Ah ha, now ... there are actually two Jaguar forums on the 'interweb' which are easily confused because the difference is only the letter 's'.

This forum is jaguarforums.com and is more frequented by North American owners than owners elsewhere. The 2.7 diesel was never marketed in North America.

The other forum, which is more UK and EU owners with Aus and NZ as well, all where the 2.7 diesel was marketed, is jaguarforum.com and IMHO you would do better to post there.

(There are of course some of us who post in both )

The link for the X350 subforum in jagforum.com is here.

 

 

Good luck.

BTW it's a belt not chain and the problem may be one of the other things that afflict that engine such as diesel in the engine oil..

 

The DPF ( diesel particulate filter ) the way these things work is just incomprehensible.
I don't know about the US, but In Europe they MUST be fitted to diesels by law, They have to "regenerate" regularly ot they clog up and need to be replaced, normally, this regeneration is performed by the car at motorway speeds, of around 60- 70 MPH and takes around 10 minutes at these speeds, however, if the DPF becomes blocked through not getting a 10 minute fast run every 300 miles, it needs a longer run of at least 30 minutesat motorway speeds, or around 30 miles, where the speed must be maintains for the entire 30 minute run. Unfotunately, most diesel car owners rarely use motorways on a regular basis, and those that do will know that even achieving 60mph can often be an impossibility, and of course, most little old ladies and school run mum's who own diesels may never even have seen a motorway, let alone driven on one, so their DPF's do not get the chance to regenerate, and they clog up very quickly and need to be replaced, although nowadays, there are firms who can remove and clean them, but even that costs hundreds.
SO, What exactly IS regeneration of a DPF, well, this is when the DPF burns off all the nasty dirty diesel dirt that the Cat hasn't already turned into nice clean dirt, and turns it into ash that stays in the DPF, so even with regular regeneration, the DPF will eventually fill up with ash and become clogged, The DPF performs this regeneration by turning itself into an incinerator mounted to the bottom of your car, and by using diesel from your diesel tank. The DPF can reach temperatures in excess of 600 degrees Centigrade, this is why it does it at motorway speeds to allow fast flowing cool air to keep it from setting your car on fire, HOWEVER, if you were to stop the car and park it on, say, grass, like the stuff you find at the side of motorways and roads, mid regeneration, it would most likely set fire to the grass, it may even just melt the tarmac under your car, but, as if that wasn't bad enough, now we really get into WTF? territory. Any excess diesel that is not used, is not returned to the diesel tank, but it is sent to the sump of the engine, this happens at every regeneration, but when a regeneration is interrupted, even more diesel is sent to the sump, this results in the sump filling up with diesel, which although diesel is an oil, is not a lubricating oil, like the every expensive oil your garage would put in at a service, so by the time your next service is due, that expensive oil, is not just a wee bit black and in need of replacing, but still lubricatingly slippery, it is around doubled in volume and is as weak as water. and if you decide to leave a service, as you have maybe not really done many miles since the last one, then even more diesel is deposited into the sump and you can end up with a sump that is overfilled to the point where it will cause severe damage to your engine. And just for that extra kick in the nuts, The Jag V6 diesel engine, has two DPF's, one for each bank part number C2C37171 , list price, around £3000, after market price, around £1500......EACH!

 

No it doesn't - it has one DPF. The pipes common up at the inlet.

What it does have is two catalytic convertors, one per bank (as do all the gasoline/petrol engines ?)

 

I seem to remember being under an S-type Diesel and I was sure there were 2, but looking at them online, it was just the sheer size of the beast, that thing must account for half the overall weight of the car. However I am sure that the 2.7L twin turbo unit fitted to the Jaguar is actually a Peugeot Citroen unit, apparently developed "in partnership with Ford", But as we all know, usually this means they just threw some money at Peugeot to stick a Ford/Jaguar badge on the cam cover and chucked it in a huge number of ford related projects. I have never been a fan of Diesels, especially in Jaguars, I'm sure Sir William Lyons would be spinning "at around "7000 rpm's" in his grave if he could see his beloved Jaguar mark soiled with oil burner power plants. I will probably get lashed for this but in my opinion, the S-type, X-Type, XF and XE are not true Jaguars and to stick a Diesel engine in there too just adds insult to injury, even worse is when I see a Jaguar "R Sport" badge sitting on the boot lid next to a "2.7D" badge. Maybe I'm just old and set in my ways, but to me Sport = Petrol, Diesel = Farm Machinery.

 

Kindly explain why you're of the opinion these vehicles are not 'true' Jaguars.

 

Well Jaguar was set up as maker of high end sports and saloon ( sedans ) cars, all with highly refined and powerful petrol engines, some of the most beautiful cars ever made have been Jaguars. Right up til about 1999, when they "reintroduced" S-Type, Not a particularly ugly car, but a clear attempt at cashing in on retro styling, Of all the ones I mention, probably the nearest to a true Jaguar, However it was also the first Jaguar to come with the option of a Diesel engine, in the 2.7L twin turbo Peugeot unit, that alone in my book makes it, not a true Jaguar. Although I would not pass up an S-type R.

The X-type on the other hand, Launched in 2001, was an attempt at getting into the BMW 3 series market, and if you were to peel back a few labels and badges on one you would find nothing but Ford badges and part numbers, Making it no more than a Ford Mondeo in a pretty dress, The V6 petrol is the same Ford unit that has been in production since 1994, with the Diesel unit being from a whole host of Ford and Mazda models, including the Transit van.

The XF on Launch in 2007 was a nice looking car, and had potential, but as it was a direct replacement for the X-Type, that makes it, not a true Jaguar, well apart from the blistering 4.2SC and the even more appealing 5.0 SC, but then just when it was getting interesting they introduced the "sportbrake", an estate ( station wagon ).

The XE, well, that's like a BMW 1 series, it just should not exist in the real world.

Remember these are MY opinions , your opinions may differ somewhat......

 

I wouldn't argue about the diesel S-Type but equally they didn't sell many of them. The petrol S-Types are very much Jaguar cars.

You're wrong on the XF as it was to replace the S-Type not X-Type and indeed shares many parts with the S-Type (hardly surprising as they're both built on the DEW98 platform - unlike the X-Type which isn't).

The X-Type does share quite a lot with the Mondeo, but it also has a lot of non-Mondeo engineering. You could argue (somewhat pointlessly) whether it's a true Jaguar, whatever that is (another pointless argument). There again, Ford did a pretty good job with the Mondeo...

 

In my opinion, whatever that's worth, if a vehicle is engineered by Jaguar, built at Castle Bromwich in the Jaguar works and sold through Jaguar main dealers, it's a Jaguar.

Like it or not, let's also remember that if it wasn't for Ford's stewardship, Jaguar would be only a distant memory.