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. A1665405202
Mercedes ML W166 GLE C292 Engine Compartment Fuse Box Right A1665405202
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Door Module Mercedes C219 Front Left Door N/S Control Unit Module A2198200626
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Mercedes SLK R171 Petrol M271 Fuse Box SAM Relay Control Module A2129007324
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Mercedes X253 GLC 300e M274.920 4-Matic Engine ECU Unit Module A2749002900
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Mercedes W166 W221 Auxiliary Additional Generator Battery A0049820008
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Mercedes S204 Fuse Box Terminal Connection Unit A2045450369
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Starter Mercedes W204 C238 W213 W447 Diesel OM654 Starter Motor A6549061500
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Mercedes W176 W231 W246 Electric Parking Brake Control Unit Module A2469003014
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Mercedes W221 Hood Bonnet Light Solar Sensor Module Unit A2118701310
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Mercedes ML W164 Control Unit Module Fuse Box SAM A1645404601
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Mercedes SLK R172 C207 Front Fuse Box Relay Control Unit SAM Module A2129006429
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Mercedes A160 W169 M266.920 Engine Control Unit ECU A0024463140 Automatic
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Mercedes W213 S213 Multimedia USB SD Card Reader Port Socket Module A2058200526
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Mercedes-Benz CLC CL203 Rear Left Right Door Loudspeaker Speaker A2038204002
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Part no. A1665402950
Mercedes W166 Prefuse Box F32/4 Power Distribution Box A1665402950
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Part no. A0009006616
Rear Module Mercedes C238 PDC Parking Assistant Parktronic Control A0009006616
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Part no. A1698204789
Mercedes-Benz W169 W245 CD Player Radio Audio Head Unit A1698204789
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Part no. A4475404326
Mercedes Vito W447 Fuse Relay Box Control Module A4475404326
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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. A2079012700
Mercedes A207 Convertible Roof Reinforcement Roll Bag Airbag Module A2079012700
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Part no. A0275450132
Mercedes W202 W210 Automatic Gearbox EGS Control Unit Module ECU A0275450132
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Part no. A2198202326
Mercedes CLS W219 Door Module Front Left N/S Control Unit Module A2198202326
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Part no. A0009062302
Starter Motor Mercedes W639 W906 Diesel Engine A0009062302
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Part no. A6519000601
Mercedes-Benz W906 313 CDI OM651 Diesel Engine Control Unit CRD ECU A6519000601
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Part no. A0325452332
Mercedes CLK W209 Automatic Gearbox EGS Control Unit Module ECU A0325452332
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Part no. A1669056001-1
Battery Cable Mercedes W176 W246 Negative Lead Wiring Harness A1669056001
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Part no. A1685401130
Mercedes-Benz A W168 CDI Battery Terminal Positive Cable Wiring A1685401130
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Part no. A2048200089
Mercedes-Benz C E Class W204 W207 Aerial Antenna Amplifier Unit A2048200089
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Part no. A4479009609
Mercedes Vito W447 Fuse Box Relay Control Unit Electric Module SAM A4479009609
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Part no. A0121541302
Alternator Generator Mercedes W211 W220 R230 M112 Bosch 150A A0121541302
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Part no. A2038201786
Mercedes-Benz C-Class W203 CD Player Audio Stereo Radio Head Unit A2038201786
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Part no. A2479002516
Mercedes C253 Windscreen Camera Control Unit Module A2479002516
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Part no. A2055455440
Mercedes C205 Keyless Go Module Unit Bracket Mount Holder Support A2055455440
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Part no. A2218702986
Mercedes W221 Seat Control Module SSG Unit Front Left Seat N/S A2218702986
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Part no. A0002704652
Mercedes W907 DSM ISM Gearbox Control Unit Module Cloning Coding A0002704652
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Part no. A2135402045
Mercedes W213 Center Console Cupholder Lamp Wiring Harness A2135402045
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Part no. A2059009527
Mercedes W205 Air Module ICM SRS Control Unit ECU A2059009527
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Part no. A0009008129-1
PDC Module Mercedes W177 Parktronic Parking Assist Control Module A0009008129
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Part no. A2385406926
Mercedes W213 OM654 Battery Cable Starter Alternator Wiring Harness A2385406926
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Part no. A6421540502
Alternator Generator Mercedes W164 OM642 180A Electrical Unit Diesel A6421540502
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Part no. A0009824823
Mercedes Sprinter W907 Fuse Box Battery Relay Gruner A0009824823
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Mercedes S204 Rear Trunk SAM Central Electric Base Control Module A2049065602
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Mercedes CLS C218 Front Headlight Xenon Ballast Control Module Unit A2189009003
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Mercedes Vito W639 Front Left Door N/S Lock Bowden Pull Cable A6397600704
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Part no. A6399002900
Mercedes Vito W639 Door Module Front Left N/S Control Unit ECU A6399002900
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Part no. A6519007401-8
Mercedes C204 C250CDI OM651.911 204HP BlueEFFICIENCY Engine ECU Unit A6519007401
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Part no. A6399000800
Mercedes Vito W639 Fuse Box Relay Control Unit Front SAM Module A6399000800
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Part no. A2385407716
Mercedes C238 Parking Sensor Wiring Rear Bumper PDC Loom Cable A2385407716
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Part no. A2129004603
Mercedes-Benz W221 Distronic Intelligent Cruise Control Radar Unit A2129004603
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Part no. A0009004436
Mercedes C118 C205 C253 Automatic Gearbox Control Unit Module ECU A0009008324
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Part no. A2059002141
Mercedes W205 Air Module Control Unit SRS ECU A2059002141
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Part no. A1669063801
Relay Box Mercedes ML W166 Engine Compartment Relay Module A1669063801
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Part no. A0005408250
Fuse Box Mercedes W205 W213 C238 C253 Control Unit Module A0005408250
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Part no. A2118702885
Mercedes W211 Door Module Front Right O/S Control Unit ECU A2118702885
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Part no. A1649004600
Mercedes ML W164 W251 SAM Module Control Unit ECU A1649004600
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Part no. A2118210097
Mercedes E-Class W211 Front Door Wiring Loom Harness Rubber Grommet A2118210097
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Part no. A9069003502
Mercedes W906 Fuse Box Relay Control Unit Electric Module SAM A9069003502
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Part no. A2721501433
Wiring Mercedes W203 W209 W211 M272 Engine Wiring Module Harness A2721501433
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Part no. A1779002610
Mercedes W177 Ambient Lighting Control Module Unit ECU A1779002610
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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. A6511501488
Mercedes Vito W639 OM651.940 Diesel Engine Wiring Cable Loom Harness A6511501488
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Part no. A2059007147
Mercedes C205 Control Body Comfort Module Unit ECU A2059007147
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Part no. A6519006401
Mercedes GLC X253 220d 170HP 651.921 Engine Unit ECU A6519006401 Automatic
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Part no. A2118704026
Mercedes W211 Door Module Rear Left N/S Control Unit ECU A2118704026
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Part no. A2219050018-1
Mercedes W221 Headlining Alarm Sensor Module Cover Trim Black A2219050018
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Part no. A0045428718
Mercedes-Benz C E W203 W211 Parking Sensor Wiring Loom Cable Harness Front PDC
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Part no. A6399005400-2
Mercedes Vito W639 Fuse Box Relay Control Unit Electric Module SAM A6399005400
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Part no. A0994644206
Mercedes X253 Steering Wheel Contact Switch Control Plate A0994644206
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Part no. A1718204126
Mercedes SLK R171 Front Air Module SRS Control Unit ECU A1718204126
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Part no. A2139009722
Mercedes W213 SAM Body ECU Control Module Unit A2139009722
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Part no. A2045407335
Mercedes W204 C207 W212 Earth Ground Cable Transmission To Body A2045407335
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Part no. A2539003001
Mercedes C253 Electronic Control Unit Module A2539003001
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Part no. A6461504233
Mercedes Sprinter W906 OM646 Diesel Engine Wiring Harness Loom Cable A6461504233
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Part no. A2118702489
Audio Amplifier Mercedes W211 Audio Gateway Control Unit Module A2118702489
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Part no. A2139008409
Seat Module Mercedes W213 C238 Memory Control Unit Left Right N/O/S A2139008409
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Part no. A6735460011
Mercedes Vito Viano W639 Battery Cable Positive Wiring Harness A6735460011
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Part no. A0009002720
Mercedes Sprinter W907 Parking Control Unit Module Sensor Parktronic A0009002720
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Part no. A0045420418
Mercedes-Benz C CLK Class W203 C209 ESP Yaw Rotation Rate Sensor A0045420418
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Part no. A4475407880
Mercedes Vito W447 Front Passenger Side Fuse Box Control Unit Module A4475407880
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Part no. A6511502900
Engine Wiring Mercedes W906 Diesel OM651 Cable Loom Harness A6511502900
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Part no. A2215400401
Mercedes W221 Power Supply Battery Control Module Unit A2215400401
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Part no. A1695455332
Mercedes W169 PDC Parking Sensor Distance Control Module Unit ECU A1695455332
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Part no. A9068201589
Mercedes Sprinter W906 Radio Stereo Audio Head Unit A9068201589
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Part no. A2044400538
Mercedes C204 Wiring Cable Harness Front Driver Door Wiring Loom A2044400538
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Part no. A2118706189
Mercedes W164 W169 W211 W245 Disc CD Changer A2118706189
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Part no. A0009068106
Alternator Generator Mercedes W177 W247 M260 Petrol Engine 150A A0009068106
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Part no. A2319003606
Mercedes R231 Seat Control Unit Module Driver A2319003606
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Part no. A2208703589
Navigation Player Mercedes W211 W219 DVD CD Reader Control Unit A2208703589
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Part no. A1649004400
Sam Module Mercedes ML W164 Rear Relay Box Control SAM Unit A1649004400
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Part no. A1775404107-1
Fuse Box Mercedes C118 W177 W247 Battery Relay Terminal A1775404107
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Part no. A6229000400
Mercedes W447 Fan Control Relay Control Module Unit A6229000400
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Part no. A2535406430
Mercedes X253 Front Bumper PDC Wiring Parking Sensor Loom Harness A2535406430
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Part no. A0025426918
Mercedes W211 W220 Crash Sensor Left Right N/O/S A0025426918
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Part no. A0038206326
Mercedes W221 Door Module Front Door Left N/S Control Module A0038206326
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Part no. A6461532591
Mercedes W639 Vito 111 CDI OM646 Engine Unit Module ECU A6461532591 Manual
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Part no. A1648205585
Mercedes W164 Air Module Control Unit SRS Sensor ECU Bosch A1648205585
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Part no. A9079000305
Mercedes Sprinter W907 W910 Body Control Module BCM V2 ECU A9079000305
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Part no. A0141541502
Alternator Generator Mercedes W204 W212 M271 Engine Lucas 150A 14V LRA03506
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Part no. A1718200726
Mercedes R171 SLK200 Module Front Door Left Control Module Unit A1718200726
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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 .