A 190E is normal at that temp range. The clutch fan only turns on at 100 degrees and at idle it is not doing much cooling. I actually wired my aux fan to turn on instead since it coold a bit quicker. Check out the 190revolution.net forum. Since we all have 190's over there, there is a lot more input from guys with the same car. I know my C230 does not ever get that warm but the 190 is in perfect cooling shape and it has done that from day one. They are known to have smaller radiators so they warm up faster to meet emmissions standards in the US at the time. MB's maint CD also states that these temps are within spec. Mine needs a new radiator but it still does not overheat and never goes over 110 on my gauge. My gauge is actually 5-10 degrees over, I replaced it and it does not read properly but the fuel gauge is better than the original so I keep it in there and just remember it is off. My fans according to the gauge come on at 110, actually 100 and never go higher. But that is because I use the aux electric fan instead of that useless at idle clutch version. As long as when the temp hits between 100 and 105 you have the fan clutch engage then you should be fine. These engine according to MB will not get damaged unless they go over 120!

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~Jamie
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2003 Pewter C230K SC C1, C4, C5, C7, heated seats, CD Changer, and 6 Speed. ContiExtremes on the C7's.

1986 190E 2.3 Black, Auto, Mods to come soon.....