4 captured repliesPartial discussion capture · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCH987.2 Battery drain ? - Page 1 - Boxster/Cayman - PistonHeads UK
Reported or suspected cause
latter causing the problem via the wiring
Reported cause
No successful repair reported for this finding.
1
Identified cause
0
Suspected cause
0
Reported fixes
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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 identifying a cause
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.
Reported cause
In my case it was the latter causing the problem via the wiring to an aftermarket stereo.
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
When I asked him about it he send me a picture of the heater controle unit (with the buttons of the heater and temp settings) and said he to replace that, and he had the PCM repaired (as that was rebooting occasionally) and he had a new battery fitted.
Leading evidence: 'latter causing the problem via the wiring' (1 discussions report identifying this cause; no attributable repair resolution). Across 1 matching discussions, the most frequently mentioned possible cause is 'latter causing the problem via the wiring' (1 discussions; 1 report identifying it and 0 suggest it). The most frequently discussed action is 'Repair (as' (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 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
When I asked him about it he send me a picture of the heater controle unit (with the buttons of the heater and temp settings) and said he to replace that, and he had the PCM repaired (as that was rebooting occasionally) and he had a new battery fitted.
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
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Suggestion · Original poster
Can anyone tell me either how to remove the battery without setting the alarm off or how to lock the passenger door once the battery is removed?
These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.
Repair (as
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
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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
When I asked him about it he send me a picture of the heater controle unit (with the buttons of the heater and temp settings) and said he to replace that, and he had the PCM repaired (as that was rebooting occasionally) and he had a new battery fitted.
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.
4 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
PistonHeads: 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: 20261026T212127Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
I was supposed to go view a 2011 987.2 Boxster 3.4 S PDK (my first Porsche) this Saturday, but the owner has now said that the battery was drained again so he's booked it in with his local Porsche dealer to have to examined.
I've gone through his posts on a Boxster facebook group, and in March 2020 he posted the following :
"
Something is draining the battery after my car went in for servicing, so much so that it won't trickle charge. Can't be sorted now because of lock down.
Can anyone tell me either how to remove the battery without setting the alarm off or how to lock the passenger door once the battery is removed?
"
Reading through his posts he stated there was nothing left in the arm rest power socket, but no real fix was given I think.
When I asked him about it he send me a picture of the heater controle unit (with the buttons of the heater and temp settings) and said he to replace that, and he had the PCM repaired (as that was rebooting occasionally) and he had a new battery fitted.
But obviously something is still draining the battery, is this a common problem and/or has anyone else had a battery draining problem ?
He seems like a genuinely nice guy who is trying to sort this problem before selling the car, so I'm happy to wait until it goes in next month, but just curious to what it could be.
I've had battery drain issues on 986's but not my 987's, so I don't know if this will help, but a lot of guidance pointed me towards an inert Tracker (with dead internal battery) and the frunk-mounted amp.
In my case it was the latter causing the problem via the wiring to an aftermarket stereo.
A good auto electrician should be able to track it down with a decent multimeter and by pulling a few fuses.
Mine was a flaky PCM. Disconnected it and et voilà it lasted a month easily without a trickle charge.
Have upgraded the stereo now...
Hope you find whatever is causing the drain.
