Pellegrini was keen to highlight Manchester City's form towards the end of last campaign as proof that too much is made of Kompany's absence.
"No, I don't agree with your conclusions," Pellegrini told reporters on Monday when asked if Kompany's absence was key to his side's poor form.
"The whole season there are a lot of games we played without our important players. We must make a balance of the whole season," the Chilean added as he prepared his side to face Borussia Monchengladbach in the Champions League on Tuesday.
News that makes sense
Your trusted source for staying up-to-date with the world around you. Get free daily news updates and analysis, straight to your inbox.
"Last season, we finished the last six games without Vincent Kompany, we won the six and had four clean sheets.
"It depends on the performance of individual players, it depends on a lot of things. In the last two years, we played a lot of games without important players."
Kompany will also miss the Group D encounter at the Etihad Stadium in which City, who have already ensured their place in the last 16, could overtake Italian side Juventus at the top of the pool with a victory.
Juventus -- two points clear of the Premier League side and with a better head-to-head record -- travel to Sevilla in their final group game.
(Reporting by Shravanth Vijayakumar in Bengaluru; Editing by John O'Brien)
