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. A0009009903
Mercedes W212 E63 AMG Drive Unit Extended Control Module ECU A0009009903
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Mercedes-Benz C-Class W203 Fuse Box Control Unit Module SAM A2035452901
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Mercedes W207 W212 SAM Module Fuse Box Relay Control Unit A2129006924
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Front Fuse Box Mercedes W204 S204 Relay Control Unit SAM Module A2129006824
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Mercedes W907 Front Axle Brake Wear Indicator Loom Wiring Harness A9075402705
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Mercedes W204 W207 Air Suspension Module Regulation Control Unit A2049000607
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Mercedes W176 W246 Backup Battery Negative Minus Terminal Lead A2469069600
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Mercedes-Benz M-Class ML W163 Roof Towing Alarm Sensor Switch Module 16228382
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Mercedes W204 Fuse Box Relay SAM Control Unit Module A2129005912
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Door Module Mercedes W205 W213 C253 Control Unit Rear Right O/S A1679003718
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Mercedes W204 SAM Module Control Unit Electrical Fuse Box Unit A2129003825
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Ground Line Mercedes W221 Wiring Battery Starter Alternator Cable A2215409032
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ESP Module Mercedes W210 Electronic Stability Program Control Unit A0275455632
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Mercedes W212 Fuse Box Relay Module Control Unit A2129002627
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Mercedes-Benz C-Class W203 M111 C 180 C 200 K Engine Starter Motor A0051515301
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Mercedes W246 Air Module Control Unit ECU Module A2469000709
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Mercedes W211 Gearbox Module Transmission Control Unit A0355451532
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Mercedes W164 W169 W211 W245 Disc CD Changer A2118706189
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Mercedes W211 Central Gateway Control Unit Module Relay ECU A2115407545
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Mercedes-Benz M ML W163 OM612 Engine Wiring Harness Loom Cable A1635402810
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Alternator Generator Mercedes Vito W639 Sprinter W906 14V 180A Valeo A6461541102
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Door Module Mercedes W204 W212 Front Right O/S Control Unit A2129009328
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Mercedes W140 Seat Memory Control Unit Module Front Left N/S A1408201426
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Mercedes Sprinter W906 Battery Cover Frame Bracket Mount Holder A9065410740
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Mercedes W211 Door Module Front Right O/S Driver Control Unit ECU A2118208285
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Alternator Generator Mercedes W203 W209 Engine M271 120A 14V A2711540902
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Mercedes Vito W447 Radio Remote Control Alarm Key Fob Unit A4479058203
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Seat Module Mercedes W176 W246 Front Left N/S Memory Control Unit A1669008606
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Mercedes W211 Door Module Front Left N/S Driver Control Unit ECU A2118208185
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Mercedes W176 A200 CDI BlueEFFICIENCY OM651.901 Engine Module ECU A6519007600
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Alternator Mercedes Sprinter W906 Diesel OM646 Engine Alternator A6461540002
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Mercedes-Benz C ML W203 C209 W163 6 CD Changer Magazine Cartridge A0028206289
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Mercedes W177 Fuse Box Power Distribution Junction Relay Unit A1779061002
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Mercedes SLK R172 Radio CD Player Sat Nav Comand Head Unit A1729006609
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Mercedes W221 Fuse Box Control Unit SAM Module Relay A2215408745
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Mercedes Vito W639 Door Module Front Left N/S Control Unit ECU A6399003101
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Engine Wiring Mercedes W906 Diesel OM651 Cable Loom Harness A6511505120
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Mercedes ML W164 PDC Module Parking Distance Control Unit Sensor A1645450216
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Mercedes-Benz A W168 Door Cable Harness Wiring Loom Rear Left Right A1685402508
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Mercedes W221 Radio Multimedia Head Unit A2219006303
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Mercedes-Benz M ML W163 Front Bumper Fog Lamps Parktronic Wiring Loom Harness
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Mercedes ML W164 Distronic Radar Sensor Cruise Control Unit Module A2165402945
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Mercedes CLK W209 Fuse Box Relay Control Unit Module SAM Fuse Box A2095450001
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Mercedes W213 SD Card Garmin Map Pilot Navi Europe 2019 A2139062607
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Alternator Generator Mercedes W204 W211 OM646 Diesel Bosch 180A A0131549002
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Wiring Mercedes X164 Dashboard Lower Control Panels Switch Harness A1645403706
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Battery Wiring Mercedes ML W166 Battery Negative Terminal Cable Wire A1665420518
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PDC Wiring Mercedes ML W164 Front Bumper Parking Sensor Loom Cable A1645402305
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Mercedes H243 Bonnet Actuator Left Right N/O/S Pedestrian Protection A2479069901
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Chrysler Grand Voyager 2.8CRD Diesel 163HP Engine Unit ECU P04727770AC Automatic
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Mercedes W204 W207 W212 Alternator Generator Engine Diesel 180A 14V A0009067702
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Mercedes ML W164 Front Fuse Box SAM Relay Control Unit Module A1645400072
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Mercedes W204 S204 Estate Rear SAM Control Unit Module A2049001202
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Door Module Mercedes GLC X253 Front Door Left Control Module A2059000328
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Mercedes W221 Fuse Box SAM Module Control Unit Module ECU A2215403862
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Alternator Generator Mercedes W169 W245 Engine 115A 14V A2661540902
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Radio Head Unit Mercedes W212 COMAND Navi CD DVD Player Control Unit A2129068800
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Starter Motor Mercedes W203 W209 W211 W906 Engine Diesel A0051516601
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Mercedes ML W166 Door Control Module Unit ECU Front Right O/S A1669007609
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Mercedes C216 W221 Display Screen Multifunction Navi Command A2218206389
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Mercedes Citan W415 109 CDI OM607.951 Engine Control Unit ECU 237104376R Manual
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Mercedes W639 109CDI 646.980 Engine ECU Kit Ignition + Key + Lock A6461507272
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Mercedes W167 W256 USB Charger Connecting Unit A1678201302
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Mercedes-Benz C CLK E S Class W210 Changer Player A0028207989
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Mercedes CLC CL203 Trunk Lid Tailgate Left N/S Wiring Cable Harness A2035406609
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Part no. A2059061905
Mercedes W205 Centre Console Lighting Wiring Harness Cable Loom A2059061905
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Mercedes W205 Adblue Module Exhaust Gas Control Unit ECU BlueTEC SCR A0009006706
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Part no. A2035451701
SAM Module Mercedes W203 Fuse Box Control Unit Relay A2035451701
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Part no. A1698207826
Airbag Module Mercedes W169 W245 Air Bag Sensor Control Unit ECU A1698207826
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Adblue Module Mercedes W166 W212 R172 C218 C292 Control Unit ECU A0009003213
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Mercedes W169 W245 M266.920 95HP Engine Control ECU Kit A2661539779 Manual
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Battery Relay Mercedes W211 CLS W219 Module Control Unit 12V A0025426419
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SAM Module Mercedes W203 Fuse Box Control Unit Relay A2035453501
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Mercedes SL63 R231 Roadster Fuse Box Passenger Footwell Fuse Box A2315401050
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Mercedes Sprinter W906 Fuse Prefuse Box Relay Electrical Unit A0045450201
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Mercedes-Benz C W203 Rear Tailgate Boot Lid Wiring Harness Loom A2035408505
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Mercedes W204 W212 W222 Auxiliary Additional Generator Battery A0009827008
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Mercedes Vito W447 W639 Battery Terminal Protection Cap Cover A6395460035
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Body Control Module Mercedes Sprinter W907 W910 SAM BCM Unit ECU A9079000704
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Mercedes W205 Radio Audio Navi GPS Head Unit A2059007815
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Mercedes W156 W242 W246 W447 Relay 4-Pin Black Hella A0009822523
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Mercedes-Benz A W168 CDI Battery Terminal Positive Cable Wiring A1685401130
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Mercedes W906 Distributor Box Battery Cable Unit A0035464240
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Mercedes-Benz A-Class W168 Door Cable Harness Wiring Loom Rear A1685405908
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Mercedes-Benz E-Class W210 Battery Positive Plus Cable Loom Harness A2105401830
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Battery Cable Mercedes W176 W246 Positive Wiring Starter Harness A2465408032
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Mercedes W124 S124 Central Lock Control Unit Module A1248205926
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Mercedes-Benz C-Class S203 W203 Cable Rail Guide Sensors ABS A2035460180
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Radio Player Mercedes-Benz W204 COMAND Navi CD Head Unit A2048700594
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Mercedes W203 W209 Fuse Box Rear SAM Module Relay Control Unit A2035453801
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Centre Console Connector Mercedes W204 W207 USB Port Socket Trim A2078210411
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Door Module Mercedes W169 W245 Control Unit Front Right O/S A1699000400
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Mercedes W140 ABS Control Unit ASR + PML Module ECU A0185459132
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Starter Motor Mercedes W204 W212 OM651 Diesel Engine Bosch Starter A6519062400
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Mercedes Vito W447 114 CDI 136HP 651.950 Engine Unit ECU A6519002803 Automatic
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Mercedes W169 W211 W245 Sound Audio Amplifier Unit Harman Becker A2118703794
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Mercedes Vito W639 111 CDI 646.982 109HP Engine ECU Kit A6461532891 Key Lock
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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 .