300TD (123.193) L5-3.0L DSL Turbo (617.952) (1984)
4
Place holding wrench on valve spring retainer.
5
Unscrew cap nut (63) by means of valve adjusting wrench.
For this purpose, apply counterhold to counternut (63a) by means of second valve adjusting wrench.
6
Unscrew counternut (63a).
7
Remove valve spring retainer and valve spring.
8
Check valve spring, renew according to condition.