Blue smoke at car startup every morning

I realised my 306 TDI was not accelerating beyond 100km/h. On arrival, the car had some difficulty starting.

My mechanic then recommended we replace the following -
Fuel filter
Fuel Pump
Serviced the nozzles
AC motor which was faulty which made it very difficult to start.
Starter

After the above changes, my car discharges some blue smoke shortly at start up every morning.

Asked on 21 March 2012 by ikboye

Answered by Honest John
Failing valve stem oil seals, or failing turbo oil seals.
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