How to Flush Radiator on Sti

STIFun · 07-30-2007, 08:26 PM

Can somebody post some pictures of how to remove the plugs for the radiator as I just finished my 30K fluid change and everything went well. Except could not find how to drain the anti-freeze.

Please Help.

STIFun · 07-30-2007, 09:00 PM

Please if anybody knows and can point me in the right direction I would appreciate it. Doing all the fluid changes before my upcoming tune for safety and maybe better numbers.

AnorexicSTI · 07-30-2007, 09:09 PM

It's a plastic "bow tie" looking knob on the lower passenger side (right side) of the car. It can be removed with your fingers. There are 2 levels of removal... u can loosen and let it drip out... or remove completely and in combination with removing the fill cap, it will GUSH out.

STIFun · 07-30-2007, 09:39 PM

Well it sounds easy enough but does anybody have a DIY guide or some pictures as I was under the car and can't seem to find the bow tie looking plug. Where are they located by as I heard there are two also how do you remove overflow tank.

STIFun · 07-31-2007, 08:53 AM

Morning bump really need some Pictures or specific location where plugs are located for example by oil filter.

STIFun · 07-31-2007, 11:51 AM

Mid Afternoon BUMP still need help or DIY

wrxridah · 07-31-2007, 11:59 AM

It's actually really easy to locate. Looking from the hood, look straight down on the passenger side and you'll see the bow knob. You just remove the undercover from the bottom of the car, turn the knob, and it will drain. Just be sure to remove the radiator cap (not the one on the actually radiator). You will need a funnel or something to help direct the fluid. Otherwise, it will splash on the subframe. So I don't have any pics, but I just did my fluid and thats how I did it.

STIFun · 07-31-2007, 12:07 PM

Thanks will try this so which radiator cap are you talking about if not the one on radiator then where is this cap.

Inertia · 07-31-2007, 02:10 PM

um if you cant find the other cap you shouldnt be changing coolant.

STIFun · 07-31-2007, 03:35 PM

Well I just changed my fluid thanks for telling me where the bow tie plug was. Drained the radiator for a good 10minutes then flushed the system with 2 gallons of distilled water. Finally droped the car from the jack stands then filled radiator very slowly to prevent air bubbles. Then once radiator was full started the car with both caps open burped the car and let it idle then held 1.5 to 2K rpm then shut off car checked levels and put all caps back on.

Thanks Guy's

ezsleeper · 11-28-2007, 02:35 PM

any tips on how to twist that bowtie looking that. mines being a pita

flytojungho · 11-28-2007, 02:49 PM

do you fill coolant on both openings? when you drain the oil from the bottom, does the top coolant drain also?

***Datadatum*** · 11-28-2007, 03:12 PM

Is this what you are looking for?

STiSkyHigh · 11-29-2007, 02:52 PM

Quote:

Originally Posted by Datadatum

Is this what you are looking for?

That was useful for me, thank you.

NewShockerGuy · 12-01-2007, 07:27 AM

So I changed my upper radiator pipe... Doing so I lost fluid, once I filled it back up I was at the FULL line via the overflow tank...

Now looking at it I am BELOW the low line...

What is going on?

Which cap do I pour fluid into? The one near the intercooler or the one that is on the radiator itself or do I pour it in the overflow tank?

Any help in the next couple would be great, I have to go to work... :-(

Thanks,
-Nigel

07-30-2007, 08:26 PM	#1
STIFun Professional STI Racer Car: 05 Subaru Sti Fav Mod: Defi triple pod guages Location: Texas Posts: 691 Join Date: Nov 2006 Trader Rating: (0)	How to Flush Radiator on Sti Can somebody post some pictures of how to remove the plugs for the radiator as I just finished my 30K fluid change and everything went well. Except could not find how to drain the anti-freeze. Please Help. This ad is not endorsed by this member. Please register or login to hide this ad.

07-30-2007, 09:00 PM	#2
STIFun Professional STI Racer Car: 05 Subaru Sti Fav Mod: Defi triple pod guages Location: Texas Posts: 691 Join Date: Nov 2006 Trader Rating: (0)	Re: How to Flush Radiator on Sti Please if anybody knows and can point me in the right direction I would appreciate it. Doing all the fluid changes before my upcoming tune for safety and maybe better numbers.

07-30-2007, 09:09 PM	#3
AnorexicSTI Spec C Club Car: 05 WRX STI - Spec A Fav Mod: Starving my STI Location: Lightweightville, Canada Posts: 1,740 Join Date: Sep 2006 Trader Rating: (12)	Re: How to Flush Radiator on Sti It's a plastic "bow tie" looking knob on the lower passenger side (right side) of the car. It can be removed with your fingers. There are 2 levels of removal... u can loosen and let it drip out... or remove completely and in combination with removing the fill cap, it will GUSH out.

07-30-2007, 09:39 PM	#4
STIFun Professional STI Racer Car: 05 Subaru Sti Fav Mod: Defi triple pod guages Location: Texas Posts: 691 Join Date: Nov 2006 Trader Rating: (0)	Re: How to Flush Radiator on Sti Well it sounds easy enough but does anybody have a DIY guide or some pictures as I was under the car and can't seem to find the bow tie looking plug. Where are they located by as I heard there are two also how do you remove overflow tank.

07-31-2007, 08:53 AM	#5
STIFun Professional STI Racer Car: 05 Subaru Sti Fav Mod: Defi triple pod guages Location: Texas Posts: 691 Join Date: Nov 2006 Trader Rating: (0)	Re: How to Flush Radiator on Sti Morning bump really need some Pictures or specific location where plugs are located for example by oil filter.

07-31-2007, 11:51 AM	#6
STIFun Professional STI Racer Car: 05 Subaru Sti Fav Mod: Defi triple pod guages Location: Texas Posts: 691 Join Date: Nov 2006 Trader Rating: (0)	Re: How to Flush Radiator on Sti Mid Afternoon BUMP still need help or DIY

07-31-2007, 11:59 AM	#7
wrxridah Junior STI Driver Car: 05 OBP STi Fav Mod: AP Location: Portland, OR Posts: 58 Join Date: Sep 2006 Trader Rating: (0)	Re: How to Flush Radiator on Sti It's actually really easy to locate. Looking from the hood, look straight down on the passenger side and you'll see the bow knob. You just remove the undercover from the bottom of the car, turn the knob, and it will drain. Just be sure to remove the radiator cap (not the one on the actually radiator). You will need a funnel or something to help direct the fluid. Otherwise, it will splash on the subframe. So I don't have any pics, but I just did my fluid and thats how I did it.

07-31-2007, 12:07 PM	#8
STIFun Professional STI Racer Car: 05 Subaru Sti Fav Mod: Defi triple pod guages Location: Texas Posts: 691 Join Date: Nov 2006 Trader Rating: (0)	Re: How to Flush Radiator on Sti Thanks will try this so which radiator cap are you talking about if not the one on radiator then where is this cap.

07-31-2007, 02:10 PM	#9
Inertia Senior STI Driver Car: 06 STi Fav Mod: Your Girlfriend Ridin Shotgun Location: Denver, CO Posts: 342 Join Date: Jul 2006 Trader Rating: (0)	Re: How to Flush Radiator on Sti um if you cant find the other cap you shouldnt be changing coolant.

07-31-2007, 03:35 PM	#10
STIFun Professional STI Racer Car: 05 Subaru Sti Fav Mod: Defi triple pod guages Location: Texas Posts: 691 Join Date: Nov 2006 Trader Rating: (0)	Re: How to Flush Radiator on Sti Well I just changed my fluid thanks for telling me where the bow tie plug was. Drained the radiator for a good 10minutes then flushed the system with 2 gallons of distilled water. Finally droped the car from the jack stands then filled radiator very slowly to prevent air bubbles. Then once radiator was full started the car with both caps open burped the car and let it idle then held 1.5 to 2K rpm then shut off car checked levels and put all caps back on. Thanks Guy's

11-28-2007, 02:35 PM	#11
ezsleeper Junior STI Driver Car: 05 WRB Sti Fav Mod: Stage 2 Location: San Diego, California Posts: 74 Join Date: Aug 2007 Trader Rating: (0)	Re: How to Flush Radiator on Sti any tips on how to twist that bowtie looking that. mines being a pita

11-28-2007, 02:49 PM	#12
flytojungho Spec C Club Car: 06 STI Fav Mod: Prodrive oval tip Location: carmel indiana Posts: 1,256 Join Date: Mar 2005 Trader Rating: (0)	Re: How to Flush Radiator on Sti do you fill coolant on both openings? when you drain the oil from the bottom, does the top coolant drain also?

12-01-2007, 07:27 AM	#15
NewShockerGuy The Next Petter Solberg Car: 05' STI Fav Mod: Defi gauges, or TXS TBE or JDM sidemarkers...arg! Location: FairFax VA Posts: 928 Join Date: Nov 2004 Trader Rating: (3)	Re: How to Flush Radiator on Sti So I changed my upper radiator pipe... Doing so I lost fluid, once I filled it back up I was at the FULL line via the overflow tank... Now looking at it I am BELOW the low line... What is going on? Which cap do I pour fluid into? The one near the intercooler or the one that is on the radiator itself or do I pour it in the overflow tank? Any help in the next couple would be great, I have to go to work... :-( Thanks, -Nigel This ad is not endorsed by this member. Please register or login to hide this ad.