The DEF has probably crystallised on the thread and locked it on. There isn't a busting amount of room there to get any purchase on it with your bare hands. You could try a long nosed pair of mole grips or pliers, but pad the plastic cap well with a cloth or microfibre towel first, otherwise you could cause additional damage. Failing that, take it in and ask them to loosen it whilst you wait.

 

pour warm water on it, may melt any crystals, but will also slightly expand the cap

 

There is a square hole in the top of the cap, approx 7mm sided, I have made a key that fits into this from steel bar, A simple fix and easily turned.

 

There is a square hole in the top of the cap, approx 7mm sided, I have made a key that fits into this from steel bar, A simple fix and easily turned.

Brilliant idea - you should patent and mass produce it! 👍

 

There is a square hole in the top of the cap, approx 7mm sided, I have made a key that fits into this from steel bar, A simple fix and easily turned.

I gave this a go - unbelievably the top part of the DEF cap just snapped off from the rest of the cap (so it's now just a smooth cap with no grip at all).

I have ordered a new cap (£7.97) from Land Rover. Apparently it is quite common for them to seize up if any DEF is on the thread... clearly a great design!

 

The fact that you cannot get a grip on it unless you have hands the size of a baby's would indicate that the DEF design was drawn on CAD by midgets.

Still, it could be worse....if it was a Range Rover, you would be filling the nearside front wing up, and risk it splashing all down the paintwork! Another great design idea from you-know-who....

 

The way I see it its actually well designed to for the job, gap threaded to give accumulated gunk chance to break out of the threads . and the top seal is spring loaded
As I said perhaps a pouring of hot water might have been wiser than brute force.

 

The way I see it its actually well designed to for the job, gap threaded to give accumulated gunk chance to break out of the threads . and the top seal is spring loaded
As I said perhaps a pouring of hot water might have been wiser than brute force.

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Yes, I'd given the hot water a go too. I suspect when the car was serviced it was probably cross threaded in some way as I've never found it overly difficult to remove before.

 

Is that before or after you've skinned or burnt your knuckles on an inconsiderately placed heat shield from the turbocharger? :?:

 

The exhaust is plenty distance away, there is bags of room in that area. you can see that in my pic, the black hole

 

I'm talking about the turbocharger to the right of it at 2 O'clock in your picture, not the exhaust.

 

still plenty far away, imho . Car was fairly warm when I topped up adblu today, weather was cold yet I didnt even sense heat danger from the turbo proximity

 

Perhaps you're left-handed?

 

sinister

 

On DS2 it's moved to under the fuel filler cap, which is now oval. Apparently his Cravatness wanted the perfectness of a round filler cap on the DS1 and as there was space between engine and bulkhead (because the SCRF won't fit in there there), that's where it went. Or so I heard.

 

On DS2 it's moved to under the fuel filler cap, which is now oval. Apparently his Cravatness wanted the perfectness of a round filler cap on the DS1 and as there was space between engine and bulkhead (because the SCRF won't fit in there there), that's where it went. Or so I heard.

On my Audi it has the DEF filler right next to the diesel filler in the flap on the side of the car, is that what you mean for the DS2? Lot more pragmatic arrangement as it allows you to safely fill up from garages that have DEF pumps cheaply for example too. Always baffled me why they put the filler for a consumable in the engine bay (although that logic applies to washer fluid too of course).

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On my Audi it has the DEF filler right next to the diesel filler in the flap on the side of the car, is that what you mean for the DS2?

Yep, you can see it on some of the photos of the camouflaged DS2 prototypes too.

 

New Evoque has the DEF filler next to the fuel filler:

 

matterless where it is really, under bonnet = more spill friendly . on side = convenient for pump stations.

ab-blu isnt a nasty substance, wash it off promptly and it wont affect paint,

 

In my opinion, having two different fillers right next to each other means inevitaby that ;- "SOMEDAY SOMEONE," will put the right stuff in the wrong hole.
You fill with fuel once every 350 miles approx, but D.E.F. may be 5,000 miles or 4 months, far better to be left where it is now.
I would n"t have imagined anyone breaking the D.E.F. filler cap by just removing it, but they have!

 

At the rate AdBlue consumption is going up with every MY of DS, I think you'll soon be filling up with AdBlue every time you fill it up with diesel!

 

At the rate AdBlue consumption is going up with every MY of DS, I think you'll soon be filling up with AdBlue every time you fill it up with diesel!

That would actually be a good idea. Then you could have two progned diesel pumps that had an adblue nozzle that would only fit adblue and not petrol/diesel filler necks, and only activate the pump if it was correctly engaged... mis-fueling gone :lol:

And you can only get diesel if you care about not killing children and have an adblue EU65 capable car fitted with said mechanism. :shock:

 

or of course , put some more effort and science in, to make the use of D.E.F. unneeded, and more particularly all vehicles even more fuel efficient.
Remember when we were all being encouraged to buy small economical cars by low road fund rates etc. That has been stopped as the drop in revenue from less fuel sales was not in any governments plans, (or company profits) and with the past rise in diesel vehicle sales that had to be reversed somehow as well. Hence the current demonising of diesel which is in reality an attempt to switch us all back to petrol, which of course means we buy more fuel per mileage and therefore pay more in duties than we do at present.
Its not about saving the planet or indeed the children, Its about revenue , profit, and politics.!

And as for electric cars, where does everyone think the electricity comes from I wonder! Is it MAGIC.

 

Elastictrickery can be produced by a drilling method called fracking but we arnt allowed to do that,

wind power is good when windy, same thing for solar

Either way a good proportion of the power is lost simply transmitting the trickery from power station to car charger, even more is lost in battery efficiency levels.

So for the time being fossil fuels are the key. better energy efficiencies could be produced by wondering why so many people need to travel cross country so often and rescheduling things where possible.

 

And of course fracking up the planet does not actually "produce" electricity, just another form of fossil fuel which again needs to be transported to the refinery , using yet more fuel and clogging up local roads and ruining peoples lives. Unless we are planning to tear up even more of the planet with pipe lines. The ridiculous Fracking Idea should be buried once and for all.

Sorry for now being well "off Topic" ie DEF Cap.