I will be changing the upper radiator hose, will the cooling system require to be rebled?

Thanks.

 

Just use one of those spill free funnels and you should be good. in the last 3 years I changed my coolant and just recently install my Koyo radiator. Both times all I used was the spill free funnel, turned on the heater and let run for about 10 mins. Never turned the bleeder screw once. Heater has always worked perfect and car never overheated. I think the earlier models had a lot of trouble with bleeding but I don't think the later models (HR's) did, at least I never had.

 

Yeah, the HR's aren't as bad to bleed, but the funnel kit makes it very easy and quick:

 

Thanks guys for the input and response. I'll be replacing it soon. I just noticed a very very small amount getting pass near the full neck. Might as well change the upper house and radiator cap