October 30: LEMON manuals on a temporary server, it is slow and having issues, download the manuals you need! Later in November we will switch back to the fast server.

Rear Window Heater (HHS)

The electronic rear window heater output stage of the PM is activated by a "HHS On" (K-CAN-S via CAS via K-CAN -P) message from the IHKA control unit. Control is directly by the final stage.