We got a code p0299. We have a bit of whining which is why we checked for a code

What is your question?

The mechanic is telling us we have a cracked manifold. We have no symptoms of a cracked manifold. It seems to be more like the EGR valve. Should we get a second opinion?

What makes this problem better or worse?

accelerating

How long has your 2015 Land Rover Discovery Sport had this problem?

about a week