TDCI Pinging / Detonation

[karma_33]

Hi all, just wondering if anyone has had trouble with their Mondeo " pinging ".
I understand that diesel injectors make a ticking and the engines are not the quietest, but .....

When at highway speed, light throttle applications cause a tinkle / pinging sound, and when accelerating from low revs, leaving the lights or exiting the shops there is a quite a severe knocking sound, and some stumbling / missing, after 2200 rpm it is smooth and quiet.

Ford service took it for a drive and the performed a particle filter burnoff procedure, it dosen't seem to be any better though, will have to take it back....