
Unfortunately soot and ash cannot be measured with this tool which is a bit of a letdown but you can't have everything and it's done the job I bought it for so can't complain.

It can also check the back pressure which was 7 mbar I think at idle after regen and 30 at 2000 rpm so all good.
It can also so a smooth running controller test to check your injectors so id say its a useful piece of kit to have.Mine were all in the -0.5 to +0.5 range so working fine. The DPF service life is 250,000 km which is 155,000 miles but mine came on at 162,000 miles.
All 6 glowplugs and the controller have codes now ,I notice a lumpiness on startup for 3 secs or so and rev counter bouncing but starts at -5 no problem so I can confirm on this generation they are not needed for regens ,maybe on the next generation they are I dunno. My opinion at this mileage they are just too risky too attempt a change with breakage quite likely.
There is also a code for throttle valve which might be to do with that quacking noise of the egr pressure controller which has recently started but that will do for another day .
