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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PLN 42.95
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BMW E90 E91 LCI 320d ed N47N 163HP Engine ECU Kit DDE 8506566 CAS3 Key Manual
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Mercedes W176 Center Console Wiring Loom Electrical Harness A1765405905
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Alternator Generator Mercedes W415 OM607 Diesel Engine 150A 14V 231004554R
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BMW E60 530i M54 231HP Engine ECU Kit Unit DME 7533651 + CAS2 + Key Automatic
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Audi S3 8P Audio Sound BOSE Amplifier Stereo System Module 8P4035223D
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Key Reading Module BMW E87 E90 E91 ECU Control Unit CAS 3 9147212
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Volkswagen Touareg 7P PDC Parking Distance Control Module 7P6919475
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BMW E60 LCI E90 325d 525d M57N2 ECU Kit Basic Control Unit DDE 8506951 CAS3 Key
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Mercedes A238 Control Unit Module Amplifier Premium Sound A2139009020
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Alternator Generator BMW F30 F32 N57N Diesel Electrical Unit Denso 180A 8509225
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BMW E87 E90 118i 318i N46 129HP Engine Control Unit ECU Kit DME 7552176 CAS2 Key
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Mercedes W169 200CDI OM640.941 140 HP Engine Module ECU Kit A6401502579 Key Lock
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Audi A3 8P Convertible Roof Control Module ECU 8P7959255
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Audi Q7 4M Water Cooled Alternator Generator Starter Unit 48V 4N0903028M
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Skoda Octavia II BKD 2.0 TDI Starter Motor 02E911023L
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BMW E90 LCI Footwell Light Control Module LCM LED Basis 9249083
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Mercedes Sprinter W910 OM651.958 143HP Engine ECU Kit A6519003603 Automatic
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Mercedes W211 Rain And Light Sensor Control Unit Module ECU A2118206026
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Mercedes SLK R172 W212 Rear Fuse Box SAM Relay Control Unit Module A2129004830
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BMW X5 E70 Footwell ECU Light Control Unit Module FRM3R Basis Lear 9224616
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BMW E82 E90 135i 335i N54 Engine Gearbox Wiring Loom Harness Cables 7566525
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Nissan Qashqai 1.5 dCi Diesel Engine Wiring Loom Harness 24011BB04A
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Audi A3 8V Wireless Charger Centre Console Phone Charging Module Unit 81A035502
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Ford Transit Airbag Module Air Bag Control Unit ECU 6C1T14B056
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Audi S5 8T Body Comfort Control BCM Supply Module Unit ECU 8K0907063C
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Mercedes W203 W209 W221 Windscreen Rain Sensor Control Module A2218702826
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Audi A1 8X Bluetooth Interface CarPlay MMI Retrofit Multimedia Unit Set MMI2G
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Mini Cooper F56 136HP Petrol B38 Engine ECU Kit DME 8638785 + BDC + Key
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BMW F87 M2 N55 Engine Wiring Loom Harness Injection Valve Ignition 8073593
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Mercedes W169 W211 W245 Sound Audio Amplifier Unit Harman Becker A2118703794
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BMW E39 Alternator Generator 14V 50/90A 1432978
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AUDI Q7 4L Lane Assist Module Blind Spot 4L0907566A
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Engine Starter BMW F20 F21 F22 F30 F32 N47N Diesel Motor Apec 0986024980
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Mini Cooper One R50 R52 Alternator Generator 100A Petrol 7523897
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BMW E87 E90 N45 116i Engine Control Unit DME 12147550688 7550688
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BMW E81E88 E90 E92 Speed Sensor Yaw Rotary Rate Sensor Adaptive Steering 6784961
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Mercedes W204 Radio Player COMAND Navi CD Head Unit A2048700196
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Land Rover Discovery Sport L550 Positive Battery Wire Cable Loom HK7214A280AC
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Parktronic Mercedes Sprinter W901 W903 Front Bumper PDC Wiring Loom Harness
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Audi A4 B8 Body Control Comfort Unit Module BCM Unit ECU 8K0907064CC
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Volkswagen VW Caddy 2K Injector Wiring Harness Loom 038971803
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Starter Motor Land Rover Freelander 2 Diesel Engine Actuator LR003468
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Seat Leon Mk2 1P USB AUX Port Socket Connection Media Adapter 1P0035726A
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BMW F30 328i F32 428i N20 245HP Engine Unit ECU Kit DME 8639595 Automatic
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BMW E70 3.0d M57N2 235HP Engine ECU KIT DDE 7810950 CAS3 Key Automatic
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Antenna Amplifier BMW X4M F98 G02 Radio Signal FM2 DAB Amplifier Module 6840269
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BMW E81 E82 E87 LCI E88 N47S 123d ECU Kit DDE 7811702 + CAS3 + Key Manual
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Mercedes W205 W213 W222 Comunication Module Telematic Bluetooth A2229005415
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Volkswagen Golf Mk7 5G Impact Crash Air Module Sensor 5Q0959655C
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Radio Head Unit Mercedes C117 W176 W246 Navi CD Player Navigation A2469000112
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Mercedes W213 Air Con Conditioning Module A/C Climate Control Unit A2139000407
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Mercedes W213 Alternator Generator 200A 14V A0009063003
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BMW E81 E87 E90 LCI 120d 320d N47 ECU Kit DDE 8506374 CAS3 + Key Automatic
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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 .