I don't know why I never noticed it before but today I found this peep hole on my dash just above the glove box door.



(The picture is upside down. The hole is above the glove box)



What is this for? Is there supposed to be a light bulb or something in there?

Mark

 

I believe that is one of the places the climate control senses temp.

 

Ahhhh. Interesting. Thank you!

 

Right!

A few inches downstream of the hole is the cabin temp sensor which is connected to a long tube....which terminates at one of the heating/air con ducts. Air flowing thru the ducts creates a low pressure area so that air is drawn thru the hole, across the sensor, and down thru the tube.


Heating and Ventilation Sensor - Parts For XJS from (V)139052 to (V)179736 | Jaguar Heritage Parts UK

Cheers
DD

 

Doug is right, OF COURSE, but took all the fun out it.

It is also to hide whatever you dont found easily, haha. Imagination runs amuck here.

 

when traveling on the highway I can hear every once in a while it will make a whistling sort air sucking noise and then go away. Just checkin on the cabin temps

 

Nah. It's to get you -aclimatised- to the "teeth sucking noise" which is frequently referred
to on the UK forum just before the mechanic informs the owner of the cost of required
repairs.

 

That's a little weird.

The airflow thru tube occurs whenever the blowers are on. The sensor is reading the temp at all times.....not at timed intervals.

I'm not sure what you are hearing but I don't think it has anything to do with the cabin temp sensor


Cheers
DD