98-02 Mercedes Key Fob Battery Replacement - EASY DIY

You need 2 - 2025 batteries - amzn.to/38o5BKu
Here is a quick little demonstration on how to change out the dead or weak 2025 battery in your dead or dying Mercedes Benz key fob. This fit most models from 1998 - 2002. There is a full list below. Hope you found this video helpful!
FCC ID IYZ 3302
Part#
3302
MARQUARDT 3302
CAN 6960 208 766 03 06
2701102345
Dealer part #
Buttons 3: Lock, Unlock, Panic
Frequency 315 MHz
Battery Type 2: CR2025
OEM Mercedes Benz 3 Button FCC ID IYZ 3302 IYZ3302 1YZ3302 1YZ Keyless Remote Entry Clicker Control Transmitter Keyfob Vehicle Car Fab FOB w/ New Key - 3 btn Pre-Owned 275C1o
Mercedes C230
Years: 1998 1999 2000
Mercedes C280
Years: 1997 1998 1999 2000
Mercedes C43
Years: 1998 1999 2000
Mercedes CL500
Years: 1998 1999
Mercedes CL600
Years: 1998 1999
Mercedes CLK200
Years: 1998 1999 2000 2001 2002
Mercedes CLK230
Years: 1998 1999 2000 2001 2002
Mercedes CLK320
Years: 1998 1999 2000 2001 2002
CLK430
Years: 1999 2000 2001 2002
Mercedes CLK55
Years: 2001 2002
Mercedes E300D
Years: 1998 1999
Mercedes E320
Years: 1998 1999 2000 2001 2002
Mercedes E430
Years: 1998 1999 2000 2001 2002
Mercedes E55
Years: 1999 2000 2001 2002
Mercedes S320
Years: 1998 1999
Mercedes S420
Years: 1998 1999
Mercedes S500
Years: 1998 1999 2000
Mercedes S600
Years: 1998 1999
98 99 2000 01 02

[@KeyFobRob]

You need 2 - 2025 batteries - amzn.to/38o5BKu

[@michiservas5781]

lol just replaced mine. there was only 1 battery inside but it was working fine for over a year now (i bought it like that).
suddenly it started to not work. i opened the key and was surprised by only seeing one battery
thx for video

[@leemueller7357]

Thanks so much. I've got a great 2002 C-class, but things change. Batteries run down. Yours were the only RUclips instructions I found aimed at opening older (98-02) key fobs. Bless you -- and RUclips -- for helping an 82-year-old man get back on the road.

[@KeyFobRob]

Glad it helped! Take care

[@clownbabyzz8495]

Hell yea lee get down w your bad self

[@helenav5171]

THANK YOU! I NEEDED THIS TODAY SINCE IM ALONE AND FORGOT HOW TO DO IT 😊❤

[@KeyFobRob]

Glad you could get it sorted out

[@johnagacki5796]

Thank you! Simple and straightforward.

[@KeyFobRob]

Glad it was helpful!

[@basithali1196]

Thank you very much
Was struggling with my W220 key, only your video helped me a lot.

[@KeyFobRob]

You're welcome!

[@vahemarkarian9117]

Very helpful! Thank you.

[@KeyFobRob]

👍

[@rebeccaransick503]

Wow, great info!

[@KeyFobRob]

Thanks for watching!

[@collinwright1172]

Exactly what I needed, thank you!

[@KeyFobRob]

Glad it helped!

[@toyotavenzaguy2499]

Awesome! Helpful.

[@KeyFobRob]

Thanks for stopping in!

[@toyotavenzaguy2499]

@@KeyFobRob No prob!

[@RandomRedd]

Thank you!!

[@KeyFobRob]

You're welcome!

[@RR-lw5de]

Great!! Now if u could only fix my Keurig

[@MommaTwoShoes]

Thanks!!

[@KeyFobRob]

No problem!

[@508homes]

Thank you

[@KeyFobRob]

You're welcome

[@jerseymoon3524]

Thanks so much!!

[@KeyFobRob]

You're welcome!

[@anthony81860]

thanks!!

[@KeyFobRob]

You bet!

[@ericlopez4246]

Thank you!!! Sir👍

[@KeyFobRob]

Glad it helped!

[@bjames6225]

Thanks

[@KeyFobRob]

No problem

[@jagboy69]

Thanks...

[@KeyFobRob]

Welcome

[@fixitFlip]

Easy peasy.

[@KeyFobRob]

Yup!!

[@eleazarthompson8005]

💯

[@KeyFobRob]

Good stuff! Glad I could help

[@smittysez]

Perfect. Thank you !

[@KeyFobRob]

Glad I could help!

[@whiskeydadon37]

Question: does these batteries only help for getting into car? Do the batteries actually help start the car itself? Because I can get into car with keyless entry by hitting unlock but when I put key into ignition it doesn't turn. This is my old key as backup. My new key works fine.

[@ruleanhogue311]

what must i do if after changing the batteries and it does not crank

[@whiskeydadon37]

@@ruleanhogue311 does the key turn at all?

[@northwesthappz5033]

It only unlock the door and lock the door you don't need battery to start

[@kingtrippyblaze2060]

Literally worked immediately. Thank you💯🦾

[@KeyFobRob]

Glad it helped

[@rahmanazam8574]

❤❤❤❤

[@KeyFobRob]

Thanks for stopping in and commenting

[@elmono3939]

Hello, we changed batteries - and now we cannot lock / unlock our car using remote. Do you know how to sync remote back with the car after battery change ? Thx !

[@KeyFobRob]

You likely replaced it with a bad battery. I'd try a different package of battery and see if that helps

[@sushibali6522]

Hey thanks, can I use CR2032 ?

[@KeyFobRob]

Probably not. The 2032 is 3.2mm thick and the 2025 are 2.5mm thick. Maybe in a pinch but go ahead and order up two 2025 batteries - amzn.to/38o5BKu

[@sushibali6522]

@@KeyFobRob ok thanks for your reply didn't expect it on an old video lol!

[@KeyFobRob]

eh, I have a couple hundred fob videos and people ask questions on them everyday so I try my best to answer ones I can

[@KDH901]

I dropped my key in water and key won’t turn. Would this method work???

[@KeyFobRob]

You're probably going to need to open it up and dry everything out. Try putting it in rice if you haven't already

[@flipix5408]

Thanks

[@KeyFobRob]

No problem