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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Radio Head Unit Ford Transit 6000 CD Media Player Unit 8C1T-18C815-AD
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Mercedes GLC C253 X253 Pedestrian Protection Pressure Crash Sensor A2539052100
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Citroen Berlingo Peugeot Partner CD Player Radio Stereo Head Unit 98053736XT00
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BMW E34 E36 E46 316i 318i 518i Ignition Coil Control Unit Module 1247281
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BMW F30 On-Board Screen 8,8" Android Infotainment System F30_NBT
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BMW E60 E90 E91 N52 325i 525i 218HP ECU DME 7555361 Engine Control Unit Manual
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Radio Head Mercedes Vito W639 Sprinter W906 CD Audio Stereo Unit A9068200886
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Audi A5 F5 Xenon Headlight Resistor Ballast Relay Module Unit 7PP941572AC
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Audi RS4 A4 B8 8K Parking Sensors Rear Bumper Wiring Loom 8K0971104AC
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Communication Module Mercedes W177 W205 W213 X253 Hermes LTE Unit A2389008601
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Audi A6 C6 Battery Positive Plus Pole Terminal Lead Overload 4F0915459
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Ford Fiesta Mk7 Bluetooth Voice Box Control Module Connectivity CS7T-14D212-AD
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Battery Cable VW Golf 8 Audi A3 8Y Starter Alternator Wiring Harness 5WA971230CM
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Mercedes W204 OM651 14V 150A Alternator Generator Engine Start/Stop A0009060401
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Navigation Player Mercedes W211 W219 DVD CD Reader Control Unit A2208703589
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BMW F06 Footwell Light Module Control Unit ECU FRM3 6992947
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BMW 3 5 X5 Series E39 E46 E53 BMW Radio Professional TMC Unit 6976963
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Mercedes-Benz C-Class W203 CD Player Audio Stereo Radio Head Unit A2038201786
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BMW E60 E63 E87 E90 E91 Relay Make Contact Orange Bosch 4 Pins Set 1378238
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BMW X5 E53 E60 E65 X3 E83 Adaptive Headlight ECU Control Unit Module 6934837
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Mercedes W211 Door Module Rear Left N/S Control Unit ECU A2118704026
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BMW X5 Series E53 Light Check Module Control Unit ECU Lear LCM III 6914655
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Audi A1 8X Mulitmedia MMI Player Audio Stereo Radio Head Unit 8XA035192C
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BMW F20 F21 F30 F31 REM Rear Electronic Module Fuse Box Control Unit V1 9317173
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Mercedes C204 C250CDI OM651.911 204HP BlueEFFICIENCY Engine ECU Unit A6519007401
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BMW 5 Series E60 E61 Cable Set Door Wiring Loom Harness Driver's Side 9120773
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Mercedes Sprinter W906 Door Module Front Right O/S Control Module A9069006100
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BMW F20 F21 F30 F32 N55 Power Distribution Module Bracket Cover Carrier 8620771
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Radio Professional BMW F20 F21 F30 F31 CD Player DAB Bluetooth 9381305
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BMW X5 F15 Bumper PDC Rear Wiring Loom Parking Sensor Cable 9355462
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Trafficmaster Control Module Mini R50 R53 GPS Control Unit ECU 93970000052
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BMW X5 X6 E70 E71 M57N2 Alternator Generator 180A VALEO 7801173
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BMW E81 E87 LCI E90 E91 120d 320d Diesel N47 ECU Kit DDE 7810000 CAS3 + 2 Keys
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Renault Master II Trafic II 2.5 dCi Diesel Engine Starter Motor Valeo 8200634602
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Audi A8 D4 BCM Module Body Control Unit Convenience ECU 4H0907064FB
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Mercedes W176 W205 C207 W212 Front Radar Distance Sensor Unit Module A0009050410
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BMW F30 Door Wiring Front Passenger Door Loom Cables Harness F31 9286238
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Mini Cooper R50 R53 Control Unit Module RPA Tire Puncture Warning 6801252
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BMW X3 Z4 E83 E85 E86 Radio Business CD Player 9173686
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BMW E60 E61 E63 E64 Micro Power Control Module MPM ECU 6939655
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BMW E91 Touring Body Control Module Unit Junction Box KL PL2RR JBBFE 9229885
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Porsche Macan 95B Antenna Amplifier Control Unit Module Holder Bracket 95B907515
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BMW F10 F20 F30 N20 125i 328i 528i N20 Wiring Harness Engine Module 1 7641649
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BMW 3 E36 Coupe Saloon Aerial Antenna Amplifier Signal Booster Module 1387751
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BMW 1 3 Series E81 E90 LCI Business System Car Infotaiment Computer CIC
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BMW F87 LCI M2 Competition S55 411HP Engine Control Unit ECU DME 9798427
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Audi TT 8J BCM Body Comfort Convenience Module Unit ECU 8J0959433B
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BMW X3 F25 Central Gateway Module Control Unit Lear ZGW-02 4SK 9380334
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Mercedes Vito W639 646.980 Engine Unit ECU Kit A6461500977 Key Lock Automatic
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Mercedes-Benz W906 313 CDI OM651 Diesel Engine Control Unit CRD ECU A6519000601
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Audio Controller BMW E90 System Control Unit Module Navigation 9186215
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Volkswagen VW Caddy Radio Remote Control Alarm Key Fob Control Unit Module
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BMW E90 E91 E92 E93 Longitudinal Dynamic Module Cruise Control 6771182
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BMW Z4 Series E85 E86 Body Control Unit Module GM5RD 12V 6931707
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Mercedes W906 W907 Cut Off Electric Relay Module A0025424019
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Part no. 6917548
Mini R50 R53 Rear PDC Ultrasonic Parking Sensor Pure Silver Metallic 900
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Alternator Mercedes R172 SLC 43 AMG Petrol OM276 200A Valeo A0009068806
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Audi A6 C8 Adapter Cable Wiring Loom Crash Sensor 4K0971677
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BMW E60 LCI Radio Player Audio System Controller Head Unit 9195756
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Mercedes W164 M113 Petrol Engine Starter Motor A0061510601
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Audi A5 8T Module Lane Assist Control Unit Rear Right O/S 8K0907566H
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Mini Cooper R57 Cabrio Convertible Wiring Loom Harness Rear Trunk Lid 9144846
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BMW F23 REM Rear Electronic Module Fuse Box Control Unit V2 9374507
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BMW Mini Cooper R55 R56 R57 N12 Engine Extension Cable Blow By 7568769
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Mercedes W205 Centre Console Lighting Wiring Harness Cable Loom A2059061905
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Mercedes W176 M270 Petrol Engine Wiring Harness Loom Cable A2701504400
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Audi TT 8N Air Module Control Module Unit ECU 8N0959655D
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BMW X5 SERIES E53 3.0i M54 Engine Wiring Loom Harness Module 7531986
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Body Control BMW F20 F21 F30 F31 F32 Unit Module REM 9279824
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Volkswagen Sharan 7N Fuse Box Module Comfort BCM Control Unit ECU 5K0937084H
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BMW X1 Z4 E81 E84 E87 E88 E89 E90 E91 E92 1 Radio Business CD 6975015
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Gearbox Module Mini F55 F56 F57 Automatic Basic Control Unit EGS 8608020
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BMW E81 E90 E91 E60 Petrol Alternator Generator 150A 7550967
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BMW X3 F25 Body Control Module ECU Junction Box JBBFE III 3 V8 Lear 9393675
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BMW E60 E65 Petrol 530i 730i M54 Engine Control Unit DME 7527072 Automatic
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Fuse Box Mercedes GLC X253 Engine Compartment Relay Box Unit A2229063805
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VW Volkswagen Polo 6R Air Module Control Unit 6R0959655C
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BMW E60 E90 325i 525i N52 218HP Engine ECU Kit DME 7561684 CAS2 + Key Manual
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Chip Power Box Remap Module Control Unit Wiring Cable Harness Plug OBD2
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Seat Exeo 3R Headlight Range Control Unit Module ECU 5M0907357D
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BMW F10 F11 Pedestrian Protection Sensor F-Optic Control Unit 9318777
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Engine Alternator BMW E60 E61 E65 E66 Diesel Alternator Generator 170A 7789981
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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 .