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. A9069004401
Mercedes Sprinter W906 Radio Multimedia Head Unit Player Audio A9069004401
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Mercedes W213 Ignition Control Unit Module ECU A2139003710
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Mercedes Sprinter W903 Fuse Box Relay Electrical Box Unit A9015400350
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Mercedes W203 OM646 Diesel Engine Wiring Harness Loom Cable A6461502233
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Mercedes SLK R172 Battery Cable Starter Alternator Wiring Harness A1725400233
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Mercedes W203 W639 Audio 10 CD Player Audio Stereo Radio Head Unit A2038202686
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Mercedes W204 Fuse Box Relay Control Unit Electric Module SAM A2045455401
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Part no. rhd-A6461503456
Mercedes W204 OM646 Diesel Engine Wiring Harness Loom Cable A6461503456
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Mercedes W213 Bluetooth Module Multimedia Control Unit ECU A2138203202
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Mercedes GLE 250 AM Tailgate Trunk Control Module Unit A1669008512
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Gateway Module Mercedes C216 W221 Central Control Unit A2215406462
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Mercedes W205 Tire Pressure Control Module A0009006907
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Mercedes R171 W204 W212 Starter Motor Bosch M272 Engine Petrol A0061516001
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Mercedes W204 Navigation CD Player Radio Stereo Sat Nav Head Unit A2049005810
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Mercedes GL W164 Radio Player Audio Stereo CD Player Head Unit A1648707889
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Headlight Ballast Mercedes ML W164 GL X164 Xenon Control Unit Module A1648704126
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Mercedes W176 180 CDI OM607.951 Blue Efficiency ECU Kit A6079002300 Key Lock
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Alternator Mercedes Vito W639 OM646 Engine Alternator Generator A0131542102
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Part no. A2139003208
Mercedes W213 SAM Module Rear Body Comfort Control Unit ECU A2139003208
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Part no. A1569002901
Mercedes W204 C63 AMG 457HP M156.985 Engine Unit ECU Kit A1569002901 Key Lock
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Alternator Generator Mercedes W204 W212 OM651 14V 180A Engine Electrical Unit
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Part no. A9068201486
Mercedes Vito W639 Sprinter W906 CD Audio Stereo Radio Head Unit A9068201486
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Fuse Box Mercedes W210 R170 Multifunctional Relay Fuse Unit Module A2105400072
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Passenger Seat Module Mercedes W164 W203 W211 Memory Control Unit A2118705026
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Part no. A1765401602
Mercedes W176 Rear Bumper PDC Wiring Parking Sensor Loom Harness A1765401602
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Mercedes W164 Sound Audio Amplifier Harman Becker Control Unit A2518209589
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Part no. 281151545R
Mercedes Citan W415 Radio Audio Player Stereo Head Unit USB BT MP3 281151545R
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Part no. A6519003603
Mercedes Sprinter W910 314 CDI OM651.958 143HP ECU Engine Unit A6519003603
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Part no. A2035450803-1
Mercedes CL203 W203 Battery Terminal Fuse Box Control Unit Module A2035450803
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Part no. A2711541402
Mercedes W203 W204 M271 Engine Alternator Generator Valeo 120A 14V A2711541402
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Part no. A6519007003-2
Mercedes GLA 220d X156 4matic 651.930 177HP Engine ECU Kit A6519007003 Automatic
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Part no. A6519007600-2
Mercedes W176 A200 CDI BlueEFFICIENCY OM651.901 Engine Module ECU A6519007600
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Mercedes S211 Rear Axle Self Levelling Device Cable A2115405332
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Part no. A2189062903
SD Card Mercedes W176 W207 W212 Garmin Map Pilot Navigation Europe A2189062903
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Part no. A1669003507
Mercedes W166 Air Suspension Control Unit Module ECU A1669003507
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Part no. A2129005627
Radio Head Unit Mercedes C207 W212 COMAND Navi CD Player Navigation A2129005627
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Part no. rhd-A2789060700
Mercedes W213 Engine Starter Motor A2789060700
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Part no. A0009051302
Mercedes W166 W176 W246 Radar Sensor Front Control Unit Module A0009051302
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Part no. A0999008701
Mercedes W177 Steering Column Control Module A0999008701
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Part no. A1699010100-2
Fuse Box Mercedes W169 W245 SAM Body Control Module Unit ECU A1699010100
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Part no. A4479001707
Mercedes Vito W447 Comfort SAM Control Unit Module Fuse Box A4479001707
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Part no. A2116842518
Mercedes-Benz E-Class S211 Trim Cover Battery Anthracite A2116842518
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Part no. A6519000603-2
Mercedes W205 C220d 651.921 170HP Engine Unit ECU Kit A6519000603 Key SAM
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Parking Sensor Mercedes W169 W245 PDC Distance Control Unit Module A1699007400
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Mercedes W221 Door Control Module Unit ECU Front Right O/S A0038206426
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Radar Sensor Mercedes W213 C238 Front Collision Warning Module Unit A0009057011
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Part no. A6549001300
Glow Plug Relay Mercedes W213 C238 Diesel OM654 Preglow Module A6549001300
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Part no. A2669000000
Mercedes-Benz W169 W245 Alternator Generator Starter Control Unit A2669000000
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Part no. A9075406849
Mercedes Sprinter W907 Ground Line Battery Earth Cable Wire A9075406849
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Part no. A1645402305
PDC Wiring Mercedes ML W164 Front Bumper Parking Sensor Loom Cable A1645402305
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Part no. A1645400350
Mercedes-Benz M-Class ML W164 Fuse Prefuse Box Jump Start Terminal A1645400350
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Part no. A6519007500-23
Mercedes W204 C207 W212 E250CDI OM651.924 204HP Engine ECU A6519007500 Automatic
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Part no. A2469002318
Radio Head Unit Mercedes W176 Media Player Navigation Unit A2469002318
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Part no. A6421509478-1
Mercedes W164 ML320 OM642.940 Diesel Engine Unit ECU Kit A6421509478 + Keys
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Part no. A2114452600
Mercedes W211 Central Gateway Control Unit Module ECU A2114452600
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Part no. A1718207026
Mercedes SLK R171 Door Module Front Right Control Unit ECU A1718207026
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Part no. A1645401801
Mercedes ML W164 Rear Control Unit Module Fuse Box SAM A1645401801
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Part no. A6461507272-1
Mercedes W639 109CDI 646.980 Engine ECU Kit Ignition + Key + Lock A6461507272
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Part no. A2319052600
Mercedes R172 Security Alarm Interior Protection Sensor Module Unit A2319052600
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Part no. A1718204226
Mercedes R171 Convertible Roof Top Control Unit Module ECU A1718204226
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Part no. A1645400272
Fuse Box Mercedes ML W164 GL X164 Control Unit Module Relay A1645400272
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Part no. A9065400350
Mercedes Sprinter W906 Fuse Box Relay Electrical Rifle Box Unit A9065400350
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Part no. A2711504879-1
Mercedes W204 C180 Kompressor 271.952 156HP Engine ECU Kit A2711504879 Keys Lock
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Part no. A2138200400-1
Mercedes C205 W213 USB SD Card Module Multimedia Reader Port Socket A2138200400
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Part no. A2038700090
Mercedes W203 CD Media Player Radio COMAND Head Unit A2038700090
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Part no. A1729008600
Mercedes W204 Display Screen Multimedia Navigation Dashboard Unit A1729008600
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Part no. A1699002000-1
Mercedes W169 W245 CD Player Radio Audio Head Unit Player A1699002000
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Part no. A9079004905
Mercedes W907 Body Control Module Unit A9079004905
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Part no. A2075844181
Mercedes C207 Fuse Box Grouping Fuse Placement Map Card Diagram A2075844181
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Part no. A2479005709
Mercedes W177 W247 Electronic Control Unit Module Speedo Meter ECU A2479005709
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Part no. A0009822223
Mercedes W906 SAM Module Fuse Box Relay Control Unit Regulator A0009822223
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Part no. A0045452905
Mercedes Relay Fuse Unit Module 4 Pins Grey A0045452905
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Part no. A6519009702-3
Mercedes W176 A200d 651.930 136HP Engine Unit ECU A6519009702 Automatic
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Part no. A0005454316
Mercedes-Benz C W204 CDI Automatic Gearbox Control Module Unit ECU A0005454316
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Part no. A2129003922-1
Mercedes W212 Fuse Box Rear SAM Relay Control Unit Module A2129003922
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Part no. RHD-A1725403505
Mercedes R172 OM651 Starter HV Battery Wiring Harness Cable Loom A1725403505
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Part no. rhd-A1718201635
Mercedes SLK R171 Microphone Hands Free System Interior Mic Unit A1718201635
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Part no. A0009823108
Mercedes 12V Accumulator Battery 74Ah 680A A0009823108
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Part no. A2118210097
Mercedes E-Class W211 Front Door Wiring Loom Harness Rubber Grommet A2118210097
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Part no. A2115453101
Mercedes W211 Fuse Box Control Unit SAM Module Relay A2115453101
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Part no. A2059067904
Mercedes W205 DRL Ballast Headlight Control Unit Right O/S Module A2059067904
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Steering Lock Cable Mercedes W169 W204 Connector Plug Wiring Loom A0495453128
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Radio Player Mercedes-Benz W204 COMAND Navi CD Head Unit A2048700196
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Microphone Mercedes W447 W907 W910 Hands-free Interior Mic Unit A4478200035
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Mercedes SLK R171 Airbag Module Air Bag SRS Control Unit ECU A1718205626
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Mercedes W221 Trunk Release Remote Open Close Module Control Unit A2218706185
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Mercedes W204 W212 Radio Control Function Button Knob Controller A2048709558
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Part no. A6549007900
Mercedes W177 A 220d 654.920 654920 190HP Engine ECU Unit A6549007900 Automatic
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Mercedes W251 R 350 CDI 642.950 224HP Engine Unit ECU Kit A6421508100 Key + Lock
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Part no. A1669068201
Fuse Box Mercedes GLE W166 C292 W463 Relay Control Unit Module A1669068201
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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. A2049062102-1
Mercedes W246 W205 W176 Engine Cooling Radiator Fan Control Unit Module
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Part no. A2469067901-1
Battery Positive Mercedes C117 W176 W246 Plus Pole Terminal Lead A2469067901
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Part no. A4479009509
Mercedes W447 114CDI SAM Comfort Control Unit Module Box ECU A4479009509
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Part no. A2129004718
Door Module Mercedes W212 Front Right Control Unit Module A2129004718
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Part no. A0009062000
Mercedes W212 W221 Blind Spot Radar Sensor Rear Left Right N/O/S A0009062000
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Part no. A2129008404-1
Radio Head Unit Mercedes W212 COMAND Navi CD DVD Player Navigation A2129008404
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Part no. A1729002601
Mercedes SLK R172 Door Control Unit Module Front Right O/S A1729002601
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Part no. A1645404301
Mercedes W164 SAM Module Comfort Control Unit A1645404301
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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 .