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 E46 E60 E61 E65 E83 E53 M57N Starter Motor LRS01964BN
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Front Seat Module BMW E60 E61 E65 E66 Control Unit ECU 6924879
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Mercedes ML W166 Front Door Module Right O/S Door Control Unit A2059006013
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MINI Cooper R50 R52 W10 1.6 Petrol Engine Control Unit ECU DME 7557395 Automatic
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BMW E60 E61 E90 E91 Xenon Adaptive Headlight Ballast Control Module 6934836
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Adblue Module Mercedes W166 W212 R172 C218 C292 Control Unit ECU A0009003213
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MINI One 1.6 R50 R52 W10 90HP Engine ECU Kit DME 7545789 + EWS + Key Manual
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BMW E81 E87 E90 E91 Radio BMW Business CD Player Control Unit 9141682
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BMW E60 Body Control Module ECU Control Unit KBM Basis 6978713
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BMW 1 Series E87 Footwell Light Module ECU Control Unit LOW PL2 FRMFA 6977722
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Peugeot 5008 2.0 HDI DW10C Diesel Engine Control Unit ECU 9667082380
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Volkswagen Golf 8 Rain Sensor Front Windscreen 5Q0955559C
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BMW E63 E64 LCI Camera Lane Departure Warning Unit 9137725
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Mercedes W221 Door Module Front Right O/S Control Unit ECU A2219006404
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Fuse Box Mercedes W204 Rear SAM Relay Fuse Box Control Module A2049000902
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Mercedes Vito W447 Battery Cable Diesel OM651 Alternator Wiring A4475406353
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Radio Head Unit Mercedes C207 W207 COMAND Navi CD Player Navigation A2129009004
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BMW E60 520i M54 170HP Engine ECU Kit DME + CAS2 + Key 7527072 Automatic
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Mercedes Sprinter W906 Door Module Front Right Control Unit A9068203926
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BMW 1 Series 1 E87 6-disc CD Changer Without Magazine 6958198
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Vauxhall Astra H Corsa D Merriva B 1.7 CDTI Engine Starter Motor 8980147432
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BMW E81 E87 LCI E90 N43 170HP Engine Control Module ECU Kit DME 7621178 Manual
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AUDI A7 4G8 Parking Assist Sensors Distance Control Module 4H0919475N
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Gearbox Module Mercedes W177 W205 W213 Control Unit ECU Automatic A2139003217
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Mercedes W164 Fuse Box Relay Module Unit A1645403472
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Distributor Box Mercedes W204 W212 W906 Front Block Control Unit A0045468240
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Mercedes W204 Navigation CD Player Radio Stereo Sat Nav Head Unit A2049005112
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Mercedes W169 W245 B170 M266.940 116HP Engine Control Unit Set A2661539679
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Mercedes W205 Head Unit Radio CD Player Audio Sat Nav Multimedia A2059003729
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Audi A1 8X Bluetooth Interface CarPlay MMI Retrofit Multimedia Unit Set MMI2G
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Mercedes-Benz A B Class W176 W246 Diesel Fuse Box Relay Unit A2465402150
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Air Module Mini R50 R53 Side Control Unit ECU 6915886
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BMW E90 E91 LCI E92 330d N57 245HP ECU Engine Kit DDE 8510221 CAS3 Key Manual
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BMW 5 Series E60 Body Gateway Module KGM LOW LEAR 9133144
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Mercedes W211 Cable Loom Wiring Parking Sensors Rear A2115406606
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BMW E81 E87 LCI 123d Petrol N47S 204HP ECU Kit DDE 8506442 CAS3 Key Automatic
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BMW F10 Touch Detection Module Steering Wheel Control Unit HOD F45 i3 6867308
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BMW X3 E46 E60 LCI E83 E87 Starter Motor 2.0KW Diesel M47N2 7787354
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BMW F10 F11 520d ed N47N 184HP Engine ECU Kit DDE 8517862 Key CAS4 Manual
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BMW 3 5 Series E60 E90 E91 N52 325i 525i ECU Kit DME CAS2 Key 7577968 Manual
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BMW E60 E61 E65 E66 Seat Control Module Ecu Sensor 6927275
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BMW X3 3 Series E46 E83 LCI 1 Start Point Housing Bracket Base B 8385157
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BMW F20 F21 F22 F30 F31 F32 F33 Fuse Box Body Control Unit Module REM V5 6819336
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Mini R55 R56 R57 LCI N12 N14 N16 N18 Engine Alternator Generator Petrol 120A
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Audi A3 8P Air Module SRS System Control Sensor ECU Unit 8P7959655
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Mercedes W212 CDI Automatic Gearbox Control Module Unit ECU A0005456916
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Mercedes-Benz A E M Class W163 W168 W210 CD Player Audio 10 Stereo Radio Unit
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Mercedes W204 SAM Control Unit Module Fuse Box Relay Rear A2049060105
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Audi A4 B7 Cabrio Folding Top Roof ECU Module Control Unit 8H0959255A
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Bass Speaker BMW F30 F31 F32 Central Subwoofer Harman Kardon Left N/S 9210151
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BMW E90 LCI Footwell Light Control Module Lear FRM3R PL2 LED 9240532
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@Starter Motor Mercedes W203 W210 W211 Diesel Engine Actuator MAWS38371
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BMW 1 3 Series F20 F21 F30 F31 LCI Navigation Sat Nav Head Unit High 6819420
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Air Module Mercedes W907 W910 Control Unit ECU A2139008828
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Relay Box Mercedes ML W166 Engine Compartment Relay Module A1669063801
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Mercedes CLA 200 C118 Instrument Cluster Electronics Control Module A2479007314
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Bluetooth Control Unit BMW E60 E87 E90 Telematics Module ECU 9224422
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Mercedes Sprinter W910 ECU Bracket Control Unit Module Holder Mount A6511400300
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Mercedes Sprinter W906 OM651 Battery Wiring Harness Loom Cable A9065403815
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Negative Cable BMW X5 F15 X6 F16 Battery Boot Negative Lead Sensor 9380966
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Audi A3 8P Yaw Sensor ESP Rotation Rate Control Unit Module 1K0907655A
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BMW 5 Series E60 E61 Centre Console DSC PDC Switch Center Cluster 6938310
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Mercedes C216 W221 Display Screen Multifunction Navi Command A2218206389
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Mercedes ML W163 Seat Module Control Unit Front Left Right N/O/S A1635452132
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BMW X5 E53 E60 E65 X3 E83 Adaptive Headlight ECU Control Unit 6934122
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Audi Q7 4L Boot Trunk Subwoofer Rear Bass Speaker 4L0035382B
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BMW E81 E82 E83 E84 E85 E87 E90 Petrol Denso Starter Motor 7524843
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Ford Transit MK7 2.2 TDCi Diesel Glow Plug Wiring Loom Cable BK2Q6M091AE
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Ford Transit Mk7 Radio CD Player Head Unit Autoradio 6000 CD 8C1T-18C815-AA
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Audi A6 C7 BCM Body Comfort Convenience Module Unit ECU 4H0907064CN
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Porsche Macan 95B Air Module Control Unit ECU 95B959655G
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Engine Wiring Mercedes W204 C207 W212 M271 Harness Loom Cable A2711500620
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Mercedes W204 Navigation CD Player COMAND Radio Sat Nav Head Unit A2049004306
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Ford Transit Custom Rear Bumper Parking Sensor Wiring Harness Loom BK2T15K867DC
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BMW 1 3 Series E87 E90 E91 E92 Seat Control Unit Module ECU 9134662
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Audi A1 8X Multimedia Radio CD Player Navigation Head Unit 8X0035183F
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Mercedes W204 C220CDI BlueEFFICIENCY OM651.911 Engine ECU Kit A6519007500 Key
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Battery Cable BMW F12 F13 Underfloor Positive Plus Lead Wiring Harness 9151341
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BMW 5 6 Series E60 E61 E63 6-disc Compact CD Changer Without Magazine 6986081
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Mercedes S212 Estate Roof Antenna Cover Shark Cosmos Black Metallic - 303
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Airbag Module Mercedes w176 Air Bag SRS Control Unit ECU A1179008600
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Volkswagen Golf Mk7 VII Engine Starter Motor Assembly Unit 0AM911023J
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Engine Harness BMW F20 F21 F30 F31 Petrol N13 Sensor Module 1 Wiring 7607975
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Mini Cooper R55 R56 R57 R58 Petrol Engine Alternator Generator 7576921
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Fuel Pump Module BMW F20 F21 F30 F31 N13 Petrol Control Unit 7447895
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BMW E81 E90 LCI Business System Car Infotaiment CD Player Head Unit CIC 9226347
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BMW Z4 Series E89 Convertible Positive Battery Cable Wiring Lead 9189850
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BMW X3 X5 Series E53 E83 PDC Parking Distance Control Unit Active Module 6942676
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Audi A3 8P VW Scirocco Mk3 Starter Motor Engine Valeo 1.4 TSI Petrol 02Z911024P
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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 .