17 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCH'99 C4 Cab rear tail issue
Leading reported evidence
Check around
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
Check around before taking it to the local dealer.
Leading evidence: 'Check around' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check around' (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.
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.
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.
17 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
Rennlist: 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: 20261027T082735Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
Hello everyone,
I am a Porsche newbie and just recently purchased a 99 C4 cab from my brother. The car runs great but there is a problem with the rear tail. It does not activate when it get up to freeway speeds. The light on the dash for the rear tail is also illuminated. I checked if the rear tail motor was good and when I apply power to the motor the tail activates. Has anyone else had a problem with their rear tail? Hope you guys can help and this forum has helped me learn a lot about Porsches.
Rob C.
Unless you've got the top down and someone leaning out the back you won't see or hear it deploy. Have someone tail behind you and get over 75, then see if it deploys.
Yes the spoiler light is "on" on the dash. What will cause the light to go "on"? I had someone tail me at 80 mph and the spoiler does not come up. I will get photos of the car up soon. It was raining this past weekend so no photos. Sorry. Rob C.
The back of the cab is just high enough to not be able to see it when it's up, even when stretching out of the seat to try and see it.
I missed the light on part early. When I first start the car the tail light stays on a few seconds longer than all the other lights, but it has always gone off. Probably something you'll have to have looked at. Check around before taking it to the local dealer. I took mine to Sunset Imports when I first bought it to have a few things checked out and it was basically a waste of money. I found a local indy mechanic and told him my concerns and he nailed everything on the nose for less than half what Sunset charged.
I can't see mine...99 C4 as well..
My wife was driving behind me and saw it come up so I know it works. Though would be cool if I could see it too
.
thanks,
Amir
pl-are you talking about the button located on the fuse control cover that deploys the tail? If so no, I can not deploy the tail. I have tried hooking up the tail motor to direct power and it works fine. When you deploy the tail manually does the light on the dash illuminate?
in normal condition, the light should come on briefly when you start moving the car. once your speed exceed 5 mph, it goes away; if it stays on, you have a problem.
