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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Mini Cooper S R56 JCW Coolant Thermostat Adapter Wiring Cable 8611289
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Air Module BMW F45 X1 F48 Mini F54 F55 F56 Air Module Control Unit ECU 6998485
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Audi TT 8J Volkswagen Golf Mk5 Gateway Control Unit Module ECU 1K0907530L
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Head Unit Mercedes R171 Radio Player Sat Nav Comand DVD APS A1718203389
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BMW E60 E90 320d 520d M47N2 Engine ECU Kit DDE 7803373 CAS3 Keys Automatic
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Adblue Module Mercedes W164 W212 W221 Control Unit ECU A6429009900
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Audi A3 8P Fusebox Body Control Comfort Module BCM Unit ECU 8P0907279F
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BMW X3 E83 LCI 2.0d N47 Engine ECU Module Kit DDE 7809196 + EWS + Key Automatic
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Mercedes W164 W251 Fuse Relay Module Rear Fuse Box Unit A1645402372
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Audio Amplifier BMW F20 F21 LCI Mini F55 F56 Top Hifi Harman Kardon Unit 9390018
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Fuse Box Mercedes CLK W203 W209 Front SAM Module Control Unit A2095451401
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Audi A4 B9 Power Distribution Fuse Box Battery 8W0941823F
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BMW Z4 Series E85 6-disc CD Changer Without Magazine 6946990
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BMW E60 X3 E83 E87 E90 Unit Glow Plug Module Diesel M47N2 7786821
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BMW E60 E87 E90 E91 E92 CAS 3 ECU Control Unit Key Reading Module 9226238
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BMW E90 E91 E92 CCC Navi DVD System Controller 6981569
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BMW E87 E90 E91 E92 Power Distribution Fuse Box Front 6906622
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BMW F20 F21 F30 F31 F32 Rear Body Control Unit Module REM 9279822
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Mercedes Vito W639 Fuse Box Relay Control Unit Electric Module SAM A6399005400
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Volkswagen VW Polo 6C 6R Parking Sensor Wiring Rear Bumper Loom Cable 6C0971065
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BMW F01 LCI F10 F30 Diesel N57N Engine Control Unit ECU DDE 8572439 Automatic
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Mercedes W205 MMI Multimedia CarPlay Android Retrofit Interface Kit GPBZ1901-5X
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BMW 5 6 Series E60 E61 LCI E63 E64 M5 M6 Earth Cable Starter Battery 7835548
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BMW 1 3 SERIES E87 E90 E91 Petrol N52 Wiring Loom Harness Engine Gearbox Manual
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Mercedes CL203 Head Unit CD Player Radio Audio Controller Unit A2039000000
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Phone Adapter Mercedes W203 W211 Contact Plate Holder Telephone A2038201311
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Parktronic Wiring Mercedes W177 Front Bumper Parking Assist Harness A1775402729
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Mercedes W221 S350 BlueTEC OM642.862 Engine ECU Kit A6421508900 Key Ignition
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Dashboard Monitor BMW X3 F25 X4 F26 Onboard Central Display Screen 9231320
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BMW i3 I01 Dashboard Central Information Display Screen Sat Nav 10,25" 6842991
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Mercedes CLK W209 Convertible Roof Top Control Unit Module ECU A2098204526
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Radio CD Player Mercedes W176 W246 Audio Navigation Stereo Head Unit A2469004716
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BMW E60 E61 E90 330d 530d M57N2 231HP Engine Control Unit ECU 7799856 Manual
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VW Volkswagen Touran 1T Airbag Side Impact Crash Sensor Air Bag 5M0909606A
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Audi A3 8P Central Gateway Control Unit Module Relay ECU 1K0907530K
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BMW F01 F02 F06 F07 GT F12 F13 CAS4 Control Unit Key Reading Module 9347913
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BMW X5 E70 LCI X6 E71 30dX N57 245HP ECU Kit DDE 8517015 CAS3 Key Automatic
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Mercedes CL C216 W221 S500 Air Pneumatic Suspension Control Module A2215407962
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BMW X5 F15 X6 F16 M Sport Fuse Box Body Control Module BCM ECU Unit 9383709
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Audi A6 C6 Display Screen Multimedia Navigation Dashboard Unit 4F0919603B
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Battery Cable Mercedes W176 W246 Negative Harness Lead Terminal A2469069600
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Ford Transit Mk7 Body Control Module Unit FS JCT PLN ECU CC1T-14A073-BF
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Switch Panel BMW F10 F11 F13 PDC Traction Operating Unit Centre Console 9202943
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Audi TT FV A3 8V Door Module Control Unit Front Right O/S Side ECU 5Q0959593D
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Active Suspension Module Bmw G20 F90 G01 G02 G05 G07 G29 6894896
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Ford Transit Connect Mk2 Fuse Box Relay Unit Module AV6T14A067AD
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BMW X1 E84 18SD sDrive Diesel N47N Engine Control ECU DDE Kit 8574351 Automatic
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BMW E60 530i Petrol M54 Engine ECU Control Unit Module DME 7533651 Automatic
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BMW E93 Xenon Footwell Light Module Control Unit ECU FRMFA 9133281
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Mini One F56 B38 102HP Petrol Engine ECU Control Unit Kit DDE 9494336 BDC Key
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VW Volkswagen Golf Mk7 Radio Control Head Unit CD Player 5G0919605
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Audi A3 8V Multimedia Radio Sat Nav CD Player Head Unit 8V0035874C
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Mercedes W207 W212 SAM Module Fuse Box Relay Control Unit A2129006924
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Front Camera Audi A4 B8 A5 8T Lane Assist Module Control Unit 8T0907217A
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Parktronic Module Mercedes W221 Parking Aid Sensors Control Unit A2215400901
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Mercedes Sprinter W906 Radio Stereo Sat Nav Display Screen Head Unit A9069000104
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Fuse Box Mercedes W204 W212 Diesel Front Sam Control Module Unit A2129009605
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BMW E92 330i N52N 272HP ECU Control Unit Kit DME 7567362 CAS3 + 2 Keys Automatic
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Audi A4 B8 PDC Assistance Parking Distance Control Module Unit ECU 8K0919475AA
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Positive Battery Cable BMW F30 F31 F80 M3 F82 M4 Plus Pole Power Red 9259425
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Mercedes W211 S211 Airbag System Control Unit Module ECU
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Audi A4 B8 Parking Brake Handbrake Module Control Unit 8K0907801D
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BMW X3 E83 2.0d Diesel M47N2 Engine Wiring Loom Harness 3417859
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Dashboard Monitor BMW X5 X6 E70 E71 Onboard Display Screen 8,8" 9224959
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BMW F30 F31 F32 F33 F34 Amplifier Sound Top Hifi Audio Harman Kardon 9277212
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Mercedes W204 Rear SAM Module Fuse Box Relay Control Unit A2049060205
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BMW X5 F15 Camera Kafas Front Windscreen Camera 9281717
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Audi Q3 8U Headlight Module LED Headlamp Control Unit 8U0998572A
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Mercedes W176 Fuse Box Allocation Fuse Placement Map Card Diagram A2465840971
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Mercedes W212 E300 Hybrid 651.924 204HP Engine ECU Kit A6519009102 Keys Lock
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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 .