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 1 Series E81 E82 E87 LCI N47S 123d ECU Kit DDE CAS 3 Keys 7810002 Manual
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FEM Module BMW F20 F21 F30 F31 F36 Front Electric Control Unit 5A7FB57
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Mercedes W639 109CDI 646.980 95HP Engine Control Unit ECU Kit A6461507272 Manual
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BMW F40 Ultrasonic Alarm System Module Control Unit 5A44586
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Volkswagen Scirocco Rear Number Plate Wiring Harness Cable Loom 1K8971104D
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BMW F20 F21 A/C Climate Control Unit Module Air Conditioning 9273673
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Mini Cooper One R56 LCI Footwell Light Module Low EKS ECU PL3 FRM3R 3456587
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DAF 85CF Air Suspension Module Regulation Control Unit WABCO 446055312
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NAPA AGM Accumulator Car Battery Electrical Unit 70Ah 760A 12V AGM096N
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BMW E87 LCI E90 E91 120i 320i Petrol N43 170HP ECU KIT DME 7575665 CAS3 + Key
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BMW X3 E83 LCI 2.0d N47 177HP Engine Control Unit ECU Kit DDE 8506373 EWS Key
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Mercedes W203 C180 Kompressor M271.946 Engine ECU A2711532291 Automatic
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Audi A3 8P 1.9 TDI BLS 105HP Engine Control Unit ECU Kit 03G906056S Manual
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Roof Light Wiring Mercedes W211 CLS C219 Rear Lamp Module Cable Loom A2114401906
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Starter Motor Audi Q3 8U Volkswagen Passat B7 Engine Starter Actuator 02E911024C
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BMW E60 E90 330i 530i N53 272HP ECU Kit Control DME 7588620 CAS3 Key Automatic
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Seat Wiring Mini F54 F55 F56 Front Left N/S Loom Harness Cable Plug 9312680
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Wiring Bracket BMW E60 E61 X3 E83 Diesel Engine Harness Cable Loom Mount 7799470
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BMW E84 ECU Body Control Module H2 PL2RR JBBFE IIIR Junction Box 9253482
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Mini F54 F55 F56 B37 Diesel 116HP Engine ECU Kit DDE 8591073 FEM + Key Automatic
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BMW F20 F21 LCI 118i B38 136HP Engine Control Unit ECU DME 9895416 Automatic
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BMW E60 E61 E63 E64 LCI Top Hifi System Amplifier Control Unit Module 9198762
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Mercedes Vito W639 Sunroof Panoramic Roof Control Unit Module A6395450032
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Ford Transit Custom Air Module ECU Control Unit BK2T14B321AG
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BMW E90 LCI Footwell Light Module Control Unit ECU FRM3R PL2 9240531
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Mercedes C219 Air Suspension Control Unit Module Airmatic A0375451232
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BMW E60 E65 E87 E90 Starter Motor Engine 7798034
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Mercedes W204 COMAND Navigation CD Player Radio Sat Nav Head Unit A2049009510
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MINI Cooper S R53 W11 170HP Engine Control Unit Module ECU DME 7527610 Automatic
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Audi TT 8N Radio Media Player Audio CD Head Unit Player Concert 4B0035186Q
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Audi A3 8V Negative Battery Terminal Cable Harness Wiring Loom 5Q0915181H
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BMW F90 M5 F92 M8 G11 G15 G20 G29 G30 G32 Fuel Pump Control Unit Module 9485034
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Audi A6 C6 Q7 4L Bluetooth Telephone Control Module ECU 4E0910336H 4E0862335
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BMW X1 E84 18sD N47N sDrive Engine Control Unit ECU DDE 8574351 Automatic
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Mercedes Vito W639 OM646 Diesel Engine Wiring Cable Loom Harness A6394400105
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BMW 3 Series E92 Max Brose Footwell Light Module Control Unit ECU FRM3R 9241008
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BMW F20 F21 F30 F31 Airbag Control Unit Module 9461919 0285015095
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BMW E90 E91 LCI 325i N53 218HP Engine ECU Kit DME 7583332 CAS3 + Keys Manual
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BMW E60 E61 Body Gateway Module KGM HIGH 9118729
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Radio Head Unit VW Volkswagen Golf 6 Passat B7 Media Player Unit 1K0035186AQ
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Mercedes-Benz CL S Class C215 W220 Antenna Amplifier Filter Module A2208201489
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BMW F10 F11 F30 320i N20 ECU DME Engine Control Unit Module 8606306 Manual
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Mercedes W204 C180 156HP Kompressor M271.910 Engine ECU Kit A2711502779 Key
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Alpine CHM-S630 6-disc Compact CD Changer Multichanger Digital Audio Magazine
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Mercedes GLA X156 220d 651.930 170HP Engine ECU Kit Ignition + Key A6519009702
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BMW X5 E70 X6 E71 30dX Diesel N57 245HP ECU Kit DDE 8517015 CAS3 Keys Automatic
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BMW E87 LCI E90 118i 318i N43 143HP ECU Engine Control Unit DME 7580279 Manual
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Ford Transit Mk7 Hands Free Telephone Microphone 8C1T19A391BA
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Audi A4 B7 BPW 2.0 TDI 140HP Diesel Engine Control Unit ECU 03G906016KN Manual
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BMW E90 E92 330i 272HP N52N Engine Control Unit ECU DME 7576297 Automatic
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Adapter Lead Wire BMW G11 G30 G31 VDC Cable Front Right O/S Harness Loom 6869074
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BMW i4 G26 High Voltage Battery Cable Wiring Harness Loom 5A2DB59
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Volkswagen Polo 6R Parking Sensor Wiring Rear Bumper PDC Loom Cable 6R0971065
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BMW Z4 E85 2.2i M54 170HP Engine Control ECU Kit DME 7541335 EWS3 + Key Manual
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BMW 7 Series E65 E66 E67 Control Unit Door Rear Driver Side 6933270
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BMW X3 F25 X4 F26 ACC Radar Sensor Module Unit Cable Wiring Plug 9315082
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Audi A4 B8 Air Module Control Unit ECU Crash Control 8K0959655J
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Mercedes W205 Door Electrical Wiring Harness Front Left N/S A2055400555
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Ford Transit MK8 2.2 TDCI 100HP Engine Control Unit ECU Module BK21-12A650-AC
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*BMW Mini Cooper R55 PL3 SPEG H4 Fuse Distribution Box 3455530
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Audi A3 8P 1.6 MPI Petrol Starter Motor Engine 02T911023M
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Mercedes W176 A220 CDI BlueEFFICIENCY 651.930 170HP Engine Unit ECU A6519003001
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BMW E87 E90 E91 118d 318d M47N2 Engine ECU Kit DDE CAS2 Key 7801710
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BMW i4 G26 G20 Radio Audi Receiver Module DAB HIGH ECO Harman Becker 5A9BF91
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BMW E65 E66 Sensor Air Bag Front Left Door N/S Module Airbag 6960227
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BMW E81 E87 LCI E90 116i 316i 115HP N45N ECU Kit DME CAS3 Lock + Key 7581848
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Mini One R56 LCI R60 N16 98HP Engine Control Unit Module ECU DME 8600124 Manual
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BMW F20 F30 F32 125i 325i 425i Petrol B48 224HP ECU DME 8692971 + FEM + Keys
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Mercedes W221 Telephone Keypad Control Unit Module A2218230350
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BMW F13 Central Information Display Screen CIC Navigation Professional 9247874
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BMW E90 E91 E92 335i 306HP Engine N54 ECU Kit DME 7575875 + CAS3 + Key Manual
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Audi RSQ3 F3 Audio Central Computer Head Unit Navigation 82A035043A
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BMW F30 328i F33 428i N20 245HP Engine Control Unit ECU DME 8626172 Automatic
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BMW F01 F02 F04 F07 LCI Footwell Light Control Module ECU Unit FRM3 9236458
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Door Module Mercedes W205 W213 X253 Rear Right Door Control Unit A2139003022
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BMW X5 Series E53 Battery Positive Lead Red Cable Wire Plus Pole 6906911
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Mercedes ML W164 Audio 20 Stereo Radio CD Head Unit Player A1648209289
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Mercedes W639 Vito OM646.982 109HP Engine Module ECU Kit A6461503278 Key Lock
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Parking Module BMW E81 X1 E84 E87 E90 E91 PDC Sensor Control Unit 6982394
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BMW E90 E91 LCI 320d N47N 184HP ECU KIT DDE 8519668 + CAS3 + Key Manual
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Mini R55 R56 N14 1.6 174HP ECU Kit DME 7587548 CAS3 + Key Automatic
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BMW E60 E90 330d 530d M57N2 ECU Engine KIT DDE 7803369 CAS3 + Key
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BMW F20 F21 F30 F31 F32 Body Control Comfort Module Unit FEM ECU LR01 9395177
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Mini One F56 B38 102HP Petrol Engine ECU Control Unit Kit DME 8635624 BDC Key
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Ford Transit Custom Mk8 Front Windscreen Rain Sensor Module LU5T-17D547
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Mini One R55 R56 N12 1.4 Petrol Engine ECU Kit DME 7588502 CAS3 + 2 Keys Manual
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Citroen Relay III 2.2 HDI 140HP DW12RUD Engine Control ECU 9824601180 Manual
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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 .