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 W251 R 320 CDI 642.950 224HP Engine ECU Kit A6421506434 Keys Lock
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Volkswagen Tiguan 5N Sat Navi Stereo Radio Audio Head Unit CD Player 2K0035279C
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Positive Cable Mercedes W906 OM651 Battery Starter Alternator Plus A9064402341
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Audi A5 8T MMI Multimedia Navigation Radio Control Head Unit 4G0035061S
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Telematics Module BMW F01 F07 F10 F12 Bluetooth Control Unit ECU 9228272
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Mercedes W176 W246 A180 B180 BlueEFFICIENCY 270.910 122HP Engine ECU A2709002100
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Audi A8L 4H Rear View Backup Camera Control Unit Module 4H0907441A
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Information Display BMW E81 E82 E87 E88 Board Monitor Central Screen 9145437
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Volkswagen Polo 6N Alternator Generator BOSCH 14V 70A 028903025G
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BMW E60 530i M54 231HP Engine ECU Kit Unit DME 7533651 + CAS2 + Key Automatic
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VW Volkswagen Touran 1T Airbag Side Impact Crash Sensor Air Bag 5M0909606A
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Renault Trafic Vauxhall Vivaro 2.0 DCI Diesel Alternator Generator 231001423R
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Mercedes W251 R 350 CDI 642.950 224HP Engine Unit ECU Kit A6421508100 Key + Lock
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Volkswagen Touran 1T Scirocco III BCM Body Control Module Unit ECU 5K0937087AD
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BMW X5 X6 E70 E71 Rear Differential Control Module Unit QMV 7595847
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Audi A3 8Y Rear Door Control Module Unit ECU Driver's Side Right O/S 5Q0959595L
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Audi A5 8T Headlight Range Headlamp Control Unit Module ECU 8K0907357A
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BMW E81 E87 LCI 116i 1.6 Petrol N43 122HP ECU Kit DME 7599881 CAS3 Key Manual
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BMW 5 6 Series E60 E61 E63 Passenger Side Door Airbag Control Module 6944499
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Mercedes W203 W204 W212 OM642 Glow Plug Relay Unit Control Module A6429002700
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BMW F20 F21 F30 F31 LCI F32 F33 F34 Alternator Petrol Engine Unit 180A 8645325
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Fiat Doblo 2.0 Multijet Diesel Engine Starter Motor 51984359
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Volkswagen Golf CD1 Front Door Right O/S Loom Wiring Cable Harness 5H4971162MP
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BMW E60 LCI E63 CHAMP Business System Controller CD Player 9196760
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Audi S5 8T Amplifier Speaker Bang & Olufsen Control Module Unit 8T0035223AN
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Volkswagen Sharan 7N Sliding Door Locking Catch Plate Left N/S 7N0843639
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Audi A3 8V Body Control Comfort Unit Module BCM Unit ECU 5Q0937084AJ
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Mercedes W204 Centre Console Lightning Dashboard Cable Wiring A2045401307
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Radio Head Unit Mercedes W212 COMAND Navi CD DVD Player Control Unit A2129068800
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Mercedes W166 Parking Sensor Wiring Loom Cable Harness Front PDC A1665408332
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Mini Cooper R56 LCI R60 N47N 122HP Diesel Engine ECU Kit DDE 8519663 CAS 3 Key
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Audi A4 B8 A5 8T A6 C7 Starter Motor Actuator Bosch Diesel Engine 03L911021G
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Fuse Box Mercedes W211 W219 Junction Relay Control Unit Module SAM A2115459001
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Mercedes W205 SAM Module Comfort Control Unit ECU A2229007009
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Mercedes W213 Air Con Conditioning Module A/C Climate Control Unit A2139000407
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BMW G16 G26 Tailgate Lift Boot Lid Control Unit Module Trunk 9852925
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BMW 1 2 3 4 Series F20 F21 F30 F31 F32 Rain Light Solar Sensor 6814596
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Starter Motor Mercedes W204 W212 Sprinter W906 OM651 Diesel Engine A0061514501
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Hyundai H-1 Safety Module Air Bag SRS Control Unit ECU Module 95910-4H600
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Display Screen Mercedes W907 W910 Head Unit Touch Monitor 7" A9079001703
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BMW F30 F32 LCI 335dX 435dX N57Z Engine Wiring Cable Loom Harness 8574019
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Ford Mondeo MK4 Galaxy MK3 1.8 TDCI Diesel Engine Starter Motor 6G9N11000EC
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Audi A4 B8 2.0 TDI Alternator Generator 150A Diesel Engine Unit 03G903016F
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Porsche Cayenne 92A Front Headlight Xenon Ballast Control Module Unit 7P5907381B
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Seat Ibiza FR KJ1 Fuse Distribution Box Electrical Control Unit 2Q0937548D
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Audi A6 C7 Board Supply Comfort BCM Body Control Module Unit ECU 4H0907063CF
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Volkswagen Golf VII R 2.0TSI CJXC 300HP Engine Control ECU Kit 06K907425B Manual
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BMW X5 X6 Series E70 E71 Transfer Box Control Unit Module ECU 7605031
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Mercedes C118 W117 Battery Cable Negative Terminal Wiring A0009053816
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BMW Z4 E85 2.0i N46 150HP ECU Control Unit Module Kit DME 7565300 EWS Key Manual
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Mini Countryman F60 Audio Amplifier Hifi Unit Active Sound Design System 5A4E600
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Audi Q5 FY Rear Boot Trunk Lid Tailgate Control Unit Module ECU 8W8959107B
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BMW X5 E70 CD Player Head Unit CIC DAB Professional Navigation Sat Nav 9257200
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Mercedes W169 W204 W212 Battery Cable Negative Lead Wiring Harness A0009052702
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Audio Speaker BMW F20 F21 F23 F30 Mid-Range Sound Speaker Stereo HiFi 9288769
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Sound Amplifier Mercedes W204 W211 W212 C219 Audio Harman Becker AMP A2118705189
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BMW F20 F30 Mini F60 KAFAS 2 Camera Speed Control ECU Module Unit 5A0B302
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Audi A4 S4 B6 A7 4B Crash Impact Sensor 8E0959651
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Audi S3 8P Body Control Comfort Unit Module BCM Convenience Unit 8P0959433C
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Mini R50 R53 6-Disc CD Changer Multichanger Without Magazine 6983334
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Alternator Iveco Daily II Engine Alternator Generator 140A 504057813
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Seat Ibiza FR Double USB C Charging Port Socket Connection 575035736A
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Mercedes W212 E63 AMG Drive Unit Extended Control Module ECU A0009009903
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Control Unit Mercedes W213 W217 Front Right O/S Door Control Module A2139002522
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Mercedes Sprinter W906 Fuse Box SAM Control Unit Module A9069004700
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Vauxhall Vivaro B Renault Trafic 3 Fuse Box Battery Terminal Module 243501820R
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BMW Mini Cooper One R55 R56 Multifuse B Battery Power Distributor 9136726
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Fiat Doblo 1.9 JTD Engine Ignition Coil Wiring Harness 1439207
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Volkswagen Golf Mk7 Air Module Control Unit ECU 5Q0959655M
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Mercedes W203 W204 Petrol Engine Starter Motor A0061510501
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Volkswagen Touareg 7L Control Comfort Unit Module Unit ECU 7L6959933
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Fuse Box Mercedes W205 W222 Electrical Relay Box Module Unit A2229063202
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BMW E61 Body Control Module ECU Unit KBM High 6978714
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BMW F10 F11 F20 F21 F30 F31 F32 Navigation DAB Head Unit High 9289614 9290361
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Nissan Qashqai J10 Renault Koleos 2.0 dCi Engine Alternator 23100JD71A
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BMW i3 I01 F10 F20 F30 LCI KaFAS Camera Speed Control ECU Module Unit 9359799
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Mercedes W204 Rain Light Solar Condensation Sensor Control Unit A2048703526
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BMW E46 Radio Business Cassette Player Audio Control Head Unit 6902659
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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 .