Date: 100501
Lighting - Automatic Headlamps Sensitivity
SI M 63 10 08
Lights
May 2010
Technical Service
This Service Information bulletin supersedes SI M63 01 08 dated December 2008.
[NEW] designates changes to this revision
SUBJECT
Automatic Headlights: Adjusting Sensitivity
MODEL
All MOST bus vehicles with option 521 (Rain sensor and auto headlight)
SITUATION
The customer complains that the headlamps switch on too early or too late with the headlamp switch set to the "Automatic" position.
CAUSE
Rain/light sensor sensitivity
[NEW] INFORMATION
The problem has been integrated into ISTA diagnostics. Follow the diagnosis test plan, using the latest ISTA version.
In the "Information Search", select the "Text Search" tab and search for "W6300" as the search term.
Select the test plan "W6300_WAS20 Sensitivity, automatic driving lights".
WARRANTY INFORMATION
For information only. Warranty claims to adjust sensor sensitivity should not be made and will not be approved.
