Cold start : smells like something burning

[Gary(rs4)87]

When I start the car in a morning burning smells come in to the car. I tried to check where is it come from but I didn’t see anything. Anybody have a same issue before? Thanks for the help

[Litimag]

If it's a burning oil smell my guess would be a minor leak on a rocker cover gasket, a little oil building up on the pipes overnight then being cooked off in the morning. I had this, just needed tightened.