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Rear Aircon control locked

M0HAO

Active Member
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Joined
Sep 13, 2019
Messages
64
Location
Reading
Car
W639 2013 Viano Avantgarde
Hi,

My rear aircon control is as you can see in the picture.
I´ve tried pushing left and right buttons with no results, stays like that.
Please, Any idea what is happening?
Thanks
Martin

IMG_20191014_195217 - Copy.jpg
 
On passenger cars "SYNC" would not block control from the rear or the front passengers, just makes all areas follow the driver settings until one of the other areas is tuned. A van could be different.

I did not check if this is on a lin bus, perhaps an issue there?
 
Fair enough. Yes it’s on a lin bus connected to main control unit - power and LIN (just considering a retrofit in W253 and it’s the same rear control unit on W447 and 205/253)
Cheers
Richard
 
Hi guys,
No idea what is the lin bus, I guess a bus connection between air controls.
I'll check later today any sync.

Thank you
Martin
 
RESOLVED

You guys were right. Someone (children) they activated a "sync" option to synchronize front and rear aircons.
All sorted.
Thank you very much

Martin
 

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