CL63 harsh downshifts

[kj217]

my 08 CL63 downshifts into 3rd gear noticeably harsh and rigid. it downshifts fine if i manually selected 3rd down from 4th. it is better in C mode but it is annoying in S mode.
is that normal?

thanks.

 

[The _Don]

No, have you changed the transmission oil?
A software update from the main dealer might help.

 

[kj217]

No, have you changed the transmission oil?
A software update from the main dealer might help.

thanks for the reply,,
oil and filter were changed 3k miles ago,,
and local dealer claims that no software update available for my car,,