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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Mercedes W204 Rear Left Door N/S Control Unit Module A2048207785
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BMW X5 Series E53 Light Check Module Control Unit ECU Lear LCM III 6914655
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Mercedes ML W164 Front Left Control Unit Module Door A1648203785
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Radio Head Unit Mercedes C207 W207 COMAND Navi CD Player Navigation A2129009004
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Audi Q3 8U Sat Navi Stereo Radio Audio Head Unit CD Player 8U1035192A
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BMW X5 Series E53 Electrical Power Distribution Fuse Box 8378107
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Mercedes W169 W245 Petrol Engine Starter Motor A0061510301
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BMW E60 LCI E90 E91 325d 525d Engine M57N2 197HP ECU Kit DDE 7806987 CAS3 + Key
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Audi A3 8Y Rear Door Control Module Unit ECU Driver's Side Right O/S 5Q0959595L
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Navigation Head Unit BMW F20 F21 F30 F31 LCI F32 Radio CD Player High 2 9867503
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BMW E90 M-Audio Controller System Control Unit Module Navigation 9186215
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BMW F07 GT F10 F11 535d F13 640d LCI N57Z 313HP Engine ECU DDE 8586536 Automatic
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Audi S3 8P Body Control Comfort Unit Module BCM Convenience Unit 8P0959433C
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Mercedes-Benz A-Class W168 Control Box Unit Cover Front A1685400082
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BMW E90 Xenon Footwell Light Module Control Unit ECU PL2 FRMFA 9128184
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BMW F20 F21 F30 F31 LCI F32 F33 F34 Alternator Petrol Engine Unit 180A 8645325
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Mini Cooper SD R60 ALL4 N47N 143HP Engine ECU Kit DDE 8519663 Manual CAS3 + Key
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Audi A6 C6 Battery Positive Plus Pole Terminal Lead Overload 4F0915459
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Volkswagen VW Passat B7 Driver's Seat Control Unit Module ECU 3C8959760E
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BMW E88 Body Control Comfort Unit Module BCM Unit ECU 9305738
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Mercedes ML W164 OM642 Diesel Engine Wiring Loom Harness Cable A6421507733
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Audi A5 8T Multimedia Radio Sat Nav Screen Display Head Unit 8R0919604A
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VW Volkswagen Phaeton 3D Rear Tailgate Boot Lid Control Module Unit 3D0909610B
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Audi A1 8X Negative Battery Terminal 8K0915181L
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Mercedes-Benz W202 C208 Roof Alarm Motion Sensor Cover Trim Grey A2086900028
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BMW 7 Series E65 E66 Seat Occupancy Sensor Mat Electronic Control Unit 6917134
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BMW E60 E61 LCI E63 E64 Body Gateway Module ECU Control Unit 9167201
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Audi A5 8T Head Unit Radio Player Navigation Control Module 4G0035061H
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CD Changer BMW E65 E66 6-fold CD Disc Changer Without Magazine 9143440
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BMW E60 E61 LCI Front Bumper PDC Loom Cables Wiring Set 6928362
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Mini F54 F55 F57 B48 136HP Petrol Engine Control ECU Kit DME 8674258 Manual
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BMW E38 Radio Business RDS Cassette Audio Player Head Unit 8379279
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Audi Q5 8R 2.0 TDI Quattro Alternator Generator 03L903017B
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Mercedes W177 W247 Telematics Bluetooth Module Control Unit ECU A0009004434
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Mini One F56 B38 102HP Petrol Engine ECU Control Unit Kit DDE 8486844 BDC Key
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Ford Transit MK7 Radio 6000 CD Player Stereo Head Unit 6C1T18C815AJ
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Volkswagen VW Golf VI Passat B6 2.0 TDI Diesel Engine Starter Motor 0001123044
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BMW F10 M5 F06 F12 F13 M6 S63N Engine Alternator Generator 14V 210A 7606628
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Mercedes A238 Convertible Folding Top Roof ECU Module Control Unit A2389000501
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Porsche Macan 95B Antenna Amplifier Control Unit Module Holder Bracket 95B907515
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Skoda Octavia 5E Sat Navi Stereo Radio Audio Head Unit Player Screen 5E0919605J
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Audi A3 8V Air Module Control Unit SRS System ECU 5Q0959655A
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BMW E81 E87 LCI E90 116i 316i 1.6 N45N ECU Control Unit DME 7567321 Manual
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Mercedes W251 R 350 CDI 642.950 224HP Engine Unit ECU Kit A6421508100 Key + Lock
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Mercedes C118 W117 Battery Cable Negative Terminal Wiring A0009053816
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Audi Q5 FY Rear Boot Trunk Lid Tailgate Control Unit Module ECU 8W8959107B
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BMW F20 F30 LCI 118d 318d B47 150HP Engine ECU Kit DDE 8473185 FEM Key Automatic
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BMW E91 LCI ECU LED NSW Light Module Control Unit PL2 FRM II 9204532
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Earth Ground Cable Renault Master Vivaro Line Strap Battery Lead 240804802R
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MINI R50 R52 One 1.6i 90HP Engine ECU Kit DME 7553735 + Key + EWS Manual
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Amplifier BMW F06 F13 Antenna Amplifier Diversity 868 MHZ 9346795
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Mercedes W166 Parking Sensor Wiring Loom Cable Harness Front PDC A1665408332
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Audi A4 B9 2.0 TDI DETA Engine Starter Motor Actuator Starter 04L911024A
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BMW E60 Seat Control Unit Module Left Right N/O/S Temic 6927270
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PDC Wiring Mercedes W169 W245 Front Bumper Parking Sensor Loom Cable A1695403733
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Mercedes Vito W639 2.2 CDI 651.940 4-Matic ECU Kit Engine A6511501879 Key Lock
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Transfer Box Module BMW X5 X6 E70 E71 Control Unit ECU ATC700 7566297
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Peugeot 207 Fuse Box BSI Control Unit Module 9663798380
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BMW 3 Series E91 ECU Body Control Module H4 Electronic Box 61359176886 9176886
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BMW 1 3 Series E81 E87 E87N E90 E91 Radio BMW Business CD 65129141682 9141682
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Skoda Octavia II BKD 2.0 TDI Starter Motor 02E911023L
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Mercedes SLK R170 W202 W210 Module Control Unit SRS Sensor ECU Bosch A0018200826
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VW Volkswagen Polo 6R Negative Battery Terminal Cable Wiring 6R0971537F
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Mini Cooper R50 W10 116HP Engine ECU Kit DME 7520019 + EWS 3 + Key Manual
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VW Volkswagen Transporter T5 1.9 TDI Diesel Engine Control Unit ECU 038906016AJ
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BMW E66 E67 Airbag ECU Control Unit Gateway Module 6983067
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Renault Scenic 1.5 DCi Diesel Starter Motor Actuator Valeo 8200584675A
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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 .