[Nuttyspark]

Unfortunately it will. And once it does you will need to take it to a main dealer to be reset!

 

[Terry loves his XE]

Remain calm people.

I'll keep this brief (as I can) feel free to ask any questions.

First of all, your Jaguar or Land Rover hasn't got a DEF quality detector. What this message really means is, there is a problem somewhere between your DEF tank, exhaust and ad blue injector.

1. Potential problem No 1.
Have you recently just filled your AdBlue tank?
Your tank has a capacity (XE capacity is 9 litres) if you over fill your tank you could potentially get this error message.
FIX. Remove your rear left wheel and wheel lining to gain access to the bottom of your AdBlue tank. Find the drain hose and drain some out. After this you will need an OBD II meter to reset the message. This won't fix the problem but should change the message to "Diese Exhaust Fluid Dosing Malfunction". After this take the car for a short country road drive, get the engine nice and warm and plug in your OBD II meter again and clear any messages. A short drive later and a few cycles through engine on/off and ignition on/off and you problem should be solved. &#x1f44d-1f3fb;.

2. Potential problem No 2
Your AdBlue might just be old, if its been in the tank for a while it may have just gone bad. If this is the case I won't burn away those nasties in your exhaust, which would cause the NOx sensor in your exhaust to detect high carbon emissions and display this message.
FIX. Remove your rear left wheel and wheel lining to gain access to the bottom of your AdBlue tank. Find the drain hose and drain the AdBlue out. Pour a litre of new AdBlue in to the take and drain that out too, just to give it a nice wash. After this you will need an OBD II meter to reset the message. This won't fix the problem but should change the message to "Diese Exhaust Fluid Dosing Malfunction". After this take the car for a short country road drive, get the engine nice and warm and plug in your OBD II meter again and clean any messages. A short drive later and a few cycles through engine on/off and ignition on/off and you problem should be solved. &#x1f44d-1f3fb;.

3. Possible problem No 3.
Your AdBlue gets injected into your exhaust via the AdBlue injector 😱. Have you ever noticed all the white crystallisation around your DEF cap? You could have the same white crap all over your AdBlue injector nozzle. To find out you'll need a jack and an 8mm socket.
Fix. Jack up your car at the front right wheel as high as you dare. Make sure to get an axle stand under there too, safety first. You'll find your AdBlue injector clamped to the exhaust with just one jubilee style clip. Remove the clip, the AdBlue line and the electrical clip and your injector will come away without a fight. Wash the nozzle (if required) with warm water. I've found that a Lucozade sport bottle works well for this. After this you will need an OBD II meter to reset the message. This won't fix the problem but should change the message to "Diese Exhaust Fluid Dosing Malfunction". After this take the car for a short country road drive, get the engine nice and warm and plug in your OBD II meter again and clean any messages. A short drive later and a few cycles through engine on/off and ignition on/off and you problem should be solved. &#x1f44d-1f3fb;.

4. Possible problem No 4.
NOx sensors. NOx sensors (Or lambada sensors) don't last forever unfortunately, they're about £100 or so and from research last around 7 years or 65,000 miles. Which isn't a lot!!! From research I've seen pictures of their electrical wires plastic sheathing eroded away from vibrating on your under tray. If this has happened and the wires are exposed, unfortunately you need a new one.
FIX. Buy yourself a replacement and swap them like for like. After this you will need an OBD II meter to reset the message. This won't fix the problem but should change the message to "Diese Exhaust Fluid Dosing Malfunction". After this take the car for a short country road drive, get the engine nice and warm and plug in your OBD II meter again and clean any messages. A short drive later and a few cycles through engine on/off and ignition on/off and you problem should be solved. &#x1f44d-1f3fb;.

5. Possible problem No 5.
EGR valve. If you have all the tell tail signs of an EGR valve fault (ruff running idle, white smoke out the back, so on.) don't worry you don't need a new one, not just yet. It might just be backed up with carbon.
FIX. You could pay a professional to do a deep carbon clean on your drive, and this would do your car the power of good. Or, if you're brave enough you could remove you EGR valve and give it a good de carbon clean with an aerosol spray. Or you could just spray the same aerosol spray direct in to the air intake of your engine, this will eventually get to your EGR valve and clean it out. After this you will need an OBD II meter to reset the message. This won't fix the problem but should change the message to "Diese Exhaust Fluid Dosing Malfunction". After this take the car for a short country road drive, get the engine nice and warm and plug in your OBD II meter again and clean any messages. A short drive later and a few cycles through engine on/off and ignition on/off and you problem should be solved. &#x1f44d-1f3fb;.

In all of these cases, you've probably noticed that you'll need an OBD II meter. In some cases you might even find that the problem on your car is non existent or no longer existent. But one the ECU gets a sniff of the issue, EU law says that these new Euro6 super eco engines have to remain eco friendly, FOREVER!!!! So the problem HAS to be fixed, weather it's a simple fix or not. Either way, the FIX is with a cheap OBD II meter to clear the baddy message, then take the car for a "drive cycle" this should do it. &#x1f44d-1f3fb;

If you've got any questions on any of these processes, drop me a message. I'll do my upmost to help. Potentially saving you £££££ 😘 Mike.

Great and detailed info, thanks

 

[nicpy]

Rather than start a new thread i thought I would tack it on to this one, it is of course about the AdBlue warning messages that so many have experienced over the years. It has now happened to me three times in just under two years, each of the first two times the common factor was an extended journey in torrential rain. However rear N/S wheel arch liner off and nothing obvious where water might be a problem.

Third time just this last weekend and warning messages came up on a dry day...wrong fluid/ no restarts/ dosing malfunction, cleared non existent fault codes and within five miles all clear again.

Ok I thought lets have a flush through and empty of the AdBlue tank, it`s a 180 so the larger tank is fitted, as it empties into a container I notice that the flow slows considerably right down to a trickle, but by releasing the filler cap there is a little rush of air into the tank and the flow resumes at a heady pace. Try it again by screwing the filler tight and the flow again reduces, releasing and that same gulp of of air to release the vacuum and full flow is resumed.
So I am wondering if this is the fault cause, it goes a little way towards explaining why those who fill up the tank may be prevalent in experiencing problems, air can be compressed, a liquid can`t.
The filler cap does not appear to have any venting holes as would say a fuel tank, I tried by blowing through it and got a black lipstick circle mark for my trouble, doesn`t taste too nice either...so should the system have a method of venting somewhere else?

Those of us who have spilt AdBlue will be aware of how quickly it crystallises if spilt so it needs to have the minimum exposure to the air.

Any thoughts?

 

[Terry loves his XE]

Good comments, my fault came up after driving 20 miles at 40mph due to roadworks and traffic, I was also in ECO mode. Also I treated my new baby to some of Shells finest premium.

Bought OBD as advised in previous thread all good. Would be good to see if there is an issue with breathing.

 

[Rod9669]

I've noticed that the fuel tank (diesel, 180) breathes when filling. Once it clicks that it's full, if i click it a few times, and wait about 10 seconds, I can hear the tank gurgle and can then get about another 5l in there. Same for everyone?

 

[Indianajons]

Found this which is interesting, particularly the recommended drive cycle to clear the dosing error message... https://static.nhtsa.gov/odi/tsbs/2017/MC-10116216-9999.pdf

 

[nicpy]

Rather than start a new thread i thought I would tack it on to this one, it is of course about the AdBlue warning messages that so many have experienced over the years. It has now happened to me three times in just under two years, each of the first two times the common factor was an extended journey in torrential rain. However rear N/S wheel arch liner off and nothing obvious where water might be a problem.

Third time just this last weekend and warning messages came up on a dry day...wrong fluid/ no restarts/ dosing malfunction, cleared non existent fault codes and within five miles all clear again.

Ok I thought lets have a flush through and empty of the AdBlue tank, it`s a 180 so the larger tank is fitted, as it empties into a container I notice that the flow slows considerably right down to a trickle, but by releasing the filler cap there is a little rush of air into the tank and the flow resumes at a heady pace. Try it again by screwing the filler tight and the flow again reduces, releasing and that same gulp of of air to release the vacuum and full flow is resumed.
So I am wondering if this is the fault cause, it goes a little way towards explaining why those who fill up the tank may be prevalent in experiencing problems, air can be compressed, a liquid can`t.
The filler cap does not appear to have any venting holes as would say a fuel tank, I tried by blowing through it and got a black lipstick circle mark for my trouble, doesn`t taste too nice either...so should the system have a method of venting somewhere else?

Those of us who have spilt AdBlue will be aware of how quickly it crystallises if spilt so it needs to have the minimum exposure to the air.

Any thoughts?

Further research on this shows that certain Citroen models had a recall to replace the AdBlue cap with a vented version, several disgruntled owners describe their experiences here..... Adblue UREA issues. not dissimilar to us!

 

[BOBCDP]

I've noticed that the fuel tank (diesel, 180) breathes when filling. Once it clicks that it's full, if i click it a few times, and wait about 10 seconds, I can hear the tank gurgle and can then get about another 5l in there. Same for everyone?

Yep my diesel used to do exactly the same. The petrol however just fills and once it clicks, it’s full.

 

[Fighterpilot]

Interesting about the Adblue cap. The centre of mine has a 1/4 drive socket indent also the secure strap is missing. Possibly nothing to do with it but the fact I keep it topped up may avert that pressure difference mentioned by not allowing more that 1 ltr of usage between top ups.

 

[bik3rz]

The centre of mine has a 1/4 drive socket indent also the secure strap is missing.

mine is the same, what secure strap? havent seen any strap on any cap i've seen on xe's or xf's

 

[Nuttyspark]

They all had a securing strap from the factory.
A ring around the filler neck and a strap to the cap so it didn't go astray and you could rest the cap in it's cup on the filler door.
Sounds like a few have been lost as there was a recent thread on getting replacements.
Page 2 onwards:
MY22 fuel cap

I think they are referring to the Ad-blue filler cap!

 

[PhilB]

I think they are referring to the Ad-blue filler cap!

Ah I see.
I think Fighterpilot said his strap was missing.
Mind you the way things go off topic on here it could have been stiletto heels again.
I'll bin my post.
😁

 

[Fighterpilot]

It has a small side hole as if a strap was originally fitted there. That may have been a factory thing so it didn't get separated and disconnected once filled. Doesn't matter anyway. I mentioned it just in case anyone had one still fitted or if there was a different design.

 

[nicpy]

I have borrowed a tiny drill from a friend, no more than the diameter of a pin, drilled through right in the centre of where the 3/8 socket drive would go in the AdBlue filler cap, on the inside there is a round but flat rubber seal which even after drilling through would just close up again, so a hot needle used to make sure that hole stays open, finished off with a small square cube of foam into the square drive hole to keep any dust out.

As they say, watch this space!

 

[Indianajons]

I have borrowed a tiny drill from a friend, no more than the diameter of a pin, drilled through right in the centre of where the 3/8 socket drive would go in the AdBlue filler cap, on the inside there is a round but flat rubber seal which even after drilling through would just close up again, so a hot needle used to make sure that hole stays open, finished off with a small square cube of foam into the square drive hole to keep any dust out.

As they say, watch this space!

Have you been using Halfords Adblue by any chance?

 

[nicpy]

Have you been using Halfords Adblue by any chance?

No I haven`t, the AdBlue I`m using is off a garage forecourt and meets JLR specs.

 

[Indianajons]

No I haven`t, the AdBlue I`m using is off a garage forecourt and meets JLR specs.

So does Halfords (and any other Adblue you can buy) but read on another forum some speculation that Halfords can cause a problem so just thought I'd test the theory

 

[Fighterpilot]

Neither 10 ltr Halfords branded bottles I have used have caused any problems. Maybe that is a unfounded thought put about as many garages sell it at £22 for 10 ltrs these days and Halfords is cheaper. Expensive, for what it is.

 

[Indianajons]

I shouldn't have tempted fate... on a long drive back to the Peak District from Clacton via Ipswich on the A14, I got the "incorrect DEF quality detected" message followed about 30 mins later by the "no engine restarts in 515 miles" message. This despite following all the normal precautions and with no problem for the previous 45K miles.

I don't have an OBD reader to delete the codes so there was no point crawling under the car to check for crystallisation on the DEF injector etc. I took the car to AWJ instead and two hours later the problem was resolved (for now anyway) at a very reasonable cost of £78. Their report reads "read and printed logged fault codes - P2BA9-00, P2BA9-92, P2BAE-00, P2BAE-02, P0480-71, P20EE-04 and P229F-28. Various NOx codes stored. Reset Adblue quality monitor and warning light went straight off. Advise customer to monitor and report back if warning light returns".

The only difference to the previous 45K miles was a tank of diesel from a dodgy looking pump at a Peak Oil depot, which caused the engine to splutter on start up before the journey home, and the use of Halfords Adblue instead of the usual Redex. On investigation I found this concerning Halfords Adblue... Halfords ADBLUE Can't be sure if there's anything in it of course but will be dumping my remaining 3 litre pouch of Halfords and reverting to Redex just in case.

 

[bigk588]

Hi guys,
Just wanted to say that I had the "Diesel Exhaust Fluid Dosing Malfunction" message a couple of weeks ago, accompanied by the abler check engine light and DTC U029E. The check engine light came on a few hundred miles (500-800miles) and about 24h before the DEF message (I was driving through Europe). After wasting a quite few hours to several garages (on different occasions) who would only put the diagnostics tool on the car and try to delete the error, I decided to have a look myself. Of course, the technicians could not figure out the fault or remove the "No Engine Restarts" message, so I paid them for nothing (they could delete the U029E code but it came back after exactly 3 engine restarts).
I got under the car and found the wiring harness of the NOx sensor (C2D55027) disconnected (unplugged). I clipped that back in and deleted the U029E error with a cheap ELM327 OBD scanner (Car Scanner app), drove over 1,500 miles since and everything is fine. I hope this helps.

How to get the countdown message to go away? I can't seem to find the control for this. I tried autell,and a Bluetooth app mx8.