Thread: Does the a/c default to 'fresh air' each time?

Originally Posted by garbage

Don't have a D4 just yet, but I'm a bit disappointed to read that the air conditioner doesn't remember your preferred setting and defaults to 'fresh air' mode whenever it starts. Is that right? Is there a hack for this? I'm not a fan of inhaling carbon monoxide while I drive.

Working as designed.

I seem to recall that there were changes made to the way the HVAC system works in a lot of cars that forced there to be outside air introduced on a timer. This was because the seals were so efficient that CO2 levels were rising inside...

If the above is correct, then it's likely to get fresh air into the cab to help keep the driver awake.

Originally Posted by garbage

Don't have a D4 just yet, but I'm a bit disappointed to read that the air conditioner doesn't remember your preferred setting and defaults to 'fresh air' mode whenever it starts. Is that right? Is there a hack for this? I'm not a fan of inhaling carbon monoxide while I drive.

Not quite a hack - but a feature... if you hold down the recirculate button until it flashes (about 5 seconds), it will then stay on recirculate until the D4 is turned off. You just have to do it again when you start.

Originally Posted by garbage

I'm not a fan of inhaling carbon monoxide while I drive.

Other than the recirc button, it's also worth noting that the cabin/pollen filter is very good. And there is also an upgraded filter available with activated charcoal that's apparently even better. I'll be getting one of these at some point (just got a new standard filter at the 12M service).
http://www.aulro.com/afvb/d3-d4-rrs/...en-filter.html

Part number JKR500010 for the plain one and LR023977 for the charcoal one, which supercedes old part number JKR500020.

Cheers,
Scott
.

Thanks for the responses guys. They are all on the money. I did also check with both a dealer and an independent and this is how it is. There isn't a hack that they were aware of either.

Originally Posted by LRD414

Other than the recirc button, it's also worth noting that the cabin/pollen filter is very good. And there is also an upgraded filter available with activated charcoal that's apparently even better. I'll be getting one of these at some point (just got a new standard filter at the 12M service).
http://www.aulro.com/afvb/d3-d4-rrs/...en-filter.html

Part number JKR500010 for the plain one and LR023977 for the charcoal one, which supercedes old part number JKR500020.

Cheers,
Scott
.

...or... if you like tech, you can order the car with pollution sensor which will automatically switch the system to re-circulate when it senses excessive amounts of pollution:

Air recirculation - with pollution sensor
Press the button once to activate air recirculation. Press the button a second time to activate automatic air recirculation. Press the button a third time to switch the system off. In Auto mode, air recirculation is regulated automatically to enable the air-conditioning system to achieve its optimum performance. Air recirculation prohibits the entry of air from outside the vehicle, recirculating the air inside the vehicle instead. This is useful to prevent the entry of traffic fumes. Air recirculation also significantly influences the dehumidifying and cooling performance of the air-conditioning system. Note: The windows can mist up if air is recirculated for a prolonged period.

not much help if you don't have the feature!

Originally Posted by SBD4

...or... if you like tech, you can order the car with pollution sensor which will automatically switch the system to re-circulate when it senses excessive amounts

Mandatory if you're in Beijing

Scott

Anybody priced the upgraded aircon filter????
Im a non re-circ aircon fan.Must admit,the aircon in the D4 is the best Ive ever used in ANY vehicle.So good its always turned on,I just adjust temps/fan speed for comfort.PERFECT.
Andrew