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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Airbag Module Mercedes W169 W245 Air Bag Sensor Control Unit ECU A1698207826
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Audi S6 C6 Steering Column Wiper Switch Stalk Cruize Control 4F0953549A
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BMW Z4 Series E89 ECU Body Control Module H4 Electronic Box 61359329799 9329799
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SAM Module Mercedes W203 Fuse Box Control Unit Relay A2035453501
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BMW E46 Rear Antenna Aerial Amplifier AM/FM 6912824
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Nissan Qashqai Renault Megane II Dacia Duster dCi Engine Alternator 820072829
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Mercedes Sprinter W906 Fuse Prefuse Box Relay Electrical Unit A0045450201
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Audi A6 C6 Parking Brake Handbrake Module Control Unit 4F0907801A
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Mercedes W204 W212 W222 Auxiliary Additional Generator Battery A0009827008
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Body Control Module Mercedes Sprinter W907 W910 SAM BCM Unit ECU A9079000704
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Mercedes W205 Radio Audio Navi GPS Head Unit A2059007815
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Mercedes W156 W242 W246 W447 Relay 4-Pin Black Hella A0009822523
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Mercedes-Benz A W168 CDI Battery Terminal Positive Cable Wiring A1685401130
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Nissan Qashqai J10 Renault Koleos 2.0 dCi Engine Alternator 23100JD71A
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Mercedes W906 Distributor Box Battery Cable Unit A0035464240
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BMW F30 F31 F32 Control Unit Module Active Sound Design 6820696
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Display Screen Citroen Berlingo Peugeot Partner Dashboard Monitor 9803399680
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BMW X3 F25 Sat Navi Radio CD Player Head Unit 9294196
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Audi A3 8V Cabrio Folding Top Roof ECU Module Control Unit 8V7959255
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BMW 3 X1 F30 LCI F48 Telematics Telephone Control Module ATM ECE 3G 6809306
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BMW 1 3 5 F10 F20 F30 Can Bus Interface Data Terminating Resistor 586509
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BMW 3 Series 1 E90 E90N E91 E91N LCI Wiring Loom Set PDC Rear Set Complete
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VW Volkswagen Touareg 7L Front Bumper PDC Parking Sensor Wire Harness 7L6971095G
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Mercedes-Benz E-Class W210 Battery Positive Plus Cable Loom Harness A2105401830
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Audio Amplifier BMW F20 F21 LCI Mini F56 Top Hifi Harman Kardon Unit 6836346
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Ford Fiesta MK7 Body Control Module BCM Control Unit ECU 8V5115K600EG
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Battery Cable Mercedes W176 W246 Positive Wiring Starter Harness A2465408032
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BMW E87 E90 E60 120d 320d 520d M47N2 163HP Engine Unit ECU DDE 7803373 Manual
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Pedestrian Protection Sensor BMW F10 F11 Front Bumper Crash Impact Unit 9261962
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Audi A3 8P Volkswagen Touran Mk1 Skoda Yeti Engine Fuse Box 2.0 TDI 1K0937125D
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Alternator Generator BMW F07 F10 F11 FN57N N57Z Diesel Engine Valeo 8570673
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Land Rover Freelander 2 2.2 Diesel DOHC Engine ECU Module 6G9112A650AE Manual
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VW Volkswagen Golf 5 Radio CD Player Stereo Head Unit 1K0035186AD
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Audi A7 4G Q7 4L 3.0 TDI Glow Plug Pre Heat 651 Relay Unit 9 Pins 4L0907282A
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Mercedes W124 S124 Central Lock Control Unit Module A1248205926
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Radio BMW E81 E87 E90 E91 E92 LCI CD Professional DAB 9246503
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BMW F20 F30 LCI 120d 320d ed B47 163HP Engine ECU Unit DDE 8591073 Manual
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BMW 1 3 Series E81 E87 E90 LCI Professional Navigation System Car Computer CIC
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BMW F20 F21 F30 F31 Fuel Pump Delivery Control Unit Module 7450992
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Mercedes-Benz C-Class S203 W203 Cable Rail Guide Sensors ABS A2035460180
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Radio Player Mercedes-Benz W204 COMAND Navi CD Head Unit A2048700594
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Audi A4 B7 Door Wiring Harness Loom Front Cabling 8E1971029AA
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Mini Cooper One R55 R55N LCI High PL SPEG H4 Fuse Distribution Box 3455436
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Mercedes W203 W209 Fuse Box Rear SAM Module Relay Control Unit A2035453801
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Centre Console Connector Mercedes W204 W207 USB Port Socket Trim A2078210411
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BMW F10 F20 F30 F31 Body Module Control Unit FEM 9303546
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BMW E87 ECU Body Control Module Junction Box PL2RR H2 9247472
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Bowden Cable Mercedes W906 Rear Sliding Door Opener Cable Wire A9067600404
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Audi Q3 8U A1 8X SD Card Map Pilot Navigation Europe 2013 8X0919884E
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BMW E87 LCI E90 Petrol N43 DME Engine Control Unit 7583225 Automatic
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BMW F30 LCI 330e Hybrid High Voltage Battery Electronics Unit 8661800
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Mini Cooper S R55 R56 N14 1.6 174HP ECU Kit DME 7587548 + CAS3 + Key Manual
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Navigation Head Unit BMW F10 F11 F31 Harman Sat Nav Unit 9290358
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Door Module Mercedes W169 W245 Control Unit Front Right O/S A1699000400
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Ford Fiesta MK7 Display Screen Multifunction Radio Dashboard 8A6118B955BL
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BMW F20 F21 F22 F30 F31 F32 F36 Module Control Unit FEM ECU LR01 9281829
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Mercedes W140 ABS Control Unit ASR + PML Module ECU A0185459132
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Starter Motor Mercedes W204 W212 OM651 Diesel Engine Bosch Starter A6519062400
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BMW E81 E87 LCI E90 120i 320i Petrol N43 170HP Engine ECU DME 7579142 Manual
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Mercedes W169 W211 W245 Sound Audio Amplifier Unit Harman Becker A2118703794
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BMW E87 LCI ECU Light Module Footwell NSW PL2 FRM II Lear 9153778
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BMW E90 E91 E92 330d M57N2 231HP Engine ECU KIT DDE 7809944 CAS + Key Automatic
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BMW F20 F21 F22 F30 F31 F32 F36 Body Control Module Electronic Unit FEM 8733499
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Mercedes Vito W639 111 CDI 646.982 109HP Engine ECU Kit A6461532891 Key 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 .