Caleb roberts

My S550 w221 has been leaking coolant from a pipe located under my expansion reservoir. The pipe runs into the wheel well of the car on the passenger side. So far it only happens when I park the car after a drive but does not happen everytime. I have also noticed the heater does not seem to blow hot unless I turn it up past 80 degrees now. Not sure what the problem is or where to start, any help or guidance is much appreciated!!

nath_h

I don't have leaking coolant, but have noticed that I need to set my heating temperature very high in order to heat the cabin. In any other car I've ever had, setting it at 71 +/- is fine. In this car though, I need to set it at 78 or so to keep warm. Anyone else have this issue? Not sure if it is an issue, or just a quirk of the car.

DaleB

I had the same issue. Replace your coolant reservoir, they develop cracks. They're not expensive or difficult to replace.

Caleb roberts

my reservoir is only about a year old the leak isn’t coming from my reservoir it’s coming from a pipe that’s leading through the wheel well of the passenger side of my car and there is a hose connected to what looks like an aluminum tube that runs into the well of the car tire and that is where it’s leaking from

Caleb roberts

it’s not a quirk of the car because my heater was kicking *** before whatever happened is happened and I noticed that I had to start setting it up to 76 to get heat then 78 to get heat now I have to go above 80 in order for it to turn the heat on or for the air to be hot because now the air coming out at 76 or 78 is cold air not hot air