Porsche 997 battery

[Dave1954]

Hi I've just signed up to piston heads , I need some help battery has just about packed in, if I disconnect it will i have to put any codes back in like the radio. Much appreciated. Dave

[AMG Merc]

Can't promise but in my case nothing needed resetting.

[David W.]

Connect another 12v power source to the + and - leads while you swap. It can make the job fiddliey but you wont have to reset anything. There is otherwas a procedure to stop the alam going off too, google is you friend here.

[Johnrosk]

Changed my battery 997 Gen 2 with no issues apart from the PASM which reset itself aver driving a few metres down the road.

[996TT02]

If anything like the 996 - leave key in ignition so alarm won't go off, and the radio will need a code inputting (if applicable) - if you know it, hardly any hardship. Idle speed and probably fuel mix will self adjust shortly after and the windows won't single-shot open or close till they have been operated fully a few times, and the ignition subsequently switched off.

In short no big deal the only thing I'd care about is the alarm not going off, and having the code for the radio, the rest takes care of itself. I disconnect the battery practically every time I use it - I don't use the car daily.

[BrotherMouzone]

996TT02 said:

If anything like the 996........ and the windows won't single-shot open or close till they have been operated fully a few times, and the ignition subsequently switched off.

Ha! Did not know that about the windows.

Changed the battery on my 996 recently, and was wondering if I had broken it!

Cheers!

[kingston12]

On my 987 there is a known issue with the heated seats - the car forgets that the option is fitted after the battery has been disconnected.

The only way to get them back on is to run the PIWIS handover, a convenient £100 to your OPC unless you have access to your own machine.

I'm not sure if this applies to the 997, but maybe something to think about.