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. A1648204189
Mercedes ML W164 Remote Control DVD Media Entertainment Display A1648204189
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Mercedes-Benz C W203 Front Bumper Parking Sensor Wiring Loom Cable Harness
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Fuse Box Mercedes W169 W245 SAM Body Control Module Unit ECU A1699010100
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Mercedes W205 Alternator 14V/200A Valeo Diesel Engine M626 A0009063701
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Fuse Box Mercedes SLK R171 Roadster SAM Relay Box Control Module A1715451701
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Distance Radar Module Mercedes GLE W166 C292 Control Unit A0009059906
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Mercedes W205 C350e Hybrid Electric Drive Battery High Voltage Wiring Harness
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Airbag Module Mercedes W207 C207 Coupe Air Bag SRS Control Unit ECU A2079014200
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Mercedes-Benz C M Class W163 W203 ESP Yaw Rotation Rate Sensor A0025428918
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Mercedes Citan W415 109 CDI OM607.951 Engine Control Unit ECU 237104376R Manual
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Alternator Generator Mercedes W204 W212 M271 Engine Valeo 150A 14V A0009063000
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Door Module Mercedes W213 C238 Front Left N/S Control Unit ECU A2139002022
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Mercedes W211 E220 CDI 646.821 170HP Engine Unit ECU Kit A6461503272 Key Lock
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Mercedes W204 Navigation CD Player Radio Stereo Sat Nav Head Unit A2049005112
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Mercedes W205 Head Unit Radio CD Player Audio Sat Nav Multimedia A2059003729
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Mercedes W163 CL203 W203 Petrol Alternator Generator Valeo 120A A0111546402
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Mercedes W204 W212 W251 Starter Motor 642872 Diesel Engine Starter A0061519801
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Mercedes Sprinter W906 Battery Alternator Starter Wiring Harness A9064401241
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Alternator Generator Mercedes W204 W212 Diesel Engine Valeo 180A A0009067900
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Mercedes W212 Display Screen Information Navigation Dashboard A2129014606
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Mercedes W906 311 CDI 109HP OM646.985 Diesel Engine Control Unit ECU A6461506372
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Radio Head Unit Mercedes SLK R171 CD Player Control Unit Module A1719000100
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Alternator Mercedes W212 S212 Diesel OM651 Alternator 220A Valeo A0009063705
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Mercedes W207 Front Bumper PDC Wiring Parking Sensor Loom Harness A2075406010
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Mercedes ML W163 Fuse Box SAM Control Unit Module A1635450016
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Mercedes W204 W207 Air Suspension Module Regulation Control Unit A2049000607
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Mercedes CLK A209 Convertible Antenna Amplifier Module A2098200789
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Mercedes ML W163 Transfer Box Control Unit Module ECU A1635457932
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Alternator Generator Mercedes W207 W212 OM642 Diesel Engine 200A A0009062722
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Mercedes CL203 CLC Head Unit CD Player Radio Audio Controller Unit A2039000100
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Adblue Module Mercedes W205 W222 C253 Exhaust Gas Control Unit ECU A0009004810
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Mercedes CL C215 W220 Sam Control Module Fuse Box Unit A0345459432
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Tuner Box Mercedes W207 W212 W218 Digital Audio Control Unit DAB ECE A2229002710
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Mercedes Vito W639 Fuse Box Relay Control Unit Electric Module SAM A6399005400
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Merceedes W211 E280 CDI OM642.920 Engine Control Unit ECU Kit A6421509177 Key
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Mercedes W203 W210 W220 DIesel Glow Plug Relay Module Unit A0285454032
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Mercedes Vito W639 Sprinter W906 CD Audio Stereo Radio Head Unit A9068201186
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Mercedes Sprinter W906 Fuse Box Relay Bracket Monunt Holder A9065460643
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Mercedes ML W166 C216 W221 Auxiliary Additional Generator Battery A0019822708
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Head Unit Mercedes CLA C118 W907 Sat Nav Radio Media Player Unit A2479006213
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Mercedes R171 Door Control Module Front Right O/S A1718206226
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Mercedes W176 W246 Parktronic Parking Control Unit Module ECU A2469005010
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Control Unit Mercedes W169 W245 SAM Module Relay Fuse Box A1695456332
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Mercedes-Benz W169 W245 CD Player Radio Audio Head Unit A1698204789
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Mercedes W202 A208 C208 W208 W210 Fuse Box Relay Control Unit A0005400072
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Mercedes W176 W246 Front Door Module Control Unit Module Right O/S A1669004302
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Alternator Generator Mercedes W415 OM607 Diesel Engine 150A 14V 231004554R
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Mercedes-Benz W221 Distronic Intelligent Cruise Control Radar Unit A2129004603
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Mercedes W169 Front Bumper Parking Distance Sensor Parktronic Kosmos Black 191
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Mercedes-Benz E W207 Cabrio A207 Exhaust BlueTec Control Unit Module Bracket
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Mercedes C207 Cable Wiring Power Steering Rack Loom Harness A2045400010
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Negative Cable Mercedes C117 W176 Battery Lead Minus Pole Wiring A1765400009
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Mercedes-Benz W169 Front Bumper Parking Distance Sensor Parktronic Polar Silver
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Mercedes-Benz B W245 Front Bumper Parking Distance Sensor Parktronic Primed
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Mercedes W204 W212 C218 Sound Audio Amplifier Harman Becker A2128700194
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Mercedes X156 GLE W166 Surround View Camera Control Unit Module A1569003303
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Mercedes W169 W245 CD Player Radio Stereo Head Unit A1698700689
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Mercedes SLK R171 Roadster Soft Top Folding Roof Control Module A1718204926
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Mercedes W164 W204 Fuel Pump Module Control Unit ECU Petrol A2215401601
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Door Module Mercedes W169 W245 Front Left N/S Control Unit A1698206926
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Alternator Generator Mercedes Vito W639 Sprinter W906 14V 180A Valeo A6461541102
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Mercedes ML W166 Radio Stereo CD Player Audio Sat Nav Head Unit A1669000213
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Mercedes ML W163 270 CDI Engine Control ECU Kit Key Automatic A6121536379
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Mercedes ML W164 Audio 20 Stereo Radio CD Head Unit Player A1648209289
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Mercedes W213 E220 CDI OM654.920 Engine Control Unit ECU A6549001400 Automatic
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Mercedes W166 W204 Display Screen Information Navigation Dashboard A1729008500
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Mercedes W177 Glow Plug Relay Preglow Module Diesel OM654 A6549009900
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Mercedes W211 Alternator Generator A0121549802
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Mercedes W213 Mechatronic Automatic Gearbox Control Unit Module A7252701905
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Mercedes Sprinter W901 W638 Fuse Box Relay Control Unit Module A0005400650
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Mercedes W203 C220 CDI 646.963 150HP Engine ECU Kit A6461500091 + Key + Lock
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Fan Wiring Mercedes W639 W906 Heater Blower Unit Motor Cable Harness A0005405624
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Mercedes CLK W209 Convertible Fuse Box Rear SAM Module Control Unit A2095450901
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Head Unit Mercedes GLE C292 Radio CD Player Navigation Media A1669003722
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Mercedes W176 W246 Battery Junction Block Battery Plus Pole A2469068601
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Relay Mercedes E200 S124 Petrol M111 Overload Protection Relay A2015403245
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Door Module Mercedes C219 Front Left Door N/S Control Unit Module A2198200626
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Mercedes C219 Coupe Front Bumper Parking Sensor PDC Wiring Harness A2195404505
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Alternator Generator Mercedes W213 C238 C253 OM656 Engine Valeo 250A A0009064508
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Mercedes W207 W212 Head Unit Sat Nav Navigation Display Screen
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Mercedes Vito W639 Fuse Box Relay Control Unit Electric Module SAM A6399005400
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Mercedes SLK R171 Front Air Module SRS Control Unit ECU A1718204126
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Mercedes W202 C208 W210 Fuse Box SAM Relay Control Unit Module A0195455632
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Relay Mercedes SLK R171 5-Pin Electrical Plug White 12V A0035422019 R1808002
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Mercedes W167 W177 Radio Stereo Player Sat Nav Head Unit ECE A1679000111
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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 .