THE INTERNATIONAL JAGUAR 'S'-TYPE REGISTER FORUM

Hi. Screen shot from service manual. To be sure to know what you have, press «off» first as this cancels the two others. Observe that «heat» also cancels «air». In other words, have to push the buttons in correct order to get desired result.
Full description in service manual section O, heating and windscreen washing equipment. Can be downloaded from this forum, S-type documents.
Harald.