e350 running to cold
Thread Starter
Newbie
Joined: Apr 2017
Posts: 7
Likes: 0
2010 E350 sports
e350 running to cold
I recently had to change my upper radiator hose do to the overflow hose hanging and getting cut by fan. I put the new hose on and topped off with fluid that I purchased from MB and was fine for a day. Yesterday I get an engine light and the code from my reader says the thermostat is stuck open. I ordered a new thermostat but my question is. Do I need to bleed the system, could not bleeding it after the change of the hose cause this code? Also, anyone know of how to bleed the system in a 2010 E350 4dr base?
MBWorld Fanatic!
Joined: Jun 2013
Posts: 1,900
Likes: 210
From: Sacramento , CA
2010 e550 p2
I ordered my thermostat on Friday
as i have this problem too.
You dont have to bleed the coolant , some of it you will lose when disconnecting the hose from thermostat , but at the end of replacement you can just top off whatever amount you need. At least that what im gonna do once i receive mine.
as i have this problem too.
You dont have to bleed the coolant , some of it you will lose when disconnecting the hose from thermostat , but at the end of replacement you can just top off whatever amount you need. At least that what im gonna do once i receive mine.
MBWorld Fanatic!
Joined: Jun 2013
Posts: 1,900
Likes: 210
From: Sacramento , CA
2010 e550 p2
I been driving like this for almost a week now.
waiting for my new part to come..but these holidays dont make it any faster.
it stays around 80... 75-80 sometimes it does go to 85ish.
waiting for my new part to come..but these holidays dont make it any faster.
it stays around 80... 75-80 sometimes it does go to 85ish.
MBWorld Fanatic!
Joined: Feb 2014
Posts: 6,190
Likes: 1,550
From: MA
2008 E350 4Matic, 2011 E350 4matic
Wahler is the OEM maker of the thermostat and it's pretty common that they fail open. I think I got mine on Amazon. Didn't need to bleed the system, you lose a little coolant when you swap it out, but I just topped it off and it was fine. While you're doing the thermostat, check the two pulleys and tensioner for play, those are also well known to go too and you have to take off one of the pulleys to replace the thermostat.
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Thread Starter
Newbie
Joined: Apr 2017
Posts: 7
Likes: 0
2010 E350 sports
I recently had to change my upper radiator hose do to the overflow hose hanging and getting cut by fan. I put the new hose on and topped off with fluid that I purchased from MB and was fine for a day. Yesterday I get an engine light and the code from my reader says the thermostat is stuck open. I ordered a new thermostat but my question is. Do I need to bleed the system, could not bleeding it after the change of the hose cause this code? Also, anyone know of how to bleed the system in a 2010 E350 4dr base?
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