Missing DLC

Fished out my old Xbox 360 and bought a copy of Forza Motorsport 2 to try and go for some achievements I couldn’t be bothered with when I was younger and I keep getting this message.

“This console is missing downloadable content used in this profile. Please choose a different profile”

I can’t find dlc to download anywhere… someone please help?

You need to go through your download history for the xbox 360 if you have downloaded it previously