need help with codes (and warranty) on 2015 jetta

[jerryfreak]

CEL on so i ran the codes. reset it and it came back on, but a week later it went off

see notes in bold red

first scan @ ~102800 mi:

-------------------------------------------------------------------------------
Address 01: Engine (J623-CVCA) Labels:. 04L-907-309-V1.clb
Part No SW: 04L 906 016 AJ HW: 04L 907 309 K
Component: R4 2.0l TDI H20 9286
Revision: 8AH20---
Coding: 01190012042410084000
Shop #: WSC 26105 444 00000
ASAM Dataset: EV_ECM20TDI01104L906016AJ 004011
ROD: EV_ECM20TDI01104L906016AJ_004.rod
VCID: 71E92361A03A0C0EF4-8024

3 Faults Found:
4523 - Control Module 1 for Coolant Fan
P1946 00 [040] - Defective
Intermittent - Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 64
Mileage: 161122 km
Date: 2022.05.31
Time: 20:09:11

Engine speed: 2278.50 /min
Normed load value: 52.2 %
Vehicle speed: 89 km/h
Coolant temperature: 91 °C
Intake air temperature: 124 °C
Ambient air pressure: 940 mbar
Voltage terminal 30: 14.200 V
Unlearning counter according OBD: 40
Air mass: specified value: 250.0 mg/stroke
Coolant temp. sensor 1 bank 1 at cylinder head: raw value: 29.0 °C
Heat delivery temperature in cooling system: -273.1 °C
Extern.temp.sens.1 bank 1: raw value: 16.5 °C
Coolant fan 1: activation: 10.00 %
Fuel temp. sensor 1 bank 1: raw value: 40.7 °C

28653 - Reductant System Performance Bank 1
P204F 00 [096] - Malfunction
Intermittent - Not Confirmed - Tested Since Memory Clear

21467 - Mass Airflow Sensor 1
P00BC 00 [236] - Airflow too Low
MIL ON - Intermittent - Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 254
Mileage: 162230 km
Date: 2022.06.13
Time: 11:46:22

Engine speed: 1718.50 /min
Normed load value: 58.0 %
Vehicle speed: 102 km/h
Coolant temperature: 92 °C
Intake air temperature: 102 °C
Ambient air pressure: 850 mbar
Voltage terminal 30: 13.900 V
Unlearning counter according OBD: 40
Mass airflow sensor 1 bank 1 airflow: raw value: 427.6 mg/stroke
Standardized airflow ratio: filtered: 1.2622
Exhaust recirc.valve 1 bank 1: posit.feedback - Act.value: 0.02 %
Throttl.valve adapt. 1 bank 1: posit feedback - Act.value: 46.19 %
Charge air pressure specified value: 1219 hPa
Charge air cooler inlet: pressure sensor 1 bank 1: raw value: 1224.8 hPa
Mean injection quantity: 17.56 mg/stroke

Readiness: 1 1 0 0 0

-------------------------------------------------------------------------------

reset codes, 30 miles later, only mass airflow sensor remained:

-------------------------------------------------------------------------------
Address 01: Engine (J623-CVCA) Labels:. 04L-907-309-V1.clb
Part No SW: 04L 906 016 AJ HW: 04L 907 309 K
Component: R4 2.0l TDI H20 9286
Revision: 8AH20---
Coding: 01190012042410084000
Shop #: WSC 26105 444 00000
ASAM Dataset: EV_ECM20TDI01104L906016AJ 004011
ROD: EV_ECM20TDI01104L906016AJ_004.rod
VCID: 71E92361A03A0C0EF4-8024

1 Fault Found:
21467 - Mass Airflow Sensor 1
P00BC 00 [236] - Airflow too Low
MIL ON - Intermittent - Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 85
Mileage: 165552 km
Date: 2022.08.02
Time: 22:04:13

Engine speed: 1584.00 /min
Normed load value: 100.0 %
Vehicle speed: 43 km/h
Coolant temperature: 61 °C
Intake air temperature: 64 °C
Ambient air pressure: 850 mbar
Voltage terminal 30: 14.140 V
Unlearning counter according OBD: 40
Mass airflow sensor 1 bank 1 airflow: raw value: 407.6 mg/stroke
Standardized airflow ratio: filtered: 1.1141
Exhaust recirc.valve 1 bank 1: posit.feedback - Act.value: 0.27 %
Throttl.valve adapt. 1 bank 1: posit feedback - Act.value: 0.00 %
Charge air pressure specified value: 1558 hPa
Charge air cooler inlet: pressure sensor 1 bank 1: raw value: 987.8 hPa
Mean injection quantity: 29.06 mg/stroke

Readiness: 1 1 0 0 0

----------------------------------------
drove 1200 miles, CEL went off at some point, ran codes again just now:

3 Faults Found:
4523 - Control Module 1 for Coolant Fan
P1946 00 [044] - Defective
Intermittent - Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 29
Mileage: 165688 km
Date: 2022.08.03 <----does this mean this intermittent problem happened once, three weeks ago? the scan above from 8/2 had a date of 5/31.
Time: 10:20:06

Engine speed: 1883.00 /min
Normed load value: 59.6 %
Vehicle speed: 111 km/h
Coolant temperature: 91 °C
Intake air temperature: 118 °C
Ambient air pressure: 850 mbar
Voltage terminal 30: 14.000 V
Unlearning counter according OBD: 40
Air mass: specified value: 250.0 mg/stroke
Coolant temp. sensor 1 bank 1 at cylinder head: raw value: 48.5 °C
Heat delivery temperature in cooling system: -273.1 °C
Extern.temp.sens.1 bank 1: raw value: 32.0 °C
Coolant fan 1: activation: 79.80 %
Fuel temp. sensor 1 bank 1: raw value: 40.1 °C

8844 - Torque Difference Cylinder 3
P1006 00 [096] - Limit Value Exceeded
Intermittent - Not Confirmed - Tested Since Memory Clear

21467 - Mass Airflow Sensor 1
P00BC 00 [104] - Airflow too Low
Intermittent - Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 254
Mileage: 165552 km
Date: 2022.08.02 <--- same, does this mean this is an intermittent problem that happened 3 weeks ago? or that it went out of spec and stayed non-functional since then?
Time: 22:04:13

Engine speed: 1584.00 /min
Normed load value: 100.0 %
Vehicle speed: 43 km/h
Coolant temperature: 61 °C
Intake air temperature: 64 °C
Ambient air pressure: 850 mbar
Voltage terminal 30: 14.140 V
Unlearning counter according OBD: 36
Mass airflow sensor 1 bank 1 airflow: raw value: 407.6 mg/stroke
Standardized airflow ratio: filtered: 1.1141
Exhaust recirc.valve 1 bank 1: posit.feedback - Act.value: 0.27 %
Throttl.valve adapt. 1 bank 1: posit feedback - Act.value: 0.00 %
Charge air pressure specified value: 1558 hPa
Charge air cooler inlet: pressure sensor 1 bank 1: raw value: 987.8 hPa
Mean injection quantity: 29.06 mg/stroke

Readiness: 0 1 0 0 0

-------------------------------------------------------------------------------

 

[jerryfreak]

so this was bought post-dieselgate and has the warranty. iirc it was something like 10 years/120K

the DEF injector at the engine is crusting up but not throwing codes, i would think it would be under warranty because its emissions

I went to the stealer and they wouldnt confirm if any of the parts are under warranty and wanted me to commit to $160 per code upon dropping it off in case the warranty wasnt applicable (!)

does anyone know if any of the affected components are covered under the warranty?

i see the MAF is $140 and obviously an easy fix which is kinda right on the limit of what id pay vs taking my car in and wasting a day

Bosch OE Mass Airflow Sensor MAF (CKRA)(CRUA)(CVCA)

This is an OE replacement MAF for 2012-2014 CKRA Passat (CKRA engine) and all 2015 4-cylinder models including engine code CVCA & CRUA. This is a new (not remanufactured) genuine Bosch par...

www.idparts.com

i dont see a part anywhere for " 4523 - Control Module 1 for Coolant Fan", is that a small relay box on the fan itself? Looking from the top i dont see the connector, is it accessible from the bottom after removal from the engine cover? I cn check the wiring but i know for sure i hear it running all the time when idling or stopping on a hot dy. ahvent looked to see if both fans are operating in that state

also whats up with " 8844 - Torque Difference Cylinder 3 "? is it of concern?

thanks as always!

 

[oilhammer]

You are overthinking it. It is all covered. Don't try and help them unless you want to just fix it yourself. They do not need nor want your help.

 

[Lightflyer1]

Anything that sets a code except for the trans is covered.

 

[jerryfreak]

just wondering about the possibility of them screwing me. they wont even look at it without me putting down an authorization for $500

 

[oilhammer]

Oh you've already gotten screwed... the 2015 in your driveway did that. Now it is just a case of figuring out if you're going to get kissed or not, and how many second dates you want.

FWIW, the 2015s seem to so far been less problematic than the earlier cars, I think mostly because they got past some of the teething issues, and the SCR system was a little better to begin with, DEF injector/line leaks aside.

I have had customers ping-pong back and forth from me to the dealer countless times. It has to suck. And they (the dealers) absolutely HATE these cars like poison. They despise them. Imagine taking your dog to a vet that hates dogs.

But to expand on how the warranty system works: the dealer plugs your car in to their system via the DLC, and then the system uploads a bunch of information to their system, and then they wait for verification from someone higher up. It isn't anyone at the dealer that is making these decisions unilaterally. They need an authorization from the goons higher up, or they will not be reimbursed for the work performed. And to add insult to injury, they are not getting a full time payout for anything they do under this warranty. The techs lose. Been there, done that, got the sore butt hole.

And, in talking to our parts guy just this week (our shop buys a new Volkswagen's worth of parts every month), Volkswagen REALLY underestimated what this warranty extension nonsense was going to cost them. The average payout has been around 9 times what they banked on... no kidding.

 

[Lightflyer1]

just wondering about the possibility of them screwing me. they wont even look at it without me putting down an authorization for $500

Not uncommon at most dealers for the initial charge. Usually removed if there is warranty work, and this most certainly would be, just needs approval as OH said. In the days past they used to give you a diagnosis and estimate. Then some went home and bought their own part and fixed it. No one does that any more for the most part. But they charge for a diagnosis now. Everything is computers so that also comes into play.

 

[JELLOWSUBMARINE]

$500 diag authorization now? Sh!t... the last and final visit for my CPO work VW wanted one hour authorization IF it wasn't covered. Not that terribly long ago most dealerships would even check for free hoping to get some warranty work or a customer pay (Ford anyway)

 

[Lightflyer1]

Times are different now and there seem to be long wait times to get in. My wife's Hyundai got an appointment months out for any real work. Every commercial garage I have seen lately asks for a diagnosis fee. Usually waived if they do the work. Nothing really new here other than the latest difficulties.

 

[jerryfreak]

OK she’s in the shop. They mentioned that it is due for an emissions recall. I don’t want them to mess my mileage up. What is the deal with the ‘23Y8’ upgrade?

 

[Lightflyer1]

A quick search found this:

https://www.vwcourtsettlement.com/wp-content/uploads/2018/04/Approved-Emissions-Modification-Notice-Volkswagen-Generation-3-TDI-Vehicles-Phase-2.pdf

There was a part 2a and part 2b depending on your mileage at the time. Under that and no part 2b till later. If you are at 35k as in your sig I think you are under the limit still. I am in the same boat and have repeatedly told my dealer service dept to note in my files not to do the part 2b till I approve. It is in right now for a def injector leak.

 

[jerryfreak]

Bought at ~35. Has 100K now

 

[jerryfreak]

Sounds like I want to put it off as long as possible, up to 150k, to get the new dpf, scr and cat? And also extend the warranty another 60k?

 

[jerryfreak]

just as you guys advised, they are covering everything under warranty, we got a loaner. told them not to do the phase 2, will push it out as long as possible

Q: if you find a used one on the market, is the warranty still valid, if youre not the original/CPO buyer? if so, most would still have 4 or more years of warranty on them

 

[Lightflyer1]

Warranty follows the car not the person. If it meets the time/mileage numbers it is covered.

 

[jerryfreak]

hmm so had it back less than a week and it died while driving. cranks cleanly but sounds like no fuel, catches some once in awhile but not enough to start

codes:
2 Faults Found:
4114 - Camshaft Position Sensor (G40)
P0340 00 [100] - Malfunction
Intermittent - Not Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 2
Mileage: 169228 km
Date: 2022.09.21
Time: 16:48:07

Engine speed: 1442.50 /min
Normed load value: 100.0 %
Vehicle speed: 85 km/h
Coolant temperature: 90 °C
Intake air temperature: 111 °C
Ambient air pressure: 840 mbar
Voltage terminal 30: 14.140 V
Unlearning counter according OBD: 40
Engine start: start synchronization: EPM_MODE_OK
Engine start: start synchronization-Test_Program_Epm st Op Mode State t UBYTE: 48

4096 - Bank 1: CMP Sensor (G40) / Engine Speed Sensor (G28)
P0016 00 [101] - Incorrect Correlation
Not Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 1
Mileage: 169228 km
Date: 2022.09.21
Time: 16:48:09

Engine speed: 1351.50 /min
Normed load value: 0.0 %
Vehicle speed: 80 km/h
Coolant temperature: 90 °C
Intake air temperature: 107 °C
Ambient air pressure: 840 mbar
Voltage terminal 30: 14.140 V
Unlearning counter according OBD: 40
Engine start: start synchronization: EPM_MODE_OK
Engine start: start synchronization-Test_Program_Epm st Op Mode State t UBYTE: 48

-------------------------------------------------------------------------------
Address 09: Cent. Elect. (J519) Labels:. 7H0-937-08x-09.clb
Part No SW: 7H0 937 090 E HW: 7H0 937 090 A
Component: BCM PQ25 Max3 H78 0725
Revision: B8078001 Serial number: 78003330141733
Coding: 7B994B1808AB0B0000382080240884C50F86702E60000050B00010022844
Shop #: WSC 00066 000 00000
VCID: 306FE66563B04506BB-8064

Subsystem 1 - Part No SW: 6R0 959 801 AN HW: 6R0 959 801 AN Labels: 6R0-959-801.CLB
Component: J386__TSG_FT 006 5461
Serial number: 14102585141027173730
Coding: 820000

Subsystem 2 - Part No SW: 6R0 959 802 AS HW: 6R0 959 802 AS Labels: 6R0-959-802.CLB
Component: J387__TSG_BT 006 5461
Serial number: 14102584141022104659
Coding: 820000

Subsystem 3 - Part No SW: 6C0 959 442 A HW: 6C0 959 442 A
Component: E221__MFL-TAT H04 0019
Serial number: 2811422085802095AD1B
Coding: 280000

Subsystem 4 - Part No SW: 6R0 959 811 M HW: 6R0 959 811 M
Component: J388__TSG_HL 006 5460
Serial number: 14102587141028063538
Coding: 800000

Subsystem 5 - Part No SW: 6R0 959 812 M HW: 6R0 959 812 M
Component: J389__TSG_HR 006 5460
Serial number: 14102586141103202236
Coding: 800000

 

[jerryfreak]

the engine speed sensor looks relatively terrifying as it seems it can be thrown for any number of serious mechanical issues

but... could the camshaft sensor failing by itself be enough to make the engine speed sensor freak out and sense 'incorrect correlation'?

and all the central electrical issues.. makes me think the techs at the dealer didnt properly connect a key harness to multiple components. where to begin? the camshaft sensor is under the plastic engine cover on the head i assume?

 

[Shoveltrev]

unfortunately your probably gonna find it jumped timing. verify its in time first

 

[jerryfreak]

well as feared it did jump timing

the dealer determined that the cam seal was leaking and soaked the belt in oil causing failure. As mentioned earlier in the thread it was just out of the dealer four days after replacement of the cooling fan assembly (failed controller) and an mass airflow senseo code (was an air leak at turbo)

the engine is toast

they want 15K to put a new long block in and the dealer has offered to cover half of the cost out of the "good will" allowance VWOA gives them. Im not sure who pays this, dealer or VWOA.

ive gone through VWOA customer care and it went nowhere. they have officially determined that due to the nature of the failure it is not covered under the TDI emissions warranty (and it is just out of 100K powertrain warranty) so VWOA is taking no responsibility

Ive attempted to escalate it above the case manager and am waiting to hear back tomorrow.

Ive been advised by some that i need to get contact for the brass at VW and attempt to work from top down. Ive been unuccessful in finding contacts for any relevant people after a decent search.

Advice? Try to keep pushing, possibly from top down? lawyer up? walk away and sell car for scrap? dont really have the $7500 right now other than to throw on a CC at interest.

Thanks

 

[oilhammer]

You got them to cover half, on a car that is out of warranty. That's not too bad, really. Still stinks, I know, but at least they are giving you something. Of course, actually getting parts...

 

[Jr mason]

I think their offer is very fair. This is a failure that could happen to any interference engine. They are ponying up a lot of money for an almost 8 year old engine with over 100k miles....

That being said I understand your quandary. I could not stomach it either especially given the failure history of these cars. Even more so if you can't delete and are stuck with the emissions for life. . If you are mechanically savvy a rebuild would be much more economical assuming you didn't trash the block.

 

[Shoveltrev]

sad thing is there is a complete engine with 32,000 miles local in a salvage yard for 1250.00 2500.00to put it in there .

 

[jerryfreak]

@oilhammer are you saying the car is a poor investment for the long run as parts will not be available down the road?

 

[oilhammer]

We struggle to get parts for all kinds of things.... just yesterday, 2021 Rogue... an air filter element. A freaking air filter element. Can't get one. Nissan dealer is out, has been out. None available in the aftermarket yet (their lookup is wrong).

The current situation is a global Sh---show....

 

[jerryfreak]

oh i see, its more a result of the (hopefully transient) supply chain issue and not necessarily that VW and oems are not supporting this (relatively rare?) platform. I remember the EA288 series was supposed to be a universal global platform but obvious it was one and one in US. I dont know how many more were made worldwide in subsequent years

 

[ticaf]

Has anybody worked on the timing belt / water pump before?
I find it hard to believe a catastrophic cam seal failure would not be covered under emissions warranty.

 

[jerryfreak]

believe it. that's the story the service manager, VW customer care rep, and the customer care rep's supervisor is sticking to. Guess i have to pony up, absent any other options.

 

[oilhammer]

Heck, even the grocery store shelves have bunches of empty spots.... and what is there has prices creeping up almost weekly now. If it gets much worse, I'm going to be exploiting my small plot of land for food plots and restock the chicken coop with hens.

...and late last night before I left, found out GM has once again run out of turbochargers for the early style 1.4L engines that these miserable little penalty turd box Chevy Trax all use. We had three of those worthless ****cans stranded here last year.

 

[Jr mason]

China must be hoarding the parts for them...

 

[tubbyty]

First of all, thak you to everyone for their expertise on here, it is a VERY helpful community.

My 2015 Jetta TDI (177k miles) threw this code a couple weeks back. I was due for a new air filter, so thought maybe swapping it out would help. It didn't. So I tried cleaning the Mass Air Flow sensor, first with the MAF spray then with the "soaking it in propanol" method - neither worked. Finally broke down and ordered a new MAF ($90, Bosch: https://www.autozone.com/engine-man...r-0281002956/170656_0_0?searchText=0281002956). Showed up the next day and that fixed the issue.

Some additional notes:

1. I broke the retaining clip, as many others have. Tried to pull it up as directed. Ended up having to use my smallest allen wrench to pop it up from underneath. I didn't replace the clip, the MAF plug seats pretty tight without it. If it starts working its way off, I'll simply secure it down with a zip tie.

2. I was having the usual symptoms for some time but didn't connect it to the MAF sensor because the check engine light hadn't come on. I had noticed a significant decrease in mileage two years ago (~45 mpg down to ~35 mpg) and did everything I could think of (changed air filter, changed gas filter, etc). Finally, I just said, "meh, must be old age". My first tank with the new MAF sensor is right back to 45 mpg.

3. Another symptom was longer start times. I attributed it to an older battery but hadn't gotten around to swapping it out yet. Fires right up now.

4. My son was riding with me a couple of days ago and he said, "dad, why is the engine so quiet?" I hadn't realized it, but it had been knocking louder than it should have for a diesel. Pretty quiet now.

Of course, this is anecdotal, I don't have the data for a controlled experiment. The only thing I can say for certain is that the check engine light is gone and the gas mileage is up. Makes me think I should have swapped out the MAF the minute I noticed the decrease in mileage. Something to think about if you notice similar issues.

That's a long way of saying thanks to all of you for helping me solve this issue!

Cheers,

Tubby