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THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHHow hard is it to replace an alternator?
Leading reported evidence
Replace by an independent
Performed · outcome unconfirmed
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
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1
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Performed · outcome unconfirmed
Just had mine replaced by an independent from Germany.
Leading evidence: 'Replace by an independent' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check belt' (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.
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1
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Suggestion
Check the output of the alternator before replacing.
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Suggestion
(Well, it's live and learn) Don't know about outside Germany but here you can get it at the Bosch service or maybe you can try an independent alternator repair shop.
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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.
Suggestion
(Well, it's live and learn) Don't know about outside Germany but here you can get it at the Bosch service or maybe you can try an independent alternator repair shop.
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.
16 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
Rennlist: 1 discussions
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Generation: 20261027T044418Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
I think my alternator is gone since neither one of my batteries will hold a charge. So is it something I can do myself with simple hand tools or should I just take it to Porsche? It wouldn't be just the belt though because it would over heat right? Where can I get an alternator? Do they have aftermarket better ones?
You should properly diagnoise this before replacing parts. How many volts are you getting when engine does run? Have the car jump started or charge the battery w a charger. If the battery doesn't charge with a charger, the battery needs to be replaced. If you start the car and voltage is under 13v, then alternator is weak. Clean up the battery connectors with a battery terminal tool to avoid poor connection.
If alternator does need replacement, I'd probly let the dealer or indept shop do the job. It's probly a job best to do with a lift. I bet they only charge an hour of labor so that isn't too bad.
Most of the time it's only the regulator which has gone faulty. Porsche will only replace the whole alternator. I had this done at the dealer here in Germany and it cost me 600 � instead of 50 for a new regulator which I could have changed myself. (Well, it's live and learn) Don't know about outside Germany but here you can get it at the Bosch service or maybe you can try an independent alternator repair shop.
Thorsten
Just had mine replaced by an independent from Germany. I asked him the same thing about replacing just the regulator, and was told if a wanted a new part, they are only sold together. Since I only had the car for 2 weeks, the dealer was kind enough to pick up the tab for me.
Well I have two batteries. The race battery was in at the time and it started failing after about two miles. ABS went out all the lights went on, etc. Then I put the stock one back in and it was fine. I noticed it was a little low when I got to my destination. I left after a couple hours and the thing was super low this time with the lights on. Barely made it home. Two batteries both now super low. Pretty sure it's the alternator.
So should I buy one and do it myself? What do you have to do? Do you need any special "Porsche" tools?
Check the output of the alternator before replacing. If it is putting out 13+ volts, then it is not the alternator. If you do need to replace, it is a simple task and just like removing one from any other engine. You may even find a shop that will rebuild it for you. Shouldn't take you more than 1 hour to remove and reinstall. The only special instruction is that when you remove the bolts, you have to turn the alternator counter clockwise to clear for removal.
Oh yeah, this thread...
BTW I too it to Niello in Rocklin to their new facility and wow I was impressed. They only charged me 2 hours which @ $125 per hour is totally worth it. They quoted me $400 for the alternator though so I got a remanufactured core exchange one for 200 or so at another place. So worth it. They also turned off my airbag light for free and cleared all my codes. The best part is this alternator works better and keeps my dry cell 14lb battery charged to 14amps. That's really good. I can install coilovers, sways, exhaust, but engine stuff is too much for me. I think the job cost me $450 total.
