Thought I would let you know how I went with the above on my CDTI 150 over the weekend.
Firstly this is the prduct:
(I wont go into what it does etc etc )
Anyway - looking at the application there are basically two areas in the CDTI that you can insert this stuff.
1) Application for cleaning the Air intake system as a whole - you need to spray the stuff into the flex pipe directly after the MAF sensor by the airbox. So follow the pipe coming out of the air box - this goes straight into the MAF sensor. Directly after the MAF , undo the jubilee clip and move the flexi pipe away so you have a pipe to spray the stuff down.. DO NOT spray this through the MAF..
2) Application for soley cleaning the Inlet itself - on the CDTI (150) you need to remove the beauty cover and loosen the jubilee clip on the boost pipe that goes straight into the inlet. Then the other end of that pipe - loosen the jubilee clup that holds the pipe to the outlet of the intercooler and remove end. Twist the pipe upwards to you have a hole to spray the stuff down the pipe. Tighten the inlet end of that pipe once moved up so it doesnt fall off.
They are the two areas.. I used the application for direct cleaning of the inlet etc due to the inlet sooting up being a issue on these and my inlet being relativly new - so wanting to keep it that way.
So - once you have the pipe off (in either applicaton 1 or 2 above) you need to apply the stuff as follows:
Car at normal running temp
Have a helper in the cabin of the car
Get them to start the car (it will run very 'odd' due to pipe being removed)
Get them to raise the revs to 2000 rpm
When at a steady 2K - spray the EGR3 into the pipe you have split in a 2 - 3 second burst.. The Revs WILL fluctuate so prepair your helper to back off or on to try and keep the revs at approx 2k
After the 2 - 3 second burst let the car steady at 2k rpm again
Repeat process until can is empty
Once empty - turn car off , re-fit the air pipe and start car and give a nice bootful of revs...
Take the car for a 2 - 3 mile drive.
Expect it to be very smelly and smokey out the exhaust as this stuff is applied and for the immediate drive after.
The result for me was quite impressive.
The Idle is now VERY smooth, pickup is much improved (and remember my inlet is only 15k old) and general running is a lot smoother.
Even the missus commented on how nice the car is driving this morning.
So - all in all for £9 and a few mins to apply it - a job well worth it..
Ill be doing this every 10K service now - and hopefully will prolong the life of inlet and compoments.
(I also did the same on my 2.2 DTi (well 2.2 TiD actually as I have it in Saab form ))
Hope that proves helpful