Thread: Air Filter on D4 TDV3.0 HSE?

Bang it on the ground and put it back in .......... and buy a spare
incase the dust is too fine .

Thanks for the detailed answer Neil!... I think I may have done as you suggested several times in my trusty 100 Series and it was obvious how to go about it. Hell it even has a dust collector so you didn't have to pull the whole thing apart everyday.

Have you had a look under the bonnet of a 3.0TDV6? All I see is a large air box with hoses all over it. Yes I'll probably just work it out myself.

Unscrew the case and lift it . It's not like my LC100 either
There's very little "play" in these LR cases , so if your loom has
no-give , then you'll need to disconnect a plug too. You can't
cause mayhem in there. Don't panic.

OK, since we're on the topic of Air Filters, I have a question that I did a quick search for on Disco 3 and here. Is there a concensus on K&N Air Filters?

From what I've read on the forums, they may not be as effective in keeping fine dust out, so may not be good for vehicles constantly off road?

I have always changed my air filters in my previous cars over to K&N because I do actually feel the miniscule power increase, the engine seems to rev easier, and there is a nice induction noise as well. I haven't been on extended offroad trips in the past, so haven't been too worried about too much extra dust getting through.

Originally Posted by eddomak

OK, since we're on the topic of Air Filters, I have a question that I did a quick search for on Disco 3 and here. Is there a concensus on K&N Air Filters?

From what I've read on the forums, they may not be as effective in keeping fine dust out, so may not be good for vehicles constantly off road?

I have always changed my air filters in my previous cars over to K&N because I do actually feel the miniscule power increase, the engine seems to rev easier, and there is a nice induction noise as well. I haven't been on extended offroad trips in the past, so haven't been too worried about too much extra dust getting through.

As with any vehicle, If you are willing to reduce engine life in exchange for a "miniscule power increase" (and or placebo effect) and a "nice induction noise", then go right ahead. It may also void your engine warranty???

Roverlander, it is better not to clean your filter unless absolutely necessary. The extra dust actually aids filtration.

Originally Posted by isuzurover

As with any vehicle, If you are willing to reduce engine life in exchange for a "miniscule power increase" (and or placebo effect)

Horses for courses, I guess. Some of my previous cars were quite underpowered, and every KW counts. And it definitely wasn't so minor as to be a placebo effect.

Thanks for the experience from the offroad perspective though.

Hi eddomak, I too have used the K&N filters before and believe that they do aid in air flow. After all, your vehicle relys on air and fuel to move forward.
I would be interested in others comments
Cheers, Craig

Originally Posted by Disco4SE

Hi eddomak, I too have used the K&N filters before and believe that they do aid in air flow. After all, your vehicle relys on air and fuel to move forward.
I would be interested in others comments
Cheers, Craig

It certainly "aids airflow" - or more correctly, reduces pressure drop across the filter, but only in the same way that removing the filter/intake ducts would also decrease pressure drop.

Would you drive a 4x4 with no filter at all?

A number of italian supercars and bikes of yesteryear ran no air filters at all. However I suspect the owners could likely afford regular engine rebuilds. They also weren't 4x4s, and probably weren't driven in dusty countries like AU.

Filter manufacturers design filters to have sufficient filtration efficiency (particle removal) with the minimum pressure drop possible (given space and cost constraints).

Aftermarket foam/cotton media are no different, however the manufacturers of such filters have decided that "sufficient" filtration efficiency is a lower number than the filter/vehicle manufacturer has. It is not as if they have a sophisticated media or anything like that - the OEM filter manufacturers usually have much more sophisticated/optimal media in their filters.