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12-16-2012, 12:14 PM | #23 |
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A fully charged battery is 12.6V. How long it will hold that charge without running the car is the more interesting measurement.
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12-17-2012, 06:31 AM | #24 |
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Strange, Ever since this post last Wed. the car everytime I unlocked it would turn on the taillights and angel eyes like normal...this morning I go out to unlock the car and no taillights/angel eyes again. I do have an appt with BMW this morning, I'll see what they say
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12-17-2012, 06:36 AM | #25 | |
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12-17-2012, 03:47 PM | #26 |
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So I head out to run an errand and then the car barely starts and i get a SES (INCREASED EMISSIONS)...I take it to BMW and the car won't even start once I get into the bay. Turns out for sure it is the battery, big problem though....Nationwide battery shortage, at earliest I'll get my car back (with the new battery) on Thursday, although it could take til next week or later...damn
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12-17-2012, 04:17 PM | #27 |
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Just got mine back with a new battery after waiting 10 days...I was fortunate, when my car was towed in (wouldn't start even with a jump), they had someone who had been on the waiting list for a battery for 19 days. 6 weeks ahead of warranty expiration too...
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12-22-2012, 12:27 PM | #28 | |
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Happened to me also...
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12-27-2012, 10:43 PM | #29 | |
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01-02-2013, 05:51 PM | #30 |
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I have 57K miles. My clock lost 10 minutes over the weekend. My radio was muted every time I started the car. A couple of times when I shut off the engine, it immediately powered down all other electronics and refused to reboot for more than a few seconds.
A local dealer (Sterling) replaced to for $375. Everything is normal again. Just an FYI.
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01-02-2013, 05:58 PM | #31 | |
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Come over here and I'll do it for $900. I bought a new battery for under $200 (same rating as OEM) and got my coded. These BMW's have had the same feature since the E65 or E60. You guys really think that they are all running OEM batteries? No. Heck, most of them probably didn't get the battery adaptation reset either and they are fine.
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01-02-2013, 08:33 PM | #32 | |
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01-07-2013, 02:39 PM | #33 |
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As OP said, Is my battery about to die?
...I didn't drive my car for a week and now requires clock resets every time I start it. Also, the keyless access entry balks, requires keyfob button push. Engine start is fine and no probs with radio presets tho prob stored in key each time. Does it HAVE to be a BMW battery replacement? How about good ole Interstate, etc.?
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01-07-2013, 02:57 PM | #36 | |
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And what is a "reset"? I''m still thinking of getting top-tier but "regular" battery...
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02-02-2013, 01:03 AM | #37 | |
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I have a P3 gauge, and one of the readings is for battery voltage. I notice while driving that it fluctuates between 14.2-14.5V. It drops into the 11s and 12s when pulling away from a stop for some reason. |
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02-02-2013, 06:58 AM | #38 |
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I suspect my battery is flaking too. My seatbelt butlers hardly extend on a cold start but are fine after that. I've heard that the computer will skip various "turn-on" functions to save power. How it chooses what to skip is beyond me. Going to test my bat this morning and will report back.
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02-02-2013, 11:28 AM | #39 |
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LOL a grand for a battery and "labor"!
My 911 needed a new battery once. I took it to the dealer and they tried to charge me 150 for the battery and 150 for labor! I saw the guy put in the battery (3 minutes). I told them to take out the battery and I would put it in myself. They capitulated and just charged me for the battery. |
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02-02-2013, 08:15 PM | #41 |
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With the rpm up, the alternator is working. Looks like the battery is failing though. Fully charged is 12.6, 75 percent is 12.4, 50 percent is 12.2. If it won't hold the charge your alternator is giving it chances are pretty good it is failing. Test it with the engine off.
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02-03-2013, 11:20 AM | #42 |
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I had to replace mine. I did it in a BMW dealership and was between 300 and 400. I dont remember exactly.
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02-04-2013, 11:15 AM | #43 | |
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I picked up the same AGM Diehard battery Sean05 picked up for $165.xx w/core exchange, so after I get the BT tool sometime this week, I'll go ahead and install it. For those that don't want to install yourself, Sears charges $19.99. For the price of picking up an OEM battery from the dealer and having them code it, you can pick up the Sears battery w/installation and the Bavarian Technic Enthusiat's Kit and *still* come out ahead. The latter is obviously a much better choice, IMO. Last edited by whats77inaname; 02-04-2013 at 11:21 AM.. |
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02-05-2013, 03:35 AM | #44 |
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My '09 E92 (37k miles) was showing signs of weak battery the past week. i.e. "Battery Charge Very Low!" While ignition still on when at gas pumps.
3x in the past week, clock resets to 00:00 while getting a warning on the display. Angel n tail lights doesn't come on after remote unlock. Had it replaced by a BMW specialist (3rd party)2 hours ago. According to them, battery was at 45% and was showing signs of leakage at the terminals. (I forgot to ask them to show me the old battery ) Took them 30mins while I waited, and labour + parts (AGM Battery 90ah)= $488.90. It's all good now oh and they also checked the alternator and its working fine. So it's just the dying battery. I think the next thing I need replaced is my AC evaporator. It's hasn't been very cold for awhile, they quoted me $1'570 and 2 days in the shop. Apparently the whole dash has to removed, labour intensive stuff. I'll get that fixed in the near future. Hope this helps! Last edited by pOKa; 02-05-2013 at 04:17 AM.. |
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