I asked this on the TT forum also.
The battery in one of my keys died today. Has anybody changed their own battery? I have the TSB and it says for the dealer to inform their customers not to replace the battery themselves. Is this a way to make a few extra bucks or true? The TSB gives a step by step how to and looks like a no brainer. Is the battery Porsche specific and only dealer sold or a off the shelf size? I dont want to take a chance on messing up the programing so I figured asking here would be best first.
Oh yea I did a search

 

If I remember correctly when I replaced one in my 01 986S it was about 5 bucks at the dealer and I did it myself, The fob did not lose it's programming

Your mileage may vary

 

I've popped the battery out a few times with no problems...dealer is full of it if he says he needs to do it.

 

Where do you get new batteries from?

 

Did my own. Just brought my key to a neighborhood hardware store. They knew immediately what size battery. We popped it in and I was back in business in 60 seconds. Good luck. Andy T

 

They dealer just wants to bag you an hours labor to program, like they do when you buy a new key.

 

thanks.

 

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