harley2

Looking at getting spring service on 2015 Z A8 with 10,000 miles.

PDR starts & then stops! When using playback.

Anyone have a list of the updates I should make my dealer aware of, including the service bulletins numbers!

For A8 & PDR flashes or any other service items I should have looked at?

Thanks H2

1QUICK Z

Interesting in learning this as well. Here's my current "list"....

ECM update - 2810075 - Heat soak timing issue fix
A/C update - 2810015 - Repairs hot air blowing when set to cold

I'm hoping that there is an A8 update as my car still shifts pretty hard at WOT on the 3-4 shift. I've already had it updated once last summer and it did seem to get better for a while?

John

DLC7

Learn something new every day here. Had not heard of the ECU update. Thanks.

The Yav

Gents,
I Had both Reflash updated installed. I could tell a diference with the ECM and excessive hot air comming from the top vents.
- BEFORE: HVAC reflash on a 40 degree day no mater what setting is
selected (Dash/Floor) I could have the temp set on 70 degrees and it
would get hot in the car.
- AFTER: When you select both vents (Dash/Floor) you will get warmer
ambient air...if you select the floor vent the ambinent air is cooler.
v/r
THEYAV

ktoonsez

You're have a 2015 or 2016? Is update for both or 2016 already has it?

Thanks

BOBSZ06

The floor only will use the A/C to keep it cool (no A/C light will show).
The HVAC update will NOT change hot air out of the upper vents. That problem is due to the hot engine bay heating the inlet air.
Been there, done that.

The Yav

Late production 2015

rwheelz

Listen to Bob. The upper vents pump heat no matter what!

tripz

I had the update and seem to be dealing w hot air out of the top vents no matter how cool you set it to. I did notice when selecting top and bottom setting, air would be a little cooler. Bottom setting does allow cooler air

tripz

Has anyone had success with a circulation update that cured the hot air from blowing out the main vents w A/C off and using only Vent?