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.