Are there any tricks to replacing the battery ? The dealer wants $500+ and I found an AGW replacement for $200 !
Can anyone walk me thru the process ?
No car information in your signature, so no guess as to why you are considering replacement... ?Sorry I can't answer your question but can you share why you are replacing your battery? Age of battery etc?
Interesting, didn't know that, I replaced my battery on the 997 and it's a pretty simple process, get the right size battery, disconnect it, pull it out, put in new one, connect it and done. It took like 10 minutes.On my 981 in regards to replacing the battery the manual says "let the dealer do it so the new battery can be initialized". I am not sure but I think that is code talk for "if you disconnect the battery your car may not run and might have to be towed to the dealer so they can use PIWIS to initialize various body control modules. I say that after reading many posts in this forum from people whose battery died and after they replaced it the car exhibited very strange behavior include not starting and running.
See what other people say that have been successful in replacing the battery themselves. I think if I was doing it I would try to figure out a way to keep 12 volts on the car while replacing the battery so it never lost power during the process. Hopefully that is a long way off for me and I have a lot of time to figure out a way to do that.
Interesting...see my post about the dealer saying they had to reprogram the main module for even an OEM replacement.Interesting, didn't know that, I replaced my battery on the 997 and it's a pretty simple process, get the right size battery, disconnect it, pull it out, put in new one, connect it and done. It took like 10 minutes.
Interesting, didn't know that, I replaced my battery on the 997 and it's a pretty simple process, get the right size battery, disconnect it, pull it out, put in new one, connect it and done. It took like 10 minutes.
Remember 997 is of the same generation as the 987, and their batteries are conventional flooded cell with the same charging system. So don't apply Ynot's experience to a 981/991. Besides AGM, there's a big difference in the alternator and auto start-stop makes the charging logic more complex on 9x1. I think I'll keep my 987 (with a $120 AGM aftermarket battery).Interesting...see my post about the dealer saying they had to reprogram the main module for even an OEM replacement.
I understood that the reprogramming is only necessary when changing to a non-AGM battery or a non-OEM battery.
Wow, these dealers can lie like crazy.
Agreed, our 2011 BMW X5 has the same requirement.FYI, BMW and other manufacturers have been using this technology for a number of years.
Always done this when parked, so far so good!Yep - I ended-up paying the exhorbitant dealer price of $575 and the dealer said they had to reprogram it AGAIN despite the fact it was an OEM battery replacement.
Apparently, the specs had changed since the original 2014 edition. These AGM batteries only last 3 years....and you must put on a battery saver in the off-season or else the battery is toast in no time flat.
Crazy stuff.
Note: I had found a replacement battery at National Tire and Battery for only $200....but the dealer said I was commited to the OEM battery.
Also read you other thread, I am inclined to agree with you, the computer based systems in these cars require specific information about their components to properly monitor them and react accordingly. So much of the car is monitored and adjusted continually that it is safe to assume the electrical power source will undergo the same checks.I don't think keeping power to the car while swapping the battery is the issue. First, we are talking about 981's only here. Second, I have never lost, or heard of anyone losing, any critical settings by losing power to the vehicle by disconnecting or killing the existing battery.
I believe what we are talking about here is that if a new battery is installed, the ECU needs to be told so, via initialization, that the battery is new. This ensures that the system properly monitors and charges the new battery correctly, ensuring best battery life. This is related to the start/stop technology somehow.
Please correct me if I am wrong here.
So, with that being said, I would still consider replacing a battery as basic maintenance, so would expect Porsche to provide a simple cost free way for us to initialize a new battery. Just as I would expect them to provide a simple cost free way to reset the service reminder.Also read you other thread, I am inclined to agree with you, the computer based systems in these cars require specific information about their components to properly monitor them and react accordingly. So much of the car is monitored and adjusted continually that it is safe to assume the electrical power source will undergo the same checks.
And especially for things like Auto stop/start, it has to know based on conditions (radio on, AC on, lights etc) and calculated against the battery age/condition and reserves just when it can activate stop/start and how long the engine can remain off until it restarts and begins to replenish the batteries reserves to maintain operability. Imagine if you were in the middle of traffic, the computer stops the engine but it cannot restart because of insufficient cranking power, now there would be some complaining!
Having all of this fancy technology comes with a price, it is known and advertised to be in the car, keeping these systems happy and working properly requires that certain steps be taken, if you don't like it then don't buy the car, or if you replace parts with either substandard parts or don't initialize the system properly don't complain when it does work like you expect it to... IMHO it has nothing to do with Porsche trying to keep you coming back, they (should) know their product best and do what is necessary for everything to keep running like it did when delivered. :2cents: