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BMW 3-Series (E90 E92) Forum
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Climate Control REST function
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11-18-2012, 10:21 AM | #24 |
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The REST function incorporates an auxiliary coolant circulation pump located in the engine bay close to the passenger wheel well, when you hit the rest button and the appropriate parameters have been met this powers up and circulates coolant through the heater coil in the cabin, providing residual heat from the engine/coolant until it drops too cool or the battery voltage drops too low therefore I think simply coding the car and replacing "ALL" with the rest function won't be possible as you'll be missing the circulation pump!
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11-18-2012, 10:39 AM | #25 |
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Probably in the minority here but much prefer the button functioning as "All" in my LCI. I had the Rest function in my old 330d and never used it. Much prefer the All function of keeping the temps in synch.
Interestingly the new F30 I had the other week had neither function and looks like it does Max air con. Cost saving again I suppose........... |
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11-18-2012, 02:48 PM | #26 |
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Drives: E91 330d M Sport
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As this is now going off topic, I'll chuck in my 2p
Does anyone actally use the dual zone AC? I set both sides to how warm or cool I want the car - always the same temperature. If the passenger doesn't llike it, they can close the vents on their side. AFAIK there is only one cabin temperature sensor, which is in the middle of the console - so I genuinely don't know how it can try to keep 2 temperatures.
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11-19-2012, 05:04 AM | #27 | ||
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Quote:
Quote:
HighlandPete |
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11-23-2012, 03:40 AM | #28 |
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I may be wrong, but i have a pre lci so cant actually check. I remember reading in a different thread that if you hold the ALL button for a few seconds it activastes the REST function.
Those of you wih lci models may want to try. Hope it helps |
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03-16-2015, 07:34 PM | #29 |
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can you convert the rest button to be an all button on the pre-lci?
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08-31-2015, 09:39 AM | #30 |
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More Info, please?
Can someone provide more info on the REST function on newer cars with the ALL button? Perhaps a link to how to reprogram, if possible?
When I picked up my 'new' car last week, the salesman went over a bunch of the features, and mentioned the REST feature, but it isn't listed in the car's manual. I have an ALL button though, which I could do without. My fault though; I was so excited about picking up the car, I only took in about 50% of what he was discussing with me about the I-Drive functionality. I found the Vent function and timer under Climate Settings, but that's not quite the same thing. That would be useful in the hot, humid summer months to activate right before leaving work, after the car has been baking in the sun all day. I live in a cold climate, and I would much prefer having a functioning REST button, so I wouldn't have to leave the car run when I run into the convenience store to buy a cup of hot coffee for my commute. More info, please? Or a link to the method of reprogramming would be much appreciated. m連helly |
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03-08-2018, 07:50 AM | #31 | |
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I think the ALL button is a REST button but you access the REST function differently.
I've also heard rumors that as a result you can code an ALL button to act like a REST button. Quote:
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