Just watch the temp gauge on the dash and make sure it's doesnt go over half with normal driving and you will be right. If you want to improve the engine bay temp ensure your radiator's fins arent blocked and grills arent covered with a massive number plate, air filter is clean and unblocked, Exhaust system flowing well, Fan's are kicking in at the right speeds and temp's, not sure what else will making the engine bay hot, Heat sheilds on the turbo and exhaust manifold,,,, etc Really if some of these are happening your engine coolant temp on your gauge would be reading higher.