I could be wrong, but I think it is having to do with vacuum building up. My '91 300E w/ 192K does the very same thing. I just take it easy for the first mile or so... Especially does this in cold weather. I'm pretty sure this is very normal...

-GH

__________________
For Now:
1992 Mercedes Benz 500SL
1998 BMW 528i
2003 Honda Element
2002 CBR600F4i
1977 Coachmen Motor Home

So, there is no solution for this problem. If anyone elso has an opinion, please let me know.

Thanks for the reply nissan......