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 X5 Series E53 Onboard Computer System Monitor Cassette Player 8378943
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Head-Up Display BMW F90 M5 G30 Hud Project Dash Screen Control Module 8784916
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Injection Wiring BMW F90 M5 F91 M8 S63M Cyl. 5-8 Loom Valve Ignition 7856775
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BMW F20 F21 118d N47N 143HP Engine ECU Kit DDE 8517874 + Key + FEM + Lock Manual
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Volkswagen New Beetle PDC Parking Assistant Module Control Unit 1J0919283A
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Hall Sensor BMW E93 Convertible Trunk Boot Control Unit Module 6958127
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Volkswagen Polo 6R Engine Wiring Loom Harness 03E971612AD
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Mercedes W169 W245 A180 B180 CDI Engine Control Module A6401507934 Automatic
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Citroen Dispatch Jumpy III 9HM DV6UC 1.6 Diesel Engine Module ECU 9807885980
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Mercedes CL S Class C215 W220 Fuse Box Unit Front Right O/S ECU A2205401124
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Planet Audio AC800.4 4 Channel Car Amplifier Anarchy Model 800 Watts
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BMW X1 E84 18dX Diesel N47N Engine Unit ECU Kit DDE 8574351 CAS3 Key Automatic
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Mini Cooper R50 PDC Ultrasonic Parking Sensor Cool Blue Metallic A27
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Renault Trafic III Vauxhall Vivaro B Relay 4-Pin Blue Electrical Unit 252300973R
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Audi A7 4G Rear Reversing Camera Module View Camera Control Unit ECU 4G0907441B
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Mercedes Vito W447 Door Module Front Right O/S Control Unit ECU A4479008006
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BMW 7 E65 E66 Rear Bumper PDC Ultrasonic Sensor Schiefergruen Slate Green 449
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Audi Q7 4L CD Player Changer Multimedia Module Control Unit 4L0910110B
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BMW E46 Saloon Petrol Positive Battery Cable Plus Pole Lead Wiring 8373945
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BMW 3 5 X3 Series E46 E60 E65 E83 5 M54 Petrol Engine Starter Motor 2354693
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BMW 5 X3 Series E60 E61 E83 Front PDC Parking Distance Sensor Amethystgrau Grey
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Audi TT Mk3 8S 2.0 TDI CUNA 184HP Engine Control Unit ECU 04L907309A Manual
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Gateway Module Audi A3 8P Volkswagen Tiguan Central Control Unit ECU 7N0907530J
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Mini Cooper D R55 R56 Diesel W16 1.6 109HP ECU Kit DDE 7806350 CAS3 + Key Manual
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Alternator Generator Mercedes W204 W211 OM646 Diesel Bosch 180A A0131549002
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Mercedes W204 Navigation CD Player COMAND Radio Sat Nav Head Unit A2049005903
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Navigation Monitor Screen BMW E60 E90 On-board Information Display 6,5" 6945661
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BMW E81 E82 E83 E84 E85 E87 E90 Petrol Denso Starter Motor 7524843
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BMW F10 F12 F13 M5 M6 S63N 560HP ECU Control Unit Module DDE 7633959 Twin-Clutch
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Head Unit Mercedes W213 C238 Radio Navigation Media Player Unit A2139004316
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Alternator Generator Mini Cooper R55 R56 R57 R57 R58 LCI Petrol 7574365
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LION AGM Start Stop Plus Accumulator Battery 95Ah 850A 12V
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Mercedes Sprinter W907 311 CDI 651.958 114HP ECU Kit A6519007103 Key BCM Lock
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VDC Module BMW F01 F07 F10 F11 F12 Rear Suspension Level Control Unit 6866454
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BMW 5 Series E60 E61 E63 Airbag ECU Control Unit Gateway Module 6943089
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High Voltage Inverter BMW i3 I01 Electric 60Ah Electrical Machine Electronics
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Mercedes W907 W910 Telematics Communication Control Unit Module A2479004315
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BMW E87 E90 CCC CD Professional Navigation System Controller 9133776
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Peugeot 207 CD Player Radio Stereo Head Unit 96643697XT00
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MINI Cooper S R53 W11 170HP Engine ECU Kit DME 7527610 + EWS + Key Manual
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Powerplus 12V AGM Accumulator Battery 95Ah 900A
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Audi A4 RS4 B8 Music Stereo Radio CD Player Head Unit 8R2035670H
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Ford Transit Connect MK1 Focus MK1 Engine Alternator Generator 2T1U-10300-CG
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Mercedes C118 W177 W247 Body Comfort Control Module Unit BCM V2 A2479004518
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Mini Cooper S R52 R53 W11 Petrol Engine ECU Kit DME 7542310 Keys EWS Manual
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BMW E87 E90 E91 120i 320i N46 150HP Engine ECU Kit DME 7565300 CAS3 Key Manual
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BMW 7 Series E65 Airbag ECU Control Unit Gateway Module 9130203
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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 .