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 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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Audi A6 C7 Saloon CCM Comfort Control Module Onboard Unit ECU 4H0907064BN
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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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BMW Z4 E89 sDrive 20i N20 184HP Petrol Engine ECU Kit CAS3 + Key 7645762 Manual
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Audi A4 B6 B7 A1 8X 1.9 TDI 2.0 TDI Engine Alternator Generator 06F903023FX
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BMW 1 2 3 Series F20 F21 F22 F30 N47N Diesel Engine Starter Motor 8571905
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BMW E81 E87 LCI E90 120d 320d N47 177HP ECU KIT DDE 7811700 CAS3 Keys Automatic
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Mini Cooper One R55 R55N LCI High PL SPEG H4 Fuse Distribution Box 3455436
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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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Mercedes X156 GLA 220 OM651.930 170HP 4Matic Engine ECU A6519007003 Automatic
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BMW F25 F26 F15 F16 Audio Amplifier Harman Kardon Surround Sound System 9393182
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Ford Transit Custom Mk8 Relay 5 Pin 12V 6X4T-14B192-AA
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Mercedes Vito W447 Diesel Adblue Module Control Unit ECU A0009007009
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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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Audi TT 8J Audio Amplifier Radio Sound BOSE Unit 8J0035223D
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Volkswagen Golf Sportsvan 1.5 TSI DADA 150HP Engine ECU Key + Lock 05E907309 DSG
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Mercedes W207 W212 W906 Engine Diesel 200A 14V Alternator Generator LRA03818
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BMW 3 Series E92 Max Brose Footwell Light Module Control Unit ECU FRM3R 9224598
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Audi Q2 GA 35 TDI DTTC 150HP Quattro Engine ECU Kit 05L907309B Ignition + Key
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BMW E87 LCI E90 118d 318d N47 Diesel ECU DDE CAS3 Key 7807828 Automatic Gearbox
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BMW F22 F30 LCI Control Unit Airbag ECU NO CRASH DATA 9348728
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Ford Galaxy Mondeo Transit Relay 4-Pin Black FoMoCo Unit 6G9T-14B192-BA
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Audi Q7 4L Radio Aerial Antenna Amplifier AM/FM 4L0035225
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Volkswagen Golf Mk5 Caddy Mk3 Gateway Control Unit Module 7N0907530AK
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Mercedes W639 OM651.940 136HP Engine Unit Module ECU Kit A6511501879 Key Lock
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COMAND Head Unit Mercedes CLA C117 W176 W246 Nav Sat Radio Player A2469000616
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BMW X5 E53 X3 E83 Four Wheel Drive Transfer Box Control Unit Module 7550891
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BMW X5 Series E53 Electrical Power Distribution Fuse Box 6907395
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BMW F20 F30 116i 316i N13 136HP Engine ECU KIT DME 8614302 + FEM + 2 Keys
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Starter Mercedes W204 W212 W906 Diesel OM651 Starter Motor Bosch A6519062800
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BMW E81 Footwell Light Module Control Unit ECU BASIS PL2 FRM3R 9224588
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Mercedes Sprinter W906 SAM Module Fuse Box Relay Control Unit A9069006701
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Mini Cooper R55 R56 R57 LCI Engine Wiring Harness Loom DDE 7823706
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Audi A8L 4H Power Positive Distribution Junction Jumper Box Housing 4H0911075B
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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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Audi A6 C6 Allroad Adaptive Suspension Module Software Control Unit 4F0907553A
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Parking Control Module Mercedes C118 W177 W247 PDC Bluetooth Unit A0009004434
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Mercedes W205 Center Console Ambient Lighting Light Wiring Harness A2055402324
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BMW E81 E82 E87 LCI E88 N47S 123d ECU Kit DDE 7811702 + CAS3 + Key Automatic
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Mercedes C117 W176 A180 W246 M270 Engine Wiring Harness Cable Loom A2701501633
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Audio Amplifier Mini R55 R56 Alpine Hi-Fi System Amplifier Booster 2153319
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Audi A6 C6 Door Module Front Driver's Side Control Unit ECU 4F0959793R
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Audi A3 8V Engine Starter Motor Actuator Starter 0AM911023G
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BMW 1 3 Series F20 F21 F30 Wiring Loom Harness Injection Valve Ignition 7608804
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Mercedes A238 Fuse Box Control Unit SAM Module Relay A2139003029
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Audi A4 B9 Front Door Module Control Unit Passenger Side 8W0959592G
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Engine Wiring Mercedes W212 Diesel OM651 Cable Loom Harness A6511505933
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Mercedes C207 E250 CDI BE OM651.911 Engine Unit Module ECU Kit A6519005301 Key
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Audi A3 S3 8V VW Golf 7 Seat Leon 3 Parking Assist PDC Control Module 5QA919283A
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BMW X3 E83 LCI M47N2 2.0d 150HP ECU Kit DDE 7805349 Manual Transmission
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Alternator Generator Mercedes W415 OM607 Diesel Engine 150A 14V 231004554R
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Vauxhall Opel Insignia A 2.0 CDTI Alternator Engine Genarator 13579668
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BMW 5 Series E60 E61 Radio M-ASK M-Audio System Controller CD Player 6955348
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Mercedes R171 Convertible Roof Top Control Unit Module ECU A1718204226
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Audi A5 8T 2.0 TDI CNHA Diesel Engine Motor Starter 04L911021
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BMW E90 Max Brose Footwell Light Module Control Unit ECU FRM3R 9241008
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BMW Z4 E89 Convertible Top Roof Module Control Unit ECU 7206761
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Mercedes W205 Head Unit Radio CD Player Audio Sat Nav Multimedia A2059003729
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Ford Transit Mk7 Body Control Module Unit FS JCT PLN ECU CC1T-14A073-CC
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BMW F10 F11 Rear Bumper PDC Wiring Loom Cable Harness F01 F12 9336380
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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 .