800660 - VA WRX, STI Coolant Overflow Tank
800660 – Subaru VA Coolant Overflow Tank
WRX 2015-2021
WRX STi 2015-2021
Congratulations on your purchase of the COBB Tuning VA WRX Coolant Overflow! The following instructions will assist you through the installation process. Please read them BEFORE beginning the install to familiarize yourself with the steps and tools needed. If you feel you cannot properly perform this installation, we HIGHLY recommend you take the vehicle to a qualified and experienced automotive technician.
Table of Contents
Parts List
Coolant Overflow
Coolant Overflow Cap
Coolant overflow upper bracket
Washer fluid tank adapter
Washer fluid fill hose
Washer fluid fill cap
Trim stud
m6x10mm flanged hex bolt
m6x16mm flanged hex bolt
(2) m6x10mm hex drive flat head screw
Flanged Hex Nut
6mm flat washer
6mm lock washer
7/8 - 5/8 id Rubber Grommet
(2) 6mm silicone vacuum hose
m6 stud with 10mm hex
Tools Needed
Sockets
3/8"
Hand Tools
Wrenches
Disassembly
Park your car in a flat level area and allow it to cool down.
Squeeze the radiator hoses to make sure the coolant system is fully depressurized.
As long as things are cooled down and the radiator hoses easily squeeze and don't feel as though there's pressure, remove the coolant cap.
pull the hose gently out of the coolant overflow tank, most of the fluid should drain back into the tank. If not lift the end of the hose upward to get it to drain back into the radiator.
On the side of the overflow tank that is towards the headlight (not the radiator) you'll notice the end of the tank is underneath a small tab. press this in to release the coolant tank and rotate it counter clockwise to free it from the fan shroud. you can then lift up and remove it from the car.
Set it somewhere safe, but leave it upright. You'll use the coolant later on.
Locate the windshield washer fluid cap. Using a phillips screwdriver slightly turn the trim clip holding it in place, it should lift up slightly.
With it slightly separated fit a trim tool or flat head screwdriver into the clip to pull the inside out slightly. This should make it so you can now remove the lower half of the trim clip.
Grab the fill tube and gently lift upward. It should release from the lower half of the tank.