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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Renault Trafic F83 F9Q 760 Engine Control Module ECU 8200546983 Manual
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Mini Cooper R50 1.6 W10 116HP Engine ECU Kit DME 7557395 + EWS + Key Manual
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Mini R56 Head Unit CCC Navigation Navi Sat Nav Controller R55 R57 9159045
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Mini R50 Battery Cable Positive Plus Pole Wiring W17 Diesel 6942505
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Engine Wiring BMW F20 F30 LCI 118d 318d B47 Loom Harness Cable 8516259
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Nissan Quashqai M9R Diesel Engine Control ECU Manual Gearbox 23710 JD78E
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Renault Master 2 Opel Vauxhall Movano A 2.5 DCI Engine Starter Motor 7711134330
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BMW 5 6 Series E60 M5 E63 M6 Rear Right O/S Brake Disc Protection Plate 6754630
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BMW E87 LCI E90 118i 318i Petrol ECU Engine Control Kit N43 DME 7579142 CAS3 Key
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Volkswagen Tiguan 5N Engine Starter Motor 02M911024C
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Alternator Mercedes ML W164 GL X164 Diesel OM629 Bosch 14V 220A A6291500450
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Body Control Module BMW X5 E70 ECU Junction Box LOW PL4 JBBFEII 2 9138471
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Audi Q3 8U Camera Module Rear View Parking Camera Control Unit 8U0907441
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Audi Q5 FY Front Windscreen Windshield Lane Assist Camera 80A907217A
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Mini Cooper R50 R52 R53 6-Disc CD Changer Unit Module With Magazine 6977767
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Mercedes W639 W906 Battery Terminal Fuse Box Control Unit Module A6385454440
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Mercedes W207 W212 SAM Module Fuse Box Relay Control Unit A2129006924
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Mercedes W221 Rear View Reversing Camera Control Unit Module A1645430062
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MINI Cooper S R55 R56 LCI R60 Alternator Generator 150A Petrol 7604782
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BMW E90 E91 LCI N47N 318d 143HP Engine Control Unit ECU DDE 8510832 Manual
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BMW X3 M F97 X4 M F98 S58 Actuator Drive Exhaust Flap Motor 8746829
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BMW E81 E87 LCI E90 E91 120d 320d Diesel N47 ECU Kit DDE 7810000 CAS3 + Key
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Audi A6 C6 Parking Brake Handbrake Module Control Unit 4F0907801A
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BMW G11 G12 G20 G21 G30 G31 F33 F36 Generator Alternator 180A Bosch 8571357
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BMW E63 Light Control Unit Module LCM LM II E6X LWR 9203081
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Mercedes W221 Rear Door Module Control Unit Left N/S ECU A0038207326
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BMW 3 5 7 X5 E38 E39 E46 E53 6-disc CD Changer Without Magazine 8377049
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Mini F54 F55 F56 F57 F60 Petrol B36 B38 B46 B48 Engine Starter Motor 7645979
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BMW E81 E88 E90 N43 118i 318i 143HP Engine Control ECU DME 7621178 Automatic
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Audi A5 8T Module Lane Assist Control Unit Rear Right O/S 8K0907566H
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BMW F34 GT Mini F55 F56 F60 Radio Remote Control Unit Receiver 434 MHZ 7928646
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BMW F10 F11 Front Bumper PDC Wiring Loom Electrical Cable Harness 9240226
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BMW F40 Ultrasonic Alarm System Module Control Unit 5A44586
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Audi Q5 8R 2.0 TDI CJCA Diesel Engine Alternator Generator 03G903016G
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Mercedes GLC C253 X253 Pedestrian Protection Pressure Crash Sensor A2539052100
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Alpine CHM-S630 6-disc Compact CD Changer Multichanger Digital Audio
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Alternator BMW F20 F21 F30 F31 F36 Petrol N55 Generator 210A 7616120
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BMW F80 M3 F82 F83 M4 S55 431HP Engine Unit Module ECU DME 8642252 Drivelogic
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BMW 7 Series E65 E66 Dashboard EXCH Control Display Screen 8,8" 6960096 9110639
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Reversing Camera Mercedes W166 Rear View Camera Trunk Lid Tailgate A1669059302
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Audi A5 8T Module Lane Assist Control Unit Rear Left N/S 8K0907568H
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Mercedes W447 OM622 Diesel Engine Alternator Generator A0009064022
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Alternator Volkswagen LT35 2.5 TDI Diesel Engine Alternator 90A Bosch 074903025K
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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 .