fullymatted.
Back to search
Porsche Club GB

Windows not working after flat battery

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

Discussion summary

YOUR RESEARCHWindows not working after flat battery

Leading reported evidence

Install battery only a few weeks beforehand

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 had installed a new battery only a few weeks beforehand.

Windows not working after flat battery
Read full discussion summary

Leading evidence: 'Install battery only a few weeks beforehand' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Install battery only a few weeks beforehand' (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 · 7 captured posts examined · 0 partial discussions

Compare 2 other evidence results

Reset motor each window

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

Windows limits will need resetting, Motor each window to fully down by continuously pressing switch and hold for further 10 seconds, then motor up again by continuously pressing switch and hold for further 10 seconds.

Windows not working after flat battery

Use of my durametric software

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

Not sure where you are located but if you make it down to Hertfordshire M25 area then I can offer the use of my Durametric software to help your cause.

Windows not working after flat battery
Frequently discussed actions (3)

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

Install battery only a few weeks beforehand

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 had installed a new battery only a few weeks beforehand.

Windows not working after flat battery

Reset motor each window

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

Windows limits will need resetting, Motor each window to fully down by continuously pressing switch and hold for further 10 seconds, then motor up again by continuously pressing switch and hold for further 10 seconds.

Windows not working after flat battery

Use of my durametric software

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

Not sure where you are located but if you make it down to Hertfordshire M25 area then I can offer the use of my Durametric software to help your cause.

Windows not working after flat battery
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.

7 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

Thx for the suggestion but unfortunately that didn't work .

No unique explicit quoted action; no causal link assigned

NEARBY ACTION · LINK UNVERIFIED

Windows limits will need resetting, Motor each window to fully down by continuously pressing switch and hold for further 10 seconds, then motor up again by continuously pressing switch and hold for further 10 seconds.

Nearby source post

Generation: 20261026T200546Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

I have a 2001 996 C4 Cab . I let the battery go flat after the car had been standing for a few weeks. I had installed a new battery only a few weeks beforehand. I knew there was a fair chance it would go flat so had left the bonnet latch open so could get to the battery to jump start it and managed to get it going ok. However when I powered the drivers side window down , I couldn't get it up again. I took the car for a 30 minute drive but it would not reset the drivers window. I put the car on charge to let the battery upto to full charge. I had the hard top on and seemed to recall that I'd had windows out of synch previously and operating the hood a couple of times got them working again. So a couple of days later i removed the hard top and operated the hood. First time the passenger window went down and and came back up again when the hood came back up, but the driver window didn't move (still fully down) . I did it again but this time when the hood came up the pass window stayed down . I operated it a few more times but neither windows are now coming up . Any ideas appreciated.

POST 2Original post

Possibly low battery voltage has confused the control module. Remove fuse that supplies windows, wait a few seconds and replace. Windows limits will need resetting, Motor each window to fully down by continuously pressing switch and hold for further 10 seconds, then motor up again by continuously pressing switch and hold for further 10 seconds. Hope this helps with fixing your problem.

POST 3 / ORIGINAL POSTEROriginal post

Thx for the suggestion but unfortunately that didn't work . This might be because the windows are are already powered down .

POST 4Original post

Hi Chris Your symptoms do seem rather odd, re the driver’s side window the best option is to see if power is being supplied to the motor, apart from that if you could get the car plugged in to a proper Porsche tester that should save you time trouble and guesswork. Hopefully is just a doggy micro-switch of which there are a number, the tester should hopefully identify the culprit. Good luck Andy

POST 5 / ORIGINAL POSTEROriginal post

Thx Andy. Will get into a specialist as soon as I can

POST 6Original post

Hi Chris, Not sure where you are located but if you make it down to Hertfordshire M25 area then I can offer the use of my Durametric software to help your cause. J

POST 7Original post

Did this every get resolved? I've had the same issue but the passenger window went down when I jumped the car with a flat batter. Now (even with a new battery), it won't come back up.

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