decorily

My 250d is due a software update -Ref. No. 5499636.
Can anyone tell me does/might this update, in relation to emissions, change the power output of the engine?
Has anyone who has had this update noticed any change in performance etc?
Thanks.

AS_glc250d

I did not experience any change in power however the consumption figures given by the trip computer have definitely increased from an average of 7.7 to that of 8.4 l/100km. The car seems to be less economic than before the update

decorily

Thank you.