Hi all, I'm in need of a little advice. Just had my Z4 (3.0si Coupe '08) MOT'd at my local BMW main dealer. It failed on n/s/f coil spring being broken. They had no reason why it broke on a car with full dealer history and with only 3k miles done since the last MOT, but thats by the by. The dealer will carry out the repair for £180 including parts. Can anyone tell me where I can source a spring myself and recommend a good BMW specialist in the West Mids area? 