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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Mercedes Vito W447 Fuse Box Relay Control Unit Electric Module SAM A4479009609
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Wiring Harness Mercedes W176 A45 AMG Petrol M133 Low Temperature Pump Adapter
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Mercedes W205 W213 Door Module Front Left N/S Control Unit ECU A1679002718
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BMW F32 GPS Navigation Display Screen Android Auto CarPlay 10,25"
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Head Unit Mercedes W167 W177 Audio Stereo Radio Player Control Unit A1679001414
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Mercedes Vito W447 Head Unit Radio DAB Navigation GPS Nav Display A4479005517
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BMW E60 LCI E90 325d 525d M57N2 197HP Engine ECU Unit DDE 7809941 Automatic
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Volkswagen Golf 5 2.0 TDI Engine Control Unit ECU Manual 03G906016HJ
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Fuse Box Mercedes W204 Rear SAM Relay Fuse Box Control Module A2049000902
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Mercedes Vito W447 Fuse Box Relay Control Unit Electric Module SAM A4479005807
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Mercedes Vito W447 Diesel Adblue Module Control Unit ECU A0009007009
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PDC Module BMW F15 F16 F25 F26 I01 I12 Parking Distance Sensor Unit 6828085
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Mercedes W210 E240 112.911 170HP Engine ECU Kit A0265456532 Automatic Key Lock
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Land Rover Freelander 2 2.2 Diesel DOHC Engine ECU Module 6G9112A650AE Manual
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Mercedes W906 311 CDI 646.985 109HP Engine Unit Module ECU A6461500477 Manual
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Mercedes W213 C238 Tyre Pressure Monitor Sensor Module Unit TPMS ECU A0009002013
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Ford Transit Connect 1.8 TDCi Engine Control ECU Module Manual AT1112A650BD
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BMW X5 E70 CAS3 Control Unit Key Reading Module 6943833
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BMW X3 F25 N47N Diesel Engine Wiring Loom Harness Cable 8513414
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Mercedes W205 C200 274.920 184HP Engine ECU Kit A2749000800 Key Lock Automatic
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Mercedes W205 Park Parking Assist PDC Distance Control Unit Module A0009003806
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Bluetooth Module Mercedes W176 W205 Multimedia Control Unit ECU A2229005315
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BMW F40 F45 X1 F48 Mini F55 F56 F57 F60 Diesel Engine Starter Motor 8580389
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Mercedes SLK R172 Relay Fuse Box Control Unit A1725400950
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Mercedes C219 Rear Bumper PDC Wiring Parking Sensor Loom Harness A2195404605
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Mercedes C219 Coupe Front Bumper Parking Sensor PDC Wiring Harness A2195404505
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BMW 3 6 X3 Series E46 E63 E83 MINI R50 R53 Control Unit Xenon Light 1307329074
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Mercedes C219 Gearbox Electronic Control Unit Module A2115406445
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Control Unit BMW F20 F21 F22 F30 F31 F32 ICM Module ECU 6879834
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Mercedes W211 Central Gateway Module Control Unit A2115405645
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BMW E39 Audio Amplifier Radio Sound System Hifi AMP Control Module 8362444
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MINI Cooper One D R55 R56 Alternator Generator Diesel 150A 7794970
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BMW E60 E61 E87 LCI E81 E82 X1 E84 E90 E91 N47 Diesel Starter Motor 7798006
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Air Module Mercedes W210 SRS Control Unit ECU Control Module A0028203226
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Mercedes W205 W213 Fuse Box Rear SAM Module Electrical Unit A2139068801
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BMW E38 Radio Business RDS Cassette Audio Player Head Unit 8379279
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Mercedes ML W164 W251 Air Module SRS Control Unit ECU A1648207426
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Mercedes ML W164 Front Fuse Box SAM Relay Control Unit Module A1645400072
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Mercedes ML W164 Transfer Case Box Module Control Unit ECU A1645408662
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Mercedes W211 Front Fuse Box SAM SRB Module Relay Control Unit A2115455232
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Mercedes C117 W176 W246 Fuse Box Power Distribution Box A2465400950
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BMW E38 Basic Body Control Unit Module General Junction Box ECU GM III 8378633
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Mercedes W176 W246 200 CDI 651.930 136HP Engine Unit ECU A6519009702 Manual
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Radio Professional BMW F30 F31 F32 CD Bluetooth Player 9290989
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BMW E81 E90 LCI Business System Car Infotaiment Computer CIC 9239323
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PDC Module BMW E38 Parking Assist Distance Control Module Unit ECU PDC 8372271
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Alternator Generator Mercedes Sprinter W906 Engine Diesel 180A 14V A0009068802
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BMW E38 Headlight Light Check Module Control Unit ECU Lear LCM II 8372875
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BMW E38 Earth Cable Battery Engine Electrical Cable Wiring 1436907 1436908
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BMW F20 F21 F30 F31 F32 Body Control Comfort Module Unit FEM ECU LR01 9348362
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BMW E46 GM V Body Control Unit Module Junction Box 6907657
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BMW E39 E46 Active Parking System Control Module Unit ECU PDC 6904023
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Alternator Mercedes Sprinter W906 Vito W636 W639 Diesel 180A Valeo A0009068802
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Engine Wiring BMW F10 F11 520d N47N Diesel Loom Harness Cable 7823648
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Door Module W205 Rear Right O/S Door Control Unit Module ECU A2059006413
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BMW F10 F11 Front Bumper PDC Wiring Loom Electrical Cable Harness 9240226
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Alternator Mercedes R172 SLC 43 AMG Petrol OM276 200A Valeo A0009068806
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Alternator Mercedes W212 S212 Diesel OM651 Alternator 220A Valeo A0009063705
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Mercedes Sprinter W907 Parking Control Unit Module Sensor Parktronic A0009002720
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Volkswagen VW Passat B6 Fuse Box Relay Electrical Module Unit 3C0937125
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BMW E90 E91 320d N47 Engine Control Unit Module ECU Kit DDE 7811700 CAS3 Key
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Head Unit Mercedes CL203 CLC CD Player Radio Audio Telephone Unit A2039000100
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Glow Plug Relay Mercedes W177 Diesel OM654 Preglow Module A6549009900
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Alternator BMW G11 G12 LCI G20 G21 G30 G31 Alternator 250A Denso 8634167
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BMW F30 On-Board Screen 8,8" Android Infotainment System F30_NBT
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Mercedes W205 X253 Wiring Cable Harness Center Console A2054403008
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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 .