since i got my wrx the temp gauge got hotter and hotter but last nite it went to its all time high to just under red i checked the water bottle by the rad and it was ok but looked at the other coolant bottle and the water inside it was a rusty colour ive only done 118 miles since ive bought it last week ive head the oil for mayo but there was none looked at the exhaust or any excess steam but it seemed ok

Sounds like the Thermostat might have gone.

Thermostat or trapped air in the hoses. Let it go cold, open up the top reservoir and squeeze some of the hoses to see if any air bubbles up.

ive bought a cool running thermostat

looked at the enigne on sunday and the expansion tank water was a rusty colour i guess thats not good

Check on your fingers for rust particles,i thought my system was the same and it was the orange OAT coolant,nice in the bottle,but looks rusty or if drips onto any surface again rusty orange.....................not the best of colours imo...

 

 

Only a thought regarding rust.

been told it could be headgasket

If its recently had the system drained to replace the thermostat it's more likely an air lock.

If there's no mayo in the water it's doubtful it's the head gasket.

The scoob is notorious for getting airlocks, so I reckon this is the most likley cause.

Drain and refill the system and I reckon that will cure it.

Have read of this thread, It may help.

http://uk.subaruownersclub.com/forums/topic/4068-newbie-needs-advice/?hl=lock#entry21442

ive not replaced it yet ive bought one and awaiting for it to arrive

Stick your nose in the overflow and smell for exhaust/petrol smell. Also check the overflow for bubbles while the car is running. That may indicate hg. There's also a sniff test a garage can do for you to detect hydro carbons.

what one is the overflow the one by the rad or the other near the intercooler

The plastic bottle with flip lid is overflow/expansion tank.

The rust could be where it's been filled with to much water to coolant ratio and has started to rust the inside , thermostat might not be opening or air lock ,they are absolute !Removed! for air locks , but I have a good way of getting the air out :-)

will do that at the weekend

 

how do you get the air lock out nevell

did you get this from a dealer? take it back for them to fix ?

 

yeah if the coolant is old it looks like rusty water

i want to fix it so i know its done

whip thermostat out, boil kettle

 

put it in a jug, pour water over it and if it doesnt spring open then its knackered

yeah thats what my dad said lol but ive got one on its way but been waiting a while now i bought it on the 7th from scoobyworld

I'd get a hydrocarbon sniff test done at a different reputable garage to rule out combustion gasses in the coolant before working on it yourself , as they might say that you voided the warranty .

if the head gaskets have gone it's going to cost a fair bit and the garage should be paying for it so soon after purchase

STi lump time!

 

 

£££ lol

i was going to get the rac out and let them check it out

i was going to get the rac out and let them check it out

If your not paying for it. Why not.

then if they find a problem ive got it written down

Is this car on eBay mate ?,