I am simply trying to inform you about the transmission. If you don't want to believe it, then fine.
But the 2nd gear hold is a VERY DELIBERATE design. I highly doubt that the 2nd gear hold at low coolant temps was an accidental "flaw." That is not very logical.
Every automaker has their own beneficial 'unique' features. This just happens to be one of them.
2006 E350 w/ 155k miles (Daily Driver)
1993 300E 3.2L Sedan w/ close to about 300k miles
2003 E500 Brilliant Silver (Had 217k miles when totalled!)
1989 300E with 289,000 miles (had for <1 yr while in HI)
03 CLK 500 cabrio (Mom's)
2006 C230k (Dad's)
1999 S420 (Mom's/Dad's)
2000 C230k Sport sedans
2001 CLK320 Cabrio (Mom's)
1995 C280 My First Mercedes-Benz... (155k miles. EXCEPTIONAL AUTOMOBILE. Was Very hard to let go of!)