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I have a 2008 jag xf 2,7cc when turning on, the drivers side vent next to door will not go up,you can put it up with your hand and when you turn car off it will come down automatically,would like to know if anyone has any idea why, and how to remove from dash board if it needs repair our replaced as I can not see how it would come off,,Ta
You would have got a better response by posting this question in the X250 forum for the 2007-2015 XF/XFR.
Jaguar call these vents Face Level Registers - interesting to know what language they speak in Coventry! They are operated by stepper motors which are not listed separately in JEPC (Jaguar Electronic Parts Catalogue).
The Workshop Manual explains the operating process:
Face Level Registers
Operation of the face level registers is controlled by the ATC module, using LIN bus messages to the integral stepper motors. The four registers operate together in both the opening and closing phases.
The face level registers can be selected to run in one of two modes; 'automatic' or 'always open'. The mode is selected on the climate control screen of the TSD.
Refer to: Navigation System (415-01 Information and Entertainment System, Description and Operation).
In the automatic mode, operation of the face level registers is synchronized with the engine START/STOP button. When the engine starts the ATC module opens the registers. When the engine stops, the ATC module closes the registers.
If a face level register is fouled, when it receives an open or close request, the register concerned makes a number of attempts to reach the requested position. If the register still does not move, it is left in the fouled position. The remaining registers will continue to open and close as normal.
The automatic mode is disabled when the climate control system is off. The ATC module closes the registers if they are open in the automatic mode and the climate control system is selected off.
Diagnostics
If a fault occurs with the face level registers, a DTC (diagnostic trouble code) is stored in the ATC module. The DTC can be read using the Jaguar approved diagnostic system. The Jaguar approved diagnostic system can also initiate a self test routine to check the operation of the face level registers.
Refer to: Climate Control System (412-00 Climate Control System - General Information, Diagnosis and Testing).
First troubleshooting step is therefore a Jaguar Diagnostics session to read error codes and initiate the test routine. The Workshop Manual doesn't include specific instructions on removal of the Face Level Registers but the end cover has to come off then the cover trim to access them.
LHD shown in the manual but RHD will be the same procedure.
Please follow this link New Member Area - Intro a MUST - Jaguar Forums - Jaguar Enthusiasts Forum to the New Member Area - Intro a MUST forum and post some information about yourself and your vehicle for all members to see. In return you'll get a proper welcome and some useful advice about posting to the forum.