14 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHBattery low, hard restart after long drives
Leading reported evidence
Replace starter this morning
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.
Leading evidence: 'Replace starter this morning' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check alternator' (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.
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
My dealer used the Interstate solution about $220 with install.
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 · Original poster
He said if it continues, he will look into replacing the battery or check the alternator.
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.
14 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: 20261027T060112Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
New to this list. Just purchased my first water cooled Porsche, a '99 C2 Cab. When I first got the car home, after about 20 miles of spirited driving, I returned to the car and starter was very slow to turn over. After about three attempts, the car finally started. The starter cranked more after each attempt. I inquired of my mechanic, who had arranged the purchase and had been driving the car for several days. He stated he never noticed this problem, and that he feels the older 996's seem to crank slower than other models. He said if it continues, he will look into replacing the battery or check the alternator. Until yesterday, about two weeks later, I had not experienced this problem again, but have only taken short drives to the office. Yesterday, I drove approximately 130 miles to PCA Octoberfast. I arrived and parked the car to await the finishing laps of the race. I was out of the car maybe 15 minutes and got back in to move the car. It sounded as if it was completely dead. The second attempt at turning the key, it cranked but did not start. On the third attempt is was slow but cranked up. I parked the car for the day. When I returned to leave that evening, it started right up. I drove home last night with the lights on and all equipment running and everything worked flawlessly. I went back out after about 20 or 30 minutes and the car started right up. If this matters, the battery gauge is normally between 12 and 14. What do you make of this? Has anyone else experienced the same? Any help would be appreciated, as I go to racing school on Friday. With the hot driving, I don't want to experience the same. I will be taking to the mechanic this week. Thanks in advance for any assistance.
you need a new battery; doesn't look like it's holding a charge anymore. Take it out and bring it to Autozone or some other place like it and have them test it. They'll tell you in few minutes whether it's good or not.
And by all means, DO NOT waste your money on a Porsche battery. I have made that mistake in the past. The last one made it less than 2 years! Yes, I use a battery maintainer.
I recommend the
Interstate Battery #MTP-H7
. This is the DIRECT replacement in terms of size and location of the vent hose attachment point. You will NOT need the vent hose adapter kit. It uses one of the existing clamp points on the battery tray. It's an 800 amp (640CCA) battery compared to the stock Porsche's 380. The engine turns over much faster then before.
It also comes with an 85 month no-questions asked warranty. The Porsche one does not.
.
My dealer used the Interstate solution about $220 with install. A friend of mie paid in the three hundreds for the Porsche install solution at his dealer.
No, the car would turnover slowly after long drives but turnover normally after it cools off. The mechanic said that the battery would not recharge after sitting. So it could not be the battery. He replaced the starter this morning. Seems to be working fine.
$220??!!
No wonder they are often called a "stealer". The Interstate battery #MTP-H7 is around $160 at an Interstate Battery center. You can install it yourself in about 2 minutes or they will install it for $10.
There is absolutely no argument there are many inexpensive batteries out there that will do the job. If you really want to go cheap I think there is a Costco model for around $50.
However, the reason the Interstate MTP-H7 is so often recommended is that it is the IDENTICAL battery to the factory Moll.....with the exception of the short lifespan and lack of warranty!
Some care and some don't but it's the same case, same flip up handles, same vent location, color, etc. Once installed in the battery box with the label out of sight you would be hard pressed to know it wasn't factory.
.
My original equipment battery started not taking a charge after 4.5 years. I just bought an Interstate MTP-H7 yesterday after reading this thread. It was about $150.00. It is exactly the same size as the original.
This battery does not look like the original however. It is all black and the cells are sealed. I"m not sure if they sell different versions of this battery(anyone know if they changed the specs?). The vent is on the right side and plugs into the vent tube perfectly. Overall I am very happy with it. It has a great warranty.
Aloha
This is a source reference. Confirm exact model applicability in the original material.
