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. A6461540002
Mercedes Sprinter W906 OM646 Engine Diesel Alternator Generator A6461540002
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Mercedes V177 Seat Control Module CSMM Front Right O/S A2479005807
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Part no. A2515400524
Mercedes W251 Fuse Relay Electrical Box Housing Cover A2515400524
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Mercedes ML W166 Diesel OM642 Engine Automatic Transmission Wiring Harness
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Mercedes W221 S500 Audio Amplifier Sound System Control Module A2218205289
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Part no. A2229005415
Mercedes W205 W213 W222 Comunication Module Telematic Bluetooth A2229005415
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Part no. A1408202526
Mercedes C140 Seat Belt Module Control Unit ECU A1408202526
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Part no. A1698700689-3
Mercedes W169 W245 CD Player Radio Stereo Head Unit A1698700689
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Part no. A2045450369
Mercedes S204 Fuse Box Terminal Connection Unit A2045450369
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Part no. A6519007703
Mercedes W906 Glow Plug Relay Module Unit A6519007703
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Part no. A2649001000
Mercedes W205 Petrol Engine Alternator Electrical Cable A2649001000
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Part no. A2049060405
Mercedes W204 Front Fuse Board Box Relay Unit Case A2049060405
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Microphone Mercedes W447 W907 W910 Hands-free Interior Mic Unit A4478200035
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Part no. A2115409910
Mercedes W211 Multimedia Wiring Loom Electrical Harness Cable A2115409910
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Part no. A2215401682
Mercedes W221 Cover Fuse Box Case Trim Panel Lid A2215401682
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Part no. A6461500477
Mercedes W906 311 CDI 646.985 109HP Engine Unit Module ECU A6461500477 Manual
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Part no. A0025426419
Battery Relay Mercedes W211 CLS W219 Module Control Unit 12V A0025426419
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Part no. A0325452332
Mercedes CLK W209 Automatic Gearbox EGS Control Unit Module ECU A0325452332
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Part no. A2118204497-1
Radio CD Player Mercedes W211 CLS C219 COMAND Navigation Head Unit A2118204497
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Part no. A0305454632
Mercedes-Benz M-Class ML W163 Gearbox Transmission Control Unit ECU A0305454632
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Part no. A0009058104
Radar Unit Mercedes W176 W205 W246 GLC C253 Front Bumper Sensor A0009058104
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Part no. A2389000401
Mercedes C238 E53 Coupe Window Lifter Comfort Module Unit Rear A2389000401
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Part no. A2139001223
Mercedes W205 Ignition Control Unit A2139001223
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Part no. A6519009402
Mercedes W245 B200 CDI Blue Efficiency OM651.901 Engine Unit ECU A6519009402
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Part no. A9065403627
Positive Cable Mercedes W906 Battery Starter Alternator Plus A9065403627
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Part no. A9069000501
Mercedes W906 Door Module Front Left Right N/O/S Control Unit ECU A9069000501
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Part no. A2129004222-1
Mercedes W207 A207 SAM Control Unit Module Fuse Box Rear A2129004222
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Part no. A6398200942
Mercedes-Benz Vito W639 Radio Fan Adapter Control Unit Module A6398200942
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Part no. A2389000501
Mercedes A238 Convertible Folding Top Roof ECU Module Control Unit A2389000501
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Part no. A4475460064
Mercedes W447 Fuse Box Module Cover Trim Trunk A4475460064
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Part no. A2048208185
Rain Sensor Mercedes W204 Light Solar Condensation Control Unit A2048208185
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Part no. A2135401115
Fuse Box Mercedes W205 W213 GLC X253 Hybrid Power Distribution Unit A2135401115
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Part no. A1715450101
Mercedes SLK R171 Fuse Box SAM Relay Control Unit Module A1715450101
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Part no. A0061510601
Mercedes W164 M113 Petrol Engine Starter Motor A0061510601
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Part no. A2118200089
Mercedes-Benz E W211 Radio Aerial Antenna Amplifier Module Unit A2118200089
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Part no. A2479061803
Mercedes W177 W247 Battery Fuse Box Positive Distribution Terminal A2479061803
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Part no. A6395450301-1
Mercedes W639 Fuse Box Relay Control Unit Electric Module SAM A6395450301
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Part no. A1649004101
Mercedes ML W164 Passenger Side Control Unit Module Fuse Box SAM A1649004101
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Part no. A9069006701
Mercedes Sprinter W906 SAM Module Fuse Box Relay Control Unit A9069006701
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Part no. A6399000800
Mercedes Vito W639 Fuse Box Relay Control Unit Front SAM Module A6399000800
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Part no. A1729060205-1
Mercedes SLK R172 Rear SAM Fuse Relay Box Control Unit Module A1729060205
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Part no. A2038204002
Mercedes-Benz CLC CL203 Rear Left Right Door Loudspeaker Speaker A2038204002
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Part no. A1775400630
Parking Sensor Wiring Mercedes W177 V177 Rear Bumper PDC Loom Cable A1775400630
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Part no. A2098205026
Mercedes W209 Convertible Roof Module Folding Top Control Unit ECU A2098205026
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Part no. A0009010201
Mercedes Vito W639 Airbag SRS Module Control Unit ECU Air Bag A0009010201
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Part no. A2139006227
Gearbox Module Mercedes W205 W213 GLC X253 Control ECU Automatic A2139006227
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Part no. A2038703594
Mercedes CL203 CLC Head Unit CD Player Radio Audio Controller Unit A2038703594
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Part no. A6421506434-1
Mercedes W251 R 320 CDI 642.950 224HP Engine ECU Kit A6421506434 Keys Lock
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Part no. A1669006120
Mercedes ML W166 GLE C292 SAM Module Control Unit ECU A1669006120
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Part no. A2218230050-1
Mercedes W221 Centre Console Telephone Keypad Control Unit Module A2218230050
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Part no. A9065450003-2
Mercedes Sprinter W906 Fuse Box Cover Trim Panel Lid Grey A6395450003
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Part no. A1678201302
Mercedes W167 W256 USB Charger Connecting Unit A1678201302
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Part no. A2045842982
Mercedes W204 Fuse Box Grouping Fuse Placement Map Card Diagram A2045842982
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Part no. A9064402341
Positive Cable Mercedes W906 OM651 Battery Starter Alternator Plus A9064402341
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Part no. A2709002100
Mercedes W176 W246 A180 B180 BlueEFFICIENCY 270.910 122HP Engine ECU A2709002100
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Part no. A0065424218
Mercedes Sprinter W906 Turn Rate Sensor Module Control Unit A0065424218
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Part no. A1729006609
Mercedes SLK R172 Radio CD Player Sat Nav Comand Head Unit A1729006609
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Part no. A9065452101
Fuse Box Mercedes Sprinter W906 SAM Control Unit Module A9065452101
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Part no. lhd-A2215400224
Mercedes W221 S500 OM273 Fuse Relay Box Module Housing Cover A2215400224
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Part no. A0999008701
Mercedes W177 Steering Column Control Module A0999008701
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Part no. A6421508100-2
Mercedes W251 R 350 CDI 642.950 224HP Engine Unit ECU Kit A6421508100 Key + Lock
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Part no. A6429002700
Mercedes W203 W204 W212 OM642 Glow Plug Relay Unit Control Module A6429002700
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Part no. A2045401307
Mercedes W204 Centre Console Lightning Dashboard Cable Wiring A2045401307
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Part no. A2129068800-1
Radio Head Unit Mercedes W212 COMAND Navi CD DVD Player Control Unit A2129068800
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Part no. A1665408332
Mercedes W166 Parking Sensor Wiring Loom Cable Harness Front PDC A1665408332
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Part no. A2115459001
Fuse Box Mercedes W211 W219 Junction Relay Control Unit Module SAM A2115459001
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Part no. A2229007009
Mercedes W205 SAM Module Comfort Control Unit ECU A2229007009
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Part no. A2139000407
Mercedes W213 Air Con Conditioning Module A/C Climate Control Unit A2139000407
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Part no. A0061514501-1
Starter Motor Mercedes W204 W212 Sprinter W906 OM651 Diesel Engine A0061514501
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Part no. A9079001703
Display Screen Mercedes W907 W910 Head Unit Touch Monitor 7" A9079001703
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Part no. A0009053816
Mercedes C118 W117 Battery Cable Negative Terminal Wiring A0009053816
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Part no. A0009052702
Mercedes W169 W204 W212 Battery Cable Negative Lead Wiring Harness A0009052702
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Part no. A2118705189
Sound Amplifier Mercedes W204 W211 W212 C219 Audio Harman Becker AMP A2118705189
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Part no. A0009009903
Mercedes W212 E63 AMG Drive Unit Extended Control Module ECU A0009009903
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Part no. A2139002522
Control Unit Mercedes W213 W217 Front Right O/S Door Control Module A2139002522
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Part no. A9069004700-1
Mercedes Sprinter W906 Fuse Box SAM Control Unit Module A9069004700
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Part no. A0061510501
Mercedes W203 W204 Petrol Engine Starter Motor A0061510501
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Part no. A2229063202
Fuse Box Mercedes W205 W222 Electrical Relay Box Module Unit A2229063202
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Part no. A2048703526
Mercedes W204 Rain Light Solar Condensation Sensor Control Unit A2048703526
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Part no. A2119820402
Mercedes CLS W219 Battery Fuse Box Control Unit Module A2119820402
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Part no. A1765406109
Wiring Harness Mercedes W176 A45 AMG Petrol M133 Low Temperature Pump Adapter
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Part no. A1718203926
Mercedes A B Class W169 W245 Rain Light Sensor Control Unit Module A1718203926
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Part no. A0009063622
Mercedes W166 W204 R231 Alternator Generator 180A 14V A0009063622
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Part no. A2049007408
Mercedes W204 Display Screen Information Navigation Dashboard A2049007408
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Part no. A2128270028-OB
Mercedes S212 Roof Antenna Estate Shark Trim Obsidian Black - 197 A2128270028
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Part no. A1698207126
Door Module Mercedes W169 W245 Front Left N/S Control Unit A1698207126
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Part no. A1699001600
Mercedes-Benz W169 W245 48V Technology SAM Control Module Fuse Box A1699001600
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Part no. A0009004434
Mercedes W177 W247 Telematics Bluetooth Module Control Unit ECU A0009004434
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Part no. A6519000601-5
Mercedes W906 313 CDI OM651 129HP Diesel Engine Control ECU A6519000601 Manual
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Part no. A4479000601
Mercedes Vito W447 Rain Light Sensor Control Unit Module A4479000601
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Part no. A2129002627
Mercedes W212 Fuse Box Relay Module Control Unit A2129002627
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Part no. A1648203785
Mercedes ML W164 Front Left Control Unit Module Door A1648203785
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Part no. A0009062302-1
Starter Motor Mercedes W639 W906 Diesel Engine A0009062302 0986024530
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Part no. A2115457301
Mercedes C219 Front Fuse Box SAM Relay Control Module A2115457301
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Part no. A2059000328
Door Module Mercedes GLC X253 Front Door Left Control Module A2059000328
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Part no. A0009050538
Mercedes-Benz S-Class W221 Multi Purpose Camera Control Unit Module A0009050538
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Part no. A1718205826
Mercedes SLK R171 Air Module Bag SRS Control Unit ECU A1718205826
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Part no. A2115401805
Battery Cable Mercedes W211 OM647 Starter Alternator Wiring Harness A2115401805
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Part no. A2711500391-6
Mercedes R172 BlueEFFICIENCY 271.861 184HP Engine ECU Kit A2711500391 Keys Lock
Product currently unavailable
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 .