In the Mercedes-Benz and Smart engineering ecosystem, a TAN (Transaction Authorization Number) acts as a cryptographic gatekeeper. Mercedes-Benz implemented TAN codes within their proprietary to restrict access to vehicle software adaptations.
Unlocking dealer-only options like Cruise Control (Tempomat) , paddle shifters (steering wheel gearshift), or Softouch (automatic gear shifting mode).
What do you currently have available?
However, for many "retrofits"—adding features the car didn't leave the factory with—a TAN code is still the primary hurdle for DIYers. Pros and Cons of Using a Calculator vs. Dealer DIY Calculator Mercedes/Smart Dealer Free to $50 (Software cost) $100 - $300 per session Convenience Do it in your driveway Requires an appointment Risk Requires specialized hardware (MB Star) Professional guarantee Control Unlock any feature at any time Often refuse "unofficial" retrofits Essential Hardware for TAN Coding
: Connect a multiplexer hardware interface (such as a Star C3 or C4) directly to the vehicle's OBD-II port. smart car tan code calculator 2011
A Smart Car Tan code calculator works by accessing the vehicle's ECU and retrieving the stored engine codes or Tan codes. The calculator then uses a database of known codes and their corresponding descriptions to provide information about the specific problem or issue.
Coding the steering wheel paddle shifters to work with the automated manual transmission. In the Mercedes-Benz and Smart engineering ecosystem, a
: Unlocking optional equipment that was not enabled from the factory, such as (automatic gear shifting), paddle shifters on the steering wheel, or cruise control (Tempomat) Performance Tuning
The calculator will produce a code tailored to your 2011 VIN. What do you currently have available
Unlocking factory options like Softouch (automatic gear shifting mode), Cruise Control (Tempomat), and steering wheel paddle shifters.