Where is the engine coolant drain bolt?!

[cm5157]

I've been going crazy the past couple days trying to do the simple task of a complete coolant change on my 2016 1.5T sedan. I nearly boiled my coolant the last track day and thus need to replace it. I found the petcock and was able to drain the radiator, but for the life of me I can't fine the drain bolt for the engine. I've found this image online but I have no idea where this picture even is.


Any ideas?

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[ApexEight]

I've been going crazy the past couple days trying to do the simple task of a complete coolant change on my 2016 1.5T sedan. I nearly boiled my coolant the last track day and thus need to replace it. I found the petcock and was able to drain the radiator, but for the life of me I can't fine the drain bolt for the engine. I've found this image online but I have no idea where this picture even is.


Any ideas?

That picture looks like it's right next to the cat based on the heat shield and what appears to be an 02 sensor.

 

[cm5157]

That picture looks like it's right next to the cat based on the heat shield and what appears to be an 02 sensor.

I've looked there but haven't been able to find anything that looks conclusively like the picture. I'm a little wary of unbolting without knowing for sure it's the right one. A picture if anyone know exactly would be great!

 

[cm5157]

To all future people: I finally found the elusive coolant drain bolt, once thought to be a thing of legend.

#14 on the diagram. Now to find an appropriate sized crush washer.

 

[Dirty_panda]

To all future people: I finally found the elusive coolant drain bolt, once thought to be a thing of legend.

#14 on the diagram. Now to find an appropriate sized crush washer.

Have you found a suitable washer for the drain bolt? Can you include a picture of where the bolt is located just so I’m 100% confident.

 

[Christianjwong]

Couldn't you just run distilled water through the system a couple of times to get all the coolant out? So you wouldn't have to go through all that trouble of finding #14?

 

[hobby-man]

Couldn't you just run distilled water through the system a couple of times to get all the coolant out? So you wouldn't have to go through all that trouble of finding #14?

Yes but then you'd have residual water in the system so when you fill with premixed coolant it will be too dilute. Meaning you then need to flush extra coolant through multiple times. Easier to do the bolt, or not at all and just drain/fill from the rad only.

 

[Christianjwong]

Yes but then you'd have residual water in the system so when you fill with premixed coolant it will be too dilute. Meaning you then need to flush extra coolant through multiple times. Easier to do the bolt, or not at all and just drain/fill from the rad only.

Gotchya that makes sense

 

[fuzzydang]

I've been going crazy the past couple days trying to do the simple task of a complete coolant change on my 2016 1.5T sedan. I nearly boiled my coolant the last track day and thus need to replace it. I found the petcock and was able to drain the radiator, but for the life of me I can't fine the drain bolt for the engine. I've found this image online but I have no idea where this picture even is.


Any ideas?

For the life of me, I cannot reach the petcock for the radiator for my 1.5T engine. What did you remove to get to it?

thanks

 

[Green4Gulf]

The washer is #19 in the picture. It's the 28mm sealing washer. I ordered 3 from dreamshop.honda.com. I'm picking them up at my local dealership when they arrive.