CRD EGR Blank - Piping build up after lots of kms?

[Beni C]

Hi All,

So this has played on my mind for a while and after doing some digging I can't really find any answers. Like most CRD owners I have blocked my EGR between the cooler and the valve on the inlet side of the motor and I have always wondered if after a considerable amount of kms how much build up there will be in the piping prior to where the blank is placed. I also see that you can now purchase a blank to install where the piping comes off the exhaust side.

So a few questions;
Has anyone with the blank installed between the valve and cooler that has put a fair amount of kms on their motor ripped the piping off to investigate the level of build up?

Has anyone played around with having the blank on the exhaust side vs the inlet side?

If you have, was there any significant difference?

Cheers