Medeco BiLevel

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Medeco BiLevel

Medeco BiLevel
Medeco Bilevel cylinder.jpg
Name Medeco BiLevel
Manufacturer Medeco
Lock Type Cylinder
Lock Design Pin-tumbler, Sidebar
Year(s) Produced 2005 - Present

The BiLevel (or Medeco3 BiLevel) is a pin-tumbler lock manufactured by Medeco. Unlike Medeco's other systems which use axial rotation, the BiLevel uses pin-tumblers and a traditional shear line as the primary locking mechanisms. Medeco advertises the BiLevel for key control rather than security against picking and destructive entry. [1]

The BiLevel is a lower security form of the Medeco M3. It is easily identified by the "m3B" logo to the left of the keyway.

Principles of operation

See also Pin-tumbler (Principles of Operation)

Unlike Medeco's other systems that use axial rotation to properly position pin-tumblers with sidebar legs, the BiLevel uses a sidebar that only interfaces with the M3 slider component. The BiLevel is marketted as a lower security (and cheaper) version of the M3 that can be integrated into existing M3 systems.

Disassembly Instructions

The BiLevel can be disassembled in the same way as a standard pin-tumbler mechanism with consideration for the sidebar and slider components.

  1. Remove the cam or C-clip.
  2. Insert the key and turn the plug 45-90 degrees.
  3. Withdraw the plug from the cylinder. (A plug follower is recommended)


  1. Remove the chamber casings and take out each pin-stack individually
  2. Remove the cam or C-clip.
  3. Withdraw the plug from the cylinder.


The Medeco BiLevel may be vulnerable to one or more of the following:



See also