fullymatted.
Back to search
Porsche Club GB

Small spot of water on garage floor - C4S...

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

Discussion summary

YOUR RESEARCHSmall spot of water on garage floor - C4S...

Leading reported evidence

Fill system

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 found that I had over filled the system.

Small spot of water on garage floor - C4S...
Frequently discussed work

Clean moisture

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that contain suggestions
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.

Suggestion

If it's clear, clean moisture then it's likely to be the condensation drain from the aircon.

Small spot of water on garage floor - C4S...
Read full discussion summary

Leading evidence: 'Fill system' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Clean moisture' (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 · 5 captured posts examined · 0 partial discussions

Compare 3 other evidence results

Replace before i got the car

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

The expansion tank had been replaced before I got the car.

Small spot of water on garage floor - C4S...

Replace cap

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 had a similr problem a while ago, I replaced the cap with the latest version but still water came out of the top.

Small spot of water on garage floor - C4S...

Clean moisture

Suggestion or failed attempt

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 contain suggestions
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.

Suggestion

If it's clear, clean moisture then it's likely to be the condensation drain from the aircon.

Small spot of water on garage floor - C4S...
Frequently discussed actions (4)

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

Clean moisture

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that contain suggestions
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.

Suggestion

If it's clear, clean moisture then it's likely to be the condensation drain from the aircon.

Small spot of water on garage floor - C4S...

Fill system

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 found that I had over filled the system.

Small spot of water on garage floor - C4S...

Replace before i got the car

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

The expansion tank had been replaced before I got the car.

Small spot of water on garage floor - C4S...

Replace cap

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 had a similr problem a while ago, I replaced the cap with the latest version but still water came out of the top.

Small spot of water on garage floor - C4S...
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.

5 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: 20261026T105141Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Evening Gents , I have a 2003 C4S 39000 miles - on a few occasions Ive noticed a small 3inch diameter pool of water on the garage floor lying roughly below where the coolant reservoir sits - now I vaguely remember some time ago reading a thread on here of a very similar nature relating to a coolant reservoir cap issue with part number ending .....001 . But its so long ago I cant really remember the true facts - can some kind person shed some light this leak or do you remember the thread in question - many thanks Barry ( sunny Glasgow )

POST 2Original post

It might be the coolant cap - latest part number is 996.106.447.04 - so its the 5th version! Another possibility is the coolant tank itself is cracked or has a pinhole. Look for water marks on the engine compartment just under the tank. The tank is only on its 3rd version, btw.

POST 3Original post

If it's clear, clean moisture then it's likely to be the condensation drain from the aircon. This is absolutely normal and nothing to worry about. If it's tinted and won't dry up, it's likely to be cooloant and you'll need to get the system checked out. Front radiators are vulnerable in 911's and leaks often become more apparent further back after the car has been driven. Good luck. Regards, Clive

POST 4 / ORIGINAL POSTEROriginal post

Many thanks gents this is where the forums become invaluable ....thanks for your input . I'll check the reservoir closely tomorow and may invest in the latest coolant cap - its definately coolant as it tastes sweet . Thanks again Barry

POST 5Original post

I had a similr problem a while ago, I replaced the cap with the latest version but still water came out of the top. The expansion tank had been replaced before I got the car. I found that I had over filled the system. Be draining back to the correct level, I haven't had a drop out of it since DAve.

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