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 JCW R56 N14 1.6 211HP ECU Kit DME CAS3 Key 7590857 Manual
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BMW F30 F36 G11 Telematics Module Bluetooth Telematik Control Unit ECU 6809300
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Mercedes W204 Front Fuse Box Relay Control Unit SAM Module A2129005622
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Head Unit BMW F20 F21 F32 F36 LCI Radio Media GPS Sat Navigation Unit 6809244
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Audi A3 8V Multimedia Radio Sat Nav CD Player Head Unit 8V0035874C
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Mini One R56 LCI R60 N16 Engine Control Unit ECU DME 7619335 CAS3 + Key Manual
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Mercedes W205 W238 Fuse Box Cover Control Unit Holder Bracket A2055400840
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Amplifier BMW F06 F13 Antenna Amplifier Diversity 868 MHZ 9346795
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BMW X3 Series E83 Boardmonitor Central Information Display Screen 6,5" 3415007
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BMW F10 Central Gateway Module ECU Control Unit LEAR ZGW-02 4SK 9291450
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Audi A3 8V Wireless Charger Centre Console Phone Charging Module Unit 81A035502
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BMW 1 X4 X5 Series F20 F21 F25 F26 Antenna Aerial Diversity Trap Circuit 9181463
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BMW F20 F21 F30 116d 316d Diesel N47N Engine Control Unit ECU DDE 8517874 Manual
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Audi A7 4G Seat Cable Front Left Right N/O/S Wiring Loom Harness 4G8971365
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Seat Module BMW E46 E64 Front Seat Control Unit Memory 7019255
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Audi A1 GB Seat Ibiza FR Alternator Generator 140A Petrol 1.0 TSI 05E903026Q
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BMW E63 Light Control Unit Module LCM LM II E6X LWR 9203081
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Audi Q7 4L Air Suspension Adjustment Module Control Unit 4L0907553E
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Mercedes W204 Display Screen Radio Multimedia Navigation Sat Unit A1729016600
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Audi A1 8X Air Module Control Sensor SRS System ECU Unit 8XA959655
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Mercedes W204 Battery Fuse Box Positive Distribution Terminal A2075401550
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BMW E87 LCI E90 120i 320i Petrol N43 170HP ECU KIT DME 7599881 CAS3 Key Manual
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Mercedes W212 OM651 Diesel Engine Wiring Harness Loom Cable A6511503633
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Headlight Ballast BMW E60 E61 E90 E91 Xenon Adaptive Control Module 6941634
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Mercedes CL203 CLC200 CDI 122HP M646.963 Engine ECU Kit A6461501934 Key Lock
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Mini F55 Petrol Engine ECU Control Module Unit 6821977
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BMW 3 Series E90 E91 E92 M3 Engine Alternator Generator Valeo 180A 7838656
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Citroen Relay Jumper 35L Alternator Bracket Belt Tensioner Holder 9807162780
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Mini F55 F56 Cooper SD B47 Diesel Engine ECU Kit DDE 8585225 BDC Key Manual
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Starter Motor Mercedes W639 W906 OM651 Engine Diesel Bosch A6519060000
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BMW F20 F30 116i 316i N13 136HP Engine Control Unit ECU DME 8603352 Automatic
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Mini Cooper R56 LCI R60 N16 122HP Engine Control Unit ECU DME 8600124 Manual
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Mercedes W204 W212 E220CDI OM651 Diesel Engine Control Module ECU A6519005301
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BMW F31 F34 328i N20 245HP Engine Control Unit Module ECU DME 8610635 Automatic
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BMW 3 Series E91 E91N LCI Antenna Amplifier Diversity Unit 868 MHZ 6934846
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Ford Transit Custom Relay 4-Pin Black 12V 40A FOMOCO Set Pair 5M5T14B192CA
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Mercedes SLK R171 Front Bumper Parking Sensor PDC Wiring Harness A1715403832
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Land Rover Discovery Sport L550 Front Windscreen Camera HK72-19H406-AC
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Audi A7 4G 3.0 TDI Alternator Generator 059903018TX
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Mini Cooper S R55 R56 N14 1.6 174HP ECU Kit DME 7586134 + CAS3 + Key Manual
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Skoda Yeti 5L Door ECU Module Control Unit Rear Left Right N/O/S 7N0959795E
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Mercedes Vito W639 Suspension Level Control Unit Module ECU A6394460317
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Audi Q3 F3 VW Tiguan Skoda Kodiaq Wire Positive Battery Cable Lead 5QA971228AK
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Mini F56 Active Sound Design Radio Audio Amplifer Control Unit Module 9366112
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Audi A4 B8 Body Control Comfort Unit Module BCM Unit ECU 8K0907064CC
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Mini Cooper F54 F55 F56 F60 Radio CD Player Media Head Unit Alpine 9344044
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Mercedes W221 Front Door Module Right O/S Control Unit ECU A2219007601
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Mercedes SLK R172 Roadster Folding Roof Module Vario Control Unit A1729006503
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MINI Cooper R50 R52 1.6i W10 116HP Engine ECU Control Unit DME 7539808 Manual
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Audi Q7 4L ECU Air Module Control Unit Crash Impact Sensor 4L0910655B
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BMW E70 E71 F01 F02 F10 F11 F30 F31 Diesel Starter Motor NAPA 8581098
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Ford Transit Fuse Box Cover Housing Lid Trim Cap 6C1T14A076C
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Airbag Module BMW F20 F21 F30 F31 F32 ECU ICM Plus Control Unit Air Bag 6886187
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VW Volkswagen Touareg 7L Air Module Control Unit ECU SRS 3D0909601E
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Radar Unit Mercedes W176 W205 W246 GLC C253 Front Bumper Sensor A0009058104
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BMW E90 E91 E92 335i 306HP Engine N54 ECU Kit DME 7575875 + CAS3 + Key Automatic
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BMW X3 F25 ICM Control Unit Air Module SRS ECU 6851284
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Audi A1 8X Air Module Control Sensor SRS System ECU Unit 8XA959655A
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Alternator Generator Mercedes W203 W204 M271 Engine Valeo 120A 14V A2711541402
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Mini Cooper One F54 F55 F56 F60 ECU Body Domain Controller BDC Module 9388179
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Audi S3 8P Interface Bluetooth Control Module Harman Becker ECU 8P0862335S
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BMW 7 Series 1 E65 E66 Battery Cable Positive Plus Pole 6904905
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Porsche Cayenne 955 9PA Transfer Box Control Unit Module ECU 0AD927755AA
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Audi A3 8P Multimedia Radio CD Player Head Unit 8P0035186G
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BMW E81 E82 E84 E87 E89 E90 E91 E92 Radio Business CD 9259730
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Engine Wiring BMW Z4 E85 E86 N52 Cable Loom Harness 7556886
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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 .