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. A1685400230
Battery Starter Wiring Mercedes W168 Harness Cable Positive A1685400230
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Mercedes Sprinter W906 Engine Starter Motor Lucas LRT00134
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Mercedes W447 Front Door Module Left N/S Control Unit ECU A4479000001
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Mercedes W212 E63 AMG Drive Unit Extended Control Module ECU A0009009903
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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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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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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 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 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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Part no. A2129005722
Mercedes W204 SAM Module Fuse Box Relay Control Unit A2129005722
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Part no. A2215450001
Mercedes W221 Fuse Box Front Relay Control Unit Base Module A2215450001
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Part no. A6429002900
Mercedes W212 E350 CDI OM642.850 Engine Control Unit Module ECU A6429002900
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Part no. A0024463140-3
Mercedes A160 W169 M266.920 Engine Control Unit ECU A0024463140 Automatic
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Part no. A0355451532
Mercedes W211 Gearbox Module Transmission Control Unit A0355451532
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Part no. A2049069801
Mercedes W204 Navigation CD Player Radio Stereo Sat Nav Head Unit A2049069801
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Part no. A2129003814
Fuse Box Mercedes W204 W212 Front Relay Control Unit Module SAM A2129003814
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Part no. A0009820123
Relay Mercedes W166 Voltage Dip Protection Start/Stop Relay Module A0009820123
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Part no. A2539003001
Mercedes C253 Electronic Control Unit Module A2539003001
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Part no. A1679002718-1
Mercedes W205 C253 W257 Door Module Front Left N/S Control Unit ECU A1679002718
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Part no. A6519062300-1
Starter Motor Mercedes W204 W212 OM651 Diesel Engine Starter NAPA A6519062300
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Part no. A2710107344-1
Mercedes A209 CLK200 K M271.955 Engine Control Unit ECU Kit A2710107344 Key
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Part no. A1715403832
Mercedes SLK R171 Front Bumper Parking Sensor PDC Wiring Harness A1715403832
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Part no. A9065451640
Mercedes-Benz Sprinter W906 Fuse Box Unit Holder Bracket Frame A9065451640
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Part no. A1718206526
Mercedes SLK R171 Air Module System Control Unit ECU A1718206526
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Part no. A2129006624
Fuse Box Mercedes W204 Front Relay Control Unit Module SAM A2129006624
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Part no. A2049017901
Rain Sensor Mercedes SLK R172 W204 Front Windscreen Control Unit A2049017901
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Part no. A0009102675
Mercedes W204 Seat Loom Cable Multicontour Pump Control Front A0009102675
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Mercedes W168 W203 W211 W218 Relay Unit 5-Pin Yellow Hella A0025421219
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Mercedes W221 C216 Keyless Go Easy Entry Control Module 433Mhz A2218702292
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Part no. A0009007907
Mercedes W205 GLC X253 Front Radar Sensor Module Control Unit A0009007907
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Part no. A2115407545
Mercedes W211 Central Gateway Control Unit Module Relay ECU A2115407545
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Mercedes Vito W639 OM651.940 136HP 113 CDI Engine ECU Kit A6511501879 Keys+Lock
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Mercedes W163 ECU Start Engine Control Unit Immobilizer Ring A1635454032
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Part no. A2465410100
Mercedes W176 W246 Battery Cover Accumulator Trim Panel Lid A2465410100
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Part no. A2059006818
Mercedes W205 SAM Module Front Body Comfort Control Unit ECU A2059006818
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Part no. A2059004842-1
Mercedes W205 Display Screen Instrument Cluster Speedo Meter A2059004842
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Part no. A0275454132-1
Mercedes W168 A160 102HP Engine Control ECU Kit A0275454132 + 2 Keys Automatic
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Part no. A2514401909
Mercedes W164 W251 Wiring Loom Cable Harness Door Front Left Right A2514401909
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Part no. A6519005203-2
Mercedes W205 C 220d BlueEFFICIENCY 651.921 170HP Engine ECU Unit A6519005203
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Part no. A2129005622
Mercedes W204 Front Fuse Box Relay Control Unit SAM Module A2129005622
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Part no. A2118275542
Mercedes W169 W211 6 Disc CD Changer Player Glove Box A2118275542
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Part no. A2129005213
Mercedes C204 Sound Audio Amplifier Unit Harman Becker A2129005213
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Part no. A2479008715
Mercedes H243 Multifunction Front Camera Control Unit Module A2479008715
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Part no. A0009063822-1
Alternator Generator Mercedes W176 W246 Diesel Engine Bosch 175A A0009063822
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Part no. A1765401201
Mercedes W176 Multimedia Box Wiring Loom Electrical Harness A1765401201
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Part no. A6079002300
Mercedes W176 W246 180 CDI 607.951 109HP Engine Unit ECU Automatic A6079002300
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Mercedes W169 W245 W639 W906 Head Unit Radio Media Player Navigation A1699002500
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Part no. A2661541202
Mercedes-Benz A B Class W169 W245 Alternator Generator Petrol 90A A2661541202
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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. A2115452240
Mercedes-Benz E CLS Class W211 W219 Control Module Bracket Holder A2115452240
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Part no. A1718200626
Mercedes R171 SLK200 Module Front Door Right O/S Control Module Unit A1718200626
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Part no. A0131541002-1
Mercedes Vito Viano W639 Alternator Generator Diesel 200A A0131541002
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Part no. A4479009005
Mercedes Vito W447 Head Unit Radio Navigation GPS Nav Display A4479009005
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Part no. A0034466040-2
Mercedes W169 A150 M266.920 95HP Engine Control Unit ECU Kit A0034466040 2 Keys
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Part no. A1775404107-1
Fuse Box Mercedes C118 W177 W247 Battery Relay Terminal A1775404107
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Part no. A2218208789
Mercedes W221 Audio Sound Speakers Amplifier Control Unit ECU A2219008103
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Part no. A1718205826
Mercedes SLK R171 Air Module Bag SRS Control Unit ECU A1718205826
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Part no. A0121544502
Mercedes W168 Alternator Generator A0121544502
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Part no. A0008605903
Mercedes W204 Steering Wheel Air Module Driver's Side Black A0008605903
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Mercedes W221 S350 BlueTEC OM642.862 Engine ECU Kit Ignition + Key A6421508900
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Mercedes S350 W221 Seat Control Module Front Left N/S A2218707393
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Part no. A6401540502
Mercedes W169 W245 A B 160 180 200 CDI OM640 Alternator Generator A6401540502
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Mercedes W202 W210 Engine Cooling Radiator Fan Control Unit Module
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Part no. A0028201326
Mercedes SLK R171 Crash Sensor Air Bag Impact Module Control Unit A0028201326
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Part no. a0025429219
Mercedes C117 W166 W176 W222 W246 Relay Black Control Unit 12V 20A A0025429219
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Part no. A2385406926
Mercedes W213 OM654 Battery Cable Starter Alternator Wiring Harness A2385406926
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Part no. A2129009705-1
Mercedes W204 W212 Fuse Box Relay Control Unit Electric SAM Module A2129009705
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Part no. A6519009702-2
Mercedes H243 EQA350 780.200 4-Matic Engine Unit ECU A6519009702 Automatic
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Mercedes-Benz W204 C220CDI Diesel Engine Control Unit Module ECU A6461502072
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Mercedes W211 Door Module Front Right O/S Control Unit ECU A2118701026
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Mercedes W906 313 CDI OM651.955 129HP Diesel Engine ECU A6519003203 Manual
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Roof Wiring Mercedes SLK R171 Covertible Roof Opening Wring Harness A1715404209
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Mercedes W203 Steering Column Lock Control Unit Module A2034621130
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Part no. A2045403510
Mercedes W204 Battery Wiring Cable Harness Loom Rear A2045403510
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Part no. A2038201285
Mercedes-Benz C-Class W203 Front Right Door O/S Control Unit Module A2038201285
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Part no. A1779002107
Door Module Mercedes CLA C118 W177 Front Door Right O/S Control Unit A1779002107
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Part no. A2074400208
Mercedes C207 Parking Sensor Wiring Loom Cable Harness Front PDC A2074400208
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Mercedes W204 Navigation Radio Player Head Unit Hazard Seat Switch A2049009907
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Part no. A2045400608
Mercedes W204 Front Bumper PDC Wiring Parking Loom Harness A2045400608
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Part no. A2044400638
Mercedes C204 Wiring Cable Harness Front Passenger Door Wiring Loom A2044400638
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Part no. A1635400534
Mercedes-Benz M ML W163 Front Left Right Door Wiring Loom Harness A1635400534
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Part no. A6461540002
Mercedes Sprinter W906 OM646 Engine Diesel Alternator Generator A6461540002
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Part no. A2219007301
Mercedes W221 Front Door Control Left N/S Module Unit ECU A2219007301
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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. A0009053303
Radar Sensor Mercedes W204 C117 Rear Blind Spot Right left N/O/S A0009053303
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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 .