The intercooler is a front mount between the Radiator and AC condenser. On earlier cars it was a sidemount where you just removed a grille and could clean the exterior. On the newer cars you don't have direct access to it. Of course, it's still a good idea to remove the leaves and dead bugs from the AC condenser so that it's clean.
There's no reason to clean the interior and you don't want cleaner pooling in the intercooler where it could be sucked into the engine.
There's no reason to clean the interior and you don't want cleaner pooling in the intercooler where it could be sucked into the engine.