Grafite admits his side are desperate to prove a point against the Red Devils.
The meeting between United and Wolfsburg at Old Trafford ended in home win but the Germans were unlucky not get anything from the game.
“I return to the Champions League after the punishment and I want to score a goal against United,” he told Sky Sports.
“We left Old Trafford with an unhappy face because we deserved at least one point.
“In this group we have deserved more points and the qualification for the following round. We are motivated by this and by the enormous importance for our club.
“For Wolfsburg to qualify from the first phase in our debut in this competition is an incredible success.”
“They suffer some injuries but that is not too significant – Man Utd possesses a sensational squad and all players are dangerous and able to win in any venue,” he added.
“Always United are a dangerous squad and I do not believe they arrived for a holiday in Germany. Wolfsburg need to play very well to get the victory.
“Their midfield and attack is sensational. With the substitutes they have Man Utd never offer a chance to their rivals.”