Rather low water temperature - dangerous ?

[Fast Fred]

Last night I noticed that the indicated water temperature was slightly below the usual 80-85°C, about 75°C

This morning, it took 8 minutes before the temperature reached 60° and after a 20 minute ride, it wasn't still on the usual 80-85, it was somwhere around 70-75°C.

It's the first time I noticed this.

Is it dangerous ? I hope not, since it's the oil temperature that is important.

Can I go full throttle up to 6000rpm with the indicator below 80°C ?

I've got a 2002 4S.

[1999Porsche911]

What is the outside temperature?

[Fast Fred]

What is the outside temperature?

<{POST_SNAPBACK}>

Outside temp was 10°C, so not cold at all.

[1999Porsche911]

Make sure cooland level is correct and properly bled. An air pocket can cause the gauge to read improperly. I doubt you coolant temp is as low as the gauge indicates. You may also try resetting the computer, Many times I have gotton screwy gauge readings and a simple computer reset fixes them.

[Fast Fred]

Make sure cooland level is correct and properly bled. An air pocket can cause the gauge to read improperly.  I doubt you coolant temp is as low as the gauge indicates.  You may also try resetting the computer,  Many times I have gotton screwy gauge readings and a simple computer reset fixes them.

<{POST_SNAPBACK}>

This makes sense. I checked the water level and it's clearly UNDER the minimum level. I wonder how this happens, since the car has got his servicing only 5000 kms ago !?

Can I safely drive to my Porsche-dealer (25 kms) without adding water ? It seems one should fill up with water and coolant mix, but I don't have this (and all shops are closed today and tomorrow).

[1999Porsche911]

I would fill up the coolant resevior and NOT drive to the Porsche dealer. Drive if for a few days and see if the level goes low again. Might have just been a big air pocket that corrected itself.

[ar38070]

You do not need to use a coolant/water mix. Just put in water.