Remy is on a season-long loan from QPR.
Tiote told The Journal: "Loic is very important for us. He's a great player and he scored two fantastic goals.
"I hope he will continue to score because we need him and we need his goals - they are so important for us and at Cardiff they were the difference between winning and losing.
"He's going to be important for us this season and if he continues to score and play like he did we will be able to finish in the top ten.
"I hope the chairman will buy him. You never know, but he's already shown how important he is for us and it would be a big loss if he didn't sign at the end of the season."
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