I have a 2016 XJ euro6 3.0D. Had the vehicle serviced at my main jag dealer in May 2019 have done 4K since then and my oil service indicator has illuminated, took it back to the dealer three weeks ago and they reset the service indicator, on leaving the dealer it registered 12000 miles. I have just started the vehicle and the “oil service” message has come on again so I went into the service menu and it shows remaining miles to service as zero.
Question is has anybody experienced this issue with a 2016 or newer 3.0D XJ?
I have heard of oil contamination issues with newer XJ’s anybody know anything about this?
desperate to find out further information, would appreciate your help.

 

Sorry to hear off . the issue you describe is a can of worms , And i am sure others will tell you off this oil dilation which is blighting the euro 6 cars with the adblue . A whole load of not just Jaguar models but also the Landrover side . I seen a bulletin that JLR had posted regarding models that were effected , Hope some one can post it . In short the advised service intervals of 16000 miles is way to high and due to Diesel getting past the piston rings and then mixing with oil in the sump means more frequent oil changes say around the 5000 mark to stay safe and not destroy the engine . Now under warranty JLR have been doing oil changes more regular when owners report cases like your self . But once warrant is out the owners will be left to deal with this issue on their own as JlR have no fix for this

 

https://stormcatcher.co.uk/resources...-oil-dilution/ Hope your sitting down

 

I'm not clear what that issue has to do with the OP's oil service light coming on after 3 weeks. Has he done 4,000 miles in 3 weeks? Or can something else turn on the light?

 

It is to do with the service countdown or adblue count down , I have read of it others will tell better but it aint good put it that way , JLR are trying to wiggle out of this issue blaming "uncompatable journeys"

 

https://www.jaginfo.org/archive/index.php/t-108854.html this guys car was also blighted with this and left to sell his car

 

So if I understand your logic correctly, it is this :

The DPF problem means you need to change the oil more often, therefore if your oil service light comes on early, you have a DPF problem.

I for one think this logic has some issues. So far no-one has explained to me how, and if, a DPF problem can turn on the oil service light. Perhaps high oil level could do it?

I think the most likely problem is that the dealer didn't reset it right.

 

To be rather frank. a bullshit reply from JLR their problem as owners have bought in good faith take them to small claims court as not fit for purpose . you will win

 

Mark. this is a big problem that Jlr are trying unsuccessfully to cover up . they seem to have no answer to this problem not that i am aware of any way . it effects a few of the jaguar side models all diesel cars the JX being one also on the land rover side a few models . OZxfr a member on here will tell you better of it

 

When you read through that link i posted Jaguar CRC are a nasty piece of work trying to side step this issue shame on them

 

Mark, have a read through the thread in the Pommy forum linked by George.
For example, this post:
wilf
13th July 2019, 07:40
Actually Mattia is right, there has always been some oil dilution due to blowby, but nowhere near the levels being seen now, on such small mileages.

BTW Mattia - there is no sensor, the ECU calculates a dilution figure by extrapolating from the number of (incomplete) dpf regens. Then adjusts the mileage to service accordingly.

The Diesel Particulate Filter (DPF) regeneration process (regen) burns off most of the soot (particulates) in the DPF, turning it into ash and C02. This soot builds up fairly quickly as it should, that is the point of the DPF, so it needs to be burnt off regularly otherwise the DPF becomes clogged. Eventually the DPF will fill up with ash anyway by around 80,000 miles, then it either needs to be replaced (big $) or professionally cleaned (slightly less $).
The burning off of the soot is done by getting the DPF extremely hot, around 500 degrees C, and this is achieved by injecting excess fuel on the exhaust stroke which then ignites inside the DPF, burning the soot.
Some of this excess fuel leaks past the piston rings into the crankcase and into the oil.
If the regen process is working properly and completely the oil dilution with fuel is not too bad, but if the regen process doesn't work properly or complete fully the ECU tells the car to keep on trying to regen so excess fuel gets in the oil. The main cause of failed or incomplete regens is not getting the DPF hot enough, as happens if the car only ever does short trips. Sometimes it gets so bad with so much fuel in the oil the fuel in the oil ignites and the engine runs on after being shut down and destroys itself very quickly.
I don't know exactly why this problem is worse with Euro 6 and Adblue, I can only guess that it's harder than ever to get a full regen to complete.
I had a diesel XF a few years ago, a 2010 XFS, and I had a few problems right from the get go with a clogged DPF.
Long story short I solved the problems by using some additives in the fuel, but I will never go back to a diesel.

 

echo

 

I didn't read your linked stormcatcher page until now, my post was 100% off the top of my head and from memory.
I didn't do a bad job if I say so myself!
We have to allow for our Murican friends not being familiar with diesel Jags and their associated problems (as diesel Jags have never be sold in North America) so some explanation is required.
But now many car makers are putting particulate filters on petrol engined cars, completely pointless IMHO but has to be done to satisfy the ever more idiotically low "pollution" dictats put out by various bureaucrats, so buyers of new petrol engined cars can look forward to the same sorts of hassles and problems.

 

apologies for creating a side conversation within your thread, what is the recommended Oil for the 3.0 V6? (US petrol)

 

Buy this, or the stuff from the dealer at 4x the price :

https://smile.amazon.com/gp/product/...?ie=UTF8&psc=1