GL 450 (164.871) V8-4.6L (273.923) (2007)
Steering Gear: Description and Operation
GF46.20-P-5138GZ Valve Play Compensation of Rack-and-Pinion Steering, Component Description
GF46.20-P-5138GZ Valve play compensation of rack-and-pinion steering, component description
Component Identification
The play compensator (1) for the rack-and-pinion steering is located in the steering gear housing (2) opposite the drive pinion.
The thrust piece (6c) ensures that the drive pinion (4b) and rack (7) mesh without any play.
Function
Engine ON: Because the hydraulic steering assistance starts immediately, no steering play is noticeable.
Engine OFF: For a lock only a low slightly increasing torque is noticeable over a travel of approx. 50 mm
This is due to the slewing range of the torsion bar in the rotary valve and should not be confused with play in the steering gear. Only when the steering
wheel is turned further does the drive pinion begin to roll across the gear rack, which can be felt on the steering wheel in the form of a slight pressure
point and a more rapidly torque increase.