Joined: 11 Oct 2016 Posts: 91 Location: Bristol UK
Posted: Sat Nov 16, 2019 12:37 pm Post subject: Temp warning light
Just out for a drive this morning and noticed the warning light was flashing as I drove off. Stopped for 5mins and it was off for the journey, next start up it’s back on. Any advice from you good people? _________________ '99 C2.1 Tip Vert
‘08 X3 3.0SD
'70 VW Westy Corvair T2
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kurlykris Magny-Cours
Joined: 30 Jun 2014 Posts: 2570 Location: Warwickshire
Posted: Sat Nov 16, 2019 1:03 pm Post subject:
According to my owners manual, the temperature light will flash if the coolant level is too low, or if there is a fault with the engine compartment blower fan _________________ 1998 996.1 C2 3.4 with "Aerokit Cup"
2006 Boxster S sport chrono
2010 Mercedes E350 AMG Sport
Lukec4s Newbie
Joined: 20 Jul 2018 Posts: 47 Location: Watford
Posted: Sat Nov 16, 2019 1:44 pm Post subject:
Have you checked coolant level? _________________ Ferrari 360
996 c4s
Clio 182 track car - it’s fun
Creationblue Trainee
Joined: 11 Oct 2016 Posts: 91 Location: Bristol UK
Posted: Sat Nov 16, 2019 3:09 pm Post subject:
kurlykris wrote:
According to my owners manual, the temperature light will flash if the coolant level is too low, or if there is a fault with the engine compartment blower fan
T’was coolant level. Thanks for taking the effort to reply _________________ '99 C2.1 Tip Vert
‘08 X3 3.0SD
'70 VW Westy Corvair T2
ScoobyDoo555 Barcelona
Joined: 26 Feb 2012 Posts: 1300
Posted: Thu Nov 21, 2019 1:20 pm Post subject:
Just to add to this - I'd also be querying why the coolant was low......
usual suspects are:
expansion tank (hairline crack)
faulty expansion tank cap (common fault)
Leaking radiators..... VERY common with all the crud that collects in the air dams.... (usually means new rads, and while you're there, do the AC condensors)
Mine was down to leaking rads....
Hope this helps
Dan _________________ Porsche 996 Carrera 4
Mods: "new car" magic tree. Pioneer F900bt, Alpine SPG10C2 x 4, JBL GTO 804 8" subs x 2, Shiny new rads & AC! Hartech-rebuilt engine & Sports exhaust
997 C2s discs. She stops quite nicely!
Creationblue Trainee
Joined: 11 Oct 2016 Posts: 91 Location: Bristol UK
Posted: Thu Nov 21, 2019 1:22 pm Post subject:
I have a very slight leak on the OS rad Dan, will change them both next year _________________ '99 C2.1 Tip Vert
‘08 X3 3.0SD
'70 VW Westy Corvair T2
ScoobyDoo555 Barcelona
Joined: 26 Feb 2012 Posts: 1300
Posted: Thu Nov 21, 2019 1:37 pm Post subject:
_________________ Porsche 996 Carrera 4
Mods: "new car" magic tree. Pioneer F900bt, Alpine SPG10C2 x 4, JBL GTO 804 8" subs x 2, Shiny new rads & AC! Hartech-rebuilt engine & Sports exhaust
997 C2s discs. She stops quite nicely!
Bluebird911 Nürburgring
Joined: 29 May 2010 Posts: 461
Posted: Thu Nov 21, 2019 4:07 pm Post subject:
Creationblue wrote:
I have a very slight leak on the OS rad Dan, will change them both next year
Hi Creation,
If I were you I would get the rads changed sooner to make sure your engine is protectively cooled.
When there's a leak in the cooling system, the pressure of the liquid drops and so does the boiling point of the coolant/antifreeze. Cooling systems are pressurised to raise the boiling point of the fluid to provide effective cooling. If the boiling point is lower, the coolant around the cylinder walls and heads will bubble boil at the hot surface, so will not effectively transfer heat to the flowing coolant in these areas which could be damaging.
With the boiling point being lower, you will not be aware of it on your temp gauge as it will show 'normal' temp.
Particularly for high performance engines, it is important the cooling system is kept in the best condition. I also suspect that the cold weather could 'find out' any imperfections in your rads.
Creationblue Trainee
Joined: 11 Oct 2016 Posts: 91 Location: Bristol UK
Posted: Fri Nov 22, 2019 8:25 am Post subject:
Bluebird911 wrote:
Creationblue wrote:
I have a very slight leak on the OS rad Dan, will change them both next year
Hi Creation,
If I were you I would get the rads changed sooner to make sure your engine is protectively cooled.
When there's a leak in the cooling system, the pressure of the liquid drops and so does the boiling point of the coolant/antifreeze. Cooling systems are pressurised to raise the boiling point of the fluid to provide effective cooling. If the boiling point is lower, the coolant around the cylinder walls and heads will bubble boil at the hot surface, so will not effectively transfer heat to the flowing coolant in these areas which could be damaging.
With the boiling point being lower, you will not be aware of it on your temp gauge as it will show 'normal' temp.
Particularly for high performance engines, it is important the cooling system is kept in the best condition. I also suspect that the cold weather could 'find out' any imperfections in your rads.
Thanks for the input, great advise. My only reasoning is that I wont really be using the car now until the spring but will get the job done _________________ '99 C2.1 Tip Vert
‘08 X3 3.0SD
'70 VW Westy Corvair T2
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