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Table of Contents > Descriptions of work > Window wash/wipe system and headlight washer system: checking function

VW Passat B8 Service Manual ➜ Window wash/wipe system and headlight washer system: checking function

Passat 2015 ➤, Passat 2019 ➤, Passat Variant 2015 ➤, Passat Variant 2019 ➤  
Maintenance - Edition 11.2020  
– Press Infotainment button CAR .  
– Press Setup function button.  
– Press Tyres function button.  
– Press Set function button.  
– Press Confirm function button.  
4.49  
Tyre repair set: Checking  
Note  
Depending on the equipment level, the vehicles are equip‐  
ped with a breakdown set.  
It also contains a filling bottle with tyre sealant.  
The breakdown set is in the spare wheel well in the luggage  
compartment.  
The breakdown set includes a bottle of tyre sealant -2- and a  
compressor -1-.  
The tyre sealant in the bottle has a limited shelf life.  
The expiry date is therefore specified on the bottle -2-.  
– Enter expiry date in maintenance table.  
– If the expiry date has been reached, replace tyre sealant.  
(The tyre sealant must not be more than 4 years old).  
4.50  
Window wash/wipe system and head‐  
light washer system: checking function  
Checking anti-freeze protection of fluid, topping up fluid ⇒ page  
Window wash/wipe system: check spray jet settings and adjust  
if necessary ⇒ page 155  
Headlight washer system: checking spray jet settings ⇒ page  
156  
Windscreen wiper blades: check park position ⇒ page 157 .  
Rear window wiper blades: checking park position ⇒ page 157  
4.50.1  
Anti-freeze: checking protection of flu‐  
id, topping up fluid if necessary  
Special tools and workshop equipment required  
♦ Refractometer -T10007A-  
4. Descriptions of work  
153  
 
Passat 2015 ➤, Passat 2019 ➤, Passat Variant 2015 ➤, Passat Variant 2019 ➤  
Maintenance - Edition 11.2020  
♦ Refractometer -T10007B-  
Note  
In countries and regions where no frost occurs due to the local  
climatic conditions, the anti-freeze protection does not need to  
be checked.  
Read precise value for the following tests at light/dark boun‐  
dary. Using a pipette, place a drop of water on the glass to  
improve the readability of the light/dark boundary. The light-dark  
border can be clearly recognised on the “WATERLINE”.  
– Check concentration of anti-freeze additive using refractom‐  
eter.  
The scale -4- of the refractometer is applicable for the anti-  
freeze protection of the window wash/wipe system.  
Mixing ratio  
Anti-freeze protection  
to  
Genuine washer fluid  
⇒ ETKA  
Water  
-17/-18°C  
-22/-23°C  
-37/-38°C  
1 part  
1 part  
1 part  
3 parts  
2 part  
1 part  
– Top up fluid in window wash/wipe system (only if customer  
requests to do so).  
Use genuine washer fluid ⇒ ETKA throughout all year to fill  
window wash/wipe system.  
Depending on season, a winter product with anti-freeze protec‐  
tion or a summer product with increased cleaning capabilities  
should be used.  
Ready-to-use window cleaner (Ready Mix) does not need to be  
mixed with water.  
154  
4. Descriptions of work  
Passat 2015 ➤, Passat 2019 ➤, Passat Variant 2015 ➤, Passat Variant 2019 ➤  
Maintenance - Edition 11.2020  
Note  
Genuine washer fluid ⇒ ETKA prevents the spray jets, wash‐  
er fluid reservoirs and connecting hoses from freezing.  
In vehicles with fan jets, the reservoir must be filled with  
Genuine washer fluid, as this fluid has a low viscosity at tem‐  
peratures below freezing. Otherwise the complicated spray  
jet system can become blocked by the crystallised washer  
fluid, which affects the spray pattern of the spray jet. Genu‐  
ine washer fluid ensures that the fan jets remain fully func‐  
tional at low temperatures.  
Genuine washer fluid ⇒ ETKA can also be used in the sum‐  
mer. The powerful cleanser easily removes wax and oil resi‐  
due from the glass.  
Frost protection must be guaranteed to approx. -25°C (ap‐  
prox. -35°C in countries with an arctic climate) in the wind‐  
screen wash/wipe system.  
4.50.2  
Window wash/wipe system: checking  
spray jet settings and adjusting if nec‐  
essary  
Note  
If the spray field is uneven due to soiling in the spray jet,  
remove spray jet, and rinse with water opposite to direction  
of spray. Subsequent blowing through with compressed air  
against the spraying direction is permitted. Never use solid ob‐  
jects to clean the washer jets!  
Windscreen spray jet settings  
The spray jets are preset. However, small differences in height  
may be corrected.  
– If both spray fields are not at same height, adjust spray  
direction upwards or downwards as follows:  
4. Descriptions of work  
155  
Passat 2015 ➤, Passat 2019 ➤, Passat Variant 2015 ➤, Passat Variant 2019 ➤  
Maintenance - Edition 11.2020  
1 - Cowl panel in front of windscreen  
2 - Adjuster, Torx size 8  
3 - Fan jet  
4 - Bonnet  
– Adjust the spray jet -3- by turning the adjuster -2- using a  
Torx screwdriver.  
♦ “Clockwise” lower.  
♦ “Anti-clockwise” higher.  
Rear window spray jet setting:  
Note  
The spray jet on the Passat Estate cannot be adjusted.  
4.50.3  
Headlight washer system: checking  
spray jet settings  
NOTICE  
Only control function of spray jets but do not adjust them.  
Washer spray jet: checking settings  
– Switch on dipped headlight.  
– Operate windscreen washing system.  
The headlights are washed if the windscreen wiper lever is held  
in “wipe position” for at least 1.5 seconds.  
The washer fluid jet must hit the headlight lens centrally.  
156  
4. Descriptions of work  
Passat 2015 ➤, Passat 2019 ➤, Passat Variant 2015 ➤, Passat Variant 2019 ➤  
Maintenance - Edition 11.2020  
If spray pattern deviates from specifications, carry out repair  
measures.  
Note  
The same test pattern is also to be used for vehicles with halo‐  
gen headlights.  
4.50.4  
Wiper blades: checking park position  
Sequence of operations  
⇒ Electrical system; Rep. gr. 92; Windscreen wiper system;  
Adjusting windscreen wiper arms  
Note  
Adjusting the wiper blades is a repair measure.  
The repair measure is carried out subject to a separate  
charge.  
4.50.5  
Rear window wiper blade: checking  
park position  
Sequence of operations  
⇒ Electrical system; Rep. gr. 92; Rear window wiper system;  
Adjusting wiper arm  
Note  
Adjusting the wiper blades is a repair measure.  
The repair measure is carried out subject to a separate  
charge.  
4.51  
Wiper blade protection: removing  
Note  
There are 3 different versions of wiper blade protection:  
1. Wiper blade with protective strip and 2 securing clips  
♦ Identification: protective strip with 2 securing clips  
-arrows 1 + 2-  
4. Descriptions of work  
157  

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