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. A2219006902
Mercedes Class W221 Rear Fuse Box Control Unit Module SAM A2219006902
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BMW E60 Body Comfort Control Unit DDE Module ECU 9348358
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BMW E87 LCI Footwell Light Module Control Unit PL2 FRM3R 9224592
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Ford Transit Custom Data Link Obd Port Module JK2T-14F642-AC
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BMW 3 Series E90 E92 M3 Throttle Body Position Hall Sensor Unit 7841706 7841704
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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 X5 E53 3.0d M57N 218HP ECU Engine Control Unit DDE 7794626 Automatic
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BMW E81 E82 E87 LCI E88 N47S 123d 204HP Engine Unit ECU DDE Manual 7811702
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BMW 6 Series E64 Aerial Antenna Amplifier Diversity DAB 6935048
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Volkswagen Fox 5Z Air Module Control Unit ECU Module 1C0909605K
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Mini Cooper One R50 R52 W10 Petrol Alternator Generator 110A 7550997 7515426
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Audi Q7 4L Boot Trunk Subwoofer Rear Bass Speaker 4L0035382B
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Volkswagen Passat B7 PDC sensor Wiring Loom Harness Cable Rear Bumper 3AF971104L
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BMW E60 E90 E91 N52 325i 525i 218HP Engine Control Unit ECU DME 7553166 Manual
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Mercedes W251 R 350 CDI 642.950 224HP Engine Unit ECU Kit A6421508100 Key + Lock
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Citroen Relay III Alternator Generator Valeo 9805343480
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TV Function Module BMW E65 E66 E67 Video Control Unit Tuner 6933866
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Audi A8L 4H Tailgate Lift Boot Lid Control Unit Module Trunk 4H0959107AB
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VW Polo 9N Seat Body Control Comfort Unit Module BCM Convenience Unit 6Q1937049B
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Mercedes W176 A45 4Matic M133.980 381HP Engine Control ECU A2709000900 Automatic
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Head Unit BMW E90 E91 Radio CD Player Navigation Sat Nav DAB Unit 9273187
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BMW F10 F11 F20 F21 F30 F31 F32 Navigation DAB Head Unit High 9289614 9290361
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Door Module BMW E39 Passenger Door Control Module Hella 8378766 6904242
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BMW 3 Series E90 E91 E92 E93 LCI Cable Duct Battery Lead Rear 9124952
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BMW F20 F21 F22 F30 F31 F32 F36 Module Control Unit FEM 9383178
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Air Module Mercedes W907 W910 Control Unit ECU A2139008828
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Mercedes W164 ML320 4-Matic OM642.940 Diesel Engine Unit ECU Kit A6421509478 Key
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Ford Transit Mk7 Engine Wiring Loom Harness Cables 2.2 TDCi 6C1T-12B637-JJ
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BMW E60 Light Control Unit Module LM E6X MAN.LWR Lear 9112631
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BMW E90 E91 E92 E93 Negative Battery Cable Minus Pole 9184207
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Audi A3 8P Steering Wheel Position Angle Sensor Control Unit Module 8P0953549B
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Audi A5 8T Front Seat Control Module Unit Left Right N/O/S 8T0959760E
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Ford Transit Engine Starter Motor Actuator Starter CC1T14000AB
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BMW F20 F30 F31 118d 318d N47N 143HP Engine Unit ECU DDE Kit 8582280 FEM + Key
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Audi Q2 GA Gateway Diagnostics Interface Control Module 3Q0907530AC
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Mercedes Vito W639 Diesel OM646.980 Engine Control Unit Module ECU A6461502634
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Peugeot Partner Citroen Berlingo Mk2 Wiring Cable Loom Diesel Engine 9803029180
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Mini Cooper D ALL4 R60 N47N 112HP 1.6 Engine ECU Kit DDE 8519663 Manual
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BMW F20 F21 F30 F31 N55 326HP M135i 335i Engine Control ECU DME 8616314 Manual
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BMW F20 F21 F30 LCI Headlight Control Unit Module FLE2 7492026
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BMW F30 F31 320iX N20 184HP Engine Control Unit ECU DME 8606777 Automatic
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BMW X3 E83 Radio Navigation System CID Control Unit CD Player 9118823
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Audi A3 8V 1.6 TDI CRKB 110HP Engine ECU Kit Ignition + Key 04L907309E Manual
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Volkswagen VW Golf Mk7 Infotainment Radio Multimedia Head Unit 3Q0035874A
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Starter Motor Citroen Berlingo Peugeot Partner Engine Diesel 1.6 HDI 9640825280
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BMW E81 E87 LCI E90 120d 320d N47 177HP ECU KIT DDE 7811700 CAS3 Keys Automatic
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Peugeot 207 CD Player Radio Stereo Audio Head Unit 96639628XT00
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BMW F20 F30 116i 316i N13 Engine ECU KIT DME 8603352 + FEM + Key Manual
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Volkswagen LT 35 Door Module Central Locking System Module Unit 2D0959800
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BMW F25 F26 F15 F16 Audio Amplifier Harman Kardon Surround Sound System 9393182
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Mercedes Vito W447 Diesel Adblue Module Control Unit ECU A0009007009
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Mercedes W176 W246 Emergency Call Switch Roof Wiring Cable Loom A2465402710
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Merceedes W211 E280 CDI OM642.920 Engine Control Unit ECU Kit A6421509177 Key
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Trunk Lid Module BMW F31 F15 F16 F36 Control Unit Rear Tailgate Lift 7314798
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Mercedes Vito W639 Parking Sensor Warning Device Display A0015422623
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Mercedes Vito W639 Automatic Gearbox EGS53 Control Unit Module ECU A0009001700
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BMW 3 Series E92 Max Brose Footwell Light Module Control Unit ECU FRM3R 9224598
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BMW X5 Series E53 Power Distribution Fusebox Cover Fuse Box 8380407
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Audi Q2 GA Sat Nav Multimedia Control Unit Module SD SIM MIB2 HIGH 81A035035G
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BMW E87 LCI E90 118d 318d N47 Diesel ECU DDE CAS3 Key 7807828 Automatic Gearbox
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Mercedes W212 Comand Radio Head Unit CD DVD Player A2129006905
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BMW F22 F30 LCI Control Unit Airbag ECU NO CRASH DATA 9348728
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Land Rover Freelander L359 Relay 4-Pin Black 12V 40A FOMOCO 5M5T-14B192-DA
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Audi Q7 4L 3.0 TDI CASA Quattro 240HP Engine Contol ECU Set 4L0910401G Automatic
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Audi Q7 4L Radio Head Unit Navi CD DVD Player Changer 4L0910110A
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Part no. 9231320
Dashboard Monitor BMW X3 F25 X4 F26 Onboard Central Display Screen 9231320
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Part no. A6511501879-1
Mercedes W639 OM651.940 136HP Engine Unit Module ECU Kit A6511501879 Key Lock
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Part no. 7590857-3
Mini Cooper S JCW R56 N14 1.6 211HP Engine ECU Kit DME 7590857 CAS3 Key Manual
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Part no. 8571358
Alternator BMW G11 G12 LCI G20 G21 G30 G31 Alternator 250A Bosch 8571358
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BMW X5 E53 X3 E83 Four Wheel Drive Transfer Box Control Unit Module 7550891
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Part no. 8W8959107B
Audi Q5 FY Rear Boot Trunk Lid Tailgate Control Unit Module ECU 8W8959107B
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BMW E81 Footwell Light Module Control Unit ECU BASIS PL2 FRM3R 9224588
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Fuse Box Mercedes W203 W209 Front Relay Control Unit Module SAM A2095451101
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BMW E92 Footwell Xenon Light Control Module Lear FRM3R PL2 9240528
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Head Unit Mercedes CL203 CLC CD Player Radio Audio Telephone Unit A2039000100
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Parking Control Module Mercedes C118 W177 W247 PDC Bluetooth Unit A0009004434
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Part no. 7811702-3
BMW E81 E82 E87 LCI E88 N47S 123d ECU Kit DDE 7811702 + CAS3 + Key Automatic
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Mercedes GLE W166 Wiring Harness Automatic Gearbox Cable Loom A1664403436
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Audi RS6 C7 4G Air Suspension Module Regulation Control Unit WABCO 4G0907553F
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Alternator BMW E90 E81 E87 E85 Petrol Engine N45 N46 Alternator 150A 7533270
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Mini Cooper One R50 R52 R53 W10 1.6 Petrol Engine Starter Motor 4542789
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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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Fuse Box Control BMW E87 E90 E91 E92 E93 Front Power Distribution 6906609
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Audio Amplifier Mini R55 R56 Alpine Hi-Fi System Amplifier Booster 2153319
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Mercedes W204 Fuse Box Rear SAM Module Electrical Fuse Unit A2049067702
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BMW 3 X3 E46 E83 Body Control Unit Module GM5 Star12 Lin High 12V 3454607
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Volkswagen VW Touareg 7L Relay Unit Servotronic Module 6 Pins 7L6907160A
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Mercedes C207 E250 CDI BE OM651.911 Engine Unit Module ECU Kit A6519005301 Key
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Part no. 9313614
BMW F30 F31 F80 M3 Driver's Side Door Wiring Loom Cable 9313614
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BMW X3 E83 LCI M47N2 2.0d 150HP ECU Kit DDE 7805349 Manual Transmission
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Mercedes R171 SLK 200 M271.944 163HP Engine Module ECU Kit A2711538579 Key Lock
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Mercedes Vito Viano W639 Alternator Generator Diesel 200A A0131541002
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Door Module Mercedes W205 W213 C253 Control Unit Rear Right O/S A1679003718
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BMW 5 Series E60 E61 Radio M-ASK M-Audio System Controller CD Player 6955348
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Part no. A1718204226
Mercedes R171 Convertible Roof Top Control Unit Module ECU A1718204226
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Part no. 4H0919475L
Audi A6 C7 PDC Parking Distance Control Module Unit ECU 4H0919475L
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BMW E90 Max Brose Footwell Light Module Control Unit ECU FRM3R 9241008
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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 .