Fun4stuff

I'll come to a complete stop but the car will not turn off. The A symbol for auto stop/start will show upon the instrument panel but crossed off. Seems to be happening more now that it's cold out. Why is this?

See here: https://imgur.com/a/FNkNH

Fun4stuff

Found it in my manual of 79. Looks like it could be because of high power consumption, environmental conditions, battery, engine temp, etc.

heisnuts

Yeah, there are so many conditions that need to be met for the system to actually shut off the car that it makes it very difficult to predict exactly when it will work. If you want it to shut off the car at a stop make sure you have your foot firmly on the brake because a light foot on the pedal is also a condition that will prevent the system from shutting down the engine.

Ngerstman

Don’t like the feature anyway, wish it could be switched off in settings. First thing I do after starting car is turning it off! Regards. Ned.

rbreeze

Hi Ned. I'm with you - I also don't like the feature, and I always use the deactivate button after starting the car.
Do you possibly have an OBDeleven device? I bought one a couple of months ago, mainly to activate Audi Active Lane Assist on my '18 Q5. Totally successful. I've since also activated "Scandinavian DRLs" and disabled the seat belt warning using the OBDeleven's included "apps".
Anyway.. in the list of included apps within the main OBDeleven app (installed on my Android phone) there's an option to activate or deactivate the auto start-stop function. I think I might give that a go later today, to see if the app actually works/applies the change to permanently deactivate auto start-stop.
Besides using that simple-to-use custom app I've read there's another way to deactivate auto start-stop.. and that's by changing the auto start-stop voltage limit to 12V (new value) in Control Unit 19's Adaptation settings, using the OBDeleven, VCDS or other such device.
- Richard

Fun4stuff

Can you use obd11 to make it so auto high beams are on by default?

aclass

Interesting, so you guys are saying the feature is enabled by default and the user must disable it? Is this model specific or across the lineup?

Ngerstman

Pretty common feature everywhere these days that enable the manufacturer to get better mpg ratings on their fleets. Not on s8 and perhaps some other super performance vehicles. My friend just bought the Cadillac mid size suv and the feature is not defeatable, that would be a deal killer for me. Regards. Ned.

browns_d02

Once the AC or Heat reach the desired temperature setting, then stop/start works fine for me.

rbreeze

^ Hmm.. not sure. But perhaps someone else here with more experience on tweaking Audis can comment on that.
Are you unhappy that you have to double tap single tap the turn signal lever forward at each nighttime engine start to activate the high beam assistant? To me it's not a biggie.