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 Posted: Thu Sep 15, 2011 6:02 am |
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Joined: Aug 20, 2011
Posts: 17
Trade Rating: 0
Location: Derby (City)
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Hi,
When changing the coolant should the engine be hot or cold?
Cheers
James
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Posted: Thu Sep 15, 2011 6:04 am |
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Joined: Feb 08, 2010
Posts: 10151
Trade Rating: +12
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i changed mine when it was cold. and never open the coolant cap when it is hot!
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Posted: Thu Sep 15, 2011 6:09 am |
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Joined: Aug 20, 2011
Posts: 17
Trade Rating: 0
Location: Derby (City)
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Cheers for that 
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Posted: Thu Sep 15, 2011 6:42 am |
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Joined: Feb 07, 2010
Posts: 4455
Trade Rating: +1
Location: Essex
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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.
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Posted: Thu Sep 15, 2011 6:46 am |
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Joined: Aug 20, 2011
Posts: 17
Trade Rating: 0
Location: Derby (City)
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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.
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Posted: Thu Sep 15, 2011 6:57 am |
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Joined: Feb 07, 2010
Posts: 4455
Trade Rating: +1
Location: Essex
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If in doubt change it. Or at least get the specific gravity checked to know it'll do it's job in the winter.
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Posted: Thu Sep 15, 2011 7:00 am |
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Joined: Aug 20, 2011
Posts: 17
Trade Rating: 0
Location: Derby (City)
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Yeah think ill just change it. I've bought the stuff already anyway.
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Posted: Thu Sep 15, 2011 10:11 am |
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Joined: Aug 20, 2011
Posts: 17
Trade Rating: 0
Location: Derby (City)
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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
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Posted: Thu Sep 15, 2011 10:27 am |
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Joined: Nov 27, 2010
Posts: 11519
Trade Rating: +10
Location: What's it to you? ? ?
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| 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.
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Posted: Thu Sep 15, 2011 10:44 am |
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Joined: Aug 20, 2011
Posts: 17
Trade Rating: 0
Location: Derby (City)
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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
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Posted: Thu Sep 15, 2011 12:12 pm |
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Joined: Feb 08, 2010
Posts: 7045
Trade Rating: +5
Location: In the garage
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| 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.
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| 2001 GTi 138, Bilstein Sprint dampers, H&R springs, 21mm Peugeot Sport torsion bars, 22mm rear ARB, Peugeot Sport Group A wishbones, 283mm discs, Goodridge stainless hoses, Maniflow 304 grade 4-2-1 2.5" manifold and system, 200 cell cat, Richard Longman head, 45mm Jenvey throttle bodies, 9.5mm TB spacers, 90mm air horns, Jenvey throttle linkage, Jenvey fuel rail, Aeromotive and Goodridge fuel fittings and braided hose, ITG sausage filter, Radtec custom radiator, Piper Ultimate Road cams, Piper vernier pulleys, Omex 600 ECU. Saxo electric PAS pump, Vibra Technics engine mounts. Samco coolant hoses, TTV steel flywheel, 4.76 final drive ratio, 307 CC 180 ratios. 2019 BMW 530i. 2017 Mercedes C300 convertible. | |
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Posted: Thu Sep 15, 2011 12:19 pm |
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Joined: Feb 08, 2010
Posts: 10151
Trade Rating: +12
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| Edward wrote: |
| 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. |
i did exactly what he said last month and it is fine.
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Posted: Thu Sep 15, 2011 12:24 pm |
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Joined: Feb 07, 2010
Posts: 13077
Trade Rating: +65
Location: England
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| Seabook wrote: |
| Edward wrote: |
| 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. |
i did exactly what he said last month and it is fine. |
Except I did mine about 3 months ago
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