Well for some reason, I top up the over flow bottle and after a few days its empty again.. So I top it up again then the same thing happends.. Also sometimes I check the radiator and sometimes that not filled all the way to the top so I top that up and prob manage to fit 1lt in it.. then maybe a few days later I have to top up the radiator again..
I cant seem to find any leaks anywhere, seems all dry as such... So I dont know how I'm loosing coolant?
i gots the same problem bro.
filling up mine all the time.
then one day it fixes itself?
no major loss or anything? just usuall coolant usage.
wtf ay
well it has to be leaking somewhere. mine was doing the same thing it was leaking from a heater hose connector. easiest way is to take it in and get a pressure test done or to find it yourself. it could be leaking somewhere where you can't see it and its only leaking when its hot because of pressure in system and burning off before it drops onto the ground
My Ride:
vr calais 5ltr (gone to the darkside)
Previous rides:
zj fairlane 351c, nf2 fairlane 302w, ef fairmont str8 6, ef2 falcon str8 6, ef fairmont ghia str8 6
never used to do it, but since I fitting some au thermo fans, it started doing it. I bleed it properly though, even bleed it again...
Radiator dose not seem to have a leak in it, plus I got it repaired a few months ago..
So not sure why its using so much coolant, it dont over heat or nothing...
she probably wont overheat unless it loses to much coolant mine wasnt over heating just kept on using the overflow and sometimes i had to top up the radiator which was brand new at the time. pays to be overly fussy when your looking for it. if it happened to become a bigger leak and i didnt notice was just checking it every now and then. then it could have led to bigger dramas from running to hot.
My Ride:
vr calais 5ltr (gone to the darkside)
Previous rides:
zj fairlane 351c, nf2 fairlane 302w, ef fairmont str8 6, ef2 falcon str8 6, ef fairmont ghia str8 6
yeah I should go get it pressure tested![]()
go steam clean your motor it'll be easier to spot any leaks it'll stick out like dogs balls.. and don't trust ur temp guage if ur coolant is low - temp guage relies on coolant and if u ain't got none ur gonna get unreliable readings
Eight times out of ten this problem is due to a bad pressure cap on the radiator that allows air past the cap seal when she cools down. Next time when she warms up air is forced under pressure into the overflow tank and this forces the coolant out of the tank. This cycle only needs to be repeated half a dozen times before the tank is empty and the radiator is getting low.
So I should try a new radiator cap?
but the cap must be working for the coolant in the overflow to be getting sucked back into the radiator thus why the overflow is always empty...
Read your first post - you say "Also sometimes I check the radiator and sometimes that not filled all the way to the top so I top that up and prob manage to fit 1lt in it.. then maybe a few days later I have to top up the radiator again.."
If the coolant is being sucked back to the radiator then why is the radiator empty?
The $10 new radiator cap is the cheapest fix you will ever get....and if it isn't the problem then it's only $10. But before you buy a new one have a look at the old one - look under the cap, does the rubber seal show any signs of ageing...is there any rust under the cap....how long is it since it's been replaced?
Try new cap first. But i dont think so as usually a dodgy cap will see you overfilling your over flow to a point where it spewsout on the ground and simply empties the raiator.
What your describing is classic signs of a minor leak somwhere that allows the system to depressurise once you stop. This is a problem because it is supposed to hold pressure and as it cools the system will become negative in pressure and suck water back in from the overflow bottle.
The leak can be very super minor to cause this. Somthing like a crappy old hose clamp on your radiator hoses like mine was. The leak was so minute it evaportaed on the hot radiator before i could ever find it. Only as time went on i found the dried coolant on the radiator tank.
If not it could be your inlet manifold gasket, which isnt as bad as it sounds. It can replaced fairly easily.
If it's started leaking since you fitted AU thermo fans, how are you turning the fans on? If you use a temperature probe that's fitted into the radiator alongside your radiator hose, that could be the source of your leak. Apparently you have to apply sealant near the probe to stop leaks.
au fans not hooked up that way, they hooked up to an on/off switch in the cabin.
Just went for a drive and bought a new radiator cap, got home and check the overflow bottle and it was empty check the radiator and that was still full. Put the new radiator cap on, though not yet to drive the car again...
Gee I hope it was just the radiator cap lol..
Though it kinda seems there is pressure in the system so while I'm driving its pushing all the coolant out of the overflow bottle
Nip up all hose clamps including heater tap hose connections, rad hoses etc, if you can, do an oil change and check for seperating fluids in the oil.
Mine had that problem, turns out the heater tap hose was leaking.
Originally Posted by wikky
Had this problem with 2 of my statos. Couldnt spot ANY leaks. After days of searching and replacing hoses on both.
Here is what i did.
1. Dump raidiator fluid.
2. Fill up with system cleaner and use as directed. Have heaters on full blast while this is happening.
3. Flush system cleaner.
4. Fill up with Tectoly stop leak and Techtoly 90 radiator fluid
5. Drive untill the car is hot
6. Fill up the sytem again.
7. Dont redline your car everywhere.
Hope this helps.
47 made with the 185i engine $62,500 new
35 made with the 215i engine $73,500 new
yea just went for another drive after putting on the new radiator cap. and once I got back home the over flow bottle was empty again.. Ill have a proper look over the weekend see if I can find any leaks and try and re-tighten everything up.. geez I hate having problems with my car lol.
Im nearly positive its got to be a leak somwhere, and it maybe thats its your inlet manifold gasket if you cant find it and its leaking into a cylinder. Have you notice even just a little tiny bit of cooloant out the exhaust in the morn when you first turn the key just as it fires.
BAD NEWS!!
I just went to try and sus it out.. I took of the oil cap and there is all brown sticky stuff stuck on the cap and looking into the rocker cover with the cap off, its all light brown milky looking and just looks all ****ed up...
wtf!!
Sorry to hear. Go grab a head gasket kit. Good news for you is that they arnt too hard to do yourself on the 5ltrs. But you stillmay have to get the heads crack tested, or just do the gasket quickly and hope all is well with the heads
is there anyway of telling If I done the heads or the head gasket or do I have to take it to a mechanic for them to tell me what the problem is?
If you go to a mechanic your lookin a $1000 easy. I might be jumping to conclusions here, it might be somthing else yet. Ifyour not goin to do anything yourself, the best thing you can do is get a mech to check it out asap.
If it is heads/head gasket related a cheap nasty temp fix is to put some chemiweld in to temp repair the head but its not good stuff for your engine as a whole as it can block things its not meant to either. But its cheap if you tight for cash