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Home >> Tesla >> 2014 >> Model S Base, AWD >> Repair and Diagnosis >> Steering >> Steering Control Systems >> Steering -- Model S >> Steering Rack And Lower Column >> Steering Rack (RHD Dual Motor) (1st Generation) - Remove And Replace >> Installation

Steering Rack (RHD Dual Motor) (1st Generation) - Remove And Replace: Installation

Installation procedure is the reverse of removal, except for the following:

CAUTION: Replace all nylon-insert locknuts.
CAUTION: Replace all patchbolt(s).
  1. Ensure that the lower intermediate shaft to pinion markings align correctly.
  2. When installing the bolts that attach the steering rack to the subframe, follow this sequence:
    NOTE: Install the steering rack with new bolts.
    NOTE: Make sure to install the shim(s) between the steering gear and the subframe if these were installed previously.
    1. Tighten the LH bolt to 30 N.m.
    2. Tighten the RH bolt to 30 N.m.
    3. Fully torque the LH bolt to 175 N.m.
    4. Fully torque the RH bolt to 175 N.m.
  3. Connect a laptop with Toolbox 3 to the vehicle. See TOOLBOX 3 - CONNECT AND DISCONNECT .
  4. Redeploy the firmware. See Firmware Reinstall - Toolbox .
  5. Unlock the vehicle gateway. See GATEWAY UNLOCK .
  6. Using Toolbox 3:
    1. Select the Actions  tab and search for "EPAS Post Replacement"
    2. Select the ODIN routine PROC_EPAS_X_POST-REPLACEMENT, and then click the link of the routine.
    3. Click RUN  , and allow the routine to complete.
  7. Perform a Lock To Lock-Angle test. See Lock To Lock-Angle Test 
  8. Disconnect the laptop with Toolbox 3 from the vehicle. See TOOLBOX 3 - CONNECT AND DISCONNECT
  9. Refer to the Alignment Requirement tables to determine whether an EPAS alignment check (EC) or four wheel alignment check (AC) is necessary. If performed, add the alignment check/adjust as a separate activity.  See Alignment Requirement - Suspension .