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Andyc11
Monza


Joined: 22 Apr 2013
Posts: 223
Location: Manchester


PostPosted: Tue Aug 08, 2017 2:00 pm    Post subject: Flat battery? Reply with quote

Went to start my GTS this morning and noticed window was very slow to go down when opening the door. When trying to start, lots of clicking and flashing but no cranking at all. Leave the key in the ignition and turn (but not starting) and get a reduced power, abs and pasm message. Assume (hoping!) this is flat battery.

If so, would a ctek do anything (been meaning to buy one for weeks as doing very limited mileage at the moment), or is it just best to bite the bullet and get OPC to sort?
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997.2 GTS
 
  
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toffeeman
Monza


Joined: 05 Mar 2009
Posts: 165



PostPosted: Tue Aug 08, 2017 2:49 pm    Post subject: Reply with quote

A Ctek charger is a fantastic piece of kit for your car so I'd get one anyway. You can give it a go to see if it will recover your battery as it has reconditioning modes and all sorts. If it doesn't work then you'll have a charger in place ready for a new battery.
 
  
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Andyc11
Monza


Joined: 22 Apr 2013
Posts: 223
Location: Manchester


PostPosted: Tue Aug 08, 2017 2:50 pm    Post subject: Reply with quote

Thanks, realised they're a decent purchase so ordered one. Fingers crossed it will sort!
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toffeeman
Monza


Joined: 05 Mar 2009
Posts: 165



PostPosted: Tue Aug 08, 2017 2:53 pm    Post subject: Reply with quote

Andyc11 wrote:
Thanks, realised they're a decent purchase so ordered one. Fingers crossed it will sort!


What model did you order?

I have the MX5.0 as I got it for my previous car, an E92 M3 which had an AGM battery. The MX5.0 covers multiple types of battery but Ctek have loads of models available. I have no idea what type of battery 911's have. Question
 
  
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Andyc11
Monza


Joined: 22 Apr 2013
Posts: 223
Location: Manchester


PostPosted: Tue Aug 08, 2017 2:56 pm    Post subject: Reply with quote

Got the MXS 5.0 - I've seen other 997 owners have used this and all fine.
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MisterCorn
Zolder


Joined: 08 Jan 2011
Posts: 5387
Location: Nottingham, England

2004 Porsche 996 Turbo

PostPosted: Tue Aug 08, 2017 3:03 pm    Post subject: Reply with quote

That should do it, just be aware that if your battery has been flattened it could well be damaged and might not last all that long.

MC
 
  
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Andyc11
Monza


Joined: 22 Apr 2013
Posts: 223
Location: Manchester


PostPosted: Tue Aug 08, 2017 3:24 pm    Post subject: Reply with quote

MisterCorn wrote:
That should do it, just be aware that if your battery has been flattened it could well be damaged and might not last all that long.

MC


Agreed, hopefully the ctek will at least get me mobile again and with some reconditioning may extend the battery, but it's 6 years old now so maybe just time for a replacement anyway.
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DucatiRob
Suzuka


Joined: 22 Jul 2015
Posts: 1231
Location: Milton Keynes

2006 Porsche 997 Carrera 2S

PostPosted: Tue Aug 08, 2017 3:46 pm    Post subject: Reply with quote

Sounds like your battery has gone or is on its way out, or maybe the dreaded cable over the engine to the starter motor. There are usually signs that the battery or cable are on their way out with sluggish starting from, particularly when hot!
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Andyc11
Monza


Joined: 22 Apr 2013
Posts: 223
Location: Manchester


PostPosted: Tue Aug 08, 2017 3:53 pm    Post subject: Reply with quote

Thought it seemed strange there was no cranking at all and just a clicking noise when trying the ignition. Lots of light flashing and failure messages so in a way, hoping it's just the battery. Anyone any experience of this? Is it normal for a flat battery?
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997.2 GTS
 
  
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MisterCorn
Zolder


Joined: 08 Jan 2011
Posts: 5387
Location: Nottingham, England

2004 Porsche 996 Turbo

PostPosted: Tue Aug 08, 2017 6:35 pm    Post subject: Reply with quote

Andyc11 wrote:
Thought it seemed strange there was no cranking at all and just a clicking noise when trying the ignition. Lots of light flashing and failure messages so in a way, hoping it's just the battery. Anyone any experience of this? Is it normal for a flat battery?


Yes it is normal.

MC
 
  
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997man
Silverstone


Joined: 14 May 2015
Posts: 137
Location: West Yorkshire

2008 Porsche 997 Carrera 2

PostPosted: Tue Aug 08, 2017 7:05 pm    Post subject: Reply with quote

Check the cells of the battery - enough water/acid ?

I had a couple with low levels - topped up with the correct de-ionized water, CTEK recondition program applied - not had an issue since.
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Andyc11
Monza


Joined: 22 Apr 2013
Posts: 223
Location: Manchester


PostPosted: Tue Aug 08, 2017 7:19 pm    Post subject: Reply with quote

997man wrote:
Check the cells of the battery - enough water/acid ?

I had a couple with low levels - topped up with the correct de-ionized water, CTEK recondition program applied - not had an issue since.


Thanks, thought of that earlier watching a YouTube vid on the ctek. Any ideas on what de-ionized water is needed or just any?
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toffeeman
Monza


Joined: 05 Mar 2009
Posts: 165



PostPosted: Tue Aug 08, 2017 8:39 pm    Post subject: Reply with quote

Andyc11 wrote:
997man wrote:
Check the cells of the battery - enough water/acid ?

I had a couple with low levels - topped up with the correct de-ionized water, CTEK recondition program applied - not had an issue since.


Thanks, thought of that earlier watching a YouTube vid on the ctek. Any ideas on what de-ionized water is needed or just any?


Halfords sell it in 1L and 5L tubs at £1.79 and £3.50 respectively.
 
  
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HarryH
Montreal


Joined: 13 Dec 2008
Posts: 586
Location: The Shire


PostPosted: Tue Aug 08, 2017 9:26 pm    Post subject: Reply with quote

Clicking noise instead of cranking is absolutely the normal situation on many cars if the battery is flat - from your description I'd be very confident a new battery will fix it.

At 6 years old your battery doesn't owe you anything - I'd say charge it up with the Ctek to get you started but change it for a new one asap. Buy online if you don't have to have the Moll (for warranty reasons although this is also debatable). Last one I got was the Varta Silver F18/110.

Ten minute job to fit it, as long as you remember to turn the key to position 1 before disconnecting (so the alarm doesn't go off a few inches from your head and make you poo your pants). Also expect to get a call from the tracker company within a few minutes as their system detects the battery disconnection.

By the way my Ctek is the 3600 which is fine, so if you have gone for the more powerful 5 then it will be more than up to the job.

Cheers
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2004 996.2 Targa Tiptronic S - sold
(Warning - capabilties of car far exceed those of driver)
 
  
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G2
Spa-Francorchamps


Joined: 26 Oct 2015
Posts: 336



PostPosted: Tue Aug 08, 2017 10:42 pm    Post subject: Reply with quote

word of caution. Get the battery checked even if the cteck revives it. If a cell is damaged it can lead to a leak or gass discharge issue when charging.

As stated above, a moll battery at 6 years old is above average age already Smile

The Christmas tree lights and abs/pasm warnings should clear once you have started and driven it a short distance.
 
  
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DJS911
Newbie


Joined: 13 Feb 2017
Posts: 44



PostPosted: Wed Aug 09, 2017 9:31 am    Post subject: Reply with quote

Andyc11 wrote:
Thought it seemed strange there was no cranking at all and just a clicking noise when trying the ignition. Lots of light flashing and failure messages so in a way, hoping it's just the battery. Anyone any experience of this? Is it normal for a flat battery?


Just had exactly these symptoms after my car sat unused for best part of three weeks. An overnight charge and all was ok other than I initially had PASM and SPORT failure messages. A drive of less than half a mile reset everything though.
 
  
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Andyc11
Monza


Joined: 22 Apr 2013
Posts: 223
Location: Manchester


PostPosted: Sun Aug 20, 2017 6:12 am    Post subject: Reply with quote

Quick update, Porsche Assistance sent the AA out who confirmed battery shot. Got it going, but said it won't start again. Could have fitted a higher spec battery for £178, but a quick call to my OPC confirmed that at warranty renewal time they'd reject and would still have to fork out for them to fit and supply. Car driven to local OPC and wouldn't start again. £399 later and my CTEK leads fitted to new battery, all sorted.
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Paul Farrar
Trainee


Joined: 20 May 2005
Posts: 72
Location: Thruxton, Hants


PostPosted: Sun Aug 20, 2017 7:45 am    Post subject: Reply with quote

Andyc11 wrote:
Quick update, Porsche Assistance sent the AA out who confirmed battery shot. Got it going, but said it won't start again. Could have fitted a higher spec battery for £178, but a quick call to my OPC confirmed that at warranty renewal time they'd reject and would still have to fork out for them to fit and supply. Car driven to local OPC and wouldn't start again. £399 later and my CTEK leads fitted to new battery, all sorted.


The OPC may not like your CTEK leads fitted to the battery at warranty renewal time either........
_________________
currently:
997 Gen 2 Carrera S - 2010 (59) - GT Silver - Manual
previously:
993 Carrera S - 1996 (P) - Zenith Blue - Manual
993 Carrera 2 - 1993 (L) - Polar Silver - Manual
944 Turbo - 1990 (G) - Panther Black - Manual
 
  
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Andyc11
Monza


Joined: 22 Apr 2013
Posts: 223
Location: Manchester


PostPosted: Sun Aug 20, 2017 9:02 am    Post subject: Reply with quote

Paul Farrar wrote:
Andyc11 wrote:
Quick update, Porsche Assistance sent the AA out who confirmed battery shot. Got it going, but said it won't start again. Could have fitted a higher spec battery for £178, but a quick call to my OPC confirmed that at warranty renewal time they'd reject and would still have to fork out for them to fit and supply. Car driven to local OPC and wouldn't start again. £399 later and my CTEK leads fitted to new battery, all sorted.


The OPC may not like your CTEK leads fitted to the battery at warranty renewal time either........


Hope they don't like them, they fitted them on my request!
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Paul Farrar
Trainee


Joined: 20 May 2005
Posts: 72
Location: Thruxton, Hants


PostPosted: Sun Aug 20, 2017 5:26 pm    Post subject: Reply with quote

Andyc11 wrote:
Paul Farrar wrote:
Andyc11 wrote:
Quick update, Porsche Assistance sent the AA out who confirmed battery shot. Got it going, but said it won't start again. Could have fitted a higher spec battery for £178, but a quick call to my OPC confirmed that at warranty renewal time they'd reject and would still have to fork out for them to fit and supply. Car driven to local OPC and wouldn't start again. £399 later and my CTEK leads fitted to new battery, all sorted.


The OPC may not like your CTEK leads fitted to the battery at warranty renewal time either........


Hope they don't like them, they fitted them on my request!


As I said, may not like them. Different OPCs...different postures..!
_________________
currently:
997 Gen 2 Carrera S - 2010 (59) - GT Silver - Manual
previously:
993 Carrera S - 1996 (P) - Zenith Blue - Manual
993 Carrera 2 - 1993 (L) - Polar Silver - Manual
944 Turbo - 1990 (G) - Panther Black - Manual
 
  
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