Keyless entry/go lost

Preston-m3

Active Member
Joined
May 26, 2010
Messages
228
Location
Preston
Car
SL55 AMG. BLACK.
Hi, my SL55 has keyless entry and go but it doesn't work. What's it likely to be? Is it simple to re code to the car if so what does it cost?
Thanks
 

Lyserman

Active Member
Joined
Apr 17, 2013
Messages
581
Location
Taunton
Car
Shanks's Pony (for now)
There are sensors in each door, the boot and the centre console.
It will be highly unlikely that all will have died at the same time.
Do you have two keys or just one?

Getting in on STAR will tell you the fault as it shows any working keys in range.

If the key has died and you have the later keyless go then expect to pay £300 for a new one.
If you have the early keyless go (plastic key) then new keys are no longer available.
 
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Preston-m3

Active Member
Joined
May 26, 2010
Messages
228
Location
Preston
Car
SL55 AMG. BLACK.
Keyless go

Ok thanks. I have the earlier keys. If they are not available what will need to be done to get it working again?
Thanks
 

c63chris

MB Enthusiast
Joined
Mar 14, 2012
Messages
1,279
Location
Sussex
Car
SL63 + BMW 335d Touring
If the convenience battery is low then the car switches off things like keyless go. Won't do any harm to charge that and try again. Also is it enabled in the vehicle settings as you can switch off there.


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