Feedback from 3.0 TDI Owners

[TXautobahn]

Current S4 owner here, looking at adding an A6 TDI to the fleet. Drove one and really like it, but wanted to get some feedback from some owners before making a decision. There doesn't seem to be a whole lot of talk about the diesel A6's on here, so figured I'd ask.

Anything diesel specific to be aware of? Any problems to watch out for?
How is overall reliability?
Does the A6 have air suspension or is that just the S6? If so, how long do air shocks typically last?
Anything in the refreshed 2016 models you just can't live without? Or are the differences from the 2014 and 2015 models negligible?


Comments and thoughts are much appreciated. Thanks!

[Audibot]

Yeah, seems very few on here got the diesel. You can ask the Q5 folks too since some there have gotten them. Anyway, here are my thoughts on your questions:



1. No specific issues I'm aware to look out for. The TDI settlement is a huge boon in terms of warranty as well.

I am currently waiting for warranty to expire before I purchase a dpf delete and tune. I've heard great things about increased power in addition to increased fuel economy, so we'll see. Here in MD, we don't have emissions testing on diesels, to my surprise last year.

2. I have owned mine for a year now. I have yet to encounter anything other than a few finicky MMI issues with my phone/bluetooth, and a speaker grille buzzing. Nothing engine or driving-wise. In Houston, you shouldn't have to worry about potholes, so if you get the 20s, it will be nice. Be aware though that in 2019, the Audi Care Select for TDIs is like $1250 MSRP, so quite a bit more expensive if you are contemplating having the dealer service it.

3. Only the S6. A6 can come with a regular or sport suspension, depending on the package. No worries there. I'm sure there are aftermarket ones if you wanted.

4. On refresh (2016), appearance aside, I believe this was when MMI was updated to the 4G-LTE one, and it's been fantastic. The WiFi hotspot has been great for streaming music without using data. Probably the single feature I enjoy the most. Ironically I prefer the pre-facelift headlamps more, but don't mind mine. In 2016 as well, LED headlamps were available on Premium Plus (instead of just Prestige, where it became standard), and I think a few other options were rolled into different package (no more "Technology Package" IIRC).

I can say I absolutely love my car. It's been fantastic in my year of ownership. The torque is addictive, which you should know in your S4. Certainly moves a 4200 lb car quickly! It does take some time to warm up the cast iron block; much longer than my C5 allroad or B7 A4. And during that warm-up period it is a bit sluggish at times. Also sound very diesel during this time. These go away when it's warmed up, so only a temporary nuisance. If you can, make sure you get high quality/premium diesel (>46 cetane for sure). As high a cetane you can get. I've seen some south of me offer 55 cetane. You can feel the difference between good and bad (minimum) quality diesel in noise, smoothness, power delivery, and fuel economy.

[Kevin1]

I have had mine for 4.5 years and 88k miles. So far she runs like a champ. Great torque and great fuel efficiency.

[67ITB]

BLUF I am very happy with my TDI.

While not specifically answering your 3 questions I will give you my experience with the A6 TDI.

I have a 2014 A6 TDI Prestige, S Line cold weather package, LEDs, no HUD, no B&O with 130K miles and so far it’s only needed routine maintenance. Tires, Brakes, Windshield Wipers, filters, and such.

I purchased it brand new in late 2014, and in 2016 the car sat for almost an entire year while I was away for work. So my miles are probably 75% highway.

Fortunately for me I can’t warn you about what to look for, but can reassure you if it’s been well maintained you can drive worry free like me.

About a year after the EPA fix I had my first and only check engine light! (122K miles)
VAGCOM scan said it was the diesel particulate filter. Took it to the dealer and it was a sensor and not the actual DPF. Either way it was fixed for free as part of the TDI warranty.
From the VAGCOM
15474 - Particulate Matter Sensor P24AE 00 [232] - Electrical Malfunction MIL ON -

Post EPA fix I feel its louder when warming up, gets slightly worse fuel economy (approximately 32.XX MPG verse 33.XX even 34.XX MPG before) and it generally runs at a higher RPM, (or maybe it’s in a lower gear?) around town, but if that’s all you know, you would never know its any different

Even post EPA fix from the outside of the car it’s not loud, but it’s loud for an Audi if that makes sense?

Its just slightly louder than you would expect for a luxury car, but from the cabin its still quiet. But again, if you didn’t know if pre EPA fix, its probably not noticeable.

Interesting comment above about the quality of diesel, as I generally use only 2 fuel stations so have never paid attention to what they have but will have to see what their cetane rating is.

I have a few other write-ups about the A6 TDI if you want to search by my name. Since so few of us post about the TDI I feel obligated to reply to the questions.

The car is an amazing tank in the snow, has great torque, and a smooth highway cruiser.

Matt

[Birdman86]

How does the S6 compare to the A6 TDI, has anyone driven both and formed any opinions?

[TXautobahn]

Thanks for the replies, guys. Sounds like a solid car. Will try to pick one up in the next couple of months...

[/dev/null]

I ordered a loaded prestige 3.0 TDI back in '14... have had only a couple minor issues - all warranty stuff and quite simple fixes. As far as the engine / drive train absolutely zero issues. The car is fantastic. My only "gripe" is after the TDI fix the car sounds a little more "diesely" as they didnt re-tune the noise cancelling system, otherwise no complaints. I did have an O2 sensor crap out about a month ago - with the extended warranty (came with the TDI fix) it was replaced no charge.

My wife was considering a new 550 Xdrive, however her audi is paid for (since day one) and still looks like the day we bought it, I took her to the Louis Vuitton store instead - seems the idea of a new car suddenly dissipated (and a lot less expensive too :-)

[Kevin1]

I ordered a loaded prestige 3.0 TDI back in '14... have had only a couple minor issues - all warranty stuff and quite simple fixes. As far as the engine / drive train absolutely zero issues. The car is fantastic. My only "gripe" is after the TDI fix the car sounds a little more "diesely" as they didnt re-tune the noise cancelling system, otherwise no complaints. I did have an O2 sensor crap out about a month ago - with the extended warranty (came with the TDI fix) it was replaced no charge.

My wife was considering a new 550 Xdrive, however her audi is paid for (since day one) and still looks like the day we bought it, I took her to the Louis Vuitton store instead - seems the idea of a new car suddenly dissipated (and a lot less expensive too :-)

I usually go with jewelry.

How many miles do you have on the TDi?

[202009]

Former 2012 Audi S4 6spd owner, switched to a 2014 Audi A7 TDI.

For the amount of driving it was a great decision and the right one for me. The A7 obviously isn't as nimble, but it makes a great highway cruiser.

The diesel is unfortunately laggy, that was originally my biggest complaint and one that I am still getting used to.

Aside from that, the size of the car is also somewhat excessive, but you get used to it.

Reliability wise it has been great, I did have a CEL that came up related to the dieselgate fix that was replaced by the dealer under warranty.

[brijesh]

I just brought 2014 A6 TDI PP with 83K miles and was reading through all these good experiences.

[deeee]

Gonna bump this as I'm strongly considering a 2016 A7 TDI;

Anyone own one in the northern climates? How bad is the warm-up time really?

Also, I'm buying CPO, so is it just the regular CPO warranty or is there some extension due to dieselgate in Canada as well?

[delmd92]

How far north are you thinking of? Mine started every day this winter, even -20 F. I have 3.5 miles to the highway and always blowing hot air by then. Handles the snow well even when I was on well used tires. I am at 80k and am replacing both front wheel bearings now. Seems the car doesn't like our cratered roads very well. Pretty much the only repair I have needed to do.

Put one of those tuning boxes into the wife's Q5 TDI and the lag is gone. I am planning to do a Malone tune in the near future and hope to get comparable results plus a bit more performance.

[deeee]

How far north are you thinking of? Mine started every day this winter, even -20 F. I have 3.5 miles to the highway and always blowing hot air by then. Handles the snow well even when I was on well used tires. I am at 80k and am replacing both front wheel bearings now. Seems the car doesn't like our cratered roads very well. Pretty much the only repair I have needed to do.

Put one of those tuning boxes into the wife's Q5 TDI and the lag is gone. I am planning to do a Malone tune in the near future and hope to get comparable results plus a bit more performance.

Thank you, this is helpful. I am in Toronto, so we almost never get that cold. Plus, I park indoors, so I think I'll be ok. Not worried about the snow at all, my B8 S4 was more than capable for my purposes, so the A7 won't be much different.

I'm going to test drive the TDI tomorrow and make my decision based on that.

[wellsit]

'16 A7 TDI here with 16k miles. I commute about 90 miles a day, all hwy. I got the TDI for the torque and mpg's and I'm so happy I did. I usually get about 38 mpg's on the hwy but I've done as good as 42. I don't drive very fast. I usually set the cruise around 65 and sit in the right lane and let traffic pass me by, which probably contributes to my higher mpg's.
I've been driving diesel pickups for years so to me, this car is quiet with great response. I recently had a couple loaners from the Audi dealer with the 3.0T and I noticed that those were much more responsive but much poorer mpg's. On the TDI, if you want snappier performance, shift into Sport mode and enjoy the pull of all that torque!

I haven't had any major issues, just a speaker cracking and popping randomly and a transmission anomaly that Audi says is normal. To clarify, sometimes (not always) when i'm cruising along around 60-65 mph, cruise control set, if I go up a long hill, the car will start to shudder. if I shift down to 7th, it'll go away immediately. Audi says this is normal behavior due to the transmission tuning post EPA fix. They say it cause no damage and won't fix it. I've just learned to shift down to 7th and avoid the situation altogether bc frankly, I don't trust them.

Overall I love the TDI and am happy with my decision. I'll likely tune it after the warranty runs out in a few years.

[zcd2.7t]

We own a 2015 Q5 TDi with about 55K miles - it's a fantastic vehicle overall, with the TDi engine being the best thing about it.

The torque and the way it allows you to drive is SO satisfying.

Passing cars on 2-lane highways is really fun - no downshift, just huge shove!

[5kcstq]

I've got a 2014 A7 TDI Prestige... absolutely LOVE the car. The engine is the best part. It's extremely easy going and the torque rush is addicting.

I've owned a ton of Audi's dating clear back to a 1980 5000s and out of all of them, this A7 is hands down my favorite. I live at high altitude and there's definitely some lag to get used to, but not Porsche 930 Turbo levels of lag. All the expensive Diesel stuff is under warranty out for another 10 years, so not much to worry about there. Overall, for me, the TDI is head and shoulders above the gasser in all respects

[JoeM5952]

I just bought a 14 TDI prestige a few days ago and I love it so far. I am really happy about the postive reviews in here.

Considering a tune but not sure about it yet.

[Dr Chill]

On my second A8L TDI after trading up from a 2015 A3 TDI. Only reason I traded in my 15 A8L TDI was that a new leftover 16 became available at a huge discount after the stop sale was lifted. I have put a total of 40,000 problem free miles on the two 3.0L TDI cars and marvel every time I get behind the wheel. The combination of smooth power delivery, great low end torque, and fantastic fuel economy is unsurpassed by any other motor available today.

You will not be disappointed.

[202009]

Thank you, this is helpful. I am in Toronto, so we almost never get that cold. Plus, I park indoors, so I think I'll be ok. Not worried about the snow at all, my B8 S4 was more than capable for my purposes, so the A7 won't be much different.

I'm going to test drive the TDI tomorrow and make my decision based on that.

You are following the same path as me...I am also in Toronto. I don't miss the S4 at all, my '14 TDI A7 is a fantastic daily.

Mine gets serviced at Uptown Audi and they told me my car is covered to 193,000km as part of dieselgate. I had no idea I'd have warranty prior to buying it either, so that was a nice surprise.

[Wente3]

Was hoping to bug you guys again on this post. Is there any truth to this link here? I'm driving a diesel pickup currently that I'm confident would go to 500k+ miles without a major overhaul. I would hope a German diesel would easily surpass an american-made diesel. I'm very interested in the mileage, as I get 26 highway in my 7k+ lbs pickup. But I'm wanting to return to the car scene, especially with an AWD vehicle here in the midwest. I've found a couple 2014 models but very few 2015-2016 models on autotrader with less than 75,000 miles. I'm curious about high mileage owners, as I'd like to keep this car for a long time. I understand it'd be good up to 100k, but beyond that I'm a bit worried.

http://www.motorreviewer.com/engine.php?engine_id=91

[Audibot]

First thing about German cars--You need to be on top of the maintenance. You should try expanding your search beyond AutoTrader. You may be able to still find a couple 2016s brand new for major $ off.

I don't have nearly 100k miles yet (<52k still). I've had one engine-related part replaced by Audi (injector pump).

The link you sent is not for the engine the USA received (CPNB; not listed). I cannot confirm what revisions between it and the USA version are. Your best bet would to be check out other sites, since the diesels are not big on here. tdiclub.com may help; also Audi-Sport.net or others to get an idea from the Europeans.

[Gunmeister]

Unfortunately a lot of the 2016's are gone now. If you keep looking I'm sure you'll find a few. That link says to 2013. I don't think that's the right engine.

2016 A6 TDI*|*Mugello Blue, Pearl Effect Exterior | Alabastar White Interior | Audi Exclusive Line | Eucalyptus Natural Wood Decorative Inlays | Prestige Package | Comfort Seating Package | Driver Assistance Package | S Line Sport Package | 20" Black Optic Package | Cold Weather Package | 18% Ceramic Film Windows | 70% Ceramic Film Windshield | Thinkware F800 Pro Dash Cam | Audi All Weather Mats*| Auto Hold Activated | ESCORT Radar Max 360c*| 1 of 1 for 2016

[Wente3]

First thing about German cars--You need to be on top of the maintenance. You should try expanding your search beyond AutoTrader. You may be able to still find a couple 2016s brand new for major $ off.

I don't have nearly 100k miles yet (<52k still). I've had one engine-related part replaced by Audi (injector pump).

The link you sent is not for the engine the USA received (CPNB; not listed). I cannot confirm what revisions between it and the USA version are. Your best bet would to be check out other sites, since the diesels are not big on here. tdiclub.com may help; also Audi-Sport.net or others to get an idea from the Europeans.

Not a problem with maintenance. I use Schaffer's oil with additives for stiction and lubricity to maintain injectors, and I'll occasionally add some extra Archoil to help with lubricity. This keeps my current vehicle running smoothly and keeps the system clean.

I apologize for putting the incorrect link, I obviously wasn't paying enough attention. Admittedly, I'm having a difficult time keeping up with the engines of VW/Audi, as there seems to be many. I will try and expand my search, but I'm a bit limited money-wise. The 2014 models I run across normally have around 40k to 70k miles in the $20k to $24k price range. I'm trying to keep it around that range if possible. I've been pretty tempted to go for the 3.0T as I used to have a supercharged pony car. But I've become ADDICTED to the torque, mileage, and sound of a diesel.

I greatly appreciate the feedback!

[Audibot]

I've been using Power Service Diesel Kleen with good results so far (added to the tank). Haven't used any oil additives since I had been in warranty and thus used the dealer. I'll look into the ones you've listed and others to see what looks like it will provide the best result.

I'm also looking into your question about miles before overhaul. I feel like the DPF would be the first thing to go; of course, with 120k (or more) warranty on the thing, it isn't such a bad deal.

I agree on being the torque and mileage of the diesel. A Stage 2 3.0T will run circles around it but can still return decent mileage (folks have reported 30+ mpg). Something to consider. Or an S6, which has both displacement (4 L) and twin turbos, and can easy surpass 500 hp and lb-ft, and still return decent highway econcomy.

[Wente3]

I've been using Power Service Diesel Kleen with good results so far (added to the tank). Haven't used any oil additives since I had been in warranty and thus used the dealer. I'll look into the ones you've listed and others to see what looks like it will provide the best result.

I forgot to mention Opti-Lube XPD as a fuel additive. I don't know if I can find the write up, but XPD rated considerably higher than Power Service. It's not readily available from an auto parts store from what I've found in the middle of nowhere, but may be on the shelf in more populated areas.

I'm also looking into your question about miles before overhaul. I feel like the DPF would be the first thing to go; of course, with 120k (or more) warranty on the thing, it isn't such a bad deal.

I agree on being the torque and mileage of the diesel. A Stage 2 3.0T will run circles around it but can still return decent mileage (folks have reported 30+ mpg). Something to consider. Or an S6, which has both displacement (4 L) and twin turbos, and can easy surpass 500 hp and lb-ft, and still return decent highway econcomy.

I need to spend more time reading through, but I've seen mention of deletes. It will definitely be on the to-do list. I've also read that a Malone tune would be a reliable bet for a quick upgrade. It appears the intake and exhaust aren't terribly restrictive on the 3.0 TDI. Which is a bit surprising considering that's where american auto makers choke the engine to meet standards.
Over 25mpg in a forced-inducted six cylinder gas/petrol vehicle is pretty impressive in my opinion, considering it would likely be 450+ hp. I would have to check insurance rates for the S6, I would imagine it's quite a jump in the premium considering it's a performance trim.
Your replies are incredibly helpful. Thank you!

[Audibot]

I forgot to mention Opti-Lube XPD as a fuel additive. I don't know if I can find the write up, but XPD rated considerably higher than Power Service. It's not readily available from an auto parts store from what I've found in the middle of nowhere, but may be on the shelf in more populated areas.



I need to spend more time reading through, but I've seen mention of deletes. It will definitely be on the to-do list. I've also read that a Malone tune would be a reliable bet for a quick upgrade. It appears the intake and exhaust aren't terribly restrictive on the 3.0 TDI. Which is a bit surprising considering that's where american auto makers choke the engine to meet standards.
Over 25mpg in a forced-inducted six cylinder gas/petrol vehicle is pretty impressive in my opinion, considering it would likely be 450+ hp. I would have to check insurance rates for the S6, I would imagine it's quite a jump in the premium considering it's a performance trim.
Your replies are incredibly helpful. Thank you!

I'll have to add Opti-Lube to the list to look at. A lot comes down to performance vs cost. Winter will be the best time to check, since fuel quality goes to crap, and the effects of additives are definitely more pronounced. At least has been my experience.

Regarding deletes, I just got done doing a DPF delete pipe install and being flashed with Malone Stage 2 (with EGR, Adblue, and DPF deletes). The stock DPF if terribly restrictive. I mean, it has to make a 180 degree turn right out the turbo. It's pretty bad. The rest of the exhaust and the intake are indeed pretty good. The MAF is the same as the Euro bi-turbo TDI, which is 313 hp stock.

I haven't gotten mine dyno'd yet, but it's certainly less restrictive and a lot more responsive. Malone's guestimate is that I should be up to about 265 whp (nothing on torque, but should be at least 470 wtq). You can sort of see how restrictive the exhaust is in this picture (but not the whole thing).

[67ITB]

I have a 2014 A6 TDI Prestige, owned it since new, and have had the diesel gate scandal updates applied.

I have 145K miles on it now.

Bone stock.

No issues to speak of. I just did my first wheel bearing, otherwhise just brakes and tires. I have been religiously sticking to the factory recommended services for oil changes and fuel filters.

I still get between 32-34 MPG on my commute (at the fill up, not on the dash) which is about ¾ % highway, the rest is surface roads with stoplights.

I have made several detailed posts about the differences post scandal updates if you can search by my name. Have to get running to an appointment right now so cutting it short.

Matt

[Gunmeister]

There are definitely low milage TDIs out there. I bought mine last November with 12k. And I just saw someone selling one in chicago a couple weeks ago with 8k miles.

2016 A6 TDI*|*Mugello Blue, Pearl Effect Exterior | Alabastar White Interior | Audi Exclusive Line | Eucalyptus Natural Wood Decorative Inlays | Prestige Package | Comfort Seating Package | Driver Assistance Package | S Line Sport Package | 20" Black Optic Package | Cold Weather Package | 18% Ceramic Film Windows | 70% Ceramic Film Windshield | Thinkware F800 Pro Dash Cam | Audi All Weather Mats*| Auto Hold Activated | ESCORT Radar Max 360c*| 1 of 1 for 2016

[DeepBlu6]

Bought my '16 last year with 6K on the ODO as new (dealer GM drove it part time while the sale hold was in place.) Got it for $40K OTD. All of the above is true, I do a large amount of highway driving and I get 38-42 mpg, avg about 36. Turbo lag is easily solved by dropping down a gear and this car will surprise many. What should not be a surprise is how long this motor pulls... to a verified 150+ and beyond.

Pros: Fit and finish is why Audi is known for. Real sleeper on the highway. Dieselgate warranty make this a long term low risk.
Cons: Brakes are the weak link, rotors are shot after 25K (was told this would be the case by the dealer). Turbo lag can catch you of guard at low speed. Tires are noisy at end of life (PZero's at 28K).

Hear lot's of upside about APR and Malone, but if I wanted a hot rod I would have gone with a RS Something. I'd love to drop the DPF/AdBlue but for what... 10hp and 3 mpg? Its a diesel, its not dead silent outside, but pretty manageable inside (I am on the phone in the car all the time and people complain about tire nose, not the motor.)

Next steps... BBK and S6 Rear Rotor upgrades, SS lines and PS4's. Otherwise... if Audi can win Le Mans with their diesel technology (and you should see what they offer in TDI mode in Europe), that's all the bragging points I need.

PS - To the assclown on the 5 freeway in his white hellcat charger who rolled up on me at 80mph... loud does not equal fast, and that was a TDI that just left your ass.


Duces.

[austintg]

I live in Houston, TX but picked up a Canadian 2016 A6 TDI with 9,700 miles on the ODO. It drives like a dream! Bartuning is recommending a tune, they're not being pushy, but they are talking about all of the benefits and asked for me to do some research if I wanted to. Anyone have feedback on reliability with a Malone Stage 2? I love the torque it has already but who doesn't want more? I have the Technik with B&O, S-Line, HUD, Night vision, anything you could ever want basically! The massage chairs are so awesome too.

[Wente3]

I'm not sure how to quote multiple replies at once.. So separating by time of reply.

Wow, that really is a crazy bend for hot exhaust gases. Does that ever pose a temperature problem with that tube in particular? I'd imagine it gets incredibly hot with all that heat and pressure pushing against a sharp curve like that. Heat tape might be something I look into with that.
I'll more than likely be doing deletes. The better everything breathes-the better it performs in terms of power delivery and efficiency.

This feedback is terrific, I'm so much more tempted to grab one now. That's considerably less than I've had to do on past vehicles before 110k.

I have a feeling anything under 30k miles is likely out of my price range. Still paying off student loans lol

That's honestly a bit disappointing about the brake rotors. May have to upgrade the system when I do pick one up. My current vehicle has a VGT, so I'm not that concerned about the lag. I'm pretty well used to it by now, I just enjoy the torque when it kicks in and the mileage.
I was also quite disappointed in P-zeros when I had my pony car. No wet traction, terrible longevity, and even heated up all they would do was spin. Although I'm a bit skeptical about stomping a hellcat on the freeway. On a curvy road, definitely. But straight-line I think the 600+ rwtq of the hellcat would pull away. Unless you've got some considerable upgrades, that is.

The creature comforts of the Audi lineup are part of why I was drawn to it. But I'm over 6ft tall, so one of the compacts wasn't going to go over too well I didn't think. I occasionally take road trips with a few friends and got accustomed to my crew cab pickup. Five years ago I wouldn't have minded a coupe like an A5. But all that room is handy and I want my passengers comfortable. Hopefully someone chimes in about Bartuning. I'd be sure and ask for some references before hooking anything up to a diesel. Parts get expensive fast.

-

This is some great feedback; looking forward to more.

[Audibot]

Pros: Fit and finish is why Audi is known for. Real sleeper on the highway. Dieselgate warranty make this a long term low risk.
Cons: Brakes are the weak link, rotors are shot after 25K (was told this would be the case by the dealer). Turbo lag can catch you of guard at low speed. Tires are noisy at end of life (PZero's at 28K).

Hear lot's of upside about APR and Malone, but if I wanted a hot rod I would have gone with a RS Something. I'd love to drop the DPF/AdBlue but for what... 10hp and 3 mpg? Its a diesel, its not dead silent outside, but pretty manageable inside (I am on the phone in the car all the time and people complain about tire nose, not the motor.)

Next steps... BBK and S6 Rear Rotor upgrades, SS lines and PS4's. Otherwise... if Audi can win Le Mans with their diesel technology (and you should see what they offer in TDI mode in Europe), that's all the bragging points I need.

PS - To the assclown on the 5 freeway in his white hellcat charger who rolled up on me at 80mph... loud does not equal fast, and that was a TDI that just left your ass.


Duces.

My brakes lasted much longer than 25k. So either your heavier on the brakes, or something was off. Also not great to drop down to 1st when 2nd is waiting for that lag to clear. DPF delete and Malone Stage 2 has eliminated the lag for me--it's great immediately no matter what speed I'm at. Helps with drivability, nothing to do with wanting "a hot rod". I mean, if it's not a hot rod, why bother with the brakes? /s

As you mentioned, tire selection is key for noise, handling, and mileage. Also, if you were able to leave a Hellcat, he wasn't trying, or it wasn't an actual Hellcat.

I'm not sure how to quote multiple replies at once.. So separating by time of reply.

Wow, that really is a crazy bend for hot exhaust gases. Does that ever pose a temperature problem with that tube in particular? I'd imagine it gets incredibly hot with all that heat and pressure pushing against a sharp curve like that. Heat tape might be something I look into with that.
I'll more than likely be doing deletes. The better everything breathes-the better it performs in terms of power delivery and efficiency.

This feedback is terrific, I'm so much more tempted to grab one now. That's considerably less than I've had to do on past vehicles before 110k.

I have a feeling anything under 30k miles is likely out of my price range. Still paying off student loans lol

That's honestly a bit disappointing about the brake rotors. May have to upgrade the system when I do pick one up. My current vehicle has a VGT, so I'm not that concerned about the lag. I'm pretty well used to it by now, I just enjoy the torque when it kicks in and the mileage.
I was also quite disappointed in P-zeros when I had my pony car. No wet traction, terrible longevity, and even heated up all they would do was spin. Although I'm a bit skeptical about stomping a hellcat on the freeway. On a curvy road, definitely. But straight-line I think the 600+ rwtq of the hellcat would pull away. Unless you've got some considerable upgrades, that is.

The creature comforts of the Audi lineup are part of why I was drawn to it. But I'm over 6ft tall, so one of the compacts wasn't going to go over too well I didn't think. I occasionally take road trips with a few friends and got accustomed to my crew cab pickup. Five years ago I wouldn't have minded a coupe like an A5. But all that room is handy and I want my passengers comfortable. Hopefully someone chimes in about Bartuning. I'd be sure and ask for some references before hooking anything up to a diesel. Parts get expensive fast.

-

This is some great feedback; looking forward to more.

I reply to multiple posts by selecting the "reply with quote", then copying everything, cancelling it, replying with quote to the next person, and pasting the copied quoted text in.

The only temperature concerns are for DPF regen. It's advised not to park on organic surfaces (grass, leaves, conifer needles, etc) because the DPF can get hot enough to light some of these on fire. But engine-wise, nothing really in danger there. It has the foil reflective insulation.

With the DPF delete (and the ceramic coating on it), the temperatures in the engine bay are WAY down, and the temperature within the pipe is also lower. Plus no concerns over regen setting fire.

I did upgrade my fronts because I was going to add more power to it. Never had issues with the originals, but the new ones definitely feel better with the extra pistons.

Regarding comfort, my previous B7 wasn't great until I added RS4 seats in. And my allroad is worn enough it sucks for more than a half hour. Also no real bolstering on those seats. But the A6, I've done 6 hour trips in it and it was always pleasant with the ventilated seats. I do not have massaging seats, which I can imagine would make it even better. And I have had passengers in the car for 4 1/2 hours (trip to/from certain airports) and no complaints from them over comfort.

Cannot comment on bartuning (never heard of them). Malone has been good for me so far. I'm going to continue taking inspiration from the euro guys w.r.t. any additional mods and such. Part prices aren't too bad though. Even a new injector pump can be had for $750 or less.

[bahiaeternal]

Have any of you high milage Tdi's replaced your tranny fluid, its a mystery since its not mentioned in the owners manual.

I bought a used 16 A7 back in 2017 with 22k. I now have 50k and have had a few oxygen sensors crap on me. I have the latest recall applied where they moved the O2 sensor and so far so good. I had a temp sensor go out on me that controlled the interior heat. Other than those things its been a blast to drive.

Make you find the post that allows Apple Car play to be installed on your C7.5.

[Audibot]

Transmission fluid is my list of things to do. I'm at 52k now, but will probably do it ~60k miles. Never hurts, and on my B7, helped a lot to restore crisp shifts and feel. "Lifetime" is nonsense.

Also, not everyone has Apple for CarPlay.

[202009]

I'll have to add Opti-Lube to the list to look at. A lot comes down to performance vs cost. Winter will be the best time to check, since fuel quality goes to crap, and the effects of additives are definitely more pronounced. At least has been my experience.

Regarding deletes, I just got done doing a DPF delete pipe install and being flashed with Malone Stage 2 (with EGR, Adblue, and DPF deletes). The stock DPF if terribly restrictive. I mean, it has to make a 180 degree turn right out the turbo. It's pretty bad. The rest of the exhaust and the intake are indeed pretty good. The MAF is the same as the Euro bi-turbo TDI, which is 313 hp stock.

I haven't gotten mine dyno'd yet, but it's certainly less restrictive and a lot more responsive. Malone's guestimate is that I should be up to about 265 whp (nothing on torque, but should be at least 470 wtq). You can sort of see how restrictive the exhaust is in this picture (but not the whole thing).

Awesome feedback, looks like you are one of the first on here to have a C7 TDI with a Stage 2 Malone and deletes.

Can you give a more elaborate review of the tune, in particular how is throttle response? You mentioned lag is gone, but is the throttle like an on/off switch (many tunes do a poor job of this) or is it more linear?

How straight forward was the "delete" install?

Any cabin smell or smell around the car?

Do you notice any black smoke under WOT?

Did you flash yourself or did you have it done at a shop?

Thanks.

[AndreiMTM]

BLUF I am very happy with my TDI.

While not specifically answering your 3 questions I will give you my experience with the A6 TDI.

I have a 2014 A6 TDI Prestige, S Line cold weather package, LEDs, no HUD, no B&O with 130K miles and so far it’s only needed routine maintenance. Tires, Brakes, Windshield Wipers, filters, and such.

I purchased it brand new in late 2014, and in 2016 the car sat for almost an entire year while I was away for work. So my miles are probably 75% highway.

Fortunately for me I can’t warn you about what to look for, but can reassure you if it’s been well maintained you can drive worry free like me.

About a year after the EPA fix I had my first and only check engine light! (122K miles)
VAGCOM scan said it was the diesel particulate filter. Took it to the dealer and it was a sensor and not the actual DPF. Either way it was fixed for free as part of the TDI warranty.
From the VAGCOM
15474 - Particulate Matter Sensor P24AE 00 [232] - Electrical Malfunction MIL ON -

Post EPA fix I feel its louder when warming up, gets slightly worse fuel economy (approximately 32.XX MPG verse 33.XX even 34.XX MPG before) and it generally runs at a higher RPM, (or maybe it’s in a lower gear?) around town, but if that’s all you know, you would never know its any different

Even post EPA fix from the outside of the car it’s not loud, but it’s loud for an Audi if that makes sense?

Its just slightly louder than you would expect for a luxury car, but from the cabin its still quiet. But again, if you didn’t know if pre EPA fix, its probably not noticeable.

Interesting comment above about the quality of diesel, as I generally use only 2 fuel stations so have never paid attention to what they have but will have to see what their cetane rating is.

I have a few other write-ups about the A6 TDI if you want to search by my name. Since so few of us post about the TDI I feel obligated to reply to the questions.

The car is an amazing tank in the snow, has great torque, and a smooth highway cruiser.

Matt

That’s great to hear that you are at 130k miles with only routine maintenance. I have 66k miles on my TDI and wanted to ask if you have any chain rattle on startups? Just curious if you have/had for a while and if it has any effects long term. Seems like a handful of people experience it with a few saying it will not cause issues.

As far as the TDI engine goes for the OP, I absolutely love my 14 a6. The combination of power/mpg/luxury/AWD is unparalleled. For this money I honestly don’t think there is a better car out there that offers more, or the same on terms of those 4 items. Even in triple digit speeds for long road trips the car gets over 30mpg. Really amazing car and I enjoy every second behind the wheel.


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[AndreiMTM]

That’s great to hear that you are at 130k miles with only routine maintenance. I have 66k miles on my TDI and wanted to ask if you have any chain rattle on startups? Just curious if you have/had for a while and if it has any effects long term. Seems like a handful of people experience it with a few saying it will not cause issues.

As far as the TDI engine goes for the OP, I absolutely love my 14 a6. The combination of power/mpg/luxury/AWD is unparalleled. For this money I honestly don’t think there is a better car out there that offers more, or the same on terms of those 4 items. Even in triple digit speeds for long road trips the car gets over 30mpg. Really amazing car and I enjoy every second behind the wheel.


Sent from my iPhone using Tapatalk

Sent from my iPhone using Tapatalk

[Burnt]

Do yall happen to smell diesel exhaust in the cabin when you're at a light or something? I feel like I smell exhaust more when the car regens, and it definitely regens more after the recall. I've smelt the exhaust cruising back home and no other cars are in the street

[202009]

Transmission fluid is my list of things to do. I'm at 52k now, but will probably do it ~60k miles. Never hurts, and on my B7, helped a lot to restore crisp shifts and feel. "Lifetime" is nonsense.

Also, not everyone has Apple for CarPlay.

Seems people with ZF transmissions that have gone past 120k miles on original fluid are not having any issues with the way the tranny shifts. Some recommend changing it at 100k miles. Then you have the ZF website stating "However ZF explicitly recommends a 100,000 km or 8 year (whichever comes first) fluid change schedule on their website here:"

https://www.zf.com/usa_canada/en_us/...hange_oil.html

If you decide to, here is a spec sheet and procedure for changing of fluid:

https://f30.bimmerpost.com/forums/at...8&d=1543532660

Video on youtube of the process and part numbers of the "kit"

https://www.youtube.com/watch?v=yFS35nlZ0Gc


2011-2014, 2009-2017 zf 8 hp speed Audi B8 Q5 3.0T quattro transmission pan filter, transmission oil change
obk 0bk 8-Speed Automatic Transmission Service Kit
Mfg Part #
0BK398009KT3
0BK398009A
Other models
2011-2015 Audi A4 quattro
2013-2015 Audi allroad
2011-2015 Audi A5 quattro
2012-2015 Audi A6 quattro
2012-2015 Audi A7 quattro
2011-2015 Audi A8 quattro
2011-2015 Audi Q5
2014-2015 Audi RS7 (thru 5/1/2015)
2013-2015 Audi S8
2014-2015 Audi SQ5


DIY write up from Audiworld:

https://www.audiworld.com/forums/a6-...speed-2919359/

[DeepBlu6]

My brakes lasted much longer than 25k. So either your heavier on the brakes, or something was off. Also not great to drop down to 1st when 2nd is waiting for that lag to clear. DPF delete and Malone Stage 2 has eliminated the lag for me--it's great immediately no matter what speed I'm at. Helps with drivability, nothing to do with wanting "a hot rod". I mean, if it's not a hot rod, why bother with the brakes? /s

As you mentioned, tire selection is key for noise, handling, and mileage. Also, if you were able to leave a Hellcat, he wasn't trying, or it wasn't an actual Hellcat.

Oh it was, and he was (up until he got a little uncomfortable at about 120) and I'm not stock.


What did you end up going with on the BBK?