Hi all, My wife came home in our MY14 2014 3L CRD and there was diesel trail up our driveway.
Checked underneath and there was a pool of diesel under the filter housing. I got her to start it momentarily to identify were it was leaking. It was spraying with some force out of the rear filter cap. I removed the rear filter and replaced the cap from one of my spares. It had a hairline crack around the base of the moulded hex part for the socket.
I have bought Genuine from the states, Ryco, Wesfil and Sakura in the past and only reuse the caps no more than once. I installed a Ryco on the last service and reused a cap as the Ryco don't come with them. As i said i usually fit new caps and occasionally reuse.
I always use a torque wrench also so were not overtightened.
We were lucky it let go just as she got home and not sixty K's away.