Overview - Electro-Mechanical Steering Gear: Notes

This overview is valid for both left-hand drive (LHD) and right-hand drive (RHD) vehicles.

Fig 1: Electro-Mechanical Steering Gear Overview

Courtesy of AUDI OF AMERICA, LLC

1. Clamp
   • Always replace if removed
   • Use the CV Joint Boot Clamp Tool to tension the clamp, refer to Tensioning the Inner Clamp 
     NOTE:

     It is not permitted to open the new clamp.

2. Tie Rod
   • 100 Nm
   • Removing and installing, refer to TIE ROD, REMOVING AND INSTALLING .
   • Grease the joint with Power Steering Gear Grease
3. Electro-Mechanical Steering Gear
   • Removing and installing, refer to STEERING GEAR, REMOVING AND INSTALLING .
   • Grease the steering rack with Power Steering Gear Grease Note: There are different types of grease for the left and right.
   • There are different versions.

     A removable heat shield mat was installed on the steering gear at start of production. Be sure to install this mat if installing the old steering gear again.

     A removable heat shield mat on the steering gear was replaced by a bonded heat shield mat as a running change. It is therefore not necessary to take the mat from the old steering gear and installing on a new steering gear.

     A replacement steering gear comes with the bonded heat shield mat.

4. Tie Rod End
   • Removing and installing, refer to TIE ROD END, REMOVING AND INSTALLING .
   • Check dust caps for damage and correct seating
   • Check dimension, refer to Fig 2
5. Nut
   • 80 Nm
   • Counter hold on the tie rod end when loosening or tightening
6. Spring Clamp
   • Always replace if removed
   • Spring clamp, installing, refer to Outer Boot Assembly 
7. Boot
   • Check for damage
   • Always replace if removed
   • Coat the inside of the joint boot seats all the way around and evenly with Power Steering Gear Grease before installing.
   • Check the seat for the boot on the steering gear for damage before installing. If the steering gear housing is damaged, replace the steering gear.
   • Must not be twisted when toe is being adjusted
   • Make sure it is installed correctly, refer to Outer Boot Assembly .
   • Replacing, refer to BOOT, REMOVING AND INSTALLING .
8. Clamp
   • Always replace if removed
   • Use the CV Joint Boot Clamp Tool to tension the clamp, refer to Tensioning the Inner Clamp 
     NOTE:

     It is not permitted to open the new clamp.

9. Tie Rod
   • 100 Nm
   • Removing and installing, refer to TIE ROD, REMOVING AND INSTALLING .
   • Grease the joint with Power Steering Gear Grease
10. Tie Rod End
    • Removing and installing, refer to TIE ROD END, REMOVING AND INSTALLING .
    • Check dust caps for damage and correct seating
    • Check dimension, refer to Fig 2
11. Nut
    • 80 Nm
    • Counter hold on the tie rod end when loosening or tightening
12. Spring Clamp
    • Always replace if removed
    • Spring clamp, installing, refer to Outer Boot Assembly 
13. Boot
    • Check for damage
    • Always replace if removed
    • Coat the inside of the joint boot seats all the way around and evenly with Power Steering Gear Grease before installing.
    • Check the seat for the boot on the steering gear for damage before installing. If the steering gear housing is damaged, replace the steering gear.
    • Must not be twisted when toe is being adjusted
    • Make sure it is installed correctly, refer to Outer Boot Assembly .
    • Replacing, refer to BOOT, REMOVING AND INSTALLING .

Fig 2: Tie Rod End Check Dimension

Courtesy of AUDI OF AMERICA, LLC

• Place a steel ruler -2- on the tie rod end and push it all the way up to the edge -arrow- of the tie rod end -1-.
• Replace the complete steering gear with the tie rod and tie rod end if the check dimension -a- is less than 188 mm.