how do i..

23rd April 2006, 16:52

bleed my coolant,i know i have to turn the valve which looks like a tyre dust cap valve but do i do it with the engine on or not?Tell me as if im an idiot.lol.

23rd April 2006, 16:54

make sure your engine is cold never ever do it with the engine warm!!!!!

23rd April 2006, 22:43

i undid the valve whilst it was cold and nuthing came out whatsoever,did it on a flat road...

24th April 2006, 01:31

how i did it, dont know if it was the right way to do it but it worked, was to open the valve, start the engine and leave it running, let the air get out, when the water starts to get near the top of the rad, close the valve!

leave it to warm up, turn off and leave it to cool down, after a while open the value again and get rid of somemore air,whilst its warmish, be careful its not to hot though!

repeat this a few times and it should be okay!

24th April 2006, 02:48

cheers mate

24th April 2006, 15:10

you need to open a few bleed valves from the radiator all the way round to next to the ecu side of the engine. fill the water bottle up, keep going until water is coming out of the bleed valves. once you see water at the 1st one, lock it of and watch the next. keep doing this until all are bleeding water. then you know that there is no air in system. im sure there is 3 bleed valves, on on right top side of radiator, one on top of thermostat housing than needs an allen key to losen it (look at engine cover, its bottom right hand corner area, has a water pipe from radiator going to it) then the 3rd is on pipe next to ecu cover (top left of engine bay) its just like a tyre valve dust cap.

air in system is bad as it heats up straight away and can warp your head and knack the engine, as i nearly did

24th April 2006, 16:51

Thanks alot boz thats helps me loads.With the engine running or....?

24th April 2006, 17:04

engine running, how else does the water pump "pump" the water around!

24th April 2006, 17:29

yep, engine running

24th April 2006, 17:30

you need to get a coke bottle, chop the big bottom off, then fill with water, take cap off and place in radiator neck, just what the haynes manual said lol

24th April 2006, 21:27

Quote:

Originally Posted by dean_vtr

make sure your engine is cold never ever do it with the engine warm!!!!!

why was i told to do this then?!

24th April 2006, 21:37

because your meant to put the coolant in first then undo the valves, i meant don't unscrew the coolant cap or bleed valves when engine is hot unless you want to scald yourself!

24th April 2006, 23:20

ahh i see,gotcha,thanks for everything everyone

25th April 2006, 01:56

Just done it and worked a treat, had shit loads of air come outta the thermostat bleed screw!Coke bottle worked a treat boz.lol.Glad ive done that now,did my head in...Thanks to everyone

17th November 2006, 18:10

this thread is elpfull thanks

22nd January 2008, 11:26

Helpful thread, I'm curious though, when I start my car I hear a really quiet water gushing type noise and can't quite pin where it's coming from, is this related to the radiator? should I be worried at all or is this normal, as I say it is barely noticable but still.

22nd January 2008, 11:42

Sound like you have an airlock - try bleeding the system to see if it sorts it out!

22nd January 2008, 14:39

fuck all that,
just run the engine
let it warm up
bleed valve next to ecu 1st
once thats done do the one on the thermostat housing
next do the rad
then repeat
just keep an eye on coolant level and keep it topped up
no need for pop bottles or turning the engine off. takes 5 mins.