Procedures
03 - Service Procedures
Windshield and Headlamp Washer System, Checking Function
• Windshield Washer/Wiper System, Checking Freeze Protection and Filling Fluid
• Windshield Washer System, Checking and Adjusting Spray Nozzles
• Headlamp Washer System, Checking and Adjusting Spray Nozzles
• If during the function test it is determined that the wiper blades are juddering or making noises, check the pitch angle of the wiper blades => [ Windshield Wiper Blades, Checking End Position and Angle ] Windshield Wiper Blades, Checking End Position and Angle.
Windshield Washer/Wiper System, Checking Freeze Protection and Filling Fluid
Checking freeze protection concentration:
Special tools, testers and auxiliary items required
• Refractometer (T10007)
Read the bright/ark boundary to obtain an accurate reading for the following tests. Place a drop of water on the glass to improve the readability of the bright/dark boundary. The bright/dark boundary can be clearly recognized on the "WATERLINE".
- Check the concentration of the anti-freeze additive using refractometer (T10007) (operating instructions).
The scale - 1 - of the refractometer ( T10007) is designed specifically for genuine Volkswagen Windshield Clear (G052164).
The scale - 2 - is designed for commercially available windshield cleaner as well as a mixture of commercially available windshield cleanser and (G052164).
Mixture Ratio
Filling-up with fluid:
The windshield wash/wipe system fluid reservoir must be filled up fully.
Use only "Genuine Volkswagen Windshield Cleaner" all-year-round when topping-up the windshield wash/wipe system.
• All vehicles have fan type spray jets and must be filled with " Genuine Volkswagen windshield clear" as this fluid has a low viscosity at minus temperatures. The complicated spray jet system could otherwise become blocked due to crystallized washer fluid that can affect the fan pattern of the spray jet. "Genuine Volkswagen windshield clear" assures that the fan type spray jets remain functional even at low temperatures.
• Genuine Volkswagen Windshield Clear (G 052 164) protects the spray nozzles, fluid reservoir and hoses from freezing.
• Fill with genuine Volkswagen Windshield Cleaner in the warmer season also. The powerful cleanser removes wax and oil deposits from the windows.
• Freeze protection must be guaranteed to approx. 5 °F (-15 °C (approx. -31 °F (-35 °C) in countries with an arctic climate) in windshield washer system.
Windshield Washer System, Checking and Adjusting Spray Nozzles
Special tools, testers and auxiliary items required
• Adjustment tool (T10127) equipped with needle 3125/ 5 A
Windshield
• The spray nozzles must not be cleaned opposite to direction of spray, e.g. blown-through from front.
The washer nozzles are preset. Small height adjustments can be made.
If both spray areas do not share the same height - A - and - B -, correct spray direction upward as follows:
• Two different spray nozzle types have been installed.
Spray nozzle type 1:
- Rotate eccentric - 1 - on spray nozzle in direction of - arrow - using a screwdriver. This changes the height setting of the spray pattern - 2 -.
Or
Spray nozzle type 2:
- Adjust spray nozzle on adjuster - 1 - by hand upward or downward.
Headlamp Washer System, Checking and Adjusting Spray Nozzles
Spray area should be directed on to center of headlamp lens.
• Spray nozzles are preset and are not adjustable.
• If the spray nozzle is uneven or does not attain the center of the headlamp lens, the spray nozzle must be replaced.