S 550 (221.171) V8-5.5L (273.961) (2007)
Speaker: All Technical Service Bulletins
Audio System - Front Speakers Intermittent Or Inop.
Date: November 26, 2008
Order No.: P-B-82.60/667
Supersedes:
Group: 82
SUBJECT:
Model 221.171/176/177/179/186
Model Year 2007, Up To VIN A033392
Left or Right Front Speakers Intermittently or Permanently Inoperative
If you receive customer reports in the above model vehicles of the front left or right speakers intermittently or permanently being inoperative, this may be
caused by the upper centering pin (Figure 1) of the mirror base in the left or right mirror being too long. As a result, this longer than specified pin causes
contact with the tweeter connections in the mirror triangle creating a short circuit. To remedy, shorten the upper centering pin in the left and/or right
mirror triangle by approximately 3 mm.
NOTE:
The following allowable labor operations should be used when submitting a warranty claim for this repair. This information has been generated on
November 26, 2008. Please refer to Netstar -> Star TekInfo -> Star Time for the most current labor time allowance.