2013 VOLKSWAGEN EOS wiper fluid

Lights
up Possible cause Proper response
Y Not enough windshield washer fluid. Refill windshield washer reservoir at the next
opportunity

When the ignition is switched on, several warning and indicator lights come on briefly for a function
check. They go out after a few seconds.
NOTICE
Failure to heed warning lights or text WARNINGS can result in vehicle damage.
Windshield wiper lever

Fig. 88 Operating the front windshield wiper.

Possible reasons for changes in the way the rain sensor works
The rain sensor may misread what is happening in the detection zone of its sensitive rain-sensor
surface ⇒ fig. 91 (arrow) and not work for a number of reasons; which include:
x Worn out wiper blades: Worn out wiper blades may leave a film of water or wiping streaks; this can
cause the wipers to run longer, to wipe more often, or to wipe continuously at high speed.
x Insects: Insects hitting the sensor may trigger the wipers.
x Salt streaks: Salt streaks on the windshield from winter driving can cause wiping more often or
continuously on glass that is almost dry.
x Dirt: Caked-on dust, wax, any other build-up on the windshield (lotus effect), or car-wash detergent
residue can lower the rain sensor's sensitivity and cause it to react too slowly or not at all.
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. 92 In the engine compartment: Cap of the windshield washer fluid reservoir.

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 ⇒ .
Recommended cleaners
x For the warmer months, Windscreen Clear SummerG 052 184 A1 or equivalent. Mixing ratio
1:100 (1 part concentrate to 100 parts water) in the windshield washer reservoir.
x All-season Windscreen ClearG 052 164 A2 or equivalent. Mixing ratio in winter to 0 °F (-18 °C)
about 1:2 (1 part concentrate to 2 parts water), otherwise, mixing ratio 1:4 in the windshield washer
reservoir.
Filling capacity
The windshield washer fluid reservoir holds 3.1–4.2 quarts (about 3–4 liters); in vehicles with a
headlight cleaning system 3.1–6.3 quarts (about 3–6 liters).
WARNING
Never mix antifreeze or similar additives into the windshield washer reservoir. This could
produce an oily film on the windshield, which would considerably reduce visibility.
x Use clear water with a cleaning solution recommended by Volkswagen.
x If necessary, blend with a suitable windshield washer fluid antifreeze agent.
NOTICE
x Never mix cleaning solutions recommended by Volkswagen with other cleaning agents. If
you do, this could cause sediments or other by-products that can clog the windshield wiper
nozzles.
x When refilling, do not confuse one type of operating liquid with another! Otherwise serious
malfunctions and engine damage can occur!