Pagoda SL Group

W113 Pagoda SL Group => General Discussion => Topic started by: bayleif on May 17, 2005, 15:23:05

Title: Pressure in the coolant tank
Post by: bayleif on May 17, 2005, 15:23:05

Hi All:
I was checking coolant level this morning and I was surprized that when I took the cap off that it had been under pressure. I haven't driven the car in about a week so it was room temp. Is this normal?

Chuck Bartlett
1969 Signal Red 4 Speed

Title: Re: Pressure in the coolant tank
Post by: CarlG on May 17, 2005, 15:29:50

I don't know if it is normal, but mine did exactly the same thing yesterday when I checked it under the same conditions.  The coolant level was a little low, but the tank bottom was covered.

1967 230sl (stick)

Title: Re: Pressure in the coolant tank
Post by: Raymond on May 17, 2005, 16:01:18

Indicates you have good caps.  I'd call it normal.  If it was cold when you added your coolant, or when you last opened the cap, there's probably a bit of pressure just because it isn't near freezing now.

Ray
'68 280SL 4-spd Coupe