997.1 GT3 Totally dead help needed

[Sim P]

I have been a very silly boy !!
I moved my GT3 out from the garage yesterday to grab some paint from the back storage area of the garage, I left the keys in the ignition as I was only thinking I would be and hour before putting the car back in the garage (the car was safe). One thing led to another and 8 hours later I went back to the car to discover that the key was 'locked' into the ignition - this I know about and understand how to sort out ! Key removed ....

When I then inserted the key again there are no lights on the dash and no power whatsoever, I assume that the battery is totally flat.

I have conducted the emergency operation to pop the front lid so I can charge up but this does not work and I cannot get the front to open to allow access!!

Has the car gone into some sort of full shut down mode ? Anyone know what I can try next? Bump start the car ?

Thanks

[ThePrincipal]

Is the cigarette lighter live on the 997 GT3 with the key removed?
If it is, you could connect a trickle charger with the appropriate adaptor and get enough power to the car.

[Cheib]

Don’t know whether you can on 997.1 but on some 911’s you can charge through the lighter socket. Although I somehow doubt a totally dead battery would work but maybe it gets enough power to open the boot.

[TonyG2003]

You can use a charger attached to the charging post in the fuse box in the rhs of the drivers footwell. Negative attached to the door lock catch. That will either give you enough power to open the bonnet or charge the battery to start. I keep a small battery booster in the glove box for this very purpose

[Sim P]

Ah ha, didn't think of that, well done lads, will try that later on and let you know if it works !

[Sim P]

Thanks Tony, that does not work for some reason,already tried that approach

[STiG911]

I had the same problem when I left my 997 for about three weeks having forgotten to flick my maintenance charger on when I parked up.
It took a while to figure out, but the emergency battery post in the fuse box is a bit finicky, so you need to be sure to use the correct terminal type in order to get a good purchase on the metal, otherwise nothing will happen.

You could, alternatively, connect a charger to the cigarette socket, but with a totally dead battery it will take a looooooong time before there's any meaningful charge present to trigger the bonnet release, and even then, you'll have to be careful that the simple act of opening the door to reach it doesn't result in the interior lights killing off what charge has built up.

Assuming you do succeed in getting the bonnet open, it might take up to two or three days to get a full charge back in the battery. If it's more than three or four years old, you might have actually killed it altogether. Also, remember to remove the bonnet light while charging - it does shut off after a while, but every little helps.

Good luck.

[Whoozit]

Rather than recharge the battery, replace it if funds allow. Definitely if it's >4 years old. My 997T has left me stranded twice with 5yo battery. Like it has a calendar or something.

[braddo]

Whoozit said:

Rather than recharge the battery, replace it if funds allow. Definitely if it's >4 years old. My 997T has left me stranded twice with 5yo battery. Like it has a calendar or something.

And especially if the current battery is the standard Porsche one! The brand is Moll I think?

Or if the battery isn't old:
I recently bought a lithium jump starter from Halfords and I'm very impressed - it's the size of a small book and it had no trouble jump starting my Cayenne! £85 for 'up to 3L' but it made light work of the massive battery on my 4.8L Cayenne.

https://www.halfords.com/motoring/battery-maintena...

[lowndes]

ThePrincipal said:

Is the cigarette lighter live on the 997 GT3 with the key removed?
If it is, you could connect a trickle charger with the appropriate adaptor and get enough power to the car.

The cigarette lighter socket in the centre armrest of a 997.2GT3 is permanently live and can be used with a CTek type charger with cigarette adaptor to maintain charge when the car is locked and systems shut down. MXS 5.0 have a recon facility for deep discharged batteries ( but not dead ones)

[DRH986]

I'd assume the 997 GT3 has the emergency manual front hood release like the rest of the 997/987 range?

[anonymous-user]

Sim P said:

Thanks Tony, that does not work for some reason,already tried that approach

try a few times and make sure you booster has ample charge and the clip is correctly located onto the charging point. the clip must contact with the brass plates on the charging point.

i had to do it a few times but it did work in the end.

[NIgt3]

Mine done that!! If you try the emergency thingy and getting someone to push down on the bonnet at the same time it should pop open!

[Digga]

OP, hope you get it sorted.

Whoozit said:

Rather than recharge the battery, replace it if funds allow. Definitely if it's >4 years old. My 997T has left me stranded twice with 5yo battery. Like it has a calendar or something.

Hoping I am not hijacking or to diverting thread too far to ask if anyone else has fitted an Antigravity battery to theirs?

Not sure if this is correct one, but: https://www.antigravitybatteries-uk.co.uk/extreme-...

[Taffy66]

Digga said:

Hoping I am not hijacking or to diverting thread too far to ask if anyone else has fitted an Antigravity battery to theirs?

Not sure if this is correct one, but: https://www.antigravitybatteries-uk.co.uk/extreme-...

I've fitted an Antigravity 40Ah to my RS WP. Brilliant battery with no need for a tender plus a 14Kg+ weight saving. Just plug and play with no negatives whatsoever. The UK importer is also very helpful and willing to discount if pressed.

[Porsche911R]

Taffy66 said:

Digga said:

Hoping I am not hijacking or to diverting thread too far to ask if anyone else has fitted an Antigravity battery to theirs?

Not sure if this is correct one, but: https://www.antigravitybatteries-uk.co.uk/extreme-...

I've fitted an Antigravity 40Ah to my RS WP. Brilliant battery with no need for a tender plus a 14Kg+ weight saving. Just plug and play with no negatives whatsoever. The UK importer is also very helpful and willing to discount if pressed.

me too but I went H6 30Ah, that's why our weight were odd between us the other month :-) at least we got to the bottom of that.

I have never charged mine yet and works a dream even after 3 weeks none use the car always starts.
I saved 33.5 lbs/ 15.2 kg.

[D.no]

Porsche911R said:

me too but I went H6 30Ah, that's why our weight were odd between us the other month :-) at least we got to the bottom of that.

I have never charged mine yet and works a dream even after 3 weeks none use the car always starts.
I saved 33.5 lbs/ 15.2 kg.

They look fantastic, but they're £750

[Digga]

Porsche911R said:

Taffy66 said:

Digga said:

Hoping I am not hijacking or to diverting thread too far to ask if anyone else has fitted an Antigravity battery to theirs?

Not sure if this is correct one, but: https://www.antigravitybatteries-uk.co.uk/extreme-...

I've fitted an Antigravity 40Ah to my RS WP. Brilliant battery with no need for a tender plus a 14Kg+ weight saving. Just plug and play with no negatives whatsoever. The UK importer is also very helpful and willing to discount if pressed.

me too but I went H6 30Ah, that's why our weight were odd between us the other month :-) at least we got to the bottom of that.

I have never charged mine yet and works a dream even after 3 weeks none use the car always starts.
I saved 33.5 lbs/ 15.2 kg.

Thanks guys, good to know.

I'm inclined to go 30Ah but get a charger too (currently use a CTEK anyway) so I don;t have to worry about how long car might be left. let's face it, most of the winter, the weather is too band and at least half the rest of the time in December I'm too boozed up to drive anyway.

[Taffy66]

D.no said:

They look fantastic, but they're £750

That's a bargain for a Lithium-ion battery. Check out Braille or Litebox prices if you don't believe me. Fitting an Antigravity battery to any Porsche GT or even better to any Ferrari is a total no brainer.

[blaine54]

RC1 said:

try a few times and make sure you booster has ample charge and the clip is correctly located onto the charging point. the clip must contact with the brass plates on the charging point.

i had to do it a few times but it did work in the end.

Like wise....I had to move the connections around a bit before I could get any power in. But once you get a good connection the bonnet button will pop...good luck!