13/07/2023 04:15:42

Steering Rack (LHD Dual Motor) (2nd Generation) (Remove and Replace)

Correction Code 32012252

  • 2023-07-13: Updated post-replacement routines.
This procedure is for vehicles built between April 10, 2016 and April 24, 2019.
See also:
Warning IconA warning icon, calling your attention to a possibly risky situation
Warning
If the vehicle has air suspension, activate "Jack" mode on the touchscreen before raising and supporting the vehicle.

Removal

  1. Remove the front subframe:
  2. Remove and discard the bolts (x3) that attach the steering rack assembly to the subframe (torque 175 Nm).
    Warning IconA warning icon, calling your attention to a possibly risky situation
    CAUTION
    Replace all Patchbolt(s).
    Informational PurposesAn informational icon, calling your attention
    Note
    Record the positions of any shims.

Installation

Installation procedure is the reverse of removal, except for the following:
Warning IconA warning icon, calling your attention to a possibly risky situation
CAUTION
Replace all nylon-insert locknuts.
Warning IconA warning icon, calling your attention to a possibly risky situation
CAUTION
Replace all patchbolt(s).
  • Make sure that the lower intermediate shaft to pinion markings align correctly.
  • When reinstalling the bolts that secure the steering rack to the subframe, follow this sequence:
    1. Tighten each LH bolt to 30 Nm.
    2. Tighten the RH bolt to 30 Nm.
    3. Fully torque the LH bolts to 175 Nm.
    4. Fully torque the RH bolt to 175 Nm.
  • Reinstall the vehicle firmware. See Firmware Reinstall - Touchscreen.
  • Connect a laptop with Toolbox 3 to the vehicle. See Toolbox 3 (Connect and Disconnect).
  • Perform a Lock To Lock-Angle test. See Lock To Lock-Angle Test.
  • Unlock the vehicle gateway. See Gateway Unlock.
  • Disconnect the laptop with Toolbox 3 from the vehicle. See Toolbox 3 (Connect and Disconnect).
  • 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.