Hi Munir,

Since you have the manual, changing the belt should not be a problem for your mechanic. To remove the belt, pull it down at the longest point until the dynamic tensioning arm can be fixed in the corresponding hole with a suitable pin. The biggest problem is often remembering the course of the belt. A photo or a drawing is very helpful. If the length of the belt is not visible, you can cut it after removal and measure the length in millimetres. 6PK is definitely correct.

Beste Grüße
Tim