GolfGTIforum.co.uk
Model specific boards => Golf mk8 => Topic started by: Exonian on 27 November 2022, 22:56
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23.5 months in and my second key battery is about to throw in the towel (according to the dash binnacle every time I start the car).
The first one lasted a fair bit longer than the Duracell replacement.
Is anyone else suffering sudden key battery mortality syndrome?
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I think it’s not unusual with “keyless” cars, I seem to remember getting the low battery warning in my MK7 at around the 12-14 month mark. I haven’t had it yet on the MK8 (15 months old).
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Changed mine for the 1st time a few days ago after approx 18months of ownership. Message to change it had been on for a couple of weeks. Original was a Panasonic battery, perhaps the Duracell will last longer.
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Is the type of battery and way to change battery on key fob similar to the MK7 Golf key fob?
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I had a keyless Discovery, fob battery needed changing every 2 years.
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Had the ‘replace fob key’ warning on the instrument display in my 2020 Polo GTI+ a couple of weeks ago. Replaced the original Panasonic CR2032 with the Duracell CR2032 I had kept in the car just in case the fob battery completely died on me unexpectedly. Car was 26 months old when I replaced the battery and it has keyless entry.
On the previous four VW’s I’ve owned (none had keyless) the original fob batteries outlasted my ownership of the cars, and I owned each of them for around 4.5 years.
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Is the type of battery and way to change battery on key fob similar to the MK7 Golf key fob?
Yes, same battery and similar way to change it. The fob itself is different so you have to ‘eject’ the key blade via a hidden button and use it to lever the cover off. You also have to be careful it all goes back in exactly as you found it or the blade doesn’t slot back in tightly if the spring clip isn’t 100% in the right place. If the blade isn’t in properly it’ll come adrift from the rest of the fob in your pocket or bag eventually I’d imagine.
(https://i.postimg.cc/430d06HF/348-D1319-9-B64-4-EC4-8266-D094-CE281578.jpg) (https://postimg.cc/R3c46nRc)
The pic shows how the blade sits if the spring clip isn’t seated correctly.
I used the spare key to compare and ensure the blade went back in tightly after taking that pic.
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I think my first one lasted 12 months almost to the day and I suspect the one I replaced it with won't last any longer.
Also, both the key I use and the one I don't both died at the same time...
I seem to remember reading a VW technical note that the new keyless system is so lower power that the battery will last 10 years :grin: :grin: :grin: :grin: :grin:
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Mine flashed up for the first time today. 18 months in.
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Not for the Mk8 but I tended to use the Energizer cell batteries, found them to be far better than Duracell.