I done mine yesterday it came in a box with a cap on either side of the new filter left one cap on ate the front of it the way the arrow was poi tingtook rear cap of put my pipe on it with a small funnel attached to it filled filter with diesel took my pipe off put cap back on took cap off the front put pipe back on from car done the same to the rear of the filter fitted pipe pitkt all back together started first time no bleeding needed job done.