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01-20-2018, 06:12 PM | #1 |
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Battery Replacement
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My Z4 07 3.0si needs a new battery so I picked one up from the dealer today. I searched everywhere on here and on Bimmerfest for a DIY guide to make sure I don't make any mistakes but haven't had any luck. If anyone can link it that will be great. Dealer parts said I don't need to register the batter or anything. Can anyone confirm? Do I just remove the negative then positive then install new one - positive then negative and that's it or is there something extra I need to do. I was going to wait until the spring but it was 65 today and it will be just as nice tomorrow! Thanks in advance. |
01-20-2018, 07:00 PM | #2 | |
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01-21-2018, 02:18 PM | #3 | ||
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It's a thin cable that attaches to the car. |
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01-21-2018, 05:31 PM | #4 | |
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01-21-2018, 06:49 PM | #5 |
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01-25-2018, 03:20 PM | #7 |
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01-25-2018, 06:50 PM | #8 |
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I am going to have to do this soon to my M Coupe,
Hopefully is not complicated for the ///M
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01-26-2018, 12:28 PM | #9 |
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01-27-2018, 12:25 PM | #10 |
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All of the batteries that I had used have a vent hole on either sides, including 3 different AGMs. Some may have a plug on them that you will need to remove in order to install the vent tube.
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01-27-2018, 04:00 PM | #11 | |
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What happens if I don't have the vent plugged in? I drove it a few times. |
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01-27-2018, 04:36 PM | #12 | ||
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01-28-2018, 06:13 AM | #13 |
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Let me ask a few questions. The new battery from BMW should have come with a little bag with a new elbow vent connector and a small plug; did your battery come with the bag of parts? There should be two holes along the edge of the top of the battery case one on each of the short sides. Depending upon orientation of the battery in the car, the vent uses one hole and the other hole is plugged. It's possible that the service/parts department opened the parts bag and plugged the hole in one of the sides already. Just make sure the other vent hole is plugged. Hopefully you bought OE BMW vent tube parts??? And did you orient the partition wall correctly? CarMax even screwed that up on my Z4
If you had to buy new vent line parts, then that tells me the original battery was replaced and whomever did the replacement didn't understand what the vent was for and discarded it, so you've been running "ventless" for however long you've owned the Z4 (and haven't died yet ). This was the situation I had when I bought my Z4 Coupe used from CarMax, the battery had been replaced with the wrong case size - so it just slid around and there was no vent line connected. Batteries are another case for "only trained BMW techs should ever touch a BMW"; well, or a seasoned long-time BMW owner. Something as simple as a battery install will get screwed up. No need to register the battery in the E85/86 Z4.
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A manual transmission can be set to "comfort", "sport", and "track" modes simply by the technique and speed at which you shift it; it doesn't need "modes", modes are for manumatics that try to behave like a real 3-pedal manual transmission. If you can money-shift it, it's a manual transmission. "Yeah, but NO ONE puts an automatic trans shift knob on a manual transmission."
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01-28-2018, 10:21 AM | #14 | |
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How safe is it to drive ventless? |
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01-28-2018, 10:37 AM | #15 | |
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A manual transmission can be set to "comfort", "sport", and "track" modes simply by the technique and speed at which you shift it; it doesn't need "modes", modes are for manumatics that try to behave like a real 3-pedal manual transmission. If you can money-shift it, it's a manual transmission. "Yeah, but NO ONE puts an automatic trans shift knob on a manual transmission."
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01-28-2018, 09:13 PM | #16 |
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When you pulled the old battery the elbow should have come loose from the side of the battery and stayed with the rubber tubing. All you do is plug the elbow into the side of the new battery. Shouldn't need to order a new one.
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02-24-2018, 01:28 AM | #17 | |
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02-25-2018, 06:37 AM | #18 |
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All car cabins are ventilated. The vent tubing is set up to prevent battery acid from spilling into the battery compartment if the battery over charges.
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A manual transmission can be set to "comfort", "sport", and "track" modes simply by the technique and speed at which you shift it; it doesn't need "modes", modes are for manumatics that try to behave like a real 3-pedal manual transmission. If you can money-shift it, it's a manual transmission. "Yeah, but NO ONE puts an automatic trans shift knob on a manual transmission."
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