My G is overheating. There is a buildup of anti freeze at the cap and other side of hose. I filled overflow tank with water but I'm worried it's something that needs attention. Any ideas? Could the cap be bad? Only have 30k miles

 

on my g37 it would leak from that hose all the time. i changed the clamp and it seemed to fix the problem. but mine never overheated. i would check that your fans are working and it might be time to change your thermostat. but what are the symptoms. does it overheat while driving or only at a stop? maybe water pump(less likely)? what year is your car?

 

I noticed the temp gauge was at the point before full H. This never happened in my 2012. I noticed when parking that the fans were on full even after a short trip. That's what alerted me, then the green garage floor. I filled the overflow tank with a lot of water & I made it to work this morning without the temp needle passing the middle.
I'm going to try replacing the clamps. Hopefully the cap is not faulty.

 

Pull off the hose, give a good cleaning on the contact area, replace the clamp

 

Check your rad cap

 

What am I looking for?

 

i guess if it is remotely possible that the cap is failing just get a new one. they are like 10 dollars. then keep a close eye on the area and make sure no coolant is leaking. if it is it will be easier to find where the leak is coming from once you clean it all off.

 

If you find multiple cap options, go for the highest pressure rating. I think the stock cap is 1.3 bars. FYI, one bar is 14.5 psi.

 

Infiniti coolant should be blue...

Anyone service your vehicle lately?

 

Are you positive? Always been serviced at the same dealer but never had a flush as I only have 30k miles.

 

Yes, I'm positive that the factory coolant is blue.

 

Factory coolant is blue like Victory said that’s for sure! That’s All I use

 

I used this one

It’s green and looks the same as the coolant leaking out of Geezer’s hoses. Anyway i had a leak from those hoses so my mechanic(not dealer but used oem coolant) changed the radiator hoses and thermostat. I wasnt experiencing overheating but it was definitely leaking from my original hoses.

I’ve read somewhere here that coolant is either green or blue.

 

I changed my rad cap along with fluid to bmw rad fluid it comes concentrated so you Can mix the percentages the way you want