Interesting test on post 2 micron fuel fiters

[MyGU8]

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Some good information on Common Rail faults and disgnosis on Issue 1 and 2.

Good read when you get some time:

https://www.delphiautoparts.com/en/techtalks/

[MyGU8]

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Just a quick note on my view:

Looking at the OEM filter design, it is intended for easy hose mounting, by this - it is easy to first prime the filter to clean it up by letting about a couple of litres of diesel run through the outlet (before connecting the outlet hose) to make sure no contamination will enter into the high pressure side.

If the OEM filter is replaced by an aftermarket filter (where most if not all of the filters have permanenet hose fittings, it would be difficult to prime and clean the filter unit during filter replacement.

So my advice is to either keep the OEM filter or if you are intending to replace the OEM with aftermarket filter, include a quick release connection after the filter unit so at least a couple of litres of diesel can be filtererd prior to attaching the filter outlet hose.