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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Relay BMW E60 E87 E90 F10 F30 4 Pin Tyco Set Black 6901469
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BMW 1 2 3 4 Series F20 F21 F22 F30 F31 F32 F36 Module Control Unit FEM 9315683
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Audi A6 C7 Parking Brake Handbrake Module Control Unit 4H0907801F
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Mercedes W906 311 CDI 109HP OM646.985 Diesel Engine Control Unit ECU A6461506372
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Radio Head Unit Mercedes W212 CD Audio Player Head Control Unit A2129004910
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BMW E87 E90 E91 118d 318d M47N2 Engine Control Unit ECU DDE 7801710 Manual
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BMW 5 Series E61 Touring Body Control Module ECU Unit KBM High 9168835
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Audi A4 B9 8W Q5 FY Audio External Connector AUX USB Port 8W0035708
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BMW E81 E87 E90 E92 LCI 120d 320d N47 ECU Control Unit Module DDE 8506438 Manual
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BMW E91 Touring ECU Body Control Module H4 PL2 61359131782 9131782
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BMW 3 E91 LCI Footwell Light Control Module LCM LED Basis FRM3R PL2 9241005
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BMW F90 M5 G11 G30 Fuse Box Power Distribution Unit Front Right O/S 9350313
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Mercedes W177 Fuse Box Front Central Body Control Module BCM Unit A2479005708
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BMW X3 E46 E83 LCI Start Point Housing Bracket Base B 8385157
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Door Cable BMW E93 Convertible Wiring Loom Front Cables Passenger Side 6926332
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BMW 3 Series E90 E91 E92 E93 LCI 320d N47N Engine Wiring Loom Harnes 8507876
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Seat Leon Cupra 5F Xenon Headlight Ballast Control Unit Module ECU 5F0941472
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Mercedes SLK R171 Door Module Front Left Control Module A1718206926
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MINI Cooper R50 Petrol W10 116HP Engine ECU Kit DME 7542310 EWS3 Key Manual
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BMW E90 E91 Petrol N52 Wiring Loom Harness Engine Automatic Gearbox
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BMW E81 E87 E90 MULF Hands Free Electronics Charging Module 9116725
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BMW X5 E53 Amplifier Hifi Speaker System 65128379376 8379376
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Mercedes Vito W639 Fuse Box Relay Control Unit A6395450401
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Mercedes Sprinter W906 Alternator Generator Diesel 180A 14V A0009068802
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BMW F20 F21 114i N13 102HP Engine Control Unit Module ECU DME 7640755 Manual
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BMW E60 LCI E63 CHAMP Business System Controller CD Player 9196760
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Fuse Box Mercedes W205 Front Passenger Side Footwell Fuse Box A2225403150
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Mercedes W204 Fuse Box Relay Control Unit Electric Module SAM A2045454501
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BMW X5 E70 Footwell ECU Light Control Unit Module FRM3R Basis Lear 9224616
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Mercedes W176 W246 180 CDI OM607 Engine Control Unit Module ECU A6079002300
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Mercedes GLE250 W166 OM651.960 204HP Engine ECU Kit Ignition + Key A6519004201
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BMW 1 3 Series E81 E87 E90 E91 Radio BMW Business CD Player Control Unit 9141682
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BMW 3 Series E90 Xenon Footwell Light Module Control Unit ECU PL2 FRMFA 6977724
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BMW 5 7 Series E60 E61 E65 E66 Seat Control Module Ecu Sensor
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BMW 3 5 X5 Series E46 E39 E53 M57 3.0d DDE 7789376 Engine Control Unit Module
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Mini Cooper R56 N12 1.6 120HP Petrol Engine ECU Kit DME 7573701 CAS3 + Keys
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BMW E81 E82 E87 E88 E90 E91 E92 E93 Radio Professional CD Player 9263459
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CD Changer Mini Cooper R50 R52 R53 6-Disc Multichanger with Magazine 6946989
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BMW E81 E87 LCI E90 116i 316i 1.6 N45N ECU Kit DME 7567321 + CAS3 + Key Manual
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Audi Q5 8R Rear Door Control Module Unit ECU Left Right N/O/S 8K0959795G
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BMW E60 LCI E90 325d 525d M57N2 Engine Control ECU DDE Kit 7811151 Automatic
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Audi A4 B8 Body Control Comfort Unit Module BCM Unit ECU 8K0907064CC
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Audi Q5 FY Front Windscreen Windshield Lane Assist Camera 80A907217A
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Battery Box BMW G30 G31 Positive Fuse Battery Distribution Terminal Rear 6802943
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Mercedes W118 W177 W206 W247 Air Quality NOX Sensor A0009054807
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BMW 1 Series E81 E87 LCI Boardmonitor Central Information Display 6,5" 9193753
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BMW G30 Telematics Control Module ECU Unit 8720294
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Mercedes C117 W176 W246 Positive Battery Terminal Cover Cap Trim Red A0005465402
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Audi A6 C7 Head Up Navigation Multimedia Screen Display Unit 4G2919601C
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BMW X5 E53 3.0d M57 Earth Cable Battery Cable 7786372 12427786372
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Display Screen BMW F30 F31 F32 F33 Central Information Display 8,8" 9292248
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Ford Transit Connect Control Unit Central Door Locking Module ECU 9T1T-15K600-DD
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BMW Mini Cooper R60 R61 Wiring Cable Harness Instrument Dashboard Dash 9811221
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Mini Cooper One R55 R56 R57 Radio Boost CD Player Head Unit 3453634
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BMW E90 E91 LCI E92 330d Diesel N57 245HP ECU Engine Unit DDE 7823973 Automatic
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Mercedes-Benz C-Class W204 Dashboard Navigation Central Display Screen Monitor
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Comfort Module BMW E81 E87 E90 E92 Access Passive Go Control Unit 6955753
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BMW F30 F31 320i N20 184HP ECU Control Unit Kit DDE 7649131 Key FEM Automatic
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Display Screen BMW F30 F31 F32 F33 Central Information Display 8,8" 9292248
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Ford Transit MK6 2.4 TDCi Diesel Engine Control Unit ECU 4C11-12A650-JG
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Audi A6 A7 A8 RS6 C7 Front Camera Assist Line Unit 4G0907217A
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Module Mercedes W205 Fuel Pump Control Module In Trunk Rear ECU A0009003505
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Mini One R55 R56 R57 LCI N16 1.6 Petrol Engine ECU Kit DME 7615981 + CAS 3 + Key
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Audi A5 8T Speaker Amplifier AMP Audio Control Unit Bang & Olufsen 8T1035223
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BMW 5 series E60 E61 Head-Up Display Hud Project Dash Screen 6963885 6955734
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Fuse Box Mercedes SL R231 CLS C218 Fuse Relay Box Sam Control Module A2129002927
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Mercedes W205 Body Control Comfort Unit Module BCM Unit ECU A2229009708
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BMW 6 Series E63 LCI Light Control Unit Module LCM LM E6X LWR LEAR 9154943
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Mercedes W176 W204 W207 W212 W246 Fuel Pump Module Control Unit ECU A0009007306
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Audi A1 8X BCM Body Control Module Power Supply Unit 8X0907063AB
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BMW E60 E90 E91 LCI 330i 530i N53 218HP ECU Control Unit DME 7592080 Automatic
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BMW E60 E87 LCI E90 E91 N47 Preheating Control Glow Plug Unit Diesel Hitachi
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Audio Amplifier BMW F20 F21 F22 Harman Kardon Active Sound Design Unit 9390396
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BMW F10 F11 On Board Display Central Information Screen Monitor 10" 9243897
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Audi A6 C6 Glow Plug Relay Unit Control Module Bosch 2.0 TDI 038907281B
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BMW E90 E91 LCI E92 330d Diesel N57 245HP Engine Control Unit ECU Kit CAS3 Key
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M-Audio Controller BMW E60 E61 E63 E64 Radio Player M-ASK CD Head Unit 6955346
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BMW E60 E90 E91 330i 530i N52 Engine ECU Kit DME 7559178 CAS2 + Key Automatic
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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 .