fullymatted.
Back to search
Porsche Club GB

I need to top up coolant

Add to repair workspace
Open repair workspace
Original source
6 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHI need to top up coolant

Leading reported evidence

Use comma g40

Performed · outcome unconfirmed

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context

Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.

Discussions that performed work without a confirmed outcome
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Performed · outcome unconfirmed

I also used comma g40 when i drained the system and filled it fresh.

Original post Read captured discussion
I need to top up coolant
Read full discussion summary

Leading evidence: 'Use comma g40' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Use comma g40' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.

Source reports, not a diagnosis or a success probability. Counts refer to discussions and can overlap.

Read captured replies

1 matching discussions · 6 captured posts examined · 0 partial discussions

Compare 1 other evidence results

Use just tap water

Performed · outcome unconfirmed

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context

Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.

Discussions that performed work without a confirmed outcome
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Performed · outcome unconfirmed · Original poster

can I use just tap water for now?

Original post Read captured discussion
I need to top up coolant
Frequently discussed actions (2)

These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.

Use comma g40

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that performed work without a confirmed outcome
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Performed · outcome unconfirmed

I also used comma g40 when i drained the system and filled it fresh.

Original post Read captured discussion
I need to top up coolant

Use just tap water

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that performed work without a confirmed outcome
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Performed · outcome unconfirmed · Original poster

can I use just tap water for now?

Original post Read captured discussion
I need to top up coolant
Coverage and how to read this overview

Counts describe captured discussions, not unique people or a diagnosis. Author identities are not reliably stored. Exact duplicate evidence is counted once across matching discussions; one discussion counts at most once per action/state. Multiple repairs reported together remain a combination. Suggestions and failed attempts do not establish a fix. Matches cover whole discussions and can include related faults, model variants and incomplete threads.

6 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.

  • Porsche Club GB: 1 discussions

0 evidence records excluded for query context · 0 excluded by outcome qualification · 0 adjusted by outcome qualification.

0 acknowledgements have no verified action link; they do not establish a repair result.

Generation: 20261026T205155Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

hello! I need to top up coolant - it's sitting below Min- tap water or anything special, like deionised, distilled or homeopathic water? and any recommendations for coolant or am OK just to top up with a little water for now? can I use just tap water for now? since I don't have anything 'special' about? it's about 10mm below min. so it only really needs a splash cheers

POST 2Original post

personally I would just top it with water there are enough inhibitors in coolant to eradicate any issues a bit of tap water would cause. But I dare say someone will say "NO it must be Distilled water from the Stuttgart fairy"

POST 4Original post

If it is just a small amount required, the I would agree with Richard. If it was a litre or so, I would get a 2litre bottle of Comma G40 Xtream from somewhere like Halfords, and use that. Always useful to have some on the shelf for top-ups in the future, rather than slowly diluting over a long period of time.

POST 5Original post

I also used comma g40 when i drained the system and filled it fresh. Had to buy 2x 5 litre bottles so have plenty spare if required later. However, with the winter just around the corner it would be prudent to find out whether the small loss is not suspicious. Small pinholes can sometimes turn up in the expansion tank, as mine did. All the best and keep fingers crossed.

POST 6Original post

Its much less than twice the price for a 5 litre than a 1 litre MAKE SURE YOU GET CONCENTRATE About 22.50 fro Halfords. ) 1 litre 12.80)

This is a source reference. Confirm exact model applicability in the original material.