Z18XE in Saab 9-3

Hello Opel municipality! As a former Opel driver again beautiful memories come up when I see the names of the diligent writers here in the forum. My B-Vectra I have now “herited” my brother and he continues to do good services, and after a short trip to the Japanese brand Lexus I returned to the house GM, this time to the “teure” department Saab and got me a 9-3 with the 1.8i. Engine ID Z18XE. The same of the also in several Opel models He immediately made me have a lot of fun in the car, of the dimensions weight etc. is to settle the 9-3 in the Vectra segment. Many Saab drivers speak of a tired toad but to me he suffices and I am completely satisfied so far. Since I bought the car from a dealer about 350km away from my home and of course still used car guarantee is on it I wanted to know if there are typical diseases with the engine since I return to the direction at the end of the month The engine has now run 42000km and is year 2004 When I informed myself in advance the engine seemed to run quite smoothly. I therefore ask you for only a very small percentage of Saab driving around with this engine and even the Saab workshop stands quite perplexed in front of the engine. Be it also for maintenance timing belt change etc. best to my old, reliable O thanks in advance for your answers LG Mario