New and a few questions

Hello all, I’m new to the VOLVO forum but not quite new to Motor Talk. I/we have bought a V 70 (from the km still virgin, at least for a Volvo) Ez is 07/1997, now has almost 165000 km on the clock. 2.4 turbo with 142 kw. Tüv new. After purchase I have carried out an inspection (oil, Lufi, Z-kerts, all liquids tested). Are there still any things I should do? Have read a lot here in the forum, and also sc The topic ABS/tracks-light is already normal with the vehicles. And I am not excluded from it. Will one or the other send a PN, in the hope that can be helped me further. My service light is also burning. Is there a “reset” or something like that? or do I have to go to the workshop of my trust? With my old BMW 3 I had a kind of “deleter” with which I could reset the service light. t very difficult high and when it is cold it does not remain above. I suspect the usual suspects, the hydraulic dampers for the said tailgate. Only where are they? Not where they are at “standard combos”. I assume that these are installed under the roof sky. How can I get there? paneling off logical. Do I need special tools for the dismantling of the dampers?