02-21-2021, 07:51 AM | #2 |
///M SubDriver
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Drives: 2017 M3, 2020 X7 40i
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Why did you need to replace the battery in your X7 key fob? I have never heard of that error before, but if you needed to replace the battery in your key fob so early in vehicle ownership, which is pretty rare, that would lead me to believe you might have a defective key fob. Either that or your key fob was damaged some way - like taking a swan dive off a 2 story building and landing on pavement...
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///M3 COMPETITION 6MT - 2017 F80 Smoked Topaz Metallic
BM3 / MP-HAS / GC Camber Plates / Carbonstructure Interior X7 XDrive 40i ///M-SPORT - 2020 G07 Arctic Grey Metallic X3 XDrive 30i - 2019 G01 Mineral White (wife's) / 128i 6MT - 2009 E82 Jet Black (son's) |
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02-21-2021, 08:27 AM | #3 | |
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Went to my car one day and there was no response to the fob. I tried the easiest fix, replace the fob battery. That wasn't it. It was the car battery and car ...... Four weeks later and several new computers later I got the car back. That is why I changed the fob battery. |
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02-21-2021, 08:50 AM | #4 |
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BMW had a bad batch of fob batteries in 2019. Many of us with 2019 G05 replace the batteries as a precaution. Apparently the coin batteries in the fob sat around the warehouse for several years and were not at full strength when installed new.
The OP has a sensor problem for sure. |
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02-21-2021, 06:54 PM | #7 |
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How long are folks getting out of a key fob battery?
My previous MB with the keyless entry (comfort access in BMW speak), had to have it's fob battery replaced every 2-6 months. Many others on the MB forums have also experienced high battery drain when they have the keyless entry option. This is my first BMW with the comfort access feature so wondering how long the battery will last. My previous non-comfort access BMW key fob battery lasted nearly 9 years. My wife's current X3 which is nearly 6 years old is also still on original key fob battery and doesn't have comfort access. |
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02-21-2021, 10:56 PM | #8 | |
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2023 840GC | 2021 740i | 2019 X3
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