Why does the windshield wiper move once when the Tiguan L is turned off?
2 Answers
Tiguan L's windshield wiper moves once when the engine is turned off because the wiper stroke is designed with a reserved position. When hydraulic pressure, air pressure, or electrical power is lost, the wiper returns to its origin. Additionally, this design prevents the wiper from freezing to the windshield in winter and melting the wiper rubber strip due to high temperatures on the glass in summer. More information about the Tiguan L is as follows: 1. Introduction: The Tiguan L is the extended and upgraded version of the Tiguan, built on a new platform. It abandons the rounded appearance of the Tiguan, featuring a more angular and robust body design, and is equipped with full LED front and rear light groups for superior illumination. 2. Safety Features: The new Tiguan L comes standard with ESP vehicle stability system and front side airbags. The top-tier flagship model includes a pre-collision safety protection system, knee airbags, lane-keeping system, 360-degree parking camera, and HUD head-up display system. 3. Powertrain: The new Tiguan L offers two powertrain options: 330TSI and 380TSI, equipped with the third-generation EA888 turbocharged engines in 1.8T and 2.0T displacements, respectively. The former delivers a maximum output of 180 horsepower and a peak torque of 300 N•m, while the latter offers 220 horsepower and 350 N•m of torque. Additionally, the 380TSI model features Volkswagen's 4MOTION all-wheel-drive system and includes a driving mode selection function.
After years of working on cars, it's extremely common to see the Touareg L's wipers make one last swipe after engine shutdown. This is actually the wiper's auto-reset function at work. Volkswagen designed it to park at the lowest hidden position, protecting the wiper blades from weathering due to sun and wind exposure. When you turn off the ignition, the body control module receives the signal and immediately commands the wiper motor to rotate an extra half turn to return to position. That single movement involves precise coordination between angle sensors and limit switches. If you ever hear grinding noises during reset or notice misaligned parking, it's likely due to loose transmission links or worn reset gears - requiring inspection of the wiper arm base. Under normal conditions though, this intelligent design requires zero maintenance.
