on February 19, 2012, 10:23 pm, in reply to "Re: Citroen Dispatch-Loud Diesel knock on cold start"
Kevin is right about them codes.
Martins suggestions on the timing device is very common.
You can usually hear it clicking a dozen times when you switch the ign on from cold.
If its not clicking i check the resistance across the wired injector, before replacing the timing solenoid.
It normal comes up with a code. The code description might be right but not the code.hth.
regards Ian.