I got my 2010 EVO X MR Touring about 2 months ago.
One day, I was checking under the hood and noticed there was no hose running from the coolant expansion tank comparing to other engine bay I found on google image.
I took the car to the dealer and they had the parts guy out and told me it's new design for 2010.
Is it true? Can you guys verify it for me by checking yours? Thanks.


My engine bay, the circle part is what I am talking about:


Random EVO X engine found on google image:

It's just a ~10'' long hose that goes behind the tank and is open.. like an overflow relief hose. It doesn't attach to anything else. You should have one on there, especially since the fitting is there for it. It isn't necessary, but it will prevent antifreeze from getting your engine bay sticky if there's ever any that spurts out that little hole. Tell the dealership to order the hose for you.

wiretap, thanks and that's what I think, too. It's not necessary, but since it should come with the car and I paid for it, so why not have it? Anyone else is missing the hose?

Just got back from the dealer. Had them open the hoods for one 2010 MR and one 2010 MR Touring and both didn't have the hose attached. Then I asked them to open one 2008 GSR hood and there was the hose.

I guess it's really the '10 thing. Just so other 2010 EVO X owners know this too.

thats weird

My 2010 doesn't have it either, I thought I was missing it but guess not. Seems odd though, I might order one from the 2008 since if coolant ever does overflow I don't want it all over the engine bay.

MITSU didnt have enough $$ to put one on.... or the ones with the missing hose was made on a friday and all the workers took off before they could put on the hose.

2010 MR here; just checked, and mine does have one on....

My '10 GSR does. Maybe they wanted to shave a few ounces of the MRs

Get the hose at AutoZone or pep boys
If you are picky like me you can install in the other side a little 1' cone filter (the one for bikes) so you don't have dust in your coolant

Thanks for all the replies. I guess some have it and some don't. Maybe it's a mid 2010 change decided to do .

I challenged the parts guy that I don't want to see dried coolant on top of my bottle. His response was that the cap just releases coolant pressure to the atmosphere directly in the gas form. I couldn't say anything back to him cause I don't see any signs of coolant drips, either. Maybe I haven't driven the car hard enough....

yea you can get the hose from autozone for like a buck a foot

i would think dealer would get the part for you, as you did purchase the car..

but it probably isn't worth the hassle, so grabbing one from auto parts store for cheap might do the job just fine.

Glad I saw this post, I noticed it on my MRT too two days after I got her. no hose. It must be a T thing??

Nah man I have a 2014 gsr and it didn't come with the hose I randomly noticed it today and I too thought what our friend thought is it missing searched Google and many evox have it but spoke with my friend and said same thing it is a hose that isn't attached to anything other than reservoir