Daf xf 95 480

change the air dryer cartridge every 6 months

if the DAF is the auto, there is a small air tank between the diesel tank and the lift axle, it has a solid plug in the bottom hole, swap it for a drain plug, and drain it VERY REGULARLY, if water gets in the clutch actuator, it will be very costly to replcace

check on the engine for signs of water leaking from the head gaskets
grease the cab mounts regular, alternatively, you can purchase from DAF a self greasing system that fits on to the side of the cab mounts and then simply replace the cartridge when it is empty