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. A1699007400
Parking Sensor Mercedes W169 W245 PDC Distance Control Unit Module A1699007400
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Part no. A1718207126
Mercedes SLK R171 Door Module Front Left N/S Control Unit ECU A1718207126
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Seat Module Mercedes W213 C238 Memory Control Unit Left Right N/O/S A2139008409
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Mercedes W204 C180 Kompressor 271.952 156HP Engine Control Unit ECU A2711504879
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Part no. A0009063705
Alternator Mercedes W212 S212 Diesel OM651 Alternator 220A Valeo A0009063705
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Mercedes GLC X253 Relay Battery Control Cut Off Out Relay A0009825323
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Part no. A2118220114
Mercedes E CLS Class W211 W219 Bracket Anti Tow Away Sensor Bracket A2118220114
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Fuse Box Cover Mercedes W177 W247 Engine Compartment Housing Holder A2475407600
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Part no. A2055402224
Mercedes S205 X253 Center Console Wiring Loom Electrical Harness A2055402224
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Part no. A2129000006
Fuse Box Mercedes W212 Front Relay Control Unit Electric Module SAM A2129000006
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Part no. A6461503272
Mercedes W211 E220 CDI 646.821 170HP Engine Unit ECU Kit A6461503272 Key Lock
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Mercedes S212 Estate Roof Antenna Cover Shark Cosmos Black Metallic - 303
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Part no. A2048708926
Mercedes S204 Bootlid Control Unit Trunk Lid Module A2048708926
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Part no. A2139063605
SD Card Mercedes W205 C238 Garmin Map Pilot Navigation Europe A2139063605
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Part no. A2709002900-1
Mercedes X156 GLA200 M270.910 156HP Engine Control Unit ECU Kit A2709002900 Key
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Part no. A0009067703
Mercedes W213 M274 Petrol Three Phase Engine Alternator Generator A0009067703
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Part no. A2469008214
Radio CD Player Mercedes W176 W246 Audio Navigation Stereo Head Unit A2469008214
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Part no. A2535402400
Mercedes X253 Front Bumper Parking Sensor Wiring Loom Cable Harness A2535402400
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Part no. A2129003708
Mercedes W212 COMAND Radio Head Unit Navi CD DVD Player Navigation A2129003708
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Part no. A0255453232
Mercedes A E Class W168 W210 Module Control Unit Electric Fan ESG A0255453232
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Part no. A0009063701
Mercedes W205 Alternator 14V/200A Valeo Diesel Engine M626 A0009063701
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Part no. A2124404250
Mercedes W212 Front Air Vent Centre Cable Wiring Dashboard Loom A2124404250
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Part no. A2195450732
Mercedes CLS W219 Parking Sensor PDC Distance Control Unit Module A2195450732
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Part no. A1669063801
Relay Box Mercedes ML W166 Engine Compartment Relay Module A1669063801
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Part no. A4479001707
Mercedes Vito W447 Comfort SAM Control Unit Module Fuse Box A4479001707
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Part no. A0051511301-1
@Starter Motor Mercedes W203 W210 W211 Diesel Engine Actuator MAWS38371
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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. A0009007009
Mercedes Vito W447 Diesel Adblue Module Control Unit ECU A0009007009
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Part no. A9079004807
Air Module Mercedes W907 W910 Control Unit ECU A2139008828
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Part no. A9064408234
Mercedes W906 Positive Battery Cable Wiring Loom Harness A9064408234
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Part no. A0015429018
Yaw Sensor Mercedes W210 W220 ESP Rotation Rate Control Unit Module A0015429018
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Part no. A2909064100
Exhaust Flap Actuator Mercedes W205 W213 C253 Control Unit Right O/S A2909064100
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Part no. A0009063322-1
Alternator Generator Mercedes W176 W246 OM651 Diesel Engine 175A A0009063322
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Part no. A2118703794
Mercedes W169 W211 W245 Sound Audio Amplifier Unit Harman Becker A2118703794
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Part no. A1679004811
Door Module Mercedes W205 Rear Right O/S Door Control Module A1679004811
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Part no. A0009009209
Mercedes W205 C253 Diesel Adblue Module Control Unit ECU A0009009209
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Part no. A0005458416
Mercedes W639 Automatic Gearbox Control Unit Module ECU A0005458416
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Part no. A1699002000-1
Mercedes W169 W245 CD Player Radio Audio Head Unit Player A1699002000
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Part no. A2661531491-5
Mercedes W169 A180 M266.940 116HP Engine ECU Kit A2661531491 Key Lock Automatic
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Part no. A2711508833
Engine Wiring Harness Mercedes W204 M271.820 Petrol Loom Cable A2711508833
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Part no. A1635422218
Mercedes ML W163 SRS Control Module Sensor Unit Temic A1635422218
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Part no. A2015403245
Relay Mercedes E200 S124 Petrol M111 Overload Protection Relay A2015403245
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Part no. A0195455632
Mercedes W202 C208 W210 Fuse Box SAM Relay Control Unit Module A0195455632
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Part no. A2479005707
Mercedes W177 Front Seat Left N/S Module Control Unit ECU A2479005707
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Part no. A6394404809
Mercedes Viano Vito W639 Wiring Harness Tailgate License Plate Lamp A6394404809
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Part no. A2049009201
Parktronic Module Mercedes W204 PDC Parking Sensors Control Unit A2049009201
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Part no. A2045403850
Mercedes W204 SAM Fuse Prefuse Box Relay Control Unit A2045403850
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Part no. A2195404505
Mercedes C219 Coupe Front Bumper Parking Sensor PDC Wiring Harness A2195404505
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Part no. A2115456101
Mercedes W211 SAM Module Fuse Box Relay Control Unit A2115456101
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Part no. A0005427700
Mercedes GLE C292 Coupe Parking PDC Sensor Display Device Unit A0005427700
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Part no. A0141541302
Alternator Mercedes W164 W221 W251 Engine Generator 220A Valeo A0009063522
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Part no. A1669005715
Mercedes Sprinter W906 Becker Map Pilot Navigation Module Sat Nav Navi Europe
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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. A6429005601
Mercedes C207 Glow Plug Relay Unit Control Module A6429005601
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Part no. A2129007324
Mercedes SLK R171 Petrol M271 Fuse Box SAM Relay Control Module A2129007324
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Part no. A2218703787
Voice Control Module Mercedes W221 Linguatronic Input System Dutch A2218703787
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Part no. A2115457701
Fuse Box Mercedes W211 CLS C219 Front SAM Control Unit Module A2115457701
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Part no. A2129003908-1
Mercedes W212 Audio 20 CD Player Audio Stereo Radio Head Unit A2129003908
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Part no. A6429002900-9
Mercedes W164 ML350 CDI OM642.820 231HP Engine Control Unit ECU A6429002900
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Part no. A6735460011
Mercedes Vito Viano W639 Battery Cable Positive Wiring Harness A6735460011
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Part no. A1679000111
Mercedes W167 W177 Radio Stereo Player Sat Nav Head Unit ECE A1679000111
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Part no. A6519003603-3
Mercedes Sprinter W910 314 CDI OM651.958 143HP Engine ECU Kit A6519003603 Manual
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Part no. A6402002770
Alternator Belt Tensioner Mercedes W169 W245 OM640 Diesel Holder Mounting Panel
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Part no. A2569001200
Mercedes C238 E53 AMG 4-Matic M256.930 435HP Engine ECU A2569001200 Automatic
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Part no. A2115458432
Mercedes W211 CLS C219 Body Control Module BCM Temic A2115458432
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Part no. A2469067901
Mercedes C117 W176 W246 Battery Positive Plus Pole Terminal Lead A2469067901
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Part no. A2139008123
Mercedes A238 SAM Control Module Unit ECU A2139008123
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Part no. A2129009425-1
Mercedes SLK R172 Fuse Box Relay Control Unit SAM Module A2129009425
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Part no. A0009001900
Mercedes W639 Automatic Gearbox EGS Control Unit Transmission Module A0009001900
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Part no. A1669008222
Mercedes GLA X156 Central Display Infotainment Sat Nav Media Screen A1669008222
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Part no. A2469000112
Radio Head Unit Mercedes C117 W176 W246 Navi CD Player Navigation A2469000112
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Part no. A9075400186
Mercedes Sprinter W907 Battery Cable Alternator Wiring Loom Harness A9075400186
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Part no. A1669005420
Mercedes W166 Radio Sat Nav CD Multimedia Control Central Head Unit A1669005420
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Part no. A6461500091-2
Mercedes W203 C220 CDI 646.963 150HP Engine ECU Kit A6461500091 + Key + Lock
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Part no. A6395400050
Mercedes Vito W639 Battery Terminal Fuse Box Control Unit Module A6395400050
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Part no. A6519005203-1
ECU Mercedes C205 C250d Diesel OM651.921 204HP Engine Control Unit Automatic
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Part no. A9068201186
Mercedes Vito W639 Sprinter W906 CD Audio Stereo Radio Head Unit A9068201186
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Part no. A6399003101
Mercedes Vito W639 Door Module Front Left N/S Control Unit ECU A6399003101
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Part no. A1719000100
Radio Head Unit Mercedes SLK R171 CD Player Control Unit Module A1719000100
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Part no. A0009068504
Alternator Mercedes Vito W447 Engine Generator 200A Valeo A0009068504
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Part no. A2465402710
Mercedes W176 W246 Emergency Call Switch Roof Wiring Cable Loom A2465402710
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Part no. A6399000300
Mercedes Vito Viano W639 Side Sliding Door Control Unit Module ECU A6399000300
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Part no. A2319007707
Mercedes W204 Fuse Box Relay Control Unit Electric Module SAM A2319007707
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Part no. A6461502634
Mercedes Vito W639 Diesel OM646.980 Engine Control Unit Module ECU A6461502634
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Part no. A0005400950
Fuse Box Mercedes Sprinter W901 W902 W903 W904 Relay Control Unit A0005400950
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Part no. A6394408637
Mercedes W639 Rear Bumper PDC Wiring Parking Sensor Loom Harness A6394408637
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Part no. A2118706689
Audio Amplifier Mercedes W211 CLS C219 AMP Becker Sound Module Unit A2118706689
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Part no. A2098205926
Mercedes CLK C209 Body Control Module Unit A2098205926
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Part no. A2115400008
ABS Sensor Mercedes W211 C219 Front Brake Wiring Harness Right O/S A2115400006
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Part no. A2195404605
Mercedes C219 Rear Bumper PDC Wiring Parking Sensor Loom Harness A2195404605
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Part no. A4479005807
Mercedes Vito W447 Fuse Box Relay Control Unit Electric Module SAM A4479005807
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Part no. A1718200386-1
Mercedes SLK R171 Stereo Radio CD Player Head Unit A1718200386
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Part no. A2469000616
COMAND Head Unit Mercedes CLA C117 W176 W246 Nav Sat Radio Player A2469000616
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Part no. A6071500433
Engine Wiring Mercedes W176 W246 Diesel OM607 Loom Harness Cable A6071500433
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Part no. A6402003370-1
Alternator Belt Tensioner Mercedes W169 W245 OM640 Diesel Holder Mounting Panel
Product currently unavailable
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Part no. A2115406905
Mercedes CLS E Class W211 C219 Headlight Level Sensor Wiring Cable A2115406905
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Part no. A6461504233
Mercedes Sprinter W906 OM646 Diesel Engine Wiring Harness Loom Cable A6461504233
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Part no. A2115420518
Mercedes W211 W219 Earth Ground Cable Battery Wiring Loom Engine A2115420518
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Part no. A0009003210
PDC Module Mercedes W176 W246 Parking Assist Distance Control Unit A0009003210
Product currently unavailable
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 .