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Diesel Misfuel Prevention

14K views 31 replies 18 participants last post by  Kamy  
#1 ·
The new 2010 model XF comes with a misfuel prevention device. Has anyone with a 2.7D car fitted one of these replacement filler caps to prevent misfuelling of their car?

Fuel Angel - http://www.misfuellingprevention.co.uk/index.asp
Caparo RightFuel - http://www.caparorightfuel.com/contact/contact-us.asp
SoloDiesel - http://solodiesel.co.uk/?gclid=CPCg3cnp ... QgodfBZ6DA

None of them list the XF on the compatibility charts, but apparently there are only 4 types of fuel filler cap in use today so someone may have tried one of them!

Not cheap for a fuel cap! But cheaper than throwing away a tank of unleaded and flushing the tank!
 
#27 ·
RPB1 said:
Mis-fueling device fault?
The mis-fueling device (standard factory Jaguar device fitted) seems to have become faulty as it now takes forever to re-fuel has there been any other experience or know issues with this please?
Thanks Richard
I think your mis-fueling device may have triggered which is why it is now very slow to fill. Unfortunately the Jaguar device is not failsafe and it still allows fuel to enter the tank, albeit slowly! The device may have been triggered by being knocked while filling up at some point. Just check and reset it if necessary with the tool in the boot.
 
#28 ·
Hi thank you to all who responded and Andy B wins the prize- thanks for your solution/remedy this was exactly what was required. I found the tool, reset the device and now it’s all back to normal - fantastic forum Richard
 
#30 ·
Ah, well, botanical green car, red face. I'm one of the 'idiots' that also put 10 ltrs of decaffinated into the diesel tank!!!!!!!!!!!!!!! The AA man told me the mis-fuelling device is there to let you know you've put wrong fuel in, not to stop you doing it! Just like doddse it didn't stop me putting petrol in at normal speed. I really thought the mis-fuelling device was there to STOP you putting the wrong fuel in. On advice of the dealer I'm taking the XF 3.0 in to get this mis-fuelling device checked. Interestingly I've never put petrol in my Series III diesel Landie.
Onca
 
#31 · (Edited)
On my XF, the filler will only function if the nozzle has a certain diameter. On the Diesel pumps in Germany the actual filler nozzle is thicker in diameter preventing it going deeper into the tank itself. If one acccidently tries it with normal petrol pump with the thinner nozzle enabling it to go in deeper, a flap cuts off the entry flow which one will then have to reset, as has already been mentioned.
I filled up yesterday, as a matter of fact, and I was suspicious that the fuel cut off much quicker than usual but did not pay it any particular heed. I paid and then switched on and the tank was not full!!
I repeated the filling process and then it was finally full up. This morning I checked the yellow reset flap and it was still ok. The German fillers will switch off automatically if one sets the small trigger on the volume lever on the nozzle. In the UK this feature does not normally function. Anyway the trigger kept switching the fuel delivery off, so I suppose it was faulty......too much delivery pressure?