Aircon - Outside temperature incorrect. Noisy aircon-fan too, just for fun.

[jeromerault]

Hi all, hope you love your grenadier as much as I love mine
Still, it is not quite perfect - I know, who woulda thought it?

Anyway, here's my issue. As you can see from the attached photo the outside temperature recorded by the Grenadier is usually well below the inside temperature. In this case the outside temperature was 25°C but the car registered only 19°C. The upshot of this is that when I run the Aircon on Auto (even set to 19°C, whihc is the lowest you can go before 'full blast') the car thinks the car interior is at the same or a lower temperature than the outside temperature, and so it doesn't run the Aircon!

My second problem is that when you run the Aircon on full, which I sometimes have to do manually just to cool the car down because the auto is not working properly, the fan makes an awful whining racket. There's a lot of wind blowing noise as you would expect but the fan whines away, and it appears to be coming from somewhere in the passenger foot well. This is an intermittent problem and sometimes the outside temperature is correct and sometimes it's not.

So my questions to you are these:

1. Has anyone had a problem with the temperature gauge not working correctly.
2. If so, how did you resolve it?
3. Has anyone had a problem with the noisy fan on high?
4. If so, how did you resolve it?

Thank you in advance for all your help brothers in arms. Happy road tripping.

Romey.

 

[mcdoogs]

My hvac always whistles on auto. At full blast it whistles and whines something fierce. I dont think there is a fix. At least not until some brave soul disassembles the dash and trims the hell out of whatever vent flaps are causing the whistle and reports back.

Basically if I was running IA and I tested a prototype with this bad of a hvac system i’d make them tear the hvac design up and start over. But here we are two years of production later with this mess.

 

[Shopkeep]

First rule of Grenadier HVAC club is don’t use Auto. Second rule of Grenadier HVAC club is don’t use fan setting 4. Nothing you can do about it, one of the foibles of Grenadier ownership.

 

[Rok_Dr]

I find that the OAT (Outside Air temp) only periodically updates. When I first start the car it takes a minute or 2 to update the temp from that saved when the car was last turned off.

Auto with the following settings works well for me. Temp 21deg, Fan 1, Outlets face/feet.

Cheers
Steve

 

[landmannnn]

My fan used to whistle on 4, it doesn't now. It took about 6 months to quieten down.
The temperature gauge doesn't always agree with weather.com or whatever the phone uses, especially if parked in a car port or in the sun.