The Electronic Ignition Switch (EIS) is the heart of the Mercedes security system. When adding a new key or replacing the EIS, the technician must synchronize the component using codes derived from the vehicle’s VIN and Key Number . The extracts these from the DAS (Drive Authorization System) data.
Ever swapped a used COMAND unit, instrument cluster, or airbag control unit? The vehicle goes into "Component Protection" mode. The Special Functions Calculator generates the calculation string that tells the Central Gateway (CGW) to accept the used part as legitimate. Skip this step, and you’ll have a radio that works for exactly 60 seconds before muting. Xentry Special Functions Calculator
However, Mercedes-Benz segregates Xentry access into two primary tiers: The Electronic Ignition Switch (EIS) is the heart
Adjustment of EGR (Exhaust Gas Recirculation), manual regeneration of the Diesel Particulate Filter (DPF), and clearing emissions-related fault codes in SCR/AdBlue systems. Ever swapped a used COMAND unit, instrument cluster,
Before performing critical tasks like:
For rough shifts after a valve body replacement, the calculator doesn't just reset values—it calculates the specific wear compensation based on new component tolerances. Input the old component’s variant coding, input the new part’s calibration code, and the calculator outputs the adaptation sequence.
Supports DAS 2012.11 and earlier, as well as DAS 2013-2018 and newer Xentry versions.