300SE (126.024) L6-3.0L (103.981) (1989)
Special Tools
Note
The adhesive plate used (Fig. A) (arrow) has been replaced as of February 1988 by a cast setting scale (Fig. B) (arrow).
On vehicles with adhesive plate (Fig. A) (arrow), tension poly-V-belt as follows.
Turn tensioning nut (5) until setting pointer (13) is matched with the following scale graduations.
Engine w/o A/C compressor 5th graduation
Engine with A/C compressor 7th graduation