Special service procedures - AP00.20-P-0000-06B
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Have the brake fluid replaced if more than 2 years have elapsed since the last change; this is best done in the spring.
The coolant should be inspected for correct anticorrosion/ antifreeze concentration before the beginning of, and during the cold season of the year. Depending on the model series, the coolant has to be replaced every 3 years or 15 years (or after 250,000 km).
Refer to the particular valid service sheet for further additional operations based on kilometers or years.