Hello, since I have not found an exhaustive answer anywhere… with the vehicle it is a Volvo V50 2.0D, 136hp – so a PSA D4204T, EZ 2004 with now just over 220.000km… to the timing belt -interval according to service booklet 240.000km or 10 years… of course incl. tensioning roller, turning roller and WaPu- is all clear. But what does it look like with the control chain… in the service booklet I found nothing at all. Therefore, someone knows a question, whether this also g What does Volvo say, or is there any corresponding instructions in the Vida (unfortunately not available to me)? I have already taken a look at the control chain… as far as I can judge, almost no signs of wear can be detected on the chain itself… I was able to use a new chain as a comparison object, a length cannot be faked and also the game in the chain, the chain links is completely identical. I have removed the tensioner… on the slide rail are minimal traces of abrasion… therefore I will in any case renew the tensioner with the upper slide rail -would probably not be necessary, but there are only 3 screws. Actually I wanted to change the chain incl. slide rails together with the timing belt, however, I am now thinking about whether the extra effort makes sense at all… above all because the valve cover is owntliczh and it is already a proper attachment wall means until the camshafts are free – keyword high pressure pump, vacuum pump, seal valve lid. However, the injectors are already dismantled… is quite good, if there is some cleaning and a set of new copper rings (sealings) comes in.