Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Freeze Protection, Checking And Adding Coolant Additive If Necessary
Special Tools And Workshop Equipment Required
- Refractometer:T10007A
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 . Refer to the operating instructions.
The scale -1- on the refractometer applies to coolant additive G12 Plus Plus.
The scale -2- only applies to coolant additive G13.
-- Drain some of the coolant and add coolant additive if the freeze protection if the frost protection is inadequate. Refer to COOLANT LEVEL, CHECKING AND FILLING IF NECESSARY .
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.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.