Engine goes off, after about 1 hour runs again.

Hello, my first question here. I don’t really know about the car, so be patient with me. Volvo 850 GLT 125kw / 1993 / 250 000km So the following: Start and go, after about 10min the engine somehow falls into a “hole” and goes out and does not start again. After about 1 hour the engine starts again and runs perfectly for the rest of the day, also switch off several times and start again no problem. Can then go there and then park and drive 10min again again again without any problems – so just normal. But ALWAYS only after the first “forced break” – so drive 10min, then take an hour break, then drive again completely “normal” car… The ADAC man meant he would see spark from the ignition coil at the start – but I don’t see them, but as I said I have no idea… 🙂 The problem is now that the ignition coil at the Volvo 250,- Euro costs and I would otherwise find the thing fitting on the net only for 1995 models or newer. Will the ignition coil also be suitable for a 1993 model too?