To upgrade the Webasto parking heater, certain standard requirements are required on the vehicle. The upgrade is only possible for VW T5 TDi models from 2004 with built-in standard auxiliary heater. This can usually be recognized by the WEBASTO sticker in the area of the opened driver's door. The vehicle must also be equipped with an automatic air-conditioning system (Climatronic).
If the requirements are met, the conversion kit and the Telestart T91 remote control (item no. 48111) are required to control the heating.