I had the same problem with my meriva, getting progressively worse over a couple of months. I came to the conclusion of it being the steering column and as you will know part of it is visible by the foot pedals then disappearing behind the plastic upto the steering wheel.
First: whilst driving along and the rattle is at its worst press your foot against the steering column behind your pedals, dangerous I know but hey, if the rattle reduces its probably same prob as mine.
Remove plastic covers under steering wheel using a torque drive.
On removing these you will see the column rises and stops at a clamp on the steering height mechanism.
Try and hold this clamp with one hand and shake the column with the other and you may feel the column moving in the clamp, if so turn steering wheel until you can see the bolt for this clamp which is not a normal bolt why would it be. If my terminology is right ithink its a 8mm torque socket.
If the was loose in the clamp remove the bolt and apply stud lock or a m6 spring or schnor washer and you will find that will do the trick. GOOD LUCK!
Sunday, April 11th, 2010 AT 8:59 AM