To cut a long story short, had a problem earlier this week with the EGR valve breaking, causing exhaust gasses to melt the cooling pipe etc.
Turns out this was due to some bolts not being replaced during some previous work on the turbo (former owner)
All done under warranty but I am still pushing for some compensation as this happened in Chester so I had to stay in a hotel and miss a days work. I'm pushing for a full BMW Service and inspection from my local dealer. Is there anything else I should be asking for to make sure this problem is not going to re-occur?? (The car was purchased from a Toyota garage with Toyota approved warranty)