Ruf930

Need guidance on how to clean my filter. Thanks in advance....

lcc014

K&N filter sells a kit which includes a dirt solvent and a filter oil for cleaning the filter. The kit comes with detail instruction.

lcc014

What about the roundel which you posted in last June ? We all waiting for you to get a pair. The deal didn't go through or else ??

Here is the post that you did last June: http://forums.e60.net/index.php?showtopic=12994&hl=

dlevi67

The K&N supplied stuff will work best, but if you want a home made recipe:

Shake the filter well to remove some of the dust and the bigger particles.

Put the filter in enough lukewarm water with a drop of mild detergent added to cover the filter (Fairy Liquid dishwashing liquid is ideal, but I don't know if you can find it in the US; otherwise Woolite). Squeeze and shake the filter a little, then leave to stand for at least a couple of hours. All the gunk should drop to the bottom of the container. Remove, rinse and dry thoroughly. At least 12 hours, ideally 24. Careful with using warm air; some filters are glued and don't like being in a constant flow of warm air. The filter must be bone dry for obvious reasons.

Oil lightly with good quality 2-stroke oil or gun maintenance oil. Squeeze excess oil out. Refit.

Above recipe used for years on motocross engines and on a E36 325i with a K&N, but supplied without warranties.

bimmeRC

on the K&N filter upgrade, did you feel any noticeable difference in power or response? Is it worth the upgrade? Thanks for your time.

Ruf930

I'm in Colorado Springs, 7,500 ft above sea level. So I can't tell until I get down in elevations next month. But I have noticed only a slight difference at this altitude.

Ruf930

Yep, the company only wanted to make lot of 500, which would be around 25k (to include set fees, etc..) Wife wasn't up for that.

pinguhk

Yes there is abit more power not much but you can feel it.
Yes it is worth the money.

1 more thing on cleaning. I just clean my fillter and the engine slow down with a waroning light saying over power and would not let me move, so I turned off the engine and waited for about 5 min and started again and it was fine.
I got home and took out the air filter and had a look and there I see that the filter did not have that oil in it so I put more oil into the filter and the engine is fine now.