P229F, P20EE - how to replace NOx sensor 2 VW Sharan 2.0tdi (Seat, Skoda, Audi) 

Thanks, no I wouldn't put anything, otherwise with the heat there's a risk of it being seized.

Hi, I think Bank 1 Sensor 1 is the one that sits on the top of DPF. If I'm not mistaken..

To be honest - I don't know. Despite having 314K miles on a clock, I still have original EGR. I would believe they are "plug and play", but I'm not sure. Did you do it yourself?

Easy job, crazy part price 🙄

@@wawayltd do you need to reprog the car After replace the sensor

No

I don't remember, sorry. As I have a scanner I always do it by scanner.

I know very little about Mercedes. Bank 1 means - cylinder head, like V-shape engines have 2. If it's E220, I believe it is a 4-cylinder engine, so there's only one "Bank". Normally engines have 2 sensors - Sensor 1 would be somewhere after turbo, Sensor 2 I would try to find after catalytic converter - have a look along exhaust pipe.

Sensor 1 is easy - it just sits on a top of DPF and it's cheaperthan sensor 2. Not sure if these errors are related. I have a video about AdBlue heater.

I think Sensor 1 is the one sitting on DPF.

It's pretty much impossible to get torque wrench in there. Had to go with the feel. 😏

@@wawayltd Same thing in LV and pretty expensive with limited range. Probably worth it to buy a couple of these with different ranges if you service a dozen cars in a day: VW manuals are full of torque numbers for almost every manipulation including screws holding trims or navigation module.

@@peterdze No no, I meant it's difficult (impossible) to use torque wrench on that sensor due to limited space. I don't have problem getting them for myself, I have 3 - 1/2 3/8 and 1/4. All together ranges from 5Nm to over 200

@@wawayltd I see what you mean. Indeed, took a picture of the sensor and it looked cramped to reach with a torque wrench. Opted to go to a dealership for a peace of mind, but after watching your video it doesn't seems to be so complicated (as usual when watching someone more experienced doing the things 😉). I only bought electronic torque screwdriver to do simpler things like removing navigation module to clean laser lens and reassembling the whole thing afterwards, at least failing there would not stop the car 🙂.

I had 2 errors that are in the name of this video. I don't really track my consumption, sorry. My engine idles over 950rpm during DPF regeneration, otherwise it's around 780.

I have seen someone on Internet talking that they took simple oxygen sensor and resoldered to that electronic bit, but I don't know anything about it myself. I think non-original sensor should work, but I would look for the warranty. When I replaced mine, I just couldn't find anything apart from the costly original. The only alternative back then I had some listing on eBay from Germany, but I didn't want to risk and mess about, because I use the car for my taxi job and I wanted it to be sorted out as soon as possible.

The reason why ventilators kept working - most likely you stopped the car during DPF regeneration. And because it gets hot, if it stopped before process is finished it keeps ventilators going to cool vulnerable places down. It's normal. All vw with DPF do that. As for your error codes. I had the same - I solved it as I showed in the video. However, I can't guarantee anything - just shared my experience.

I bought it from TPS, but when I quoted local dealership they came up with the same price. Maybe your dealership quoted it with labour?

WheelsAndMotors got offert by about 1000 pounds, labour plus parts

@@slkcnkaidjksnoiaekald That's greedy. Are you in UK?

@@wawayltd No, Sweden. Dealer in my town. Bought one from UK at xenons4u.co.uk. it cost me about 300 Pounds. Hope to get it this week so I can fix the issue.

Anders Norén - Hi is your sensor working fine? I would like to buy from the same company but checking if it’s working?

Hello! No, no software adaptation i necessary for these sensors.

@@wawayltd Thanks

​@@ramon4905 Hi. you managed to fix the problem

​@@jesion0102Yes, thanks

@@ramon4905 Could you tell me the AdBlue countdown light disappeared immediately after installing the new sensor? For me it doesn't want to disappear and it keeps counting down. thanks

I'm not 100% sure, some manuals show more sensors for some cars than others. If you would be looking for Bank 1 Swnsor 1, it would be the one that sits on a top of DPF. Is that the one you have changed?

@@wawayltd I have just realised there are 2 sensors at the top before the Cat. 1st is O2 sensor and just below that is the nox sensor. So I'm guessing there must be 2 sensors after the Cat also.

Hello! I have no idea, sorry. Give it a go, see what happens.

You're welcome 👍

I went for genuine sensor because I use my Sharan as a taxi, I didn't want to risk, because I depend on my taxi work so much and can't lose days off work. If that would be just my private car, I would consider third party looking at their warranty and returns policy.

WheelsAndMotors thanks for the quick response. The company offers 1 month warranty and return. But not sure their after sale service. Is Vw (Heritage) give any warranty to the sensor if I fit by myself or other garage?

@@mohammadsiddiqui7042 They should do, but better to ask them. Different dealerships - different managements..

Regarding AdBlue - my car started consuming significantly more of that stuff after diesel scandal re-map. I can't say that I like it. I hate that this Adblue system is so temperamental. Anything it doesn't like - it starts mileage countdown! Ridiculous! It doesn't even affect cars performance or safety! What if I travel (as I do) between England and Latvia and this shit happens inbetween, and I have 600 miles left and we're not going anywhere?? Just because of stupid tank of urine (chemically AdBlue is very similar to urine)! As much as I love and adore my Sharan, same much I hate this AdBlue system. So if my car would stop consuming AdBlue, personally I wouldn't worry about it. Regarding DPF regeneration. DPF sits before AdBlue injector, so AdBlue shouldn't affect regeneration. Obviously, if DPF is working properly, it needs to regenerate time after time, otherwise it can clog up and cause all sorts of trouble. When it regenerates in my car, I only notice it by increased idle revs and stinky smell. When you drive you may not even notice it. If there's a problem with DPF - car would notify you. I have seen cars with cut out DPF when only inside is taken out, but on the outside it looks normal with all sensors to pass MOT. My car has all ecology components that you mentioned working, and I'll do my best to keep it that way. Regarding Nox sensor. Sensor 2 is ridiculously expensive, on Internet it can be found much cheaper... But in your case, I don't know what to advise - I don't know whether that is faulty sensor, or bad NOx readings because of not working AdBlue.. Don't know, if you can get sensor somewhere for cheap to replace it and see if it helps.. Sorry my friend - I gave you load of text with not too much help..

@@wawayltd well,thanks anyhow. I have ordered NOx sensor 249 euro, and I have also bought VCDS from Ross-tech. I will play a bit I guess. Like you said I love the car ,I hate the emission scandal(tried to sell the car,2000 views not a single call,all because E189) and f.....g adblue. The car will not deny start if the oil lamp is on,but will because adblue is on. If I find something out I will notify you.

I don't know, probably not. It doesn't mention the sendor. Normally, these errors come in combination with some other. Need to find real reason why it's bellow treshold.

With full AdBlue tank try to put ignition on for at least 30 seconds without starting the engine.. If that doesn't help - it's pain, try to find specialist with VCDS.

What is the vsds mate?

VCDS (an abbreviation for "VAG-COM Diagnostic System" and formerly known as VAG-COM) is a Microsoft Windows-based software package used for VAG (VW, Audi, Seat, Skoda) diagnostics.

Similar error "Low efficiency NOx trap" pops up occasionally in my current Skoda Octavia. I have no clue what could be wrong, and, because it doesn't happen often - I just delete it and carry on. Sorry, I can't help you with this one..

Yeah, cleaning is worth doing as it's so easy. NOx sensor price is ridiculous.

Hi Anders, no - I just changed it, cleared the errors and that's it. What problems do you get?

You're very welcome 👍 What's RJ?

WheelsAndMotors :). You sound exactly like him: royal jordanian, moto vlogger :) m.ru-vid.com

The easiest thing to do first - put ignition on for at least 30 seconds without starting the engine, that should let ecu to "understand" that the tank is full. If that doesn't help, then it's quite common issue that I hate a lot. And I don't have a straight answer what to do. Manual says that if AdBlue sign comes with an image of a spanner, there's an issue with AdBlue system and it needs to be fixed. Scan it to see what errors does it give you. Last time I had this problem, error pointed at this sensor, I replaced sensor, but countdown still was on. So I found someone with VCDS and he reset it for me.. Now I got VCDS myself, but I didn't have to use it for that purpose yet, because I never have AdBlue tank empty. As much as I'm in love with this car, that much I hate this AdBlue system! I've got a link how to reset it, but as I said, I didn't try it myself yet. Here's the link: malonetuning.com/how-reset-adblue-2011-vag-ecus

I have exactly same problem. Error: Adblue. No Engine start in 1000km. How your problem get solve finally?

Was NOX sensor wheels and motors guy is one to follow. Don't let VW fit it charged me a grand to repair and had my car a week.

@@ssstenning OK，thanks, understood.

do you think that I can use VCDS to reset the adblue counter rather than change the nox sensor first?

Hello. TPS or dealership. Also, I would make a research for local independent vw parts supliers. And please make sure that it's actually NOx Sensor 2 is faulty, so you don't waste your money.

Sorry Arif, I don't have experience with this.. Don't know.

@@wawayltd if the master doesn't know... not sure who will.. 😃. Thank you

@@2711arifm I'm not a master 😉.. I just know how to replace a sensor, and maybe few more bits. I'll try to find something online, but can't promise anything.

@@2711arifm Found something in French. If you have VCDS. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-NovCsu4ahFk.html

Sensor 1 is the one sitting on a top of DPF. Should cost abot £70.

What is the code for the error?

Turbocharged boost controls position sensor circuit Range/performance and warning light come. Already I had putting actuator new. But still have when u go uphill car going slow down aswell switch on my heater car after than same problem.

Error code. I think it could also affect my AdBlue reset/error. The AdBlue system in that car was complete nightmare.

Thank you. Mine is showing inconsistent reading error. Wondering if I should fo anything or not. May clean the error and see if it happens again

Yeah, see what can do, before you spend any money. That sensor is ridiculously expensive. My code reader was directly pointing on it. I'm not as clever as I pretend to be in my videos. Try forums or Facebook groups like this one: facebook.com/groups/1463201880401563/?ref=share

I'll do that. Just spent a fortune replacing a broken catalytic converter and some ridiculously expensive parts of the cooling system (oil cooling part), don't feel like spending soo much right now again.

I don't do repairs as business, sorry

Is that with the new sensor?

Yes I’m going to check scr injector next notice you’ve already done that

@@christhackrsy Are there any other fault codes?

WheelsAndMotors no exactly same so interested to see if yours does the same, nox sensor implausible signal and catalyst efficiency

@@christhackrsy My codes are gone... Not sure what happened there.

On the top of your DPF.

I'm sorry, I'm not 100% sure about Passat. You need to follow the exhaust. Sensor 1 normally sits on DPF, sensor 2 aftet. Yeah, on 4 cylinder engines there is only one bank.