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. A0285454032
Mercedes W203 W210 W220 DIesel Glow Plug Relay Module Unit A0285454032
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Rain Sensor Mercedes W211 C219 Front Windscreen Control Unit A2118705426
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Battery Cable Mercedes W176 W246 Positive Wiring Starter Harness A2465407732
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Fuse Box Mercedes W204 W212 SAM Relay Control Unit Module A2129006012
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Navigation Screen Mercedes W212 1 Head Unit Sat Nav Center Display A2129005000
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Alternator Generator Mercedes W204 W207 W212 Engine Diesel 180A 14V A0009067702
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Mercedes R171 Convertible Roof Top Control Unit Module ECU A1718204226
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Mercedes W168 Air Module Belt Locking System Sensor Control Unit Module ECU
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Mercedes W176 W246 Door Front Left N/S Control Unit Module ECU A1669004102
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Mercedes W204 Front Left Right N/O/S Seat Wiring Loom Cable Harness A2045401706
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Alternator Generator Mercedes R171 W209 M272 Petrol Engine 150A A2721540002
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Mercedes-Benz A B E W176 W212 W246 Fuel Pump Module Control Unit A0009006207
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Mercedes W203 W204 W211 Automatic Gearbox Transmission Control Unit A0034464110
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Mercedes Sprinter W906 Radio Player CD Audio 10 Stereo Head Unit A9069000004
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Mercedes W210 E200 Kompressor M111.957 163 HP Engine Control Unit ECU Automatic
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Battery Junction Block Mercedes W176 W246 Battery Plus Pole Terminal A2469068601
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Mercedes Vito W639 Fuse Box Relay Control Unit Electric Module SAM A6399005400
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Mercedes W166 W204 Display Screen Information Navigation Dashboard A1729008500
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Mercedes R171 Navigation Processor Multimedia Control Module Unit A2118701085
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Mercedes SLK R171 Air Module Bag SRS Control Unit ECU A1718205826
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Module Mercedes W639 Automatic Transmission Control Module Unit A0325453832
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Mercedes W639 Automatic Gearbox EGS Control Unit Transmission Module A0009001900
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Mercedes W221 Fuse Box Front Relay Control Unit Base Module A2215450001
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Mercedes ML W163 Seat Module Control Unit Front Left Right N/O/S A1635452132
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Mercedes W176 W246 Comfort Module Central Gateway Control Unit VST A1769001101
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Mercedes Vito W639 OM651.940 Diesel Engine Wiring Cable Loom Harness A6511501488
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Mercedes CLK W203 C209 Negative Battery Terminal Cable A2035400231
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Mercedes ML W163 270 CDI Engine Control ECU Kit Key Automatic A6121536379
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Mercedes-Benz A B W169 W245 Starter Alternator Wiring Loom Harness A1694403805
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Fuse Box Mercedes C118 W177 W247 Battery Relay Terminal A1775404107
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Alternator Mercedes Vito W639 Sprinter W906 14V 180A Generator Valeo A6461541102
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Part no. A2059004113
Mercedes S205 Display Screen Multimedia Navigation Sat Head Unit A2059004113
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Part no. A1569005303
Mercedes W176 Body Control Module BCM Control Unit ECU A1569005303
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Part no. A0065424218
Mercedes Sprinter W906 Turn Rate Sensor Module Control Unit A0065424218
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Mercedes C205 Fuse Box Relay Control Unit Module A0035421819
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Mercedes Vito W639 Air Module System Control Unit A6394460442
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Part no. A2098205026
Mercedes W209 Convertible Roof Module Folding Top Control Unit ECU A2098205026
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Part no. A2035407608
Mercedes-Benz C W203 Front Left Right Door Wiring Loom Harness A2035407608
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Part no. A6519060026-2
Starter Motor Mercedes W204 W212 W639 OM651 Diesel Engine Starter A6519060026
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Part no. A6397600704
Mercedes Vito W639 Front Left Door N/S Lock Bowden Pull Cable A6397600704
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Mercedes-Benz C-Class W203 Front Right Door O/S Control Unit Module A2038206426
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Mercedes W906 Fuse Box SAM Relay Control Unit Module A9065453001
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Mercedes-Benz C Class W203 Automatic Gearbox Transmission Control A0345454332
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Mercedes W203 Door Module Control Unit Front Left N/S A2038201585
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Part no. A2079003600
Mercedes C207 Coupe Module Rear Window Regulator Lifter Control Unit A2079003600
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Mercedes W212 Front Seat Headrest Display Screen Monitor Unit A2128205404
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Rain Sensor Mercedes SLK R172 W204 Front Windscreen Control Unit A2049017901
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Mercedes-Benz W169 Front Bumper Parking Distance Sensor Parktronic Polar Silver
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Part no. A2058200526
Mercedes W213 S213 Multimedia USB SD Card Reader Port Socket Module A2058200526
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Seat Module Mercedes W205 W253 Memory Control Unit Driver's Side A2059005122
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Parking Module Mercedes W203 C209 Parktronic Control Unit A2035454932
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Part no. A2048700196
Radio Player Mercedes W204 COMAND Navi CD Head Unit A2048700196
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Part no. A0035420318
Mercedes-Benz A B E Class W169 W211 W245 Sensor Module ECU A0035420318
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Part no. A2075406010
Mercedes W207 Front Bumper PDC Wiring Parking Sensor Loom Harness A2075406010
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Part no. A2129006624
Fuse Box Mercedes W204 Front Relay Control Unit Module SAM A2129006624
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Part no. A1715451301
Mercedes R171 Fuse Box Control Unit SAM Module Relay A1715451301
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Mercedes C209 Door Control Module Front Left N/S A2098201926
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PDC Wiring Mercedes W169 W245 Front Bumper Parking Sensor Loom Cable A1695403733
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Part no. A6429002900-3
Mercedes W207 E350 CDI BlueEfficiency OM642.836 Engine Module ECU A6429002900
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Mercedes R171 SLK200 Module Front Door Left Control Module Unit A1718200726
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Fuse Box Cover Mercedes W177 W247 Engine Compartment Housing Holder A2475407600
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Mercedes X218 CLS 350CDI OM642.853 Engine Control Unit ECU Kit A6421508900 Key
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Part no. A2129009705
Mercedes W204 W212 Fuse Box Relay Control Unit Electric SAM Module A2129009705
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Part no. A1715451901
Mercedes SLK R171 Fuse Box Rear SAM Relay Control Unit Module A1715451901
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Part no. A2139068601
Mercedes W205 W213 Actuator Drive Exhaust Flap Control Unit A2139068601
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Part no. A6421540502
Alternator Generator Mercedes W164 OM642 180A Electrical Unit Diesel A6421540502
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Part no. A2049069701-2
Mercedes W204 Radio Stereo CD Player Audio Sat Nav Head Unit A2049069701
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Part no. A9069000103
Mercedes Sprinter W906 Radio CD Player Audio Stereo Head Unit A9069000103
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Part no. A2049060105-2
Mercedes W204 SAM Control Unit Module Fuse Box Relay Rear A2049060105
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Part no. A2189005607
Radio Head Unit Mercedes W207 W212 COMAND Navi CD Player Navigation A2189005607
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Part no. A0999008701
Mercedes W177 Steering Column Control Module A0999008701
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Part no. A2058200526-1
SD Card Reader Mercedes W213 S213 Multimedia USB Port Socket Module A2058200526
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Part no. A2711502433
Engine Wiring Harness Mercedes W203 W211 M271 Loom Wiring Cable A2711502433
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Part no. A2095450032
Mercedes-Benz C S203 W203 Parking Sensor Distance Control Module A2095450032
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Part no. A1645406501
Mercedes ML W164 Front SAM Control Unit Module ECU A1645406501
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Part no. A2049009510-1
Mercedes W204 COMAND Navigation CD Player Radio Sat Nav Head Unit A2049009510
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Part no. A2139003217
Gearbox Module Mercedes W177 W205 W213 Control Unit ECU Automatic A2139003217
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Part no. A0009004810
Adblue Module Mercedes W205 W222 C253 Exhaust Gas Control Unit ECU A0009004810
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Part no. A9065400113
Mercedes-Benz Sprinter W906 Rear Door Licence Plate Lighting Wiring Cable
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Part no. A2038707089
Mercedes W203 Aerial Antenna Amplifier Module Unit A2038707089
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Part no. A0009068504
Alternator Mercedes Vito W447 Engine Generator 200A Valeo A0009068504
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Part no. A1765405408
Mercedes-Benz A-Class W176 Front Door Cable Wiring Loom Harness A1765405408
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Mercedes Sprinter W906 Fuse Box SAM Control Unit Module A9069004700
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Door Module Mercedes W169 W245 Front Left N/S Control Unit A1699000300
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Mercedes W245 Head Unit Radio CD Media Player Telephone Unit A1699002100
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Fuse Box Mercedes W211 W219 Junction Relay Control Unit Module SAM A2115459001
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Mercedes SLK R171 Roadster Fuse Box Control Unit SAM Module Relay A1715451301
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Mercedes W205 Harman Radio Stereo CD Player Audio Sat Head Unit A2059004236
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Mercedes W639 Rear Bumper PDC Wiring Parking Sensor Loom Harness A6394408637
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Mercedes-Benz M ML W163 Battery Positive Plus Terminal Lead Cable A1635401630
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Part no. A1699000100
Mercedes-Benz A B W169 W245 Front Left Door N/S Control Unit Module A1699000100
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Part no. A9069006701
Mercedes Sprinter W906 SAM Module Fuse Box Relay Control Unit A9069006701
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Part no. A1561540102
Mercedes W204 C63 AMG M156 Engine Alternator Generator BOSCH 180A A1561540102
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Part no. A2129003314
Mercedes W204 Front Fuse Box Relay Control Unit SAM Module A2129003314
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Part no. A1635460141
Mercedes-Benz M ML W163 Battery Positive Cable Wiring Connector A1635400269
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Part no. A2128702951-1
Control Panel Mercedes W212 Comand Navi CD Switch Push-Button A2128702951
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Part no. A6519003203-3
Mercedes W906 313 CDI OM651.955 129HP Diesel Engine ECU Kit A6519003203 Manual
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Part no. A2105451303
Mercedes-Benz E-Class W210 Positive Plus Cable Wiring Cover Cap A2105451303
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Part no. A0009003313
Adblue Module Mercedes W205 W222 W253 Exhaust Gas Control Unit ECU A0009003313
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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 .