Brake disc diameters (for MY07 cars, others should be the same, I am checking...)
Code positions are 7 for front, 8 for rear
Front
"Saab Brake Size" - Code - Dimensions - Engine
15" brake: AA 285mm dia. - 25mm thick Z18XE, B207E/L, Z19DT/H, (Not CV Z19DTH)
16" brake: AB 302mm dia. - 28mm thick B207R, (CV Z19DTH), All US (except B284L)
16"+ brake: AC 314mm dia. - 28mm thick B284L, Z19DTR
17" brake: AD 345mm dia. - 30mm thick B284R
Rear
"Saab Brake Size" - Code - Dimensions - Engine
15" brake: BA 278mm dia. - 12mm thick (unventilated solid disc) Z18XE, B207E/L, Z19DTH (not CV Z19DTH)
16" brake: BB 292mm dia. - 20mm thick (ventilated) B207R / B284L, Z19DTR (CV Z19DTH/R)
16" brake: BC 292mm dia. - 20mm thick (ventilated) B284R (4WD, larger centre hole)