11 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHDriver's window fault
Leading reported evidence
Replace by northways, mine was not always lowering
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
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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 sensor that effects the window lowering and raising the window slightly when opening the door is the door latch sensor, part recently cost me £81+v when recently replaced by Northways, mine was not always lowering when opening the door.
Leading evidence: 'Replace by northways, mine was not always lowering' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, the most frequently mentioned possible cause is 'porsche made a typo' (1 discussions; 0 report identifying it and 1 suggest it). The most frequently discussed action is 'Lubricate mechanism and runners' (1 discussions). For that action, 0 discussions report a resolution and 1 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 suspect a cause
1
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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
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Suspected cause · Original poster
This started on Xmas eve - probably the worst time of year to break as garages are shut for days.
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 report an unsuccessful attempt
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Unsuccessful attempt · Original poster
I've lubricated the mechanism and runners but this has made no difference.
Replace by northways, mine was not always lowering
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 sensor that effects the window lowering and raising the window slightly when opening the door is the door latch sensor, part recently cost me £81+v when recently replaced by Northways, mine was not always lowering when opening the door.
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.
11 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: 20261027T020439Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
*sigh* another fault has developed, this time with the driver's window. The motor is struggling to lower the window by the usual amount when I open the door and it's barely clearing the rubber seal. It's the same when I close it; it's really struggling to wind itself up into the seal. To be sure the window's low enough before closing the door I have to open it manually a bit first . A few times it has got itself stuck in a loop: it tries to close itself, fails, winds itself down a bit, tries again, fails... This has conspired with the failure of my central locking to prevent me from locking the car at all at times (locking the car with the key initiates the window mechanism, which then gets itself stuck in the above loop). I've been having to close the window from inside with the button, climb out of the passenger door and leave it unlocked. This started on Xmas eve - probably the worst time of year to break as garages are shut for days. Any ideas? I've lubricated the mechanism and runners but this has made no difference. What usually causes this?
I'm taking the car to an independent Porsche garage tomorrow to see what the diagnostic machine makes of the central locking fault, which is irritatingly intermittent. It usually breaks itself after 45 min drive so fingers crossed it does that in the morning. So far it's randomly fixed itself after hours or days parked on the drive. The central locking started playing up before the window so I don't think the two issues are related.
Since I bought the car in October ('99 996 C4 with 81k and full Porsche service history) the oil pressure sensor has failed and now the central locking and drivers door window mechanism. Although used to owning old cars over the years this is my first Porsche and I'm beginning to be disappointed with the build quality. Thankfully it's not my only car.
The sensor that effects the window lowering and raising the window slightly when opening the door is the door latch sensor, part recently cost me £81+v when recently replaced by Northways, mine was not always lowering when opening the door. I believe it also can have an effect on the central door locking or vis-a-versa.
Did the car come from a trader with a warranty!? If not then , you should expect some wear and tear faults as the car is 13 years old.
Does the window work smoothly on the button? If you get the window half way open, can you pull it up and down a bit if you grab it by hand? If the motor is struggling, and there is some play in the mechanism, it may well be the window regulator (cables) which are failing. If so, it needs changing, but I don't think it is related to your locking problem. The car would lock, no matter what position the windows are in. As Gordon says, that is most likely one of the microswitches inside the door lock assembly.
Tks for your responses. The window does work smoothly all the way up. The window is trying to lower itself when the door handle is pulled but it only achieves about half the normal distance, which is barely enough to clear the door seal. I've just been looking at the workshop manual and it refers to an adjustment valve - "Adjustment valve for window lowering function approx. 13mm". Do you know where this valve is?
That's a very old manual, but it is a typo they have carried forward to much later versions.
Is it the plastic screw in the door pocket they missed out? Seems to catch most people out.
It's not at all obvious that screw's there in the workshop manual I have. They refer to a compression screw, which may or may not be it. If you peer closely at the picture the plastic screw is shown but I missed it the first time I tried to remove the panel.
I took the car to the garage but the central locking was working, typically. They connected it to the ECU and looked in the log but it was full of alarms linked to the central locking and window failing - too many to know what was the root cause. The feeling is that it's the driver's door lock though. While it was there they lowered the height of the driver's window and that seems to have fixed that issue.
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