206 hdi 163.000 maintenance recommendations

my vehicle 206 hdi 163 thousand km vehicle I have been traveling for 60 years since I bought it for about 2 years, during this time I changed the oil before the time came, the timing set changed about 30 thousand km ago, I always have the parts in the front tool parts checked by the industry, and if necessary, it changes.

As I know, there is a torsion problem in 206, I frequently encountered in the forum, last year the balls have changed, but the same problem is again this year, the sound coming out on the paved road bores me very much. They said we can not say anything, they said that filling can be in question, they said that the expense will increase.

Since my vehicle is 163 thousand km, what could be the engine parts that need to be looked at or if there could be injectors control or something, I wanted to consult you.