decorily

I am planning on keeping a spare key fob in the car in case I ever loose my key that I carry. Having keyless access and start I need the spare key to be disabled while in the car. Should I take the battery out or is there another way to temporarily disable it?

JM-GLC

Page 84 of the Operator's Manual says, "If you do not intend to use a SmartKey for an extended period of time, you can deactivate the KEYLESS-GO function of the SmartKey. The SmartKey will then use very little power, thereby conserving battery power". It then lists instructions on how to disable and re-enable it.

decorily

RTFM!!

fabbrisd1

Please remember - when you re-activate the fob - you need to pull the Keyless Start button and use the fob to start the MB once like a regular MB - so that the MB "re-recognizes" the key - after you have done that once - then you can use Keyless-Start/Keless-Lock/Unlock with that key again...

Keep the beat !

JM-GLC

Under the Deactivating and activating SmartKey section, the Owner's Manual says:

To activate:
Press any button on the SmartKey.

or


Insert the SmartKey into the ignition lock. KEYLESS-GO and all of its associated features are available again.

guido3

Here's your answer, I think:

http://www.benzblogger.com/2015/01/mercedes-benz-keyless-go-smartkey-on-and-off.html

decorily

This is indeed my answer!!


Now all I have to do is find a safe hiding place for the key in the car....any suggestions?

Bernie51

What am I missing? How would you get into your car if you lost the one key fob and have the other locked in the car?

ec_nova

you wouldn't, unless you have the app. This thread was about disabling a smartkey's transmitting feature, so as to preserve battery life of the key. All 2015 and up have this ability (if equipped with keyless go)

Bernie51

you wouldn't, unless you have the app. I presume you're referring to mbrace which is not available in Canada. I have no idea if mbrace or similar app is available in Ireland.

decorily

My car can be unlocked online so in the event of losing a key I can simply unlock from my phone and access the key (hidden in car) enable it by pressing any button and start the car.

Bernie51

Thanks for the clarification.