Hello my 2000 mercedes e 320 have a weird a/c problem that i cant figure out, in the morning the ac preforms normally, vaules on climate control (driving) #3- 48 #4- 49 #5 -51 #7- 9 afternoon reading at idle #3-102 #4-85 #5-107 #7-15 please help me i dont understand what could be the problem, in the afternoon those numbers will lower a little and cabin will cool off a little, passenger side more cooler than drivers side afternoon only, morning no problem please help me thank you.