I'm new to this forum. just recently bought a 520d m sport, really like the car but an annoying judder is giving me sleepless nights. i hope its nothing costly. it only judders when i'm in d but not moving (so at like traffic lights). it stops when i put the a/c on. i'm hoping to take it to be looked at when i get a chance. not sure where yet. i have 4 garages in mind, prestige auto repairs, david paul, mb tech (warrington) or graham martin st helens. has anyone used any of these? any info would be appreciated.