Why are VW Tiguan winders swelling when the ignition is turned off?

Each car has its own characteristics and "chips", which some owners mistakenly accept for malfunctions. For example, in the case of Volkswagen Tiguan, after turning off the wiper's ignition, the wiper is slightly flinked and immediately returned. Intimidation of the wipers Volkswagen Tiguan after the ignition is designed to prevent the wiper blade from "sighing" or luring it to the glass when they are rarely used. Intimidation of the Folkswagen Tighan is not a problem.