Had similar problems with my turbo, although it's all the time, not just cold weather. Have taken the advise above, and disconnected the wiring to the mass airflow sensor and this seems to have done the trick. Next question is, can I leave this disconnected whilst I get a new sensor? I...

Thanks for the reply. I've actually started by disconnecting the wiring to the mass airflow sensor and this seems to have done the trick. Next question is, can I leave this disconnected whilst I get a new sensor. I understand this means the sensor will work at default settings, but what does...

My x reg TD4 is having performance problems. The turbo doesn't seem to kick in until well above 3000 revs. Any idea what revs it should be kicking in at? Last week I was having to drop down to 2nd gear on a slight incline on the motorway because there was such a loss of power. Thanks in...