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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Starter Motor Audi Q7 4L VW Touareg MK2 3.0 TDI Diesel Starter 059911024K
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BMW F20 F21 VeeHive CCC Android Apple CarPlay Retrofit Unit Module Cables
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BMW Mini Cooper R50 R53 6-Disc CD Changer Multichanger Without Magazine 6946989
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BMW E64 Air Module ECU Control Unit Centre Vehicle Sensor 6976466
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Mercedes W639 Automatic Gearbox Control Unit Module ECU A0005458416
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Radio Head Unit Mercedes C207 W212 COMAND Navi CD Player Navigation A2129005627
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BMW F20 F21 116i F30 316i N13 136HP Engine Control Unit ECU DME 8610484 Key FEM
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BMW X5 E60 E61 E65 E70 Longitudinal Seat Adjusment Drive Motor
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Mercedes W212 VDO Transmission Control Unit Module EGS A0015452716
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Alternator BMW X3 E46 X5 E53 E85 Diesel Generator 150A 7797660
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Mercedes AGM Accumulator Battery 70Ah 720A 12V Varta A0019828008
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Mercedes W204 Navigation CD Player Radio Stereo Sat Nav Head Unit A2049006009
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Radio Player Mini Cooper One R55 R56 CD Audio Player Head Unit 3454566
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BMW X3 Series E83 2.5si N52N 218HP Engine ECU Kit DME + Key 7576670 Manual
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BMW 3 5 Series E60 E90 330d 530d M57N2 ECU Engine Kit DDE 7801712 CAS2 Key
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Porsche Macan 95B Body Gateway Module ECU Control Unit 95B907530L
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Audi A3 S3 8V Parking Assist PDC Control Module 5QA919283
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BMW E46 Convertible Rollover Sensor Control Unit Module 8385223
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BMW 5 Series E60 E61 LCI Battery Cable Lead Positive Underfloor 9176953
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BMW E46 Positive Battery Cable Plus Pole Lead 6910597
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Mercedes W211 Battery Load Control Module Relay A2115404245
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BMW E60 E90 E91 LCI 330i 530i N53 272HP ECU Kit DME 7616431 CAS3 + Key Automatic
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BMW F10 Body Control Module ECU Unit Junction Box PL6 JBBFE III V2 6955801
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M-Audio Controller BMW E60 E61 E63 Radio Player M-ASK CD Professional 6965044
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Jaguar XF Range Rover Sport L320 Radio CD Player Sat Nav Head Unit CF6N18C815HC
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Renault Trafic 3 Vauxhall Vivaro B 1.6 DCI Alternator Bracket Mount 117105124R
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BMW F20 F21 F30 F31 118d 318d 143HP N47N ECU Kit DDE 8576341 + Key + FEM
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Mercedes W164 W251 Fuse Box Relay Module Control Unit A1645403772
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Renault Laguna 3 III USDM-PTF USM Fuse Box Control Unit Module ECU 284B60012R
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BMW E81 E82 E87 LCI E88 N47S 123d ECU Kit DDE 7812502 + CAS3 + Key Manual
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BMW X3 Z4 Series E83 E85 E86 Radio Business CD Player 9197127 9205279
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Mercedes R171 Module Safety Airbag SRC Sensor Control Module Unit A1718202426
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BMW 3 F30 LCI 330e Hybrid KLE Convenience Charging Control Unit ECU 8674691
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Mini Cooper R55 R56 R57 CCC CD Navigation Sat Nav Head Unit 9170730
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Audi A4 B8 8K A5 8T Sound System Audio Amplifier Amp Unit 8T0035223AB
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Audi Q7 4L Sat Navi Navigation Drive Reader DVD Player Unit 4E0919887D
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Audi A7 4G8 Sportback Rear Spoiler Adjustment Tailgate Control Unit 4G8959252A
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BMW 1 3 5 Series E87 LCI E90 E60 Hands Free Bluetooth Module High MULF2 9178898
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BMW X5 E70 Body Control Module Unit Junction Box PL4 JBBFEIII R ECU 9292707
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Ford Transit Connect 1.8 TDCi Battery Positive Cable Clamp Wiring 2T1T14A280CG
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Mercedes W212 Air Suspension Level Control Unit Module Airmatic A2129003701
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Mercedes Vito W639 Wiring Harness Rear Boot Trunk Lid Tailgate Loom A6394405109
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Radio CD BMW X3 E83 Z4 E85 E86 Business Player Control Unit Module 6932428
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Citroen Relay III Stereo Radio Head Unit 7357588720
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Mercedes W212 Rear Suspension Level Sensor Wiring Loom Cable Harness A2125402705
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Volkswagen Golf Mk7 Seat Leon 5F Battery Wire Negative Earth Lead 5Q0971250T
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BMW F20 F21 116d N47N 116HP Engine ECU Kit DDE 8570933 Key Lock FEM Manual
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Audi A1 8X Engine Control Unit Module ECU 1.4 TSI CAXA 122HP03C906016BG
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BMW E60 LCI E90 335d 535d M57N2 286HP Engine ECU Kit Unit DDE 7805287 CAS3 Key
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BMW 5 X5 7 SERIES E60 E60N E61 E65 E66 E67 E70 Drive Longitudinal Seat Adjust
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Fuse Box Mercedes ML W164 Relay Module Front Control Unit Module A1645400672
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Renault Clio Alternator Mount Bracket Holder Carrier 8200663057
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Head Unit BMW F90 G30 Navigation Audio Player Controller Module 5A060E1
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BMW 7 Series E65 E66 On-board Navigation Display Monitor Screen 8,8" 6923811
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Mercedes W205 220d BlueTec 651.921 170HP Engine Control Unit ECU A6519000603
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Porsche Macan 95B Headlight Control Module Unit Hella 7PP907357L
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Alternator Generator Mercedes W176 W246 OM651 Diesel Engine 175A A0009063322
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VW Golf 8 1.5 eTSI HV Battery Positive Terminal Harness Cable Wiring 5WA971794R
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BMW E90 E91 LCI E92 330d Diesel N57 245HP ECU Engine Kit DDE 8510221 CAS3 + Key
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BMW 5 6 Series E60 E63 545i 645Ci N62 Engine ECU KIT DME 7540510 + CAS2 + Key
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BMW E60 LCI Radio Player Audio System Controller Head Unit 9195756
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BMW E81 E82 E87 E88 Boardmonitor Central Information Display Screen 9145437
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Alternator Audi A6 C6 3.0 TDI Diesel Engine Generator 059903015R 1068673
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Audi A3 8P 2.0 TDI 170HP BMN Engine Control Module Unit ECU 03G906018DN Manual
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Audi Q2 GA Wireless Charger Centre Console Phone Charging Module Unit 4N0035502B
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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 .