does anyone have a turbo problem on 2000 Volvo C70

does anyone have a turbo problem

2 answers
Code# P1171 - Fuel & Air metering control malfunction
Slight oil leak from Turbo Compressor Housing
Shudder during acceleration, intermittent
Shudder, In/Out of Overdrive at highway cruising speed, intermittent

Any help would be greatly appreciated !

Sal
These turbo's last along time if the vehicle is properly maintained, what problem are you having?