Forum-Gallery-Shop-Sponsors

« Advertise on Freel2.com

Home > Maintenance & Modifications > K&N air filter
Post Reply  Down to end
Page 1 of 1
Print this entire topic · 
janderson41



Member Since: 11 Mar 2012
Location: Howwood Renfrewshire
Posts: 405

Scotland 2010 Freelander 2 TD4 HSE Auto Stornoway Grey
K&N air filter

2010 HSEAuto
As said before ,still learning after 4 months.
Car is fitted with a K&N air filter.
Took top lid off to check. To me filter looks like a standard filter with oil on it.
As no experience of this type of filter is that what it looks like?
Have googled K&N ,read lots, but just don,t know.
On previous zDisco,s I changed all filters yearly regardless of miles.
Filter box looks standard to me.
Question is, could I just take out the current filter, clean inside box and replace with standard filter.
Current filter looks clean. Just my thoughts. Jim A
Fl2 HSE 2010 auto
Disco 2Td5 auto 2002 gone
Disci 1 300Tdi auto 1996 gone

Post #413605 21st Oct 2021 7:22 am
View user's profile Send private message View poster's gallery Reply with quote
dondiddy



Member Since: 16 Apr 2017
Location: Hamilton
Posts: 749

United Kingdom 2012 Freelander 2 TD4 HSE Manual Firenze Red

Jim, The K&N filter is a lifetime filter and can be cleaned and reused over and over. The main part of the filter should look a pinky red colour as opposed to a standard filter which is normally yellow. It should be good for around 50,000mls before needing cleaned under normal use. K&N do a kit to clean the filter which consists of a cleaning spray and new oil. K&N claim a performance improvement and improved filtration and they are used extensively by the go faster brigade! If it looks clean then I would just clean the filter box and refit it. If you are going down the route of a standard filter then don`t bin the K&N as there is probably some one on here who will want it for a few £`s! as I think a new one is about £50 or so! Thumbs Up

Post #413608 21st Oct 2021 8:30 am
View user's profile Send private message View poster's gallery Reply with quote
Bobupndown



Member Since: 26 Dec 2014
Location: Upside down behind the TV!
Posts: 2622

United Kingdom 2014 Freelander 2 SD4 GS Auto Orkney Grey

Had one on my Discovery 2, didn't notice any perceptible difference. Cleaned it occasionally with petrol and re oiled it. Landrover - turning owners into mechanics since 1948

2014 Orkney grey Freelander SD4 GS.
2004 Zambezi silver Discovery 2 Td5 (Gone)
1963 Surf blue Morris Mini Minor Super de Luxe (my little toy)

Post #413631 21st Oct 2021 12:41 pm
View user's profile Send private message View poster's gallery Reply with quote
Jack frost



Member Since: 21 Dec 2011
Location: UK
Posts: 796

United Kingdom 

Take it out & put a genuine LR filter in, change it every 12,000 miles job done Thumbs Up same goes when you change your fuel filter make sure it’s a genuine LR filter but it’s every 36,000 miles.

Post #413692 22nd Oct 2021 7:01 pm
View user's profile Send private message View poster's gallery Reply with quote
Bobupndown



Member Since: 26 Dec 2014
Location: Upside down behind the TV!
Posts: 2622

United Kingdom 2014 Freelander 2 SD4 GS Auto Orkney Grey

I did read somewhere that they can lead to premature failure of the maf sensor but I'd no issues. Landrover - turning owners into mechanics since 1948

2014 Orkney grey Freelander SD4 GS.
2004 Zambezi silver Discovery 2 Td5 (Gone)
1963 Surf blue Morris Mini Minor Super de Luxe (my little toy)

Post #413708 23rd Oct 2021 9:35 am
View user's profile Send private message View poster's gallery Reply with quote
jules



Member Since: 13 Dec 2007
Location: The Wilds of Warwickshire
Posts: 4517

United Kingdom 2014 Freelander 2 SD4 SE Auto Firenze Red

It has been said that the oil in the K&N filter can lead to failure of the hot wire in the MAF, especially if the re-oiling of the filter has been over zealous, I imagine.

In a diesel Freelander the K&N offers no benefit - just the hassle of cleaning it and re-oiling.

An OEM quality filter by the likes of Mahle etc is just as good as a branded JLR one and inexpensive enough to make them a no-brainer in my book. Jules

Post #413710 23rd Oct 2021 10:03 am
View user's profile Send private message View poster's gallery Reply with quote
Badger51



Member Since: 01 Mar 2014
Location: Coffs Harbour
Posts: 910

Australia 

Fitted a K&N air filter when I bought mine seven years ago. Cleaned & re-oiled it for the first time just a couple of months ago. Have had no issues whatsoever with the MAF sensor in that time. I have pulled the sensor out to check when having turbo issues & it wasn’t even dirty. (Now Sold). 2008 Freelander 2 (Nazca Sand) SE TD4 Auto. Statutory write off & on WOVR for hail damage but still road legal.
171037Km as of 09/05/22
Superchips Bluefin Flash
Nanocom Evo II (also sold)

Post #413713 23rd Oct 2021 10:28 am
View user's profile Send private message View poster's gallery Reply with quote
merlinj79



Member Since: 13 Aug 2019
Location: San Diego
Posts: 313

United States 2008 LR2 i6 S Auto Tambora Flame

In addition to potential oil issues...

K&N are great filters. They are designed for increased air flow to enhance performance, and they tend to be very good for that.

But they simply don't filter as well as a quality paper filter. My brother-in-law (ex mechanic, now mechanical engineer) uses K&N on his 'Vette for the track, but paper for daily driving.

If you compare used oil samples, you'll probably see a lot more silicates in the oil with a K&N air filter, easy enough to see for yourself.

I would certainly be cautious of K&N if you drive in a dusty/sandy environment.

Post #413717 23rd Oct 2021 12:38 pm
View user's profile Send private message View poster's gallery Reply with quote
janderson41



Member Since: 11 Mar 2012
Location: Howwood Renfrewshire
Posts: 405

Scotland 2010 Freelander 2 TD4 HSE Auto Stornoway Grey

Thanks for all the various answers.
Both for and against are interesting.
Quite open minded. No experience at all about K&N filters.
As I said above always changed paper filters yearly.
checked the MAF and it was spotless. Gave a clean with MAF spray.
Can only keep an eye on it..
Shows the expertise available on this forum.
Thanks again to everybody Jim A
Fl2 HSE 2010 auto
Disco 2Td5 auto 2002 gone
Disci 1 300Tdi auto 1996 gone

Post #413737 24th Oct 2021 12:40 pm
View user's profile Send private message View poster's gallery Reply with quote
MotionInc



Member Since: 17 Jun 2019
Location: North America
Posts: 1278

Canada 2008 LR2 i6 SE Auto Tambora Flame

I use a K & N. Just don't over oil it. What I do, when I clean and oil mine, I put in a paper filter temporarily for a few days, 2 to 3 days. No MAF issues.

Post #413747 24th Oct 2021 4:20 pm
View user's profile Send private message View poster's gallery Post Reply
Post Reply  Back to top
Page 1 of 1
All times are GMT

Jump to  
Previous Topic | Next Topic >
Posting Rules
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum



Site Copyright © 2006-2024 Futuranet Ltd & Martin Lewis
Freel2.com RSS Feed - All Forums


Switch to Mobile site