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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Audi A1 8X BCM Body Control Module Power Supply Unit 8X0907063AB
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Mercedes ML W164 Air Module System Control Unit A1648209585
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Mercedes Vito W447 Front Passenger Side Fuse Box Control Unit Module A4475407880
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Screen Vauxhall VIVARO A Dashboard Monitor Clock Screen 565412769
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Audi RSQ3 F3 Boot Trunk Subwoofer Rear Bass Speaker 83A035382A
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BMW F33 Automatic A/C Air Conditioning Module Control Unit ECU 9341325
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Audi S3 8P Audio Sound System Amplifier Bose 8P3035223
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Dashboard Sat Navigation Audi A3 S3 8V Unit System 8V0035020B
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BMW 5 7 Series E60 E65 Front Seat Transmission Bracket Arm 7068054
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Wiring BMW F12 F13 F06 Cable Set For Electric Parking Brake Handbrake 9242204
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Audi A4 B8 Blind Spot Radar Sensor Control Module Rear Right O/S 8T0907566B
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Audi A1 8X Seat Leon Mk3 Cupra 5F Alternator Generator Petrol Engine 06J903023BX
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BMW E81 E87 E90 120i 320i Engine N43 ECU Kit DME 7583225 + CAS3 Key Automatic
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BMW E92 M3 Xenon Footwell Light Control Module LCM PL2 FRM II 9166708
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BMW E60 E90 E91 LCI 330i 530i N53 218HP ECU Control Unit DME 7592080 Automatic
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Mercedes W176 A180 CDI OM607 Engine Unit Module ECU A6079002200 Automatic
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BMW F15 High Voltage Accumulator Cable Wiring Harness Positive 8618448
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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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BMW 7 Series E65 E66 PDC Parking Ultrasonic Sensor Rear Orientblau Blue 6944514
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Mercedes W213 Front Door Wiring Harness Keyless Driver's Side A2135409130
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Antenna Unit BMW F33 F83 M4 Left N/S Aerial Control Unit Module 9281064
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Mercedes W245 B200 CDI Blue Efficiency OM651.901 Engine Unit ECU A6519009402
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Audi A4 B9 Rear Door Control Module Unit ECU Left Right N/O/S 8W0959595G
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BMW 1 3 Series E87 E90 Petrol N52 Wiring Loom Harness Engine Gearbox Automatic
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Mini Cooper One R57 High PL3 SPEG DC/DC H5 Fuse Distribution Box 3456858
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Power Distributor BMW X3 G01 LCI X4 G02 LCI Rear Distribution Box B+ 5A693E4
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BMW F20 LCI 118i B38 136HP Engine ECU Kit DME 8486839 + FEM + Key Automatic
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Volkswagen Golf 8 1.5 eTSI Engine DFYA Voltage Converter Module 5WA959663A
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BMW X3 E83 2.5i Engine M54 192HP ECU Kit DME 7548769 EWS3 + Key Automatic
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Volkswagen VW Passat B6 Door Harness Loom Cable Wiring Rear Left N/S 3C4971693KJ
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Audi A6 C5 6 Disc CD Changer Control Unit Module Player With Magazine 4B0035111B
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Mercedes W906 313 CDI OM651.957 129HP Engine ECU Unit Module A6519002600 Manual
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Mercedes Citan W415 Renault Kangoo Body Control Module BCM Unit 284B13345R
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BMW E87 LCI E90 E91 N43 120i 320i 170HP Engine Unit ECU DME 7599881 Automatic
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BMW E87 E90 118d 318d M47N2 ECU Kit Engine Control Unit DDE 7808124 CAS2 Key
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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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Mercedes W177 W247 Battery Terminal Limiter Bracket Unit A2479067502
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Audi A4 B8 Dashboard Reader Navi MMI DVD CD Player Head Unit 8R2035678
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Mercedes R171 SLK 200 163HP M271.944 Kompressor Engine ECU A2711539779 Automatic
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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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Audi A3 8V Rear Blind Spot FAS Lane Assistance Control Unit 3Q0907566D
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Audi A4 B8 Blind Spot Radar Sensor Control Module Rear Left N/S 8T0907568B
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Mercedes W163 CL203 W203 Petrol Alternator Generator Valeo 120A A0111546402
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Ford Transit Mk7 V Negative Battery Terminal Cable Wiring F1FT10C679BA
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Volkswagen VW Passat B7 Module BCM Body Control Unit Module ECU 3AA937087Q
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BMW E65 Control Unit Power ECU Module 6921566 6943489 6935431 6957026
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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 .