Porsche Club GB

Alternator/regulator problem

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3 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis

THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHAlternator/regulator problem

Reported repair

Install regulator and it has

Reported resolution

1
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

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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 report a fix: 1

1 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.

Reported fix · Original poster
Just fitted a new regulator and it has cured the problem.
Original post Read captured discussion
Alternator/regulator problem

Read full discussion summary

Leading evidence: 'Install regulator and it has' (1 discussions report resolution; 0 report an unsuccessful attempt). Across 1 matching discussions, The most frequently discussed action is 'Install regulator and it has' (1 discussions). For that action, 1 discussions report a resolution and 0 report an unsuccessful attempt. The most frequently reported fix is 'Install regulator and it has', supported by resolution reports in 1 discussions. 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.

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1 matching discussions · 3 captured posts examined · 0 partial discussions

Compare 4 other evidence results

Check i suppose

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

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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 · Original poster
I'm going to take the alternator off anyway so I could get it checked I suppose, but don't want to be ripped off for a new unit if it's likely to be just the regulator.
Original post Read captured discussion
Alternator/regulator problem

Repair regulator-replacement.html

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

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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
There's quite a good DIY here: http://forums.pelicanparts.com/porsche-996-997-forum/408495-alternator-repair-regulator-replacement.html
Original post Read captured discussion
Alternator/regulator problem

Replace f 00m 145 350)

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

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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
Bosch Part number: F 00M 145 225 (Replaces F 00M 145 350).
Original post Read captured discussion
Alternator/regulator problem

Run ok and no battery light so i carried

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

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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 · Original poster
Hi guys, On my way home last night I noticed that the dash voltmeter was only showing 12 V, but everything was running ok and no battery light so I carried on.
Original post Read captured discussion
Alternator/regulator 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.

Install regulator and it has

1
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

Discussions that report a fix: 1

1 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.

Reported fix · Original poster
Just fitted a new regulator and it has cured the problem.
Original post Read captured discussion
Alternator/regulator problem

Check i suppose

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 · Original poster
I'm going to take the alternator off anyway so I could get it checked I suppose, but don't want to be ripped off for a new unit if it's likely to be just the regulator.
Original post Read captured discussion
Alternator/regulator problem

Repair regulator-replacement.html

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
There's quite a good DIY here: http://forums.pelicanparts.com/porsche-996-997-forum/408495-alternator-repair-regulator-replacement.html
Original post Read captured discussion
Alternator/regulator problem

Replace f 00m 145 350)

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
Bosch Part number: F 00M 145 225 (Replaces F 00M 145 350).
Original post Read captured discussion
Alternator/regulator problem

Run ok and no battery light so i carried

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 · Original poster
Hi guys, On my way home last night I noticed that the dash voltmeter was only showing 12 V, but everything was running ok and no battery light so I carried on.
Original post Read captured discussion
Alternator/regulator problem

Actions with reported resolution accounts (1)

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

Install regulator and it has

1
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

Discussions that report a fix: 1

1 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.

Reported fix · Original poster
Just fitted a new regulator and it has cured the problem.
Original post Read captured discussion
Alternator/regulator 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.

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

Generation: 20261026T163944Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Hi guys, On my way home last night I noticed that the dash voltmeter was only showing 12 V, but everything was running ok and no battery light so I carried on. By the time I got home (another 5 miles or so) it was reading only 11.5V. I turned off the ignition and then tried to restart with no joy only clicking so I put the battery on charge overnight. This morning the battery is fully charged, showing 12.5V using a multimeter, (it was new 18 months ago) so started her up, no problem, voltage didn't drop below 10.5V on cranking so battery ok. Intially I got 14.4V charging at the battery then after a few seconds the voltage dropped steadily to 12V, I guess if I left it would have gone down to 11.5V as the day before. Question-Is that just the voltage regulator backing up or the alternator? I'm going to take the alternator off anyway so I could get it checked I suppose, but don't want to be ripped off for a new unit if it's likely to be just the regulator. I've read some other posts, but my problem seems slightly different. Thanks for any help. Jon

POST 2Original post

Sounds like it could be the regutator - it is a Bosch part, and about £25-ish. There's quite a good DIY here: http://forums.pelicanparts.com/porsche-996-997-forum/408495-alternator-repair-regulator-replacement.html Bosch Part number: F 00M 145 225 (Replaces F 00M 145 350). Porsche Part No: 000.043.206.37.

POST 3 / ORIGINAL POSTEROriginal post

Thank you Richard. Just fitted a new regulator and it has cured the problem. Great DIY instructions and the job was very easy, first engine job I've done on my 996.

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