thanks, but i have a C-class and not an E.
BTW i was just looking my cars file and i found this.
when i took it to the shop, he scanned it (in march 2008) and here is what the scan says....
scan#1
X431 DTAG report:
Smart box:980242597200
code 034, P1700 transmission shift point retard controllability.

scan#2
X431 DTAG report:
Smart box:980242597200
(1 code 010, outside temperature sensor B10/5 discontinuity short circuit to positive.
(2 code 028, A/C pressure sensor B12 short circuit to ground
(3 code 062, Electromagnetic clutch A9K1 short circuit to ground
(4 code 060, electromagnetic clutch A9K1 discontinuity, short circuit to positive
(5 code 080, temperature regulated air flap Y11/3 to postive

please note that my outside temp. sensor is working fine ( i can read the real ext. temp.)
my a/c does not give any cool air anymore. i also know that the passenger seat belt buckle is defective.
thanks for any help.