Rear Window Defogger Button -E230-, REMOVING AND INSTALLING: Installing
WARNING: This page is about a different variant/trim than selected.
Install in reverse order of removal. Note the following:
-- Make sure the Rear Window Defogger Button -E230- -B- and Fresh Air and Recirculating Air Mode Button -E781- /Defrost Button -E782- -A- are arranged on their proper side.
-- Check the DTC memory (of the Climatronic Control Module -J255-) and delete any displayed entries using the Vehicle Diagnostic Tester in the "Guided Fault Finding " function.
-- Then check the function of the Rear Window Defogger -Z1-.