Quote:
Originally Posted by blk90s13
I already changed the little plastic filter and I have the can spin on filter to do next
Is there anything I should know before taking one out and putting a new one on ? was wondering if its pressurized and if I should follow any certain steps ?
Could not find much info covering this issue in search
thanks all
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Well, with an older model MB diesel - I'll give you my version of how I change my main 'spin-on' fuel filter; first of all, the main filter in my experience is not meant to be 'spun-on.' What I do is grasp the lower part of this filter tightly in one hand, and without stripping the large banjo bolt head - unscrew from the filter, but backing the bolt out of the filter assembly.
Next step is taking a new fresh main filter - and back-filling it with fresh diesel fuel, mixed with Power Service diesel fuel conditioner - filling the filter almost to it's brim, so's you don't have to do as much pumping of the white plastic unscrew pump through valve up-line in the fuel line from the fuel tank. Support the main filter with one hand in-place, whilst you re-thread the banjo bolt down into the filter. When almost snug, stop, and start pumping with the in-line white plastic fuel line pump, until fuel squirts out of the top of the almost snug banjo bolt. Grasping the main filter, pushing it up against the frame base, finish tightening the bajo bolt firmly into the main filter. Wipe off accumulated, fuel from filter and surrounding areas.
With a W210 model, such as I own, there is no in-line pump assembly, so the cranking of the engine fills the remainder of the main fule filter, completely filling the system with diesel fuel.