Member Since: 30 Jul 2011
Replacing the Smart Key Battery
I have got a note on my dash saying the the smart key battery needs replacing.
Is it just a matter of taking the old battery out and replacing it?
Does anything need to be done BEFORE i remove the battery?
Do i go to LR to buy a battery or get one from elsewhere?Mud Flaps - Slimer
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27th Sep 2012 7:33 pm
Member Since: 16 Jan 2012
Location: South Yorkshire
Coin battery from eBay about Â£1 each for Duracell.
Pretty sure it explains how to change them in the manual
27th Sep 2012 7:54 pm
Member Since: 19 Jan 2011
Location: Co. Durham
A little be confused. I have 2008 D3 model and until today I donÂ´t have any problems with the key batteries, only 2 years??
I see in the photo that key in D4 is a little different from D3, there is not release bottom.
Yes, the D3 key fob is a sealed unit with a rechargeable battery soldered in place; induction charging when the key is close to the ignition barrel. As GlosBoy says, one needs to alternate key usage to keep them both charged. I have one original key (7 & 1/2 years use), and one replacement (other lasted about 5 years). I did perform a battery swap on the failed one, but it was the charging circuit that had failed, as the new battery lasted only a few weeks.Time flies like an arrow; fruit flies like a banana
Member Since: 09 Jan 2011
What I do is change keys every two years, and until now almost 5 years without problems.
I know a friend who change battery and and you have to be very carefully to open
Last edited by santiD3 on 24th Jan 2013 11:17 am. Edited 1 time in total
10th Nov 2012 10:36 am
Member Since: 24 Dec 2006
D4 uses a totally different system to D3.
CR2032 battery for D4 is a replacement and not a rechargeable as with D3.
A better system in my view.
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11th Nov 2012 7:33 am
Member Since: 21 Sep 2007
Yup, my warning came on yesterday after 29 months and 24k miles. I use the same fob all the time.
21st Jan 2013 3:12 pm
Member Since: 10 Mar 2008
I just got the "low battery" warning and I'm trying to change the battery. The key looks loke the one from the handbook but it does not open fully. What do I do wrong?
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