C340 falling

 

My Garmin C340 is falling off the window now that the car is gtettiong hot.
I have cleaned the window and suction mount with alcohol.
Any suggestions?

Very thin layer of vasaline

Very thin layer of vasaline on the cup.

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Charley - Nuvi 350 - Bel STI Driver - Cobra 29 w/ wilson 1000 - AIM: asianfire -