What could be causing my Vauxhall Meriva to 'shudder' when turning left?

I bought my Vauxhall Meriva 10 days ago and it has a few problems. The steering shudders when driving and when turning left. There is also a rattle on the left-hand side and the left indicator does not...

Duff steereo

I have had intermittent problems with my power steering on a Vauxhall Meriva 1.6 06 plate. Garage has quote £700+ for new steering column assembly. Has there been any feedback from Vauxhall on this fault?...