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
Special tools and workshop equipment required
- Refractometer T10007 A
-- Check the coolant additive concentration using the Refractometer T10007 A. Refer to the Owner's Manual.
The refractometer scale -1- is designed for coolant additives G12; G12 Plus, G12 Plus and G11.
The scale -2- is designed only for coolant additive G13.
-- Drain some of the coolant and add coolant additive according to the mixture ratio if the freeze protection is inadequate. Refer to COOLANT LEVEL, CHECKING AND FILLING .
The freeze protection must be ensured down to approximately -13° F (-25 °C).
If you cannot clearly determine which coolant additive is in the coolant system, use the scale -2- for coolant additive G13.
Follow all disposal regulations.
-- Check the freeze protection after the road test.
NO RELATED
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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.