Tilting/sliding roof convenience opening with recirculated air button, function - GF77.20-P-2016T

MODEL 211.0/2

up to model year 08/YoM 07

with CODE (414) Power glass tilting/sliding roof

MODEL 211.0/2

as of model year 09/YoM 08

with CODE (414) Power glass tilting/sliding roof

except CODE (494) USA version

except CODE (460) Canada version

Fig 1: Tilting/Sliding Roof Convenience Opening With Recirculated Air Button Communication Diagram

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Function requirements

Circuit 15 "ON"
Tilting/sliding roof normalized
No undervoltage or overvoltage
Previously close tilting/sliding roof via recirculated air switch

Function

When actuating the air recirculation switch (N22s2) (except code (581) Comfort automatic air conditioning) or air recirculation switch (N22/7s2) (with code (581) Comfort automatic air conditioning) the SR motor (M12m1) is actuated in the opening direction until the previously stored position is reached.

If "Closing" via the air recirculation switch is initiated again during the "Opening" sequence before the stored position is reached, then the initially stored opening position is retained.

Aborting the function

Denormalization of tilting/sliding roof
Actuating tilting/sliding roof
Blockage detection
Failure of CAN message (CAN = Controller Area Network).
Actuation of excess force limiter

When the tilting/sliding roof is opened with the recirculated air switch, the windows are also opened in the previously stored position.

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