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Home >> Mercedes Benz >> 1992 >> 300CE >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Shift Interlock Systems >> Description & Operation >> Parking Lock Operation

Parking Lock Operation

  1. Parking lock interlock interacts with steering lock. Parking lock interlock prevents selector lever from being moved out of "P" position when ignition key is turned to "0" position and brake pedal is not operated.
  2. When ignition switch is turned to "1" position, blocking cam in steering lock releases control cable. When brake pedal is operated, locking lever is turned downward, tension spring at brake pedal is tense and release lever is released. Force of pressure spring overrides lower spring force of pressure spring No. 1 and pulls shift and locking valve in front of blocking cam. Locking pawl turns and lifts off detent plate. Parking lock is now able to be released.