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 7 Series E65 E66 E67 Telephone Navigation Adapter 6938360
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Seat Ibiza IV VW Polo 6R Fabia 5J 1.2 TDI Diesel Engine Starter Motor 02Z911024H
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Mini Cooper R57 PL3 SPEG H4 Fuse Distribution Box 3455533
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Audi A1 S1 8X Fuse Box Relay Top Upper Cover Cap Flap 6C0937132C
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Audi A6 C7 3.0 TDI CLAA Alternator Generator Engine Unit Hitachi 059903018R
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Audi A4 B8 A5 8T A6 C7 Q5 8R Fuse Box Relay Module Connector Plug 8K0937501
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Porsche Boxster 986 Fuel Pump Relay Control 12V 15A 99661510100
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Audi Q2 GA Rear Centre Loudspeaker Subwoofer 81A035382
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Audi Q7 4M Rear Boot Lid Tailgate Opening Module Cable Wiring Line 4M8962239
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Audi S7 4G8 Front Lamp Headlight Level Sensor 3C0907503
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Volkswagen Tiguan 5N Golf Mk5 Alternator Generator Diesel Power 03L903024M
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BMW X3 F25 Body Control Module ECU Junction Box JBBFE III 3 V9 Lear 9305712
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BMW 3 Series E91 ECU Body Control Module Unit H2 61359226331 9226331
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Mercedes W205 Air Module Control Unit SRS ECU A2059002141
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Mercedes C204 Wiring Cable Harness Front Driver Door Wiring Loom A2044400538
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Fuel Pump Module VW Volkswagen Sharan 7N Fuel Sender Control Unit ECU 7N0906093
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Alternator Generator Mercedes W177 W247 M260 Petrol Engine 150A A0009068106
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Mini Cooper One R50 R53 Body Control Unit Basic Module BCM 6922801
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BMW X5 Series E53 Wheel Electronics Module RDC 433MHz Control Unit 6752128
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Autoradio BMW X3 E83 Z4 E85 E86 Radio Business CD Player Control Unit 9146710
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BMW 1 3 X1 X3 E83 E84 E87 E90 E91 N45 N46 Petrol Enigne Starter Motor 1,1 kW
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BMW 3 F30 LCI 330e B48X Hybrid High Voltage EKMV Wiring Cable Wire 6824109
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Mini Cooper R56 N12 1.6 120HP ECU Kit Engine DME 7640005 + CAS3 + Keys Manual
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Peugeot Boxer Citroen Relay Engine Starter Motor Diesel Valeo 9646972280
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Mercedes W639 W906 Battery Terminal Fuse Box Control Unit Module A6385454440
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BMW Z4 Series E85 Roadster Driver Side Door Cable Harness Wiring 6934607
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BMW X5 X6 E70 E71 Control Unit Module Top Rear Side View Camera 9220695
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BMW X3 E83 LCI Fuse Box Grouping Map Diagram Location 3428544
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BMW 1 Series E82 Rear Bumper PDC Cables Wiring Loom Set 0396890
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Cable BMW E39 Petrol Engine M52 Alternator Starter Cable Wire B+ 7503505
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Mini One R56 LCI R60 N16 98HP Engine Control Unit ECU DME 7619335 Manual
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Seat Ibiza IV Multimedia Radio Sat Nav CD Player Head Unit 5QA035858A
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Mini Cooper D F55 F56 B37 Engine Injector Wiring Harness Cable Loom 8518411
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Mercedes W221 Antenna Amplifier Control Unit Module A2218208089
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Mercedes W212 Rain Light Solar Condensation Sensor Control Unit A2049014503
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Wiring BMW F21 F30 F34 F36 Diesel N47N Engine Gearbox Module Harness 8585727
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Ford Transit Custom Mk1 Alternator Generator 150A 2.2 TDCi Diesel CC1T-10300-BE
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Mini One R55 R56 N12 1.4 95HP Petrol ECU Kit DME 7640005 CAS3 + Key Manual
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Chrysler Grand Voyager Automatic Gearbox Control Module Unit ECU P04727535AC
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Mercedes ML W164 Rear Control Unit Module Fuse Box SAM A1645401801
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BMW E60 IBS Negative Battery Lead Cable Connector 6944687
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BMW E81 E90 LCI Business System Car Infotaiment Computer CIC 9263948
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Audi A5 8T Seat Cable Front Left Right N/O/S Wiring Loom Harness 8T0971365C
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Audi A4 A5 A6 Q5 Q7 Radio Control Head Unit Harman Becker 4F0035053B
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Mercedes W176 W204 C207 C218 W246 Fuel Pump Control Module A0009001803
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Mercedes W204 Fuse Box Grouping Fuse Placement Map Card Diagram A2045842982
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Volkswagen Touareg 7L Display Screen Multimedia Navigation Unit 7L6035177E
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Chrysler Grand Voyager Diesel Engine 2.8 CRD Starter Motor 04868860AA
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BMW E87 LCI E90 E91 N43 116i 316i 122HP Engine Unit ECU DME 7599881 Manual
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Air Module BMW F20 F21 F30 F31 Control Unit 6826984 0285013630
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Audi A5 8T 3.0 TDI CCWA Diesel Alternator 059903016J
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BMW F20 F21 LCI Antenna Amplifier Diversity 9226884
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Mini Cooper R50 R53 Rear Battery Hold Down Strap Retaining Bracket 6917738
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Audi A6 C7 Gateway Interface Electrical Control Unit Module ECU 4G5907468K
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VW Volkswagen Audi Glow Plug Relay Unit Bosch 11 Pins 4E0907282A 0281003029
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Mercedes C118 C205 C253 Automatic Gearbox Control Unit Module ECU A0009008324
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Mercedes W166 Headlight Lamp LED Control Module Left Right N/O/S A2189009203
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Audi A6 C6 Parking Control Unit ECU Module Sensor PDC 4L0919283B
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Audi Q3 8U Air Module Crash Impact Sensor Control Unit 8U0959651
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Citroen Relay Peugeot Boxer Fuse Relay Electrical Box Housing Cover 1308204070
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Mini Cooper F55 F56 F60 Windscreen Rain Light Solar Sensor Control Unit 9877611
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BMW F11 Control Unit Rear Tailgate Boot Lid Function Module ECU 7333939
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Mercedes C118 W177 W247 Battery Box Tray Trim Housing Cover A2475411000
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Relay Mercedes W124 E280 Petrol Fuel Pump Cut Off Relay A0035452405
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BMW F20 F30 116i 316i N13 Engine Control Unit Module ECU DME 8625241 Automatic
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Mercedes-Benz C CLK Class W203 C209 ESP Yaw Rotation Rate Sensor A2095420018
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Headlight Ballast Control BMW F06 F12 F13 F15 F16 LED Adaptive Module 7316210
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Audi A4 B8 PDC Assistance Parking Distance Control Module Unit ECU 8K0919475J
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MINI Cooper One R50 R52 Petrol W10 Alternator Generator 110A 7550997 7550319
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Mercedes-Benz C CLK Class W203 C209 ESP Yaw Rotation Rate Sensor A0045420418
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Battery Cable Mercedes W169 W211 Negative Lead Wiring Pole Harness A1665420318
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Audi A3 8P Control Unit Gateway Module ECU 8P0907530C
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Audi A3 8P Body Control Comfort Unit Module BCM Convenience Unit 8P0959433
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Audi Q5 FY Gateway Control Module Unit ECU 8W5907468F
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Ford Mondeo Mk4 Alternator Bracket 2.0 TDCi Mount Support AG9Q-10K019-AB
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Air Module Sensor BMW Z4 E64 E85 B Pillar Right O/S 6962888
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GM Vauxhall Opel Relay 4-Pin Multi Use Glow Plug Unit Green 03447012
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Mercedes W176 W246 Radio COMAND Nav CD Player Control Head Unit A2469003519
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Mercedes W221 Telephone Bluetooth Control Module A2218708685
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Mercedes W205 Multi-Purpose Windscreen Camera Control Unit Module A2479006804
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Seat Module Mercedes W205 W253 Memory Control Unit Driver's Side A2059005122
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Mercedes W203 W221 Wind Screen Wind Shield Rain Sensor Unit A2218708826
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Ford Focus Mk3 BCM Body Control Module Fuse Box Electrical Unit DV6T-14A073-HJ
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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 .