To change the DW 10 engine strap, Citroën recommends a user that is worth an egg (marras tensiometer).
As normal is to tighten it to the eye, it is easy for you to tense and that's why I spit it out, because when you change Correa, in the Dayco kit the rollers come and a small glossary with the instructions (which almost nobody reads

).
The pulls is because it carries the phase sensor in the camshaft and if you have tense, the injection point is advanced and \ "perrea \" the engine.
The issue referring to the fact that the Chille Alternator Correa is or because it is made m ... or because the tensioners are more or less than to change them, the interval of change of service belt is done according to the visual state of the belt and the rollers (especially the plastic that goes up), but many times the two straps of the pull are changed and the workforce of the change of the distribution belt is used to make an offer to make an offer to make an offer to make an offer to make an offer to make an offer to make an offer to make an offer to make an offer to make an offer to make an offer to make an offer to make an offer to make an offer to make an offer to pay only and exclusively the service strap and the rollers, since in the other way he pays twice and you work twice.
All the best.