Well, if you are listening Cliffie , you sure don't want any factual info on the reason Benz uses an IAT sensor. Or why they even wasted the time to have a bad one bring up a warning code...those silly Benz designers...what do they know about the temp of the intake air having an effect on the mass of air entering the engine and the different parameters for the Engine Managemant ECU mapping to take that temp into consideration for mapping calculations for the adjusting of the Air/Fuel mixture for max efficiency.
Cliff know all these things..read some of his other excellent technical postings...
Hook it up.