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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > AUDIO/VIDEO + BLUETOOTH + Electronics/Alarm/Software > ALL button not working in HVAC



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      06-23-2018, 03:45 PM   #1
PhilipUK
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ALL button not working in HVAC

In my 2012 E93 M3, the ALL button on the HVAC does not work - it doesn't light up when you press it, and the driver and passenger temperatures are not linked.

Is there any known/likely cause?

(I have the BMW extended warranty on the car, but there's a 250 excess, so if it's anything simple I'd rather have a go at it myself).
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      06-23-2018, 04:15 PM   #2
opjose
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It could be a minor coding issue.

Coding controls how what pressing that button does.

It can function to activate the fans while the car is parked to help cool the passenger compartment or it can function to link the temperature settings.
, etc.
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      06-24-2018, 12:56 PM   #3
PhilipUK
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You were spot on, thanks.

I had changed the function of the button in Carly for BMW, not realising that it would stop the ALL function from working.
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      06-24-2018, 06:00 PM   #4
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Excellent!

Glad you got it sorted out.
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