Not familiar with sutton-in-ashfield area myself but you're not really that far from Nottingham city centre.
Trouble with many independant garages is, that they will not service the car according to the inpsection I items, unless you give them your service booklet which states what needs to be done and specify that it be done.
Local enough for you I could recommend BMW specialists
Series 9
5-7, Fishergate Point, Lower Parliament St, Nottingham, Nottinghamshire NG1 1GD
Tel: 0115 950 4527
(if you come across H.A.C service centre by any chance, claimed BMW, Auid, Porsche, VW, Volvo specialist - stay well clear, this lot screwed my car up big time!)