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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Yaw Sensor Mercedes W210 W220 ESP Rotation Rate Control Unit Module A0015429018
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Mercedes W164 Fuse Box Relay Housing Cover A1645400624
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BMW X3 F25 Footwell Light Module Control Unit ECU FRM3 9383700
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Antenna Unit BMW F33 F83 M4 Left N/S Aerial Control Unit Module 9281064
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Audi A5 8T Seat Cable Front Left Right N/O/S Wiring Loom Harness 8T0971365Q
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BMW X5 E70 X6 E71 Front Seat Control Unit Module Memory ECU 9264975
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Starter Motor Volkswagen VW Golf VI Passat B6 Tiguan Diesel Engine 02M911024
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Audi Q7 4L Navigation Sat Stereo Radio Audio Head Unit CD Player 4E0910888PX
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Door Module BMW E39 Passenger Door Control Module Hella 8378766 6904242
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Mercedes W163 CL203 W203 Petrol Alternator Generator Valeo 120A A0111546402
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BMW G11 G30 KaFAS Camera Lane Assist Control ECU Module Unit 9871841
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BMW E82 E90 E91 E92 N54 135i 335i Alternator Generator 180A 7558220
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Electronic Box BMW X3 E83 LCI 2.5si 3.0si N52N Control Unit Mount Holder 3417586
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Seat Ateca Audi Q3 Mk2 TT 8S Fuse Relay Box Engine Bay Supply Unit 5Q0937125G
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Audi A6 A8 D4 Q7 4M CAN Bus Jumper Contact Bridge Connector Plug 4E0941817B
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Volkswagen Sharan 7N Engine Starter Motor Lucas 02E911024CX
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Peugeot 207 1.6HDI Diesel Engine Control Unit ECU Module 9663786380
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Ford Transit Connect Starter Motor Engine Actuator Diesel 1.8 2T14-11000-BA
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VW Volkswagen Golf SV Online Services Module Control Unit ECU 5NA035284B
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Mercedes W221 Remote Trunk Closing Hydraulic Pump Motor Unit A2218001548
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Steering Wheel Module BMW F20 F21 F30 F31 F32 Heating Control Unit 7849393
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BMW E81 E90 LCI Business System Car Infotaiment Computer CIC 9239323
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BMW F40 F45 F48 Mini F54 F55 F57 F60 Input Cylinder Clutch Control 6865168
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BMW E87 E90 E91 118d 318d M47N2 122HP Engine ECU KIT DDE 7798179 CAS2 + Keys
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VW Polo Mk6 Seat Ibiza Mk5 KJ1 Battery Negative Cable Earth Wiring 2Q0971537AB
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VW Volkswagen Touareg 7P MK2 Gateway Control Unit Module ECU 7P6907530C
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Alternator BMW X3 E53 X5 E83 M57N2 Generator Diesel Power 150A 7797661
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PDC Wiring Mercedes R172 Parktronic Parking Sensor Cable Rear A1725407805
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Engine Wiring BMW X3 G01 X4 G02 B57 Diesel Module 2 Loom Harness 8588681
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Mercedes C140 Battery Box Boot Storage Cover A1406934633
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Audi A5 8T Wiper Switch Stalk Steering Column Wheel 8K0953502C
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BMW E81 E87 E90 E91 Towing Tow Bar Trailer Hook Module Control Unit 1E0413
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Alternator Generator BMW F10 F11 F20 F21 F30 F31 N55 Denso 14V 210A 7616119
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BMW E39 Alarm Sensor Comfort Control Module Unit ECU 55892110
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Volkswagen Polo Mk6 PDC Sensor Wiring Loom Harness Cable Rear Bumper 2G0971104C
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Seat Leon 5F Rear Bumper Wiring Loom PDC Harness Parking Sensor 5F4971194A
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Audi A4 Door Harness Loom Cable Wiring Front Left Right N/O/S 8E1971035DF
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VW Volkswagen Sharan 7N 2.0 TDI 140HP CFFB Engine ECU Kit 03L906018HJ Key Lock
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Audi A3 8V 1.6 TDI Fuel Pump Sender Control Relay Module Unit ECU 5Q0906121G
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Mercedes ML W164 Diesel OM629 Wiring Alternator Starter Harness A1644406532
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Comfort Module Audi A6 S6 RS6 C6 4F Convienience Unit ECU 4F0910289N
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Audi A3 S3 8V Door Control Unit Module Front Right O/S Door Unit 5Q0959393E
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Mercedes W213 C238 Air Suspension Level Control Unit Module Airmatic A2139005427
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Air Module Mercedes W213 C238 Control Unit Module ECU A2139008822
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Fuse Box Citroen Berlingo Peugeot Partner BSM Control Unit Module 9675878480
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VW Golf Mk5 Gateway Module Diagnostic Interface Control Unit ECU 1K0907530E
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VW Volkswagen Golf 6 1.6 TDI Diesel Engine Starter Motor 022911024A
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Renault Master III Radio CD Player Bluetooth Head Unit USB MP3 281156951R
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Ford Galaxy Mk3 Door Module Front Left N/S Control Unit ECU 6G9T-14B533-GL
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Earth Ground Cable BMW E60 E61 E63 N62N 540i 550i 650i Battery Starter Wiring
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Audi Q5 FY Alternator Generator Valeo 2.0 TFSI 06L903027
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Mercedes C292 GLE 350d 4-Matic OM642.826 Engine Control Unit ECU A6429004701
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Volkswagen Phaeton 3D Air Suspension Control Module Unit ECU 3D0907553B
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Volkswagen Golf Mk5 1K Module BCM Body Control Unit Module ECU 3C0937049AE
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Airbag Module Citroen Berlingo Peugeot Partner Control Unit Sensor 9674290780
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Audi A4 B7 Door Wiring Harness Loom Front Cabling 8E1971029AA
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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 .