K&N on a Diesel ?

Yetiman · Jun 21st, 2010, 10:36

Hi. I'm sure this has been covered several times before but even using the search option I couldn't find what I was looking for.

What is the general opinion of using a K&N (or similar hi flow) air filter on a Turbo Diesel (a V40 115hp in this case) ?

Thankyou for your time.

Michael

david_940 · Jun 24th, 2010, 18:15

I bought one for my S80 TDI, not sure it's made a different but in the long run it's cheaper

There are some cheap ones on ebay (where I got mine), looks like the bloke buys them from Eurocarparts (with a huge discount, cost me thirty odd pounds) with the auction bidders address as the shipping destination. Still cheaper than buying direct from Euro!

tc · Jun 24th, 2010, 21:56

Anything that offers improved airflow can't be a bad thing, even for a diesel.

Jim314 · Jun 25th, 2010, 15:25

There are no proven benefits of the K&N air filter. Just use the stock set-up.

dcorless · Jun 30th, 2010, 18:01

IMO would not bother. I bought a K & N filter off ebay. Fitted fine but after running for about 1K miles the MAF started to throw up errors. These K & N filters rely on a fine mesh which is covered in a fine oil to trap crap. Mine was very heavily oiled out of the box, and i have a feeling this oil coated the thin wire in my MAF (mass airflow filter) causing the errors.

I very carefully cleaned the MAF and stuck a new volvo filter in - no noticeable difference in performance and no errors.

The car is designed to use stock filters and they are actually pretty darn good at doing their job!

Oh if any of you really want to try the K & N - pm me and i will send you mine to try for a few beer tokens (2003 s60 D5)

RJNEEDHAM · Jun 24th, 2011, 22:22

I fitted one and did notice an improvement. The engine was more responsive and acceleration improved. It flies. Lots of miles and no probs - so far. However I always heed the advice and experience of others and will look out for any negatives.

Clan · Jun 24th, 2011, 22:24

Quote:

Originally Posted by Jim314

There are no proven benefits of the K&N air filter. Just use the stock set-up.

very true especialy on a turbo diesel which has an excess of air anyway ..

Jun 21st, 2010, 10:36	#1
Yetiman Member Last Online: Dec 31st, 2023 19:49 Join Date: Feb 2008 Location: Canvey Island	K&N on a Diesel ? Hi. I'm sure this has been covered several times before but even using the search option I couldn't find what I was looking for. What is the general opinion of using a K&N (or similar hi flow) air filter on a Turbo Diesel (a V40 115hp in this case) ? Thankyou for your time. Michael

Jun 24th, 2011, 22:22	#6
RJNEEDHAM Junior Member Last Online: Jun 24th, 2011 22:27 Join Date: Mar 2009 Location: WOLVERHAMPTON	I fitted one and did notice an improvement. The engine was more responsive and acceleration improved. It flies. Lots of miles and no probs - so far. However I always heed the advice and experience of others and will look out for any negatives. __________________ Driveway Gymnast S80 2.5 TD 2000

Jun 24th, 2010, 18:15	#2
david_940 Volvo Mad Last Online: May 11th, 2024 12:16 Join Date: Dec 2001 Location: Euxton Lancashire	I bought one for my S80 TDI, not sure it's made a different but in the long run it's cheaper There are some cheap ones on ebay (where I got mine), looks like the bloke buys them from Eurocarparts (with a huge discount, cost me thirty odd pounds) with the auction bidders address as the shipping destination. Still cheaper than buying direct from Euro!

Jun 24th, 2010, 21:56	#3
tc VOC Member Last Online: Jan 5th, 2024 15:51 Join Date: Dec 2004 Location: Chorley View Photos By: tc	Anything that offers improved airflow can't be a bad thing, even for a diesel.

Jun 25th, 2010, 15:25	#4
Jim314 Premier Member Last Online: Nov 20th, 2018 01:45 Join Date: Feb 2009 Location: Dallas, Texas	There are no proven benefits of the K&N air filter. Just use the stock set-up.

Jun 30th, 2010, 18:01	#5
dcorless Member Last Online: Nov 3rd, 2013 14:45 Join Date: Nov 2007 Location: bracknell	IMO would not bother. I bought a K & N filter off ebay. Fitted fine but after running for about 1K miles the MAF started to throw up errors. These K & N filters rely on a fine mesh which is covered in a fine oil to trap crap. Mine was very heavily oiled out of the box, and i have a feeling this oil coated the thin wire in my MAF (mass airflow filter) causing the errors. I very carefully cleaned the MAF and stuck a new volvo filter in - no noticeable difference in performance and no errors. The car is designed to use stock filters and they are actually pretty darn good at doing their job! Oh if any of you really want to try the K & N - pm me and i will send you mine to try for a few beer tokens (2003 s60 D5)

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