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 Vito W639 Air Module System Control Unit A6394460442
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Radio Player Mercedes-Benz W204 COMAND Navi CD Head Unit A2048700594
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Parking Distance Audi A3 8V TT Mk3 Seat Leon MK3 Control Module 5Q0919283E
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Mercedes W209 Convertible Air Module SRS Control Unit ECU A2098200085
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Rain Sensor Audi Q3 RSQ3 F3 Front Windscreen 81A955555B
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BMW F20 F30 116i 316i N13 136HP Engine ECU KIT DME 8625241 + FEM + Key Automatic
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Citroen Relay III Air Module Sensor Control Unit ECU 12V 46859297
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BMW 1 Series F20 F21 318d N47N 116HP ECU Kit DDE 8517874 + Key + FEM Manual
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Communication Module Mercedes R172 C117 W176 Hermes LTE Control Unit A2229004519
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Mercedes W906 313 CDI OM651.955 129HP Diesel Engine ECU A6519003203 Manual
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Peugeot 307 1.6 HDI Diesel Engine Wiring Cable Loom Harness 9658277780
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Volkswagen Golf CD1 Park Parking Assist PDC Distance Control Module 5R3919294
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BMW F20 F21 F30 F31 118d 318d 143HP N47N Engine Control ECU DDE 8576341 Manual
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Audi A5 8T Stereo DAB CD Player Radio Receiver Head Unit 4G0035061N
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Mercedes W212 E200 BlueEFFICIENCY M271.860 184HP Engine ECU A2711500391
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Mercedes W204 Navigation Radio CD Player Head Unit A2049007202
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BMW Z4 E89 Central Information Display Dash Screen Navigation Monitor 9282022
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Mini Cooper S R55 R56 R57 N14 1.6 174HP ECU Kit DME CAS 3 + Key 7587548 Manual
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Mercedes SLK R171 Fuse Box SAM Relay Control Unit Module A1715450101
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Mercedes W205 Head Radio CD Player Navi Interface Control Unit A2059006222
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Mercedes W204 W212 E220CDI OM651 Diesel Engine Control Module ECU A6519005301
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BMW F10 F30 330d 530d 258HP Engine Control Unit N57N ECU DDE 8577835 Automatic
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BMW E64 E89 B-pillar Sensor Left N/S 6942101 6945157
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VW Volkswagen Touareg 7L Radio Player Navigation Sat Nav Head Unit 7L6035191R
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Audi Q2 GA Online Services Control Module ECU Unit 2GA035284B
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Audi TT 8J 2.0 TFSI Petrol Fuel Injectors Wiring Harness 06F971082F
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Engine Alternator BMW F20 F21 F30 LCI Generator Lucas 170A N13 Petrol 7605060
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Volkswagen Crafter SY Rear Lamp Tail Light Wiring Harness Right O/S 7C0945096J
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BMW E93 Convertible Hall Sensor Trunk Boot Control Unit Module 6958127
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Audi TT FV Central Gateway Control Unit Module ECU 8S0907468B
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Mercedes SLK R171 Door Module Front Left N/S Control Unit ECU A1718207126
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Integrated Supply Module BMW F40 X1 F48 Mini F55 F56 Control Unit Z11 8642761
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Mercedes SLK R171 Fuse Box SAM Relay Control Unit Module A1715451001
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Mercedes C219 CLS 320 642.920 224HP Engine Unit ECU Kit A6421503972 Key Lock
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BMW E87 E90 E91 120i 320i N46 150HP ECU Kit DME 7565300 CAS3 + Key Manual
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Porsche Porsche S 986 Wiper Interval Relay 7 Pins 99661510300
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BMW F20 118d F30 318d 143HP N47N Engine ECU Kit DDE 8576341 + Key + FEM Manual
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Mercedes Sprinter W906 OM651 Battery Wiring Harness Loom Cable A9065403815
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BMW F20 F21 F30 116d 316d N47N 116HP Engine Control Unit ECU DDE 8579479 Manual
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Door Module Mercedes W221 Front Right O/S Control Unit A2219007401
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PDC Module Mercedes W176 W246 Parking Assist Distance Control Unit A0009003210
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Audi A6 C6 Display Screen Multimedia Navigation Dashboard Unit 4F0919603B
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BMW E60 E90 330i 530i N52 258HP ECU Kit DME 7553166 + CAS2 + Key Automatic
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Audi S4 B8 3.0 TFSI CGWC 333HP Quattro Engine Control Module ECU Kit 8K5907551B
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Skoda Octavia Fabia Mk3 VW Polo Mk6 Rain Sensor Control Unit Module 5Q0955547C
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BMW X3 Series E83 LCI Wiring Harness Engine Gearbox Module 3452226
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Porsche Boxster 986 Sunroof Control Relay Module 98661819900
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Head Unit BMW F07 GT Car Infotainment Computer Sat Nav Multimedia DAB 9275510
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BMW X5 E70 Head Unit CIC DAB Professional Navigation System Controller 9218356
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Bowden Cable Mercedes W639 Rear Right O/S Sliding Door Handle Catch A6397602004
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Mercedes W205 X253 Distronic Radar Sensor Cruise Control Unit Module A0009005109
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Engine Wiring BMW F87 M2 F82 F83 M4 S55 Loom Module Harness Cable 8092797
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Volkswagen Golf Mk7 Gateway Control Unit Module 5Q0907530L
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BMW E60 E61 E63 X3 E83 F25 Cigarette Lighter Power Socket 12V 6917701
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Audi A5 8T Dynamic Active Steering Module ECU 8K0907144E
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Volkswagen Touareg Audi Q7 Water Cooled Alternator 190A 059903015P
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Audi A8 D4 Boot Trunk Lid Tailgate Lift Control Unit Module ECU 3AA962243D
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SAAB 9-3 1.9 TTiD ECU DDE Engine Control Unit Module 55568896
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Mini Cooper R55 R56 Petrol N12 1.6 ECU Kit DME CAS3 + Key 7640004 Manual
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Audi Q7 4L Power Distribution Box Control Unit Plus Housing Cover 7L0937401B
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Mercedes R172 BlueEFFICIENCY 271.861 184HP Engine ECU Kit A2711500391 Keys Lock
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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 .