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. A2118220114
Mercedes E CLS Class W211 W219 Bracket Anti Tow Away Sensor Bracket A2118220114
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Mercedes W204 SAM Module Fuse Box Relay Control Unit A2129005722
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Mercedes R172 BlueEFFICIENCY 271.861 184HP Engine ECU Kit A2711500391 Key + Lock
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Mercedes W213 C238 Petrol Alternator Generator A0009060205
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Mercedes SLK R171 Center Console Arm Rest Wiring Loom Harness A1715409333
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Mercedes Vito W447 Head Unit Radio DAB Navigation GPS Nav Display A4479005517
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Starter Mercedes W204 C238 W213 W447 Diesel OM654 Starter Motor A6549061500
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Sam Unit Mercedes S203 W203 Rear Module Fuse Box A2095450701
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Mercedes A209 Fuse Box SAM Control Module Relay Box A2095451701
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Mercedes C204 Wiring Cable Harness Front Driver Door Wiring Loom A2044400538
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Mercedes W177 W247 Driver's Seat Heating Control Unit Module ECU A1679000500
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Alternator Belt Tensioner Mercedes W169 W245 OM640 Diesel Holder Mounting Panel
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Yaw Sensor Mercedes W211 W219 ESP Rotation Rate Control Unit Module A0055422718
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Mercedes CLA C117 Head Unit Sat Nav Navigation Display Screen UB2305000334
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Mercedes W447 Door Module Front Left Control Unit A4479007906
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Mercedes W221 Door Module Front Right O/S Control Unit ECU A2219006404
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Mercedes-Benz E-Class W210 Estate Radio Aerial Antenna Amplifier A2108200789
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Mercedes W202 W210 Front Left Door Control Module A2108207526
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Mercedes W639 W638 W906 Fuse Box Unit Holder Bracket Frame A6385450319
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Mercedes C238 Vehicle Dynamic Transmission Control Unit Module A2059001136
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Mercedes-Benz W207 Cabrio A207 Rear Left N/S Radio Aerial Antenna Amplifier
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Mercedes CL203 Antenna Amplifier Control Module Unit Aerial Booster A2038701689
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Mercedes W140 Head Unit Radio Player Control Module Becker A0038208286
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Mercedes SLK R171 Parking Distance Aid Sensor Control Unit Module A1715451332
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Mercedes SLK R171 Stereo Radio CD Player Head Unit A1718200786
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Mercedes Sprinter W901 Central Lock Locking Control Unit Module A0165459232
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Mercedes W207 W212 SAM Module Fuse Box Relay Control Unit A2129006924
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Yaw Module Mercedes W204 Rotation Rate Acceleration Sensor A0055421918
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Mercedes GLC C253 X253 Pedestrian Protection Pressure Crash Sensor A2539052100
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Mercedes W204 Navigation CD Player Radio Sat Nav Head Unit A2049004711
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Mercedes W221 Sound Audio Amplifier Control Unit Module A2218207689
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Mercedes Sprinter W910 Wiring Loom Cable Harness A9105409455
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SRC Module Mercedes W205 Front Air Module SRS Control Unit ECU A2059009727
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Mercedes W140 Parking Control Unit Module Sensor A0205457832
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Switch Sensor Cable Mercedes W205 W212 Rear Bumper Module A2229058804
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Mercedes W205 C220d 651.921 170HP BlueTEC Engine ECU Kit A6519000603 Key SAM
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Reversing Camera Mercedes W166 Rear View Camera Trunk Lid Tailgate A1669059302
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Light Module Mercedes W209 W219 W164 Headlight Headlamp Control Unit A2198202526
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Mercedes W221 Seat Control Module Front Right O/S A2218707493
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Mercedes EQA350 H243 4matic Electric Battery Charger Control Module A0009009935
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Earth Ground Cable Mercedes Sprinter W901 Battery Wiring Loom Engine A9015400631
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Mercedes SLK R171 Fuse Box SAM Relay Control Unit Module A1715450101
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Rear View Mirror Cable Mercedes W169 W245 Wiring Loom Harness A1695400706
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Mercedes W213 SD Card Garmin Map Pilot Navi Europe 2019 A2139062607
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Mercedes W140 Seat Memory Control Unit Module Front Left N/S A1408201426
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Part no. A2661534779
Mercedes W169 A200 M266.960 136HP Engine Control Unit ECU A2661534779 Automatic
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Starter Mercedes Sprinter W906 Diesel Engine Starter Motor Valeo A0061517401
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Part no. A9069003502
Mercedes W906 Fuse Box Relay Control Unit Electric Module SAM A9069003502
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Fuse Relay Mercedes C117 W166 W176 W205 X253 Black 4 Pin 12V A0009828023
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Module Mercedes W639 Automatic Transmission Control Module Unit A0325453832
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Air Module Mercedes Vito W639 Sprinter W906 Control Unit ECU Sensor A9064461542
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Door Module Mercedes C219 Front Door Left N/S Control Module A2198201926
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Part no. A0009062003
Alternator Generator Mercedes W204 W207 Petrol Engine Bosch 150A A0009062003
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Alternator Mercedes W204 W207 OM651 14V 150A Engine Start/Stop A0009060401
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Engine Wiring Mercedes W176 W246 Diesel OM651 Loom Harness Cable A6511502790
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Mercedes CLC CL203 Trunk Lid Tailgate Left N/S Wiring Cable Harness A2035406609
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Mercedes-Benz C CLK W202 W208 Left N/S Parking System Warning Display Screen
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Mercedes CL203 CLC200 CDI 122HP M646.963 Engine ECU Kit A6461501934 Key Lock
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Mercedes W211 OM646 Battery Cable Starter Alternator Wiring Harness A2114406209
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Mercedes SLK R171 Fuse Box SAM Relay Control Unit Module A1715451001
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Mercedes W204 COMAND Navi CD Player Radio Sat Nav Head Unit A2049004714
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Mercedes W164 W251 Fuse Relay Module Rear Fuse Box Unit A1645402372
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Alternator Generator Mercedes W211 S211 OM646 Diesel Engine 200A A0131545902
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Battery Cable Mercedes Vito W639 Negative Lead Wiring Harness A6395460121
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Module Mercedes SLK R171 Automatic Transmission Control Module A0005457916
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Mercedes W176 A180 CDI OM607.951 BE 109HP Engine ECU A6079002200 Manual
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Part no. A2045450169
Mercedes W204 SAM Module Fuse Box Relay Control Unit A2045450169
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Part no. A2045458201
Mercedes W204 Rear Fuse Box Relay SAM Control Unit Module A2045458201
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Mercedes W176 W205 Exhaust Control Valve Flap Actuator Module Unit A0325456926
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TV Tuner Mercedes ML W164 W211 CLS C219 Video Control Unit Module A2118704390
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Chrysler Grand Voyager 2.8CRD Diesel 163HP Engine Unit ECU P04727770AC Automatic
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Mercedes W211 Xenon Headlight Level Control Module A0028202426
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Mercedes W176 W246 Radio COMAND Nav CD Player Control Head Unit A2469003519
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Mercedes C253 Windscreen Camera Control Unit Module A2479002516
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Alternator Generator Mercedes W169 W245 Engine 115A 14V A2661540902
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Mercedes A E Class W168 W210 Module Control Unit Electric Fan ESG A0255453232
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Mercedes W211 Door Module Front Right O/S Driver Control Unit ECU A2118208285
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Mercedes SL63 R231 Roadster Fuse Box Passenger Footwell Fuse Box A2315401050
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Mercedes W211 Door Module Front Left N/S Driver Control Unit ECU A2118208185
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£Mercedes W212 E220CDI OM651 Diesel Engine Control Unit Module ECU A6519005301
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Mercedes W212 Light Sensor Sunlight Sensor Front A2518206510
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Mercedes W176 W246 A180 B180 BlueEFFICIENCY 270.910 122HP Engine ECU A2709002100
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Mercedes-Benz W203 W210 Sprinter W906 Glow Plug Relay A6461536579
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Mercedes C E Class W203 W211 Bluetooth Control Unit Module ECU A2118702726
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Air Module Mercedes ML W166 Interior Safety SRS Control Module A1669001311
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Mercedes W203 W209 W639 CD 6 Disc Changer With Magazine A2038703389
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Mercedes ML W164 Fuse Box Relay Control Unit Module A1645403272
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Mercedes Sprinter W906 Engine Wiring Loom Harness Cable CDI Diesel A6515460161
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Mercedes GLC X253 Rear Bumper Wiring Loom PDC Harness Parking Sensor A2535402605
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Mercedes W245 B200 CDI OM640.941 140HP Engine ECU Kit A6401508334 Key
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Mercedes W205 X253 Wiring Cable Harness Center Console A2054403008
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Battery Box Bracket Mercedes W205 W213 W238 Trim Holder Right O/S A2056200018
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Mercedes C253 Fuel Pump Module Control Unit ECU A0009002218
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Mercedes W639 W906 W907 OM642 Diesel Engine Alternator Generator A0009062700
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Part no. A6461503278
Mercedes Vito W639 OM646.982 109HP Engine Module ECU Unit A6461503278 Manual
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Starter Motor Mercedes W203 W209 W211 W906 Engine Diesel A0051516601
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Mercedes W203 Kompressor M271 Positive Battery Cable A2035400330
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Mercedes W207 Connection Media Interface Cable AUX Wire A0018276604
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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 .