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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Central Gateway BMW X3 F25 X4 F26 Module Control Unit Lear ZGW-02 4SK 9299594
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BMW E60 E63 LCI E65 Light Control Module LCM LM2 LMII E6X LWR
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Air Control Module BMW E60 E61 E63 Passenger Side Door Unit 6963016
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Audi Q7 4L Tow Bar Trailer Towing Control Module Unit 4E0907383E
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Mercedes W204 C350 CDI OM642.830 Engine Module ECU Kit A6429002900 Keys Lock
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Mercedes C207 Stereo Radio CD Player Head Unit A2129004008
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Baterry Cable Bracket BMW X3M F97 X4M F98 S58 Alternator Wire Holder 8091664
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Door Module Mercedes C118 W177 H243 Front Left N/S Door Control A1779005409
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Mercedes ML W164 Audio 20 Stereo Radio CD Head Unit Player A1648209289
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BMW X1 E84 18dX Diesel N47N Engine Unit ECU Kit DDE 8574351 CAS3 Key Automatic
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Mercedes W203 C200 Kompressor M271.940 163HP Engine ECU A2711534691 Automatic
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KIA CEED I 1.6 CRDI Diesel Engine Control Module ECU 39120-2A051 Manual
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Peugeot 3008 Radio CD Player Stereo Head Unit 9666967477
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Lexus IS200 d 2AD-FHV Diesel Engine Control Unit Module ECU Manual 8966153M50
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Mercedes-Benz M ML W163 Battery Positive Plus Terminal Lead Cable A1635401630
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Mercedes A238 SAM Control Module Unit ECU A2139008123
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Audi RS3 8V PDC Parking Distance Control Sensor Module Unit ECU 5Q0919294K
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VAG VW Volkswagen Audi Seat Skoda Relay Unit 4 Pins 12V 40A 191937503
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Audi A5 8T 3.0 TDI CCWA 240HP Engine ECU Kit 8K0907401 Ignition + Key Automatic
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Audi A3 8V Air Module Control Sensor SRS System ECU Unit 5Q0959655BT
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Fiat Doblo 1.6 Diesel Alternator Generator Denso 120A 14V 51854902
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Citroen Berlingo Peugeot Partner Battery Terminal Earth Cable Wiring 9676811780
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BMW 1 2 3 4 Series F20 F21 F22 F30 F31 F32 F36 Module Control Unit FEM 9290799
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Audi TT FV Central Gateway Control Unit Module ECU 8S0907468B
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Starter Motor Renault Trafic II Opel Vivaro A Diesel 2.5 dCi 8200106788
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Mercedes R171 Door Control Module Front Left N/S A1718206126
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BMW G30 Dashboard Central Information Display 10,25" On Board Monitor 8801702
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Audi A3 8V 2.0 TFSI DJHA Starter Motor 12V 02E911024M
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Audi A4 B6 Headlight Headlamp Range Control Unit Module 4Z7907357
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Audi A6 C7 3.0 TDI Quattro CLAA 204 HP Engine Control ECU 4G0907311E Automatic
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Mercedes W204 Multifunction Display LCD Screen GPS Navi Unit A2048204797
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BMW F20 F30 F32 120d 320d 420d Diesel N47N 184HP ECU Kit DDE 8573257 + Key + FEM
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BMW E60 E90 Dashboard Dash Onboard Display Monitor Screen Display 8.8" CCC
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BMW E60 E87 E90 CAS 3 ECU Control Unit Key Reading Module 9147221
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Wiring Harness Mercedes W203 M271 Kompressor Petrol Engine Camshaft A2711502733
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BMW E61 Body Control Module Unit ECU BCM KBM High 6957529
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Head Unit Mercedes W167 W177 Audio Stereo Radio Player Control Unit A1679001414
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Audi A3 8P Convertible Folding Roof Module Control Unit ECU 8P7959255
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BMW X3 G01 Fuse Relay Box Control Unit ECU 6828076 8795477
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Mercedes Sprinter W907 W910 Body Control Module ECU A9079007404
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BMW X3 F25 X4 F26 Navigation Sat Nav Radio Audio Head Unit 9282043
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Mini Countryman R60 Cable Set EPS Power Steering Wiring Harness 9807894
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Porsche Macan 95B Rear View Camera Control Unit 95B980551L
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Mini Cooper S R60 N18 184 HP Engine Control Unit Module DME 8621260 Manual
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Audi A6 C6 Front Windscreen Rain Light Solar Sensor Unit 8K0955559D
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Headlight Control Unit BMW F30 F31 LCI Module FLE2 7434273
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Ford Transit MK8 Radio Stereo Audio USB Head Unit Panel BK3D-18D815-BE
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Mercedes W176 A180 CDI OM607.951 109HP Engine ECU A6079001800 Automatic
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Airbag Module Citroen Relay Fiat Ducato Air Bag Control Unit ECU 01375110080
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Skoda Octavia 3 5E Front Bumper Wiring Harness Loom 5E0971095CN
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Mercedes Vaneo W414 Front Left Right Door N/O/S Control Unit Module A4148200526
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BMW 1 3 E87 E90 E91 M47N2 Engine Injector Module Wiring Harness Cable 7804722
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Mercedes W168 W203 W209 Audio Sound System Amplifier Unit A1698208089
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Mini Cooper R50 R53 VICS Receiver Control Unit Module Japan 6916228
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BMW F20 F30 F32 120d 320d 420d 184HP N47N Engine ECU Kit DDE 8582155 FEM Key
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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 .