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26th November 2014, 17:54 | #1 |
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New battery
Sorry guys if this has been asked before, I have searched the forum for an answer, but with no success.
Can I fit a 110 size battery to our cars, or has someone done it? I've noticed the dimensions of a Bosch S5 (with a whopping 85Ah and 800 CCA rating) to be 315mm long, 175mm wide & 175mm high. At first glance it looks like it will fit, but the securing strap wont (I don't think) as it's slightly longer and the bolt/hole would not line up. The reason I'm looking for a 'big' battery is my diesel seems very prone to running it's battery down. I've had the alternator checked, and I've had a good look around for loose connections. The sat nav shuts down ok and once started with a booster pack will happily restart for days, or weeks later. Then one morning - dead. The battery I've got is probably about 4-5 years old, is a 096 standard fit which I think is a bit small on the Ah and CCA side as the same engine fitted to a 3 series BMW of the same age has a higher recommended battery rating. Any thoughts? |
26th November 2014, 19:30 | #2 | |
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I don't think that your problems are due to the battery. You probably have a constant drain. Have you measured what it is with a multimeter? Have you checked the glow plug module (flooded plenums cause damage)? Another possibility might be frequent use of the car for very short journeys (this will run any battery down). Simon
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26th November 2014, 23:13 | #3 |
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Fitting a slightly higher capacity battery is treating the symptoms not addressing the cause. An 096 is a meaty battery so if it is flat there is definitely a drain on it from something. Measure the current drain which should be around 12mA after 20 mins when all systems have gone to sleep.
Last edited by capese21; 26th November 2014 at 23:18.. |
27th November 2014, 16:39 | #4 |
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Ok thanks guys, will check the battery this week end. It's very strange as it will run ok for weeks, then, will just click next morning with no obvious reasons and won't start! Even left it at airport car park couple of years ago in mid winter, came back to find about an inch of ice/snow all over it, took some time to get in and then it fired up first time! Have had problems like this for some years, then the alternator was pronounced dead, changed that and new battery but the 'I'm going to catch you out one morning for no reasons and not start' problem has never really gone away. Plenums are checked and clear. No moisture in ECU nor the relay. Left car at station the other morning (7am) came back at 6pm to find it totally dead, the doors would not even unlock and when got door opened not even enough juice to power the interior lights nor the red flashing light on the IPK!! Breakdown service jump started it, and has ran ok for past two mornings ( didn't take battery off to charge....should I have?)
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27th November 2014, 18:43 | #5 | ||
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Quote:
Quote:
Simon
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27th November 2014, 18:49 | #6 | |
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It is likely to have been something draining the battery, when the car is switched off, from the beginning. As previously advised, check the current drain after the car has been parked up for ten minutes, then remove fuses one at a time, to find the culprit. |
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