Mercedes Keyless Go / Entry Key not detected error

Battery suddenly failed in your Mercedes key?
Don't worry!

[@bigbenlorax]

Thanks from Salisbury!

[@gkandoit]

This doesnt fix the problem tho....

[@DavesDiscoveriesChannel]

No (usually just a flat key battery) but it saves you calling for recovery and gets you home

[@jetonsula1429]

What about the new button without key

[@jetonsula1429]

My car does not detect the key