What is not typically checked during an intercooler inspection?

During an intercooler inspection, the primary focus is on ensuring that the airflow, structural integrity, and pressure levels are within acceptable ranges for efficient operation. These elements are crucial for the intercooler's performance and efficiency in cooling the compressed air that flows through it.

Coolant level, on the other hand, is not typically assessed during an intercooler inspection because the intercooler itself does not utilize a coolant system like a radiator in an automotive engine. Instead, it relies solely on air to dissipate heat from the compressed air. Therefore, checking coolant levels is not relevant to the function or maintenance of an intercooler, making it the correct choice in this context.