Tie Rod: Service and Repair
WM 487919 Removing and installing tie rod
Tools
Preliminary work
Preliminary work for removing and installing tie rod
1. Remove wheel. -> 440519 Removing and installing wheel - section on "Removing" Removal and Replacement
Removing tie rod
Information
- The pictures shown in this document may differ from the original.
- However, this does not affect the validity and relevance of the pictures.
1. For easier removal of the outer tie rod joint, swivel the relevant wheel bearing housing so that the tie rod is fully extended. Remove the outer tie rod joints using ball joint puller T10187 ( => Loosening tie-rod ball (shown as an example) ). When pressing out, screw lock nut on flush (protects the ball joint thread).
Loosening tie-rod ball (shown as an example)
2. Right tie rod:
Remove fastening screws -1- on the heat shield -2- near the joint boot -3- of the right tie rod.
Heat shield for right tie rod
3. Pull out heat shield -2-.
4. Remove small clamp -arrow- on joint boot using assembly tools for spring-band clamps Nr.72.
Small clamp on tie-rod joint boot (shown as an example)
5. Cut open and remove large clamp -arrow- on joint boot using side cutters.
Large clamp on tie-rod joint boot (shown as an example)
6. Carefully pull the joint boot => Loosening joint boot (shown as an example) outwards until the axial joint is accessible.
Loosening joint boot (shown as an example)
7. Remove axial joint -arrow- from the steering rack using open-jawed wrench insert a/f 38 Nr.95-2 for torque wrench and remove the complete tie rod.
Removing axial joint (shown as an example)
Installing tie rod
Information
- The pictures shown in this document may differ from the original.
- However, this does not affect the validity and relevance of the pictures.
Information
- The tie rods are delivered preset as an assembly (tie rod/tie rod joint).
- If the joint boot is to be used again, before installing inspect for wear (cracks, slits) and check that sealing surfaces are clean.
- Carry out a close visual inspection of all parts.
- When fitting the ball joints, ensure that the bevel pinions are clean! Remove dirt or grease on bevel pinions, e.g. with a lint-free cloth. Do not use cleaning agent/solvent.
- Observe correct tightening torques. -> 4X00IN Tightening torques for steering [1][2]Specifications
1. During installation, fit new sealing rings -arrow- on the steering gear. Take care not to damage the sealing ring when fitting the joint boot.
Sealing ring on steering gear (shown as an example)
2. Fit tie rod. => Axial joint on tie rod (shown as an example) -> 4X00IN Tightening torques for steering [1][2]Specifications
Ensure that no damage (scoring or similar damage) is caused to the steering rack.
Axial joint on tie rod (shown as an example)
3. Fit joint boot (not twisted) and secure with new clamps => Large clamp (shown as an example).
Fit the small clamp using assembly tools for spring-band clamps Nr.72 if necessary.
Small clamp on tie-rod joint boot (shown as an example)
4. When fitting the joint boot on the steering gear, make sure that the boot is not twisted.
Fit the joint boot using a new clamp => Large clamp (shown as an example).
The arrow denotes the clamp lug.
Large clamp (shown as an example)
5. When fitting the large clamps, it is essential to observe the following installation position (right/left).
The clamps must be fitted at the correct position.
Place pliers for hose clamp Nr.74 on the clamp lug and lightly clamp => Fitting large clamp (shown as an example).
It should still be possible to turn the clamps easily.
Check the position of the clamp once more, correcting if necessary, and then compress the clamp lug fully.
Fitting large clamp (shown as an example)
6. The clamp on the left joint boot must be clamped on the steering gear so that the clamp lug -arrow- is in line with the steering shaft!
Failure to observe this can lead to constrictions in the area of the supply and return lines.
Left installation position of large clamp (shown as an example)
7. The clamp of the right joint boot must be clamped on the steering gear so that the clamp lug -arrow- points horizontally with the front axle carrier (suspension subframe) in direction of travel.
Failure to observe this can lead to constrictions in the area of the heat shield.
Right installation position of large clamp (shown as an example)
8. Right tie rod:
Fit heat shield -2-.
Fit fastening screws -1- on the heat shield -2- near the joint boot -3- of the right tie rod.
Heat shield for right tie rod
Subsequent work
Subsequent work for removing and installing tie rod
1. Fit wheel. -> 440519 Removing and installing wheel - section on "Installing" Removal and Replacement