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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Positive Cable Mercedes W906 OM651 Battery Starter Alternator Plus A9065403527
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Mercedes W207 Connection Media Interface Cable AUX Wire A0018276604
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BMW E60 E61 Centre Console Switch Centre DSC PDC 6944962
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Switch Sensor Cable Mercedes W205 W212 Rear Bumper Module A2229058804
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BMW E61 Body Control Module ECU Unit KBM High 6978714
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Audi A3 8V Heater Blower Motor Fan Resistor 5Q0907521D
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BMW F20 F21 F22 Telematics Bluetooth Control Module Unit TCB ECE GPS 9389658
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BMW 5 Series E60 E61 Front Seat Backrest Adjustment Bosh 0 390 201 999
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BMW E46 E64 Front Seat Module Control Unit Memory 7067801
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Audi Q2 GA 35 TFSI DXDB Petrol Starter Motor Manual 02M911022F
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BMW E60 E60N E61 E63 LCI B Terminal Point Engine Compartment 6923945
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Mini Cooper SD ALL 4 R60 N47N 143HP Diesel Engine ECU DDE 8519663 Manual Gearbox
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Mercedes W221 Radio Multimedia Head Unit A2219006303
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BMW X3 G01 Power Battery Distribution Junction Box Control Unit Rear 6841701
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BMW X5 E70 X6 E71 30dX Diesel N57 245HP ECU Kit DDE 8517015 CAS3 Key Automatic
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BMW X3 F25 20dX Diesel N47N 184HP Engine Module ECU Kit DDE 8513184 2 Keys CAS4
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BMW F97 F98 G01 G02 G20 G30 Engine Starter Motor 8671505
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Radio Business CD BMW E81 E82 X1 E84 E87 E90 E91 E92 Audio Player 9177209
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BMW E81 E87 E91 LCI Steering Column Switch Cluster Wiper Stalk 9123043
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BMW X3 F25 20dX Diesel N47N 184HP Engine Module ECU DDE 8513184 Manual
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Ground Line Mercedes W221 Wiring Battery Starter Alternator Cable A2215409032
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Citroen C3 Picasso Negative Battery Terminal Cable Wiring Lead 9687656980
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Battery Cable VW Polo 6R Positive Alternator Starter Wiring B+ 6R0971349Q
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Mercedes W203 Aerial Antenna Amplifier Module Unit A2038206489
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BMW X3 Series 1 E83 Boardmonitor Central Information Display Screen 6,5" 3417417
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Mini D R60 R61 ALL4 N47N 112HP Engine ECU Control Unit DDE 8583423 Manual
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BMW F20 F30 Air Duct Front Slam Panel Flap Control Motor Drive Unit C11492-104
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VW Volkswagen Polo 5 1.2 TDI Engine Wiring Harness Loom Cable 03P971612
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Head Unit BMW F20 F30 LCI F36 CD Player DAB Radio Sat Nav Navigation 6825837
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Mercedes SLK R172 Rear SAM Fuse Relay Box Control Unit Module A1729060205
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Headlight Module BMW F36 Headlamp Control Unit FLE2 MAX 7429125
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Audi A4 S4 B9 3.0 TFSI 355HP CWGD Quattro Engine Control Unit ECU 06M907309D
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Control Unit BMW F01 F02 F07 F10 F11 CAS4 Key Reading Module 9268752
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Audi A5 8T Engine Alternator Generator 14V 140A Bosch 2.0 TFSI 06H903016L
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CD Radio Mercedes Vito W639 Sprinter W906 Audio Stereo Head Unit A9068200286
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Seat Wiring BMW X3 F25 X4 F26 Driver's Side Loom Cable 9316654
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Mercedes W164 ML350 CDI OM642.820 231HP Engine Control Unit ECU A6429002900
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Mercedes W203 C240 M112.912 170HP Engine Control Module Unit ECU A1121535479
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Fuse Box Mercedes W205 W213 C238 Relay Module Control Unit A2135403038
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Mercedes Vito W639 PDC Parking Distance Control Unit Module ECU A6395450232
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Mercedes W204 Rear SAM Module Fuse Box Relay Control Unit A2049060205
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Peugeot 207 Crash Impact Sensor Control Unit Module 9659186280
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On-Board Screen BMW F10 F11 Central Information Display Monitor 10,25" 9227561
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VW Volkswagen Crafter 2.0 TDI CKTB 109HP Engine ECU Kit 03L907309 Manual Gearbox
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Mercedes R171 W204 W212 Starter Motor Bosch M272 Engine Petrol A0061516001
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Audi A3 8P Air Module Control Sensor SRS System ECU Unit 8P0959655S
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Mini Cooper F56 Wiring Loom Front Left N/S Door Cables 6809486
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Audi A6 C6 Display Screen Multimedia Navigation Dashboard Unit 4F0919603B
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Mercedes SLK R171 Roadster Soft Top Folding Roof Control Module A1718204926
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Audi A5 8T 2.0 TFSI Starter Motor Engine 079911023D
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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 .