pdrisc

Update on this.
 
Diagnosis showed it was a Exhaust Gas Temperature sensor that was failing. Unfortunately it was 1 of 3 so an hours labour was needed to find the dodgy one.
 
All three are normally replaced at the same time at the dealer rather than find the failing one but this is usually wise because they all have the same about of wear and tear. In fact I have been advised that the sensor close to the turbo is likely to fail shortly.
 
When they eventually got it out the cable was shorting at the sensor which explains the intermittent fault that I have seen when driving.
 
total cost was £314 with £134 for the sensor from the main dealer. Expensive but way beyond what I could have done.
 
In other news it turns out that one of the rear tyres is shagged so thats more cost. Annoying!
 
Thanks for your assistance this week and I thought I would let you know the final outcome.

Update
New pressure sensor fitted and coded with vcds. All looks to be nominal so fingers crossed all ok in future.
Old one was Made in USA - new one is Made in Malaysia.
£100 plus the part which I picked up from skoda in cardiff