Routing the serpentine belt is very easy. Do you already have the old belt off? There should be a diagram on the bottom of the hood for the belt. If there is not I would go to a dealership ask to look under the hood, of ANY 318 because they are all similar. I've never put a belt on a 318 yet, but take a pry bar to the idle tensionor pulley lift up to take belt off. Or loosening the alternator can leave enough play room to get it out, and loop it through the fan. To put back on same process; lift up on tension er pulley while putting the belt around the fan.