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. A1779061002-1
Mercedes W177 Fuse Box Power Distribution Junction Relay Unit A1779061002
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Mercedes SLK R171 Door Module Front Left Control Module A1718206926
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Mercedes W906 313 CDI OM651.955 129HP Diesel Engine ECU A6519003203 Manual
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Mercedes W168 Battery Support Holder Front Mount Bracket A1686100336
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Mercedes W211 Rain Light Sensor Control Unit Wiring Loom Cable A2115409605
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Mercedes X218 CLS350 Airmatic Suspension Self Leveling Module A2189008903
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Mercedes C118 W177 W247 M260 Petrol Engine Starter Motor 12V A2609060100
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Part no. A2479000910
Mercedes W177 W247 All Wheel Drive Control Unit Module ECU SG MFA2 A2479000910
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Mercedes-Benz A-Class W176 CLA C117 Rear View Camera Control Module Unit ECU
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Mercedes W176 W246 Door Front Left N/S Control Unit Module ECU A1669004102
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Mercedes W211 Rain And Light Sensor Control Unit Module ECU A2118206026
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Mercedes W205 Display Screen Instrument Cluster Speedo Meter A2059004842
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Part no. A2049060105-2
Mercedes W204 SAM Control Unit Module Fuse Box Relay Rear A2049060105
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Part no. A2215400401
Mercedes W221 Power Supply Battery Control Module Unit A2215400401
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Mercedes W211 Door Module Front Right O/S Control Unit ECU A2118701026
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Part no. A6421540402-1
Mercedes W164 W204 W211 OM642 Diesel Alternator Generator A6421540402
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Part no. A2129003608
Air Suspension Module Mercedes W212 Regulation Level Control Unit A2129003608
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Part no. A1645430062
Mercedes W221 Rear View Reversing Camera Control Unit Module A1645430062
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Part no. A0081545202
Mercedes W124 M103 Alternator Generator BOSCH 14V 70A A0131541002
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Part no. A9069006303-1
Mercedes W906 Fuse Box SAM Module Control Unit ZGS Temic A9069006303
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Part no. A2219009202
Parktronic Module Mercedes W221 W216 Parking Sensor Control Unit A2219009202
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Module Mercedes SLK R171 Automatic Transmission Control Module A0005457916
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Part no. A1695450540
Fuse Box Mercedes W169 W245 Electrical Relay Control Unit A1695450540
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Battery Cable Mercedes W176 W246 Positive Wiring Starter Harness A2465408032
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Part no. A2079005400
Mercedes W204 W207 C218 W212 E220 Navigation 20 Control Module Unit A2079005400
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Part no. A2469006018
Mercedes W246 Airbag Belt Locking Retractor Control Unit Module A2469006018
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Part no. A2219006303
Mercedes W221 Radio Multimedia Head Unit A2219006303
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Part no. A2129006429
Mercedes SLK R172 C207 Front Fuse Box Relay Control Unit SAM Module A2129006429
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Part no. A2218706586
Mercedes W221 Front Door Control Module Unit Left N/S ECU A2218706586
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Part no. A2711502433
Engine Wiring Harness Mercedes W203 W211 M271 Loom Wiring Cable A2711502433
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Part no. A2215407545
Mercedes W221 Parking Aid Sensors Control Unit Module A2215407545
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Part no. A0055422118
Yaw Sensor Mercedes R171 W203 W209 ESP Rotation Rate Unit Module A0055422118
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Part no. A6461506479
Mercedes C209 220 CDI M646.966 150HP Engine Unit ECU A6461506479 Automatic
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Part no. A2045407335
Mercedes W204 C207 W212 Earth Ground Cable Transmission To Body A2045407335
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Part no. A2059001336
Mercedes W238 Coupe Convertible Module Control Unit ECU A2059001336
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Part no. A0009004213
Adblue Module Mercedes W447 W906 Control Unit ECU A0009004213
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Part no. A1679001014
Mercedes V177 Head Unit Media Player Audio Radio Controller A1679001014
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Part no. A2105460241
Mercedes-Benz E-Class W210 S210 Battery Cable Box Connector Right A2105460241
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Part no. A1715451301
Mercedes R171 Fuse Box Control Unit SAM Module Relay A1715451301
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Part no. A1669007616
Amplifier DAB Mercedes W176 W204 W212 Control Unit Module ECU A1669007616
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Part no. A6079002300-4
Mercedes W176 180 CDI OM607 Engine Control Unit Module ECU 237101754R Automatic
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Part no. A6541599500
Mercedes C253 OM654 Engine Wiring Cable Cover Duct Bracket Channel A6541599500
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Part no. A6429009900
Adblue Module Mercedes W164 W212 W221 Control Unit ECU A6429009900
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Part no. A2049005908-1
Mercedes W204 Navigation CD Player COMAND Radio Sat Nav Head Unit A2049005908
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Mercedes W221 Telephone Bluetooth Control Module A2218708685
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Part no. A2711502933
Engine Wiring Harness Mercedes R171 W203 C209 M271 Loom Cable A2711502933
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Part no. A2129006824
Front Fuse Box Mercedes W204 S204 Relay Control Unit SAM Module A2129006824
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Part no. A2059005122
Seat Module Mercedes W205 W253 Memory Control Unit Driver's Side A2059005122
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Part no. A2711541402
Mercedes W203 W204 M271 Engine Alternator Generator Valeo 120A 14V A2711541402
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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. A2025458440
Mercedes-Benz W202 C208 W208 Control Unit Bracket Holder Boot Trunk A2025458440
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Part no. A2049014503
Mercedes W212 Rain Light Solar Condensation Sensor Control Unit A2049014503
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Part no. A2054403008
Mercedes W205 X253 Wiring Cable Harness Center Console A2054403008
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Part no. A6394408537
Mercedes W639 Front Bumper PDC Wiring Parking Sensor Loom Harness A6394408537
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Part no. A2128270228-ING
Mercedes W212 Estate Roof Antenna Cover Shark Indium Grey Metallic A2128270228
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Part no. A0009062100
Mercedes W212 Engine Alternator Generator A0009062100
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Part no. A0999004101
Steering Lock Mercedes W176 W246 Control Unit Module VST A0999004101
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Part no. A1769001101
Mercedes W176 W246 Comfort Module Central Gateway Control Unit VST A1769001101
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Part no. A2468200526
Seat Module Mercedes W176 W246 Control Unit Front Left Right N/O/S A2468200526
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Part no. A2129006905-1
Mercedes W212 Comand Radio Head Unit CD DVD Player A2129006905
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Part no. A2701501633
Mercedes C117 W176 A180 W246 M270 Engine Wiring Harness Cable Loom A2701501633
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Part no. A4478200087
Mercedes Sprinter W906 Connector AUX USB Adapter Port Socket A4478200087
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Part no. A6519062800-1
Starter Mercedes W204 W212 W906 Diesel OM651 Starter Motor Bosch A6519062800
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Part no. A2195406207
PDC Wiring Mercedes W211 W219 Front Bumper Parking Sensor Loom Cable A2195406207
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Part no. A0009064022
Mercedes W447 OM622 Diesel Engine Alternator Generator A0009064022
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Part no. A2218704895
Mercedes W221 Door Module Rear Door Control ECU Unit Left N/S A2218704895
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Part no. A2215408845
Mercedes W221 Gateway Control Unit Module ECU A2215408845
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Part no. A2479004415
Telematics Module Mercedes W213 H243 Communication Blutooth Control A2479004415
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Part no. A1729008612
Mercedes SLK R172 Amplifier Audio Sound Control Unit Module Harman A1729008612
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Part no. A1695407205
Mercedes-Benz B W245 Parktronic Parking Sensor Wiring Cable Rear PDC A1695407205
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Part no. A1715409333
Mercedes SLK R171 Center Console Arm Rest Wiring Loom Harness A1715409333
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Part no. A0061517401-1
Mercedes Sprinter W906 Diesel Starter Motor Engine Valeo A0061517401
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Part no. A2229000618
Mercedes GLC X156 Estate Trunk Lid Tail Gate Relay Amplifier Module A2229000618
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Part no. A2129014606
Mercedes W212 Display Screen Information Navigation Dashboard A2129014606
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Part no. A2118700726
Mercedes W211 Seat Memory Control Unit Module Front Right O/S A2118700726
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Part no. A2219007102
Mercedes W221 Fuse Box SAM Relay Control Unit Signal Module Front A2219007102
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Part no. A1729008412
Mercedes SLK R172 Roadster Folding Vario Roof Control Module A1729008412
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Part no. A2135406303
Mercedes W213 PDC Parking Sensor Wiring Loom Cable Rear Bumper A2135406303
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Part no. A2218707386
Mercedes W221 Door Control Unit Module Right Rear O/S A2218707386
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Part no. A2035407608
Mercedes-Benz C W203 Front Left Right Door Wiring Loom Harness A2035407608
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Part no. A2129005212
Radio Head Unit Mercedes W212 COMAND Navi CD DVD Player Navigation A2129005212
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Part no. A2059002629
Surround View Camera Mercedes W205 W447 Camera Control Unit Module A2059002629
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Part no. A2129014606-1
Mercedes W212 Display Screen Information Navigation Dashboard A2129014606
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Part no. A2124400613
Wiring Harness Mercedes W212 Dashboard Dash Wiring Cable A2124400613
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Part no. A1775405710
Parking Sensor Wiring Mercedes W177 W247 Rear Bumper PDC Loom Cable A1775405710
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Part no. A1679002718
Mercedes W205 W213 Door Module Front Left N/S Control Unit ECU A1679002718
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Part no. A0009067900-1
Alternator Generator Mercedes W204 W212 Diesel Engine Valeo 180A A0009067900
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Part no. 0165459232
Mercedes Sprinter W901 Central Lock Locking Control Unit Module A0165459232
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Part no. A0325453832
Module Mercedes W639 Automatic Transmission Control Module Unit A0325453832
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Part no. A9069006303
Mercedes W906 Fuse Box Control Unit Module ZGS Temic A9069006303
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Part no. A6395460121
Battery Cable Mercedes Vito W639 Negative Lead Wiring Harness A6395460121
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Part no. A1645450201
Fuse Box Mercedes ML W164 W251 OM642 Diesel Relay Module Unit A1645450201
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Part no. A0061514601
Starter Motor Mercedes Sprinter W203 W204 W211 OM646 Diesel Engine A0061514601
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Part no. A6511502620
Mercedes W906 OM651.955 Diesel Engine Wiring Harness Loom Cable A6511502620
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Part no. A1649007000
Mercedes V251 SAM Body Control Module Rear Unit A1649007000
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Part no. A1645402372
Mercedes W164 W251 Fuse Relay Module Rear Fuse Box Unit A1645402372
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Part no. A2189005607
Radio Head Unit Mercedes W207 W212 COMAND Navi CD Player Navigation A2189005607
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Part no. A2469008311
Mercedes W176 PDC Parking Distance Sensor Module Control Unit ECU A2469008311
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Part no. A2139009020
Mercedes A238 Control Unit Module Amplifier Premium Sound A2139009020
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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 .