Just bought a new (to me) 2015 Q7 Premium Plus TDI with 144k miles. I was wondering if there is any merit in resetting the transmission adaptations (as seen in other threads) with VCDS? I suspect our driving style will be different than the previous owner. Will it continue to re-learn if I don't reset? It drives great, btw. May eventually be a candidate for a Malone tune, just not now.

Looking for some recommendations.

 

If it "drives great", then it sounds to me like you are good. If you notice it being slow to kick-down in D-mode, and overly eager to shift up in D-mode, and/or a spongy/laggy throttle feel, then you might want to consider keeping current map/adaptations relearn, changing to a different shift map...again, with the adaptations relearn, or simply doing a throttle relearn on it, which can really tighten things up all on it's own sometimes. It's a fly-by-wire throttle, so if you don't like how it feels now, look up the reset on that...very easy to do w/o special tools; it's just a reset sequence to follow.

I'd say to play around with how it feels in D-mode vs S (sport) mode, and how it responds to manumatic shifting too. The self-learning function is influenced by how you use the manumatic shifting to select shift points, etc. If you do any resets, or shift map changes, it is going to drive a bit raw & rocky until it has a chance to learn your 'norms', so just be aware of that. If you feel a bit restless, I'd highly suggest you just start with the throttle relearn sequence as a starting point and go from there.

Also, be aware that the TDIs from '13-'15 have the second gen TDI engine in them (North America). These particular cars got an additional reflash (ASA#23Z9) from Audi post-diesel-gate emissions fix stemming from the number of owner complaints, and which really made a huge improvement in how they drive. As it was a reactive campaign, not all those Gen 2 TDI engined cars eligible have gotten it, but they still can. The earlier, Gen 1 TDI engines got no love from Audi post emissions modification, so modding the shift logic from the 'post-emissions scandal version' back to a standard shift profile and relearning the throttle to get rid of lag is just what you have to do to improve the drivability on those earlier TDIs. I got waaaay more benefit out of this on our '10, than the '15 we have, but the throttle reset/relearn is pretty much a no-brainer place to start. Try that out along with dabbling in S-mode and manumatic shifting, and see what you think, before diving into the deep end.

 

Thanks! Exactly the information I needed. I'll try the kick down reset first for sure.

Can Audi tell me if my vehicle has had ASA#23Z9 over the phone or do I have to make a service appointment?

 

You should be able to view it in the online portal where you view the emissions recall 'fix' status related info...basically it was just a 'fix' for the original 'fix', which is why it shows up in there: https://audidiesellookup.com/. Failing that, Audi can easily verify it for you. It's definitely good to know for certain.
It's not a bad idea to get Audi to send you the service records on the car, while you are on that topic, and they can also provide you the window sticker on the car, so you'll have no doubt as to how it was equipped, etc., as those questions inevitably come up at some point. Audi dealer's sales dept. emailed me the window sticker as a PDF...perfect!

 

The portal allows you to verify the emissions fix and warranty dates/mileage applicable to your specific car. The items you want to pay attention to in reviewing service records from Audi is if they ever replaced/repaired the HPFP (high pressure fuel pump), as that right there can really spoil things if/when it shreds itself internally when failing. Using top-tier fuel helps prolong the life of the HPFP, and you can feel the difference in engine performance being zippier too. If I can't get top-tier diesel when refueling, then i will supplement with Liqui Moly TDI fuel system additive every other tank of fuel.

 

Interesting - I wanted to take it to a dealership to have them perform the next mileage service (135,000 I guess) and have been denied at two different dealerships. They said they don't take cars over 100k and to seek out a third party. I've got a good shop, but just wanted to have the dealership give it a once over (and fix two minor issues I knew existed when I bought it). So much for Audi family love!

 

https://audidiesellookup.com/
Welcome to Audi ownership. I know they are super busy with recalls on the 4M chassis right now, but that's hard to fathom that they would tell you they don't do basic services on Audi's past 100k miles, not that I would suggest anyone take their car back to the Audi dealer for anything not covered by a warranty, seriously...you don't want to take your Q7 to the dealer.

 

Can I reset the transmission on my 2007 Q7 to stock with the Ross-Tech Hex-V2?

 

Do you mean performing an adaptation so it will be forced to 'relearn' based on how you like to drive it, or simply to change the shift map out entirely?

The simple answer is YES, to both questions. If you have a TDI, then you got a post-emissions scandal transmission shift map as part of the 'emissions fix', which is less then ideal in D-mode and often contributes and/or results in lag issues. Before you change anything on the tranny setup/shift maps, start with the simple throttle pedal reset/relearn sequence. You can always use the VCDS to go see what shift map you've got loaded now and what options are available to you. You don't have to change it out simply to go have a look at what options exist in your car. If you ever complain about driveability issues, the dealer just goes in and adapts the tranny for relearning, resets/relearns the throttle pedal, and takes it out for a test run designed to reestablish the baseline, so it won't be all jerky when you pick it up. If you do any of these tranny relearns/updates discussed, it is going to be rough for a bit as it relearns, so that's why I recommend start with the throttle reset, which is quick and dirty, and can rid you of the 'squishy/laggy throttle syndrome'.

 

I have the 3.6L