With the 190E's, they're notoriously known to have weak valve seals/guides, and they do go out about a little past the 150k mark ( depending on condition). At 105k, the timing chain should be looked at. Avoiding this will cause lots of havoc later on, although I know a guy who has 275k+ miles on his car and never changed the timing belt once.
The OVP relay can act up also. Other than that, the 190E's are pretty solid, due to my experience. Do a search in here, and you shall find a few cases of the car stalling and/or having a hard time starting up.
Would anyone like to add more to this?