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. A0009004301
Mercedes C204 C207 C214 C218 Module Fuel Pump Control Module Unit A0009004301
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Mercedes X156 GLA250 270.910 122HP Engine Control Unit Module ECU A2709000900
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Surround View Camera Mercedes W205 W447 Camera Control Unit Module A2059002629
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Mercedes W169 W245 Engine Starter Motor A0041518501
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Mercedes-Benz A B W169 W245 Starter Alternator Wiring Loom Harness A1694403805
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Mercedes Sprinter W901 W638 Fuse Box Relay Control Unit Module A0005400650
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Mercedes W211 W220 Crash Sensor Left Right N/O/S A0025426918
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Mercedes W211 Radio Head Unit CD Audio Player Control Unit A2118702889
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Head Unit Mercedes W167 W177 Audio Stereo Radio Player Control Unit A1679001414
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Mercedes GLC X253 220d OM651.921 170HP Engine Unit ECU Kit A6519006401 Automatic
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Mercedes SLK R172 Amplifier Audio Sound Control Unit Module Harman A1729008612
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Mercedes W169 W245 CD Player Radio Audio Head Unit Player A1698205189
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Mercedes W207 Front Bumper PDC Wiring Parking Sensor Loom Harness A2075406010
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Mercedes W169 W245 Rain Light Sensor Control Unit Wiring A1695401006
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Mercedes W212 Rain Light Solar Condensation Sensor Control Unit A2049014503
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Mercedes CL203 CLC Head Unit CD Player Radio Audio Controller Unit A2039000100
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Mercedes W205 Air System Control Unit Module ECU A2059001814
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Mercedes ML W164 Distronic Radar Sensor Cruise Control Unit Module A2165402945
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Mercedes Vito W447 Fuse Relay Box Module A4475405931
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Mercedes W212 E200 BlueEFFICIENCY M271.860 184HP Engine ECU A2711500391
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Mercedes W176 Door Harness Loom Cable Wiring Rear Left Right N/O/S A2465407711
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Mercedes C140 Seat Belt Module Control Unit ECU A1408202526
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Mercedes W176 W204 C207 C218 W246 Fuel Pump Control Module A0009001803
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Mercedes W246 Airbag Belt Locking Retractor Control Unit Module A2469006018
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Mercedes W205 W253 CD Radio Audio Sat Nav Navigation Head Unit A2059005036
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Seat Control Module Mercedes A172 A190 A197 A207 A231 ECU Unit A1729000402
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SAM Module Mercedes CLK W209 C209 A209 Fuse Box Relay Control Unit A2095452801
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Mercedes W212 E350 CDI OM642.850 Engine Control Unit Module ECU A6429002900
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Mercedes R172 R231 Headlight LED Ballast Control Unit Module A1769009203
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Mercedes W204 C207 W212 Earth Ground Cable Transmission To Body A2045407335
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Mercedes A B W169 W245 M266 Petrol Engine Wiring Harness Loom A2661502933
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Mercedes C207 Rear Radio Amp Sound Amplifier Audio Getaway Becker A2078205289
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Mercedes W906 Cover Footwell Fuse Box Trim OBD Grey A9066880008
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Mercedes R171 Convertible Roof Top Control Unit Module ECU A1718204226
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Mercedes W205 W213 W222 Comunication Module Telematic Bluetooth A2229005415
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Mercedes W204 Display Screen Information Navigation Dashboard A2049007408
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Part no. A2045455401
Mercedes W204 Fuse Box Relay Control Unit Electric Module SAM A2045455401
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Mercedes W221 Remote Trunk Closing Hydraulic Pump Motor Unit A2218001548
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Part no. A6429005601
Mercedes C207 Glow Plug Relay Unit Control Module A6429005601
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Part no. A2049003211
Mercedes W204 Stereo Radio Autoradio CD Player Head Unit A2049003211
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Mercedes-Benz A-Class W176 Mikrophone Roof Control Module A2468200035
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Mercedes ML W164 Remote Control DVD Media Entertainment Display A1648204189
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Mercedes Sprinter W906 Engine Wiring Loom Harness Cable CDI Diesel A6515460161
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Mercedes-Benz C-Class W203 W204 W211 Diesel Engine Starter Motor A0061512501
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Mercedes W168 Alternator Generator A0121544502
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Module Mercedes C205 Front Door Right O/S Control Module Unit A2229001614
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Part no. A2219007601
Mercedes W221 Front Door Module Right O/S Control Unit ECU A2219007601
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Part no. A0009058104
Radar Unit Mercedes W176 W205 W246 GLC C253 Front Bumper Sensor A0009058104
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Part no. A2389000401
Mercedes C238 E53 Coupe Window Lifter Comfort Module Unit Rear A2389000401
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Mercedes W639 116 CDI 651.940 163HP Engine Module ECU Kit A6519009302 Key Lock
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Mercedes C209 CLK220 CDI 646.966 Engine ECU Kit A6461505091 Keys Lock Automatic
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Part no. A6394460332
Mercedes Vito Viano W639 Side Sliding Door Control Unit Module A6394460332
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Part no. A2129006824
Front Fuse Box Mercedes W204 S204 Relay Control Unit SAM Module A2129006824
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Seat Module Mercedes W176 W246 Control Unit Front Left Right N/O/S A2468200526
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Wiring Mercedes W176 W242 W246 C117 Petrol M270 Engine Harness Loom A2701501533
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Mercedes C205 Fuse Box Relay Control Unit Module A0035421819
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Part no. A2129001227
Gateway Control Unit Mercedes W204 W212 Gateway Module ECU VST A2129001227
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Part no. A2129000406
Fuel Pump Module Mercedes W207 C207 A207 Control Unit ECU A2129000406
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Mercedes C118 W177 W247 Battery Box Trim Housing Cover Support A1776204201
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Mercedes W203 Fuse Box Rear SAM Module Relay Control Unit A2035450701
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Mercedes W212 Front Left Right N/O/S Seat Wiring Loom Cable Harness A2128205313
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ECU Module Mercedes W169 W211 W245 Yaw Rate Sensor Unit ESP A0045429118
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Module Mercedes W177 W247 Instrument Cluster Control Module A2479001608
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Mercedes SLK R171 Center Console Arm Rest Wiring Loom Harness A1715409333
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Mercedes X117 CLA 45 AMG 4-Matic M133.980 Engine Control ECU Kit A2709002100
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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. A6519002600-3
Mercedes W906 313 CDI OM651.955 129HP Engine ECU Kit A6519002600 Key Lock Manual
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Part no. A6401540502
Mercedes W169 W245 A B 160 180 200 CDI OM640 Alternator Generator A6401540502
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Part no. A2123200358
Mercedes-Benz S W221 Valve Block Air Suspension Control Unit Module A2123200358
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Part no. A9068201589
Mercedes Sprinter W906 Radio Stereo Audio Head Unit A9068201589
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Part no. A1648220230
Mercedes W164 W212 Alarm Sensor Warning Buzzer Module Unit A1648220230
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Part no. A0155457032
Mercedes W124 S124 Ignition Engine Control Unit Module A0155457032
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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. A1648200385
Mercedes ML W164 Front Door Module Left N/S Control Unit ECU A1648200385
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Part no. A2044401001
Parktronic Module Mercedes W204 PDC Parking Sensors Control Unit A2044401001
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Part no. A6519003403-4
Mercedes Sprinter W906 OM651.955 163HP Engine Unit Module ECU A6519003403 Manual
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Part no. A9075404687
Mercedes W907 Battery Cable Alternator Wiring Loom Harness Cabling A9075404687
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Part no. A2129004222-1
Mercedes W207 A207 SAM Control Unit Module Fuse Box Rear A2129004222
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Part no. A4709060300
Mercedes W470 Diesel Engine Starter Motor A4709060300
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Part no. A1645400072
Mercedes ML W164 Front Fuse Box SAM Relay Control Unit Module A1645400072
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Mercedes Sprinter W906 ECU Control Unit Sensor Module A9064461442
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Mercedes-Benz C ML W203 C209 W163 6 CD Changer Magazine Cartridge A0028206289
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Mercedes W118 W177 W247 Front Radar Distance Control Unit Module A0009056121
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Mercedes W211 Automatic Gearbox Transmission Module Control Unit ECU A0355454232
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Fuse Box Mercedes W212 Battery Terminal Control Unit Module A2125400450
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Mercedes W212 Rear Suspension Shock Left N/S Sensor Wiring Cable A2125402605
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CD Radio Mercedes W639 W906 Audio Stereo Head Unit A9069006001
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Bluetooth Module Mercedes W247 W447 Multimedia Control Unit ECU A2479009412
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Mercedes W204 W212 Front Windscreen Rain Light Sensor Control Unit A2048708826
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Audio Amplifier Mercedes W211 CLS C219 AMP Becker Sound Module Unit A2118706689
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Mercedes GLE250 W166 OM651.960 204HP Engine ECU Kit Ignition + Key A6519004201
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Part no. A2048700594-2
Mercedes W204 Radio Player COMAND Navi CD Head Unit A2048700594
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Fuse Pink Mercedes W415 Citroen Renault Kangoo Trafic Relay 4-Pin 8200308271
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Part no. A1698204085
Airbag Control Unit Mercedes W169 W245 System Module ECU A1698204085
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Part no. A2045404150
Fuse Box Mercedes W204 W212 SAM Relay Control Unit Module A2045404150
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Part no. A6421501500-2
Mercedes W639 3.0CDI OM642.990 Engine Control Unit ECU Kit A6421501500 Key Lock
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Part no. A2115458601-1
Fuse Box Mercedes W211 CLS C219 Rear SAM Module Relay Control Unit A2115458601
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Part no. A2139007939
Mercedes W167 W177 W247 Headlight Ballast Control Module Right O/S A2139007939
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Part no. A2049060305
SAM Module Mercedes W204 Control Unit Electrical Fuse Box Unit A2049060305
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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 .