Regeneration impossible C5R / 2007 2.0 HDI RHR

[cit-rotti]

Hello,

VIN VF7**************[VIN obfuscated, can be read by forum staff] - injection Siemens 803 or 803A

The following problem: high turbidity value (soot) - differential pressure at idle "0" mbar - Eolys still approx. 60% - neither in the engine control unit nor in the FAP control unit is an error stored - soot content according to LEXIA almost 65% - since approx. 1500 km none More regeneration - but the message in the diagnostic device "regeneration impossible".

I thank you for your help.

Greetings Wolfgang

[moizeau]

Have you got the bypass hose on the intercooler and are the hot and cold throttle valves vacuum operated by solenoids that sit on top of the aircon compressor?
If you have access to a Diagbox do an 'actuator test' on the valves. Check the hoses that connect to the solenoids for a good tight fit.
Have a read through this to see if it is similar
https://www.frenchcarforum.co.uk/forum/ ... &hilit=407