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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BMW E90 E91 E92 E93 LCI Diesel N57 Alternator 150A 7808073 7805432
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BMW F20 F21 F22 F30 F32 LCI B47 Diesel Starter Motor Engine 8570846
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BMW F10 F11 Radio Player Alpine Audio CD Champ 2 Head Unit 9272002
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Audio Amplifier Mercedes W211 CLS C219 AMP Becker Sound Module Unit A2118706689
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Audi A4 B7 1.8 T BFB Petrol Engine Alternator Generator 06D903016AB
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Mercedes ML W164 Front Door Module Left N/S Control Unit ECU A1648200385
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VW Volkswagen Polo 6R Air Module Bag Control Unit 6R0959655K
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BMW E60 E87 E90 120d 320d 520d N47 ECU Control Unit Module DDE 7809000 Manual
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Mini Cooper One R56 High SPEG DC/DC Fuse Distribution Box H5 3455236
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BMW F30 F31 Seat Module Control Unit Memory Front Left Right N/O/S 9306085
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Audi A1 8X Air Module Control Sensor SRS System ECU Unit 8XA959655A
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Mini Cooper S R55 R56 R57 N14 1.6 ECU Basic Control Unit DME 7641003 Manual
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Mercedes W204 W211 W212 S212 Engine Starter Motor A2719060200
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Mercedes W203 W204 Petrol Engine Starter Motor A0061510501
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BMW E60 E61N LCI E63 E64 M5 M6 S85 Idle Control Device Unit 7834495
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Peugeot 308 9HP 1.6 Diesel DV6DTED Engine Control ECU Module 9666729580 Manual
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Starter Motor Volkswagen VW Golf IV Bora Sharan Diesel Engine 02M911023A
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Battery Cable Mercedes W176 W246 Negative Lead Wiring Harness A1669056001
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Mini Cooper One R50 R52 R53 Front Loudspeaker Speaker 6801102
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Audi A3 8P Air Module Control Unit ECU Module 8P0959655P
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BMW 5 6 Series E60 E61 E63 M-ASK Business Navigation System Controller 6944108
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BMW E87 LCI E90 120i 320i N43 170HP ECU Kit Engine DME 7580279 CAS3 Key Manual
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Mercedes W639 Fuse Box Relay Control Unit Electric Module SAM A6395450301
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Mini Cooper One R57 High PL3 SPEG DC/DC H5 Fuse Distribution Box 3456858
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BMW E81 E87 E90 Hands Free Electronics Charging Module MULF 6934552
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BMW X5 E70 X6 E71 Alternator Generator 170A 170AMP 14V VALEO BM57N2 7796125
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Mercedes CL203 Radio Aerial Antenna Amplifier Wiring Cables A2038200389
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Mercedes-Benz W169 W245 Alternator Generator Petrol 90A A2661540802
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Audi A3 8V Head Up Navigation Multimedia Screen Display Unit 8V0857273N
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BMW F20 F21 Stoplamp Third Brake Light Rear Stop Lamp Red 7241551
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Audi A4 B9 BCM Body Control Module Unit ECU 8W0907064CB
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BMW E92 Xenon Footwell Light Module Control Unit ECU FRMFA 9133281
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Mini Cooper S R56 N14 1.6 174HP ECU Kit DME 7641003 + CAS3 + 2 Keys Manual
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CAS3 Module BMW E60 E87 E90 E91 E92 Key Reading Control Unit 9287535
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Mini R50 R53 Body Control Unit Basic Module BCM BC1RD 6976988
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Fuse Box Mercedes W204 W212 SAM Relay Control Unit Module A2045404150
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BMW E60 E61 LCI E81 E82 E84 E87 LCI E90 E91 N47 Diesel Starter Motor 7798006
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Audi A5 8T Speaker Amplifier AMP Bang & Olufsen 8T1035223A
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BMW 5 6 Series E60 E61 E63 Airbag ECU Control Unit Centre Vehicle Sensor
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BMW 1 3 Series F20 F21 F30 LCI Headlight Control Unit Module FLE2 7457871
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Mercedes W168 OM668 Diesel Alternator Generator A6681540102
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BMW E81 E87 E90 E91 E92 Radio CD Professional 9150109 65129150109
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Rain Sensor Mercedes W204 W212 Light Solar Condensation Control Unit A2079012200
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Mercedes W209 Convertible Air Module SRS Control Unit ECU A2098200085
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Energy Distributor Mercedes W205 W212 W213 W906 Control Unit Module A0009821212
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Ford Transit Connect Engine Alternator Generator Unit Diesel KK3T-10300-BB
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Alternator Generator Mercedes W211 CLS C219 OM642 Diesel 14V 180A A0131547002
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BMW E87 E90 LCI N47 118d 318d Diesel ECU Kit DDE 8512499 CAS3 + Key Manual
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Alternator Generator Mercedes W164 OM642 180A Electrical Unit Diesel A6421540502
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Audi A5 8T A4 B8 Crash Impact Sensor Control Unit 8K0959651
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BMW 3 5 Series E60 E90 E91 330i 530i N52 Engine ECU Kit DME CAS2 Key 7561684
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MINI Cooper One R50 R53 Control Unit For Radio Remote Control 433MHZ 6923270
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Mercedes Vito W639 Earth Cable Battery Terminal Wiring A6395400431
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BMW F20 F21 F30 LCI Headlight Control Unit Module FLE2 7457873
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Mini Cooper Convertible R57 Fuse Box Electrical Control Unit 3450646
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BMW F20 F21 F30 F31 F32 Body Control Unit Module REM 9329704
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BMW E81 NSW ECU Light Module Footwell Module PL2 FRM II 6135 9197159
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Audi Q2 GA Air Module Control Unit 5QF959655BQ
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BMW X5 E70 Head Unit CIC DAB Professional Navigation System Controller 9278074
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Mini Cooper One R50 R52 Petrol W10 Compact Alternator 105A 7515029
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Audi A4 B8 Door Wiring Harness Loom Front Cabling 8K0971029M
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Mini Cooper One R50 R52 Starter Motor 0,9KW BOSCH 4542741
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BMW E87 LCI E90 120i 320i N43 170HP ECU Kit DME 7579142 CAS3 Key Automatic
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VW Volkswagen Polo 4 9N Radio CD Player Stereo Audio Head Unit 6Q0035152D
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CD Changer Mercedes ML W163 6 Disc Changer With Magazine A1638201589
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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 .