CSF Radiators - Upgraded Heat Exchanger for 2020+ MKV Supra

[850_Supra]

Exactly as what @a90moe said : both systems are filled with HT12 .

just installed my csf heat exchanger and Koyo radiators . In addition to meth injection.

How much coolant did you need to buy for install?

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[Ghostop]

How much coolant did you need to buy for install?

Bump did you guys ever figure out total coolant amount to purchase?

 

[Batlwagn]

Necro bump! Will be ordering full csf rads, heat exchanger, trans cooler. Need fluid capacities after install. Help please.

 

[Extreme Power House]

Necro bump! Will be ordering full csf rads, heat exchanger, trans cooler. Need fluid capacities after install. Help please.

 

[jopfer]

Necro bump! Will be ordering full csf rads, heat exchanger, trans cooler. Need fluid capacities after install. Help please.

Low temp (heat exchanger) capacity: 4.0 L
High temp (aux radiators + radiator) capacity: 10.5 L
Trans cooler, you will likely need to add 1.5 L of trans oil as thats the capacity of the new cooler +/- the little you lose taking stock one out

I used BMW coolant with HT-12 Frostrox when I did mine

 

[Batlwagn]

Thanks @jopfer

 

[reNeglect]

Hey Guys! What would be a better supplement to the CSF intake manifold, the heat exchange or aux rads?

 

[Supraman40]

I seem to be having a hard time finding any dealer that carries the FROSTOX HT-12 the part number doesn't seem to be coming up. Does anyone know if the BMW one is pretty much the same or what I should get? Additionally does it need a 50/50 mixture? Lastly for the bleeding of the system I saw this in another thread. Not sure if anyone has done it and can confirm its accurate. I've done other BMWs before and it didn't require the engine to be started just the pressing of the pedal to initiate the process:

open bleeder on overflow
fill overflow to top
close bleeder and replace overflow cap
close hood, make sure car is on ground (not on lift or jacks), apply parking brake
put car in diag mode (ht start button 3 times)
turn on low beam lights, and hazard lights
put heater control on max hot, blower on lowest
hold gas pedal down for 10 seconds (dont step on brake)
release gas pedal and start engine
instrument cluster displays message about service function starting
engine will rev up on its own for 11 minutes then return to idle
let engine cool all the way back off and check overflow tank

Would love everyone's thoughts.

Regarding the bleeding system. The process you outlined is for the high temp/ radiator. For the low temp / intake and turbo you step on the gas pedal until it says service made activated, and you don't start the engine.

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