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. A2139006016
Mercedes W213 C238 Air Suspension Level Control Unit Module Airmatic A2139006016
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Mercedes W169 W245 Engine Starter Motor A0041518501
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Mercedes W176 W246 180 CDI 607.951 109HP Engine Unit ECU Automatic A6079002300
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Mercedes W164 Gateway Control Unit Gateway Module ECU A1645402601
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Mercedes EQA H243 Relay High Voltage Performance DC 250 A Contactor A7899823000
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Mercedes ML W163 Module SAM Electronics Control Unit A1635457032
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Alternator Mercedes W203 Diesel OM648 OM646 Engine ALternator 200A A0131540002
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Mercedes W219 CLS350 CDI OM642.920 Engine Module ECU Kit A6421501230 Key Lock
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Part no. B6 787 5877
Mercedes-Benz C-Class W204 Bluetooth Hands-free Mobile Phone Adapter B6 787 5877
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Alternator Generator Mercedes W176 W246 Diesel Engine Bosch 175A A0009063822
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Mercedes W166 Junction Fuse Box Cover Housing Positive Terminal A1665450403
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Part no. A2115409910
Mercedes W211 Multimedia Wiring Loom Electrical Harness Cable A2115409910
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Part no. A0061516101
Mercedes ML W164 Diesel Engine Starter Motor A0061516101
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Part no. A2215408845
Mercedes W221 Gateway Control Unit Module ECU A2215408845
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Mercedes-Benz A-Class W176 CLA C117 Rear View Camera Control Module Unit ECU
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Mercedes W203 W204 W211 Automatic Gearbox Transmission Control Unit A0034464110
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Part no. A1769051600-1
Mercedes W176 Front Pressure Impact Crash Sensor Module With Hose A1769051600
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Part no. A0051510601
Starter Motor Mercedes W163 R170 W210 W901 Diesel Engine Actuator A0051510601
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Part no. A0018276604
Mercedes W207 Connection Media Interface Cable AUX Wire A0018276604
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Part no. A2124403758
Mercedes W212 Front Bumper PDC Wiring Parking Sensor Loom Harness A2124403758
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Part no. A1635400841
Mercedes W163 Battery Ground Earth Strap Cable Wiring A1635400841
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Part no. A6398201026
Mercedes Vito W639 Door Front Left N/S Control Unit Module ECU A6398201026
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Part no. A0008605903
Mercedes W204 Steering Wheel Air Module Driver's Side Black A0008605903
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Part no. A1698206626
Mercedes W169 W245 Airbag System Control Unit Module ECU A1698206626
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Part no. A0009829508
Mercedes W205 W213 10Ah 170A Auxiliary Additional Generator Battery A0009829508
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Part no. A2225404419
Mercedes W222 C238 C257 Electrical Wiring Harness Loom Cable A2225404419
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Part no. A2098206126
Mercedes W209 Convertible Rain Light Sensor Windscreen Module A2098206126
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Part no. A6429005601
Mercedes C207 Glow Plug Relay Unit Control Module A6429005601
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Part no. A9069820109-1
Mercedes W907 Positive Battery Terminal Cover Cap Trim Red A9069820109
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Part no. A2139008828
Air Module Mercedes W213 C238 C253 Control Unit ECU A2139008828
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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. A2078203426
Mercedes W204 C207 Rain Sensor Light Control Unit Front Windscreen A2078203426
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Part no. A2195406207
PDC Wiring Mercedes W211 W219 Front Bumper Parking Sensor Loom Cable A2195406207
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Part no. A1695420518-KMG
Mercedes W245 Front Bumper PDC Parking Distance Sensor Comet Grey - 748
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Part no. A1645402405
Mercedes ML W164 Cable Loom Wiring Parking Sensors Rear Bumper A1645402405
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Part no. A6511509000
Mercedes Sprinter W906 Diesel OM651 Engine Wiring Loom Harness A6511509000
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Part no. A2049012704
Mercedes W204 ECU Control Unit Crash Impact Sensor Air Module A2049012704
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Part no. A0365457032
Mercedes C209 W211 CLS C219 Steering Wheel Module Control Unit A0365457032
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Part no. A0051511601
Mercedes W168 Vaneo W414 Diesel Engine Speed Starter Motor A0051511601
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Part no. A0255453332
Mercedes W202 W210 Engine Cooling Radiator Fan Control Unit Module
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Part no. A2229005613
Rear View Camera Module Mercedes W205 W222 W253 Control Unit A2229005613
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Part no. A1669008512
Mercedes GLE 250 AM Tailgate Trunk Control Module Unit A1669008512
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Part no. A6511530879
Mercedes W906 OM651 Glow Plug Pre Heat Relay A6511530879
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Part no. A6395450232
Mercedes Vito W639 PDC Parking Distance Control Unit Module ECU A6395450232
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Part no. A1669005012
Mercedes W166 Front Door Module Left N/S Control Unit ECU A1669005012
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Part no. A2125406250
Mercedes-Benz W212 SAM Fuse Prefuse Box Relay Control Unit A2125406250
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Part no. A2215403250
Mercedes W221 Fuse Box Control Unit SAM Module Relay A2215403250
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Part no. A2464300210
Mercedes-Benz A-Class W176 Brake ABS Pump Holder Bracket Mount A2464300210
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Part no. A0018209726
Mercedes-Benz C CLK Class W203 W209 Airbag Control Unit Module ECU A0018209726
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Part no. A1729006613
Mercedes SLK R172 GPS Navigation System Screen Display A1729006613
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Part no. A2469009802
Mercedes W176 Radio Control Function Button Knob Controller Unit A2469009802
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Part no. A0051516501
Mercedes-Benz W203 W210 W220 M112 240 280 320 Engine Starter Motor A0051516501
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Part no. A1695400706
Rear View Mirror Cable Mercedes W169 W245 Wiring Loom Harness A1695400706
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Part no. A2218707493
Mercedes W221 Seat Control Module Front Right O/S A2218707493
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Part no. A1699000500
Mercedes W169 W245 Door Control Module Front Left N/S A1699000500
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Part no. A0009012604
Mercedes W177 Automatic Gearbox Control Unit Module ECU A0009012604
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Part no. A6519003603-2
Mercedes Sprinter W907 314 CDI OM651.958 143HP ECU Engine Unit A6519003603
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Part no. A4475450069
Mercedes Vito W447 Control Unit Fuse Box Compartment Mount A4475450069
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Part no. A0055421918
Yaw Module Mercedes W204 Rotation Rate Acceleration Sensor A0055421918
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Part no. A2711502433
Engine Wiring Harness Mercedes W203 W211 M271 Loom Wiring Cable A2711502433
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Part no. A2125400035
Earth Ground Cable Mercedes W204 W207 W212 Battery Starter Wiring A2125400035
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Part no. A0993200258
Mercedes W213 C238 Air Suspension Valve Block Control Unit Module A0993200258
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Part no. A1729006903
Seat Module Mercedes W204 W212 Control Unit Front Left Right N/O/S A1729006903
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Part no. A0025422319-1
Mercedes Universal TYCO Relay Module 12V V23134-B52-X309 A0025422319
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Part no. A0999008701
Mercedes W177 Steering Column Control Module A0999008701
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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. A1718200626
Mercedes R171 SLK200 Module Front Door Right O/S Control Module Unit A1718200626
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Part no. A2075401550-1
Mercedes W204 Battery Fuse Box Positive Distribution Terminal A2075401550
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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. A2118705226
Mercedes W211 W219 Navigation Reader DVD CD Player Control Unit A2118705226
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Part no. A2115420518
Mercedes W211 W219 Earth Ground Cable Battery Wiring Loom Engine A2115420518
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Part no. A2108207526
Mercedes W202 W210 Front Left Door Control Module A2108207526
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Part no. A7252701905
Mercedes W213 Mechatronic Automatic Gearbox Control Unit Module A7252701905
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Part no. A0009003313
Adblue Module Mercedes W205 W222 W253 Exhaust Gas Control Unit ECU A0009003313
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Part no. A2479005807
Mercedes V177 Seat Control Module CSMM Front Right O/S A2479005807
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Part no. A0025427619
Mercedes-Benz SLS ML G C197 W164 W463 Relay Fuse 5-Pin Green Hella A0025427619
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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. A0009829608
Mercedes W204 W212 W222 Auxiliary Additional Generator Battery A0009829608
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Part no. A0009006207
Mercedes-Benz A B E W176 W212 W246 Fuel Pump Module Control Unit A0009006207
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Part no. A0009001810
Windshield Camera Mercedes W166 R172 Driver Assist Front Camera A0009001810
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Part no. A2049017901-1
Rain Sensor Mercedes SLK R172 W204 Front Windscreen Control Unit A2049017901
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Part no. A0005427700
Mercedes GLE C292 Coupe Parking PDC Sensor Display Device Unit A0005427700
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Part no. A0005456916
Mercedes W212 CDI Automatic Gearbox Control Module Unit ECU A0005456916
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Part no. A0035429818
Mercedes W203 C209 Yaw Sensor ESP Rotation Rate Control Unit Module A0035429818
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Part no. A1698206726
Mercedes-Benz W245 ECU Control Unit Sensor Module Airbag A1698206726
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Part no. A6549001300
Glow Plug Relay Mercedes W213 C238 Diesel OM654 Preglow Module A6549001300
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Part no. A2056200018
Battery Box Bracket Mercedes W205 W213 W238 Trim Holder Right O/S A2056200018
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Part no. A6395400431
Mercedes Vito W639 Earth Cable Battery Terminal Wiring A6395400431
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Part no. A4479007706
Mercedes W447 Door Control Module Front Left N/S A4479007706
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Part no. A2048982614
Battery Cover Mercedes W204 W207 Trim Lid Panel A2048982614
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Part no. A0185454132
Mercedes W202 Ignition Engine Control Unit Module C180 M111 Petrol A0185454132
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Part no. A2115455232
Mercedes W211 Front Fuse Box SAM SRB Module Relay Control Unit A2115455232
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Part no. A9065451640
Mercedes-Benz Sprinter W906 Fuse Box Unit Holder Bracket Frame A9065451640
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Part no. A2048207785
Mercedes W204 Rear Left Door N/S Control Unit Module A2048207785
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Part no. A2229009708
Mercedes W205 Body Control Comfort Unit Module BCM Unit ECU A2229009708
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Part no. A2139008309
Mercedes W213 Front Seat Control Unit Module ECU A2139008309
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Part no. A2108200789
Mercedes-Benz E-Class W210 Estate Radio Aerial Antenna Amplifier A2108200789
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Part no. A2129006318
Door Module Mercedes W204 W212 Front Left N/S Control Unit Module A2129006318
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Part no. A2045420818
Mercedes-Benz A C W169 W204 Battery Negative Earth Cable Wiring A2045420818
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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 .