I recently a problem with my Peugeot 307 HDi going into limp mode. A warning light appeared on the dash board indicating an emission problem. I stopped the car for approximately 10 minutes restarted and it all seemed normal. The problem has happened again and i decided to have it checked. I've been told the problem is with the particulate filter and needs urgent attention.
The reason, if it is not either cleaned or replaced it may have a negative effect on the turbo and possibly cause the turbo to fail. Can anyone confirm if they have had a similiar experience and was there any damage to the turbo?

john, December 2010

If you only do short stop/start driving the filter will clog up, normally if you take it for a blast along the motorway at the speed limits and in as low a gear as possible so that the revs are just below the redline limit this will get the system really hot and will burn off the particles in the filter and clear the fault

nigel, December 2010

the two are directly linked so any blockage of your dpf will in turn increase pressure within turbo system and will have an adverse effect on turbo

matt, December 2010

http://www.theaa.com/motoring_advice/fuels-and-environment/diesel-particulate-filters.html

Might help - the article talks of the expense of fitting a new particulate filter.

I know next to nothing about cars but the turbo will be involved with the gasses going in and the DPF with the gasses coming out - in my mind I can see no direct connection - there's an engine in between.

But I could be wrong...

Good luck...

Peccavi, December 2010