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 3 Series F20 F21 F30 LCI Headlight Control Unit Module FLE2 7457871
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BMW F20 F21 F30 F31 118d 318d 143HP N47N Engine Unit ECU DDE 8576341 Automatic
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Mini Cooper D F55 F56 B37 Engine Injector Wiring Harness Cable Loom 8518411
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Tuner Box Mercedes W207 W212 W218 Digital Audio Control Unit DAB ECE A2229002710
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BMW E90 E90N E91 E91N E92 E92N E93 LCI NOX Wiring Loom Cable 7541009
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Mini Cooper R56 Footwell Light Module High EKS ECU PL3 FRM3R 3456051
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MINI Cooper S R52 R53 Automatic Gearbox Basic Control Unit Module EGS 7570253
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BMW E90 E91 LCI N47N 318d 143HP Engine ECU Kit DDE 8510832 CAS3 + Key Manual
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Mercedes W177 W247 Battery Fuse Box Positive Distribution Terminal A2479061803
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BMW 5 Series E60 E61 PDC Parking Ultrasonic Sensor 6070190091
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Renault Trafic 3 Vauxhall Vivaro B Airbag Module Air Bag Unit ECU 985106142R
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Air Module Mercedes W639 W906 Control Unit ECU A9064461142
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Renault Master III DCI Alternator Support Bracket Mount 117103585R
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BMW 3 E91 ECU Body Control Module Junction Box M PL2RR JBBFE IIIR 9264577
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BMW E60 E61 X3 E83 Front PDC Parking Sensor Silver Grey Silbergrau - A08
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Volkswagen Fox 5Z Air Module Control Unit ECU Module 1C0909605K
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Audi A4 B8 Sat Nav Multimedia DAB Radio Control Head Unit 4G0035056
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GPS Module BMW E81 E87 E90 E91 LCI Combox Telematics Control Unit 9257162
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BMW X3 F25 X4 F26 Dashboard Monitor Onboard Central Display Screen 6,5" 9231321
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BMW E81 E87 E90 E91 E92 6-disc CD Changer With Magazine 9119707
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BMW Mini Cooper S R55 R56 Automatic Gearbox ECU Control Unit EGS Module 7600562
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Engine Wiring Mercedes W204 OM651 Diesel Harness Loom Cable A6511500156
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BMW E60 E61 PDC Parking Ultrasonic Sensor Rear Le Mans Blau Blue 381
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BMW F07 GT F10 F11 535d F13 640d LCI N57Z 313HP Engine ECU DDE 8586536 Automatic
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Mercedes SLK R172 Airbag Module SRS Control Unit ECU A1729015805
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BMW E93 LCI ECU Body Control Module H3 Junction Box PL2RR JBBFE IIIR 9247474
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BMW Z4 Series E85 E86 Body Control Unit Module GM5 Star12 DELPHI 6944844
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BMW E91 LCI ECU Body Control Module H4 PL2 JBBFE Junction Box 9187544
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Part no. 8706502
BMW 1 3 4 Series F20 F21 F30 F31 Radio Remote Control Receiver 434 MHZ 8706502
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Part no. 9240226
BMW F10 F11 Front Bumper PDC Wiring Loom Electrical Cable Harness 9240226
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BMW 3 Series E90 Xenon Footwell Light Module Control Unit ECU PL2 FRMFA 6961134
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Volkswagen Golf Mk7 Air Module Control Unit ECU 5Q0959655M
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Part no. 6934846-1
BMW 3 Series E91 E91N LCI Antenna Amplifier Diversity Unit 868 MHZ 6934846
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Steering Lock Mercedes W176 W246 Control Unit Module VST A0999004101
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BMW E81 E82 E87 LCI E88 N47S 123d 204HP Engine Unit ECU DDE Manual 7811702
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BMW 5 6 Series E60 E61 E63 Passenger Side Door Airbag Control Module 6952986
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Mini Cooper S R55 R56 Ignition Wiring Harness Injection Valve N14 7585950
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BMW E60 E63 E64 LCI Body module ECU 61356943062 6943062
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BMW 3 E36 316i M43 Engine Automatic Gearbox Control Unit EGS 1423079 1423000
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BMW 5 SERIES E60 E61 LCI 520d N47 Engine Wiring Loom Harness DDE Manual 7807198
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Audi A7 4G Multimedia CD Radio Control Head Unit 4G1035192A
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BMW Mini Cooper Convertible R57 Footwell Light Module ECU PL3 FRM II 3455701
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Mercedes-Benz C CLK Class W203 C209 Fuse Box Cover Engine A2035450403
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BMW X3 Series E83 Rear Left Right Door N/O/S Wiring Loom Cables 3412574
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BMW E60 E61 Doors Wiring Loom Harness Co-Drivers Passengers Side 9120773
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Mini One R56 LCI R60 N16 98HP Petrol Engine ECU DME 7607685 Control Unit Manual
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Vauxhall Opel Relay 4-Pin Tyco Unit Yellow 90226846
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Part no. 9249080-1
BMW E87 LCI Footwell Light Control Unit Module ECU Lear FRM3R PL2 9249080
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Air Module Mercedes Vito W639 Sprinter W906 Control Unit ECU Sensor A9064461542
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BMW F20 F21 Radio BMW Professional CD DAB Player Controller F21 F22 F30 9331211
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BMW E87 LCI Light Module BASIS LCM Footwell Module PL2 FRM II 9241002
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Part no. 8513242-2
BMW F10 F11 520d Diesel N47N 184HP Engine Control Unit ECU DDE 8513242 Automatic
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BMW 1 3 Series E81 E87 E90 E91 Hands-free Electronics Charging MULF2 9132539
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SAM Module Mercedes CLK W209 C209 A209 Fuse Box Relay Control Unit A2095452801
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Audi Q3 8U Air Module ECU Sensor Control Unit 8U0959655D
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Part no. 8573258-1
BMW F20 F21 116d N47N 116HP ECU Kit DDE 8573258 + Key + FEM Manual
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BMW E60 E60N E63 E63N Body Control Module ECU Control Unit 9168833
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Part no. 7806779
MINI Cooper One D R55 R56 Alternator Generator Diesel 150A 7794970
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BMW 7 Series E65 E66 E67 Diagnosis Interface Media System MOST Jumper 6917541
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Part no. 6946947
BMW X5 E53 Basic Body Control Unit Module GM3 6946947
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Part no. 9177985-1
BMW E93 Cabrio ECU Body Control Module H3 Junction Box 9177985
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Mercedes ML W164 Front Door Module Left N/S Control Unit ECU A1648200385
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Part no. 9335347-1
Radio Player BMW F20 F21 F30 F31 CD DAB Head Unit Audio Player 9335347
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Part no. 059903015P
Volkswagen Touareg Audi Q7 Water Cooled Alternator 190A 059903015P
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Part no. 9145022
BMW E60 E61 E63 E64 Body Gateway Module KGM LOW
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Part no. 1438902
BMW X5 Series E53 4.4i Petrol M62 B44 448S2 Engine Wiring Loom Harness 1438902
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Part no. A2079005400
Mercedes W204 W207 C218 W212 E220 Navigation 20 Control Module Unit A2079005400
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Part no. A6395450301-2
Mercedes W639 Fuse Box Relay Control Unit Electric Module SAM A6395450301
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Part no. 7543083-3
Alternator BMW E60 E61 E87 E90 E91 N52 Generator 155A Bosch LRA02970
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Audi A4 B9 Camera Control Module Unit ECU 8W0907428C
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Part no. 7560955-1
BMW 3 Series E90 320si 173HP DME 7560955 Petrol N45 ECU Kit CAS2 + Key Manual
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BMW E87 LCI E90 118i 318i N43 143HP ECU KIT DME 7599881 CAS3 + Key Automatic
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Mini Cooper R56 Automatic Gearbox Basic Control Unit EGS 7574294 7571340
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Mercedes W176 W207 W246 USB Interface Multimedia Adapter Connector A1728202100
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Part no. 6942507
Mini R52 R53 Battery Cable Wiring Lead Positive Plus Pole 6942507
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BMW 3 Series E46 Radio Business Cassette Player 6928762
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Part no. 8488548
High Voltage Inverter BMW i3 I01 Hybrid 120Ah Rex Electrical Machine 8488548
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Mercedes ML W164 Air Module System Control Unit A1648209585
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Control Panel Mercedes W212 Comand Navi CD Switch Push-Button A2128702751
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Mercedes W169 W245 Petrol Engine Starter Motor A0061510301
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Mercedes-Benz ML W163 Parktronic Parking Control Unit Module A1635457432
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Mini Cooper One R50 R53 Body Control Unit Basic Module BCM 6961364
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Mercedes C292 GLE 350d 4-Matic OM642.826 Engine Control Unit ECU A6429004701
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VW Volkswagen Touareg 7L Radio Player Navigation Sat Nav Head Unit 7L6035191R
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Alternator BMW X3 E46 X5 E53 E85 Diesel Generator 150A 7797660
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Mini Cooper One R56 High SPEG Fuse Distribution Box SPEG High 3448964
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Anti Theft Module BMW X3 X5 E39 E46 E53 E83 Control Unit EWS IV 6988104
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Part no. 7823422
ECU Engine Control BMW E81 E87 E90 LCI 118d 318d N47 Diesel DDE 7823422 Manual
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Part no. A1635400534
Mercedes-Benz M ML W163 Front Left Right Door Wiring Loom Harness A1635400534
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Part no. 3457163
BMW Mini Cooper One R56 LCI High PL3 SPEG H4 Fuse Distribution Box 3457163
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Mini F54 F55 F56 F57 F60 Rear Electric Power Distribution Fuse Box 9270354
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Volkswagen Tiguan 5N Battery Lead Positive Cable Plus Pole Wiring 5N0971228D
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Part no. 9236520
BMW X1 E84 Front Bumper Loom Cable Harness Parking Sensors PDC Wiring 9191449
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Part no. 9236531
BMW E81 E87 E90 E91 LCI E92 E93 CD Radio Business 9236531
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Part no. 3456852
Fuse Box MINI R56 LCI Cooper One PL3 SPEG H5 Distribution Control Unit 3456852
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Part no. 6970701-2
Rear Bumper Antenna BMW E93 E93N LCI 2 Aerial Telephone 6970701
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Part no. 8512498
BMW E84 20dX N47 177HP ECU Control Unit Kit DDE 8512498 Automatic Transmission
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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 .