Hi all

I have problems with one of the stepper motor and I dismantle half a car to reach two of them in the centre dash.
One of them makes a sound like a drill when I push the control button.
With the motors out, how can I test them? They have three connections on the connector

Cheers

Take it apart, clean all the grease out, put new grease in, plug it back in the car and try it, sometimes you can get lucky and it will work again for a long time, if it's still making the noise it's best to replace it..

Good Luck Pete

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2014 L405 Autobiography SDV8 4.4 Loire Blue Ebony interior
2011 L322 Vogue SE 4.4 TDV8 Baltic Blue. Parchment over Navy Interior. Sold
2012 L322 Autobiography 5.0 Supercharged Ipanema Sand, Jet Interior. Sold
2002 L322 Vogue 4.4 V8 Epson Green, Ivory over Aspen Interior (Fatty Offroader) Sold
-Click for Project Fatty off roader-

You may found this thread helpful:

https://www.fullfatrr.com/forum/topic50136.html

Sounds like a similar issue.

Thanks for your answers.
To reach 2 of them I have to dismantle the dash top and lower and the centre console. I located 3 of them. 1 in the right footwel, 2 behind the centre buttons and the other? Do you know where it is?

This may help

Hi JohnK
Thank you very much for the clue. But to reach that I have to remove the complete dash board and, sincerely I am not motiveted to that

I have mounted all and there is air to the windshield and to the foots but not to the face. What can be? Must I connect the car to Allcoms?

sorry for all my questions.
Are these motors interchangeable?

Sorry, I dont know the answers to your questions, I've only had problems with the one in the drivers footwell on mine.

The workshop manual (sorry forgot where I down loaded it) has a good description of how the HVAC works, it may help you. Pages 513 to 563.