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. A2129006624
Fuse Box Mercedes W204 Front Relay Control Unit Module SAM A2129006624
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Mercedes W204 Rain Light Solar Condensation Sensor Control Unit A2048703526
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Mercedes W204 W212 Audio Amplifier Harman Kardon Control Unit A2129006226
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Mercedes Sprinter W906 Fuse Box Relay Module Control Unit A9065454401
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Mercedes C E Class W203 W211 Bluetooth Control Unit Module ECU A2118702726
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Battery Cover Mercedes C118 W177 W247 Upper Trim Housing Lid A2475400025
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Door Module Mercedes W204 W212 Front Left N/S Control Unit Module A2128203485
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Mercedes ML W164 Cable Loom Wiring Parking Sensors Rear Bumper A1645402405
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Mercedes CLK C209 Fuse Box Relay SAM Module Control Unit A2095452001
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Mercedes W203 W204 W211 Automatic Gearbox Transmission Control Unit A0034464110
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Mercedes-Benz X156 Front Bumper Pressure Crash Impact Sensor A1569056800
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Mercedes W204 Front Fuse Box Relay Module Sam Control A2129005712
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Mercedes W205 Head Unit Radio CD Player Audio Sat Nav Multimedia A2059003729
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Mercedes W204 PDC Sensor Wiring Loom Harness Front Bumper A2044400035
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Mercedes W176 W246 Comfort Module Central Gateway Control Unit VST A1769001101
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ESP Sensor Mercedes W164 W221 Yaw Rotation Rate Sensor A0055422018
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Fuse Box Mercedes W212 Control Unit Power Distribution Electrical A2125407050
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Mercedes W204 Automatic Gearbox EGS Control Module Unit ECU A0005454516
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Fuse Box Mercedes W211 CLS C219 Rear SAM Module Relay Control Unit A2115458601
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Mercedes Vito W639 Sprinter W906 CD Audio Stereo Radio Head Unit A9068200886
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Mercedes Vito Viano W639 Fuse Box Cover Trim Panel Lid Housing A6395450403
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Mercedes W204 Dashboard Cover Speedo Speedometer Trim Panel Black A2046890939
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Mercedes-Benz W169 W204 W207 Auxiliary Additional Backup Battery A2115410001
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Bowden Cable Mercedes W639 Rear Right O/S Sliding Door Handle Catch A6397602004
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Mercedes-Benz C CLK W203 C209 Sam Control Module Fuse Box Rear A2035453201
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Mercedes W204 Estate PDC Wiring Rear Bumper Parking Sensor Cable A2044404732
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Mercedes W203 C209 Yaw Sensor ESP Rotation Rate Control Unit Module A0035429818
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Mercedes W176 W204 W207 Fuel Pump Module Petrol Control Unit ECU A0009000104
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Trim Panel Mercedes W176 Rain Sensor Light Solar Condensation Cover A1768210136
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SD Card Mercedes W213 C238 C253 Garmin Map Pilot Navi Europe 15 / 16 A2139062604
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Module Mercedes W177 W247 Instrument Cluster Control Module A2479001608
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Mercedes Vito W639 Cover Fuse Box Case Trim Panel Lid A6395400182
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Part no. A6014010325
Mercedes W901 W905 Sprinter Wheel Hub Cap A6014010325
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Part no. A1648207926
Mercedes ML W164 Air Module SRS Control Unit ECU A1648207926
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Part no. A2048704658
Mercedes W204 Radio Control Function Button Knob Controller Unit A2048704658
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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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Mercedes ML W164 Front Left Control Unit Module Door A1648203785
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Part no. A4159009200
Mercedes W415 Citan Control Unit Module Electronic A4159009200
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Part no. A2129005722
Mercedes W204 SAM Module Fuse Box Relay Control Unit A2129005722
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Part no. rhd-A2045421518
Mercedes W204 Negative Cable Battery Terminal Wiring A2045421518
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Bowden Cable Mercedes W906 Rear Sliding Door Opener Cable Wire A9067600404
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Audio Amplifier Mercedes W211 CLS C219 AMP Becker Sound Module Unit A2118706689
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Mercedes W205 W217 W222 Tailgate Trunk Control Module Unit A2229006008
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Mercedes W203 ECU Control Unit Crash Impact Sensor Module Airbag A2038700026
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Mercedes W204 W212 Fuel Pump Module Control Unit ECU AMG C63 A0009003500
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Mercedes W639 OM651.940 136HP Engine Unit Module ECU Kit A6511501879 Key Lock
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Mercedes W204 W211 W212 S212 Engine Starter Motor A2719060200
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Part no. A0009067900
Alternator Mercedes W204 W212 Diesel Engine OM651 Valeo 180A A0009067900
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Part no. A2095452432
Mercedes W203 Parktronic Parking Sensor Warning Display Screen A2095452432
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Battery Cable Mercedes Vito W639 Negative Lead Wiring Harness A6395460121
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Part no. A2059009427
Mercedes W205 Front Air Module SRS Control Unit ECU A2059009427
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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. A6394460442
Mercedes Vito W639 Air Module System Control Unit A6394460442
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Part no. A1729016600
Mercedes W204 Display Screen Radio Multimedia Navigation Sat Unit A1729016600
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Mercedes V177 Multi-Purpose Windscreen Camera Control Unit Module A2479003108
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Mercedes W204 COMAND Navigation CD Player Radio Sat Nav Head Unit A2049005212
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Mercedes W204 Dashboard Navigation Central Display Screen Monitor A2048204697
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Battery Relay Mercedes W211 CLS W219 Module Control Unit 12V A0025426419
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Part no. A2129006824
Front Fuse Box Mercedes W204 S204 Relay Control Unit SAM Module A2129006824
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Mercedes W176 W204 C207 C218 W246 Fuel Pump Control Module A0009001803
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Part no. A2215402862
Mercedes W221 Fuse Box Front SAM Module Relay Control Unit A2215402862
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Mercedes-Benz C W203 Front Bumper Parking Sensor Wiring Loom Cable Harness
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Part no. A0009054603
Radar Sensor Mercedes W166 W176 W246 Front Control Unit Module A0009054603
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Mercedes V177 Head Unit Media Player Audio Radio Controller A1679001014
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Mercedes W211 W220 ESP Yaw Rotation Rate Sensor A0025426618
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Part no. A1698700689-1
Mercedes W169 W245 Head Unit CD Player Radio Stereo Audio Player A1698700689
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Part no. A2049069701
Radio Player Mercedes W204 Audio 20 Navi CD Player Head Unit A2049069701
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Part no. A2219006902
Mercedes Class W221 Rear Fuse Box Control Unit Module SAM A2219006902
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Part no. A9068200286
CD Radio Mercedes Vito W639 Sprinter W906 Audio Stereo Head Unit A9068200286
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Part no. A0009062822-1
Mercedes W207 W212 W906 Engine Diesel 200A 14V Alternator Generator LRA03818
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Part no. A2125406250
Mercedes-Benz W212 SAM Fuse Prefuse Box Relay Control Unit A2125406250
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Part no. A6399000800
Mercedes Vito W639 Fuse Box Relay Control Unit Front SAM Module A6399000800
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Part no. A6395450191
Mercedes Vito W639 Positive Battery Terminal Cover Cap Trim Red A6395450191
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Mercedes-Benz CLC-Class CL203 Fuse Box Module SAM Unit A2035454901
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Mercedes W203 CL203 Roof Alarm Motion Sensor Cover Trim Black A2038219751
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Part no. A2469068601
Battery Junction Block Mercedes W176 W246 Battery Plus Pole Terminal A2469068601
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Mercedes W213 Mechatronic Automatic Gearbox Control Unit Module A7252701905
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Part no. A6395450232
Mercedes Vito W639 PDC Parking Distance Control Unit Module ECU A6395450232
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Part no. A2115408645
Mercedes W211 Battery Module Trunk Relay Control Module Unit A2115408645
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Part no. a0045468040
Mercedes W204 W212 W221 Power Distributor Box Conectors Socket A0045468040
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Part no. A2129007104
Mercedes W212 SAM Module Control Unit Electrical Fuse Box Unit A2129007104
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Part no. A2048207785
Mercedes W204 Rear Left Door N/S Control Unit Module A2048207785
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Mercedes W212 Rear Suspension Level Sensor Wiring Loom Cable Harness A2125402705
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Mercedes W169 W245 Aerial Roof Antenna Radio Control Unit Module A1698202675
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Mercedes W212 Fuse Box Front Relay Control Unit Module SAM A2129009025
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Gearbox Module Mercedes SLK R171 Automatic Transmission Unit EGS A0325453132
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Mercedes W203 W204 W212 OM642 Glow Plug Relay Unit Control Module A6429002700
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Mercedes W212 Cover Fuse Box Trim Panel Lid A2125400382
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Mercedes W204 CD Player Radio Stereo Navigation Sat Nav Head Unit A2049009410
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Mercedes W176 Front Crash Impact Airbag Sensor Pressure Sensor Unit A1769051000
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Mercedes Vito W447 Fuse Box Cover Trim Panel Lid Housing A4475400082
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Distance Radar Module Mercedes W177 W205 W253 Front Distronic Unit A0009053011
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Mercedes W212 Display Screen Information Navigation Dashboard A2129002216
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Part no. A1648202679
Mercedes ML W164 Radio Player Audio Stereo CD Player Head Unit A1648202679
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Part no. A0009822723
Mercedes W205 Estate Fuse Relay Box Module Control A0009822723
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Part no. A2711500391
Mercedes W204 C180 M271.820 156HP Engine ECU Kit A2711500391 Key Lock Automatic
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Part no. A0009003210
PDC Module Mercedes W176 W246 Parking Assist Distance Control Unit A0009003210
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Part no. rhd-A2479008311-1
Mercedes W177 Dash Monitor Display Speedo SAT NAV Virtual Cockpit A2479008311
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Part no. A2661541202
Mercedes-Benz A B Class W169 W245 Alternator Generator Petrol 90A A2661541202
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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 .