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2010 TDI - Reductant (Adblue) Tank Pump Issue

70K views 60 replies 24 participants last post by  bman400  
#1 ·
I've had my 2010 TDI for almost two years now. Had the failed water pump issue which was resolved under warranty and had the convenience module replaced to correct the aggravating alarm going off when arming. I've put nearly 49K miles on it and thoroughly enjoyed every mile driven :D.

A few days ago the check engine light came on. Just having received my handy-dandy Ross-Tech VAG Com cable, I hook it up and VCDS pulled the following from the engine module:
*******************
Address 01: Engine (CAT) Labels: 059-907-401-CAT1.clb
Part No SW: 7L0 907 401 T HW: 7L0 907 401 K
Component: 3.0TDI EDC17G004AG 0050
Revision: 33H02--- Serial number: VWX3Z0I2876500
Coding: 0421002A590F0968
Shop #: WSC 25018 444 84477
VCID: 3C7D02227C70863

1 Fault Found:
008283 - Reductant Tank Temperature Sensor
P205B - 000 - Implausible Signal - MIL ON
Freeze Frame:
Fault Status: 11100000
Fault Priority: 2
Fault Frequency: 1
Mileage: 78383 km
Time Indication: 0
Date: 2012.02.11
Time: 09:43:25

Freeze Frame:
RPM: 1134 /min
Voltage: 14.36 V
Temperature: 13.5°C
Temperature: 50.4°C
Temperature: 21.6°C
Temperature: 11.8°C

Readiness: 1 1 0 0 0
******************
I took it in to the dealer and they diagnosed it as a problem with the reductant (Adblue) tank pump which apparently also contains the level and temperature sensor. In talking with my service advisor, I asked if this would be covered under the emission system warranty since the component is related to the emission system and the vehicle is designed to not operate without it properly functioning, but the answer was no. Apparently the federal mandate is specific in what parts are covered under the 8/80 Emissions Warranty, and the DEF components are not. So the extended warranty will be covering the replacement.

The part won't be in until next Tuesday, but my local dealership provided me with a loaner car (2012 Jetta).
 
#2 ·
That's a bummer it's not covered under the emissions warranty. But glad to hear there are no issues getting it done under the the extended one. Hopefully, this isn't a sign of things to come...
 
#3 ·
Thanks for the heads up. I have an appointment for this very thing next Monday. I have been dealing with it for awhile since I have not had time to take it in. You can clear the fault and it will last for a couple of days, but comes back. I have noticed no driving issues while having this error. I know it is just emissions and I am not in a hurry to get it resolved since PA does not even emissions test diesels. :)

I hope they can locate the part quickly and get it fixed. Mine will be getting replaced under the original warrant since I only have 22K on mine, but even if I did not have the original warrantly I have an extended as well. I hope it is not seriously involved repair for I don't trust the dealer I deal with now.
 
#4 ·
Thanks for the heads up. I have an appointment for this very thing next Monday. I have been dealing with it for awhile since I have not had time to take it in. You can clear the fault and it will last for a couple of days, but comes back. I have noticed no driving issues while having this error. I know it is just emissions and I am not in a hurry to get it resolved since PA does not even emissions test diesels. :)

I hope they can locate the part quickly and get it fixed. Mine will be getting replaced under the original warrant since I only have 22K on mine, but even if I did not have the original warrantly I have an extended as well. I hope it is not seriously involved repair for I don't trust the dealer I deal with now.
Same here just changed my adblue pump heater sensor, etc, etc module under warranty. I sent a email to VW to find out the warranty period on these emission parts and they did not reply. I guess I need to send them another email just to cofirm what the dealer told me: My VW servicing center told me that the parts are covered under the VW standard emissions warranty. They told me not to worry and it is covered. I asked them for how many years is it and they said they believe it is it 11 years. I hope VW emails me back with the same.


I hope this dealer is correct.
 
#6 ·
We have an 04 Jetta TDi and it developed the egr cooler crack. A few people on the web were able to get VW to pay for it in warrantee but we were not so lucky. VW was very good in getting out of paying for something they should have payed for. I even talked to a professional NO person. What an experience. In the end, VW recalled the egg cooler and reimbursed our repair cost (900$)

I love the new Touareg, but VW's history makes me a little nervous.

John
 
#7 ·
92c2targa#119 said:
Same here just changed my adblue pump heater sensor, etc, etc module under warranty. I sent a email to VW to find out the warranty period on these emission parts and they did not reply. I guess I need to send them another email just to cofirm what the dealer told me: My VW servicing center told me that the parts are covered under the VW standard emissions warranty. They told me not to worry and it is covered. I asked them for how many years is it and they said they believe it is it 11 years. I hope VW emails me back with the same.

I hope this dealer is correct.
Interesting. My service advisor told me the adblue pump module was not covered under the emissions warranty :-( . I'd be interested to hear what VW says. Fidelity sent a rep out to look at mine last Thursday and my service advisor called me Friday morning to let me know they would be covering the repair. Unfortunately, mine wasn't ready today.
 
#8 ·
It's Back...Finally

Picked up my Touareg from the dealership :D They apparently had some issue getting the right part. The first one that was shipped from Germany was the wrong part. Turned out the right part was sitting over in Ft Worth. Total for parts and labor came to 580 and change (I was shocked that it was this low). The VW Real Driver Platinum through Fidelity picked up all but my deductible.
 
#10 ·
Mine went in this morning and as suspected the part had to be ordered. I will be keeping the Jetta loaner until I get my Treg back Wednesday. :) I would not mind as much if it was a TDI as well, but got a 2.5 this time and not that impressed with that motor as the TDI. Service advisors do not like informed customers at all!! ;)
 
#11 ·
Same thing I got as a loaner... I simply couldn't stand to drive that car in D. Used the Tiptronic mode and it was a bit more drivable.
 
#13 ·
Treg is back and going off the paperwork I received I hope I never need to do this again without warranty. Apparently they have to remove the suitcase to get to the pump. They drained and removed the tank. Replaced the pump and reinstalled everything. I still smile reading the beginning of the work order where is states customer said it was scanned and came up as the adblue temp sensor bad. :) They never questioned me on that at all.
 
#16 ·
Update, pump replaced on Wednesday and picked up that day. Everything was great until I started it up today to leave to come home from work. CEL on again. I got home hooked up VCDS and temp sensor error is back. I promptly called my service rep from previous visit and told him it was on again and reading the same code. Going back in this coming Wednesday to see what is up again with it. I am glad it is on their dime! :)
 
#17 ·
Curious what they indicated that they replaced or repaired on your service receipt. I'll have to look more closely at mine when I get back home (traveling on business) but I think they applied a repair kit to the pump assembly on mine. I picked it up last Friday late afternoon and only had Saturday to drive it before I flew out on Sunday, so mines been parked in the garage all week.
 
#18 ·
enigma said:
Curious what they indicated that they replaced or repaired on your service receipt. I'll have to look more closely at mine when I get back home? (traveling on business) but I think they applied a repair kit to the pump assembly on mine. I picked it up last Friday late afternoon and only had Saturday to drive it before I flew out on Sunday, so mines been parked in the garage all week.
Yeah see if you get two days out of yours. That is about all I got out of mine. Personally I am not worried about it since I know it is just an emissions issue. Plus it's under warranty :)
 
#19 ·
Enigma, I did not reply to you the last time when you asked what they did to mine. It says on my paperwork replaced the pump, not repaired. Whether they truly did replace it I don't know. I do know it is back at the dealer today and I got an upgrade on the loaner car. Brand new Passat SE with less then 20 miles on it. Guy who did the paper work on it said I did not know we had any of these for a loaners. Apparently they decided to do one. :)
 
#20 ·
Update number two, the fix this time was what ever the repair kit thing was they did on Enigma's TDI. Apparently the first time the Tech line told them the wrong thing to repair and they got it right this time. My service advisor got real detailed with me on how they monitored the temp as well as electrical flow to the sensor. I got way more info then most probably wanted to ever hear about the situation. Not sure if it is because I was the one that told them what the error was before they go to look at it or not. :)
 
#22 ·
2010 T2 TDI with 54K miles, MIL went on approx. 500 miles back while pulling trailer up to Waterton, AB. Made side trip to dealer in Lethbridge, but MIL went out on the way. Stayed out while pulling trailer back to Montana, about 250 miles. MIL on a few days later. Took it to dealer for oil change and diag indicated "Reductant pressure too low". Dealer said something about an ECU update recall that was needed and they wanted to check pump output. Had to have vehicle for a few days to put trailer in storage, so will return to dealer tomorrow for ECU update and repair, wish me luck?!

Dealer called and said reductant pump is dead, and not covered under warranty. New pump is $835.00 plus $300.00 for labor and scan. My ad blue tank has never run out of fluid or thrown a low fluid warning.

Guess I should have stopped at the dealer in Lethbridge, maybe the Canadians would have replaced it under warranty.

After reading this thread plus the entire 13 page " Adblue system not covered under warranty" thread, I wonder, has anyone had their Adblue pump replaced after 3 yrs/36,000 miles. Also, since they had to reprogram the ECU due to a recall, is anyone aware of what that recall was for. I never received any notice about a recall.
 
#23 ·
Mine was during the warranty period, but wasn't there TSB on this? I would find out from your dealer about that if I were you. I just had the TSB of the some pressure sensor and software update on mine recently.
 
#28 ·
If I recall correctly, the AdBlue fix TSB was issued some time early to mid-October of 2012, but not later than November for sure. If you were visiting your dealer for the oil replacements while your vehicle was still on warranty back then, why did they ignore bringing the issue to your attention and applying new control module firmware? I think you can use this as your defensive argument. Good luck!
 
#25 ·
Had the problem three times

I have a 2010 Touareg TDI. It has had to have the ad blue pump and control module replaced twice and now it is in the shop for the third replacement. Car has 47K miles. Extended warranty might pay (don't know yet) but VW has not been good at all about standing behind this product. As soon as I get the car back from the dealer I plan to trade it for something other than a VW, and not a diesel. I have had many diesels over the last 30 years. This is the first one with the urea additive system. My research on similar systems in BMW and Merc diesels indicates the systems are just too prone to failure and expensive repair. This time I will get a high mileage gas car that is more reliable. To bad, cuz we love the Touareg otherwise.
 
#26 ·
I have a 2010 Touareg TDI. It has had to have the ad blue pump and control module replaced twice and now it is in the shop for the third replacement. Car has 47K miles. Extended warranty might pay (don't know yet) but VW has not been good at all about standing behind this product. As soon as I get the car back from the dealer I plan to trade it for something other than a VW, and not a diesel. I have had many diesels over the last 30 years. This is the first one with the urea additive system. My research on similar systems in BMW and Merc diesels indicates the systems are just too prone to failure and expensive repair. This time I will get a high mileage gas car that is more reliable. To bad, cuz we love the Touareg otherwise.
Sounds like you have a bad VW dealership, or technicians there, or service being performed with replacement of ad blue fluid.
 
#27 ·
Whatever it is, it has soured me on VW for good. I have a BMW that has been very attentively serviced by the BMW dealer, even after warranty expiration. We live a 4 hour drive from BMW dealer (through mountainous terrain) and only 45 mins from VW dealer, yet I will revert to BMW, as they stand behind their products much better than VW.
 
#32 ·
Good to know for all T3 types, but mine is a 2010 T2 and I believe there are significant differences in the ad blue systems of each. I am pretty sure the T3 has a larger tank (5.5 v 4.5 gallons) and who knows what else to accommodate that difference. So, don't believe those recalls were for the T2.
Still think it is quite lame that vw doesn't admit that the ad blue system is part of the emissions and cover it as such.
 
#33 ·
There is a TSB for the T2 as well. I just had it done the other month. Pressure sensor replacement as well as software update. They are going to ask you before performing the update if you have had any remapping done for performance boost. If so I think it my not be covered. I don't know that for sure, but do know they ask everyone getting the TSB done.
 
#34 ·
My invoice does state that along with replacing the reductant pump module they also perform service action 23M1 to reprogram ECM software and replace a differential pressure sensor part # 059-906-051-A at no charge.
Guess I better check when my last oil change was and if this should have been taken care of then.
Any thoughts as to how this could have affected the reductant pump module?!