Check Coolant Condition
Operational Monitoring Of Coolant^ Check the coolant for its resistance to cold temperatures before the start of the cold season.
^ In countries with high outside temperatures, check anti-corrosion/anti-freeze agent concentration once a year.
^ The corrosion protection of the coolant is degraded during operation. Such coolants have a severely corrosive effect.
^ The maximum period of use of a specified coolant in car engines is 3 years.
^ When topping up (after loss of coolant), it must be ensured that an anti-corrosion/anti-freeze agent concentration of 50% by volume exists in the coolant to provide anti-freeze protection down to -37° C.
^ Before pouring in fresh coolant, the cooling and heating system must be free of used coolant and of corrosion residues; for this reason, clean cooling and heating system.