Freeze Protection, Checking: Notes

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WARNING:

Warning information for the high voltage system:

Procedures where the ignition must be switched off. Refer to PROCEDURES FOR WHICH THE IGNITION NEEDS TO BE SWITCHED OFF .

Special tools and workshop equipment required

Refractometer T10007 A

Fig 1: Identifying Refractometer T10007 A
Courtesy of AUDI OF AMERICA, LLC

Perform the following:

-- Use the pipette to put a drop of windshield washer fluid on the refractometer glass, then close the cover glass.

A light-dark line is clearly visible on the "WATERLINE" scale.

-- Determine the freeze protection of the windshield washer fluid with the help of the scale -4- and the Refractometer T10007 A. To do this, read the value on the light-dark line.

Fig 2: Identifying Scales On Refractometer: Coolant Additive G12 Plus And Coolant Additive G13

Courtesy of AUDI OF AMERICA, LLC

-- If necessary, adapt the freeze protection value by changing the mixture ratio: