It's kind of impossible to say as yet - the Renegade was only introduced in 2015 so it hasn't been around long enough to get a handle on its reliability. That said, the omens are decent - it shares all its mechanical package with the Alfa Romeo Giulietta and Fiat 500L and both of those cars seem to be doing OK. Certainly, you shouldn't have any major problems with it. 

 

For €32k though? That's a lot to pay for a 1.6 diesel Renegade Limited. According to the Jeep price list you could get the (much better) 2.0 diesel with four-wheel drive for that kind of cash.