Coolant
Author
Discussion

chrispmartha

Original Poster:

23,489 posts

158 months

Thursday 10th April 2014
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The Coolant light flashed up on my 57 Cayman S this morning, am I OK to use non porsche over the counter coolant or is that a big no no?

MogulBoy

3,066 posts

252 months

Thursday 10th April 2014
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Any idea where you are losing it from, or how much you might have lost in total to trigger the warning light?

You could start by adding a litre of "water" as the Porsche coolant needs to be diluted 1-to-1 with "water". Some say you should use distilled water (widely available) but my local OPC assured me that they just use the local tap water (perhaps they saw $ signs and will be looking forward to making some more cash out of me in due course)!

I would be inclined to get some Porsche branded coolant to avoid the risk of an 'incompatible mix' but I would admit that my position on this is largely based on paranoia and not the chemistry.

On my 12 yr old, I recently had a leak and my OPC supplied me with the latest Porsche pink stuff which I added to the green that was in there (for gawd knows how long).

chrispmartha

Original Poster:

23,489 posts

158 months

Thursday 10th April 2014
quotequote all
MogulBoy said:
Any idea where you are losing it from, or how much you might have lost in total to trigger the warning light?

You could start by adding a litre of "water" as the Porsche coolant needs to be diluted 1-to-1 with "water". Some say you should use distilled water (widely available) but my local OPC assured me that they just use the local tap water (perhaps they saw $ signs and will be looking forward to making some more cash out of me in due course)!

I would be inclined to get some Porsche branded coolant to avoid the risk of an 'incompatible mix' but I would admit that my position on this is largely based on paranoia and not the chemistry.

On my 12 yr old, I recently had a leak and my OPC supplied me with the latest Porsche pink stuff which I added to the green that was in there (for gawd knows how long).
To be honest it flashed on after about 2 minutes of driving then went off straight away, I'm going to check it at lunch and see if it actually is low, if it is ill top it up with water and order some porsche stuff online.

Does the engine use coolant like oil, as in it will use it over time or if its low is it always a sign of something leaking?

as you can tell, i aint a mechanic :-)

MogulBoy

3,066 posts

252 months

Thursday 10th April 2014
quotequote all
I never had to add coolant in 12 years (until this year) so there will invariably be an issue somewhere but I have no idea how much you would need to lose to trigger a warning light.

Sources of the leak could include the coolant cap as it contains a presure relief valve that can fail. This is cheap and easy DIY fix so often the first thing to look at. Just remember to put the new cap on straight and tight as you can.

Leaks in radiators caused by corrosion and/or impacts will generally will require replacement of the rads.

Of course, it's a pressurised system so there is always the potential that a leak could emerge anywhere including the expansion tank to which the coolant cap is screwed onto to more 'invisible' areas such as cylinder head gaskets.

You should of course keep a Hawk's eye on the level and your water temps until the source of the leak is solved - esp. if you get stuck in traffic as that is when you might find that temps rise and a dangerous leak could follow..

griffter

4,143 posts

284 months

Thursday 10th April 2014
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There are two types of coolant. You need to use the right kind. I bought mine online from design911.

chrispmartha

Original Poster:

23,489 posts

158 months

Thursday 10th April 2014
quotequote all
Could it be the actual sensor?

only reason I ask is, I've had a similar thing with the oil level, it flashed up check oil level, went off I checked oil level when it was cold and it was fine and Ive never had the warning come on again?

chrispmartha

Original Poster:

23,489 posts

158 months

Thursday 10th April 2014
quotequote all
Ive just topped it up with some water it took about 1 litre to get it back up to just below the maximum level, ill see how it goes.

Klippie

3,608 posts

174 months

Thursday 10th April 2014
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My 2009 987.2 Cayman has been off the road for the winter and I recently started it up and run it up to temp till the fans came on it then proceeded to piss out water from somewhere around the front end of the engine it was dripping from the under tray , when cold it took exactly 1L of water to bring it between the max and min indicator lines. It hasn't used a drip of water up till that day.

10,000 mile car I'am a bit concerned it may be the water pump gland.


lastexile69

513 posts

200 months

Friday 11th April 2014
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Hi
I just had a problem with my 14y/o 986 when the temp light began blinking once up to the regular 80 mark on the gauge - topped up with the pink Porsche coolant which I bought from OPC - only £11 - and no effect (and no visible dropping of the level). Blinking light still on, and noticeable hot smell after any journey!!

Turned out to be the left front rad had swelled and burst, so got it trailered down and had them both replaced by my local indy for almost £400 less than OPC quote.

Cheers