SmartKey: Difference between revisions

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W220s sold in the US and Canada have a panic button on the SmartKey keyfob. W220s sold elsewhere in the world do not have a panic button.
W220s sold in the US and Canada have a panic button on the SmartKey keyfob. W220s sold elsewhere in the world do not have a panic button.


[[File:W220_SmartKey_with_without_panic_button.jpg|thumb|none|SmartKey without and with panic button.]]
{|
|[[File:W220_smartkey_ECE.jpg|thumb|none|SmartKey without panic button (both sides).]]
|[[File:W220_SmartKey_with_without_panic_button.jpg|thumb|none|SmartKey without and with panic button.]]
|}


Frequencies for central locking are:
Frequencies for central locking are:

Revision as of 23:57, 17 February 2017

SmartKey with remote control

W220s sold in the US and Canada have a panic button on the SmartKey keyfob. W220s sold elsewhere in the world do not have a panic button.

SmartKey without panic button (both sides).
SmartKey without and with panic button.

Frequencies for central locking are:

  • In Europe 433.92 MHz
  • In USA 315.00 MHz
  • (1) Lock button
  • (2) Unlock button for trunk lid
  • (3) Unlock button
  • (4) Panic button

Panic alarm

If panic button is pressed an audible alarm and flashing exterior lamps will operate for approximately 2.5 minutes.

To activate press and hold button (1) for at least one second. To deactivate press button (1) again or insert SmartKey in starter switch.

Replacing batteries

Replacement batteries: Lithium, type CR 2025 or equivalent.

Remove mechanical key (1). Insert the mechanical key (1) in side opening and push gray slide. The battery compartment is unlatched. Pull the battery compartment (2) out of the SmartKey housing in direction of arrow. Remove the batteries.

Using a lint-free cloth, insert new batteries (3) under the contact spring (4) with the plus (+) side facing up. Return battery compartment into housing until it locks into place.

In case of KEYLESS-GO the SmartKey contains only a single battery on the other side.

SmartKey battery replacement.

SmartKey dissected

SmartKey side A.
SmartKey side B.

KEYLESS-GO

KEYLESS-GO SmartKey has only one battery and electronic board contains two coils.

SmartKey with KEYLESS-GO side A.
SmartKey with KEYLESS-GO side B.
Taking MB SmartKey apart.