Get Windshield wipers and washer -> Rain sensor Guide for Volkswagen Tiguan 4 Door First Generation (2007-2016)

Rain sensor

Fig. 93 Windshield wiper lever: Adjusting rain sensor 1.

Fig. 94 Sensitive rain sensor surface.

ꢀ Please first read and note the introductory information and heed the WARNINGS

When switched on, the rain sensor automatically shortens or lengthens the delay between wiping

intervals depending on how hard it is raining ⇒ꢀ

. The rain sensor's sensitivity can be adjusted

manually. Manual wiping (vehicles without rain sensors)

Push the lever into the desired position ⇒ꢀfig. 93:

(A)

(B)

(1)

Rain sensor off (windshield wiper lever in home position).

Rain sensor active – automatic wiping as needed.

Adjusting the sensitivity of the rain sensor:

–

Move switch to the right – high sensitivity.

Move switch to the left – low sensitivity.

After switching the ignition off and back on again, the rain sensor stays on and works again with the

wiper lever in position (A) when the vehicle speed is over 10 mph (16 km/h).

Even if the rain sensor is disabled, it is still necessary to reach this speed to reactivate the wipers

when the windshield wiper lever is in the intermittent wiping position. The wipers then wipe at fixed

intervals instead of wiping as needed, as they do in rain sensor mode.

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. 94 (arrow) and not work for a number of reasons, which include:

ꢀ

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.

Insects: Insects hitting the sensor may trigger the wipers.

ꢀ

Salt streaks: Salt streaks on the windshield from winter driving can cause wiping more often or

continuously on glass that is almost dry.

Dirt: Caked-on dust, wax, any other buildup 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.

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 smaller 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.

ꢀ

Switch the wipers on manually when water on the windshield reduces visibility.

Clean the rain sensor's sensitive surface ⇒ꢀfig. 94 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. 95 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.

ꢀ

Open the engine hood ꢀ

ꢀ

The windshield washer fluid reservoir can be identified by the ꢀ symbol on its cap ⇒ꢀfig. 95.

Check if there is still enough windshield washer fluid in the reservoir.

Windshield wipers and washer -> Rain sensor for Your Volkswagen Tiguan 4 Door First Generation (2007-2016)

Related Topics

Popular Owner Manuals

Latest Owner Manuals