Interior - Noise From Power Seat During Movement
Date: June 17, 2009Order No.: P-B-91.10/145b
Supersedes: P-B-91.10/145a dated Nov. 20, 2008
Group: 91
Revision History
Revision Date Purpose
b 6/17/09 Damage Code Revised
a 11/20/08 VIN Cut-Off and Linkage Protection Strut Installation Added
- 03/11/08 Initial issue
SUBJECT:
Model 171.454/456/473, up to VIN F191914
Equipped with SA Code 275 (Power driver seat with memory) and SA Code 242 (Power passenger seat with memory)
Noise During Fore / Aft Seat Movement
If you receive customer reports in the above model vehicles of noises originating from under the seat when the fore/aft seat movement is actuated, this may be due to a damaged (deformed) linkage between the motor and the seat adjustment track under the seat. Do not replace the electric seat adjuster. To resolve, perform the following procedure.
1. Inspect linkage (Figure 1, C) between the motor (Figure 1, A) and seat adjustment track (Figure 1, B) under the seat for twisting or deformations. Proceed if deformed.
2. Using the power seat controls, move the seat all the way forward and all the way up.
3. Ensure that the cable routing under the seat is correct (refer to WIS document AR91.10-P-3436-01V for cable routing in left and right seats).
4. Remove seat from vehicle as per WIS document AR91.10-P-1000V.
5. Remove flexible linkage (Figure 2, 1) from the motor (Figure 2, 2).
6. Remove the linkage (Figure 3, 1) from the seat adjustment track (Figure 3, 3).
Caution!
Do not move the seat while the linkage is removed. Damage to the seat adjuster will occur.
7. First, install new linkage to the seat adjustment track end (Figure 4). The new linkage will fit tighter into the seat adjustment track. Ensure the linkage has been inserted completely into the seat adjustment track.
8. Then attach linkage to the motor (Figure 5).
Caution!
Exercise care when installing the new linkage. The linkage may be damaged if installed forcefully.
9. Install linkage protection strut (Retrofit in right seats up to VIN...191914)
a. Loosen and remove hold down device for the dust cap on the upper rail on the linkage side (Figure 6).
b. With the hold down device removed, replace the hex bolt with the one provided in the replacement set and tighten to 15 Nm.
c. Remove the rear bolt on the linkage side of the upper rail (behind the bolt removed in step 1)
d. Place the linkage protection strut from the replacement part set as illustrated in Figures 7 and 9.
e. Hand tighten M8 hex bolt on linkage side.
f. Fasten the M8 hex bolt on the angle bracket side using the M8 self-locking nut provided in the replacement part set (the bolt must be inserted from below as illustrated in Figure 9).
g. Tighten both M8 hex bolts to 15 Nm.
h. Ensure that the linkage is not obstructed, and is protected by the linkage protection strut (Figure 10).
10. Reinstall seat in vehicle as per WIS document AR91.10-P-1000V
Parts Information
Note:
The following allowable labor operations should be used when submitting a warranty claim for this repair. This information has been generated on June 17, 2009. Please refer to Netstar --> Star TekInfo --> Star Time for the most current labor time allowance.
In Case of Warranty, use the table above.