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 W221 Headlining Alarm Sensor Module Cover Trim Black A2219050018
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High Voltage Inverter BMW i3 I01 Hybrid 120Ah Rex Electrical Machine 8488548
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BMW F39 F45 Mini F56 F60 ICM Control Unit Air Bag Module SRS Airbag ECU 6842255
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Console Lightning Mercedes W212 Centre LED Selector Cable Wiring A2125409110
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Mercedes W168 A170 CDI 95HP OM668.942 Engine Control ECU Kit A0275454132 + Key
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BMW X3 E83 E46 E60 E61 E65 M54 Alternator Generator 150A 7521137
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BMW F80 M3 F82 F83 M4 431HP Engine Control ECU Kit DME 8672514 + FEM Module Key
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Ford Transit Mk6 Electrical Relay 6918816 Windscreen Wipers Fuse Red 6919113
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Ford Mondeo MK4 Galaxy MK3 1.8 TDCI Diesel Engine Starter Motor 6G9N11000EC
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Renault Trafic II Opel Vivaro A 2.0 DCI Alternator Generator 8200404459
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Mercedes W221 Front Door Control Left N/S Module Unit ECU A2219007301
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Ford Transit Mk8 2.2 TDCI Alternator Generator CC1T-10300-CD
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Mini Cooper One R52 Cabrio Body Control Unit Basic Module BCM 6946363
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Mercedes W221 Door Control Module Unit ECU Front Right O/S A0038206426
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Mercedes-Benz Vito W639 Front Left Door N/S Lock Bowden Pull Cable A6397600604
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BMW F10 Headlight Footwell Light Control Module Control Unit FRMIII 9313929
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Display BMW F20 F21 F22 Central Information Infotainment Screen 8,8" 9292246
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Audi A5 F5 Communication Telematics Emergency Control Module Unit ECU 4KE035282C
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BMW 3 E90 E91 E92 E93 330i N53 272HP ECU Kit DME CAS3 + Key 7583332 Automatic
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Mercedes-Benz W210 E 320 M112 Petrol Engine Control Unit Module ECU A1121530879
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Renault Scenic III 1.5 Dci Engine Alternator Generator 12V 120A 8200960533
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BMW X3 Z4 E83 E85 E86 Radio Business CD Player 65126939664 6939664
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Audi A4 B8 Radio Stereo CD Player Reader Head Unit MMI Multimedia 8R2035186F
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Radar Sensor Mercedes W213 C238 Front Collision Warning Module Unit A0009057011
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BMW 5 7 Series E60 E61 E65 E66 Front Driver Seat Angle Adjustment Drive 7075948
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Front Impact Sensor BMW F70 G05 G14 G15 U06 Safety Crash Module Unit 9496817
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Alternator Bracket Ford Transit Mk7 2.4 TDCi Mount Belt Tensioner 6C1010K019AC
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Audi A3 8P Gateway Module Control Unit Gateway Module ECU 8P0907530A
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Radio Professional BMW F30 F31 F32 CD Bluetooth Player 9290989
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Mercedes W213 C238 Front Collision Radar Sensor Control Unit Module A0009054603
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BMW G20 Battery Terminal Voltage Distribution Box 400W MID 6842527
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BMW 7 Series E65 E66 Passenger Seat Airbag Sensor Control Unit Module 6920480
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Glow Plug Relay Mercedes W213 C238 Diesel OM654 Preglow Module A6549001300
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Mercedes ML W164 PDC Module Parking Distance Control Unit Sensor A1645450216
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Mercedes W205 C200 274.920 184HP Engine Control Unit ECU A2749000800
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BMW 7 Series E65 Light Control Module Unit Lear LM E6X DYN. LWR (LCM) 6941588
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Mercedes GLE C292 ML W166 Door Control Module Rear Left N/S A1669006307
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Mercedes EQA H243 W247 Fuse Box Relay Control Unit Module A1779061302
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Energy Distributor Mercedes W204 OM656 Power Control Unit Module A0065454601
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BMW F20 F30 F31 LCI Earth Cable Battery Cable 8648003 12428648003
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Alternator Mercedes W164 W221 W251 Engine Generator 220A Valeo A0009063522
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Mercedes A209 Fuse Box SAM Control Module Relay Box A2095451701
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BMW E70 E71 F01 F02 F10 F11 F30 F31 Diesel Starter Motor NAPA 8581098
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VW Volkswagen LT 35 BBF 95HP Engine Control Unit Module ECU 074906018BD Manual
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Mercedes W166 Radio Head Unit CD Audio Player Control Unit A1669000621
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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 .