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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Part no. 9257151-1
Telematics Module BMW F20 F30 Control Unit Bluetooth Combox ECU 9257151
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Lexus LS400 1UZFE V8 Petrol Engine Alternator Generator Denso 2706050200
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Mercedes W639 3.0CDI OM642.990 Engine Control Unit ECU Kit A6421501500 Key Lock
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Porsche Cayman 987C BCM Body Control Module Unit ECU 99761826006
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Radar Sensor Mercedes W204 C117 Rear Blind Spot Right left N/O/S A0009053303
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Radio Player Mini F55 F56 CD Bluetooth DAB Alpine Control Unit Module 9344050
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BMW 3 5 7 X5 Series E38 E39 E46 E53 Generator Alternator Bosch 120A 7501690
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Volkswagen Jetta A6 Manual Gearbox Earth Line 1K0971250CE
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Volkswagen Crafter 2E 2.0 TDI Diesel Engine Alternator 03L903023P
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Ford Transit Fuse Relay Box Housing Covering Panel Cover Trim 6C1T14A076E
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Mercedes W212 Radio Head Unit COMAND Navi CD DVD Player Control Unit A2129068800
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BMW E81 E87 E91 Switch Cluster Steering Column Cruise Control 9121903
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Porsche Cayenne 9PA Body Comfort Module Control Unit ECU 7L0959933D
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Mercedes W207 Seat Adjustment Motor Front Seat Actuator Unit 0390203330
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Mercedes W211 Alternator Generator A0121549802
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Mercedes C204 Sound Audio Amplifier Unit Harman Becker A2129005213
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Audi A4 B8 8K A5 8T Sound System Audio Amplifier Amp Unit 8T0035223AB
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BMW F20 F21 F22 F30 F32 LCI B47 Diesel Starter Motor Engine 8570846
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Mini R56 R57 LCI One N16 1.6 98HP Petrol Engine ECU Kit DME 7607685 CAS3 + Key
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Citroen C4 Peugeot 407 3008 Alarm Anti-Theft Siren Module Unit 9657384680
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BMW X3 F25 X4 F26 Integrated Supply Module 8645515
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BMW E87 LCI Footwell Light Module Control Unit PL2 FRM3R 9224592
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Mercedes W204 Fuse Box Rear SAM Module Electrical Fuse Unit A2049067702
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BMW X5 X6 Series E70 E71 Navigation System Car Computer CIC 9222855
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BMW X3 Series E83 LCI 2.0d N47 Engine ECU Kit DDE 8506356 + EWS4 + Key Manual
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BMW F10 F11 306HP N55 535i ECU Engine Control Unit Module DME 7620419 Manual
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BMW E60 LCI 530d X5 E70 3.0d M57N2 Engine Control Unit ECU DDE 8509035
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Air Bag Module BMW E65 E66 Sensor Rear Seat Airbag Control Unit ECU 6960226
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Alternator BMW G11 G12 LCI G20 G21 G30 G31 Alternator 250A Denso 8634167
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TV Function Module BMW E65 E66 E67 Video Control Unit Tuner 6933866
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Porsche Cayenne 9PA Front Bumper PDC Park Sensor Wiring Harness 7L5971095J
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Fuse Box Mercedes W204 Front Relay Control Unit Module SAM A2129006624
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BMW F22 F23 F30 F31 LCI 218i 318i B38 136HP Engine ECU DME 8662411 Manual
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BMW F10 F11 F20 F21 F30 F31 F32 Navigation DAB Head Unit High 9289614 9290361
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BMW F20 F21 F22 F30 F31 F32 F36 Module Control Unit FEM 9383178
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BMW F20 M135i F30 335i N55 326HP Engine Control Unit ECU DME 7540686 Automatic
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Porsche Boxster 986 Air Module Control Unit Controller ECU 99661821900
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BMW F33 Driver Side Seat Wiring Loom Electric Harness 9352158
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Volkswagen Golf 5 GTI 1K 2.0 TFSI 200HP Engine Ecu Kit 1K0907115F Key Ignition
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Audi A3 8V Diesel Engine Starter Alternator Electrical 14V 140A 03L903023
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Mercedes Viano Vito W639 Radio Fan Adapter Control Unit Module A6398200642
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Audi A8 4E S8 D3 Head Unit Interface Control Module 4E0910732A
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Part no. 7823344-2
BMW F20 F21 F30 F31 F32 N47N Diesel Alternator 175A 7823343 7823344
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BMW E60 Light Control Unit Module LM E6X MAN.LWR Lear 9112631
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Audi Q7 4L Multimedia Stereo Sat Nav SD CD Player Radio Head Unit 4L0035670
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Audi A4 B7 2.0 TFSI Starter Motor Engine Motor Actuator Petrol 03L911021E
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Mercedes W212 Front Fuse Box SAM Relay Control Unit Module A2129008507
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Seat Leon Cupra 5F Suspension Control Unit Module ECU 5Q0907376B
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Mercedes W164 ML280 CDI OM642.940 Engine Control Unit ECU Kit A6421506691 Key
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Wiring BMW X3 F25 Automatic Gearbox Module Engine Wiring Harness 7811176
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Body Control Module BMW X5 E70 ECU Junction Box LOW PL4 JBBFEII 2 9138471
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BMW X1 E84 Radio Stereo CD Player Navigation Nav Head Unit 9283247
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BMW E60 Light Control Module Unit Lear LM E6X MAN.LWR Lear 6941589
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BMW Z4 E89 LED Footwell Control Module ECU 9286885
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BMW E81 E87 LCI E90 120d 320d N47 177HP ECU KIT DDE 7811700 CAS3 Keys Automatic
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Vauxhall Opel Astra G Engine Control Unit ECU Module Petrol Automatic 09391340
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VW Volkswagen Golf 1K 2.0 TFSI BWA Starter Motor 02M911023G
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Part no. 8603352-1
BMW F20 F30 116i 316i N13 Engine ECU KIT DME 8603352 + FEM + Key Manual
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Mercedes W204 Rear SAM Module Fuse Box Relay Control Unit A2049060205
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BMW X4 F25 F36 F85 F15 Shark Roof Fin Antenna Aerial Module Unit 9291486
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Land Rover Freelander 2 2.2 Diesel DOHC Engine ECU Module 6G9112A650AE Manual
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Mercedes W245 B200 CDI Blue Efficiency OM651.901 Engine Unit ECU A6519009402
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Parktronic Module Mercedes W204 PDC Parking Sensors Control Unit A2049009201
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BMW F10 Control Unit Box F07 F11 Engine Ventilation Housing Box 7555176
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VW Volkswagen Golf SV Gateway Control Unit Module ECU GW MQB High 3Q0907530L
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BMW 3 Series E92 Max Brose Footwell Light Module Control Unit ECU FRM3R 9224598
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VW Golf 6 2.0 TDI Diesel CBD Engine Control Unit ECU Manual 03L906022LF
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Nissan Qashqai Diesel Engine Starter Motor Actuator Starter 23300JG70A
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BMW E87 LCI E90 118d 318d N47 Diesel ECU DDE CAS3 Key 7807828 Automatic Gearbox
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Mercedes Vito W447 Fuse Box Relay Control Unit Electric Module SAM A4479005807
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BMW F10 F11 550i F12 F13 650i N63 408HP ECU Kit DDE 8610680 Key CAS4 Automatic
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BMW F22 F30 LCI Control Unit Airbag ECU NO CRASH DATA 9348728
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BMW X5 E70 3.0si 272HP N52N ECU Engine Control Unit Kit DME 7576297 Automatic
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Audi Q7 4L Bluetooth Module Multimedia Control Unit ECU 4E0035729A
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Volkswagen New Beetle Earth Ground Cable Negative Battery Lead Wiring 1C0971235A
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Mercedes W212 E220CDI OM651.924 Engine Unit Module ECU Kit Key Lock A6519005301
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Audi Q5 FY Air Module Control Unit SRS System ECU 80A959655N
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Volkswagen Polo 6R Audi A1 8X Alternator Generator 14V 110A 04E903015A
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Audi A4 B9 2.0 TFSI DEMA BCM Body Control Module Unit ECU 8W0907064EB
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BMW E81 Footwell Light Module Control Unit ECU BASIS PL2 FRM3R 9224588
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Mercedes W906 314CDI OM651.955 143HP Engine Unit Module ECU Kit A6519003403
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Audio Amplifier BMW F10 F11 F12 F13 Harman Kardon Top HIFI Sound Unit 9261703
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BMW E92 Footwell Xenon Light Control Module Lear FRM3R PL2 9240528
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Part no. 8514831
Engine Wiring BMW F30 F31 F32 F36 LCI 330d 430d N57N Loom Harness Cable 8514831
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Mercedes W906 Fuse Box Control Unit Module ZGS Temic A9069006303
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Audi A5 8T 2.0 TDI CGLC Engine Unit ECU Kit 03L906018JH Key Ignition Lock
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BMW F45 X1 F48 i3 I01 Airbag Module Control Unit ECU Air Bag 9495910
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Audi A7 4G8 Body Comfort Control Module Unit BCM V2 4H0907064GB
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Part no. A0009061903-1
Mercedes W176 W242 W246 Alternator Generator Bosch A180 Petrol A0009061903
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BMW 1 3 Series E81 E87 E90 LCI 118d 318d N47 Diesel ECU Kit DDE CAS3 Key 7823422
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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 .