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Air filter question - 406 hdi 90 2003 plate
Posted: Sat Sep 07, 2019 7:38 pm
by Philippe
I changed my air filter today and the old filter had a grey spongy section (1 cm thick) attached to the bottom of the yellow fins . this seemed to operate as an extra layer or filter? However , the new filter I ordered had no such grey filter. Is the grey bit an optional extra or is it vital?
I couldn't understand why the replacement did not have this .
Re: Air filter question - 406 hdi 90 2003 plate
Posted: Sat Sep 07, 2019 10:11 pm
by Doggy
HI & welcome aboard Phillipe.
I think both versions of air filter element are common, I would not worry about it as either style will prevent unwanted debris being digested by the engine.
Re: Air filter question - 406 hdi 90 2003 plate
Posted: Mon Sep 09, 2019 7:43 am
by frog
My previous air filter had the grey spongy section, the current does not. There is no difference.
Re: Air filter question - 406 hdi 90 2003 plate
Posted: Mon Sep 09, 2019 9:48 am
by Philippe
It does sound like the grey spongy bit performs no actual function then ? It's a bit of a funny one because it makes you wonder why they bother with it then if it makes no difference?
Re: Air filter question - 406 hdi 90 2003 plate
Posted: Mon Sep 09, 2019 11:34 am
by frog
Maybe there is a difference (in life span) when driving in dusty conditions.