x Crack or chip in the windshield: If a stone hits and chips the windshield while the rain sensor is on,
this will trigger a wiper cycle. After that, the rain sensor will recognize the change and recalibrate itself
to respond to the sensitive surface's reduced detection zone. Depending on the size of the chip, the
sensor's reaction pattern may or may not change.
WARNING
The rain sensor cannot always recognize rain and activate the wipers.
x Switch the wipers on manually when water on the windshield reduces visibility.
Clean the rain sensor's sensitive surface (arrow) regularly and check the wiper blades for wear or
damage.
To remove wax and coats of polish safely, we recommend using an alcohol-based windshield
cleaner.
Checking and refilling windshield washer fluid
Fig. 82 In the engine compartment: Cap of the windshield washer fluid reservoir.
¤Please first read and note the introductory information and heed the WARNINGS
Check the windshield washer fluid level regularly and refill as necessary.
There is a filter screen in the filler neck of the windshield washer fluid reservoir. The screen helps to
keep large particles and debris from getting into and clogging the windshield washer nozzles when
adding windshield washer fluid. Take the screen out only to clean it. If the screen is damaged or
missing, have it replaced immediately, otherwise the system may become clogged and not work
properly.
x Open the engine hood
, Working in the engine compartment.
x The windshield washer fluid reservoir can be identified by the
y
symbol on its cap ⇒
fig. 82.
x Check if there is still enough windshield washer fluid in the reservoir.
x Refill with an appropriate windshield washer fluid that is recommended by Volkswagen ⇒
.
Follow the directions on the container.
x In cold weather, always use a special windshield washer antifreeze solution that will help keep the
water from freezing ⇒ .
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