Special service procedures - AP00.20-P-0000-06B
WARNING: This page does not describe the selected car, but rather 42 other vehicles, including the 1999 Mercedes-Benz S600, 1999 Mercedes-Benz S500, 1999 Mercedes-Benz S420, 1999 Mercedes-Benz S320, and 1999 Mercedes-Benz CL600. However, it is still accessible from the selected car via links, so may be relevant.
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.