When changing the coolant should the engine be hot or cold?
Cheers
James
#2: Re: Changing coolant Author: Seabook, Posted: Thu Sep 15, 2011 6:04 am ---- i changed mine when it was cold. and never open the coolant cap when it is hot!
#3: Re: Changing coolant Author: jamesderby, Location: Derby (City)Posted: Thu Sep 15, 2011 6:09 am ---- Cheers for that
#4: Re: Changing coolant Author: E5GDM, Location: EssexPosted: Thu Sep 15, 2011 6:42 am ---- To drain all your old coolant out you need to get the engine warm enough to get the thermostat open, then drain from the bottom hose & take the cap off. Don't forget to turn your heater controls to hot.
Just a quick question, I've just checked the coolant in the car now and its clear. It feels like its got something in it and its not water. Never seen clear coolant before.
#6: Re: Changing coolant Author: E5GDM, Location: EssexPosted: Thu Sep 15, 2011 6:57 am ---- If in doubt change it. Or at least get the specific gravity checked to know it'll do it's job in the winter.
#7: Re: Changing coolant Author: jamesderby, Location: Derby (City)Posted: Thu Sep 15, 2011 7:00 am ---- Yeah think ill just change it. I've bought the stuff already anyway.
#8: Re: Changing coolant Author: jamesderby, Location: Derby (City)Posted: Thu Sep 15, 2011 10:11 am ---- Well it's all changed now. Didn't have any problems. Bled the system ok. The temp seems a little bit more stable now do that's good. When sat in traffic the temp goes upto about 95-98 then the fan kicks in. When driving it sty at 80 degrees. Is that normal. Oh its the gti 138 if that makes a difference.
Cheers
#9: Re: Changing coolant Author: MrBSI, Location: What's it to you? ? ?Posted: Thu Sep 15, 2011 10:27 am ----
jamesderby wrote:
Cheers,
Just a quick question, I've just checked the coolant in the car now and its clear. It feels like its got something in it and its not water. Never seen clear coolant before.
Peugeot / Citroen have been using that clear OAT type coolant for years, sounds like it was still on the original factory fill of coolant.
#10: Re: Changing coolant Author: jamesderby, Location: Derby (City)Posted: Thu Sep 15, 2011 10:44 am ---- Ah that explains it then. Well thought that now it has a colour to it I might be able to see the level but still not a chance lol
#11: Re: Changing coolant Author: Edward, Location: In the garagePosted: Thu Sep 15, 2011 12:12 pm ----
E5GDM wrote:
To drain all your old coolant out you need to get the engine warm enough to get the thermostat open, then drain from the bottom hose & take the cap off. Don't forget to turn your heater controls to hot.
As soon as the coolant is away from the thermostat it will shut!
You don't drain coolant from a hot engine. Thermostat is in the top hose. As soon as the bottom hose is removed or the drain plug opened the coolant will flow from the reservoir through the system and out the lowest point - all except the coolant in the bottom of the block.
To flush all the old coolant out you need to run a hose though the system.
To drain all your old coolant out you need to get the engine warm enough to get the thermostat open, then drain from the bottom hose & take the cap off. Don't forget to turn your heater controls to hot.
As soon as the coolant is away from the thermostat it will shut!
You don't drain coolant from a hot engine. Thermostat is in the top hose. As soon as the bottom hose is removed or the drain plug opened the coolant will flow from the reservoir through the system and out the lowest point - all except the coolant in the bottom of the block.
To flush all the old coolant out you need to run a hose though the system.
i did exactly what he said last month and it is fine.
To drain all your old coolant out you need to get the engine warm enough to get the thermostat open, then drain from the bottom hose & take the cap off. Don't forget to turn your heater controls to hot.
As soon as the coolant is away from the thermostat it will shut!
You don't drain coolant from a hot engine. Thermostat is in the top hose. As soon as the bottom hose is removed or the drain plug opened the coolant will flow from the reservoir through the system and out the lowest point - all except the coolant in the bottom of the block.
To flush all the old coolant out you need to run a hose though the system.
i did exactly what he said last month and it is fine.
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