Hi All,

When I start the car up, STi (MY53), I can hear a bubbling / gurgling / water flowing sort of noise from inside. It gets louder / faster as I rev the car. Sounds like it's behind the centre console.

Is it the air con (which I don't use often), or is it the cooling system water ??

Is it a common thing ?? Are there air bubbles in the water system ??

It's p*ssing me off.

Look forward to your replies.

Cheers,
Graeme.

 

Had the same problem, it's the pipes for the heater (behind the glove box I think) basically the system needs bleeding.

Hope that helps

 

check your coolant level

 

Cheers me dears.

Will have a go at bleeding the system.

I love it on here. It doesn't matter what you ask, someone always has an answer.

Great stuff.

 

Should I have the engine on when bleeding the system, or not ??

Do you bleed it when hot or cold ??

 

Had the same thing about 2 months ago, then me radiator went pop
think it may have had something to do with air in the system

Get it sorted as soon as possible

mick

 

Will do.

Cheers.

 

Havent had to bleed the heater matrix on my Subaru but I've had to do it on other cars.

To bleed the system make sure your coolant level is filled to max level.

If you loosen the outflow hose on your heater matrix then start the car, pull off the hose until water flows out then reconnect the hose and tighten the clip & refill the coolant system you should illiminate the air from the system.

 

The heater matrix is behind the dash thou isnt it?


Fill the system to the max. Take the top of the tank shown on the picture, squeeze the bottom rad hose until the air stops bubbeling from the tank, keep the coolant topped up whist you doing this.

Look at the pictures (not the best) but you get the idea.





Easier doing this with 2 people i found, one to squeeze the rad pipe and the other pouring in the coolant. Depending on when the last change was done, i would be tempted to drop the old stuff and replace it with new. Mobo;e advanced coolant for alluminium engines is £14.99 from halfords.




John

 

Not just advice, a picture as well !! It just gets better.

Cheers, will have a go today.

Thanks.

 

Had exactly this problem with mine after its 3year service, all fluids changed by dealer but a air lock in the heater matrix.

I am told (although could be a load of bull) that this is common due to the heater matrix being slightly higher than the rad, therefore easy to get an airlock on refil.

Took the dealer 2 more attempts to get this fixed but its fine now.

You could always try ringing a local dealer and asking them for their advice on the best/easiest way to do this yourself.