Dumb Question:

How would the car behave if you removed/disconnected the Throttle Micro Switch (or "Sender Unit" as the dealer calls it) altogether? Would it idle normal, fast or what?

I purchased a new one and will probably not install it until the weekend since I am curious about the idle pattern I am observing and want to see if it holds:

First drive of the day: Normal (550) to 750 idle in drive, 750 in neutral.

Lunch time drive: 1000rpm in drive, 1500 in neutral.
Restart after lunch: 750 in drive, 750 to 1000 in neutral.

After work drive: 1000 rpm in drive, 1500 rpm in neutral.

This has been the pattern since last Friday. (5/28)

__________________
2008 E350 4matic / Black/Anthracite

------------------------------------
Gone but not Forgotten:
2001 E430 4matic, 206,xxx miles, Black/Charcoal
1995 E320, 252,xxx miles, Black/Grey
1989 260E, 223,00 miles, Black/Black