Jolleydiver

My '05 X-Type had suffered all the problems identified here; black smoke on acceleration, slight misfire getting worse, reduced fuel economy. The problems are all gone now - I have had the following work done; 1. Clean the EGR valve - reduced to about 40% opening at one end 2. New fuel pressure regulator valve fitted 3. Fitted 2 new diesel injectors 4. Fitted new Turbo Boost hose Drives as sweet as the day she was born - almost! Happy John

Situation got worse after a long road trip to France. Had the EGR valve cleaned (extremely dirty, apparently only 40% opening one end), replaced the Fuel Pressure Regulator valve. Situation much improved but it still needs two new injectors. Had Terraclean last year and helped enormously.

Wow, that's a nice improvement. My current average is the same 36 - 38mpg, I look forward to that kind of improvement.

Hi Trevor, Can do, I will definitely give a more detailed report in a while.

Well I have to say that having recently paid £90 to have my X-Type 2.0d Terraclean-ed (if that's a word) I am very happy with the results. My reason for having this done were twofold; 1. black smoke on acceleration - all but gone, still al slight amount but nothing like it was 2. Slight hesitation whilst cruising, ranging from almost unnoticeable to quite violent, no loss of power though - this has gone completely. This alone was worth the £90. Terraclean claims; improved mpg and pickup on acceleration. 1. improved mpg - jury still out but it appears to have improved a little. Only done about 150 miles, need at least a months driving to be sure. 2. Improved pickup - again jury still out, I "think" I feel a smoother acceleration but this could be psychosomatic. Not sure if I will ever know as I had no data on acceleration just prior to the cleaning process. That's all Folks

Well I have to say that having recently paid £90 to have my X-Type 2.0d Terraclean-ed (if that's a word) I am very happy with the results. My reason for having this done were twofold; 1. black smoke on acceleration - all but gone, still al slight amount but nothing like it was 2. Slight hesitation whilst cruising, ranging from almost unnoticeable to quite violent, no loss of power though - this has gone completely. This alone was worth the £90. Terraclean claims; improved mpg and pickup on acceleration. 1. improved mpg - jury still out but it appears to have improved a little. Only done about 150 miles, need at least a months driving to be sure. 2. Improved pickup - again jury still out, I "think" I feel a smoother acceleration but this could be psychosomatic. Not sure if I will ever know as I had no data on acceleration just prior to the cleaning process. That's all Folks

Hi Philip, do you mean an EGR Valve? I had the Terraclean process done a few days ago and it's much better. Good luck.

See thread again, pressed wrong button half way through my report, sorry.

Well I have to say that having recently paid £90 to have my X-Type 2.0d Terraclean-ed (if that's a word) I am very happy with the results. My reason for having this done were twofold; 1. black smoke on acceleration - all but gone, still al slight amount but nothing like it was 2. Slight hesitation whilst cruising, ranging from almost unnoticeable to quite violent, no loss of power though - this has gone completely. This alone was worth the £90. Terraclean claims; improved mpg and pickup on acceleration. 1. improved mpg - jury still out but it appears to have improved a little. Only done about 150 miles, need at least a months driving to be sure. 2. Improved pickup - again jury still out, I "think" I feel a smoother acceleration but this could be psychosomatic. Not sure if I will ever know as I had no data on acceleration just prior to the cleaning process. That's all Folks

OK, thanks for that Steve.

Good to know the AR6400-D works. I'm not getting too stressed about it until after tomorrow when it gets the Terraclean treatment. If I still have the problem I will start nosing around at other things.

Hi Trevor, Thanks for the advice. I have not used the additive AR6400-D yet, I have decided to have the TerraClean treatment instead, tomorrow actually. I will post my thoughts in a few day's.

Hi Dave, Thanks for the welcome. Would post a picky if I could work out how to.

Will do!

I have a 2005 X-Type 2.0d (Sport Premium) with 96k on the clock. I have noticed that it belches black smoke on accelerating quite hard but this goes after a few minutes driving. I also have a slight, I hesitate to use the word "misfire", hesitation in power when cruising, no loss of acceleration. Still pulls nicely. I am planning to use some AR6400-D additive. I have been sceptical about additives all my life and have avoided them but this does "claim" to help solve the very problems I am experiencing. I will post my results, assuming the engine does not blow up in which case I will be sitting in a corner crying. In the meantime has anyone else used this AR6400-D additive or have similar problems?

Hi everyone, Only been a member since yesterday and have spent far too long reading posts. I have a lovely X-Type 2.0d Sport Premium in Black. Had it three years and it's had two professional days at refurbishers, if such a word exists, looks amazing when professionally polished. I have a couple of small problems I will post somewhere more appropriate.

"DSC Fault" light comes on when starting, it's normal, as long as it goes out within a couple of seconds.

Hi Footloose, mine does this also. It is normal. I had it MOT'd (by VW, don't ask long story) and they failed it. I explained the error of their ways and they contacted the Jaguar dealership down the road who confirmed it was normal and just the way the light gives you a visual check.

Hi there, I have very similar problems on my X-Type, 96k miles. Slight hesitation occasionally when cruising, power ok but black smoke when accelerating hard. I have purchased, but not yet used, an additive called Archoil AR6400-D. I will post my results, it claims to rectify just this type of problem.