Key out, interior fan runs even though I have not activated the feature on 2007 Mercedes-Benz ML320 CDI

the interior fans continues to run after the car is turned off and the key is removed. Fan recently run on defroster mode for a long period due to weather.

Asked by for the 2007 Mercedes-Benz ML320 CDI
Gotta check relays , i think that circut relay is no good.
I have the same problem.
Key out , Engine off but interior fan still running.
Pulled all Relays and Fuses in front but still running.

Are there other relay location besides the engine compartment?
How about temp sensor shorted