delivery - Tue, Nov 04
If paid before 14:00

Part no. 03E971612AE
Volkswagen Polo 6R Mk5 Engine Wiring Loom Harness Cable 03E971612AE
€123.95
Free delivery - Tue, Nov 04
If paid before 14:00

Part no. 3C0937125A-1
VW Volkswagen Tiguan 5N Passat B7 Engine Bay Fuse Relay Box Terminal 3C0937125A
€23.95
Free delivery - Tue, Nov 04
If paid before 14:00

Part no. 1J6035111
VW Volkswagen Touareg 7L Golf 4 CD Changer 1J6035111
€32.95
Free delivery - Tue, Nov 04
If paid before 14:00

Part no. 1K0971228L
VW Golf MK5 6 Audi A3 8P Positive Battery Terminal Cable 1K0971228L
€23.95
Free delivery - Tue, Nov 04
If paid before 14:00

Part no. 0AM911022C
Volkswagen Golf Mk8 Engine Starter Motor Assembly Unit 0AM911022C
€28.95
Free delivery - Tue, Nov 04
If paid before 14:00

Part no. 1K0937132F
Vw Golf 5 Audi A3 8P Seat Leon 1P1 Fuse Box Cover Trim Panel Housing 1K0937132F
€23.95
Free delivery - Tue, Nov 04
If paid before 14:00

Part no. 8Y0963554B
Volkswagen Golf 8 Rear Seat Couch Occupancy Sensor Unit 8Y0963554B
€23.95
Free delivery - Tue, Nov 04
If paid before 14:00

Part no. 7M0951253C
Volkswagen T5 Audi Seat Skoda Relay Black Control Unit 5 Pin 12V 7M0951253C
€23.95
Free delivery - Tue, Nov 04
If paid before 14:00

Part no. 7N0959793J
VW Volkswagen Sharan 7N Driver's Side Door ECU Module Control Unit 7N0959793F
€42.95
Free delivery - Tue, Nov 04
If paid before 14:00

Part no. 02M911023G
VW Volkswagen Golf 1K 2.0 TFSI BWA Starter Motor 02M911023G
Product currently unavailable

Part no. 5M0035724
Volkswagen VW Golf Mk6 1K Aux Socket Port Switch 5M0035724
€23.95
Free delivery - Tue, Nov 04
If paid before 14:00

Part no. 1K0951253-1
VW Volkswagen Audi Seat Relay 449 12V 30A Unit Module 4 Pins 1K0951253
€23.95
Free delivery - Tue, Nov 04
If paid before 14:00

Part no. 1K0951605C
VW Volkswagen Golf Audi Seat Alarm System Siren Anti-Theft Signal 1K0951605C
€23.95
Free delivery - Tue, Nov 04
If paid before 14:00

Part no. 1K0909605AE
VW Volkswagen Scirocco Mk3 Air Module Control Unit ECU 1K0909605AE
€23.95
Free delivery - Tue, Nov 04
If paid before 14:00

Part no. 4H0951253A-2
Seat Skoda Audi VW Polo 6R Multi Use Control Relay 4 Pin 645 4H0951253A SET X3
€23.95
Free delivery - Tue, Nov 04
If paid before 14:00

Part no. 03G906021MP
VW Volkswagen Touran TDI Diesel Engine Control Unit ECU 03G906021MP
Product currently unavailable

Part no. 7L0919283F
Volkswagen Touareg PDC Parking Sensor Control Unit Module 7L0919283F
Product currently unavailable

Part no. 045903023A-1
VW Polo 4 9N 1.4 TDI Seat Skoda Diesel Engine Alternator Generator 045903023A
Product currently unavailable

Part no. 02M911024A
Volkswagen VW Golf VI Passat B6 Tiguan Starter Motor Diesel Engine 02M911024A
Product currently unavailable

Part no. 7L0959933H
VW Touareg 7L Body Control Comfort Unit Module STG Convenience ECU 7L0959933H
Product currently unavailable

Part no. 04L907309B-2
Volkswagen Golf 7 1.6 TDI CLHA 105HP Engine ECU Kit 04L907309B Key + Ignition
Product currently unavailable

Part no. 069911023MX
Volkswagen LT 2.5 Touareg 3.0 TDI Diesel Engine Starter Motor 069911023MX
Product currently unavailable

Part no. 3D0941329
Volkswagen VW Golf Mk7 Headlight Cornering Module Control Unit 3D0941329
Product currently unavailable

Part no. 02A911023L
VW Volkswagen New Beetle 1.6 BFS Petrol Starter Generator Motor 02A911023L
Product currently unavailable

Part no. 02M911024
Starter Motor Volkswagen VW Golf VI Passat B6 Tiguan Diesel Engine 02M911024
Product currently unavailable

Part no. 06J903023H
Volkswagen Golf Mk7 5G Alternator Generator 2.0 TFSI CHHA 06J903023H
Product currently unavailable

Part no. 7L6971095G
VW Volkswagen Touareg 7L Front Bumper PDC Parking Sensor Wire Harness 7L6971095G
Product currently unavailable

Part no. 2H0959655B
VW Volkswagen Caddy Maxi Interior SRS Air Module Unit Control Sensor 2H0959655B
Product currently unavailable

Part no. 06F903023L
Alternator Volkswagen Transporter T5 2.0 TDI Diesel Engine 110A Bosch 06F903023L
Product currently unavailable

Part no. 1C0909605P
Volkswagen Fox 5Z Air Module Control Unit ECU Module 1C0909605K
Product currently unavailable

Part no. 0001123044
Volkswagen VW Golf VI Passat B6 2.0 TDI Diesel Engine Starter Motor 0001123044
Product currently unavailable

Part no. 06A906033DP-1
Volkswagen New Beetle 1.6 BFS 102HP Engine ECU Kit 06A906033DP Ignition + 2 Keys
Product currently unavailable

Part no. 1J0919506K
VW Volkswagen New Beetle Fan Control Module Relay 1J0919506K
Product currently unavailable

Part no. 038906016AJ
VW Volkswagen Transporter T5 1.9 TDI Diesel Engine Control Unit ECU 038906016AJ
Product currently unavailable

Part no. 5Q0959655AA
VW Volkswagen Golf Mk7 Front Impact Crash Air Module Sensor 5Q0959655AA
Product currently unavailable

Part no. 03D903025J
Seat Ibiza Skoda Fabia Volkswagen Polo Mk5 6R 1.2 Petrol Alternator 03D903025J
Product currently unavailable

Part no. 1K0035186AF
Radio CD Player VW Volkswagen Golf 5 Passat B6 Head Unit MP3 RCD 300 1K0035186AF
Product currently unavailable

Part no. 1K0937124K
Volkswagen VW Golf 1K Mk5 Fuse Box Engine Compartment Relay Unit 1K0937124K
Product currently unavailable

Part no. 0AM911023J
Volkswagen Golf Mk7 VII Engine Starter Motor Assembly Unit 0AM911023J
Product currently unavailable

Part no. 02E911024CX
Volkswagen Sharan 7N Engine Starter Motor Lucas 02E911024CX
Product currently unavailable

Part no. 03E971612AN
Volkswagen Polo Mk5 6R 1.2 CGPB Engine Wiring Harness Cable 03E971612AN
Product currently unavailable

Part no. 3G0919605D
VW Volkswagen Golf Mk7 Multimedia MMI Sat Nav Radio Display Screen 3G0919605D
Product currently unavailable

Part no. 1K0035186R
Radio CD Player VW Volkswagen Golf 5 Passat B6 Head Unit 1K0035186R
Product currently unavailable

Part no. 03L906018HJ-1
VW Volkswagen Sharan 7N 2.0 TDI 140HP CFFB Engine ECU Kit 03L906018HJ Key Lock
Product currently unavailable

Part no. 022911023H
Volkswagen VW Golf V 1.9 TDI Diesel Engine Starter Motor Unit 022911023H
Product currently unavailable

Part no. 3C0953549J
VW Passat B6 Steering Wheel Steering Column Control Module 3C0953549J
Product currently unavailable

Part no. 077911023-1
Volkswagen Touareg 7L Engine Starter Motor 077911023
Product currently unavailable

Part no. 1T0880201T
Volkswagen Tiguan 5N Air Module Control Unit Module 1T0880201T
Product currently unavailable

Part no. 1T0909605E
Volkswagen Touran 1T Air Module Control Unit ECU Module 1T0909605E
Product currently unavailable

Part no. 5K0937084J
Volkswagen Sharan 7N Fuse Box Module Comfort BCM Control Unit ECU 5K0937084J
Product currently unavailable

Part no. 02Z911023H
Volkswagen VW Golf V 1.9 TDI Diesel Engine Starter Motor 02Z911023H
Product currently unavailable

Part no. 02E911024B
Starter Motor VW Golf GTI Audi Seat Skoda Petrol CJX CHHA Bosch 1.1KW 02E911024B
Product currently unavailable

Part no. 6C0971349MD
Battery Cable VW Polo 6R Audi A1 8X Starter Alternator Wiring 6C0971349MD
Product currently unavailable

Part no. 2H0911023F
Volkswagen Crafter 30-35 2E Amarok 2.0 TDI Engine Starter Motor 2H0911023F
Product currently unavailable

Part no. 02M911023A
Starter Motor Volkswagen VW Golf IV Bora Sharan Diesel Engine 02M911023A
Product currently unavailable

Part no. 2D0953257
VW Volkswagen LT 35 Immobilizer Control Unit Module Temic 2D0953257
Product currently unavailable

Part no. 06K907425B-1
Volkswagen Golf Mk7 GTI 2.0 TFSI CHHA 230HP Engine Control Unit ECU 04L907309B
Product currently unavailable

Part no. 7N0959792J
VW Volkswagen Sharan 7N Passenger's Side Door ECU Module Control Unit 7N0959792F
Product currently unavailable

Part no. 1K0959433AK
VW Golf Mk5 1K Body Control Comfort Unit Module Convenience Unit 1K0959433AK
Product currently unavailable

Part no. 5NA980611A
Volkswagen Golf 8 CD1 Wireless Phone Charging Center Console Module 5NA980611A
Product currently unavailable

Part no. 5R3919294
Volkswagen Golf CD1 Park Parking Assist PDC Distance Control Module 5R3919294
Product currently unavailable

Part no. 3Q0035874A
Volkswagen VW Golf Mk7 Infotainment Radio Multimedia Head Unit 3Q0035874A
Product currently unavailable

Part no. 03E906033
VW Polo Petrol Engine Control ECU Manual Siemens 5WP1630440 03E906033
Product currently unavailable

Part no. 03G971826A
VW Golf Mk5 Engine Wiring Loom Cable Harness Injector Module Diesel 03G971826A
Product currently unavailable

Part no. 6Q0909606G
VW Volkswagen New Beetle Cabrio Side Impact Crash Air Module Sensor 6Q0909606G
Product currently unavailable

Part no. 5N0035342F
VW Volskwagen Polo 6R Multimedia Electronic Control Interface Module 5N0035342F
Product currently unavailable

Part no. 03L903024F
Alternator Volkswagen VW Sharan 2.0 TDI Engine Alternator 180A Bosch 03L903024F
Product currently unavailable

Part no. 7L6035177E
Volkswagen Touareg 7L Display Screen Multimedia Navigation Unit 7L6035177E
Product currently unavailable

Part no. 02Z911023N
Volkswagen VW Golf VI Engine Starter Motor 1.6TDI 2.0 TDI Diesel 02Z911023N
Product currently unavailable

Part no. 5Q0937084S
Volkswagen Golf Mk7 BCM Body Control Module Unit ECU 5Q0937084S
Product currently unavailable

Part no. 7E0971794A
Volkswagen Transporter T5 2.0 TDi CAAA Positive Battery Cable Wire 7E0971794A
Product currently unavailable

Part no. 2K5971557
Volkswagen Caddy Maxi Front Door Right O/S Electrical Wiring Harness 2K5971557
Product currently unavailable

Part no. 3C0035270
VW Volkswagen Golf 6 Polo Radio Head Unit RNS 310 Media Player Unit 3C0035270
Product currently unavailable

Part no. 1K0907115F
Volkswagen Golf Mk5 1K GTI 2.0 TFSI BWA 200HP Engine ECU 1K0907115F Manual
Product currently unavailable

Part no. 1T0971120AC
Volkswagen VW Touran Door Harness Loom Cable Wiring Front Passenger 1T0971120AC
Product currently unavailable

Part no. 5Q0937125B
Volkswagen Golf Sportsvan Fuse Box Engine Compartment Relay Unit 5Q0937125B
Product currently unavailable

Part no. 03L903023F-1
Volkswagen Golf Mk6 Alternator Generator Electrical Unit Valeo 03L903023F
Product currently unavailable

Part no. 1K0035507F
VW Golf V 5 1K Roof Top Antenne Control Unit Module 1K0035507F
Product currently unavailable

Part no. 02Z911024L
VW Volkswagen Golf Mk7 1.6 TDI CLHA Diesel Engine Starter Motor 02Z911024L
Product currently unavailable

Part no. 1T0971121AC
Volkswagen VW Touran Door Harness Loom Cable Wiring Front Driver 1T0971121AC
Product currently unavailable

Part no. 1C0880201M
Volkswagen New Beetle Steering Wheel Air Module Driver's Side Black 1C0880201M
Product currently unavailable

Part no. 3D0941329E
Volkswagen Golf Mk7 Headlight Cornering Module Control Unit 3D0941329E
Product currently unavailable

Part no. 1K0971228M
Battery Cable Volkswagen VW Golf Mk5 Positive Plus Pole Lead 1K0971228M
Product currently unavailable

Part no. 038903143AF
Audi VW Golf MK5 Seat Skoda 1.9 TDI Alternator Mount Support Bracket 038903143AF
Product currently unavailable

Part no. 5Q0907530L
Volkswagen Golf Mk7 Gateway Control Unit Module 5Q0907530L
Product currently unavailable

Part no. 1T0971693BM
Volkswagen VW Touran Door Harness Loom Cable Wiring Rear Left Right 1T0971693BM
Product currently unavailable

Part no. 5WA035284F
VW Volkswagen Golf Mk8 Online Services Module Control Unit ECU 5WA035284F
Product currently unavailable

Part no. 5K0837202AD
Volkswagen VW Caddy Radio Remote Control Alarm Key Fob Control Unit Module
Product currently unavailable

Part no. 5G6919605B
VW Volkswagen Golf Sportsvan Multimedia Sat Nav Radio Display Screen 5G6919605B
Product currently unavailable

Part no. 02Z911024H
Volkswagen Passat B7 Starter Motor Actuator TDI Diesel Engine 02Z911024H
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 .