Air filter question - 406 hdi 90 2003 plate

Philippe · Post by **Philippe** » Sat Sep 07, 2019 7:38 pm

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 .

Post by **Doggy** » Sat Sep 07, 2019 10:11 pm

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.

frog · Post by **frog** » Mon Sep 09, 2019 7:43 am

My previous air filter had the grey spongy section, the current does not. There is no difference.

Philippe · Post by **Philippe** » Mon Sep 09, 2019 9:48 am

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?

frog · Post by **frog** » Mon Sep 09, 2019 11:34 am

Maybe there is a difference (in life span) when driving in dusty conditions.

406oc.co.uk

Air filter question - 406 hdi 90 2003 plate

Air filter question - 406 hdi 90 2003 plate

Re: Air filter question - 406 hdi 90 2003 plate

Re: Air filter question - 406 hdi 90 2003 plate

Re: Air filter question - 406 hdi 90 2003 plate

Re: Air filter question - 406 hdi 90 2003 plate