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. A0035429818
Mercedes W203 C209 Yaw Sensor ESP Rotation Rate Control Unit Module A0035429818
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Part no. A9069004700-1
Mercedes Sprinter W906 Fuse Box SAM Control Unit Module A9069004700
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Part no. A2038705089-1
Mercedes W203 CD Media Player Radio Audio 20 Phone Head Unit A2038705089
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Part no. A0009068802
Alternator Generator Mercedes Sprinter W906 Engine Diesel 180A 14V A0009068802
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Part no. A6399005400-1
Mercedes Vito W639 Fuse Box Relay Control Unit Electric Module SAM A6399005400
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Part no. A2129008007
Mercedes W204 SAM Module Fuse Box Relay Control Unit A2129008007
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Part no. A2049004711
Mercedes W204 Navigation CD Player Radio Sat Nav Head Unit A2049004711
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Part no. A2038701689
Mercedes CL203 Antenna Amplifier Control Module Unit Aerial Booster A2038701689
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Part no. A2129005213
Mercedes C204 Sound Audio Amplifier Unit Harman Becker A2129005213
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Part no. A2049060205
Mercedes W204 Rear SAM Module Fuse Box Relay Control Unit A2049060205
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Part no. A2129005722
Mercedes W204 SAM Module Fuse Box Relay Control Unit A2129005722
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Part no. A0009010201
Mercedes Vito W639 Airbag SRS Module Control Unit ECU Air Bag A0009010201
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Part no. A2539052100
Mercedes GLC C253 X253 Pedestrian Protection Pressure Crash Sensor A2539052100
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Part no. A2108205710
Mercedes-Benz C E Class W202 W203 W210 Windscreen Rain Light Sensor A2108205710
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Part no. A2038201786
Mercedes-Benz C-Class W203 CD Player Audio Stereo Radio Head Unit A2038201786
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Part no. A1695400762
Parking Module Mercedes W169 W245 PDC Distance Control Unit Sensor A1695400762
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Part no. A2098206126
Mercedes W209 Convertible Rain Light Sensor Windscreen Module A2098206126
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Part no. A2123200558
Mercedes W212 Valve Block AMG Air Suspension Control Unit Module A2123200558
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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. A2465403803
Mercedes-Benz A-Class W176 Cover Equipment Electrical Fuse Box A2465403803
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Part no. A6519003701-1
Mercedes W212 OM651.924 E220CDI 170HP Engine ECU Kit + Key + Lock A6519003701
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Part no. A2098205489
Mercedes W209 Radio Head Unit Media Player Navigation Screen A2098205489
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Part no. A0009008004
Parking Module Mercedes W207 W212 PDC Distance Control Unit ECU A0009008004
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Part no. A2129015706
Mercedes W212 Display Screen Multifunction Navigation Dashboard A2129015706
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Part no. A2079014200
Airbag Module Mercedes W207 C207 Coupe Air Bag SRS Control Unit ECU A2079014200
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Part no. A9065454301
Mercedes Sprinter W906 Fuse Box Relay Control Unit Module A9065454301
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Part no. A9069005504
Mercedes W906 Fuse Box Relay Control Unit Electric Module SAM A9069005504
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Part no. A0051511601
Mercedes W168 Vaneo W414 Diesel Engine Speed Starter Motor A0051511601
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Part no. A1685401130
Mercedes-Benz A W168 CDI Battery Terminal Positive Cable Wiring A1685401130
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Part no. A6461506378-1
Mercedes W906 311CDI OM646.985 109HP Engine Unit Module ECU A6461506378 Manual
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Part no. A6519002600-1
Mercedes W906 OM651.957 Diesel Engine ECU Kit Unit A6519002600 Key Lock Manual
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Part no. A6399003200
Mercedes Vito W639 Door Module Front Right O/S Control Unit ECU A6399003200
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Part no. A6399003100
Mercedes Vito W639 Door Module Front Left N/S Control Unit ECU A6399003100
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Part no. A6395450601-1
Mercedes W639 Fuse Box Relay Control Unit Electric Module SAM A6395450601
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Part no. A0325453232
Gearbox Module Mercedes S203 W203 C200 Automatic Control Unit ECU A0325453232
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Part no. A2035400330
Mercedes W203 Kompressor M271 Positive Battery Cable A2035400330
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Part no. A2095450701
Sam Unit Mercedes S203 W203 Rear Module Fuse Box A2095450701
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Part no. A2095420018
Mercedes-Benz C CLK Class W203 C209 ESP Yaw Rotation Rate Sensor A2095420018
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Part no. A2208274642-1
CD Changer Mercedes W203 W209 W220 6 Disc Player With Magazine A2208274642
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Part no. A0015422623
PDC Display Mercedes W639 Front Parking Sensor Screen Control Unit A0015422623
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Part no. A2469003114
Transmission Module Mercedes W176 W246 Control Unit ECU A2469003114
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Part no. A2098204526
Mercedes CLK W209 Convertible Roof Top Control Unit Module ECU A2098204526
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Part no. A2095451401
Fuse Box Mercedes CLK W203 W209 Front SAM Module Control Unit A2095451401
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Part no. A2095450901
Mercedes CLK W209 Convertible Fuse Box Rear SAM Module Control Unit A2095450901
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Part no. A1648203085
Mercedes ML W164 Window Windscreen Rain Light Sensor A1648203085
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Part no. A0009829508
Mercedes W205 W213 10Ah 170A Auxiliary Additional Generator Battery A0009829508
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Part no. A2049067702
Mercedes W204 Fuse Box Rear SAM Module Electrical Fuse Unit A2049067702
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Part no. A2038701489
Mercedes-Benz C-Class W203 Antenna Amplifier Control Module Unit A2038701489
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Part no. A2711502433
Engine Wiring Harness Mercedes W203 W211 M271 Loom Wiring Cable A2711502433
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Part no. A2465408032
Battery Cable Mercedes W176 W246 Positive Wiring Starter Harness A2465408032
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Part no. A2124403758
Mercedes W212 Front Bumper PDC Wiring Parking Sensor Loom Harness A2124403758
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Part no. A1698204789
Mercedes-Benz W169 W245 CD Player Radio Audio Head Unit A1698204789
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Part no. A0014460340-1
Mercedes W169 A150 M266.920 95HP Engine Control ECU Kit A0014460340 Automatic
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Part no. A6519007003
Mercedes W176 A200 CDI OM651 136HP Engine Module ECU Unit A6519007003 Automatic
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Part no. A2045458201
Mercedes W204 Rear Fuse Box Relay SAM Control Unit Module A2045458201
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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. A0325452332
Mercedes CLK W209 Automatic Gearbox EGS Control Unit Module ECU A0325452332
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Part no. A0009009903
Mercedes W212 E63 AMG Drive Unit Extended Control Module ECU A0009009903
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Part no. A2469054201
Mercedes CLA C117 W176 Aerial Booster Antenna Amplifier A2469054201
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Part no. A2038707089
Mercedes W203 Aerial Antenna Amplifier Module Unit A2038707089
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Part no. A1685400082
Mercedes-Benz A-Class W168 Control Box Unit Cover Front A1685400082
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Part no. A0034466040-2
Mercedes W169 A150 M266.920 95HP Engine Control Unit ECU Kit A0034466040 2 Keys
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Part no. A2129007104
Mercedes W212 SAM Module Control Unit Electrical Fuse Box Unit A2129007104
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Part no. A2098205026
Mercedes W209 Convertible Roof Module Folding Top Control Unit ECU A2098205026
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Part no. A4479001000
Mercedes Vito W447 Air Module Sensor Control Unit ECU A4479001000
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Part no. A2095452801
SAM Module Mercedes CLK W209 C209 A209 Fuse Box Relay Control Unit A2095452801
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Part no. A0051516601
Starter Motor Mercedes W203 W209 W211 W906 Engine Diesel A0051516601
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Part no. A2661540902
Alternator Generator Mercedes W169 W245 Engine 115A 14V A2661540902
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Part no. A6401502579-1
Mercedes W169 200CDI OM640.941 140 HP Engine Module ECU Kit A6401502579 Key Lock
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Part no. A6461532691-1
Mercedes Vito W639 109 CDI OM646.983 88HP Engine Module ECU Kit A6461532691
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Part no. A2721531291
Mercedes CL203 CLC 350 M272.960 272HP Engine Module ECU Kit A2721531291 2 Keys
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Part no. A6461503278
Mercedes Vito W639 OM646.982 109HP Engine Module ECU Unit A6461503278 Manual
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Part no. A1569005303
Mercedes W176 Body Control Module BCM Control Unit ECU A1569005303
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Part no. A6395407735
Mercedes Vito W639 OM646 Diesel Engine Wiring Cable Loom Harness A6395407735
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Part no. A2711504233
Engine Wiring Mercedes W204 W212 M271 Petrol Harness Loom Cable A2711504233
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Part no. A6461504233
Mercedes Sprinter W906 OM646 Diesel Engine Wiring Harness Loom Cable A6461504233
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Part no. A6394460332
Mercedes Vito Viano W639 Side Sliding Door Control Unit Module A6394460332
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Part no. A2215401601
Mercedes W164 W204 Fuel Pump Module Control Unit ECU Petrol A2215401601
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Part no. A6394460446
Mercedes Vito W639 PDC Parking Distance Control Unit Module ECU A6394460446
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Part no. A6395450232
Mercedes Vito W639 PDC Parking Distance Control Unit Module ECU A6395450232
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Part no. A0015455716
Mercedes Vito W639 Automatic Gearbox EGS Control Unit Module ECU A0015455716
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Part no. A6461540102-1
Alternator Generator Mercedes Vito W639 Sprinter W906 Engine Diesel A6461540102
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Part no. A9064408234
Mercedes W906 Positive Battery Cable Wiring Loom Harness A9064408234
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Part no. A0061517401-1
Mercedes Sprinter W906 Diesel Starter Motor Engine Valeo A0061517401
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Part no. A2711541402
Mercedes W203 W204 M271 Engine Alternator Generator Valeo 120A 14V A2711541402
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Part no. A0009052804
Radar Sensor Mercedes W176 W207 W246 Front Control Unit Module A0009052804
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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. A9064409913
Positive Cable Mercedes W906 OM651 Battery Starter Alternator Plus A9064409913
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Part no. A2098200085
Mercedes W209 Convertible Air Module SRS Control Unit ECU A2098200085
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Part no. A2035452901
Mercedes-Benz C-Class W203 Fuse Box Control Unit Module SAM A2035452901
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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. A2035453201
Mercedes-Benz C CLK W203 C209 Sam Control Module Fuse Box Rear A2035453201
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Part no. A1769051000
Mercedes W176 Front Crash Impact Air Module Sensor Unit A1769051000
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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. A2045421418
Mercedes-Benz A C W169 W204 Battery Negative Earth Cable Wiring A2045421418
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Part no. A1699001600
Mercedes-Benz W169 W245 48V Technology SAM Control Module Fuse Box A1699001600
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Part no. A0025426419
Battery Relay Mercedes W211 CLS W219 Module Control Unit 12V A0025426419
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Part no. A0009003706
Mercedes W207 W212 Parktronic Parking Control Unit Module A0009003706
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Part no. A2129005812
Mercedes S204 Estate SAM Module Fuse Box Relay Control Unit A2129005812
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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 .