R56 N18 Coolant bleeder screw
#1
N18 Coolant bleeder screw
I have to fill my coolant in my 2012 Coupe S R58 with the N18. There is no bleeder screw. Below is a picture of the bleeder screw location from my donor car engine (2013 Roadster R59 JCW) identifying its location on the thermostat housing.
Now a picture from my 2012 there is some sort of sensor in that location.
Without tearing everything apart I looked all over and couldn't find it. Anyone know what the deal is?
Now a picture from my 2012 there is some sort of sensor in that location.
Without tearing everything apart I looked all over and couldn't find it. Anyone know what the deal is?
#2
I can't find a bleeder mentioned in the TIS for the N18 at all.
The coolant fill & vacuum bleed procedure lists some cars as requiring manual bleeding, but the N14 and N18 aren't listed.
The RWD variant, the N13, is listed, and has a bleeder on the top of the expansion tank, but neither Mini variant do.
The coolant fill & vacuum bleed procedure lists some cars as requiring manual bleeding, but the N14 and N18 aren't listed.
The RWD variant, the N13, is listed, and has a bleeder on the top of the expansion tank, but neither Mini variant do.
Last edited by Northern; 09-03-2024 at 05:55 AM.
#4
Should be right next to that sensor, but looks like it might be under the fuel pump.
https://assets.ecstuning.com/product...8832_x800.webp
One of the best investments I made was a vacuum coolant fill tool.
https://assets.ecstuning.com/product...8832_x800.webp
One of the best investments I made was a vacuum coolant fill tool.
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ECSTuning (09-04-2024)
#5
#6
The first time i used the vacuum tool, it took me longer to get everything set up than it actually took to fill the cooling system. It was an amazing experience.
#7
Of no less importance than solidly filling the coolant system is the vacuum test, especially after doing component replacement, such as the stupid water-pipe/thermostat assembly. Pull a vacuum on the empty coolant system and watch to see if the lower radiator hose remains collapsed for more than a few minutes. If the hose stays flattened, you know that all of the gaskets and o-rings are in good shape and you will have no leaks.
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