That's one of the most obvious blunders. But there are more subtle ones as well, such as:
"Bob ran his hand through his sandy blond hair. He put some lotion on his copper-toned arm."
At first, it doesn't sound like it's a problem. Sure enough Bob knows he has sandy blond hair and dark skin. But the problem is that's what what a character would normally do -- we seldom pay attention to our own features, unless we're for some reasons self-conscious. We don't say, "I put a hat on head full of dark blond hair." We'd just say, "I put a hat on."
Or if the character is preoccupied or distracted, there are things he would not notice. There may be a scratch on the car, but unless and until the character actually notices it, you can't really mention it.
Now, we talked about how much distance you can have in 3rd limited. Granted, you can describe the opulence of the building when the character enters even though normal people don't notice such details. So, in essence, you can get a bit further from your character's POV if you want, but not too much. The thing to ask yourself is: Are the details noticeable and observed by the character, or is the narrator talking here? Things such as "there was a scratch on the car" is a POV violation if the character hasn't noticed it.