C 350 (204.056) V6-3.5L (272.961) (2008)
Rain Sensor: Customer Interest
Lighting - 'AUTO Lights Inoperative' Message Displayed
Date: September 16, 2008
Order No.: P-B-82.30/635
Supersedes:
Group: 82
SUBJECT:
Model 204.054/056/081
Equipped with Rain/Light Sensor (SA code 345)
"AUTO Lights Inoperative" Displayed in the Instrument Cluster
If you receive customer reports in the above model vehicles of the message "AUTO Lights Inoperative" displaying in the instrument cluster
multifunction display, this may be due to a hardware fault in light/rain sensor module (LRSM).
Note:
The condition is dependent on ambient temperature. The message may appear shortly after engine start-up. At the same time, the limp-home mode
will be initiated for the low beams and windshield wipers. When the interior compartment warms up, the message will disappear and normal
functionality of the low beam and windshield wiper will resume.
Note:
If the low beams are in limp-home mode because of a faulty LRSM, the low beams will enter NIGHT mode. If the wipers are in limp-home mode
because of a faulty LRSM, the wipers will wipe at a predetermined wiping cycle.
To resolve, check the part number of the light/rain sensor. If the part number is either A204 870 47 26 or A204 870 42 26, replace the part as per WIS
instructions AR82.30-P-7800CW with part number listed below or its successor.
Note:
Please submit all damaged parts along with a quick test. Costs for components submitted without a documented fault code or faulty part number
(noted above) WILL NOT BE REIMBURSED.
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
September 16, 2008. Please refer to Netstar --> Star TekInfo --> Star Time for the most current labor time allowance.
In Case of Warranty, use the table.