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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CD Player BMW E60 E61 E63 M-ASK M-Audio Radio System Controller 6965046
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Volkswagen VW Golf Mk6 1.6 TDI Alternator Cable Wiring Harness Loom 1K0971349GA
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BMW F20 F21 F22 F30 F31 N20 N26 N55 Petrol Engine Starter Motor 7638194
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BMW E46 Led Indicator Side Light Signal 7165845
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PDC Module BMW G01 G02 G20 G21 Park Assistance Control Unit 5A130F8
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Mercedes W140 Parking Control Unit Module Sensor A0205457832
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BMW E65 Door Cable Guide Rear Left N/S Wiring Loom Bracket Trim Cover 6907329
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Mercedes W176 180 CDI OM607 Engine Control Unit Module ECU 237101754R Automatic
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3 x Mini R57 R58 R59 DWA Door Alarm System Module Control Unit Set 3455305
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Audi A8 D4 Rear Bumper PDC Parking Sensor Wiring Harness Loom Cable 4H0971104S
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Mercedes R171 SLK 200K 163HP 271.944 Engine ECU Kit A2711535391 Keys Lock
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Alternator BMW E90 E81 E87 E85 Petrol Engine N45 N46 Alternator 150A 7533270
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Mini R50 Battery Cable Positive Plus Pole Wiring W17 Diesel 6942505
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PDC Module BMW E60 E61 E63 E64 E65 PDC Parking Control Module Unit ECU 6954007
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Mercedes W221 Rear SAM Fuse Box Power Distribution Control Unit A2215403050
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MUTLU SFB 12V Accumulator Battery 90Ah 750A
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VW Polo 9N Battery Terminal Fuse Distribution Cable Cover Power Board 6Q0937517
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BMW F40 M135iX B48E Petrol Engine Control Unit ECU DME 5A23E05 Automatic
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Audi A8 D4 4H Relay Fuse Bracket Holder Junction Box 4H0907348C
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BMW 7 Series E65 E66 Sensor Front Right Door Airbag O/S 6946104
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Mercedes W221 Bluetooth Hands-free Mobile Phone Adapter A2218201811
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Volkswagen VW Caddy Radio Remote Control Alarm Key Fob Control Unit Module
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Mercedes W140 Seat Memory Control Unit Module Front Left N/S A1408201426
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BMW 1 3 X1 X3 E83 E84 E87 E90 E91 N45 N46 Petrol Enigne Starter Motor 1,1 kW
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Peugeot 307 Citroen C4 C5 1.6 HDI Diesel Engine Starter Motor 1638115880
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Relay Mercedes W124 E280 Fuse Box Light Control Relay A1265420332
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Ford Transit MK6 2.4 Diesel Engine Alternator Generator 4461712
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Alternator Mercedes W212 S212 Diesel OM651 Alternator 220A Valeo A0009063705
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Door Harness Mercedes W205 Rear Left N/S Door Wiring Loom A2055409750
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Mercedes W213 OM654 Battery Cable Starter Alternator Wiring Harness A2385406926
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VW Phaeton 3D Electrical Steering Column Wiring Harness Loom Cable 3D0972072AG
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Audi A4 B7 Body Comfort Control BCM Supply Module Unit ECU 8E0959433CA
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Ford Transit Fuse Box Cover Housing Lid Trim Cap 6C1T14A076C
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Volkswagen Polo 6R Engine Starter Motor Assembly Unit 0AM911023F
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BMW E90 E91 LCI N47N 320d 184HP Engine Control ECU Kit DDE 8518269 + CAS3 + Keys
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Mercedes-Benz C E W202 W210 Front Right Door O/S Control Module A2108207626
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Audi A6 C7 Ignition Smart Key Fob Lock Remote Alarm Button Control 4G0959754K
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Relay Mercedes W124 Indicators Wipers Hazard Lights Relay A2018210047
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Relay Mercedes E200 S124 Petrol M111 Overload Protection Relay A2015403245
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Door Module Mercedes W205 W213 X253 Rear Left Door Control Unit A2139002722
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Volkswagen Polo Mk5 Alternator Generator 140A Diesel Engine 04B903023D
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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 .