fullymatted.
Back to search
Porsche Club GB

2004 996 C4S - Rear Spoiler Problem

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

Discussion summary

YOUR RESEARCH2004 996 C4S - Rear Spoiler Problem

Leading reported evidence

Check wiring

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

Both relays are operational so there is obviously something loose somewhere - checked wiring but nothing obvious.

2004 996 C4S - Rear Spoiler Problem
Read full discussion summary

Leading evidence: 'Check wiring' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, the most frequently mentioned possible cause is 'microswitch' (1 discussions; 0 report identifying it and 1 suggest it). The most frequently discussed action is 'Check wiring' (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 · 3 captured posts examined · 0 partial discussions

Compare 4 other evidence results

Disconnect battery whilst i looked at manual switch

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

Disconnected battery whilst I looked at manual switch - reconnected and spoiler operated normally twice then back to sticking up again!!

2004 996 C4S - Rear Spoiler Problem

Replace relay and all ok

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

Replaced relay and all ok.

2004 996 C4S - Rear Spoiler Problem

Replace relay and have swopped them around several times

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

I have replaced the faulty relay and have swopped them around several times which indicates that they both work.

2004 996 C4S - Rear Spoiler Problem

microswitch

Suggestion or failed attempt

No successful repair reported for this finding.

0
Identified cause
1
Suspected cause
0
Reported fixes
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 suspect a cause
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.

Suspected cause

Failing that, I would suspect a microswitch, but I believe they are difficult to access (inside the drive mechanism) and not available as separate parts from Porsche, so you would have to find an equivalent.

2004 996 C4S - Rear Spoiler Problem
Frequently discussed actions (5)

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

Check wiring

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

Both relays are operational so there is obviously something loose somewhere - checked wiring but nothing obvious.

2004 996 C4S - Rear Spoiler Problem

Disconnect battery whilst i looked at manual switch

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

Disconnected battery whilst I looked at manual switch - reconnected and spoiler operated normally twice then back to sticking up again!!

2004 996 C4S - Rear Spoiler Problem

Replace relay and all ok

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

Replaced relay and all ok.

2004 996 C4S - Rear Spoiler Problem

Replace relay and have swopped them around several times

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

I have replaced the faulty relay and have swopped them around several times which indicates that they both work.

2004 996 C4S - Rear Spoiler Problem

Replace right one

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

Stupid question, but can you be sure you replaced the right one?

2004 996 C4S - Rear Spoiler Problem
Reported and suspected causes (1)

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

microswitch

No successful repair reported for this finding.

0
Identified cause
1
Suspected cause
0
Reported fixes
Read evidence and context
Discussions that suspect a cause
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.

Suspected cause

Failing that, I would suspect a microswitch, but I believe they are difficult to access (inside the drive mechanism) and not available as separate parts from Porsche, so you would have to find an equivalent.

2004 996 C4S - Rear Spoiler Problem
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.

3 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.

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

Outcome without a verified action link

Yesterday checked it went up and down many times so put it in garage thinking I had solved problem.

No unique explicit quoted action; no causal link assigned

Generation: 20261026T165820Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Rear Spoiler problem. Firstly failed to retract and I traced problem to faulty relay. Replaced relay and all ok. Spoiler operates fine when going. Yesterday checked it went up and down many times so put it in garage thinking I had solved problem. Today problem back again - went up and stayed up so I swopped the relays over again and it goes down but will not go up again unless I swop relays over again. Both relays are operational so there is obviously something loose somewhere - checked wiring but nothing obvious. Disconnected battery whilst I looked at manual switch - reconnected and spoiler operated normally twice then back to sticking up again!! Got me foxed and wondering if micro switches are plying up although it worked perfectly well yesterday!! Any suggestions would be greatly appreciated! Thanks, Neil.

POST 2Original post

Nothing worse than an intermittent electrical problem. From what you say about relay swapping, I would have thought it points to one of them being faulty. Stupid question, but can you be sure you replaced the right one? Failing that, I would suspect a microswitch, but I believe they are difficult to access (inside the drive mechanism) and not available as separate parts from Porsche, so you would have to find an equivalent.

POST 3 / ORIGINAL POSTEROriginal post

Thanks for your reply. I have replaced the faulty relay and have swopped them around several times which indicates that they both work. I even returned the new relay from Porsche as I thought it was defective but now I am not so sure! Both relays will operate the spoiler up and down but will not continue normal operation unless I move the relays around again. Yes intermittent elecrical faults are very frustrating!

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