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: Notes
Special Tools And Workshop Equipment Required
- Refractometer T10007 A
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Perform the following:
-- Use the pipette to put a drop of windshield washer fluid on the refractometer glass, then close the cover glass.
A light-dark line is clearly visible on the "WATERLINE" scale.
-- Determine the freeze protection of the windshield washer fluid with the help of the scale -4- and the Refractometer T10007 A. To do this, read the value on the light-dark line.
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-- If necessary, adapt the freeze protection value by changing the mixture ratio:
Use the Manual With the Right Hardware
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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.