Sixto:

So far as I know (and I'm not claiming omnipotence here!) most the later (post 88 or so) MB temp sensors are dual duty. Save a buck or two, eh?

The temp senorr on my sister's 92 Volvo was a wierd one too -- looked just like the earlier ones I snagged from the u-pullit when I did her head replacement a couple years back, but has TWO thermistors instead of one. Needless to say, the replacement caused a error code. All the temp senors were fried by the loss of coolant (along with the head -- badly warped -- and the plastic parts and thermostat). Sis never does things by halves!

I don't suppose there is any real reason to get upset by higher temps -- the greater the difference in temp between the rad and the air, the greater the heat transfer, but I'm surprised.

Then again, I don't have anything that new.

Peter

__________________
1972 220D ?? miles
1988 300E 200,012
1987 300D Turbo killed 9/25/07, 275,000 miles
1985 Volvo 740 GLE Turobodiesel 218,000
1972 280 SE 4.5 165, 000 - It runs!