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. A0025422319-1
Mercedes Universal TYCO Relay Module 12V V23134-B52-X309 A0025422319
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Mercedes ML W164 Audio Stereo Radio CD Player Head Unit A1648705094
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Mercedes W204 W212 Windscreen Rain Sensor Control Unit A2049017801
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Starter Motor Mercedes W204 W212 W639 OM651 Diesel Engine DENSO A6519060026
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Engine Wiring Mercedes W176 W246 Diesel OM607 Loom Harness Cable A6071500133
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Mercedes Vito W639 Automatic Gearbox EGS Control Unit Module ECU A0015455716
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Mercedes W205 GLC X253 Distronic Radar Sensor Control Unit Module A0009059013
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Mercedes C140 CL420 119.981 279HP Engine Unit ECU A0215452032 Automatic Gearbox
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Mercedes W204 Display Screen Radio Multimedia Navigation Sat Unit A1729016600
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Mercedes-Benz W245 ECU Control Unit Sensor Module Airbag A1698206726
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Mercedes ML W164 Air Module System Control Unit A1648209585
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Radar Sensor Mercedes W176 W207 W246 Front Control Unit Module A0009052804
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Mercedes W203 C200 Kompressor M271.940 163HP Engine ECU A2711534691 Automatic
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Mercedes W164 ML 280 CDI 642.940 190HP Engine Unit ECU Kit A6421509678 Key Lock
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Mercedes-Benz A-Class W176 Cover Equipment Electrical Fuse Box A2465403803
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Control Panel Mercedes W212 Comand Navi CD Switch Push-Button A2128702751
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Engine Wiring Mercedes W204 W212 M271 Petrol Harness Loom Cable A2711504233
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Radio Head Unit Mercedes W176 W246 Audio 20 Media Player Navigation A2469008819
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Mercedes-Benz W202 C208 Roof Alarm Motion Sensor Cover Trim Grey A2086900028
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Mercedes W639 3.0CDI OM642.990 Engine Control Unit ECU A6421501500 Automatic
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Starter Motor Mercedes W639 W906 Diesel Engine A0009062302
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Mercedes W212 E350 CDI OM642.850 Engine Control Unit Module ECU A6429002900
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Engine Wiring Mercedes W169 W245 Loom Cable Harness Injector Module A6401503733
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Mercedes GLC X253 Rear Trunk Lid Automatic Closing Lock Mechanism A2059007218
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Part no. A1729006503
Mercedes SLK R172 Roadster Folding Roof Module Vario Control Unit A1729006503
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Starter Motor Mercedes W176 W246 Engine Starter Unit 12V Denso A6459060300
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Mercedes-Benz CLK W208 Front Left Right Door Wiring Loom Harness A2085405606
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Part no. A6511503633
Mercedes W212 OM651 Diesel Engine Wiring Harness Loom Cable A6511503633
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Yaw Module Mercedes W221 ML W164 Rotation Rate Acceleration Sensor A0045423818
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Starter Motor Mercedes W204 W212 W639 OM651 Diesel Engine Starter A6519060026
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Part no. A0285454032
Mercedes W203 W210 W220 DIesel Glow Plug Relay Module Unit A0285454032
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Part no. A2711540802
Mercedes W203 W211 C209 M271 Petrol Alternator A2711540802
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Part no. A6398201226
Mercedes Vito W639 Door Front Right O/S Control Unit Module ECU A6398201226
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Navigation Processor Mercedes W176 W212 Control Unit Module NTG 4.5 A1728100011
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Mercedes ML W164 Gateway Control Unit Gateway Module ECU A1645406745
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Part no. A0025422519
Mercedes W168 W169 W245 Blue Relay 4-Pin Tyco A0025422519
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Part no. A1669002307
Mercedes ML W166 PDC Parking Distance Control Unit Module Sensor A1669002307
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Part no. A6429002900-3
Mercedes W207 E350 CDI BlueEfficiency OM642.836 Engine Module ECU A6429002900
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Starter Motor Mercedes W906 M272 Engine Diesel Bosch A0061511001
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Mercedes W166 W221 Auxiliary Additional Generator Battery A0049820008
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YAW Rate Sensor Mercedes W203 W209 R171 Accelerator Speed Module A0045429218
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Mercedes W204 Rear SAM Module Fuse Box Relay Control Unit A2049060205
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Mercedes SLK R172 Dashboard Screen Multimedia Display Monitor A1729011402
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Mercedes W213 C238 Air Suspension Valve Block Control Unit Module A0993200258
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Control Unit Mercedes W169 W245 SAM Module Relay Fuse Box A1695456332
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Part no. A2118704926
Seat Module Mercedes W164 W203 W211 C219 Front Memory Control Unit A2118704926
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Part no. A1698202185
Mercedes-Benz A-Class W169 Airbag System Control Unit Module ECU A1698202185
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Part no. A4479060117
Mercedes Vito W447 Front Fuse Box Relay Control Unit Module A4479060117
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Part no. A2118702626
Air Module Mercedes W211 CLS C219 SRS Control Unit ECU A2118702626
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Part no. A2539006905
Mercedes GLC X253 Central Display Dashboard Infotainment Screen A2539006905
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Mercedes W164 OM629 Diesel Engine Motor Wiring Loom Cable Harness A6291501933
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Mercedes W906 311CDI OM646.985 109HP Engine Unit Module ECU A6461506378 Manual
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Mercedes Sprinter W906 Mechatronic Automatic Gearbox Control Unit A9062700060
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Mercedes CLS W219 Head Unit CD Player Navigation Radio Audio Unit A2119060700
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Mercedes W211 Door Module Front Right O/S Control Unit ECU A2118702085
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Mercedes ML GLC W164 X164 W204 Additional Backup Battery 12V 1.2Ah N000000004039
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Seat Module Mercedes W176 W246 Control Unit Front Left Right N/O/S A1669008506
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Part no. A6395450301-2
Mercedes W639 Fuse Box Relay Control Unit Electric Module SAM A6395450301
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Mercedes W213 OM654.920 Automatic Transmission Control Unit Module A2139002501
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Mercedes W204 Display Screen Multimedia Navigation Dashboard Unit A1729008600
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Mercedes-Benz C-Class W203 Fuse Box Control Unit Module SAM A2035452901
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Mercedes Sprinter W907 W910 Control Unit Module ECU A9079005303
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Mercedes CLA C117 W166 Head Unit Sat Nav Navigation Display Screen A1669001420
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Part no. A0015422623
PDC Display Mercedes W639 Front Parking Sensor Screen Control Unit A0015422623
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Part no. A1635457932
Mercedes ML W163 Transfer Box Control Unit Module ECU A1635457932
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Part no. A2095451101
Fuse Box Mercedes W203 W209 Front Relay Control Unit Module SAM A2095451101
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Part no. A0051512901
Mercedes ML W163 Engine Starter Motor A0051512901
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Part no. A2049014504
Rain Sensor Mercedes W204 W212 Windscreen Control Unit A2049014504
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Part no. A2479009412
Bluetooth Module Mercedes W247 W447 Multimedia Control Unit ECU A2479009412
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Part no. A9066200131
Mercedes-Benz Sprinter W906 Battery Tray Housing Box Case A9066200131
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Part no. A0035421819
Mercedes C205 Fuse Box Relay Control Unit Module A0035421819
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Mercedes-Benz W169 W245 Door Module Front Left N/S Control Unit A1698208326
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Display Screen Mercedes W176 W246 Radio Navigation Sat Nav Head Unit A2469013702
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Part no. A1645400701
Mercedes ML W164 Rear SAM Module Control Unit Fuse Box A1645400701
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Mercedes W169 W245 Petrol Engine Starter Motor M266 A0061510301
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Mercedes W204 W207 Centre Console Connector AUX USB Port Socket Trim A2078210411
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Mercedes W203 W209 W221 Windscreen Rain Sensor Control Module A2218702826
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Mercedes W205 GLC X253 Front Radar Sensor Module Control Unit A0009007907
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Display Mercedes C205 Dashboard Central Multimedia Car System Screen A2059002211
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Mercedes X253 Steering Wheel Contact Switch Control Plate A0994644206
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Mercedes SLK R172 GPS Navigation System Screen Display A1729006613
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Battery Junction Block Mercedes W176 W246 Battery Plus Pole Terminal A2469068601
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Mercedes W177 Automatic Gearbox Control Unit Module ECU A0009012604
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Mercedes C207 Parking Sensor Wiring Loom Cable Harness Front PDC A2074400208
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Mercedes W204 Fuse Box Rear Relay Control Unit Module SAM A2045458601
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Navigation Player Mercedes W211 W219 DVD CD Reader Control Unit A2208703589
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Mercedes W169 PDC Parking Sensor Distance Control Module Unit ECU A1695455332
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Mercedes W204 W212 E220CDI OM651 Diesel Engine Control Module ECU A6519005301
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Mercedes CLK W209 Radio CD Player Stereo Audio Head Unit A2098700289
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Engine Wiring Mercedes W204 OM651 Diesel Harness Loom Cable A6511500156
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Part no. A0051511301
Mercedes W203 W211 Diesel Engine Starter Motor A0051511301
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Part no. A0025451901
Mercedes W210 Fuse Box Sam Module Control Unit A0025451901
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Mercedes ML W164 Lumbar Module Front Seat Control Unit A0009105202
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Part no. A6519007500
Mercedes W212 E220CDI OM651.924 Engine Unit Module ECU A6519007500 Automatic
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Part no. A0005456916
Mercedes W212 CDI Automatic Gearbox Control Module Unit ECU A0005456916
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Mercedes W124 E280 Comfort Control Module Unit ECU A2028200926
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Mercedes W221 Air Suspension ABC Control Unit Module A2219009603
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Part no. A4479000001
Mercedes W447 Front Door Module Left N/S Control Unit ECU A4479000001
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Mercedes W205 Display Screen Multimedia Navigation Sat Head Unit A2059000441
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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 .