hyperion667

My key fob battery told me to go F myself so I changed it out....
so easy and takes the 3 volt 2025 battery chip......(instructions in the manual!)
I predict you guys will get it too soon, don't let the dealer do it.....

happy new year

BenzV12

Good job, here is a couple of video links as well

https://www.youtube.com/results?sear....1.M-VbCaKpuO8

eagle_lex

definately SUPER easy. youtube videos helped. these seem to die fairly quick.

Tomspo04

My wife's just did the same. I've had the fob sitting on the end table waiting for a battery for a week. Guess I should get off my **** and get one.

RSIKR

The CR2025s have about a ten year life expectancy when not in use, so if the car is a couple years old it would be prudent to have them on hand. I have bought name brand ones for as little as $3.99 for a two pack.

SnakeDoctor

I actually had an issue with them dying too quickly, as in a few months and it would tell me to replace the battery. The dealership informed me that it was a known issue with some keys, so they replaced mine.

BenzMan369

Funny you should mention this Hype.

I began getting the same Change Key Battery warning recently, but there were no operational issues. It suddenly dawned on me that, although I always carry both keys on me, somehow the system may have been detecting a weak battery even with the good battery key present.

Sure enough, I kept one key out of range and then the other. One of the keys had a weak battery.

Interesting to me that the system is able to detect the bad battery even when it's getting a simultaneous good signal from the other battery.

Lucky me, I caught a sale on Duracell 2025's at the local Giant Market: $2.99 for a two-pack, plus a $1 mfgr.s coupon. Whew! I would hate having to keep the car parked while I waited for a key battery sale!!

RSIKR

Or have to buy one for $5.99 from a drug store or $10 at the dealer.

If your battery is dead you can unlock the car or trunk with the mechanical key that is hidden in the fob.

You can start your car by putting the electronic key in the ignition with a dead key battery. If you have P2, remove the start button and put the electronic key in.

hyperion667

haha, seems I wasn't too far off......
I think I paid about 7 for two of the batteries.....
can't believe the dealer would take ten dollars for something
a 6 year lod could do haha....

and yes Rsikr, I was horrified to even think about using the real key LOL

petee1997

Do you wear a belt and braces? You obviously are not a high risk taker.

Arrie

10 posts about changing the remote key battery!?!

Holidays must have been BORING!!!!!

Happy New Year to ALL anyway!!!!

rufmb

At least this was useful; I got several responses for a useless plastic $30 tow-hook replacement cover.
Hopefully someone will start a thread on their 600hp Brabus conversion soon.

Arrie

What part of this was useful? Battery change for the key fob is in the manual (Changed batteries on three key fob's already). Missing tow-hook cover is not.

What to know about the tow hook cover is that the little very flimsy tether does not keep it. If for any reason the cover is knocked off of the position it will fly away if at highway speed. The covers for jack stand positions are the same.

samkimg

SnakeDoc -

I'm currently having issues with batteries dying way too soon. My dealer says it's all in my head, so they replaced the batteries and after I got it back, I got the same error message. Can you tell me the code they used to get it OK'd to replace from MB?

BenzV12

Well, I put my two keys side by side on the table . To make a fair wear tear on the batteries I am using either of them in certain days .

AMG : Mon , Wed , Fri
Mercedes-Benz : Tue, Thu,Sat,Sun

This may sound MB key will have been ahead in use by this time but actually I used AMG one 1st two months constantly and later decided on using both keys this way lol

BTW, it's good to see even a weak battery can start your engine with your electronic key

hyperion667

I was making a prediction mister expert on everything.......and yeah, it's part fun.............from your additude everyday; YOU could use some fun

Arrie

First of all, I'm not an expert on everything. Secondly, I was having FUN with my post!!! Obviously you missed that.

And yes, I have already changed both key fob batteries for my current car. Also changed one of them for my previous car that was only about 7 months old at the time.

hyperion667

yep, I missed it.......
you do have a tendency to be confrontational though........my misunderstanding

BenzMan369

Do you wear a belt and braces?
I'll never tell.

You obviously are not a high risk taker
I've retired from that. Oh the stories I could tell....some of them even true.

BenzMan369

greasykid

Just bought 25 CR2025 on AMAZON for $11 incl shipping. A little over .40 ea.

alanme123

11 months into my car and already one of the keyfob battery is dead. Called my dealer and he said that they will switch out the battery for free. Coincidently I have to bring my car in for the first service so I can just get that done while it is at the dealer. I also asked him to debadge my trunk lid and he even offered to debadge the side "blue efficiency" logos as well for free!

Gotta love my dealership.

rufmb

I know you can order the car without badges, curious to see how the freshly debadged spots appear after a year without exposure to the sun. Pics please when you're done.

alanme123

I actually did not think about that far about the sun.. now you got me worried

hyperion667

good for you man, that's the ticket
I used to get stuff all the time(pens, couple of hats etc)....it's the little things in life right? the battery is an easy one......and makes you feel
technical haha...
is your car blue? and where do you live? somewhere really sunny?
I wouldn't be too worried about a shadow of any sort on the paint......
and if there was couldn't it be buffed out?
badge delete is the way too go

good luck with it