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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MINI Cooper D One R50 Alternator Generator 7790879
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Volkswagen Polo 6R Light Lamp Control Module Unit ECU 198393
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Ford Transit Custom MK1 2.2 TDCI 100HP T22DD0P Engine Unit ECU BK2112A650AC
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Audi A7 4G8 Tailgate Lift Boot Lid Control Unit Module Trunk 4G8959107N
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BMW E60 LCI E90 E91 E92 325d 525d M57N2 Engine ECU KIT DDE 7805288 CAS3 + Key
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BMW Mini Cooper One R56 Footwell Light Module LOW ECU PL3 FRM II 3450938
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Mini Cooper R55 R56 N12 1.6 120HP Petrol ECU Kit DME CAS3 Key 7640005
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BMW F40 X1 F48 Mini F55 F56 F60 Engine Injector Wiring Loom Harness 8685853
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Audi TT 8N Battery Fuse Box Power Distribution 8N0937550E
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BMW E60 520i M54 170HP Engine Control ECU Kit DME 7549387 CAS2 Keys Automatic
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Audi A5 8T Display Screen Radio Multimedia Navigation Display 8T0919603C
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BMW 3 5 7 X5 Series E38 E39 E46 E53 Generator Alternator Bosch 120A 7501690
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Mercedes W212 CDI Automatic Gearbox Control Module Unit ECU A0005456916
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BMW E87 LCI E90 118i 318i Petrol N43 ECU Kit 7599881 DME CAS3 Key Manual
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Mercedes C204 Rear SAM Module Fuse Box Relay Control Unit A2049060205
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Seat Leon Mk3 5F Front Crash Impact Sensor 5Q0907651
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Door Module Mercedes W205 Front Right O/S Door Control Module Unit A2059006013
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Mini Cooper R50 Engine W10 90HP Engine Control ECU DME Kit 7513983 Automatic
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Fuse Box Mercedes Sprinter W907 Prefuse Box Module F150/1 - MFB-1 A9075406960
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Bosch S5 A11 AGM Start Stop Accumulator Battery 80Ah 800A 12V
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Ford Focus 1.6 TDCI Diesel Glow Plug Wiring Loom Cable Wire 9661094180
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PDC Wiring Mercedes ML W164 Front Bumper Parking Sensor Loom Cable A1645402305
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BMW 5 Series E60 E61 Rear Bumper PDC Wiring Loom Cables Set 6928366
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Mercedes CL C216 Rear Side Window Regulator Module Control Unit A2168707826
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Mercedes W204 W212 Front Windscreen Rain Light Sensor Control Unit A2048708826
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BMW E82 Footwell Light Module Control Unit ECU Lear FRM3R PL2 9263794
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Mercedes W169 W204 W211 C219 Replacement Fuse Kit Set N000000004325
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Mini F60 Hybrid High Voltage Battery Wiring Loom Harness 6824117G
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Audi VW Volkswagen Seat Relay Number 53 Unit Module 4 Pins Set Of 4 141951253B
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Parking Sensor Mini Cooper F54 F55 F56 F57 F60 PDC Ultrasonic Black 9274428 SET
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SRS Module BMW X3 G01 X4 G02 5 G30 Control Module Air Bag Unit 5A656B5
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Volkswagen Tiguan 5N Sat Navi Stereo Radio Audio Head Unit CD Player 2K0035279C
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Mercedes W169 W245 Door Control Module Front Left N/S A1699000500
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Audi A4 B9 Q5 FY Body Control Comfort Unit Module BCM Unit ECU 8W0907063CH
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BMW F30 F36 G11 Telematics Module Bluetooth Telematik Control Unit ECU 6809300
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Mercedes SLK R171 Fuse Box SAM Relay Control Unit Module A1715450101
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VW Polo MK5 1.2 TDI CFWA Alternator Wiring Starter Motor Harness 6R0971349AH
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Volkswagen VW LT 35 Diesel Engine Starter Motor Unit Napa 069911023LX
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Audi TT 8J ESP YAW Lateral Acceleration Sensor 7E0907655A
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BMW E90 E90N E91 E92 On Board Monitor Display Screen 8,8" Radio 9215646
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Starter Mercedes W177 M282 Petrol Engine Starter Motor A2829062400
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BMW E81 E87 E90 E91 LCI E92 E93 CD Radio Business 9236531
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BMW 1 3 Series F20 F21 F30 LCI Headlight Control Unit Module FLE2 7444684
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BMW X5 Series E53 Amplifier Trap Circuit 65258377656 8377656
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Mercedes W210 Fuse Box Sam Module Control Unit A0025451901
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Audi A4 B8 Glove Box Passenger Air Module Switch Wiring Harness Cable 8K0971679B
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Audi Q3 8U Petrol Alternator Generator 14V 140A 06J903023B
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Audi A4 B7 Cabriolet Roof Motor Wiring Harness Wiring Loom 8H0972387
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MULF2 Module BMW E60 E87 E90 E91 Hands-Free Electronics Charging Unit 9226711
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Mini Cooper One R50 R52 Alternator Generator 110A Benzin 7550997 7559223
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BMW F20 F21 F10 F11 LCI F30 F32 ACC Front Radar Sensor Module Unit 6874817
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Seat Leon Cupra 5F 2.0 TFSI CJXH 290HP Engine ECU Kit 06K907425B BCM+Key Manual
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Seat Module Mercedes W205 W253 Memory Control Unit Driver's Side A2059005122
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Renault Trafic F83 F9Q 760 Engine Control Module ECU 8200546983 Manual
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Volkswagen Transporter T5 T30 Fuse And Relay Box Wiring Cable 7H0937617
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BMW F20 F30 125d 325d N47S1 Engine Control Unit ECU Kit DDE 8570935 + FEM + Key
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Rain Sensor Mercedes W204 W212 Windscreen Control Unit A2049014504
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Mercedes ML W164 Fuse Box Rear SAM Relay Control Unit Module A1645409062
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BMW X1 E84 Light Module BASIS Footwell Module PL2 FRM3R Lear 9241002
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BMW F01 F02 F06 F07 F10 F11 F12 Positive Cable Battery Lead N55 Engine 7611322
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Seat Leon Mk3 5F Deployment Crash Impact Sensor Front Centre 3Q0959651A
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Mercedes Sprinter W907 Telematics Services Communication Module A2579005100
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BMW Body Control Module Lear BCM Unit ECU 9291771
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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 .