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. A0131547002-1
Alternator Generator Mercedes W211 CLS C219 OM642 Diesel 14V 180A A0131547002
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Part no. A6421540502
Alternator Generator Mercedes W164 OM642 180A Electrical Unit Diesel A6421540502
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Part no. A6395400431
Mercedes Vito W639 Earth Cable Battery Terminal Wiring A6395400431
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Part no. A1695454332-1
Mercedes W169 W245 SAM Control Module Fuse Box Unit A1695454332
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Part no. A1679001014
Mercedes V177 Head Unit Media Player Audio Radio Controller A1679001014
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Part no. A0009058912
Mercedes W205 W213 C253 Battery Cable Negative Lead Wiring Harness A0009058912
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Part no. A1638201589
CD Changer Mercedes ML W163 6 Disc Changer With Magazine A1638201589
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Part no. A2115409605
Mercedes W211 Rain Light Sensor Control Unit Wiring Loom Cable A2115409605
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Part no. A0055422118
Yaw Sensor Mercedes R171 W203 W209 ESP Rotation Rate Unit Module A0055422118
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Part no. A2049007202
Mercedes W204 Navigation Radio CD Player Head Unit A2049007202
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Part no. A2219007401
Door Module Mercedes W221 Front Right O/S Control Unit A2219007401
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Part no. A2115400082
Mercedes S211 W211 Fuse Box Unit Cover Front A2115400082
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Part no. A1405420732
Mercedes C140 Headlight Module Ballast Relay Control Unit LCM A1405420732
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Part no. A1669005517
Mercedes W207 Telematic Communication Control Unit Module A1669005517
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Part no. A2711541402
Mercedes W203 W204 M271 Engine Alternator Generator Valeo 120A 14V A2711541402
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Part no. A6549009400-3
Mercedes W907 315CDI OM654.920 Engine Unit Module ECU Kit A6549009400 BCM + Key
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Part no. A2115459001
Fuse Box Mercedes W211 W219 Junction Relay Control Unit Module SAM A2115459001
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Part no. A2119820402
Mercedes CLS W219 Battery Fuse Box Control Unit Module A2119820402
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Part no. A0305454632
Mercedes-Benz M-Class ML W163 Gearbox Transmission Control Unit ECU A0305454632
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Part no. A0025422319-1
Mercedes Universal TYCO Relay Module 12V V23134-B52-X309 A0025422319
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Part no. A2048709558-1
Mercedes W204 W212 Radio Control Function Button Knob Controller A2048709558
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Part no. A0035422519
Mercedes-Benz A B Class W169 W245 Battery Relay Module Unit A0035422519
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Part no. A2465407932
Battery Starter Wiring Mercedes W176 W246 Harness Cable Positive A2465407932
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Part no. A2059009627
Front Air Module Mercedes W205 X253 SRS Control Unit ECU A2059009627
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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. A2479000910
Mercedes W177 W247 All Wheel Drive Control Unit Module ECU SG MFA2 A2479000910
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Part no. A0009050538
Mercedes-Benz S-Class W221 Multi Purpose Camera Control Unit Module A0009050538
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Part no. A2701503920
Mercedes W176 Oil Pump Adapter Solenoid Valve Wiring Harness M270 A2701503920
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Part no. A2215400901
Parktronic Module Mercedes W221 Parking Aid Sensors Control Unit A2215400901
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Part no. A2049060205
Mercedes W204 Rear SAM Module Fuse Box Relay Control Unit A2049060205
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Part no. A2038206385
Mercedes-Benz C-Class W203 Airbag System Control Unit Module ECU A2038206385
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Part no. A1648203885
Mercedes ML W164 Front Right Control Unit Module Door A1648203885
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Part no. A1718200726
Mercedes R171 SLK200 Module Front Door Left Control Module Unit A1718200726
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Part no. A6519005301-9
Mercedes C207 E250 CDI BE OM651.911 Engine Unit Module ECU Kit A6519005301 Key
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Part no. A6398201226
Mercedes Vito W639 Door Front Right O/S Control Unit Module ECU A6398201226
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Part no. A1665420018
Battery Cable Mercedes W176 Negative Lead Wiring Harness Control A1665420018
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Part no. A2035451003
Fuse Box Cover Mercedes W203 W209 Battery Terminal Housing Trim Cap A2035451003
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Part no. A2118701585
Rain Sensor Mercedes W211 W219 Windscreen Control Unit Module A2118701585
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Part no. A2168206526
Mercedes W221 Bluetooth Module Multimedia Control Unit ECU A2168206526
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Part no. A0009003706
Mercedes W207 W212 Parktronic Parking Control Unit Module A0009003706
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Part no. A2049014504
Rain Sensor Mercedes W204 W212 Windscreen Control Unit A2049014504
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Part no. A6421540402-1
Mercedes W164 W204 W211 OM642 Diesel Alternator Generator A6421540402
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Part no. A2479061803
Mercedes W177 W247 Battery Fuse Box Positive Distribution Terminal A2479061803
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Part no. A0325453232
Gearbox Module Mercedes S203 W203 C200 Automatic Control Unit ECU A0325453232
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Part no. A1699007400
Parking Sensor Mercedes W169 W245 PDC Distance Control Unit Module A1699007400
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Part no. A6401503733
Engine Wiring Mercedes W169 W245 Loom Cable Harness Injector Module A6401503733
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Part no. A2045403850
Mercedes W204 SAM Fuse Prefuse Box Relay Control Unit A2045403850
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Part no. A1638200726
Mercedes ML W163 Window Windscreen Rain Light Sensor Module A1638200726
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Part no. A2055400840
Mercedes W205 W238 Fuse Box Cover Control Unit Holder Bracket A2055400840
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Part no. A1649004101
Mercedes ML W164 Passenger Side Control Unit Module Fuse Box SAM A1649004101
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Part no. A0009829508
Mercedes W205 W213 10Ah 170A Auxiliary Additional Generator Battery A0009829508
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Part no. A6399002900
Mercedes Vito W639 Door Module Front Left N/S Control Unit ECU A6399002900
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Part no. A0009829608
Mercedes W204 W212 W222 Auxiliary Additional Generator Battery A0009829608
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Part no. A0025424419
Mercedes Vito W639 Coolant Radiator Fan Relay Control Module A0025424419
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Part no. A1648207426
Mercedes ML W164 W251 Air Module SRS Control Unit ECU A1648207426
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Part no. A0009002720
Mercedes Sprinter W907 Parking Control Unit Module Sensor Parktronic A0009002720
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Part no. A2538206100
Mercedes GLC C253 Multimedia USB SD Card Reader Port Socket A2538206100
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Part no. A6519062800-1
Starter Mercedes W204 W212 W906 Diesel OM651 Starter Motor Bosch A6519062800
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Part no. A2049007408
Mercedes W204 Display Screen Information Navigation Dashboard A2049007408
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Part no. A2115457701
Fuse Box Mercedes W211 CLS C219 Front SAM Control Unit Module A2115457701
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Part no. A9064460542
Mercedes W639 W906 ECU Control Unit Sensor Module Air Module A9064460542
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Part no. A1699000500
Mercedes W169 W245 Door Control Module Front Left N/S A1699000500
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Part no. A6461504233
Mercedes Sprinter W906 OM646 Diesel Engine Wiring Harness Loom Cable A6461504233
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Part no. A0025426618
Mercedes W211 W220 ESP Yaw Rotation Rate Sensor A0025426618
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Part no. A1699010100
Mercedes W169 W245 Sam Control Module Fuse Box Unit A1699010100
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Part no. A6461540102-1
Alternator Generator Mercedes Vito W639 Sprinter W906 Engine Diesel A6461540102
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Part no. A2059000328
Door Module Mercedes GLC X253 Front Door Left Control Module A2059000328
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Part no. A2059001028
Door Module Mercedes GLC X253 Rear Door Right Control Module A2059001028
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Part no. A2139009020
Mercedes A238 Control Unit Module Amplifier Premium Sound A2139009020
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Part no. A0009052804
Radar Sensor Mercedes W176 W207 W246 Front Control Unit Module A0009052804
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Part no. A1695454332
Mercedes-Benz A B Class W169 W245 Sam Control Module Fuse Box Unit A1695454332
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Part no. A6395450601
Mercedes Vito W639 SAM Module Electric Control Unit A6395450601
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Part no. A9068200886
Radio Head Mercedes Vito W639 Sprinter W906 CD Audio Stereo Unit A9068200886
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Part no. A2129002627
Mercedes W212 Fuse Box Relay Module Control Unit A2129002627
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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. A2465403803
Mercedes-Benz A-Class W176 Cover Equipment Electrical Fuse Box A2465403803
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Part no. A1648207826
Mercedes W164 Door Module Front Right O/S Control Unit Module A1648207826
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Part no. A9075402705
Mercedes W907 Front Axle Brake Wear Indicator Loom Wiring Harness A9075402705
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Part no. A4479000101
Door Module Mercedes Vito W447 Rear Right O/S Door Control Unit A4479000101
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Part no. A2038707089
Mercedes W203 Aerial Antenna Amplifier Module Unit A2038707089
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Part no. A1569003203
BCM Module Mercedes W117 W176 W246 Body Control Module Unit ECU A1569003203
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Part no. A2139062610
SD Card Mercedes X156 W176 W205 Garmin Map Pilot Navigation Europe A2139062610
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Part no. A9069000004
Mercedes Sprinter W906 Radio Player CD Audio 10 Stereo Head Unit A9069000004
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Part no. A1765405905
Mercedes W176 Center Console Wiring Loom Electrical Harness A1765405905
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Part no. A2218205375-CS
Mercedes CLK S Class C209 W209 W221 Roof Antenna Shark Radio Silver A2218205375
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Part no. A6395407735
Mercedes Vito W639 OM646 Diesel Engine Wiring Cable Loom Harness A6395407735
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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. A2035453401
Mercedes C CLK Class W203 C209 Sam Control Module Fuse Box Rear A2035453401
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Part no. A2711540902-1
Alternator Generator Mercedes W203 W209 Engine M271 120A 14V A2711540902
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Part no. A0051511301-1
@Starter Motor Mercedes W203 W210 W211 Diesel Engine Actuator MAWS38371
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Part no. A2035400031
Mercedes CLK W203 C209 Negative Battery Terminal Cable A2035400231
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Part no. A2038201385
Door Module Mercedes CL203 W203 Front Left N/S Control Unit A2038201385
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Part no. A2038207385
Mercedes W203 ECU Control Unit Crash Impact Sensor Module Air Module A2038207385
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Part no. A6519007500-14
Mercedes W204 C200 CDI 651.913 136HP Engine Unit ECU Kit A6519007500 Automatic
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Part no. A9075450100
Fuse Box Mercedes Sprinter W907 W910 Relay Box Fuse Box Module A9075450100
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Part no. A6421507391
Mercedes W221 S320 CDI 642.930 235HP Engine Control ECU A6421507391 Automatic
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Part no. A6395450301
Mercedes W639 Fuse Box Relay Control Unit Electric Module SAM A6395450301
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Part no. A6399003101
Mercedes Vito W639 Door Module Front Left N/S Control Unit ECU A6399003101
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Part no. A2129008707
Mercedes W212 Display Screen Multifunction Dashboard Control Unit A2129008707
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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 .