I have a 1992 MB 300E. After it sets over night when you start out it doesn't want to up shift for quite a while like maybe a block or so...then when it does it is a very harsh shift. After the first occurence then it is fine from then on till it sets again for a long duration. It's this problem from 1st to 2nd gear. Also, I notice it shifts nice from 1st to 2nd with the air conditioner off, but with the air conditioning on it is a somewhat harsher shift from 1st to 2nd gear. Is this normal from air on to air off? Or should there be no difference in shifting comfort with or without the airconditioning? Has anyone else encountered this problem. Any advise or help would be greatly appreciated. Thank you!!