[Mohawk]

Mine is in for service today V6D First Edition & they messaged me to say coolant below minimum, suspected Aux Rad leak ☹ They can't do full diags until next Tuesday & it will be covered under the warranty. Hopefully be done by Friday next week.

 

[Mohawk]

I checked that recall advisory yesterday & my VIN is not covered in the affected range! Plus I checked my car when I bought it & all UK recalls had been completed.

Strangely my 1st Edition VIN starts 05xxxx, so I can only assume those are USA VIN range or LHD VINs.

 

[Mohawk]

That recall was USA, but I can't imagine that the design is different for different countries. Possibly just the same old useless UK regulator doing what they do best which is Sweet FA as usual.

 

[Mohawk]

So car has been thoroughly checked & pressure tested & no leaks found. The suspect aux rad, was just that a suspect due to a below minimum level in the header tank which is not something I visually check very often. Car had not thrown a low coolant warning. So it's been topped up & I'll keep an eye on it, over the next few weeks to see if it goes down again.

 

[Mohawk]

Now need to have a word with the Indy, as to WHY they said coolant LEAK when in reality it was just a little low on the coolant. Then they want to charge me £120 for diagnosing a fault they identified with zero evidence!? Same with the Aircon regas, their work sheet options listed it at £135+VAT, but they appear to have charged £140+VAT + £45 labour !? Anywhere else the charge is for the job! So once again not a happy bunny ☹ Will be disputing the cost & labour charge applied.

 

[Mohawk]

Well to their credit after pointing out the issues with aircon pricing they reduced that to the fixed rate advertised & knocked a little off. Said it was a system error, so fair enough. On the diagnostic charge which I asked that they absorb some of it due to their poor original diagnosis, they agreed to absorb 100% which is much better than the 50% I was expecting. So all in reduced bill from £653 to £434. I just wonder how many people just open their wallets & pay the bill!?
And as a bonus the oil level was full for the first time. I've had to add a litre after each of the last 2 services to bring it up to full on dash oil level check.

I'll keep the Indy's name out of it because they have met me more than half way on this. So all good now.

So I just have to sort the rusty front brake discs & add some new pads before MoT in July. As an ex mechanic I can't stand the charges that most places want for an easy job, when I can do it myself with proper cleaning & care.

 

[Mohawk]

Well the 3.0D at least the way I drive it has only ever had one active regen & that was after the TDI Tuning box kept causing Turbo Overboost error codes, which stops passive regen. Took it off & never seen one since, I do miss the extra umph it gave ☹

 

[Mohawk]

With ref to the air con regas I done my own with the cool5 kit off Amazon at £40, job done and super cool.

Maybe next time its due & no warranty to worry about.

 

[Mohawk]

"Well the 3.0D at least the way I drive it has only ever had one active regen"
I'm not sure that's possible. Passive regeneration is extremely rare in these vehicles and active regeneration is triggered around 18 to 20hpa. Maybe you mean forced regeneration?

If I read the manual & other info correctly the DPF system self cleans are higher continuous speeds & rarely needs an active fuel add regen cycle. You are correct that my terminology may have been off, yes forced regen.

Comprehensive description of DPF function here.

https://www.jaguarforum.com/threads/dpf-and-regeneration.63332/

 

[Mohawk]

I have a full AC gauge and vacuum pump kit, I use the disposable gas refrigerant bottles. By the 3rd time you use the kit you're in profit. But then I do have a workshop.


Warranty won't cover for low gas though, only for a failed component, as it's a system that needs servicing with expected slow leakage being stated as normal.

Agreed, but apart from accidental damage, most aircon compressor (the expensive bit) failures are caused by low gas. I've seen a cracked compressor from gradual loss & a total failure of one of mine when a Red Leg Partridge committed suicide through my front valance & aircon rad, causing instant total loss of gas on a hot system. The protection systems failed & left the compressor clutch engaged, which then self destructed.

 

[Mohawk]

SDV6 is NOT transverse & that XF explanation is for the same V6 engine. Pretty certain no manufacturer would reengineer a working solution.

The 2.0D is its own can of worms & even Jaguar engineers have said it needed a DPF fuel injector, but the bean counters refused it & that is why it suffers so badly from fuel dilution as they have to do massive post combustion injection.

Ultimately all DPF systems will fail, but mostly after they are long out of warranty.

 

[Mohawk]

The point was that some regen is natural if your driving habits are good (well in DPF equipped vehicles) and Active regen at motorway speeds is not detrimental. Its the slowbies & town only drivers that kill the engine with fuel dilution at low revs & speeds which equals reduced gas flow, so more fuel is needed to make the heat.

Normal EGT should be 4-500C, so if you are working your engine at high constant loads as in Motorway speeds, it does not need much extra fuel to heat the DPF. If you are just making the minimum speed to start the process (40mph IIRC) then it will take more fuel & if the process is interrupted, junctions, traffic lights etc. It will start again, spending more time in over fuelled conditions leading to oil dilution issues.
Either way the whole adblue/DPF thing is a really bad idea, but its what we got to live with for free travel into certain cities.

Somehow the idiots in charge have decided that the best way to save the current (restore to past) environment is to spend more making more useless expensive parts/systems, which cost more in environmental terms during manufacture than they save in use 🤷‍♀️