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. A6398201026
Mercedes Vito W639 Door Front Left N/S Control Unit Module ECU A6398201026
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Part no. A6421540402
Mercedes W164 W204 W211 OM642 Diesel Alternator Generator A6421540402
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Part no. A6511505520
Engine Wiring Mercedes W906 OM651.955 Euro 5 Cable Loom Harness A6511505520
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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. A2128702751
Control Panel Mercedes W212 Comand Navi CD Switch Push-Button A2128702751
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Part no. A2468200526
Seat Module Mercedes W176 W246 Control Unit Front Left Right N/O/S A2468200526
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Part no. A1698204185
Mercedes A B Class W169 W245 Airbag System Control Unit Module ECU A1698204185
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Part no. A9065454701
Mercedes W906 Fuse Box Relay Control Unit Electric Module A9065454701
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Part no. A0009068802
Alternator Generator Mercedes Sprinter W906 Engine Diesel 180A 14V A0009068802
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Part no. A2035400330
Mercedes W203 Kompressor M271 Positive Battery Cable A2035400330
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Part no. A9064460542
Mercedes W639 W906 ECU Control Unit Sensor Module Air Module A9064460542
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Part no. A0045420418
Mercedes-Benz C CLK Class W203 C209 ESP Yaw Rotation Rate Sensor A0045420418
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Part no. A0009063322
Alternator Generator Mercedes W176 W246 OM651 Diesel Engine 175A A0009063322
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Part no. A1669056001
Battery Cable Mercedes W176 W246 Negative Lead Wiring Harness A1669056001
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Part no. A2125407050-1
Mercedes W212 Fuse Box Control Unit Power Distribution Electrical A2125407050
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Part no. A2129006724-1
Fuse Box Mercedes W204 S204 W212 SAM Control Unit Module Relay A2129006724
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Part no. A0131546802
Alternator Generator Mercedes W204 W212 OM651 14V 180A Engine Electrical Unit
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Part no. A6395460121
Battery Cable Mercedes Vito W639 Negative Lead Wiring Harness A6395460121
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Part no. A1695450540
Fuse Box Mercedes W169 W245 Electrical Relay Control Unit A1695450540
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Part no. A2139062201
Mercedes W213 Bonnet Hood Crash Actuator Unit Left Right N/O/S A2139062201
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Part no. A1698202675
Mercedes W169 W245 Aerial Roof Antenna Radio Rod A1698202675
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Part no. A6395450301
Mercedes W639 Fuse Box Relay Control Unit Electric Module SAM A6395450301
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Part no. A6395400431
Mercedes Vito W639 Earth Cable Battery Terminal Wiring A6395400431
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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. A1699010100
Mercedes W169 W245 Sam Control Module Fuse Box Unit A1699010100
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Part no. A2661541202
Mercedes-Benz A B Class W169 W245 Alternator Generator Petrol 90A A2661541202
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Part no. A1719010100
Mercedes SLK R171 Heated Heating Seat Control Unit Module A1718201626
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Part no. A2711540802
Mercedes W203 W211 C209 M271 Petrol Alternator A2711540802
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Part no. 8200308271
Fuse Pink Mercedes W415 Citroen Renault Kangoo Trafic Relay 4-Pin 8200308271
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Part no. A2079010600
Rain Sensor Mercedes W204 W212 Light Solar Condensation Control Unit A2079010600
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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. A2045458132
Steering Lock Module Mercedes W204 W207 W212 Control Unit A2045458132
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Part no. A2118701310
Mercedes W221 Hood Bonnet Light Solar Sensor Module Unit A2118701310
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Part no. A2129005212
Radio Head Unit Mercedes W212 COMAND Navi CD DVD Player Navigation A2129005212
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Part no. A0061514501-1
Starter Motor Mercedes W204 W212 Sprinter W906 OM651 Diesel Engine A0061514501
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Part no. A0025424419
Mercedes Vito W639 Coolant Radiator Fan Relay Control Module A0025424419
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Part no. A9065403527
Positive Cable Mercedes W906 OM651 Battery Starter Alternator Plus A9065403527
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Part no. A6399005400
Mercedes Vito W639 Fuse Box Relay Control Unit Electric Module SAM A6399005400
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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. A1699000500
Mercedes W169 W245 Door Control Module Front Left N/S A1699000500
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Part no. A2038200389
Mercedes CL203 Radio Aerial Antenna Amplifier Wiring Cables A2038200389
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Part no. A2095452432
Mercedes W203 Parktronic Parking Sensor Warning Display Screen A2095452432
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Part no. A0009063000
Alternator Generator Mercedes W204 W212 M271 Engine Valeo 150A 14V A0009063000
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Part no. A2229063202
Fuse Box Mercedes W205 W222 Electrical Relay Box Module Unit A2229063202
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Part no. A2038700026
Mercedes W203 ECU Control Unit Crash Impact Sensor Module Airbag A2038700026
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Part no. A2465400340-1
Mercedes W176 Fuse Relay Box Unit A2465400340 A2469067200
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Part no. A2048204697
Mercedes W204 Dashboard Dash Navigation Central Display Screen Monitor
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Part no. A0025426618
Mercedes W211 W220 ESP Yaw Rotation Rate Sensor A0025426618
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Part no. A9079001703
Display Screen Mercedes W907 W910 Head Unit Touch Monitor 7" A9079001703
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Part no. A1698204085
Airbag Control Unit Mercedes W169 W245 System Module ECU A1698204085
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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. A1645430062
Mercedes W221 Rear View Reversing Camera Control Unit Module A1645430062
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Part no. A2469008819
Radio Head Unit Mercedes W176 W246 Audio 20 Media Player Navigation A2469008819
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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. A0025422619-1
Relay Mercedes W203 W204 W212 W639 W906 4-Pin Grey Hella 12V A0025422619
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Part no. A2049014504
Rain Sensor Mercedes W204 W212 Windscreen Control Unit A2049014504
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Part no. A2118702726
Mercedes C E Class W203 W211 Bluetooth Control Unit Module ECU A2118702726
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Part no. A2711541402
Mercedes W203 W204 M271 Engine Alternator Generator Valeo 120A 14V A2711541402
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Part no. A2038703389
Mercedes W203 W209 W639 CD 6 Disc Changer With Magazine A2038703389
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Part no. A1669008506
Seat Module Mercedes W176 W246 Control Unit Front Left Right N/O/S A1669008506
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Part no. A0009067900
Alternator Mercedes W204 W212 Diesel Engine OM651 Valeo 180A A0009067900
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Part no. A2048708826
Mercedes W204 W212 Front Windscreen Rain Light Sensor Control Unit A2048708826
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Part no. A1695401006
Mercedes W169 W245 Rain Light Sensor Control Unit Wiring A1695401006
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Part no. A0038212851
Mercedes SLK R171 Crash Sensor Air Bag Impact Module Control Unit A0038212851
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Part no. A2048707658
Mercedes W204 Radio Control Function Button Knob Controller Unit A2048707658
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Part no. A0028202426
Mercedes W211 Xenon Headlight Level Control Module A0028202426
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Part no. A2035402206
Mercedes W203 Diesel Engine Starter Alternator Electrical Cable A2035402206
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Part no. A2139002022
Door Module Mercedes W213 C238 Front Left N/S Control Unit ECU A2139002022
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Part no. A2129001327
Door Module Mercedes W204 W212 Rear Right O/S Control Unit Module A2129001327
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Part no. A2119820402
Mercedes CLS W219 Battery Fuse Box Control Unit Module A2119820402
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Part no. A2039000000-1
Mercedes CL203 Head Unit CD Player Radio Audio Controller Unit A2039000000
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Part no. A2059007845
SAM Module Mercedes W205 GLC X253 Front Body Comfort Control Unit A2059007845
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Part no. A2218700092
Mercedes W203 W221 Rain Light Sensor Control Module A2218700092
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Part no. A2609060100
Mercedes C118 W177 W247 M260 Petrol Engine Starter Motor 12V A2609060100
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Part no. A1695420518-KB
Mercedes-Benz W245 Front Bumper Parking Distance Sensor Parktronic Kosmos Black
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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. A9064402341
Positive Cable Mercedes W906 OM651 Battery Starter Alternator Plus A9064402341
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Part no. A0009821212
Energy Distributor Mercedes W205 W212 W213 W906 Control Unit Module A0009821212
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Part no. A2075401550-1
Mercedes W204 Battery Fuse Box Positive Distribution Terminal A2075401550
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Part no. A4479009005
Mercedes Vito W447 Head Unit Radio Navigation GPS Nav Display A4479009005
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Part no. A0141542702
Alternator Mercedes Vito W639 Sprinter W906 Generator 14V 120A Bosch A0141542702
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Part no. A0009003704
Mercedes W204 W212 Tyre Pressure Check Monitor Control Unit Module A0009003704
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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. A6395450232
Mercedes Vito W639 PDC Parking Distance Control Unit Module ECU A6395450232
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Part no. A2129008707
Mercedes W212 Display Screen Multifunction Dashboard Control Unit A2129008707
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Part no. A2035454901-1
Mercedes CL203 Fuse Box Control Unit Module SAM A2035454901
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Part no. A1645453316
Mercedes ML W164 Parktronic Parking Control Unit Module A1645453316
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Part no. A6461541102-1
Alternator Generator Mercedes Vito W639 Sprinter W906 14V 180A Valeo A6461541102
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Part no. A9068205626
Door Module Mercedes W906 Front Door Right O/S Control Module A9068205626
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Part no. A9064408234
Mercedes W906 Positive Battery Cable Wiring Loom Harness A9064408234
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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. A2059009427
Mercedes W205 Front Air Module SRS Control Unit ECU A2059009427
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Part no. A0009827008
Mercedes W204 W212 W222 Auxiliary Additional Generator Battery A0009827008
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Part no. A1718200626
Mercedes R171 SLK200 Module Front Door Right O/S Control Module Unit A1718200626
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Part no. A4479060117
Mercedes Vito W447 Front Fuse Box Relay Control Unit Module A4479060117
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Part no. A2035400050
Fuse Box Mercedes SLK R171 W203 W209 Front Relay Control Unit A2035400050
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Part no. A2469002603
Mercedes W176 W246 W166 Windscreen Windshield Rain Sensor Unit A2469002603
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Part no. A1718205126
Mercedes SLK R171 Door Module Front Left N/S Control Unit ECU A1718205126
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Part no. A0051511301
Mercedes W203 W211 Diesel Engine Starter Motor A0051511301
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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 .