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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BMW F20 F30 125d 325d N47S1 Engine Control Unit ECU Kit DDE 8570935 + FEM + Key
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Seat Leon Mk3 5F Deployment Crash Impact Sensor Front Centre 3Q0959651A
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Mini Cooper One R50 R53 Adapter Lead Rear Window Wiper Motor 6948099
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VW Volkswagen Crafter 2.0 TDI CKTB 109HP Engine ECU Kit 03L907309 Manual Gearbox
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Radio Head Unit Mercedes W176 Media Player Navigation Unit A2469002318
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Audi Q3 S Line BCM Body Control Module Unit ECU 8X0907063AF
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BMW 3 5 7 Series F30 LCI 330e G11 G30 Fuel Pump Control Unit Module 7439743
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Wiring BMW X5 F15 M Sport Rear Park Assist PDC Wiring Harness Loom 9361150
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BMW E82 X1 E84 E87 LCI 120d N47 177HP Engine ECU DDE 8512498 Manual
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BMW X3 Series E83 2.0d 150HP Engine ECU Kit DDE EWS3 Key 7796571 Manual
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VARTA Silver Dynamic Accumulator Battery 77Ah 780A 12V E44
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BMW F10 F11 530d N57 245HP Engine Control Unit ECU Module DDE 8511385 Automatic
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Mercedes W164 ML320 OM642.940 Diesel Engine Unit ECU Kit A6421509478 + Keys
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Audi A4 B7 Stereo Radio Sound Audio Amplifier Module Harman 8E5035223
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BMW F10 F11 520d Diesel N47N 184HP Engine Control Unit ECU DDE 8513242 Automatic
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BMW F10 F11 530d N57 245HP Engine Control ECU Kit Module DDE 8510643 CAS4 Key
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BMW F10 M5 Control Unit Module ECU Fuel Pump 7302256
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Telematics Module BMW F20 F30 Control Unit Bluetooth Combox ECU 9257151
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BMW 7 Series E65 E66 E67 Antenna Amplifier Diversity 6933667
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Mercedes W211 Central Gateway Control Unit Module ECU A2114452600
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Mercedes SLK R171 Door Module Front Right Control Unit ECU A1718207026
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PDC Parking Sensor BMW X5 E70 F10 Ultrasonic Sensor Imperial Blue A899231283
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Audi A3 S3 8P Engine Bay SAM Relay Fuse Box Module Control Unit ECU 1K0937124P
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AUDI Q7 4L Lane Assist Module Blind Spot 4L0907566A
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Pedestrian Protection BMW G20 G21 G28 Crash Sensor Cable Unit Module 6833256
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Mini Cooper R55 R56 R57 LCI Radio Boost CD USB Bluetooth Head Unit 3457050
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BMW 1 Series E81 E87 LCI Positive Battery Lead Distribution Box Cable Rear
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BMW F20 F21 F22 Rear Bumper PDC Ultrasonic Sensor Glacier A83 Silver Set
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Mercedes ML W164 Rear Control Unit Module Fuse Box SAM A1645401801
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Mini R57 Footwell Light Module PL3 FRM3R Lear Control Unit ECU 3456586
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BMW X3 F25 CarPlay Android Auto Tuning Solutions Head Unit Retrofit NBT MMI Box
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BMW F20 F21 F30 F31 118d 318d N47N ECU Kit DDE 8518569 Key + FEM Manual
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Mercedes W639 109CDI 646.980 Engine ECU Kit Ignition + Key + Lock A6461507272
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BMW F80 M3 F82 M4 Control Unit Module Active Sound Design Amplifier 8701084
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Mercedes R172 Security Alarm Interior Protection Sensor Module Unit A2319052600
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BMW E90 E91 LCI N47N 320d 184HP ECU Engine Unit DDE 8512291 Automatic
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BMW E88 Footwell Light Module Control Unit ECU BASIS PL2 FRM3R 9240524
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Parking PDC BMW F07 F10 F11 LCI Distance Control Module Unit 9371497
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BMW 3 Series E90 Saloon ECU Body Control Unit Module PL2 JBBFE H4 9134485
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BMW X5 X6 E70 E71 Dashboard Onboard Monitor Display Screen 6,5" 9146649
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Mercedes R171 Convertible Roof Top Control Unit Module ECU A1718204226
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Ford Transit Mk6 Starter Motor Engine Actuator Diesel 2.4 TDCi YC1U-11000-AC
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Audi A4 B8 Body Control Comfort Unit Module BCM Convenience Unit ECU 8K0907064GG
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Mini Cooper R55 R56 R57 R58 Petrol Engine Alternator Generator 7576921
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BMW E65 Light Control Unit Module DYN.LWR Lear 9116254
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Audi A6 C6 CD Player Changer Multimedia Module Control Unit 4F0035110A
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BMW F30 F31 320iX N20 ECU Kit Engine Control Unit DME 8674937 Key FEM Automatic
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Ford Transit Connect Body Control Module BCM Control Unit ECU 7T1T-14A073-BB
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Fuse Box Mercedes ML W164 GL X164 Control Unit Module Relay A1645400272
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ECS Electronics 5F008 12 V Trailer Module Control Unit 5F008V0101
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Head Unit BMW F20 F21 F22 F30 F31 LCI Sat Nav Radio Media Navigation 8708257
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Mini Cooper One R60 3 Footwell Light Module High EKS ECU PL3 FRM3R Lear 3456588
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BMW Mini Clubman R55 Cable Wiring Loom Splitdoor Door Rear Left N/S 9154347
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BMW 5 6 Series E60 E63 E64 M5 M6 Gearbox SMG Wiring Loom Harness 7836357
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Mercedes Sprinter W906 Fuse Box Relay Electrical Rifle Box Unit A9065400350
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BMW 7 Series E65 E66 DVD CD Changer Multichanger Without Magazine 6967639
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Valvetronic Control Unit BMW X5 E53 E60 E61 E65 VVT Valvetronic Module 7510154
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Engine Wiring BMW F07 F10 F11 520d N47N Automatic Loom Harness Cable 8513830
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BMW E90 Radio Professional CD Audio Player Dash Control Unit 6983018
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Mini Cooper R55 Fuse Distribution Box PL3 SPEG H4 Control Unit Module 3456854
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Radio Head Unit Ford Transit 6000 CD Media Player Unit 8C1T-18C815-AD
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Range Rover L322 3.0 Starter Motor Diesel Engine Denso 7787925
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Audi A8 S8 D3 Electric Parking Brake Module Handbrake Control Unit 4E0907801B
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Mercedes W204 C180 Kompressor 271.952 156HP Engine ECU Kit A2711504879 Keys Lock
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BMW 5 6 Series E60 E61 E63 M-ASK Business Navigation System Controller 6944108
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Audi Volkswagen Seat Skoda 2.0 TDI Diesel Starter Motor Engine Bosch 02M911023P
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Mercedes W203 CD Media Player Radio COMAND Head Unit A2038700090
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BMW F20 F30 LCI 125d 325d B47 224HP Engine ECU Kit DDE 8598760 + FEM + 2 Keys
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BMW E81 E87 E90 E91 E92 Radio CD Player Professional 9150109
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BMW E87 E90 E91 118i 318i Petrol N46 ECU Kit Control Unit DME 7565300 CAS3 Keys
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BMW F40 F44 Air Module Control Unit ECU A1718204726
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BMW E87 LCI E90 320i N43 170HP ECU Engine Control Unit DME 7580279 Manual
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Mercedes W204 Display Screen Multimedia Navigation Dashboard Unit A1729008600
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Mercedes W169 W245 CD Player Radio Audio Head Unit Player A1699002000
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Fiat Alfa Lancia 4 Pin Red Relay Omron 1/11299/85 12V 30A 34F231002 SET
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BMW F15 F16 Body Domain Controller BDC Control Unit Module LR01 ECU 6825527
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Ford Transit Mk8 Fuse Box Power Distribution Junction Relay Unit BK3T-9K499-BBB
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Mercedes W907 Body Control Module Unit A9079004905
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Part no. 8510221-9
BMW E90 E91 LCI E92 325d Diesel N57 204HP ECU Engine Kit DDE 8510221 CAS3 + Key
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BMW F10 M5 Active Sound Unit Control Module Design Amplifier 9287265
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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 .