Ds3 dpf pressure readings

[991hughes]

have a ds3 2011 hdi with smoke issue no codes in ecu but dpf pressure show 17mb at idle raising to over 200mb at 3000rpm is this normal readings or would you say its partly blocked thankyou trying to find reason for black smoke issue only 39k on car fsh main dealer don't use any oil ash content at 38% done regen all other readings ok

[RichardW]

Those pressures are too high - but if there is visible black smoke then the DPF is broken.

[991hughes]

Thankyou yes if reved hard or under load I get black smoke I will get it off do you think it's worth trying to have it clean or just replace it aftermarket filters ok? Thankyou for your help

[shtu]

DIY cleaning is cheap enough, just time and mess. I've posted before about it so have a hunt in my older posts.

With those numbers, it's not "partly" blocked. It's very blocked. And the reason is likely to be,

2011 hdi
only 39k

[RichardW]

Check the tail pipe - if it is sooty the filter is broken; no amount of cleaning will fix that. I would avoid an aftermarket one - a second hand OE one would be a better bet.

[991hughes]

Ok great thanks for the advice yes tail pipe is very sooty so probably broken is there a way to check if it's broken appricate your help thankyou

[RichardW]

is there a way to check if it's broken

You've just done it!

[991hughes]

Thankyou