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. A2515454132
Mercedes W164 W251 Air Suspension Level Control Unit Module Airmatic A2515454132
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Mercedes-Benz A-Class W168 M166 Engine Wiring Harness Loom Cable A1685403706
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Tuner Box Mercedes W207 W212 W218 Digital Audio Control Unit DAB ECE A2229002710
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Mercedes W168 W169 W245 Petrol Engine Starter Motor A0051512101
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Mercedes W177 W247 Battery Fuse Box Positive Distribution Terminal A2479061803
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Engine Wiring Mercedes W204 OM651 Diesel Harness Loom Cable A6511500156
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Mercedes SLK R172 Airbag Module SRS Control Unit ECU A1729015805
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Steering Lock Mercedes W176 W246 Control Unit Module VST A0999004101
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Mercedes-Benz C CLK Class W203 C209 Fuse Box Cover Engine A2035450403
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Air Module Mercedes Vito W639 Sprinter W906 Control Unit ECU Sensor A9064461542
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SAM Module Mercedes CLK W209 C209 A209 Fuse Box Relay Control Unit A2095452801
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Rain Sensor Mercedes W211 W219 Windscreen Control Unit Module A2118701585
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Mercedes ML W164 Front Door Module Left N/S Control Unit ECU A1648200385
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Mercedes W204 W207 C218 W212 E220 Navigation 20 Control Module Unit A2079005400
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Mercedes W176 W207 W246 USB Interface Multimedia Adapter Connector A1728202100
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Mercedes ML W164 Air Module System Control Unit A1648209585
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Control Panel Mercedes W212 Comand Navi CD Switch Push-Button A2128702751
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Mercedes W169 W245 Petrol Engine Starter Motor A0061510301
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Mercedes-Benz ML W163 Parktronic Parking Control Unit Module A1635457432
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Mercedes C292 GLE 350d 4-Matic OM642.826 Engine Control Unit ECU A6429004701
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Mercedes-Benz M ML W163 Front Left Right Door Wiring Loom Harness A1635400534
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Radio Head Unit Mercedes W212 COMAND Navi CD DVD Player Navigation A2129008404
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Mercedes SLK R171 Door Module Front Left N/S Control Unit ECU A1718207126
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Mercedes Vito W639 Cover Fuse Box Battery Trim Panel Lid A6395450003
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Mercedes-Benz E-Class A207 W207 Convertible Air Module System Control Unit
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Mercedes W221 Power Supply Battery Control Module Unit A2215400401
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Fuse Box Mercedes W169 W245 Electrical Relay Control Module Unit A1695451740
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Mercedes-Benz W202 W208 W210 ESP + BAS Control Unit Module ECU A0315450732
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Bowden Cable Mercedes W639 Rear Right O/S Sliding Door Handle Catch A6397602004
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Mercedes W221 Door Module Front Right O/S Control Unit ECU A2219006404
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Distributor Box Mercedes W204 W207 W221 Connector Block Control Unit A0045467640
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Alternator Generator Mercedes R171 W209 W211 M272 Petrol Engine 150A A2721540002
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Mercedes W203 W211 Diesel Engine Starter Cable Wiring A2035401335
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Mercedes W167 W177 W247 Headlight Ballast Control Module Right O/S A2139007939
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Mercedes C238 Vehicle Dynamic Transmission Control Unit Module A2059001136
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Mercedes C204 Sound Audio Amplifier Unit Harman Becker A2129005213
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Mercedes Vito W639 Sprinter W906 CD Audio Stereo Radio Head Unit A9068201186
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Mercedes W204 Head Unit Radio CD Player Audio Sat Nav Control A2049001813
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Mercedes W169 W204 W212 Battery Cable Negative Lead Wiring Harness A0009052702
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Front Air Module Mercedes W205 X253 SRS Control Unit ECU A2059009627
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Mercedes-Benz A W168 Automatic Transmission Shifting Bowden Cable A1683700173
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Mercedes-Benz W169 W245 Door Module Front Left N/S Control Unit A1698208326
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Mercedes W251 W211 Air Suspension Control Module Unit ECU A2515450316
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Mercedes W177 Automatic Gearbox Wiring Loom Harness Cable A2517253714
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Mercedes-Benz C CLC Class CL203 S203 W203 Fuse Box Module SAM Unit A2035454701
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Mercedes-Benz C-Class W203 Door Control Module Unit Rear Left N/S A2038206526
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Mercedes W205 C350e Hybrid Electric Drive Battery High Voltage Wiring Harness
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Starter Motor Mercedes W639 W906 OM651 Engine Diesel Bosch A6519060000
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Part no. A6519000700
Mercedes W906 313 CDI OM651.955 129HP Diesel Engine ECU A6519000700 Manual
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Telematics Module Mercedes W213 H243 Communication Blutooth Control A2479004415
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Mercedes ML W164 Fuse Box Relay Control Unit Rear A1645403372
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Radio CD Player Mercedes W176 W246 Audio Navigation Stereo Head Unit A2469008214
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Mercedes W164 W204 W211 OM642 Diesel Alternator Generator A6421540402
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Air Module Mercedes W213 C238 C253 Control Unit ECU A2139008828
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Mercedes W204 C220 CDI 651.911 Engine Control Unit ECU A6519007500 Automatic
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Mercedes W212 Air Suspension Control Unit Module ECU A2125406462
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PDC Module Mercedes W205 X253 Parking Sesnor Assist Control Module A0009004710
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Starter Motor Mercedes W203 W210 W211 Diesel Engine Actuator A0051511301
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Mercedes Viano Vito W639 Wiring Harness Tailgate License Plate Lamp A6394404809
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Mercedes Vito Viano W639 Battery Cable Positive Wiring Harness A6735460011
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Mercedes W176 Multimedia Box Wiring Loom Electrical Harness A1765401201
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Mercedes ML W163 Fuse Box SAM Control Unit Module A1635450016
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Part no. A0131542102
Alternator Mercedes Vito W639 OM646 Engine Alternator Generator A0131542102
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Mercedes-Benz C-Class W203 Front Right Door O/S Control Unit Module A2038201285
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Mercedes W176 W205 W212 Voltage Converter Power Distributor Plug A0009820412
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Engine Wiring Mercedes W176 W246 Diesel OM651 Loom Harness Cable A6511502790
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Part no. A1729000614
SAM Module Mercedes SLK R172 Rear Fuse Relay Signal Actuation Module
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Part no. A0131540002
Alternator Mercedes W203 Diesel OM648 OM646 Engine ALternator 200A A0131540002
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Part no. A2048704658
Mercedes W204 Radio Control Function Button Knob Controller Unit A2048704658
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Door Module Mercedes C219 Front Left Door N/S Control Unit Module A2198200626
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Part no. A2048208185
Rain Sensor Mercedes W204 Light Solar Condensation Control Unit A2048208185
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Part no. A2135403038
Fuse Box Mercedes W205 W213 C238 Relay Module Control Unit A2135403038
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Part no. A2118701985
Mercedes W211 Door Module Front Left N/S Control Unit ECU A2118701985
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Seat Control Module Mercedes A172 A190 A197 A207 A231 ECU Unit A1729000402
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Mercedes W204 Door Module Control Unit Module Front Left N/S A2048704326
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Fuse Box Mercedes W211 Rear Trunk Module Relay Fuse Box SAM A2115455301
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Mercedes W447 Door Control Unit Front Right O/S A4479007806
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Part no. A0009007306
Mercedes W176 W204 W207 W212 W246 Fuel Pump Module Control Unit ECU A0009007306
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Rain Sensor Mercedes SLK R172 W204 Front Windscreen Control Unit A2049017901
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Mercedes W211 W219 Fuse Box Rear SAM Module Electrical Fuse Unit A2115459301
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Mercedes W203 W639 Audio 10 CD Player Audio Stereo Radio Head Unit A2038202686
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Mercedes-Benz A-Class W169 Airbag System Control Unit Module ECU A1698202185
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Mercedes W205 Parking Sensor Wiring Rear Bumper PDC Loom Cable A2055402992
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Mercedes W906 Cover Footwell Fuse Box Trim OBD Grey A9066880008
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Rear View Mirror Cable Mercedes W169 W245 Wiring Loom Harness A1695400706
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Mercedes Vito Viano W639 Side Sliding Door Control Unit Module ECU A6399000300
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Mercedes Sprinter W906 OM651 OM642 Diesel Adblue Control Unit ECU A0009002914
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Mercedes W164 W169 W211 W245 W906 6 Disc CD Changer Player A2118703889
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Mercedes-Benz Vito W639 Front Left Door N/S Lock Bowden Pull Cable A6397600604
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Mercedes-Benz C-Class W203 Airbag System Control Unit Module ECU A2038206385
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Mercedes Sprinter W901 OM602 Engine Control Unit ECU Module A0215455632 Manual
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Mercedes W169 Front Bumper Parking Distance Sensor Parktronic Polar Silver 761
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Alternator Generator Mercedes Vito W639 Sprinter W906 Engine Diesel A6461540102
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Mercedes W205 Display Screen Instrument Cluster Speedo Meter A2059004842
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Mercedes Vito W447 Control Unit Fuse Box Compartment Mount A4475450069
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Part no. A2711500391-7
Mercedes W204 C180 Engine Unit BlueEFFICIENCY 271.820 156HP ECU A2711500391
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Mercedes W447 W907 W910 Engine Control Unit Module ECU A6549009400
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Part no. A6519005301-14
Mercedes S212 E220CDI OM651.924 170HP Engine Control Unit ECU Kit A6519005301
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Mercedes W447 Front Door Module Left N/S Control Unit ECU A4479000001
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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 .