Heater Core Delete

[YEOH250SL]

Hello,

Since I do not use the heater in my car, I am deleting my heater core. I plan to just cut off the hose that goes into the firewall and block it with a stopper. I will do the same for the outlet from the heater core. How will this affect the cooling of engine? Is the hose to the heater core a second loop? Does the main coolant flow goes through the heater core? Thanks in advance

[YEOH250SL]

I plan to omit the popular choice of heater core bypass.

[WRe]

Hi,
why do you want to delete your heating? If you turn it off it has the same effect. The heater does not work as a second loop, perhaps in winter when your heating is on or in summer to reduce critical heat in your engine.
Because of overheating I've also tried a bypass but with little success.
...WRe

[YEOH250SL]

WRe,

Here in Malaysia, we do not use the heater at all. And it is common practice here to remove the heater core altogether in imported cars. I have done so in my other Benzes like to 190E and 280GE. So, on the W113, since it is not on a second loop, won't the coolant stop circulating once heater is turned off?

[merrill]

hi,
the short answer to your question is disconnect the heater core and then take some new heater tubing and connect the out put from the head to the in put.

this will help with cooling.   you will now have a tube going over the head from passenger to driver side of the car.

if you search the forums you will find a heater core bypass thread.
basically putting in "t" fittings at both the output and input side of the head and adding heater tubing to connect.
this way the coolant can move freely when the heater is in the "off" position

best

[WRe]

Hi,
attached a coolant flow scheme of our cars (I hope I'am correct). For the coolant flow there is no difference of closing the heater valve or deleting your heater core.
I can tell you from my own experience that expanding the heater core was not one of my most beautiful experiences.
Attached a service information about a "Supplementary by-pass cooling water line" which is independent of your heater core.
...WRe

[YEOH250SL]

Thanks a bunch guys!! The chart is very helpful. I will go with merrill's take and connect it because based on WRe's chart, it should help with cooling. I need to do it because even with the valve closed, I can still feel heat coming in. And once I looked into it, I discover that the core is also dripping as well.

Once again, much appreciated!!