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. A0009054807-1
Mercedes W118 W177 W206 W247 Air Quality NOX Sensor A0009054807
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Relay Mercedes W203 W204 W212 W639 W906 4-Pin Grey Hella 12V A0025422619
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Mercedes W639 OM651.940 136HP Engine Unit Module ECU Kit A6511501879 Key Lock
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Relay Mercedes W124 Indicators Wipers Hazard Lights Relay A2018210047
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Mercedes W213 Door Ambient Light Cable Harness Wiring Rear Right O/S A2135407744
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Mercedes GLE C292 Coupe Trunk Lid Module Automatic Closing A2929007101
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Positive Cable Mercedes W906 Battery Starter Alternator Plus A9065403627
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Mercedes W906 Door Module Front Left Right N/O/S Control Unit ECU A9069000501
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Cable Wiring Mercedes W177 W247 Fuel Pump Sending Unit Plug Socket A1775404910
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Mercedes C205 Fuse Box Relay Control Unit Module A0035421819
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Mercedes W221 Rear SAM Fuse Box Power Distribution Control Unit A2215403050
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Camera Module Mercedes C205 W247 GLC X253 W910 Control Unit A0009002740
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Mercedes Sprinter W906 Fuse Box SAM Control Unit Module A9069004700
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Mercedes W204 C63 AMG M156 Engine Alternator Generator BOSCH 180A A1561540102
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Mercedes Sprinter W906 Fuse Box Cover Trim Panel Lid Grey A6395450003
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Mercedes W203 W639 Audio 10 CD Player Audio Stereo Radio Head Unit A2038202686
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Mercedes C205 Midline Sound Audio Amplifier Unit A2059000044
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Mercedes W204 Navigation CD Player COMAND Radio Sat Nav Head Unit A2049005908
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Mercedes W906 Cover Footwell Fuse Box Trim OBD Grey A9066880008
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Head Unit Mercedes CL203 CLC CD Player Radio Audio Telephone Unit A2039000100
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Mercedes W639 W906 Battery Terminal Fuse Box Control Unit Module A6385454440
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Navigation Screen Mercedes W212 1 Head Unit Sat Nav Center Display A2129005000
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Mercedes W203 W204 W211 Automatic Gearbox Transmission Control Unit A0034464110
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Starter Mercedes W204 W212 Diesel OM642 Starter Motor 1005831549
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Mercedes Sprinter W907 Fuse Box Battery Relay Gruner A0009824823
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Mercedes ML W164 SAM Module Passenger Side Control Unit A1645402501
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Mercedes W204 Fuse Box Grouping Fuse Placement Map Card Diagram A2045842982
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Mercedes-Benz E W211 Radio Aerial Antenna Amplifier Module Unit A2118200089
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Mercedes W205 Display Screen Multimedia Navigation Sat Head Unit A2059000441
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Door Module Mercedes W176 W246 Front Right O/S Control Unit Module A1669004402
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Mercedes W204 W212 W222 Auxiliary Additional Generator Battery A0009827008
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Mercedes W906 OM646.985 109HP Engine Unit Module ECU Kit Key A6461506378
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Antenna Amplifier Mercedes CLS C219 Pillar C Left N/S Aerial Module A2198200089
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Part no. A1678201302
Mercedes W167 W256 USB Charger Connecting Unit A1678201302
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Gateway Control Unit Mercedes W204 W212 Gateway Module ECU VST A2129001227
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Part no. A2038204002
Mercedes-Benz CLC CL203 Rear Left Right Door Loudspeaker Speaker A2038204002
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Part no. A2128205313
Mercedes W212 Front Left Right N/O/S Seat Wiring Loom Cable Harness A2128205313
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Part no. A0025451901
Mercedes W210 Fuse Box Sam Module Control Unit A0025451901
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Mercedes Vito W639 Suspension Level Control Unit Module ECU A6394460317
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Mercedes W213 Parking Control Unit Camera View Module ECU Parktronic A0009006418
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Mercedes X253 GLC 300e M274.920 4-Matic Engine ECU Unit Module A2749002900
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Mercedes W177 Steering Column Control Module A0999008701
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Mercedes W140 Seat Heated Heating Control Unit Module ECU A1408201526
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Engine Wiring Mercedes W906 Diesel OM651 Cable Loom Harness A6511505120
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Mercedes-Benz C-Class W203 W204 W211 Diesel Engine Starter Motor A0061512501
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Part no. A4479063000
Mercedes Vito W447 Heater Blower Motor Fan Resistor A4479063000
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Part no. A9075404687
Mercedes W907 Battery Cable Alternator Wiring Loom Harness Cabling A9075404687
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Part no. A2098205026
Mercedes W209 Convertible Roof Module Folding Top Control Unit ECU A2098205026
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Part no. A2139009216
Mercedes S205 Estate W213 W222 Towing Hitch Trailer Hook Module Unit A2139009216
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Part no. A9065400113
Mercedes-Benz Sprinter W906 Rear Door Licence Plate Lighting Wiring Cable
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Part no. A0009001803
Mercedes W176 W204 C207 C218 W246 Fuel Pump Control Module A0009001803
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Part no. A2129006905-1
Mercedes W212 Comand Radio Head Unit CD DVD Player A2129006905
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Mercedes C117 W176 A180 W246 M270 Engine Wiring Harness Cable Loom A2701501633
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Part no. A6519003701-2
Mercedes W212 Engine ECU Module Wiring Loom Harness Socket OM651 A6519003701
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Mercedes W203 W211 Diesel Engine Starter Cable Wiring A2035401335
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Mercedes W205 Head Radio CD Player Navi Interface Control Unit A2059006222
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Part no. lhd-A2215401250
Mercedes W221 Prefuse Fuse Distribution Box Unit Front A2215401250
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Display Screen Mercedes W907 W910 Head Unit Touch Monitor 7" A9079001703
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Part no. A1718600105
Mercedes R171 Seat Air Module Control Unit Front Left N/S A1718600105
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Mercedes S204 Estate Fuse Box Rear SAM Module Control Unit A2049005003
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Part no. A2125400035
Earth Ground Cable Mercedes W204 W207 W212 Battery Starter Wiring A2125400035
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Starter Motor Mercedes Sprinter W906 OM651 Diesel Engine 0986021360
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Part no. A1718206926
Mercedes SLK R171 Door Module Front Left Control Module A1718206926
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Part no. A0009063522
Alternator Mercedes W212 Engine Generator 220A Valeo A0009063522
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Part no. A9015407309
Mercedes W901 OM602 Ignition Lead Electrical Cable Harness A9015407309
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Part no. A1779061002-1
Mercedes W177 Fuse Box Power Distribution Junction Relay Unit A1779061002
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Part no. A0035452405
Relay Mercedes W124 E280 Petrol Fuel Pump Cut Off Relay A0035452405
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Part no. A1695400132
Cable Wiring Mercedes W245 Fuel Pump Sending Unit Plug Socket A1695400132
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Part no. A2129014606-1
Mercedes W212 Display Screen Information Navigation Dashboard A2129014606
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Part no. A0121541302
Alternator Generator Mercedes W211 W220 R230 M112 Bosch 150A A0121541302
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Alternator Generator Mercedes W204 W212 Diesel Engine Valeo 180A A0009067900
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Part no. A0061510301
Mercedes W169 W245 Petrol Engine Starter Motor M266 A0061510301
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Mercedes C118 W177 W247 M260 Petrol Engine Starter Motor 12V A2609060100
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Battery Starter Wiring Mercedes W168 Harness Cable Positive A1685400230
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Part no. LRT00134
Mercedes Sprinter W906 Engine Starter Motor Lucas LRT00134
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Part no. A4479000001
Mercedes W447 Front Door Module Left N/S Control Unit ECU A4479000001
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Part no. A0009009903
Mercedes W212 E63 AMG Drive Unit Extended Control Module ECU A0009009903
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Part no. A9069005504
Mercedes W906 Fuse Box Relay Control Unit Electric Module SAM A9069005504
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Mercedes W221 Front Camera Wiring Harness Cables Night Vision A2215409509
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Part no. A2129009705
Mercedes W204 W212 Fuse Box Relay Control Unit Electric SAM Module A2129009705
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Mercedes W204 W212 W221 AMG Fuel Pump Module Control Unit ECU A0355400445
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Mercedes W124 E280 Comfort Control Module Unit ECU A2028200926
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Battery Relay Mercedes W176 W246 W447 Cut Off Module Control Unit A0035422819
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Mercedes W246 Airbag Belt Locking Retractor Control Unit Module A2469006018
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Battery Cable Mercedes W176 W246 Negative Lead Wiring Harness A2465406432
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Mercedes W212 Xenon Headlight Ballast Control Unit Module Hella A2129003502
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Mercedes ML W164 W251 Fuse Box Relay Module Control Unit A1645403572
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Mercedes W166 Seat Fuse Relay Junction Box Block A1665402150
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Mercedes W211 Central Gateway Module Control Unit A2115405645
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Mercedes CL C216 W221 S500 Air Pneumatic Suspension Control Module A2215407962
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Mercedes-Benz C-Class W203 Front Right Door O/S Control Unit Module A2038206426
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Mercedes W204 C207 W212 Earth Ground Cable Transmission To Body A2045407335
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Mercedes W221 Bluetooth Hands-free Mobile Phone Adapter A2218201811
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Radio CD Player Mercedes W176 W246 Audio Navigation Stereo Head Unit A2469002718
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Mercedes-Benz W202 C208 W208 Control Unit Bracket Holder Boot Trunk A2025458440
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Mercedes W169 W245 CD Player Radio Stereo Head Unit A1698700689
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Mercedes A207 Convertible Roof Reinforcement Roll Bag Airbag Module A2079012700
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Mercedes W169 PDC Parking Distance Control Unit Module Rear A1695450632
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Mercedes GLC X253 Electronic Module ECU Control Unit A2059005351
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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 .