Freeze Protection, Checking And Adding Coolant Additive

WARNING: This page is about a different car, the 2018 Volkswagen Jetta, 2017 Volkswagen Jetta, 2016 Volkswagen Jetta, and 2015 Volkswagen Jetta. However, it is still accessible from the selected car via links, so may be relevant.

Special Tools And Workshop Equipment Required

Refractometer :T10007A

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NOTE:

Read the cut-off line to obtain an accurate value for the following tests. Place a drop of water on the glass using a pipette to improve the readability of the cut-off line. The cut-off line can be clearly recognized on the "WATERLINE".

-- Check the coolant additive concentration using the :T10007A . (Pay attention to the service/repair/system information).

The refractometer scale -1- is designed for coolant additives G12; G12 Plus, G12 Plus Plus and G11.

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

The scale -2- only applies to coolant additive G13.

-- Drain some of the coolant and add coolant additive if the freeze protection is inadequate. Refer to COOLANT LEVEL, CHECKING AND ADDING COOLANT ADDITIVE .

NOTE:

If it cannot clearly determined which coolant additive is in the coolant system, use the scale -2- for coolant additive G13.

Please follow all waste disposal regulations!

-- Check the concentration of the coolant additive again after the road test.