Freeze Protection, Checking And Adding Coolant Additive If Necessary

WARNING: This page is about a different car, the 2020 Volkswagen Tiguan, 2019 Volkswagen Tiguan, and 2018 Volkswagen Tiguan. However, it is still accessible from the selected car via links, so may be relevant.

Special Tools And Workshop Equipment Required

Refractometer: T10007 A

Fig 1: Refractometer : T10007 A
Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

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 : T10007 A . (Pay attention to the Owner's Manual).

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

Fig 2: Identifying Scales On Refractometer: Coolant Additive G12 Plus -1- And Coolant Additive G13 -2-

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 FILLING IF NECESSARY .

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.