Clanky cam chain noise back 18 months after new tensioner was fitted

[ReflexRob]

I had my cam belt tensioner replaced with a genuine VW part about 18 months ago. A few months ago which completely stopped the clanky noise that is associated with a slack chain.

I start hearing the noise again very faintly a few months ago and it is getting a tiny bit more noticeable every month.

When the work was done I was told the adjuster was fine and didn't need replacing - the work was done by Dialynx so a very reputable company and I was very pleased with the work they did which included a de-carbon of the valves.

Has anyone else had the noise reappear after having dealt with it before?

[pudding]

Out of interest, what does measuring block 93 say in VCDS?

Mine started off at 0kw when I did the chain and tensioner last year, or whenever it was, but has gradually shifted to -4kw.  Hopefully that is just 'settling' and not chain wear.  I'll keep an eye on it.   But no, mine hasn't started making the diesel clattering noise yet.