Freeze Protection, Checking And Adding Coolant Additive If Necessary

WARNING: This page is about a different car, the 2022 Volkswagen ID.4 and 2021 Volkswagen ID.4. However, it is still accessible from the selected car via links, so may be relevant.

Special tools and workshop equipment required

Refractometer: T10007A
Refractometer: T10007B

NOTE:

The cut-off line can be read to obtain an accurate reading 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 is now clearly recognizable on the "WATERLINE".

-- Check the coolant additive concentration using the Refractometer (observe the operating instructions).

The scale -1- on the refractometer refers to the G12++ and G12evo coolant additives.

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The scale -2- on the refractometer refers to the G13 coolant additive.

-- 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.