- Compatibility and purpose: This Trverriegelung Schalter is a direct replacement for the front left door lock switch in S-Class models built from 2014 to 2020. - Part number: A2229057507. designed for replacement in the specified models. - Function: Serves as the door lock switch for the front left door, ensuring proper operation of the door lock system in these S-Class vehicles. - Benefits: Provides a reliable solution for maintaining or restoring the door lock functionality in the relevant vehicles. - Key advantages: direct replacement part, helps restore normal locking/unlocking performance, supports ongoing door lock system reliability. - Use scenarios: 1) Replacing a faulty front-left door lock switch in a 2014-2020 S-Class to restore locking functionality. 2) During routine service or maintenance to ensure the front left door lock operates correctly. 3) Keeping as a spare replacement part for workshops or DIY repairs.