Battery's Shot
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Intermediate
Joined: Jul 2005
Posts: 34
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Battery's Shot
Ok - I'm buying a new battery. What's next in terms of when I install. A 2004 Coupe. Am I facing a lot of computer issues? I assume my presets (radio, seat, tire sensors)may be gone etc, but should I anticipate any other issues with the car starting etc etc......I read in one thread where the owner actually removes the battery for charging in the off season so I might have suspected there were no huge issues with a removal.
Reason I ask is the dealer will give me a warranty adjustment - I have 5 months left - but I have to tow the car in. I'd rather go with a "better" battery, and just throw it in myself, but if I'm going to have to take the car in anyway, I might as well get the freebie.
Appreciate any help! Thanks.
Reason I ask is the dealer will give me a warranty adjustment - I have 5 months left - but I have to tow the car in. I'd rather go with a "better" battery, and just throw it in myself, but if I'm going to have to take the car in anyway, I might as well get the freebie.
Appreciate any help! Thanks.
Pro
Joined: Jul 2004
Posts: 710
Likes: 1
From: Fremont (Livin' On The Fault Line!) CA
You should not have any issues at all 
I replaced the stock battery in my 04Z last year with an Optima Redtop and the only thing that was "amiss" was the clock setting (it was off by about 4 hours; roughly the time that I had the battery disconnected).
Engine fired right up without any glitches (no codes or DIC messages); all of my radio presets and my seat memory settings were intact which I thought was amazing...
Oh, if you have activated the security feature on the factory head unit, you may need to have the security unlock code onhand...I didn't encounter any issues with this since I've never set the security code.
Larry
I replaced the stock battery in my 04Z last year with an Optima Redtop and the only thing that was "amiss" was the clock setting (it was off by about 4 hours; roughly the time that I had the battery disconnected).
Engine fired right up without any glitches (no codes or DIC messages); all of my radio presets and my seat memory settings were intact which I thought was amazing...
Oh, if you have activated the security feature on the factory head unit, you may need to have the security unlock code onhand...I didn't encounter any issues with this since I've never set the security code.
Larry
Last edited by LarryW; Mar 3, 2007 at 12:10 PM.
Tech Contributor
Joined: Dec 2003
Posts: 19,384
Likes: 87
From: Horncastle Lincolnshire, England
2023 C5 of the Year Finalist - Unmodified
You should not have any issues at all
I replaced the stock battery in my 04Z last year with an Optima Redtop and the only thing that was "amiss" was the clock setting (it was off by about 4 hours; roughly the time that I had the battery disconnected).
Engine fired right up without any glitches (no codes or DIC messages); all of my radio presets and my seat memory settings were intact which I thought was amazing...
Oh, if you have activated the security feature on the factory head unit, you may need to have the security unlock code onhand...I didn't encounter any issues with this since I've never set the security code.
Larry
I replaced the stock battery in my 04Z last year with an Optima Redtop and the only thing that was "amiss" was the clock setting (it was off by about 4 hours; roughly the time that I had the battery disconnected).
Engine fired right up without any glitches (no codes or DIC messages); all of my radio presets and my seat memory settings were intact which I thought was amazing...
Oh, if you have activated the security feature on the factory head unit, you may need to have the security unlock code onhand...I didn't encounter any issues with this since I've never set the security code.
Larry
Just have the radio code ready if you have a stock radioTake the dead one back and ask for a better battery
