You'll need more than a spanner to do that job, exhaust/cat of, all intake system, egr, imf, oil feed pipe, turbo of rear of head, etc, then splitting the turbo is fun alone.
PM me as I offer this service to clients.
I had no warning lights come on, I will check the pipes!Mine did this last week, 2005 140 TDi Sportback. Mine was making a loud sucking noise when accelerating to near 2000 revs or more, if I drove it like an old person it was fine but just lacked power, this is after a visit to a garage who found a broken clip on the inter cooler pipe.
Then on A1, after over taking the car seemed to loose all power, engine management light came on also. Another trip to the garage and got the car back today it was a faulty MAF sensor, they replaced it and car is back to normal.
It's booked in on Monday for them to look at it, surely at the worst it will just need a new turbo?If you only bought it last night....take it back! Irrespective of whether you got it from a dealer/private, unless they made you aware of that fault prior to purchase.....it was sold to you unfit for purpose.