Engine Code CNRA - ???? - Club Touareg Forums
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post #1 of 11 Old 12-28-2017 Thread Starter
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Engine Code CNRA - ????

Due diligence does NOT pay off. Sigh...

I simply cannot find any information on the CNRA engine code. Several EKTA decoding sites list NO such engine code. I've been interested in ordering some maintenance items, and the sites that use engine codes to look up parts only have CNRB listed. Probably the same (??) but I am uncertain now.

This code appears when holding the trip reset button for 10 seconds with ignition on. The code ALSO appears as the engine code using VCDS Ross-Tech software.

CNRB seems to be the predominant engine code for the 3.0 TDI for 2013 onward, but my 2013 Touareg TDI Sport w/Tech is a CNRA. I wonder what the differences are ?

I recently had the Emissions Compliant repair performed 12-7-2017 , which included a few new SCR parts as well as software changes.

I may (maybe) get a tune next year if towing performance is down compared to the pre-repair.
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post #2 of 11 Old 12-31-2017 Thread Starter
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Wait....WHAT???

Quote:
Originally Posted by ToolmanJohn View Post
Due diligence does NOT pay off. Sigh...

I simply cannot find any information on the CNRA engine code. Several EKTA decoding sites list NO such engine code. I've been interested in ordering some maintenance items, and the sites that use engine codes to look up parts only have CNRB listed. Probably the same (??) but I am uncertain now.

This code appears when holding the trip reset button for 10 seconds with ignition on. The code ALSO appears as the engine code using VCDS Ross-Tech software.


CNRB seems to be the predominant engine code for the 3.0 TDI for 2013 onward, but my 2013 Touareg TDI Sport w/Tech is a CNRA. I wonder what the differences are ?

I recently had the Emissions Compliant repair performed 12-7-2017 , which included a few new SCR parts as well as software changes.

I may (maybe) get a tune next year if towing performance is down compared to the pre-repair.
...I guess I am wrong?? I just checked my engine code again using the trip reset method... CNRB....Huh...How'd that happen???

Fascinating... I have a SAVED Vag-Com scan from August 2017 that clearly shows CNRA.


Sunday,06,August,2017,08:23:48:31936
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 10 x64
VCDS Version: 17.8.0.1 (x64) HEX-V2 CB: 0.4401.4
Data version: 20170721 DS276.2
Ross-Tech: Home

Address 01: Engine (J623-CNRA) Labels:. 059-907-401-V2.clb
Part No SW: 7P0 907 401 K HW: 7P0 907 401 K
Component: 3.0TDI EDC17 H17 0004
Revision: 56H17---
Coding: 292A4012233600050000
Shop #: WSC 57102 001 1048576
ASAM Dataset: EV_ECM30TDI0117P0907401K 001005
ROD: EV_ECM30TDI0117P0907401K.rod
VCID: 372823AC7FCA48BFAA0-8062

No fault code found.
Readiness: 0 0 0 0 0




Now, the trip reset method is showing CNRB, this is since the emissions compliant repair in early December.... I think VW did something during the emission repair. Updated the ECU to show CNRB?? I don't know yet.

I'm going to do another scan a little later. Very interested in seeing if my "new" engine is scanned as CNRB....
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post #3 of 11 Old 01-05-2018
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Quote:
Originally Posted by ToolmanJohn View Post
Due diligence does NOT pay off. Sigh...

I simply cannot find any information on the CNRA engine code. Several EKTA decoding sites list NO such engine code. I've been interested in ordering some maintenance items, and the sites that use engine codes to look up parts only have CNRB listed. Probably the same (??) but I am uncertain now.

This code appears when holding the trip reset button for 10 seconds with ignition on. The code ALSO appears as the engine code using VCDS Ross-Tech software.

CNRB seems to be the predominant engine code for the 3.0 TDI for 2013 onward, but my 2013 Touareg TDI Sport w/Tech is a CNRA. I wonder what the differences are ?

I recently had the Emissions Compliant repair performed 12-7-2017 , which included a few new SCR parts as well as software changes.

I may (maybe) get a tune next year if towing performance is down compared to the pre-repair.
do you feel any difference after the EPA fix? thanks

Sent from my Pixel 2 XL using Tapatalk
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post #4 of 11 Old 01-06-2018 Thread Starter
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Quote:
Originally Posted by bioturbo View Post
do you feel any difference after the EPA fix? thanks

Sent from my Pixel 2 XL using Tapatalk
1) Cold weather startup (December in Connecticut) is noisier, but once the engine is fully warmed up, just as quiet as before. It does seem to warm up faster?? This is entirely subjective, I have never measures how long until the climate control system starts blowing warm air, but it seems to be sooner than before, and it had been VERY cold in Connecticut recently.

2) Active Engine Braking IS noticeably diminished, and is noticeable, but only when it's fully warmed up. I have a very steep steep street to descend from home. I have noticed that the Touareg doesn't hold it's speed like it used to. It slowly starts to accelerate, and I have to apply brake more often to control speed. I guess I'll be changing the pads soon. ( I have NOT done the brakes on the Touareg yet, but the front pads are down to about 3mm - 3.5mm, so it will be this Summer probably).

3) Hard to tell is fuel economy has been harmed. The cold weather always drops fuel economy 1-2 mpg in the Winter. I haven't done a calculation yet. Maybe in the Spring.

4)Seems just as powerful as before, I cannot tell a difference in power. It accelerates the same. Haven't had the chance to tow my camper toy hauler, but in the Spring I'll know if there's a difference in power.

Otherwise, it has no difference in driving that I can notice. It has over 70,000 miles on it, so if it were obvious, I would notice.
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post #5 of 11 Old 01-06-2018
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Quote:
Originally Posted by ToolmanJohn View Post
Due diligence does NOT pay off. Sigh...

I simply cannot find any information on the CNRA engine code. Several EKTA decoding sites list NO such engine code. I've been interested in ordering some maintenance items, and the sites that use engine codes to look up parts only have CNRB listed. Probably the same (??) but I am uncertain now.

This code appears when holding the trip reset button for 10 seconds with ignition on. The code ALSO appears as the engine code using VCDS Ross-Tech software.

CNRB seems to be the predominant engine code for the 3.0 TDI for 2013 onward, but my 2013 Touareg TDI Sport w/Tech is a CNRA. I wonder what the differences are ?

I recently had the Emissions Compliant repair performed 12-7-2017 , which included a few new SCR parts as well as software changes.

I may (maybe) get a tune next year if towing performance is down compared to the pre-repair.
I checked pre fix scan from my 13 tdi and found the same code. Haven't checked post fix yet.
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post #6 of 11 Old 01-06-2018
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Quote:
Originally Posted by ToolmanJohn View Post
1) Cold weather startup (December in Connecticut) is noisier, but once the engine is fully warmed up, just as quiet as before. It does seem to warm up faster?? This is entirely subjective, I have never measures how long until the climate control system starts blowing warm air, but it seems to be sooner than before, and it had been VERY cold in Connecticut recently.

2) Active Engine Braking IS noticeably diminished, and is noticeable, but only when it's fully warmed up. I have a very steep steep street to descend from home. I have noticed that the Touareg doesn't hold it's speed like it used to. It slowly starts to accelerate, and I have to apply brake more often to control speed. I guess I'll be changing the pads soon. ( I have NOT done the brakes on the Touareg yet, but the front pads are down to about 3mm - 3.5mm, so it will be this Summer probably).

3) Hard to tell is fuel economy has been harmed. The cold weather always drops fuel economy 1-2 mpg in the Winter. I haven't done a calculation yet. Maybe in the Spring.

4)Seems just as powerful as before, I cannot tell a difference in power. It accelerates the same. Haven't had the chance to tow my camper toy hauler, but in the Spring I'll know if there's a difference in power.

Otherwise, it has no difference in driving that I can notice. It has over 70,000 miles on it, so if it were obvious, I would notice.
thanks for sharing, I am thinking to get my 14tdi fixed.

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post #7 of 11 Old 01-06-2018 Thread Starter
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So here's the latest partial scan , I removed all the other scan details, just kept the engine scan intact... new engine scan reveals CNRB.

So it's interesting that the new emission update changed the engine code. I have no idea why..

Any malfunctions actually are not, I did not have the engine running, just ignition on, lights off, in the garage while the scan took place.



Saturday,06,January,2018,15:24:02:31936
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 10 x64
VCDS Version: 17.8.1.0 (x64) HEX-V2 CB: 0.4401.4
Data version: 20171130 DS276.6
www.Ross-Tech.co


Chassis Type: BP-VW52 (7P6)
Scan: 01 02 03 05 08 09 15 16 17 19 42 46 52 53 55 56 5F 62 65 69
6C 6D 72

VIN: Mileage: 115263km-71621miles

01-Engine -- Status: OK 0000
02-Auto Trans -- Status: OK 0000
03-ABS Brakes -- Status: OK 0000
04-Steering Angle -- Status: OK 0000
05-Acc/Start Auth. -- Status: OK 0000
08-Auto HVAC -- Status: Malfunction 0010
09-Cent. Elect. -- Status: OK 0000
15-Airbags -- Status: OK 0000
16-Steering wheel -- Status: OK 0000
17-Instruments -- Status: OK 0000
19-CAN Gateway -- Status: Malfunction 0010
42-Door Elect, Driver -- Status: OK 0000
46-Central Conv. -- Status: OK 0000
52-Door Elect, Pass. -- Status: OK 0000
53-Parking Brake -- Status: OK 0000
55-Headlight Range -- Status: Malfunction 0010
56-Radio -- Status: OK 0000
5F-Information Electr. -- Status: OK 0000
62-Door, Rear Left -- Status: OK 0000
65-Tire Pressure -- Status: Malfunction 0010
69-Trailer -- Status: OK 0000
6C-Back-up Cam. -- Status: OK 0000
6D-Trunk Elect. -- Status: OK 0000
72-Door, Rear Right -- Status: OK 0000
-------------------------------------------------------------------------------
Address 01: Engine (J623-CNRB) Labels:. 059-907-401-V2.clb
Part No SW: 7P0 907 401 K HW: 7P0 907 401 K
Component: 3.0TDI FSA H17 0011
Revision: 56H17---
Coding: 292A4012233600050000
Shop #: WSC 08088 444 00000
ASAM Dataset: EV_ECM30TDI0117P0907401K 001012
ROD: EV_ECM30TDI0117P0907401K.rod
VCID: 372823AC7FCA48BFABB-8062

No fault code found.
Readiness: 0 0 0 0 0
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post #8 of 11 Old 01-06-2018
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If we are assuming that VW did not just change the engine code due to an oversight, then a theory would be that the biggest difference between the CNRA and CNRB engines is in the emission controls.

If and A and B were emission updated with the same hardware...

Well, it is a theory.
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post #9 of 11 Old 01-06-2018 Thread Starter
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Quote:
Originally Posted by nickyt View Post
If we are assuming that VW did not just change the engine code due to an oversight, then a theory would be that the biggest difference between the CNRA and CNRB engines is in the emission controls.

If and A and B were emission updated with the same hardware...

Well, it is a theory.
That's probably most likely.
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post #10 of 11 Old 08-02-2018
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So I just bought a new 2016 TDI (trading the one in my profile) that has been modified and was curious about the engine code because of the extended warranty for CNRB coded vehicles.The sticker in the spare wheel well just has CNR,but holding down trip odometer revels CNRB.
I've not yet towed with new TDI to compare with the 2011....hope it pulls as well as the old!
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