Rain/Light Recognition Sensor -G397-, REMOVING AND INSTALLING: Notes
Risk of unintended engine start
The ignition must be turned off and the ignition key must remain outside of the vehicle when working on vehicles with a high voltage system.
Depending on time period of production (from MY 2012 as a running change) and vehicle version, the Humidity Sensor -G355- no longer operates as an individual part in the DTC memory. For these vehicles, if there is a difference on the Humidity Sensor -G355-, the Rain/Light Recognition Sensor -G397- is displayed as the faulty location using the Vehicle Diagnostic Tester in the "Guided Fault Finding " function.
Starting from MY 2010, there is a running change for the version of the Humidity Sensor -G355- (with or without Rain/Light Recognition Sensor -G397-). Removing and installing is different for both versions. Depending on the date of manufacture and the vehicle version, version "1" (discontinued as a running change through MY 2009) or version "2" (running change from MY 2010) can be installed.