I went to a local tire store yesterday to buy a set of all weather tires and a wheel alignment to replace the 10 year old Michelin all seasons that have served me well but we're at an age where I didn't trust them at highway speeds. The shop advised me that the mechanic was having trouble with getting the wheels aligned because if he adjusted one wheel the opposite went out of adjustment he would sort it out and it would be ready the following morning? I retrieved the car up this morning and immediately noticed that the steering wheel is now not centred when driving straight but is tilted down to the left about 15-20 degrees. This was never a problem with the old tires on the car so I assume that the car didn't have any bent components etc. nor was there any mention of problems other than noted above Should I take the car back and insist that the steering wheel be centred and what should I tell them as far as how to remedy the problem? I have had good service from this business in the past but they are not Mercedes specialists. I didn't think the steering on my car was exceptionally complex. What are your thoughts?