Independant Servicing Sutton Coldfield/West Mids area

[John Clarke]

This is my first post and I know it covers the same old "should I stick to a MB dealership for servicing or should I use an Independant". My car is a 2 yr old C220 Estate, It is now due B Service at 24000 miles, so my main concern is maintaining the 1 year warranty still left on it. Assuming this is possible can anyone recommend an Independant in the Sutton Coldfield, West Mids area or should I go to Andy Gayle's in Smethwick.
Any advice much appreciated
Regards

John