System functions: Interlock

E53, E83 and E60, E61, E63, E64 up to 09/2005: The ignition lock is mechanically linked to the selector lever by a Bowden cable (as on the E38). The interlock only allows the ignition key to be removed when the selector lever is in position P. Conversely, the selector lever can only be moved from position "P" when the ignition key is in the ignition lock and turned at least to ignition ON.
E65, E66: The remote control can only be removed when the CAS registers a road-speed signal of less than 1 km/h.
If the remote control is removed from the insert compartment after the engine has been switched OFF, the parking lock will automatically be applied.
E87, E90, E91 and E60, E61, E63, E64 from 09/2005: The selector lever is locked in position P by an electromagnet when terminal 15 is OFF. When the remote control is not in the insert compartment, the selector lever is locked in position P. When terminal 15 is activated, the EGS control unit applies current to the electromagnet and the selector lever is released. A microswitch registers the locking or unlocking of the selector lever. The microswitch transmits a signal to the CAS (Car Access System) to enable the remote control.
- Interlock without convenience access
  If the selector lever is not engaged in position P, the remote control cannot be removed from the insert compartment. The selector lever is locked when the selector lever is in position P and the ignition is OFF. The remote control can be removed.
- Interlock with convenience access
  The engine and terminal 15 (ignition) can only be switched off when the selector lever is in position P.