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. A2095451401
Fuse Box Mercedes CLK W203 W209 Front SAM Module Control Unit A2095451401
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Mercedes W211 Radio Head Unit CD Audio Player Control Unit A2118702889
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Tuner Box Mercedes W213 W205 W222 Digital Audio Control Unit DAB ECE A2229008911
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Mercedes W639 113 CDI 651.940 136HP Engine Module ECU Kit A6519009302 Key Lock
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Mercedes W166 Switch Rotary Selector Controller Navigation Radio A1669003501
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Mercedes W176 W242 W246 Alternator Generator Bosch M270 Petrol A0009061903
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Mercedes CLK W209 Convertible Roof Top Control Unit Module ECU A2098204526
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Mercedes W204 Safety Crash Impact Control Module Unit A2048208285
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Mercedes Vito W447 W639 Battery Terminal Protection Cap Cover A6395460035
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Alternator Generator Mercedes W415 OM607 Diesel Engine 150A 14V 231004554R
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Mercedes Vito W447 Door Module Front Right O/S Control Unit ECU A4479008006
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Mercedes-Benz Sprinter W906 Fuse Box Unit Holder Bracket Frame A9065451640
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Mercedes Sprinter W906 Door Module Front Right O/S Control Module A9069006100
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Mercedes W213 SAM Body ECU Control Module Unit A2139009722
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Mercedes W205 C200 274.920 184HP Engine Control Unit ECU A2749000800
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Mercedes SLK R171 Door Module Front Left N/S Control Unit ECU A1718205126
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Mercedes W203 C180 Kompressor M271.946 Engine Control Unit ECU A2719000600
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Mercedes W176 W246 Battery Cover Accumulator Trim Panel Lid A2465410100
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Mercedes-Benz C CLC Class CL203 S203 W203 Fuse Box Module SAM Unit A2035454701
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Mercedes-Benz M ML W163 Front Left Right Door Wiring Loom Harness A1635400534
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Mercedes GLE C292 Coupe Air Control Module Unit Bosch SRS A1669000220
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Mercedes W221 Head Unit DVD High Line Radio Player Navigation A2218708093
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Mercedes W204 C200 Fuse Box Front SAM Control Module Relay Box A2129008207
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Mercedes W204 Fuse Box Relay Control Unit Electric Module SAM A2045453901
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Mercedes SLK R171 Door Module Front Right Control Unit ECU A1718205226
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Mercedes W140 Electric Seat Adjustment Control Unit Module ECU A1408205126
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Mercedes W246 Air Module Control Unit ECU Module A2469000709
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Mercedes Vito W639 Cover Fuse Box Battery Trim Panel Lid A6395450003
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Alternator Mercedes Sprinter W906 Diesel OM646 Engine Alternator A6461540002
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Mercedes R172 Door Module Mercedes Front Right O/S Control Unit A2129009229
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Mercedes W211 Front Fuse Box SAM SRB Module Relay Control Unit A2115455232
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Mercedes W166 Prefuse Box F32/4 Power Distribution Box A1665402950
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Parking Sensor Display Mercedes W176 W204 W246 Dashboard Panel PDC A1725420023
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Mercedes W205 SAM Module Rear Body Comfort Control Unit ECU A2059008304
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Battery Cable Mercedes W176 W246 Negative Lead Wiring Harness A2465406432
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Mercedes W251 R 350 CDI 642.950 224HP Engine Unit ECU Kit A6421508100 Key Lock
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Mercedes W907 Positive Battery Terminal Cover Cap Trim Red A9069820109
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Mercedes-Benz M ML W163 Rear Bumper Parktronic Wiring Loom Harness A1635402209
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Part no. A1715451301-1
Mercedes SLK R171 Roadster Fuse Box Control Unit SAM Module Relay A1715451301
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Mercedes Sprinter W906 Radio CD Player Audio Stereo Head Unit A9069006102
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Mercedes Sprinter W906 Radio CD Player Audio Stereo Head Unit A9069000103
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Battery Cover Mercedes C117 W176 W246 Frame Bracket Mount Holder A2465410105
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Mercedes W204 USB Port Cable Multimedia Interface Cable MI2-Ipod A0028272104
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Mercedes W203 Diesel Engine Starter Alternator Electrical Cable A2035402206
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Mercedes W176 W246 Radio Head Unit COMAND Navi Player Control Unit A2469000012
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Mercedes W202 Central Locking Vacuum Pump Control Unit A2028001448
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Door Module Mercedes C219 Front Door Right O/S Control Unit A2198202026
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Mercedes ML W164 W211 W221 Engine Starter Motor A0061515601 0001109262
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Part no. A2661531491
Mercedes W169 A150 M266.920 95HP Engine Control Unit ECU A2661531491 Automatic
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Mercedes W906 OM651.957 Diesel Engine ECU Kit Unit A6519002600 Key Lock Manual
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Mercedes W639 Automatic Gearbox EGS Control Unit Transmission Module A0005458916
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Mercedes CL203 C209 Bi-Xenon Headlight Ballast Control Unit Module A2038209385
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Mercedes X218 CLS 350CDI OM642.853 Engine Control Unit ECU Kit A6421508900 Key
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Mercedes W205 W213 C253 Battery Cable Negative Lead Wiring Harness A0009058912
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Mercedes W176 Steering Wheel Wiring Loom Harness 307873750AA
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Fuse Box Mercedes W204 Rear SAM Relay Fuse Box Control Module A2049000902
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Mercedes W176 W212 W246 Voltage Converter Power Distributor Inverter
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Mercedes-Benz E W210 Seat Memory Control Unit Module Front Left A2108206526
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Mercedes W221 S500 M273.961 388HP Engine Control Unit ECU Kit A2731532979 Key
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Mercedes ML W164 Radio Player Audio Stereo CD Player Head Unit A1648202679
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Fuse Box Mercedes W212 Battery Terminal Control Unit Module A2125400450
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Mercedes W164 C207 Automatic Gearbox ECU Control Unit EGS Module A0002703352
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Mercedes W166 W204 Display Screen Information Navigation Dashboard A1729008500
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Radio Head Unit Mercedes W176 Media Player Navigation Unit A2469002318
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Part no. A6519003701
Mercedes W212 OM651.924 E220CDI 170HP Engine Control Unit Module ECU A6519003701
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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. A0009827008-1
Mercedes W204 W212 W222 Auxiliary Additional Generator Battery A0009827008
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Part no. A4475401755
Earth Ground Cable Mercedes Vito W447 Positive Battery Lead Wiring A4475401755
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Part no. A9068201589
Mercedes Sprinter W906 Radio Stereo Audio Head Unit A9068201589
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Part no. A1685400230
Battery Starter Wiring Mercedes W168 Harness Cable Positive A1685400230
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Part no. A1699010100-2
Fuse Box Mercedes W169 W245 SAM Body Control Module Unit ECU A1699010100
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Part no. A2115456532
SAM Module Mercedes W211 C219 Front Body Comfort Control Unit ECU A2115456532
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Mercedes W169 W245 Door Cable Harness Wiring Loom Front Left N/S A1695407705
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Mercedes ML W164 Parktronic Parking Control Unit Module A1645453316
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Mercedes ML W163 Seat Module Control Unit Front Left Right N/O/S A1635452132
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Mercedes W176 W205 C207 W212 Front Radar Distance Sensor Unit Module A0009050410
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Communication Module Mercedes W177 W205 W213 X253 Hermes LTE Unit A2389008601
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Mercedes W164 Battery Starter Alternator Wiring Harness Cable OM642 A1645401730
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Mercedes W202 W210 Automatic Gearbox EGS Control Unit Module ECU A0275450132
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Mercedes Citan W415 109 CDI Fuse Box Module Unit 284B63788R
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Mercedes-Benz E W210 Seat Memory Control Unit Module Front Right A2108206626
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Mercedes ML W164 Battery Positive Cable Wiring A1645402830
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Mercedes W204 COMAND Navigation CD Player Radio Sat Nav Head Unit A2049003609
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Engine Wiring Mercedes Vito W447 OM651 Engine Harness Cable A4474404705
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Mercedes W213 C238 C253 C257 Air Module Control ECU Sensor A2139004625
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Mercedes W164 ML320 CDI 4-Matic OM642.920 Engine ECU Kit A6421506100 Key Lock
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Mercedes R172 SLK500 M274 Engine Control Unit Module ECU A2749000900
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Mercedes SLK R171 Rear SAM Control Unit Module Relay Fuse Box A1715450701
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Mercedes W211 Radio Head Unit CD Audio Player Control Unit A2118705694
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Mercedes W205 Head Unit Radio CD Player Audio Sat Nav Multimedia A2059004433
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Mercedes W221 Headlining Alarm Sensor Module Cover Trim Black A2219050018
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Part no. A4479009609
Mercedes Vito W447 Fuse Box Relay Control Unit Electric Module SAM A4479009609
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Mercedes W169 W639 COMAND Navigation Head Unit Radio Sat Nav Screen A1699007900
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Part no. A2721536979-1
Mercedes W221 S350 M272.965 272HP Engine ECU Kit A2721536979 Ignition + Key
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Part no. A0131540002
Alternator Mercedes W203 Diesel OM648 OM646 Engine ALternator 200A A0131540002
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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. A6511503233
Engine Wiring Mercedes W204 OM651 Diesel Harness Loom DDE A6511503233
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Part no. A1669005012
Mercedes W166 Front Door Module Left N/S Control Unit ECU A1669005012
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Mercedes W204 PDC Sensor Wiring Loom Harness Front Bumper A2044400035
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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 .